TWI471792B - Method for detecting multi-object behavior of a proximity-touch detection device - Google Patents

Description

Multi-object detection method for proximity and touch panel

The invention relates to a touch panel, in particular to a multi-object proximity and touch device and a gesture detection method.

With the development of optoelectronic technology, the proximity switching device has been widely used in different machines, such as: smart phones, transportation ticket purchasing systems, digital cameras, remote controls and LCD screens. Common Proximity Devices include, for example, Proximity sensors and touch panels. Wherein, the proximity sensor operates in a manner that when an object is in proximity to the sensing range of the sensor, the proximity sensor senses that the object is close to the proximity by touching the object or not touching the object. The location of the sensor. The proximity sensor converts the induced signal into an electronic signal, and the system or machine responds appropriately according to the electronic signal to achieve the purpose of controlling the state of the system. The touch panel is used to calculate the coordinates of the touch, such as the calculation of single touch coordinates or multi-touch coordinates.

Proximity sensors, also known as Proximity Switches, are used in many LCD TVs, power switches, appliance switches, access control systems, handheld remote controls and mobile phones. In recent years, they have been indispensable for these devices and devices. one. It is responsible for detecting if an object is close to let the controller know where the current object is. In the case of home appliance applications, the proximity sensor is used in a large number of control of the light source. As long as it is close to the proximity sensor or touches the proximity sensor, the light source can be turned on or off according to the sensing signal source. The types and appearances of the proximity sensors are numerous, such as rectangular, square, cylindrical, circular, groove, and multi-point. According to its principle, it can be divided into the following four types: inductive, capacitive, photoelectric and magnetic.

It can be seen from the above that the application fields of the proximity sensor and the touch panel are extremely different, and are respectively used as calculations of the switch and the touch coordinates. In the current technology, there is no integrated application technology for how to handle both the proximity sensor and the touch panel. Therefore, how to integrate both the proximity sensor and the touch panel, thereby integrating the short-distance spatial sensing function of the proximity sensor with the touch coordinate detection function, becomes a possibility that the electronic device can greatly increase the application function. research direction.

Among them, the scanning and capacitance detecting methods of the projected capacitive touch panel are generally classified into a self-capacitance type and a mutual capacitance type. Self-capacitance is applied to the X-axis and Y-axis sensing lines of the projected capacitive touch panel. The X-axis and Y-axis sensing lines are charged and discharged at different timings to detect the capacitive sensing changes of the sensing lines. the amount. In this way, the information touched by the object can be obtained by changing the capacitance of different scan lines. In other words, the self-capacitive capacitive touch panel has to determine the position of the touch point by the capacitance change of the X-axis and Y-axis sensing lines. The same is true for the part of multi-touch detection.

For example, U.S. Patent No. 5,825,352 discloses a multi-touch detection technique on a touch pad. The 352 patent uses the peaks and troughs of the X-axis sensing signal to effectively determine the multi-point X-axis touch position, and effectively determines the multi-point Y-axis touch position on the Y-axis sensing signal peaks and troughs. . This judging technology is the basis of the multi-touch judgment technology of the self-capacitive capacitive touch panel.

However, the 352 patent cannot demonstrate how to perform the calculation and resolution of the proximity gesture and touch coordinates when synchronizing proximity detection and touch detection.

Therefore, it is necessary to think about how to synchronize or non-synchronize the proximity gesture and the multi-touch coordinates on the proximity and touch panel with the proximity sensing and touch detection functions.

In view of the above problems in the prior art, the present invention provides a capacitive proximity sensing and touch detection device using a self-capacitive capacitive touch panel (for use as a proximity and touch sensing panel) or a self-capacitive proximity sensing panel and touch. The control panel system (used as a proximity and touch sensing panel) to detect proximity, hover and touch of objects in the space into the three-dimensional sensing range of the touch panel, and output digital detection signals, hover coordinates or touch Hit the coordinates.

The invention provides a proximity detecting and multi-object detecting method for a touch panel, which is applied to a proximity and touch panel, and comprises the following steps: scanning the proximity and touch panel to obtain a plurality of axial sensing signals, when the axes are When the sensing signal is greater than a proximity threshold, the axial sensing signals greater than the proximity threshold are converted into digital sensing signals; when the axial sensing signals are greater than a touch threshold, the greater than the touch is greater than the touch A first peak of the sensing signals of the threshold determines a touch of the first object, and determines a first valley value of the first peak, and then determines a second peak according to one of the first valley values For the touch of a second object, the second peak is followed by a second valley value; and the touch coordinates corresponding to the first object and the second object are calculated according to the first peak and the second peak; and, when When the axial sensing signals are greater than the proximity threshold, the digital sensing signals are output, and when the axial sensing signals are greater than the touch threshold, the touch coordinates are output, wherein the proximity threshold is relatively smaller than the touch Touch the threshold.

The invention provides a proximity detecting and multi-object detecting method for a touch panel, which is applied to a proximity and touch panel, and comprises the following steps: scanning the proximity and touch panel to obtain a plurality of axial sensing signals, when the axes are When the inductive signal is greater than a proximity threshold, the axial sensing signals greater than the proximity threshold are converted into digital sensing signals; when the axial sensing signals are greater than a hover threshold, the hovering is greater than the hovering a third peak of the axial sensing signals of the threshold determines a hovering of a third object, and determines a third valley value of the third peak, and then according to one of the third valleys The peak value is determined as a hovering of a fourth object, and the fourth peak is followed by a fourth valley value; and the hovering coordinates corresponding to the third object and the fourth object are calculated according to the third peak and the fourth peak; When the axial sensing signals are greater than a touch threshold, determining a touch of the first object according to a first peak of the sensing signals greater than the touch threshold, and determining to connect one of the first peaks a valley value, and then according to the connection a second peak of a valley value is determined as a touch of a second object, the second peak is followed by a second valley value; and the first object and the second object are calculated according to the first peak and the second peak Touching the coordinates; and, when the axial sensing signals are greater than the proximity threshold, outputting the digital sensing signals, and when the axial sensing signals are greater than the hovering threshold, outputting the hovering coordinates, when When the axial sensing signals are greater than the touch threshold, the touch coordinates are output, wherein the proximity threshold is relatively smaller than the hover threshold, and the hover threshold is relatively smaller than the touch threshold.

The invention further provides a multi-object detection method for a proximity and touch panel, which is applied to a proximity and touch panel, and comprises the following steps: when the axial sensing signals are greater than a hovering threshold, according to the hovering a third peak of the axial sensing signals of the threshold determines a hovering of a third object, and determines a third valley value of the third peak, and then according to one of the third valleys The peak value is determined as a hovering of a fourth object, and the fourth peak is followed by a fourth valley value; and the hovering coordinates corresponding to the third object and the fourth object are calculated according to the third peak and the fourth peak; When the axial sensing signals are greater than a touch threshold, determining a touch of the first object according to a first peak of the sensing signals greater than the touch threshold, and determining to connect one of the first peaks a valley value is further determined as a touch of a second object according to the second peak of the first valley value, the second peak is followed by a second valley value; and the second peak is calculated according to the first peak value and the second peak value Should touch the seat of the first object and the second object And when the axial sensing signals are greater than the hovering threshold, outputting the hovering coordinates, and when the axial sensing signals are greater than the touch threshold, outputting the touch coordinates, wherein the The hover threshold is relatively less than the touch threshold.

The invention further provides a multi-object detection method for a proximity and touch panel, which is applied to a proximity and touch panel, comprising the steps of: scanning the proximity and touch panel to obtain a plurality of axial sensing signals, when the axes are When the sensing signal is greater than a proximity threshold, the axial sensing signals greater than the proximity threshold are converted into digital sensing signals; when the axial sensing signals are greater than a touch threshold, the greater than the touch is greater than the touch A first peak of the sensing signals of the threshold determines a touch of the first object, and determines a first valley value of the first peak, and then determines a second peak according to one of the first valley values For the touch of a second object, the second peak is followed by a second valley value; and the touch coordinates corresponding to the first object and the second object are calculated according to the first peak and the second peak; and, when When the axial sensing signals are greater than the proximity threshold, determining a proximity gesture according to the digital sensing signal and outputting a proximity gesture, and when the axial sensing signals are greater than the touch threshold, outputting the touch coordinates, Among them, the Then the threshold is relatively smaller than the touch threshold.

