CN105302377B - Cover sheet and apply its touch device - Google Patents

Abstract

The present invention is to be related to a kind of cover sheet and touch device.A kind of configuration of cover sheet is to cover touch-control sensing module.Cover sheet includes transparent substrate, the first matrix diagram pattern layer and the second matrix diagram pattern layer.Transparent substrate has configuration with the blind hole for covering the covering surface of touch-control sensing module and being formed on covering surface.First matrix diagram pattern layer is formed in covering surface, and around blind hole.Second matrix diagram pattern layer is filled in the region between the inner edge and the outer rim of blind hole of the first matrix diagram pattern layer.The color of the color of second matrix diagram pattern layer and the first matrix diagram pattern layer is different.So it can increase by a coloured outline border of circle in the outer rim of blind hole.By this outline border, aberration problem of the masking caused by blind hole edge offset can be reached.

Description

Protective cover and touch device using same

technical field

The invention relates to a protective cover and a touch device using the same, in particular to a protective cover covering a touch sensing module and a touch device using the same.

Background technique

With the development of technology, fingerprint identification technology is widely used in various electronic devices due to the security identification function it provides. In recent years, the fingerprint recognition technology applied to mobile devices has become the focus of public attention due to its excellent anti-theft function and personal privacy protection function, and will become an important development direction for similar electronic devices.

In the prior art, a touch device usually includes a cover for providing an operating surface touched by a user and protecting functional elements under the cover. The fingerprint identification element is arranged under the cover plate, and can be further set in a blind hole on the lower surface of the cover plate. However, after the color matrix pattern layer is printed on the lower surface of the cover, from the touch operation surface of the touch device, it will be found that the reflected light at the edge of the blind hole is affected by the gap and there is a significant color difference problem, which will Affects the visual appearance of touch devices. Therefore, how to maintain the visual appearance effect required by the user after the blind hole for accommodating the fingerprint identification element is provided on the cover plate is an urgent problem to be solved.

Contents of the invention

In view of this, it is necessary to provide a protective cover with blind holes that does not affect the appearance and a touch device using the protective cover.

A protective cover is configured to cover the touch sensing module. The protective cover includes a transparent substrate, a first matrix pattern layer and a second matrix pattern layer. The transparent substrate has a covering surface facing the touch sensing module and a blind hole formed on the covering surface. The first matrix pattern layer is formed on the cover surface and surrounds the blind hole. The second matrix pattern layer fills the area between the inner edge of the first matrix pattern layer and the outer edge of the blind hole. The color of the second matrix pattern layer is different from that of the first matrix pattern layer.

In one or more embodiments of the present invention, the shape of the inner edge of the first matrix pattern layer is the same as the shape of the outer edge of the blind hole.

In one or more embodiments of the present invention, there is a distance between the inner edge of the first matrix pattern layer and the outer edge of the blind hole. This distance is greater than 0.1 mm and less than 2 mm.

In one or more embodiments of the present invention, the protective cover further includes a third matrix pattern layer. The third matrix pattern layer fills the area inside the outer edge of the blind hole and connects with the inner edge of the second matrix pattern layer, wherein the color of the third matrix pattern layer is different from that of the second matrix pattern layer.

In one or more embodiments of the present invention, the color of the first matrix pattern layer and the color of the third matrix pattern layer are the same.

In one or more embodiments of the present invention, the third matrix pattern layer partially covers the second matrix pattern layer.

In one or more embodiments of the present invention, the above-mentioned second matrix pattern layer partially covers the first matrix pattern layer.

In one or more embodiments of the present invention, the above-mentioned second matrix pattern layer includes a plurality of sub-pattern layers stacked in sequence.

In one or more embodiments of the present invention, the above-mentioned transparent substrate further has a touch surface. The touch surface faces away from the touch sensing module and is configured for touch operation. The transparent substrate has a thickness between the touch surface and the bottom of the blind hole, and the thickness is less than 300 microns.

A touch device includes a touch sensing module, the aforementioned protective cover and a fingerprint recognition element. The covering surface of the protective cover is configured to cover the protective cover. The fingerprint identification element is arranged on the bottom of the blind hole.

The protective cover plate of the present invention and the touch device using it make the first matrix pattern layer surround the blind hole, so that the second matrix pattern layer fills the gap between the inner edge of the first matrix pattern layer and the outer edge of the blind hole. area, and make the color of the second matrix pattern layer different from the color of the first matrix pattern layer, that is, a colored outer frame (that is, the color of the second matrix pattern layer) can be added on the outer edge of the blind hole. With the help of the outer frame, the problem of chromatic aberration caused by the edge break of the blind hole can be covered.

