TWI391854B - Input device, display device with input function and electronic apparatus - Google Patents

Description

Input device, display device with input function, and electronic device

The present invention relates to an input device including a resistive film type panel capable of detecting a position where a finger or the like is in contact, a display device with an input function including the input device, and an electronic device.

In an electronic device such as a mobile phone, a car navigation device, a personal computer, a ticket vending machine, or a bank terminal, in recent years, an input device called a touch panel is disposed on the surface of a liquid crystal device or the like. The information is input while referring to the image displayed on the image display area of the liquid crystal device.

In the touch panel of this type, the structure of the resistive touch panel is such that the first electrode and the second electrode are formed on the first substrate and the second substrate, respectively, in the first substrate and the second substrate that are disposed to face each other. The substrates are opposed to each other, and when the second substrate is pressed, the contact position between the first electrode and the second electrode is detected, and the input coordinates are detected. In addition, in the case of a touch panel, there is also a capacitive touch panel in which an electrode is formed in advance on a substrate. When a finger or the like is in contact or close, the electrostatic capacitance coupled to the electrode changes, by detecting the The input coordinates are detected as changes. Here, the capacitive touch panel is different from the resistive touch panel. Since the capacitive touch panel can be input in a non-contact manner, it has advantages such as excellent durability, but on the other hand, Since it is only possible to input with a finger, there is a disadvantage that pen input cannot be performed.

Therefore, a touch panel has been proposed in which a separately formed resistive film type input device and a capacitive input device are overlapped to form a touch panel capable of detecting a plurality of types of pressed states (refer to Patent Document 1).

Patent Document 1: Japanese Patent Laid-Open No. Hei 7-334308

However, when the touch panel is superimposed on the image generating device to form a display device with an input function, the IC that drives the touch panel is also subjected to unnecessary power supply during use only as a function of the display device. Signal detection, and thus has a problem of high power consumption.

In view of the above problems, an object of the present invention is to provide an input device that suppresses reduction in power consumption, a display device with an input function including the input device, and an electronic device.

In order to solve the above problems, the input device of the present invention includes: a first substrate having a first surface and a second surface; a second substrate having a first surface and a second surface; and a first electrode formed on the first substrate The first surface and the second electrode are formed on the first surface of the second substrate. The input device includes a resistive film type input unit, and the first electrode and the second electrode of the first substrate The second electrode of the substrate is disposed to face each other; and the input portion that can be input in a non-contact manner overlaps at least a portion of the resistive film type input portion; and the resistive film type input portion detects that the energy is not The period from the input mode to the input of the input input unit is in a standby state in which the input detection is not performed, and the input to the input unit capable of inputting in a non-contact manner is detected, and the input is detected. status.

In the present invention, an input unit that can be input in a non-contact manner with respect to the resistive film type input unit is formed on the input operation side, and the resistive film type input unit has contact with an input unit that can be input in a non-contact manner or The period of approaching (that is, detecting the input to the input unit that can be input in a non-contact manner) is in a standby state in which input detection is not performed, and is in contact with an input portion that can be input in a non-contact manner. Alternatively, it is converted (i.e., an input to an input unit that can be input in a non-contact manner is detected) to be converted into an operation state in which input detection is performed. Therefore, it is possible to suppress the reduction in power consumption. In particular, in the prior art, the resistive film type input portion is substantially constantly energized in the first electrode and the second electrode, and therefore consumes a large amount of power. According to the present invention, since the resistive film type input portion is placed in a standby state, Therefore, it is possible to surely suppress the reduction in power consumption. Further, in the input unit capable of inputting in a non-contact manner, when the user next desires to perform an input operation, even if the finger or the like does not touch, the finger can be detected by bringing the finger closer to the input portion that can be input in a non-contact manner. Whether or not the input is performed by this operation is performed, so that the resistive film type input unit can be smoothly switched from the standby state to the operating state.

The input device of the present invention includes: a first substrate having a first surface and a second surface; a second substrate having a first surface and a second surface; and a first electrode formed on the first surface of the first substrate; The second electrode is formed on the first surface of the second substrate, and the input device includes a resistive film type input unit, and the second substrate is disposed on the input operation side with respect to the first substrate, and The first electrode of the first substrate and the second electrode of the second substrate are disposed to face each other, and the capacitive input portion is formed by a third electrode disposed on the second surface side of the second substrate. The resistance film type input unit is in a standby state in which input detection is not detected while detecting the input to the capacitance type input unit, and is converted into an input to the capacitance type input unit. The working state of the input detection.