The present invention further provides a method for detecting a plurality of objects of a proximity and touch panel, comprising the steps of: scanning the proximity and touch panel to obtain a plurality of axial sensing signals, when the axial sensing signals are greater than a proximity threshold Converting the axial sensing signals greater than the proximity threshold into digital sensing signals; and when the axial sensing signals are greater than a hovering threshold, the axial sensing signals are greater than the hovering threshold a third peak of the third object determines a hovering of the third object, and determines a third valley value of the third peak, and then determines a fourth object suspension according to the fourth peak of the third valley value. Stopping, the fourth peak continues with a fourth valley value; calculating a hovering coordinate corresponding to the third object and the fourth object according to the third peak and the fourth peak; when the axial sensing signals are greater than one touch At the threshold, determining a touch of the first object according to a first peak of the sensing signals greater than the touch threshold, and determining to connect the first valley value of the first peak, and then according to the connection One of the valley values Touching a second object, the second peak is followed by a second valley value; calculating a touch coordinate corresponding to the first object and the second object according to the first peak and the second peak; and, when When the axial sensing signal is greater than the proximity threshold, determining a proximity gesture according to the digital sensing signal and outputting a proximity gesture, and outputting the hanging coordinates when the axial sensing signals are greater than the hovering threshold When the axial sensing signals are greater than the touch threshold, the touch coordinates are output, wherein the proximity threshold is relatively smaller than the hover threshold, and the hover threshold is relatively smaller than the touch threshold.

The present invention further provides a method for detecting a plurality of objects of a proximity and touch panel, comprising the steps of: scanning an output signal of the proximity and touch panel, when the axial sensing signals are greater than a hovering threshold, Determining a hovering of a third object according to a third peak of the axial sensing signals greater than the hovering threshold, and determining to continue the third valley value of the third peak, and then following the third valley The fourth peak value is determined as a hovering of a fourth object, and the fourth peak is followed by a fourth valley value; and the third object and the fourth peak are calculated according to the third peak and the fourth object Stopping the coordinates; when the axial sensing signals are greater than a touch threshold, determining a touch of the first object according to a first peak of the sensing signals greater than the touch threshold, and determining to continue the first a first valley value of a peak, and then determining, according to the second peak of the first valley value, a touch of the second object, the second peak successively having a second valley value; according to the first peak value The second peak is calculated corresponding to the first object and the Touching coordinates of the two objects; and, when the axial sensing signals are greater than the hovering threshold, outputting the hovering coordinates, and outputting the touch when the axial sensing signals are greater than the touch threshold The touch target, wherein the hover threshold is relatively smaller than the touch threshold.

The above and other objects, features and advantages of the present invention will become more apparent and understood.

First, please refer to FIG. 1A , which is a schematic diagram of a capacitive sensing detection action of the proximity and touch detection device of the present invention. The X-axis electrode 11 and the Y-axis electrode 13 are provided above and below the capacitive touch panel 10. When the finger F1 is away from the panel D1, the sensing amount is I1; when the finger F2 is away from the panel D2, the sensing amount is I2; when the finger F3 is away from the panel D3, the sensing amount is I3; when the finger F4 is away from the panel D4, Its induction is I4. As is apparent from Fig. 1A, D1>D2>D3>D4, and the amount of inductance is opposite, I1<I2<I3<I4. Therefore, the magnitude of the distance can be reversed by the step size of the induced amount. The present invention utilizes this basic principle for three-dimensional touch detection, and uses different thresholds to determine touch, hovering, or proximity. In this way, the invention can achieve the use of the proximity and touch detection device to allow the user to control the electronic device by different control methods such as touch, hover, and proximity.

Next, please refer to FIG. 1B , which is a schematic diagram of a capacitive sensing detection operation using a third-order threshold value of the proximity and touch detection device of the present invention. As seen in Figure 1B, the present invention sets three different thresholds, namely Touch Threshold (T _T ), Hovering Threshold (T _H ), and Proximity (Proximity). Threshold, T _P ). Wherein, the touch threshold (T _T ) is relatively greater than the hovering threshold (T _H ), and the hovering threshold (T _H ) is relatively greater than the proximity threshold (T _P ). From the definition of the literal, it is clear that the touch threshold (T _T ) is used to determine whether the object is in touch control action, and the hover threshold (T _H ) is used to determine whether the object is hovering control action. The proximity threshold (T _P ) is used to determine whether the object is in close proximity control. Because of different control actions, the relative sensing amounts will be different. Therefore, the present invention performs the detection difference of different control actions by defining the threshold.

Next, please refer to FIGS. 2A-3D, which will illustrate several embodiments of the proximity and touch detection device that can be utilized in the present invention.

Please refer to FIG. 2A, which is a first embodiment of a functional block diagram of the proximity and touch detection device of the present invention. The touch panel 10 of FIG. 2A is a diamond structure electrode commonly used in a general projected capacitive touch panel, and has a structure in which the X-axis electrode 15 and the Y-axis electrode 13 are respectively provided in two layers. The control unit 22 is connected to the touch panel 10 through the connecting board 24, and can detect the capacitive sensing signal generated when the object approaches or touches. When the sensing signal is greater than the proximity threshold, the proximity data is generated. When the sensing signal is greater than the hovering threshold, the hovering coordinate data is generated. When the sensing signal is greater than the touch threshold, the touch coordinate data is generated. In the application, it is optional to output only the proximity data, the touch data, or only the hover coordinate data, the touch coordinate data, or only the proximity data, or only the near data and the hover coordinate data. It depends on different applications.

The control unit 22 includes a capacitive sensing detection circuit 15 and a control circuit 18. The capacitive sensing detection circuit 15 is connected to the touch panel 10 via the connection board 24 for detecting the sensing signal generated by the touch panel 10 . The control circuit 18 is connected to the capacitive sensing detection circuit 15. When the axial sensing signals are greater than a proximity threshold, a proximity data is generated according to the sensing signal. When the sensing signal is greater than a hovering threshold, the sensing signal is calculated according to the sensing signal. At least one hovering coordinate data of the object, when the sensing signal is greater than the touch threshold, calculating at least one touch coordinate data of the object according to the sensing signal. The control circuit 18 calculates a central feature value and at least one edge feature value of each object according to the proximity data, calculates the palm shape of each object according to the central feature value and the edge feature value, and then moves and palms according to the central feature value. The change produces a proximity gesture. The control circuit 18 generates a hovering gesture based on the change in the hovering coordinate data. The control circuit 18 generates a touch gesture according to the change of the touch coordinate data.

Please refer to FIG. 2B , which is a second embodiment of a functional block diagram of the proximity and touch detection device of the present invention. The touch panel 10 of FIG. 2B is a diamond structure electrode commonly used in a general projected capacitive touch panel, and has a structure in which the X-axis electrode 15 and the Y-axis electrode 13 are respectively provided in two layers. The control unit 22 is connected to the touch panel 10 through the connection board 24, and has a proximity detection mode and a touch gesture detection mode. When the proximity detection mode is executed, the proximity data is generated according to the sensing signal; when the touch gesture is detected In the measurement mode, at least one of the objects of the object is calculated according to the touch signal.

The control unit 22 includes a touch detection circuit 14, a proximity detection circuit 16, and a control circuit 18. The proximity detecting circuit 16 is connected to the touch panel 10 via the connecting board 24 for receiving the sensing signal and generating the proximity data. The touch detecting circuit 14 is connected to the touch panel 10 via the connecting board 24 for receiving the touch signal and calculating Touching the coordinates; the control circuit 18 is connected to the proximity detecting circuit 16 and the touch detecting circuit 14 for controlling the switching execution of the proximity detecting mode and the touch detecting mode, and transmitting the proximity data and the touch coordinates .

Please refer to FIG. 2C , which is a third embodiment of a functional block diagram of the proximity and touch detection device of the present invention. In FIG. 2C , the proximity sensing and touch detecting device includes a touch panel 10 , a proximity sensing panel 12 , a connecting plate 24 and a control unit 22 . The touch panel 10 is a diamond structure electrode commonly used in a general projected capacitive touch panel, and has a structure in which the X-axis electrode 15 and the Y-axis electrode 13 are respectively provided in two layers. The touch panel 10 can also adopt other touch panels with multi-touch functions, such as an optical touch panel. The proximity sensing panel 12 is a panel capable of providing proximity detection of a plurality of objects, and may be a panel with a proximity sensing function built in the LCD, or a proximity sensing panel separately formed on the color filter, or separately fabricated outside the touch panel. A proximity sensor panel on the Cover lens.

The control unit 22 is connected to the touch panel 10 and the proximity sensor panel 12 through the connection board 24, and has a proximity detection mode and a touch gesture detection mode. When the proximity detection mode is executed, the control unit 22 transmits the touch detection mode. The sensing signal generates the proximity data; when the touch gesture detection mode is executed, at least one of the objects of the object is calculated according to the touch signal transmitted by the proximity sensing panel 12.

The control unit 22 includes a touch detection circuit 14, a proximity detection circuit 16, and a control circuit 18. The proximity detecting circuit 16 is connected to the proximity sensing panel 12 via the connecting board 24 for receiving the sensing signal and generating the proximity data. The touch detection circuit 14 is connected to the touch panel 10 via the connection board 24 for receiving the touch signal and calculating the touch coordinates. The control circuit 18 is connected to the proximity detecting circuit 16 and the touch detecting circuit 14 for controlling the switching execution of the proximity detecting mode and the touch detecting mode, and transmitting the proximity data and the touch coordinates.