Description of drawings

In order to make the above and other objects, features, advantages and embodiments of the present invention more clearly understood, the accompanying drawings are described as follows:

FIG. 1 is a front view of a touch device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of some elements of the touch device in FIG. 1 along line 2 - 2 .

100: touch device

110: Protective cover

111: transparent substrate

111a: Covering Surfaces

111a1: blind hole

111b: Touch surface

112: The first matrix pattern layer

113: second matrix pattern layer

113a: first sub-pattern layer

113b: second sub-pattern layer

113c: third sub-pattern layer

113': outer frame

114: The third matrix pattern layer

120: Touch sensor module

130: Fingerprint recognition component

140: display module

D: Spacing

T: Thickness

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

Please refer to Figure 1 and Figure 2. FIG. 1 is a front view of a touch device 100 according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of some components of the touch device 100 in FIG. 1 along line 2 - 2 . The detailed structures and functions of some components included in the touch device 100 and the connection relationship among the components will be introduced in detail below.

As shown in FIGS. 1 and 2 , in some implementations, the touch device 100 can be a mobile device, such as a smart phone or a tablet computer, but the present invention is not limited thereto. The touch device 100 at least includes a protective cover 110 , a touch sensing module 120 , a fingerprint recognition element 130 and a display module 140 . The protective cover 110 includes a transparent substrate 111 , a first matrix pattern layer 112 , a second matrix pattern layer 113 and a third matrix pattern layer 114 . The transparent substrate 111 has a covering surface 111a and a touch surface 111b. The cover surface 111 a and the touch surface 111 b are respectively located on opposite sides of the transparent substrate 111 . The covering surface 111 a is configured to cover the touch sensing module 120 . The touch surface 111b is configured for touch operation. That is to say, the touch object (such as a user's finger) can perform a touch operation on the touch surface 111b of the transparent substrate 111, and the touch sensing module 120 disposed on the side of the cover surface 111a can be separated by a transparent The substrate 111 senses a user's touch operation on the touch surface 111 b of the transparent substrate 111 . The display module 140 is disposed under the touch sensing module 120 . Therefore, the touch sensing module 120 and the display module 140 cooperate to perform two functions of touch and display. The display module 140 can be a liquid crystal display module (Liquid Crystal Display Module, LCM), a light emitting diode display module or an organic light emitting diode (OLED) display module, etc., which can be bonded with the touch sensor module 120 . In addition, the fingerprint recognition element 130 is disposed on the cover surface 111 a of the transparent substrate 111 and is configured to sense a user's fingerprint through the protective cover 110 .

In some embodiments, the touch-sensing module 120 is a single-layer touch-sensing electrode structure fabricated on the covering surface 111 a of the protective cover 110 . In other words, the touch sensing module 120 and the protective cover 110 jointly form a one-piece glass touch panel (One Glass Solution, OGS). In addition, the material of the touch sensing module 120 can be metal nanowires, transparent metal oxide film or metal mesh, etc., but the present invention is not limited thereto.

In some embodiments, the material of the transparent substrate 111 of the protective cover 110 is a transparent high-hardness material. For example, the material of the transparent substrate 111 can be strengthened glass, sapphire or polymethylmethacrylate (PMMA). The touch surface 111 b and the cover surface 111 a of the transparent substrate 111 are chemically or physically strengthened surfaces, thereby increasing the strength of the transparent substrate 111 . The touch surface 111b and/or the cover surface 111a of the transparent substrate 111 may also be a curved surface, so that the protective cover 110 forms a 3D (three-dimensional) structure cover.

In order to ensure the sensitivity and accuracy of fingerprint identification, the distance between the fingerprint identification element 130 and the touch surface 111b of the transparent substrate 111 should not be too large, so that the distance between the fingerprint identification element 130 and the touch object will not be too large. At the same time, in order to ensure the strength and impact resistance of the protective cover 110, so that it can protect the components under the protective cover 110, such as the touch sensor module 120, from being easily damaged by external forces, the thickness of the protective cover 110 Also can not be too thin. Therefore, in some embodiments, in order to prevent the fingerprint recognition element 130 from successfully sensing the user's fingerprint due to the thick protective cover 110, a blind hole 111a1 can be formed on the covering surface 111a of the transparent substrate 111, and then the fingerprint The identification element 130 is disposed on the bottom of the blind hole 111a1. The blind hole 111a1 reduces the thickness of the transparent substrate 111 where the fingerprint identification element 130 is disposed, so that the fingerprint identification element 130 can sense the user's fingerprint smoothly. The portion of the protective cover 110 except the blind hole 111a1 can still maintain an appropriate thickness, so as to ensure the sensitivity and accuracy of fingerprint identification and the strength of the touch device 100 (or the strength of the protective cover 110 ).