In the present invention, the capacitive input portion is formed on the input operation side with respect to the resistive film type input portion, and the resistive film type input portion is in contact with or close to the capacitive input portion (that is, the electrostatic capacitance is detected). The period until the input of the type input unit is in a standby state in which the input detection is not performed, and is converted into a contact or proximity to the capacitance type input unit (that is, the input to the capacitance type input unit is detected). The working state of the input detection. Therefore, it is possible to suppress the reduction in power consumption. In particular, in the prior art, the resistive film type input portion is substantially constantly energized in the first electrode and the second electrode, and therefore consumes a large amount of power. According to the present invention, since the resistive film type input portion is placed in a standby state, Therefore, it is possible to surely suppress the reduction in power consumption. Further, in the capacitance type input unit, when the user wants to perform an input operation next time, even if the finger or the like is not in contact, the finger can be brought close to the capacitance type input unit, that is, whether or not the operation can be detected and input can be performed. The resistive film type input unit smoothly switches from the standby state to the operating state.

In the invention, it is preferable that the first electrode and the second electrode are held at a ground potential during the standby state. According to this configuration, since the first electrode and the second electrode function as a shield layer for the capacitive electrostatic input unit, the resistive film type input unit can be prevented from being external due to the standby state. Malfunction of the capacitive electrostatic input unit of the noise.

In the invention, it is preferable that the third electrode is formed on the second surface of the second substrate. When constructed in this manner, the input device can be constructed with fewer members.

In the present invention, the third electrode may be formed on a thin substrate composed of a substrate or a sheet different from the second substrate. In this case, it is preferable that the substrate is disposed such that the third electrode faces the second surface side of the second substrate. When configured in this manner, the substrate functions as a protective layer for the third electrode toward the input operation side. Further, in the present invention, the input unit that can be input in a non-contact manner is an optical input unit including a light-emitting portion and a light-receiving portion. In this case, even when the user wants to perform an input operation, even if the finger or the like does not touch, the finger can be brought close to the optical input unit, and it is possible to detect whether or not the input is performed by the operation. Therefore, the resistive film type input unit can be made. Smoothly transition from standby to working state.

The input device to which the present invention is applied can be used for a display device having an input function. In this case, the image generating device is superposed on the side opposite to the second substrate side of the first substrate.

Further, in the invention, the image generating device includes a pair of substrates and a photoelectric substance held between the pair of substrates, and the first substrate serves as one of the pair of substrates. According to this configuration, the thickness of the substrate of the image generating device or the input device can be reduced, and the thickness of the display device with the input function can be reduced.

The display device with an input function to which the present invention is applied can be used for an electronic device such as a mobile phone, a car navigator, a personal computer, a ticket vending machine, or a bank terminal.

Embodiments of the present invention will be described with reference to the drawings. In the drawings referred to in the following description, the layers and the respective members are scaled to such an extent that they can be clearly recognized on the drawing, and therefore the scaling ratios of the respective layers and the respective members are different.

[Embodiment 1] (overall)

Fig. 1(a) is an explanatory view schematically showing a configuration of a display device with an input function to which the present invention is applied, and Fig. 1(b) is a block diagram showing an electrical configuration thereof. Fig. 2 is an explanatory view schematically showing a cross-sectional configuration of a display device with an input function to which the present invention is applied. In the second drawing, the electrodes of the input device and the pixel electrodes and the counter electrodes of the liquid crystal device are shown in a simplified manner.

In the first (a) and second figures, the display device 100 with an input function of the present embodiment mainly includes a liquid crystal device 5 as an image generating device, and a display device in which the display light is emitted in an overlapping manner. The input device 1 of the side face.

The liquid crystal device 5 is provided with a liquid crystal panel 5a having an active matrix type of a transmissive type, a reflective type, or a transflective type. In the present embodiment, since the liquid crystal panel 5a is of a transmissive type, a backlight device (not shown) is disposed on the side opposite to the emission side of the display light. In the liquid crystal device 5, the first polarizing plate 81 is placed on the emission side of the display light with respect to the liquid crystal panel 5a, and the second polarizing plate 82 is placed on the opposite side.

The liquid crystal panel 5a includes a translucent element substrate 50 disposed on the emission side of the display light, and a translucent counter substrate 60 disposed opposite to the element substrate 50. The counter substrate 60 and the element substrate 50 are bonded together by a frame-shaped sealing material 71, and a liquid crystal layer 55 is held between the counter substrate 60 and the element substrate 50 in a region surrounded by the sealing material 71. Material layer).