The proximity data may include two parts, which are respectively the proximity data generated according to the proximity threshold value, and the other is the hovering coordinate data calculated according to the hovering threshold value.

2D is a schematic diagram of selecting a proximity detection mode in the first embodiment of the functional block diagram of the proximity and touch detection device of the present invention. FIG. 2D illustrates that the present invention can also perform proximity sensing control by selectively detecting a capacitive touch panel capable of detecting multi-touch coordinates. For example, in the 2D image, the Y-axis electrodes Y1, Y4, Y7, ..., Y3n+1, etc. in the 2B map are selected, and the electrodes such as the X-axis electrodes X1, X4, X7, ..., X3m+1 are selected as proximity detectors. The detection electrode of the test mode, the remaining electrodes are not used for proximity detection.

Please refer to FIG. 3A , which is a fourth embodiment of a functional block diagram of the proximity and touch detection device of the present invention. The touch panel 10 of FIG. 3A is a diamond structure electrode commonly used in a general projected capacitive touch panel, and has a structure in which the X-axis electrode 15 and the Y-axis electrode 13 are respectively provided in two layers. The control unit 22 is connected to the touch panel 10 through the connecting board 24, and can detect the capacitive sensing signal generated when the object approaches or touches. When the sensing signal is greater than the proximity threshold, the proximity data is generated. When the sensing signal is greater than the hovering threshold, the hovering coordinate data is generated. When the sensing signal is greater than the touch threshold, the touch coordinate data is generated. In the application, it is optional to output only the proximity data, the touch data, or only the hover coordinate data, the touch coordinate data, or only the proximity data, or only the near data and the hover coordinate data. It depends on different applications.

FIG. 3A is a fourth embodiment of a functional block diagram of the proximity and touch detection device of the present invention. The touch panel 17 shown in FIG. 3A is a strip-shaped structure electrode commonly used in a general projected capacitive touch panel, and has a structure in which the X-axis electrode 21 and the Y-axis electrode 19 are respectively provided in two layers. The structure and function of the control unit 22 are the same as those of the second embodiment, and will not be described again.

FIG. 3B is a fifth embodiment of a functional block diagram of the proximity and touch detection device of the present invention. The touch panel 17 shown in FIG. 3B is a strip-shaped structure electrode commonly used in a general projected capacitive touch panel, and has a structure in which the X-axis electrode 21 and the Y-axis electrode 19 are respectively provided in two layers. The structure and function of the control unit 22 are the same as those of the second embodiment, and will not be described again.

FIG. 3C is a sixth embodiment of a functional block diagram of the proximity and touch detection device of the present invention, which is an embodiment including the touch panel 17 and the proximity sensing panel 12, and is similar to the embodiment of FIG. 2C. . The touch panel 17 shown in FIG. 3C is a strip-shaped structure electrode commonly used in a general projected capacitive touch panel, and has a structure in which the X-axis electrode 21 and the Y-axis electrode 19 are respectively provided in two layers. The structure and function of the control unit 22 are the same as those of the second embodiment, and will not be described again.

FIG. 3D is a schematic diagram of selecting a proximity detection mode in the fifth embodiment of the functional block diagram of the proximity and touch detection device of the present invention. FIG. 3D illustrates that the present invention can also perform proximity sensing control by selectively detecting a capacitive touch panel capable of detecting multi-touch coordinates. For example, in the 3D diagram, the Y-axis electrodes Y1, Y4, Y7, ..., Y3n+1, etc. in the 3B diagram are selected, and the X-axis electrodes X1, X4, X7, ..., X3m+1 and the like are selected as proximity detectors. The detection electrode of the test mode, the remaining electrodes are not used for proximity detection.

The capacitive touch panel can be summarized as: having a plurality of electrodes, detecting the proximity of at least one object to generate a plurality of axis sensing signals.

The capacitive touch panel detects proximity data generated by multiple objects, such as hand movements that may occur with one hand, or hand movements that may occur with both hands. Or, hand movements generated by many people and more. The present invention calculates the central feature value, the edge feature value, and the like of each object by the data characteristics of the proximity data on the capacitive touch panel. After the eigenvalues of each object are obtained, the palm shape of each object can be calculated, and then the individual palm shape changes and moving directions of the single object and the multiple objects can be calculated according to the change of the palm shape. Wherein, the moving direction may be a two-dimensional or three-dimensional moving direction. Finally, based on the direction of movement and the change of the palm shape of one or more objects, the final gesture change can be obtained.

In addition, the present invention can also implement the object of the present invention by using another device structure embodiment, that is, using a proximity sensor panel to realize proximity sensing detection of multiple objects, and using a touch panel to realize touch of multiple objects. Touch detection. This is different from the hardware architecture that uses a single capacitive touch panel to achieve both detections. The proximity and touch detection device of the architecture includes: a proximity sensing panel, a touch panel and a control unit. The proximity sensing panel has a plurality of electrodes that detect the proximity of at least one of the objects to generate an individual corresponding sensing signal. The touch panel detects the touch of at least one object to generate an individual corresponding touch signal. The control unit calculates the central feature value and the edge feature value of each object according to the proximity data, and calculates the palm shape of each object according to the central feature value and the edge feature value, and then generates according to the movement of the central feature value and the change of the palm shape. Proximity gesture.

Hereinafter, several embodiments will be described to explain how the present invention uses the axial sensing signal of the self-capacitive capacitive touch panel and the limitation of different thresholds to obtain digital sensing signals, hovering coordinates and touches representing the proximity data. coordinate. Finally, by pre-simulating different palm and palm shape changes, the judgment of the palm shape and the judgment of the proximity gesture represented by the proximity data are made.

Please refer to FIG. 4A and FIG. 4B , which are examples of the method for detecting multiple objects in the proximity and touch panel of the present invention, and the left and right hand palms respectively respectively to the right and left pan gestures (clap gestures) and the variation of the sensing amount. schematic diagram. This embodiment is an embodiment of a proximity control action.

In FIG. 4A, when the right hand 2 and the left hand 3 are at t=t1, they are in the shape of a hand knife, that is, in the form of a hand knife with respect to the capacitive touch panel 10. When t=t1, the right hand 2 and the left hand 3 are respectively at the edge of the capacitive touch panel 10. In FIG. 4B, when the right hand 2 and the left hand 3 are at t=tn, they are also a palm shape, that is, a shape of a hand knife with respect to the capacitive touch panel 10. When t=tn, the right hand 2 and the left hand 3 are respectively at the center of the capacitive touch panel 10. That is, FIGS. 4A and 4B illustrate that the right hand 2 and the left hand 3 gradually approach each other, that is, the posture of the clapping. This gesture can be discriminated by the present invention and an appropriate gesture can be output. For example, it can be called a clapping gesture, which is a method of moving inwardly by the palm of the hand.

In FIG. 4A, when t=t1, the capacitive touch panel 10 detects the X-axis sensing signal and the Y-axis sensing signal generated by the right hand 2 and the left hand 3, respectively, which are the hand-knife portion of the right hand 2 and The hand knife portion of the left hand 3 is close to the sensing signal generated by the capacitive touch panel 10. Since the distance of the palm is more than 3 cm away from the capacitive touch panel 10 (for example, the sensing distance of the hovering is set to 3 cm), the capacitive touch panel 10 detects when t=t1. The amount of inductance of the left hand 3 and the right hand 2 can be seen in the X-axis sensing signal and the Y-axis sensing signal, respectively, both at the > near threshold (T _P ) and less than the hover threshold (T _H ). Therefore, it can be judged that it is a close-up control action.

In FIG. 4B, when t=tn, the capacitive touch panel 10 detects the X-axis sensing signal and the Y-axis sensing signal generated by the right hand 2, which is close to the palm portion of the right hand 2 and the palm portion of the left hand 3. The sensing signal generated by the capacitive touch panel 10. Since the distance of the palm is more than 3 cm away from the capacitive touch panel 10 (for example, the sensing distance of the hovering is set to 3 cm), the capacitive touch panel 10 detects when t=tn. The amount of inductance of the left hand 3 and the right hand 2 can be seen in the X-axis sensing signal and the Y-axis sensing signal, respectively, both at the > near threshold (T _P ) and less than the hover threshold (T _H ). Therefore, it can be judged that it is a proximity control action, and in the present invention, the action of converting the axial sensing signal into a digital detection signal is performed.

Observing the 4A-4B figure, the change of the X-axis sensing signal generated by the capacitive touch panel 10 during the movement of the right hand 2 and the left hand 3 from the edge of the capacitive touch panel 10 toward the center by the palm of the hand is also observed. Moved from the edge to the center. That is, the palm shape has not changed, but the palm shape moves. Therefore, the X-axis sensing signal and the Y-axis sensing signal of FIG. 4A can be converted into the palm shape represented by the hand, that is, the palm shape of the hand, which forms a relatively wide range of uniform signal patterns on the Y axis, and is in the X shape. The peak shape of the shaft forming portion. The central characteristic value represented by the X-axis sensing signal and the Y-axis sensing signal of FIG. 4A can also be calculated. During the movement of the palm shape, the movement process of the central feature value can be represented, that is, the movement of the central feature value represents the movement of the palm shape.