In some embodiments, the thickness of the protective cover 110 is about 500 microns, but the invention is not limited thereto. In some embodiments, the transparent substrate 111 has a thickness T between the touch surface 111b and the bottom of the blind hole 111a1 , and the thickness T is less than 300 microns, but the invention is not limited thereto.

In some implementations, the fingerprint recognition element 130 is an integrated circuit chip. It should be understood that the specific implementation of the fingerprint identification element 130 mentioned here is only an example, and is not intended to limit the present invention. Those with ordinary knowledge in the technical field of the present invention should flexibly select the fingerprint identification element 130 according to actual needs. specific implementation.

It should be noted that one or more layers of functional films (not shown), such as anti-reflection, anti-glare or anti-reflection films, can also be disposed on the touch surface 111b of the protective cover 110 . When the touch surface 111b is provided with other functional films, the thickness T of the transparent substrate 111 between the touch surface 111b and the bottom of the blind hole 111a1 needs to be correspondingly subtracted from the thickness of the functional film to avoid the fingerprint recognition element 130 A problem occurs that the user's fingerprint cannot be smoothly sensed.

Further, the first matrix pattern layer 112 of the protective cover 110 is formed on the covering surface 111a and surrounds the blind hole 111a1. The second matrix pattern layer 113 of the protective cover 110 fills the area between the inner edge of the first matrix pattern layer 112 and the outer edge of the blind hole 111a1, wherein the color of the second matrix pattern layer 113 is the same as that of the first matrix pattern layer 112 are of different colors, so as to form a distinct outer frame 113'. In some embodiments, the color of the first matrix pattern layer 112 and the color of the second matrix pattern layer 113 can be any different colors such as black, white, red, gold or blue, respectively.

Furthermore, the third matrix pattern layer 114 of the protective cover 110 fills the area inside the outer edge of the blind hole 111a1 and is in contact with the inner edge of the second matrix pattern layer 113, wherein the third matrix pattern layer 114 The color of the second matrix pattern layer 113 is different from that of the second matrix pattern layer 113, so that the inner contour of the further formed outer frame 113' is also obvious. That is to say, by comparing the color of the first matrix pattern layer 112 with the color of the third matrix pattern layer 114, the outer frame 113' formed by the second matrix pattern layer 113 can be highlighted. In some embodiments, the colors of the third matrix pattern layer 114 can be any different colors such as black, white, red, gold or blue. In some embodiments, the color of the first matrix pattern layer 112 and the third matrix pattern layer 114 are the same (for example, black).

Through the above structural configuration, the second matrix pattern layer 113 can form a clear outer frame 113' on the outer edge of the blind hole 111a1, and then can cover the problem of color difference caused by the edge break of the blind hole 111a1.

In some implementations, the first matrix pattern layer 112 , the second matrix pattern layer 113 and the third matrix pattern layer 114 of the protective cover 110 are usually formed of opaque ink, photoresist and other materials to cover the Some opaque components under 110, such as flexible circuit boards and conductive lines. It should be understood that the materials of the first matrix pattern layer 112, the second matrix pattern layer 113 and the third matrix pattern layer 114 mentioned above are only examples and are not intended to limit the present invention. Alternatively, the materials of the first matrix pattern layer 112 , the second matrix pattern layer 113 and the third matrix pattern layer 114 should be flexibly selected according to actual needs.

In some embodiments, the first matrix pattern layer 112, the second matrix pattern layer 113, and the third matrix pattern layer 114 of the protective cover 110 can all be a single-layer structure, or a multi-layer structure formed by stacking multiple layers of materials. layer structure. For example, as shown in FIG. 2 , in some implementations, taking making a white outer frame 113 ′ as an example, the color of the first matrix pattern layer 112 and the color of the third matrix pattern layer 114 can be black, and the color of the second matrix pattern layer 114 can be black. The second matrix pattern layer 113 may further include a first sub-pattern layer 113a, a second sub-pattern layer 113b and a third sub-pattern layer 113c. The first sub-pattern layer 113a, the second sub-pattern layer 113b and the third sub-pattern layer 113c are stacked in sequence. In some embodiments, the colors of the first sub-pattern layer 113a and the second sub-pattern layer 113b are white, and the color of the third sub-pattern layer 113c is black. That is, in order to make the white outer frame 113', the second matrix pattern layer 113 may include two white sub-pattern layers and one black sub-pattern layer, but the present invention is not limited thereto. In other embodiments, in order to make the white outer frame 113', the second matrix pattern layer 113 may also include three white sub-pattern layers and one black sub-pattern layer.