In the element substrate 50, a plurality of pixel electrodes 58 are formed on a surface facing the counter substrate 60, and in the counter substrate 60, a common electrode 68 is formed on a surface facing the element substrate 50. Further, there is a case where the common electrode 68 is formed on the element substrate 50 side. Further, the opposite substrate 60 may be disposed on the emission side of the display light.

In the element substrate 50, a driving IC 75 is attached to a projecting region 59 extending from the edge of the counter substrate 60 by COG (Chip On Glass), and is connected to the extended region 59. There is a flexible substrate 73. Further, there is a case where a driving circuit and a switching element on the element substrate 50 are simultaneously formed on the element substrate 50.

(Detailed configuration of the input device 1)

The input device 1 of the present embodiment includes a resistive film type input unit 2 that is disposed to be stacked on the liquid crystal device 5, and a capacitive input unit 4 that is disposed on the input operation side with respect to the resistive film type input unit 2, and a capacitive type The input unit 4 is configured to overlap the resistive film type input unit 2 in plan view.

In the present embodiment, the resistive film type input unit 2 includes a translucent first substrate 10 made of a glass plate or a plastic plate, and a translucent second substrate 20 made of a glass plate or a plastic plate. In the present embodiment, a glass substrate is used for both the first substrate 10 and the second substrate 20. Here, the first substrate 10 and the second substrate 20 are bonded together by the frame-shaped sealing material 31, and the first faces 11 and 21 are opposed to each other with a predetermined gap therebetween. The second substrate 20 is disposed on the input operation side, and the first substrate 10 is disposed on the side of the liquid crystal device 5 . Therefore, the second substrate 20 faces the input operation side of the second surface 22, and the first substrate 10 faces the liquid crystal device 5 with the second surface 12 facing the liquid crystal device 5. When the input of the resistive film type input unit 2 configured as described above, the second substrate 20 must be bent. Therefore, the second substrate 20 is thinner than the first substrate 10 and has flexibility.

In the first surface 11 of the first substrate 10, a flexible substrate 33 is connected to the protruding region 13 extending from the edge of the second substrate 20. The flexible substrate 33 is for outputting a signal from the resistive film type input unit 2 to an external wiring member.

In the input device 1, the resistive film type input unit 2 is formed of a translucent first electrode 15 made of an ITO (Indium Tin Oxide) film on the first surface 11 of the first substrate 10, and is in the second The first surface 21 of the substrate 20 is formed with a translucent second electrode 25 made of an ITO film, and the inner side thereof is an air layer. On the first surface 11 of the first substrate 10, a wiring pattern (not shown) is formed from the first electrode 15 toward the overhang region 13, and the wiring pattern allows the first electrode 15 to be scratched. The signal output of the substrate 33. Further, the inter-substrate conductive material 30 is formed by mixing a bead or the like having a metal layer formed on the surface of the sealing material 31, and the inter-substrate conductive material 30 is interposed between the first surface 11 of the first substrate 10 and The second electrode 25 formed on the first surface 21 of the second substrate 20 and the wiring pattern formed on the first surface 11 of the first substrate 10 between the first surfaces 21 of the second substrate surface 20 (not shown) Show) to make a conductive connection. The signal output from the second electrode 25 to the flexible substrate 33 can be realized by the inter-substrate conductive material 30 and the wiring pattern.

In the resistive film type input unit 2 configured as described above, when the second substrate 20 is pressed, the first electrode 15 and the second electrode 25 are in contact with each other at the pressed portion. Therefore, by detecting the contact position, the detection is detected. Enter the coordinates. Therefore, in the resistive film type input unit 2, information can be input by pressing a predetermined area of the second substrate 20 with a finger, a pen, or the like.

In the input device 1, the third electrodes 41 and 42 for forming the capacitance type input unit 4 are formed on the second surface 22 of the second substrate 20 for the resistive film type input unit 2, and the third electrode 41, 42 is formed of a light-transmitting conductive film made of an ITO film. The third electrodes 41 and 42 are formed, for example, by a plurality of electrode patterns extending in a direction intersecting each other, and the second drawing is schematically shown without distinguishing the third electrodes 41 and 42. Here, the third electrodes 41 and 42 are configured by a configuration having a portion called a wide area of a pad, and a configuration in which a triangular shape of a right and left direction is alternately arranged. The third electrodes 41 and 42 extend to the end of the second surface 22 of the second substrate 20, and a wiring member (not shown) such as a flexible substrate is connected to the end portion.