In the palm shape of the 4A~4B, it can be easily seen that the two-dimensional central feature value changes, about the right hand 2 moves from right to left and the left hand 3 moves from left to right, and the two gradually approach, that is, Shrinking (or shrinking) movement.

Next, please refer to FIG. 5A and FIG. 5B , which are schematic diagrams of the clockwise and counterclockwise translation of the left and right hand grips in the multi-object detection method of the proximity and touch panel of the present invention, and the variation of the sensing quantity. . This embodiment is an embodiment of a proximity control action.

In FIG. 5A, when the right hand 2 and the left hand 3 are at t=t1, they are in the shape of a palm, that is, in the form of a hand knife with respect to the capacitive touch panel 10. When t=t1, the right hand 2 and the left hand 3 are respectively at the edge of the capacitive touch panel 10. In FIG. 5B, when the right hand 2 and the left hand 3 are at t=tn, they are also a palm shape, that is, a form of a hand knife with respect to the capacitive touch panel 10. When t=tn, the right hand 2 and the left hand 3 are respectively at the bottom end of the capacitive touch panel 10. That is, FIGS. 5A and 5B illustrate that the right hand 2 and the left hand 3 respectively rotate in a counterclockwise and clockwise direction, and assume a posture like a fan. This gesture can be discriminated by the present invention and an appropriate gesture can be output. For example, it can be referred to as a fan-style gesture, which is moved by the palm of the hand to retract in the direction of the body.

In FIG. 5A, when t=t1, the capacitive touch panel 10 detects the X-axis sensing signal and the Y-axis sensing signal generated by the right hand 2 and the left hand 3, respectively, which are the hand-knife portion of the right hand 2 and The hand knife portion of the left hand 3 is close to the sensing signal generated by the capacitive touch panel 10. Since the distance of the palm is more than 3 cm away from the capacitive touch panel 10 (for example, the sensing distance of the hovering is set to 3 cm), the capacitive touch panel 10 detects when t=t1. The amount of inductance of the left hand 3 and the right hand 2 can be seen in the X-axis sensing signal and the Y-axis sensing signal, respectively, both at the > near threshold (T _P ) and less than the hover threshold (T _H ). Therefore, it can be judged that it is a close-up control action.

In FIG. 5B, when t=tn, the capacitive touch panel 10 detects the X-axis sensing signal and the Y-axis sensing signal generated by the right hand 2, which are the hand knife portion of the right hand 2 and the left hand 3 respectively. The hand knife portion is close to the sensing signal generated by the capacitive touch panel 10. Since the distance of the palm is more than 3 cm away from the capacitive touch panel 10 (for example, the sensing distance of the hovering is set to 3 cm), the capacitive touch panel 10 detects when t=t1. The amount of sensing of the left hand 3 and the right hand 2 can be seen in the X-axis sensing signal and the Y-axis sensing signal, respectively, both greater than the proximity threshold (T _P ) and less than the hover threshold (T _H ). Therefore, it can be judged that it is a proximity control action, and in the present invention, the action of converting the axial sensing signal into a digital detection signal is performed.

Observing the 5A~5B figure, the change of the X-axis sensing signal generated by the capacitive touch panel 10 during the movement of the right hand 2 and the left hand 3 from the edge of the capacitive touch panel 10 toward the center by the palm of the hand is also observed. In order to move from the edge of the panel to the bottom end of the panel, the change of the Y-axis sensing signal is moved from the top end of the capacitive touch panel 10 to the bottom end. Therefore, the X-axis sensing signal and the Y-axis sensing signal of FIG. 5A can be converted into the palm shape represented by the hand, that is, the palm shape of the hand, which forms a relatively wide range of uniform signal patterns on the Y axis, and is in the X shape. The peak shape of the shaft forming portion. The central characteristic value represented by the X-axis sensing signal and the Y-axis sensing signal of Fig. 5A can also be calculated. During the movement of the palm shape, the movement process of the central feature value can be represented, that is, the movement of the central feature value represents the movement of the palm shape.

However, as illustrated in Figures 4A-4B, the movement of the central eigenvalues must be moderately converted to truly represent the movement of the palm. As far as the user is concerned, this conversion process does not appear and the user does not care. The main point is that the present invention can reverse the gesture of the user's palm movement and variation by using the proximity sensing signal of the capacitive touch panel 10.

In the palm shape of the 5A~5B, it can be easily seen that the two-dimensional central characteristic value changes, about the right hand 2 rotates counterclockwise and the left hand 3 rotates clockwise, and the two gradually approach the capacitive touch panel 10 The bottom end, that is, the movement for the two hands to turn down.

Next, please refer to FIG. 6A and FIG. 6B , which are schematic diagrams of the method for detecting the multi-objects of the proximity and touch panel of the present invention, wherein the left and right hand-handed palms are turned into a flat palm shape and the variation of the sensing amount is obtained. . This embodiment is an embodiment of a proximity control action.

In FIG. 6A, when the right hand 2 and the left hand 3 are at t=t1, they are in the shape of a hand blade, that is, in the form of a hand knife with respect to the capacitive touch panel 10. When t=t1, the right hand 2 and the left hand 3 are respectively at the edge of the capacitive touch panel 10. In FIG. 6B, when the right hand 2 and the left hand 3 are at t=tn, they are flat palms, that is, in a flat configuration with respect to the capacitive touch panel 10. When t=tn, the right hand 2 and the left hand 3 are respectively on both sides of the capacitive touch panel 10. That is, FIGS. 6A and 6B illustrate that the right hand 2 and the left hand 3 are respectively turned into a flat shape in the form of a hand knife. This gesture can be discriminated by the present invention and an appropriate gesture can be output. For example, it can be referred to as a cap gesture, which is formed by the palms of the two hand blades respectively covering the panel in the direction of the panel.

In FIG. 6A, when t=t1, the capacitive touch panel 10 detects the X-axis sensing signal and the Y-axis sensing signal generated by the right hand 2 and the left hand 3, which are respectively the hand knife part and the left hand 3 of the right hand 2 The hand knife portion is close to the sensing signal generated by the capacitive touch panel 10. Among them, the darker part is the larger one, that is, the hand knife part of the right hand 2 and the hand knife part of the left hand 3 are closer to the part of the capacitive touch panel 10; and the lighter part is less sensitive. That is, the hand knife portion of the right hand 2 and the hand knife portion of the left hand 3 are farther away from the portion of the capacitive touch panel 10.

In FIG. 6B, when t=tm, the capacitive touch panel 10 detects the X-axis sensing signal and the Y-axis sensing signal generated by the right hand 2, which is close to the palm portion of the right hand 2 and the palm portion of the left hand 3. The sensing signal generated by the capacitive touch panel 10.

In FIG. 6A, at t=tn, the capacitive touch panel 10 detects the X-axis sensing signal and the Y-axis sensing signal generated by the right hand 2, which is close to the palm portion of the right hand 2 and the palm portion of the left hand 3. The sensing signal generated by the capacitive touch panel 10.

Observing the 6A~6B figure, in the process of the right hand 2 and the left hand 3 being changed from the edge of the capacitive touch panel 10 to the flat palm shape to the capacitive touch panel 10 by the palm of the hand, the capacitive touch is performed. The panel 10 generates a change in the X-axis sensing signal and the Y-axis sensing signal, that is, the palm shape has a gradual change trend. In Fig. 6A, it can be judged that it is a palm shape, and in Fig. 6B, it can be judged that it is a palm flat palm shape. The change of the palm shape can be converted from the X-axis sensing signal and the Y-axis sensing signal of the 6A~6B picture respectively to the palm shape represented by it. Similarly, the central eigenvalues represented by the X-axis sensing signals and the Y-axis sensing signals of FIGS. 6A-6B can be calculated. During the movement of the palm shape, the movement process of the central feature value can be represented, that is, the movement of the central feature value represents the movement of the palm shape.

Next, please refer to another embodiment of the palm shape change, 7A, 7B, which is a multi-object detection method of the proximity and touch panel of the present invention, the right hand five-point palm shape is turned into a large palm shape (grab The embodiment of the palm shape and the variation of the induction amount. This embodiment is an embodiment of a hovering control action.

In FIG. 7A, the right hand 2 has a five-point palm shape at t=t1, that is, a shape of five points with respect to the capacitive touch panel 10. In Fig. 7B, when the right hand 2 is at t = tn, it changes to a single large palm shape, that is, a form in which the five fingers of the capacitive touch panel 10 are concentrated together.

In FIG. 7A, when t=t1, the capacitive touch panel 10 detects the X-axis sensing signal and the Y-axis sensing signal generated by the right hand 2, and the top of the five fingers of the right hand 2 is close to the capacitive touch. The sensing signal generated by the control panel 10. It can be found that these inductive signals are greater than the hovering threshold (T _H ) but less than the touch threshold (T _T ), and therefore, this is a hovering control action, and in the present invention, the action of calculating the hovering coordinates is performed.