In some embodiments, when making the outer frame 113', the first matrix pattern layer 112, the first sub-pattern layer 113a of the second matrix pattern layer 113, the second The sub-pattern layer 113b , the third sub-pattern layer 113c and the third matrix pattern layer 114 . In some embodiments, when printing the second matrix pattern layer 113 , the second matrix pattern layer 113 may be partially printed on the first matrix pattern layer 112 . In this way, the problem of light leakage at the connection between the first matrix pattern layer 112 and the second matrix pattern layer 113 can be prevented. In some embodiments, when printing the third matrix pattern layer 114 , the third matrix pattern layer 114 may be partially printed on the second matrix pattern layer 113 . Thereby, the problem of light leakage at the connection between the second matrix pattern layer 113 and the third matrix pattern layer 114 can also be prevented. It can be seen that by seamlessly connecting the first matrix pattern layer 112 and the second matrix pattern layer 113 and between the second matrix pattern layer 113 and the third matrix pattern layer 114 , the problem of light leakage can be effectively prevented.

In some embodiments, the shape of the inner edge of the first matrix pattern layer 112 is the same as the shape of the outer edge of the blind hole 111a1. That is to say, the distance D between the shape of the inner edge of the first matrix pattern layer 112 and the outer edge of the blind hole 111a1 is a constant value. In some embodiments, the distance D between the shape of the inner edge of the first matrix pattern layer 112 and the outer edge of the blind hole 111a1 is greater than 0.1 millimeters and less than 2 millimeters, so that the outer surface viewed by the user through the transparent substrate 111 Frame 113' has a better visual effect.

In some embodiments, the shape of the outer frame 113' can be a hollow ellipse (as shown in FIG. 1 ), a circle, a rectangle or a rhombus, but the present invention is not limited thereto.

From the above detailed description of the specific embodiments of the present invention, it can be clearly seen that the protective cover of the present invention and the touch device using it make the first matrix pattern layer surround the blind holes, so that the second matrix pattern layer fills the blind holes. Fill the area between the inner edge of the first matrix pattern layer and the outer edge of the blind hole, and make the color of the second matrix pattern layer different from the color of the first matrix pattern layer, so that the outer edge of the blind hole can be increased A colored frame (that is, the color of the second matrix pattern layer). With the help of the outer frame, the problem of chromatic aberration caused by the edge break of the blind hole can be covered.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (7)

1. a kind of cover sheet, configure to cover a touch-control sensing module, which is characterized in that the cover sheet includes：

One transparent substrate has configuration to cover a covering surface of the touch-control sensing module and be formed on the covering surface A blind hole；

One first matrix diagram pattern layer is formed in the covering surface, and around the blind hole；

One second matrix diagram pattern layer is filled in the region between the inner edge and the outer rim of the blind hole of the first matrix diagram pattern layer, In the second matrix diagram pattern layer color it is different with the color of the first matrix diagram pattern layer, and the second matrix pattern layer segment It is covered in the first matrix diagram pattern layer；And

One third matrix diagram pattern layer, is filled in the region within the outer rim of the blind hole, and with the inner edge of the second matrix diagram pattern layer Connect, wherein the color of the third matrix diagram pattern layer is different with the color of the second matrix diagram pattern layer, and the third matrix pattern It is covered in layer segment in the second matrix diagram pattern layer.

2. cover sheet as described in claim 1, which is characterized in that the shape of the inner edge of the first matrix diagram pattern layer is blind with this The shape of the outer rim in hole is identical.

3. cover sheet as claimed in claim 2, which is characterized in that the inner edge of the first matrix diagram pattern layer is outer with the blind hole It is separated by a spacing between edge, which is more than 0.1 millimeter and is less than 2 millimeters.

4. cover sheet as described in claim 1, which is characterized in that the color of the first matrix diagram pattern layer and the third matrix The color of pattern layer is identical.

5. cover sheet as described in claim 1, which is characterized in that the second matrix diagram pattern layer includes the multiple of sequentially storehouse Subgraph pattern layer.

6. cover sheet as described in claim 1, which is characterized in that the transparent substrate also has a touch-control surface, the touch-control Surface is configured back to the touch-control sensing module for touch control operation, and the transparent substrate is in the bottom of the touch-control surface and the blind hole There is a thickness, and the thickness is less than 300 microns between portion.

7. a kind of touch device, which is characterized in that include：

Just like cover sheet according to any one of claims 1 to 6；

One touch-control sensing module, wherein the covering surface configuration of the cover sheet is to cover the cover sheet；And

One identification of fingerprint element, is set on the bottom of the blind hole.