In the capacitance type input unit 4 configured as described above, when a voltage is applied to the plurality of third electrodes 41 and 42 in order to impart electric charge, when the finger belonging to the conductor contacts or approaches an arbitrary portion, the third electrode 41, 42 and a finger form a capacitance, and the electrostatic capacitance detected by the third electrodes 41 and 42 is lowered. Therefore, it is possible to detect which position the finger touches or approaches. Therefore, in the capacitance type input unit 4, information can be input by a finger in a direct non-contact state. However, the electrostatic capacitance type input unit 4 cannot be input by using a pen or the like made of an insulating material.

The input device 1 configured as described above is substantially translucent as a whole, and can input information while viewing an image displayed by the liquid crystal device 5.

(action)

As shown in FIG. 1(b), the display device 100 with an input function of the present embodiment includes a resistive film type input unit control unit 84, and performs drive control and signal detection of the resistive film type input unit 2; The input unit control unit 82 performs drive control and signal detection of the capacitive electrostatic input unit 4, and the control unit 85 controls the entire display device with an input function. The control unit 85 performs normal drive control of the liquid crystal device 5, and also switches the image displayed by the liquid crystal device 5 based on the detection results of the resistive film type input unit control unit 84 and the capacitive electrostatic input unit control unit 85. Drive control. In addition, the control unit 85 also functions to output the detection results of the resistive film type input unit control unit 84 and the capacitive electrostatic input unit control unit 82 to the upper control unit 88. The operation of the control unit is executed based on an operation program stored in a memory unit such as a RAM or a ROM.

Here, the resistive film type input unit control unit 84 is in a standby state in which input detection is not performed while the value is in contact with or close to the capacitive electrostatic input unit 4. The standby state is a state in which the energization of the resistive film type input unit 2 is completely stopped, or a process of stopping the detection of which position is pressed while the resistive film type input unit 2 is energized. In the present embodiment, in the standby state, the energization of the resistive film type input unit 2 is completely stopped, and the first electrode 15 and the second electrode 25 are maintained at the ground potential.

On the other hand, the capacitive electrostatic input unit control unit 82 constantly monitors whether or not a finger touches or approaches the capacitive electrostatic input unit 4, and when a finger comes into contact with or approaches the capacitive electrostatic input unit 4, it is indicated. The intention is output to the resistive film type input unit control unit 84, and it is detected at which position a finger is in contact or approached, and the detection result is output to the control unit 85.

Then, when the capacitive input unit control unit 82 outputs a finger contact or close to the capacitive electrostatic input unit 4 (that is, an input to the capacitive electrostatic input unit is detected), the resistive film type input unit The control unit 84 converts the operation state to the input detection. In other words, the control unit 84 of the resistive film type input unit starts energization when the energization of the resistive film type input unit 2 is completely stopped, and detects which position of the resistive film type input unit 2 is touched. Scanning.

Next, the capacitive electrostatic input unit 4 instructs the cursor key displayed on the liquid crystal device 5 to scroll the screen displayed by the liquid crystal device 5, and the resist film type input unit 2 performs the pen. The input is controlled to select an input of a selection button or the like displayed in the liquid crystal device 5. Alternatively, an instruction to move the cursor or the like is performed by the operation of the resistive film type input unit 2, and the input of the determination is performed by the capacitive electrostatic type input unit 4.

(The main effect of this form)

As described above, in the present embodiment, the capacitive electrostatic input unit 4 is formed on the input operation side with respect to the resistive film type input unit 2, and the resistive film type input unit 2 is in contact with or close to the capacitive electrostatic input unit 4. The period in which the capacitive electrostatic input unit 4 detects the input is in a standby state in which the input detection is not performed, and when the capacitive electrostatic input unit 4 detects the input by the contact or proximity to the capacitive electrostatic input unit 4 It is in the working state for input detection. Therefore, it is possible to suppress the reduction in power consumption. In particular, the resistive film type input unit 2 is substantially constantly energized in the first electrode 15 and the second electrode 25 in the prior art, so that the power consumption is large, and according to the present embodiment, the resistive film type input unit 2 is provided. Since it is in a standby state, it is possible to surely suppress the reduction in power consumption. Further, since the capacitive electrostatic input unit 4 is disposed on the input operation side with respect to the resistive film type input unit 2, when the user next desires to perform an input operation, even if the finger or the like does not touch, the finger is placed close to the capacitor. In the type input unit 4, the capacitive electrostatic input unit 4 can detect whether or not the input is performed by the operation. Therefore, the resistive film type input unit 2 can be smoothly switched from the standby state to the operating state.