In FIG. 7B, when t=tn, the capacitive touch panel 10 detects the X-axis sensing signal and the Y-axis sensing signal generated by the right hand 2, which is the five-finger tip of the right hand 2 approaches the capacitive touch panel 10 The resulting inductive signal. It can be found that these inductive signals are greater than the hovering threshold (T _H ) but less than the touch threshold (T _T ), and therefore, this is a hovering control action, and in the present invention, the action of calculating the hovering coordinates is performed.

Observing the 7A-7B figure, the capacitive touch panel 10 generates X-axis sensing signals and Y-axis sensing signals during the process of changing the right hand 2 from the five-finger palm to the large palm. From the X-axis inductive signal and the Y-axis inductive signal of Figure 7A, the palm shape represented by it can be converted, that is, the five-point palm shape. Similarly, the palm shape represented by the X-axis sensing signal and the Y-axis sensing signal of FIG. 7B can be calculated, that is, the large palm shape is larger than the individual dot area in FIG. 7A.

In the central eigenvalue, the five-point palm shape of the 7A~7B map is a large point palm shape, and the two-dimensional central eigenvalue change can be easily seen, which is roughly shifted from the five points to the large point of the 7B map. .

As for the detection situation of multi-touch, it is similar to the 7A, 7B, and will not be described below.

Next, an embodiment in which the Z-axis direction is moved will be described.

Please refer to FIGS. 8A-8C , which are schematic diagrams of the embodiment of the proximity hand gesture detection method of the present invention, the right hand flat palm shape is changed from the far distance to the close distance (the Z axis downward gesture). This is the case where the proximity control action is switched to the hovering control action.

In FIG. 8A, when the right hand 2 is at t=t1, it is a flat palm shape, that is, a shape in which the palm touch panel 10 faces the capacitive touch panel 10 with respect to the capacitive touch panel 10. When the right hand 2 is at t=tn, it is also a flat palm shape, but the distance from the capacitive touch panel 10 is closer to t=t1.

In FIG. 8B, when t=t1, the capacitive touch panel 10 detects the X-axis sensing signal and the Y-axis sensing signal generated by the right hand 2, which is the palm tip of the right hand 2 approaches the capacitive touch panel 10 The resulting inductive signal. The sensing signal is greater than the proximity threshold (T _P ) but less than the hover threshold (T _H ). Therefore, this is a proximity control action. In the present invention, the conversion operation of calculating the digital detection signal is performed.

In FIG. 8C, when t=tn, the capacitive touch panel 10 detects the X-axis sensing signal and the Y-axis sensing signal generated by the right hand 2, which is the palm tip of the right hand 2 approaches the capacitive touch panel 10 The resulting inductive signal. The sensing signal is greater than the hovering threshold (T _H ) but less than the touch threshold (T _T ), and therefore, this is a hovering control action, and in the present invention, the operation of calculating the hovering coordinates is performed.

Observing the 8B-8C figure, it can be found that the right hand 2 is flattened by the palm and gradually moved downward from the far distance from the capacitive touch panel 10 to be closer to the capacitive touch panel 10, in the process, The capacitive touch panel 10 generates changes in the X-axis sensing signal and the Y-axis sensing signal. The X-axis inductive signal and the Y-axis inductive signal of Figures 8B and 8C can be respectively calculated as the palm shape represented by them, that is, the palm shape is flat.

On the central feature value, the flat palm shape of the 8B-8C chart moves vertically downward. Therefore, in this embodiment, there is no specific change in the palm shape, but rather a change in the movement of the Z-axis.

Hereinafter, a case where the hovering control operation is switched to the touch control operation will be described with reference to a specific embodiment.

Please refer to FIG. 9A, which is a schematic diagram of the index control mode and the sensing quantity change of the object in the capacitive proximity sensing and touch detecting device and method of the present invention. Figure 9A is an application of the right hand 2 using a single finger for gesture operations. When the right hand 2 is operated with a single finger, the capacitive touch panel 10 detects a large area of the sensing signal, wherein in the portion of the point, the sensing signal is strong, and therefore, it is judged to be a single point palm. When the single point palm is applied to a screen having a plurality of pattern options, or a certain coordinate, if the single point palm is vertically downward, that is, the Z axis is moved downward, that is, When it is judged that it is a vertical downward gesture among vertical panning gestures, the action of the screen option can be performed. For example, the display of the pre-prepared pattern is performed, and the pre-prepared pattern is an enlarged display pattern or a jump-out enlarged pattern with respect to the function option pattern.

As shown in FIG. 9A, the screen option 101 represents an option for the phone, and the screen option 102 represents an option for the gas station, wherein the screen option 101 enters because the right hand 2 performs a vertical downward gesture among the vertical panning gestures. The pattern state is pre-prepared, thus magnifying the screen option 101. Thus, the pattern of the screen option 101 is larger than the screen option 102 and is in an enlarged state, making it easier for the user to click. The 9B and 9C charts show the state of the X-axis sensing signal and the Y-axis sensing signal. When the right hand 2 gradually approaches the capacitive touch panel 10, the X-axis sensing signal and the Y-axis sensing signal will change in the sensing amount. The inductive signal of Fig. 9B is larger than the hovering threshold (T _H ) but smaller than the touch threshold (T _T ), and therefore, this is a hovering control action, and in the present invention, the operation of calculating the hovering coordinates is performed. On the other hand, the sensing signal of Fig. 9C is larger than the touch threshold (T _T ). Therefore, this is a touch control operation, and in the present invention, the operation of calculating the touch coordinates is performed.

The actions of the figures 9A to 9C can be exemplified as the following embodiments, that is, when the pre-prepared pattern appears on the screen (hover control action), the user can perform a confirmation gesture (touch control action) to execute The item is executed with the option to prepare a pattern.

The setting of the proximity threshold is used for the judgment of the subsequent proximity gesture. The proximity gesture is to achieve near-field control of the non-touch panel. Therefore, in the judgment of the proximity gesture, the present invention requires the conversion and judgment of the palm shape. For a variety of different palm-shaped embodiments, please refer to Figure 10.

FIG. 10 is an embodiment of each palm shape in the capacitive proximity sensing and touch detecting device and method of the present invention. The palm-shaped embodiments listed in Fig. 10 are: single point palm shape 501, two point palm shape 502, three point palm shape 503, four point palm shape 504, five point palm shape 505, large palm shape 506, hand palm Shape 507, flat palm shape 508, oblique palm shape 509, grip palm shape 510, single finger palm shape 511, two finger palm shape 512, three finger palm shape 513, four finger palm shape 514, five finger palm shape 515. These palm shapes can be pre-stored in the memory, and the palm shape can be confirmed in a fuzzy comparison manner.

Among them, the single point palm 501 is caused by a single finger, which may be the index finger, thumb, middle finger, ring finger or little finger. The two-point palm shape 502 may be caused by the index finger and the middle finger, the thumb and the middle finger. Large palm shape 506 may be caused by condensation of five fingers, or it may be caused by condensation of two fingers, or it may be caused by condensation of three fingers and four fingers. In addition, the decision of the single point palm shape 501, the two point palm shape 502, the three point palm shape 503, the four point palm shape 504 and the five point palm shape 505 is not the only information of the large area sensing data. Generally speaking, it will contain the sensing data of the hand and wrist parts of the hand, and the sensing amount will be less than this single point to five points, or equal to or less than this single point or five points, and the operator's hand is opposite to the hand. What angle is the panel? The point is that there are distinguishable single or multiple points. In the process of the palm shape decision, the five palms can be obtained by grasping the data of the fist and the wrist as the background.

Among them, the single finger palm shape 511, the two finger palm shape 512, the three finger palm shape 513, the four finger palm shape 514, the five finger palm shape 515 and the single point palm shape 501, the two point palm shape 502, the three point palm shape 503, four The difference between the palm shape 504 and the five point palm shape 505 is that the relative relationship between the finger and the palm is different. For example, the single-finger portion detected by the single-finger palm 511 is relatively small in comparison to the portion of the fist. The single point of the single point 501 detected by the single point 501 is relatively larger than the part of the fist. The difference between the other two palm 502 and the two-finger palm 512, and the difference of the rest are the same, and will not be described again.

In addition, the decision of the single-finger palm shape 511, the two-finger palm shape 512, the three-finger palm shape 513, the four-finger palm shape 514 and the five-finger palm shape 515 is not the only information of the large-area sensing data. In general, it contains sensing data to the hand and wrist parts of the hand, and the amount of sensing is greater than the amount of sensing per finger, because the position is closer to the panel than the finger. In addition, the part of the finger, which belongs to the more parallel, can be seen as the outline of the finger, which is different from the situation of a single point or a multi-point palm. . In the process of the palm shape decision, the data of the fist and the wrist are taken together as a palm shape to be considered, and the five palm shapes can be obtained.

Once the palm shape is confirmed, the judgment of the change between the palm shape and the palm shape can be performed. The movement of the palm shape can be determined by means of the central feature value. That is, the central feature value of each palm shape, for example, the center coordinate, is calculated, and then the movement of the center feature value of the palm shape is used as a reference for object movement. The change of the palm shape depends on the change of the palm shape produced by each sampling time.

It should be noted that since the system uses three-dimensional X-axis sensing signals and Y-axis sensing signals, the center eigenvalues will change in three dimensions. However, in practice, it is also possible to obtain a two-dimensional gesture change using only two-dimensional changes. Therefore, the change in the central eigenvalue can be performed using only two-dimensional variation values, or three-dimensional variation values. Among them, the three-dimensional change value can be derived from three-dimensional gesture changes. In the following, various gesture changes that can be derived by using the present invention are respectively introduced, namely, an object two-dimensional movement gesture, an object three-dimensional movement gesture, and an object palm shape change gesture.

Therefore, the present invention summarizes three types of basic palm-shaped changes: three-dimensional movement gestures of objects, three-dimensional movement gestures of objects, and gestures of object-shaped changes of gestures. The following are described separately.

Please refer to FIG. 11A , which is an embodiment of a two-dimensional moving gesture of an object in the capacitive proximity sensing and touch detecting device and method of the present invention. The two-dimensional moving gesture of the object is fixed to the palm of the object, and the gesture of moving in two dimensions in a fixed palm shape. Therefore, it combines both the fixed palm shape and the two-dimensional movement of the central feature value to make a judgment.

The object two-dimensional moving gesture includes any combination of the following gestures: a pan gesture 601, a clockwise rotation gesture 602, a counterclockwise rotation gesture 603, a clockwise circle gesture 604, a counterclockwise circle gesture 605, and a clockwise repeat circle. Gesture 606, counterclockwise repeating circle gesture 607, delete gesture 608, clockwise chamfer gesture 609, counterclockwise chamfer gesture 610, clockwise triangle gesture 611, counterclockwise triangle gesture 612, tick gesture 613, any single circle gesture 614. Any double circle gesture 615, square gesture 616, star gesture 617, zoom gesture 618, zoom gesture 619, custom gesture 620.

Two-dimensional moving gestures can replace traditional two-dimensional touch gestures, and more, provide more gesture commands to electronic systems such as computers and mobile phones for more applications. In other words, the traditional two-dimensional touch gesture is based on the movement of a single or multiple touches to make a gesture determination. The proximity gesture of the present invention performs real gesture judgment according to the real palm shape, and has the advantage of detecting the hand motion and then outputting the gesture command without touching, which is not possible by the touch gesture.

Please refer to FIG. 11B , which is an embodiment of a three-dimensional movement gesture of an object in the capacitive proximity sensing and touch detection device and method of the present invention. The three-dimensional movement gesture of the object is fixed to the palm of the object, and the gesture of the three-dimensional movement is fixed by the fixed palm shape. Therefore, it combines both the fixed palm shape and the three-dimensional movement of the central feature value to make a judgment.

The object three-dimensional movement gesture includes any combination of the following gestures: a vertical pan gesture 701, a vertical clockwise rotation gesture 702, a vertical counterclockwise rotation gesture 703, a vertical clockwise circle gesture 704, a vertical counterclockwise circle gesture 705, and a vertical Clockwise repeating circle gesture 706, vertical counterclockwise repeat circle gesture 707, vertical right hook gesture 708, vertical left hook gesture 709, vertical clockwise corner gesture 710, vertical counterclockwise corner gesture 711, vertical clockwise A triangle gesture 712, a vertical counterclockwise triangle gesture 713, a vertical click gesture 714, a vertical double tap gesture 715, a vertical multi-click gesture 716, a vertical continuous tap gesture 717, and a vertical custom gesture 718-720.

The three-dimensional moving gesture can be applied to different products. For example, in an interactive game software, a variety of different three-dimensional gestures can be used to achieve interaction with the game software. For example, a vertical click gesture can replace a click gesture of a physical touch. For example, a vertical continuous slap gesture can be used as a gesture for simulating drumming. The specific gesture application depends on the designer's thinking about the product.

In addition, the three-dimensional moving gesture has the three-dimensional gesture judgment ability that the traditional two-dimensional touch gesture can not detect at all, and moreover, can provide more meta-gesture instructions to electronic systems such as computers and mobile phones to carry out more Applications.

Please refer to FIG. 11C , which is an embodiment of a palm-shaped change gesture of a capacitive proximity sensing and touch detecting device and method according to the present invention. The object palm change gesture is a gesture that changes the palm shape of the object, along with the movement of the center feature value of the object. Therefore, it combines the palm shape change, the two-dimensional movement of the center feature value, or the three-dimensional movement to make a judgment.

The object palm shape change gesture includes any combination of the following gestures: a two-point condensation gesture 801, a condensation two-point magnification gesture 802, a three-point condensation gesture 803, a condensation three-point magnification gesture 804, a four-point condensation gesture 805, and a condensation four points. Zoom gesture 806, five-point condensation gesture 807, condensation five-point zoom gesture 808, hand knife turn flat gesture 809, flat hand knife gesture 810, hand knife turn oblique palm gesture 811, oblique palm hand knife gesture 812, five-finger turn fist gesture 813 The fist-turning five-finger gesture 814, the two-finger turning fist gesture 815, the fist-turning two-finger gesture 816, the five-finger turn-to-big gesture 817, the big-point five-finger gesture 818, the five-finger two-finger gesture 819, and the two-finger five-finger gesture 820.

According to the gesture embodiment of the 11A-11C diagram, the present invention can integrate three different types of gestures, such as a two-dimensional movement gesture of an object, a three-dimensional movement gesture of an object, and a palm-shaped change gesture of an object, to change various application gestures. For example, the 15 palm shapes in Fig. 10 can be judged by the two-dimensional moving gesture alone, so at least 15x20=300 kinds of gesture changes. If the re-integrated object changes in the shape of the palm, then 15x20x20=6,000 variations can be integrated. Due to the complexity of the changes, you can pick the combination of gestures that you want to apply in the actual design process.

From the above description, it can be seen how the present invention uses the capacitive touch panel 10 capable of detecting multiple objects for gesture detection. In the following, several method embodiments will be described to further illustrate the execution steps of the multi-object detection method of the proximity and touch panel of the present invention.

As described above, in the self-capacitive capacitive touch panel system, the X-axis sensing signal and the Y-axis sensing signal are used to perform touch determination. In the present invention, the self-capacitive capacitive touch panel is used as the proximity and touch panel, and the self-capacitive capacitive touch panel is generated to be larger than the different valves by setting the touch threshold, the hovering threshold and the proximity threshold. The value of the X-axis sensing signal and the Y-axis sensing signal are processed separately. For the sensing signal larger than the touch threshold, it is determined that the touch control event is touched. At this time, the conventional peak wave valley method is used to judge the multi-touch coordinates. For the inductive signal larger than the hover threshold, it is judged as the hovering control event, and the traditional crest wave method can also be used to judge the multi-point hovering coordinate. For an inductive signal that is greater than the proximity threshold, it is determined to be a proximity control event, and the inductive signal is converted into a digital detection signal for further proximity gesture determination.

Next, please refer to Figures 12 and 13, which illustrate the steps of two different embodiments of the present invention, respectively. The embodiment of Fig. 12 is to convert the sensing signal larger than the proximity threshold into a digital detection signal, and then the external system determines the proximity gesture. The embodiment of Fig. 13 is used by the internal system to determine the proximity gesture.

Please refer to FIG. 12 , which is a flowchart of a method for detecting a plurality of objects in a proximity and touch panel of the present invention, which includes the following steps: Step 112: Scan the proximity and touch panel to obtain a plurality of axial sensing Signal.

Step 114: Is the proximity sensor signal greater than the touch threshold? Go to step 116. Otherwise, step 118 is performed.

Step 116: Determine a touch of the first object according to a first peak of the sensing signals greater than the touch threshold, and determine to connect the first valley value of the first peak, and then follow the first The second peak of one of the valleys is judged to be a touch of a second object, and the second peak is followed by a second valley value.

Step 118: Is the proximity sensor signal greater than the hover threshold? Go to step 120. Otherwise, step 122 is performed.

Step 120: Determine a hovering of a third object according to a third peak of the axial sensing signals greater than the hovering threshold, and determine to continue the third valley value of the third peak, and then according to the connection The fourth peak of one of the third valleys is judged to be a hovering of a fourth object, and the fourth peak is followed by a fourth valley value.

Step 122: Is the proximity sensor signal greater than the proximity threshold? Go to step 124. Otherwise, return to step 112.

Step 124: Convert the axial sensing signals greater than the proximity threshold into a digital sensing signal.