In the present embodiment, the first electrode 15 and the second electrode 25 are maintained at the ground potential during the standby state. Therefore, the first electrode 15 and the second electrode 25 serve as a shield for the capacitive electrostatic input unit 4 ( Shield) layer function. Therefore, while the resistive film type input unit 2 is in the standby state, it is possible to prevent the capacitive electrostatic input unit 4 from malfunctioning due to external noise.

Further, since the third electrodes 41 and 42 are formed on the second surface 22 of the second substrate 20, the input device 1 can be configured with a small number of members.

[Embodiment 2]

In the first embodiment, the third electrodes 41 and 42 are formed on the second surface 22 of the second substrate 20. In the present embodiment, the third electrodes 41 and 42 are formed as described below with reference to FIG. A thin substrate composed of a substrate or a sheet different from the second substrate 20.

Fig. 3 is an explanatory view schematically showing a cross-sectional configuration of a display device 100 with an input function according to a second embodiment of the present invention. The basic configuration of the present embodiment is the same as that of the first embodiment. Therefore, the same components are denoted by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 3, the display device 100 with an input function of the present embodiment also has a liquid crystal device 5 as an image generating device and a side of the liquid crystal device 5 that emits display light in the same manner as in the first embodiment. Input device 1 of the face. Further, the input device 1 includes a resistive film type input unit 2 that is disposed to be stacked on the liquid crystal device 5, and a capacitive input unit 4 that is disposed on the input operation side with respect to the resistive film type input unit 2, and a capacitive input type. The portion 4 is configured to overlap the resistive film type input unit 2 in plan view.

In the input device 1, the resistive film type input unit 2 is formed with the light transmissive first electrode 15 on the first surface 11 of the first substrate 10, and the light transmissive second is formed on the second surface 21 of the second substrate 20. Electrode 25.

Here, the light-transmissive thin base material 40 is disposed on the second surface 22 of the second substrate 20 for the resistive film type input unit 2, and the light-transmissive thin base material 40 is formed to constitute the electrostatic capacitance type input portion 4 The third electrodes 41, 42. In the present embodiment, the substrate 40 is disposed such that the third electrodes 41 and 42 are directed toward the second surface 22 side of the second substrate 20. Therefore, the base material 40 functions as a protective layer for the third electrodes 41 and 42 toward the input operation side. Therefore, there is an advantage that the protective layer can be formed separately without the third electrodes 41 and 42. The other configuration is the same as that of the first embodiment, and thus the description thereof is omitted.

In addition, when the base material 40 is made of the base material 40 having the function of the polarizing plate 81, the base material 40 and the first polarizing plate 81 are also used, whereby the first polarizing plate 81 can be omitted, and the input device 1 can be used. The thickness is thin. In addition, the function of the polarizing plate is not limited to the substrate 40, and any of the members disposed on the emission side of the display light with respect to the liquid crystal panel 5a may have a function as the polarizing plate 81.

In the input device 1 configured as described above and the display device 100 having the input function, the resistive film type input unit 2 is in a standby state in which the input detection is not performed while the capacitive electrostatic input unit 4 is being touched or approached, and Since the capacitive electrostatic input unit 4 is brought into contact or approached and converted into an operation state for performing input detection, the same effect as that of the first embodiment can be suppressed by suppressing reduction in power consumption.

[Embodiment 3]

In the first and second embodiments, the capacitive electrostatic input unit 4 is formed so as to overlap the input region of substantially the entire resistive film type input unit 2. However, as described with reference to FIG. 4 and the following, the resistive film type input unit 2 is described. The input region and the input region of the capacitive electrostatic input unit 4 may be configured to have different areas in a plan view.

Fig. 4 is a view schematically showing a cross-sectional configuration of a display device 100 with an input function according to a third embodiment of the present invention. The basic configuration of the present embodiment is the same as that of the first embodiment. Therefore, the same components are denoted by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 4, the display device 100 with an input function of the present embodiment mainly has a liquid crystal device 5 as an image generating device and a display device in which the display light is superimposed on the liquid crystal device 5 in the same manner as in the first embodiment. The input device 1 of the side face. Further, the input device 1 includes a resistive film type input unit 2 that is disposed to be stacked on the liquid crystal device 5, and a capacitive input unit 4 that is disposed on the input operation side with respect to the resistive film type input unit 2, and a capacitive input type. The portion 4 is configured to overlap the resistive film type input unit 2 in plan view. Here, the area of the input region (the region in which the third electrodes 41 and 42 are formed) of the capacitive electrostatic input unit 4 is the input region of the resistive film type input unit 2 (the first electrode 15 and the second electrode 25 are formed). The area of the area is 1/2 or less. The other configuration is the same as that of the first embodiment, and thus the description thereof is omitted.

[Embodiment 4]

Fig. 5 is an explanatory view showing a cross-sectional configuration of a display device with an input function according to a fourth embodiment of the present invention. In the first to third embodiments, the input operation side is in an open state in the input device 1. However, as shown in Fig. 5, the sheet 91 may be attached to the input of the casing 90 surrounding the input device 1. On the operation surface side, the sheet 91 and the input device 1 are connected by an adhesive 95. When configured in this manner, it is possible to realize a display device with an input function in which an angular portion is formed into an arbitrary shape such as an R shape by the shape of the frame 90 regardless of the planar shape of the touch panel 1. Further, since the sheet 91 functions as a protective layer, even when the third electrodes 41 and 42 are directly formed on the second surface 22 of the second substrate 20 as in the first embodiment, the third electrode 41 can be prevented. 42 damage and so on.

In addition, by forming the light shielding layer 92 on the inner surface of the sheet 91 (the side on which the resistive film type input unit 2 or the like is disposed), the capacitive electrostatic input unit 4, the resistive film type input unit 2, and the liquid crystal device 5 can be configured. Common borders.

Further, although not shown, the first polarizing plate 81 may be subsequently fixed to the sheet 91 shown in FIG. 5, and the first polarizing plate 81 may be disposed on the input operation side of the input device 1. At this time, the first polarizing plate 81 disposed between the input device 1 and the liquid crystal device 5 is omitted. In addition, when the sheet 91 is formed as the sheet 91 having the function of the polarizing plate 81, the sheet 91 and the first polarizing plate 81 are also used, whereby the thickness of the input device 1 can be made thinner by omitting the first polarizing plate 81. .

[Embodiment 5]

Fig. 7 is an explanatory view schematically showing a cross-sectional configuration of a display device with an input function according to a fifth embodiment of the present invention. In the first to fourth embodiments, the first substrate 10 of the input device 1 and the element substrate 50 of the liquid crystal device 5 are disposed separately. However, as shown in FIG. 7, the same as the input device 1 may be employed. The configuration of the substrate 10 and the element substrate 50 of the liquid crystal device 5. When configured in this manner, the thickness of the entire display device 100 with an input function which is increased in thickness by the laminated resistive film type input unit 2 and the capacitive electrostatic input unit 4 can be reduced. In the case of such a configuration, the first polarizing plate disposed between the first substrate 10 and the element substrate 50 of the liquid crystal device 5 is disposed on the front surface or the back surface of the substrate 40, although not shown.

In addition, when the base material 40 is made of the base material 40 having the function of the polarizing plate 81, the base material 40 and the first polarizing plate 81 are also used, whereby the first polarizing plate 81 can be omitted, and the input function can be attached. The thickness of the display device 100 is further reduced. The other configuration is substantially the same as that of the second embodiment, and thus the description thereof is omitted.

[Embodiment 6]

Fig. 8 is an explanatory view showing a cross-sectional configuration of a display device with an input function according to a sixth embodiment of the present invention. Embodiments 1 to 4 are input devices including a resistive film type input unit 2 that is disposed to overlap the liquid crystal device 5, and a capacitive electrostatic input unit 4 that is disposed on the input operation side with respect to the resistive film type input unit 2, On the other hand, in the eighth embodiment, the optical input unit 6 is provided instead of the capacitive electrostatic input unit 4. In the optical input unit 6 of the present embodiment, for example, the light-emitting element and the light-receiving element that emit infrared rays are arranged in a matrix on the input operation side with respect to the resistive film type input unit 2, and infrared rays that are emitted from the light-emitting element to the light-receiving element are detected. The method of being shielded by the shield so that the coordinates can be detected even in a non-contact state. However, the mode of the optical input unit is not limited thereto, and any form may be used as long as it is an optical type input unit that can detect the coordinates in a non-contact manner. In addition, as long as it is closer to the input operation side than the resistive film type input unit 2 and the contact portion that can be contacted or approached can be detected, it is not limited to the optical type input unit. The other configuration is substantially the same as that of the first embodiment, and thus the description thereof is omitted.