Step 126: When the axial sensing signals are greater than the proximity threshold, outputting the digital sensing signals, and when the axial sensing signals are greater than the hovering threshold, outputting the hovering coordinates, when the axes are When the sensing signal is greater than the touch threshold, the touch coordinates are output, wherein the proximity threshold is relatively smaller than the hover threshold, and the hover threshold is relatively smaller than the touch threshold.

Please refer to FIG. 13 , which is a flow chart of a method for detecting a plurality of objects in a proximity and touch panel according to the first embodiment of the present invention. The method includes the following steps: Step 112: Scan the proximity and touch panel to obtain a plurality of axial sensors. Signal.

Step 114: Is the proximity sensor signal greater than the touch threshold? Go to step 116. Otherwise, step 118 is performed.

Step 116: Determine a touch of the first object according to a first peak of the sensing signals greater than the touch threshold, and determine to connect the first valley value of the first peak, and then follow the first The second peak of one of the valleys is judged to be a touch of a second object, and the second peak is followed by a second valley value.

Step 118: Is the proximity sensor signal greater than the hover threshold? Go to step 120. Otherwise, step 122 is performed.

Step 120: Determine a hovering of a third object according to a third peak of the axial sensing signals greater than the hovering threshold, and determine to continue the third valley value of the third peak, and then according to the connection The fourth peak of one of the third valleys is judged to be a hovering of a fourth object, and the fourth peak is followed by a fourth valley value.

Step 122: Is the proximity sensor signal greater than the proximity threshold? Go to step 124. Otherwise, return to step 112.

Step 124: Convert the axial sensing signals greater than the proximity threshold into a digital sensing signal.

Step 128: When the axial sensing signals are greater than the proximity threshold, determining a proximity gesture according to the digital sensing signal and outputting a proximity gesture, when the axial sensing signals are greater than the hover threshold, outputting The hovering coordinates output the touch coordinates when the axial sensing signals are greater than the touch threshold, wherein the proximity threshold is relatively smaller than the hover threshold, and the hover threshold is relatively smaller than the Touch the threshold.

In the embodiments of FIGS. 12 and 13, the clustering of the plurality of touch sensing thresholds is stopped when the axial sensing signals are relatively larger than the touch threshold and relatively larger than the hovering threshold. The hovering coordinates in the block stop and output the digital sensing signals in the plurality of cluster blocks greater than the touch threshold. And when the axial sensing signals are relatively smaller than the touch threshold, greater than the hover threshold and relatively greater than the proximity threshold, stopping outputting the plurality of cluster blocks greater than the hover threshold Some digital sensing signals. This is one of the possible embodiments.

In terms of implementation, such a threshold priority judgment order may also be set as the proximity detection as the priority, the hovering is the second, and the touch is the last. Or, hover priority, next to the next, touch the last. So on and so forth.

In addition, in practice, you can also choose a combination of proximity, hover, and touch. For example, only proximity and touch are performed, or only hover and touch are performed. It depends on the actual application.

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention are encompassed by the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

2. . . Right hand

3. . . Left hand

10. . . Touch panel

11. . . X-axis electrode

12. . . Proximity sensing panel

13. . . Y-axis electrode

14. . . Touch detection circuit

15. . . Capacitive sensing detection circuit

16. . . Proximity detection circuit

17. . . Touch panel

18. . . Control circuit

19. . . Y-axis electrode

twenty one. . . X-axis electrode

twenty two. . . control unit

twenty four. . . Connection plate

30. . . Large area proximity sensing signal

101. . . Screen option

102. . . Screen option

501. . . Single point palm

502. . . Two palm shape

503. . . Three-point palm shape

504. . . Four point palm

505. . . Five-point palm shape

506. . . Large palm shape

507. . . Hand knife

508. . . Flat palm shape

509. . . Oblique palm

510. . . Grip

511. . . Single finger palm

512. . . Two-finger palm

513. . . Three-finger palm shape

514. . . Four-finger palm

515. . . Five-finger palm

601. . . Pan gesture

602. . . Clockwise rotation gesture

603. . . Counterclockwise rotation gesture

604. . . Clockwise round gesture

605. . . Counterclockwise circle gesture

606. . . Repeat the circle gesture clockwise

607. . . Repeat the circle gesture counterclockwise

608. . . Delete gesture

609. . . Clockwise corner gesture

610. . . Counterclockwise corner gesture

611. . . Clockwise triangle gesture

612. . . Counterclockwise triangle gesture

613. . . Tick gesture

614. . . Any single circle gesture

615. . . Any double circle gesture

616. . . Square gesture

617. . . Star gesture

618. . . Zoom gesture

619. . . Zoom out gesture

620. . . Custom gesture

701. . . Vertical pan gesture

702. . . Vertical clockwise rotation gesture

703. . . Vertical counterclockwise rotation gesture

704. . . Vertical clockwise round gesture

705. . . Vertical counterclockwise circle gesture

706. . . Vertically repeating a circular gesture

707. . . Vertically repeating the circle gesture

708. . . Vertical right tick gesture

709. . . Vertical left tick gesture

710. . . Vertical clockwise angled gesture

711. . . Vertical counterclockwise corner gesture

712. . . Vertical clockwise triangle gesture

713. . . Vertical counterclockwise triangle gesture

714. . . Vertical click gesture

715. . . Vertical double tap gesture

716. . . Vertical multi-touch gesture

717. . . Vertical continuous gesturing

718~720. . . Vertical custom gesture

801. . . Two-point condensation gesture

802. . . Condensed two-point zoom gesture

803. . . Three-point condensation gesture

804. . . Condensed three-point zoom gesture

805. . . Four point condensation gesture

806. . . Condensed four-point zoom gesture

807. . . Five-point condensation gesture

808. . . Condensed five-point zoom gesture

809. . . Hand knife turn flat gesture

810. . . Flat handle knife gesture

811. . . Hand knife turn oblique hand gesture

812. . . Oblique palm hand knife gesture

813. . . Five fingers turning fist gesture

814. . . Make a fist and turn five fingers

815. . . Two fingers turning fist gesture

816. . . Make a fist and turn two fingers

817. . . Five fingers turn to big gestures

818. . . Big point to five finger gesture

819. . . Five fingers turn two finger gesture

820. . . Two fingers to five fingers gesture

1A is a schematic diagram of a capacitive sensing detection operation of the proximity and touch detection device of the present invention;

1B is a schematic diagram of a capacitive sensing detection operation using a third-order threshold of the proximity and touch detection device of the present invention;

2A is a first embodiment of a functional block diagram of the proximity and touch detection device of the present invention;

2B is a second embodiment of a functional block diagram of the proximity and touch detection device of the present invention;

2C is a third embodiment of a functional block diagram of the proximity and touch detection device of the present invention;

2D is a schematic diagram of selecting a proximity detection mode in the second embodiment of the functional block diagram of the proximity and touch detection device of the present invention;

3A is a fourth embodiment of a functional block diagram of the proximity and touch detection device of the present invention;

FIG. 3B is a fifth embodiment of a functional block diagram of the proximity and touch detection device of the present invention;

3C is a sixth embodiment of a functional block diagram of the proximity and touch detection device of the present invention;

3D is a schematic diagram of selecting a proximity detection mode in the fifth embodiment of the functional block diagram of the proximity and touch detection device of the present invention;

4A and 4B are diagrams showing an embodiment of the right and left hand gestures of the left and right hand grips (clap gestures) and a variation of the sensing amount in the multi-object detection method of the proximity and touch panel of the present invention;

5A, 5B is a schematic diagram of a method for detecting a multi-object of a proximity and a touch panel of the present invention, wherein the left and right hands are in a clockwise, counterclockwise translation manner and a variation of the sensing amount;

6A and 6B are the embodiment of the method for detecting multiple objects in the proximity and touch panel of the present invention, and the embodiment of the left and right hand-handed palms being turned into a flat palm shape and a variation of the sensing amount;

7A and 7B are the embodiment of the method for detecting multiple objects in the proximity and touch panel of the present invention, wherein the right hand five-point palm shape is converted into a large palm shape (grabbing palm shape) and a variation of the sensing amount;

8A-8C is a schematic diagram of an embodiment and a change in sensing amount of a right hand flat palm shape from a long distance to a close distance (Z-axis downward gesture) in the multi-object detection method of the proximity and touch panel of the present invention;

9A~9C are diagrams of the control mode and the change of the sensing quantity of the object in the proximity and touch detection device and method of the present invention (by hovering and touching);

Figure 10 is an embodiment of the palm shape of the proximity and touch detection device and method of the present invention;

11A is an embodiment of a two-dimensional movement gesture of an object in the proximity and touch detection device and method of the present invention;

11B is an embodiment of a three-dimensional movement gesture of an object in the proximity and touch detection device and method of the present invention;

11C is an embodiment of a palm-shaped change gesture of an object in the proximity and touch detection device and method of the present invention;

Figure 12 is a first embodiment of a flow chart of a method for detecting multiple objects of a proximity and touch panel of the present invention; and

Figure 13 is a second embodiment of a flow chart of a method for detecting multiple objects of a proximity and touch panel of the present invention.

Claims (15)

A multi-object detection method for a proximity and touch panel is applied to a proximity sensor and a touch panel, comprising: scanning the proximity and the touch panel to obtain a plurality of axial sensing signals, wherein the axial sensing signals are greater than a proximity At the threshold, the axial sensing signals greater than the proximity threshold are converted into a plurality of digital sensing signals; when the axial sensing signals are greater than a touch threshold, the threshold is greater than the touch threshold A first peak of the sensing signals determines a touch of the first object, and determines that the first valley value of the first peak is continued, and then determines a second value according to the second peak of the first valley value. Touching the object, the second peak is followed by a second valley value; calculating a touch coordinate corresponding to the first object and the second object according to the first peak and the second peak; and when the axial sensing signals When the threshold value is greater than the proximity threshold, the digital sensing signals are output, and when the axial sensing signals are greater than the touch threshold, the touch coordinates are output, wherein the proximity threshold is relatively smaller than the touch threshold . The method of claim 1, wherein when the axial sensing signals are relatively larger than the touch threshold, the output of the digital sensing signals in the plurality of cluster blocks greater than the touch threshold is stopped. A multi-object detection method for a proximity and touch panel is applied to a proximity sensor and a touch panel, comprising: scanning the proximity and the touch panel to obtain a plurality of axial sensing signals, wherein the axial sensing signals are greater than a proximity At the threshold, the axial sensing signals greater than the proximity threshold are converted into a plurality of digital sensing signals; when the axial sensing signals are greater than a hover threshold, the greater than the hover threshold A third peak of the axial sensing signals determines a hovering of a third object, and determines a third valley value of the third peak, and then determines a fourth peak according to one of the third valley values. The fourth object is hovered, and the fourth peak is successively connected to a fourth valley value; the hovering coordinates corresponding to the third object and the fourth object are calculated according to the third peak and the fourth peak; when the axial sensing When the signal is greater than a touch threshold, determining a touch of the first object according to a first peak of the sensing signals greater than the touch threshold, and determining to connect the first valley of the first peak, According to one of the first valleys The peak value is determined as a touch of the second object, and the second peak is followed by a second valley value; the touch coordinates corresponding to the first object and the second object are calculated according to the first peak and the second peak; When the axial sensing signals are greater than the proximity threshold, the digital sensing signals are output, and when the axial sensing signals are greater than the hovering threshold, the hovering coordinates are output, when the axial sensing signals are When the touch threshold is greater than the touch threshold, the touch threshold is output, wherein the proximity threshold is relatively smaller than the hover threshold, and the hover threshold is relatively smaller than the touch threshold. The method of claim 3, wherein when the axial sensing signals are relatively greater than the touch threshold, stopping outputting the hovering coordinates in the plurality of cluster blocks greater than the touch threshold and stopping And outputting the digital sensing signals in the plurality of cluster blocks that are greater than the touch threshold. The method of claim 3, wherein when the axial sensing signals are relatively smaller than the touch threshold and greater than the hover threshold, stopping outputting the plurality of cluster blocks greater than the hover threshold The digital sensing signals. A multi-object detection method for a proximity and touch panel is applied to a proximity sensor and a touch panel, comprising: when the axial sensing signals are greater than a hovering threshold, according to the axes greater than the hovering threshold Determining a hovering of a third object to a third peak of the inductive signal, and determining to continue the third trough value of the third peak, and determining to be a fourth according to the fourth peak connecting the third trough value Hovering of the object, the fourth peak successively has a fourth valley value; calculating a hovering coordinate corresponding to the third object and the fourth object according to the third peak and the fourth peak; when the axial sensing signals are greater than When a threshold is touched, determining a touch of the first object according to a first peak of the sensing signals greater than the touch threshold, and determining to connect the first valley value of the first peak, and then And the second peak of the first valley value is determined as a touch of the second object, the second peak is followed by a second valley value; and the first object and the second peak are calculated according to the first object and the first object Touching coordinates of the second object; and when the axial sensing When the number is greater than the hovering threshold, the hovering coordinates are output, and when the axial sensing signals are greater than the touch threshold, the touch coordinates are output, wherein the hovering threshold is relatively smaller than the touch Threshold. The method of claim 6, wherein when the axial sensing signals are relatively greater than the touch threshold, stopping outputting the hovering coordinates in the cluster blocks greater than the touch threshold and stopping And outputting the digital sensing signals in the plurality of cluster blocks that are greater than the touch threshold. The method of claim 6, wherein when the axial sensing signals are relatively smaller than the touch threshold and greater than the hover threshold, stopping outputting the plurality of cluster blocks greater than the hover threshold The digital sensing signals. A multi-object detection method for a proximity and touch panel is applied to a proximity sensor and a touch panel, comprising the steps of: scanning the proximity sensor and the touch panel to obtain a plurality of axial sensing signals, when the axial sensing signals are greater than When the threshold value is close to the threshold value, the axial sensing signals greater than the proximity threshold are converted into a plurality of digital sensing signals; when the axial sensing signals are greater than a touch threshold, the threshold is greater than the touch threshold A first peak of the sensing signals determines a touch of the first object, and determines a first valley value of the first peak, and then determines a second peak according to one of the first valley values. Touching the second object, the second peak is followed by a second valley value; calculating a touch coordinate corresponding to the first object and the second object according to the first peak and the second peak; and when the axial directions When the sensing signal is greater than the proximity threshold, determining a proximity gesture according to the digital sensing signals and outputting a proximity gesture, and when the axial sensing signals are greater than the touch threshold, outputting the touch coordinates, wherein , the proximity It is relatively smaller than the touch threshold value. The method of claim 9, wherein the proximity gesture command is stopped when the axial sensing signals are relatively greater than the touch threshold. A multi-object detection method for a proximity and touch panel is applied to a proximity sensor and a touch panel, comprising the steps of: scanning the proximity sensor and the touch panel to obtain a plurality of axial sensing signals, when the axial sensing signals are greater than When the threshold value is close to the threshold value, the axial sensing signals greater than the proximity threshold are converted into a plurality of digital sensing signals; when the axial sensing signals are greater than a hovering threshold, the threshold is greater than the hovering threshold A third peak of the axial sensing signals determines a hovering of a third object, and determines a third valley value of the third peak, and then determines a fourth peak that is connected to the third valley value. For a hovering of a fourth object, the fourth peak is followed by a fourth valley value; and the hovering coordinates corresponding to the third object and the fourth object are calculated according to the third peak and the fourth peak; When the sensing signal is greater than a touch threshold, determining a touch of the first object according to a first peak of the sensing signals greater than the touch threshold, and determining to connect to the first valley of the first peak Value, and then according to the first valley One of the second peaks is determined as a touch of the second object, and the second peak is followed by a second valley value; and the touch corresponding to the first object and the second object is calculated according to the first peak and the second peak a coordinate; and when the axial sensing signals are greater than the proximity threshold, determining a proximity gesture according to the digital sensing signals and outputting a proximity gesture, when the axial sensing signals are greater than the hover threshold Outputting the hovering coordinates, when the axial sensing signals are greater than the touch threshold, outputting the touch coordinates, wherein the proximity threshold is relatively smaller than the hover threshold, and the hover threshold is relatively smaller The touch threshold. The method of claim 11, wherein when the axial sensing signals are relatively greater than the touch threshold, stopping outputting the hovering coordinates in the cluster blocks greater than the touch threshold and stopping The proximity gesture instruction is output. The method of claim 11, wherein the proximity gesture command is stopped when the axial sense signals are relatively smaller than the touch threshold and greater than the hover threshold. A proximity detecting and touch panel multi-object detecting method is applied to a proximity sensor and a touch panel, and comprises the following steps: scanning one of the sensing signals output by the proximity sensor and the touch panel, when the axial sensing signals are greater than a suspension When the threshold value is stopped, determining a hovering of a third object according to a third peak of the axial sensing signals greater than the hovering threshold value, and determining to continue the third valley value of the third peak, and then The fourth peak connected to one of the third valleys is determined as a hovering of a fourth object, and the fourth peak is followed by a fourth valley value; and the third object and the fourth peak are calculated according to the third object and the third object a hovering coordinate of the fourth object; when the axial sensing signals are greater than a touch threshold, determining a touch of the first object according to a first peak of the sensing signals greater than the touch threshold, And determining, according to the first valley value of the first peak, and determining, according to the second peak connecting the first valley value, a touch of the second object, the second peak continuing to have a second valley value; The first peak corresponds to the second peak calculation a touch coordinate of the object and the second object; and when the axial sensing signals are greater than the hovering threshold, outputting the hovering coordinates, when the axial sensing signals are greater than the touch threshold The touch coordinates are output, wherein the hover threshold is relatively smaller than the touch threshold. The method of claim 14, wherein when the axial sensing signals are relatively greater than the touch threshold, the output of the hovering coordinates in the plurality of cluster blocks greater than the touch threshold is stopped.