In the present embodiment, the resistive film type input unit 2 and the optical type input unit 6 are formed, and the resistive film type input unit 2 is contacted or approached on the optical input unit 6 side (that is, it is detected in a non-contact manner. The period until the input of the input unit is input is in a standby state in which the input detection is not performed, and the contact is made to or close to the optical input unit 6 (that is, the input that can be input in a non-contact manner is detected). The input of the part is converted into an operating state for input detection. Therefore, it is possible to suppress the reduction in power consumption. In particular, the resistive film type input unit 2 is substantially constantly energized in the first electrode 15 and the second electrode 25 in the prior art, so that the power consumption is large, and according to the present embodiment, the resistive film type input unit 2 is provided. Since it is in a standby state, it is possible to surely suppress the reduction in power consumption. Further, when the user wants to perform an input operation next time, even if the finger or the like does not touch, the optical input unit 6 can detect whether or not the optical input unit 6 is close to the optical input unit 6, so that the resistance can be made. The film type input unit 2 smoothly switches from the standby state to the operating state.

[Other composition]

In the first to sixth embodiments, the liquid crystal device 5 as the image generating device is used. However, an organic electroluminescence device or a plasma display device may be used as the image generating device.

[Example of mounting to electronic equipment]

Next, an electronic device to which the display device 100 with an input function according to the above embodiment is applied will be described. Fig. 6(a) shows the configuration of a mobile type personal computer equipped with a display device 100 having an input function. The personal computer 2000 includes a display device 100 and an main body unit 2010 with an input function as a display unit. A power switch 2001 and a keyboard 2002 are provided in the main body portion 2010. The configuration of the mobile phone provided with the display device 100 with the input function is shown in Fig. 6(b). The mobile phone 3000 includes a plurality of operation buttons 3001 and scroll buttons 3002, and a display device 100 with an input function as a display unit. By operating the scroll button 3002, the screen displayed by the display device 100 with the input function is scrolled. Fig. 6(c) shows the configuration of a personal digital assistant (PDA: Personal Digital Assistant) to which the display device 100 with an input function is applied. The personal digital assistant 4000 has a plurality of operation buttons 4001 and a power switch 4002, and a display device 100 with an input function as a display unit. When the power switch 4002 is operated, various information such as an address book and a calendar are displayed on the display device 100 with an input function.

In addition, as for the electronic device to which the display device 100 with an input function can be applied, in addition to the one shown in FIG. 6, a digital camera, a liquid crystal television, a view window type, or a direct view type camera can be cited. Electronic devices such as car navigation devices, pagers, electronic notebooks, computers, word processors, workstations, video phones, POS terminals (point of sale terminals), bank terminals, etc. Further, the display device 100 with the input function described above can be applied as the display portion of the electronic devices.

1. . . Input device

2. . . Resistive film type input unit

4. . . Electrostatic capacitance type input unit

5. . . Liquid crystal device

5a. . . LCD panel

6. . . Optical input unit

10. . . First substrate

11. . . First surface of the first substrate

12. . . The second side of the first substrate

13, 59. . . Extended area

15. . . First electrode of the first substrate

20. . . Second substrate

twenty one. . . First surface of the second substrate

twenty two. . . The second side of the second substrate

25. . . Second electrode of the second substrate

30. . . Inter-substrate conductive material

31. . . Sealing material

33, 73. . . Flexible substrate

40. . . Substrate

41, 42. . . Third electrode

43. . . Light-emitting element

44. . . Light receiving element

50. . . Component substrate

55. . . Liquid crystal layer

58. . . Pixel electrode

60. . . Counter substrate

68. . . Common electrode

71. . . Sealing material

75. . . Driver IC

81. . . First polarizer

82. . . Second polarizer

84. . . Capacitor electrostatic type input unit control unit

85. . . Control department

88. . . Upper control department

90. . . framework

91. . . Thin slice

92. . . Shading layer

95. . . Follower

100. . . Display device

2000. . . personal computer

2001. . . switch

2002. . . keyboard

2010. . . Main body of personal computer

3000. . . mobile phone

3001. . . Operation button

3002. . . Scroll button

4000. . . Personal digital assistant

4001. . . Operation button

4002. . . switch

Fig. 1(a) is an explanatory view schematically showing a configuration of a display device with an input function to which the present invention is applied, and Fig. 1(b) is a block diagram showing an electrical configuration thereof.

Fig. 2 is an explanatory view schematically showing a cross-sectional configuration of a display device with an input function according to the first embodiment of the present invention.

Fig. 3 is an explanatory view schematically showing a cross-sectional configuration of a display device with an input function according to a second embodiment of the present invention.

Fig. 4 is a view schematically showing a cross-sectional configuration of a display device with an input function according to a third embodiment of the present invention.

Fig. 5 is an explanatory view showing a cross-sectional configuration of a display device with an input function according to a fourth embodiment of the present invention.

Fig. 6 (a) to (c) are explanatory views of an electronic apparatus using the display device with an input function of the present invention.

Fig. 7 is an explanatory view schematically showing a cross-sectional configuration of a display device with an input function according to a fifth embodiment of the present invention.

Fig. 8 is an explanatory view showing a cross-sectional configuration of a display device with an input function according to a sixth embodiment of the present invention.

1. . . Input device

2. . . Resistive film type input unit

4. . . Electrostatic capacitance type input unit

5. . . Liquid crystal device

5a. . . LCD panel

10. . . First substrate

11. . . First surface of the first substrate

12. . . The second side of the first substrate

13, 59. . . Extended area

15. . . First electrode of the first substrate

20. . . Second substrate

twenty one. . . First surface of the second substrate

twenty two. . . The second side of the second substrate

25. . . Second electrode of the second substrate

30. . . Inter-substrate conductive material

31. . . Sealing material

33, 73. . . Flexible substrate

41, 42. . . Third electrode

50. . . Component substrate

55. . . Liquid crystal layer

58. . . Pixel electrode

60. . . Counter substrate

68. . . Common electrode

71. . . Sealing material

75. . . Driver IC

81. . . First polarizer

82. . . Second polarizer

100. . . Display device

Claims (10)

An input device including a display device includes: a first substrate having a first surface and a second surface; a second substrate having a first surface and a second surface; and a first electrode formed on the first substrate The second electrode is formed on the first surface of the second substrate, and the input device includes a resistive film type input unit that is configured by the first electrode and the second substrate of the first substrate. The second electrodes are disposed to face each other; and the input portion that can be input in a non-contact manner overlaps at least a portion of the resistive film type input portion; and the resistive film type input portion detects that the contact can be performed in a non-contact manner The period until the input of the input unit is input is in a standby state in which the input detection is not performed, and the input to the input unit capable of inputting in a non-contact manner is detected, and the operation state in which the input detection is performed is converted. The input device according to claim 1, wherein the input unit that can be input in a non-contact manner is an optical input unit including a light emitting unit and a light receiving unit. An input device including a display device, comprising: a first substrate having a first surface and a second surface; and a second substrate having a first surface and a second surface; a first electrode is formed on the first surface of the first substrate; and a second electrode is formed on the first surface of the second substrate. The input device is characterized in that: the input device includes a resistive film type input unit, and the second electrode The substrate is disposed on the input operation side with respect to the first substrate, and the first electrode of the first substrate and the second electrode of the second substrate are disposed to face each other; and the capacitance type input portion is disposed a third electrode on the second surface side of the second substrate; the resistive film type input unit is in a standby state in which input detection is not performed while detecting the input to the capacitance type input unit, and is borrowed The input to the electrostatic capacitance type input unit is detected and converted into an operation state for performing input detection. The input device according to claim 1 or 3, wherein the first electrode and the second electrode are held at a ground potential during the standby state. The input device according to claim 3, wherein the third electrode is formed on a substrate composed of a substrate or a sheet different from the second substrate. The input device according to claim 3, wherein an input region of the capacitance type input portion and an input region of the resistive film type input portion are different in plan view. The input device according to claim 5, wherein the substrate is configured to face the third electrode toward the second surface side of the second substrate . A display device with an input function, comprising: an input device according to any one of claims 1 to 7, wherein the display device is characterized in that an image generating device is superimposed on the first substrate and the first 2 The substrate side is the opposite side. A display device with an input function according to the eighth aspect of the invention, wherein the image generating device includes a pair of substrates and a photoelectric substance held between the pair of substrates, and the first substrate serves as the one A substrate to any one of the substrates. An electronic apparatus including a display device with an input function and an input device, comprising a display device with an input function of claim 8 or 9.