CN110989863A - Touch panel and display device - Google Patents
Touch panel and display device Download PDFInfo
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- CN110989863A CN110989863A CN201911190233.1A CN201911190233A CN110989863A CN 110989863 A CN110989863 A CN 110989863A CN 201911190233 A CN201911190233 A CN 201911190233A CN 110989863 A CN110989863 A CN 110989863A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Abstract
The invention discloses a touch panel and a display device.A light compensation structure is arranged, and the orthographic projection of the light compensation structure on a substrate at least covers the area corresponding to the gap between the adjacent electrode blocks; the difference between the energy of the light reflected by the area corresponding to the gap between the adjacent electrode blocks and the energy of the light reflected by the area corresponding to the electrode block is less than 10 percent by using the optical compensation structure. The difference in the intensity of the reflected light of the two areas is reduced so that it cannot be recognized by the human eye, thereby avoiding the problem of the electrode being visible.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a touch panel and a display device.
Background
Currently, with the increasing progress of display technology, people not only want display panels to have more functions, but also have higher and higher requirements for display screens. Nowadays, touch screens have become the mainstream of panel choices of mobile phones, tablet computers, small-sized game devices, notebooks and the like.
The touch screen generally includes: the touch panel includes an Out-cell touch panel (Out-cell touch panel) externally hung On the display panel, an On-cell touch panel (On-cell touch panel) integrated On the display panel, and an In-cell touch panel (In-cell touch panel) with a touch electrode embedded In the display panel. For the Out-cell touch screen, gaps exist among touch electrodes, so that the electrodes are visible in appearance.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a touch panel and a display device, so as to solve the problem of the prior art that electrodes are visible in appearance.
The embodiment of the invention provides a touch panel, which comprises a substrate, a touch electrode and an optical compensation structure, wherein the touch electrode is positioned on one side of the substrate; wherein:
the touch control electrode comprises a plurality of first touch control electrodes and a plurality of second touch control electrodes which are staggered and arranged in an insulating mode; the first touch electrode comprises a plurality of first electrode blocks and first connecting electrodes which are arranged at intervals along a first direction, and two adjacent first electrode blocks are electrically connected through the first connecting electrodes; the second touch electrode comprises a plurality of second electrode blocks and a bridge-spanning structure which are arranged at intervals along a second direction, two adjacent second electrode blocks are electrically connected through the bridge-spanning structure, and the second electrode blocks and the bridge-spanning structure are arranged in different layers;
the orthographic projection of the optical compensation structure on the substrate at least covers a first area, and the first area is an area corresponding to a gap between the adjacent electrode blocks;
the optical compensation structure is used for enabling the difference between the energy of the light reflected by the first area and the energy of the light reflected by the area corresponding to the electrode block to be less than 10%.
Correspondingly, the embodiment of the invention also provides a display device, which comprises a display panel and the touch panel provided by the embodiment of the invention, wherein the touch panel is positioned on the light emitting side of the display panel.
The invention has the following beneficial effects:
according to the touch panel and the display device provided by the embodiment of the invention, the optical compensation structure is arranged, and the orthographic projection of the optical compensation structure on the substrate at least covers the area corresponding to the gap between the adjacent electrode blocks; the difference between the energy of the light reflected by the area corresponding to the gap between the adjacent electrode blocks and the energy of the light reflected by the area corresponding to the electrode block is less than 10 percent by using the optical compensation structure. The difference in the intensity of the reflected light of the two areas is reduced so that it cannot be recognized by the human eye, thereby avoiding the problem of the electrode being visible.
Drawings
FIG. 1 is a schematic top view of a conventional capacitive touch screen;
FIG. 2 is a schematic cross-sectional view along AA' of the capacitive touch screen shown in FIG. 1;
FIG. 3 is a schematic diagram of the propagation path of light in the corresponding region of the electrode block;
FIG. 4 is a schematic diagram of the propagation path of light rays in the corresponding region at the gap of the electrode block;
fig. 5 is a schematic structural diagram of a touch electrode in a touch panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a touch panel according to an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating the propagation path of light on the touch panel shown in FIG. 6;
fig. 8 is a schematic structural diagram of another touch panel according to an embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating the propagation path of light on the touch panel shown in FIG. 8;
FIG. 10 is a schematic structural diagram of a shielding layer according to an embodiment of the present invention;
FIG. 11 is a schematic top view of the relative positions of the dummy electrodes and the electrode blocks in an embodiment of the present invention;
FIG. 12 is a schematic top view of the relative positions of the dummy electrodes and the electrode blocks in another embodiment of the present invention;
fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
In specific implementation, a Capacitive Touch Panel (CTP) is widely used because of its stable performance and simple operation. As shown in fig. 1, fig. 1 is a schematic top view of a conventional capacitive touch screen; the capacitive touch screen is generally formed by a plurality of touch driving electrodes Tx and a plurality of touch sensing electrodes Rx arranged in an intersecting manner, and each of the touch driving electrodes Tx and the touch sensing electrodes Rx includes a plurality of electrode blocks 11. Since the touch driving electrodes Tx and the touch sensing electrodes Rx are disposed in a crossing manner, the electrode blocks 11 of one of the two electrodes are connected by the bridge metal 12. When the capacitive touch screen is manufactured, as shown in fig. 2, fig. 2 is a schematic cross-sectional structure view of the capacitive touch screen shown in fig. 1 along AA'; a bridge metal 12, a silicon nitride layer 13, and an Indium Tin Oxide (ITO) electrode block 11 are sequentially formed on a substrate base plate 10.
When light irradiates the capacitive touch screen from the touch side, the propagation paths of the light are different at the gaps of the electrode blocks 11 and at the electrode blocks 11 due to the difference of the structures of the film layers. As shown in fig. 3, fig. 3 is a schematic view of a propagation path of light in a region corresponding to an electrode block; in the area corresponding to the electrode block 11, the light path will be reflected and refracted more, and the light energy finally entering the human eye is less. As shown in fig. 4, fig. 4 is a schematic view of the propagation path of light in the corresponding region of the gap between the electrode blocks; in the corresponding area of the gap of the electrode block 11, the light path will be reflected and refracted less, and the light energy entering the human eye is more, resulting in the difference of the reflected light intensity of the two areas, when the difference is identified, the electrode will be visible.
Accordingly, embodiments of the present invention provide a touch panel and a display device, which can reduce the energy difference between the reflected lights of two regions to avoid the occurrence of the problem of electrode visibility.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, the present invention is further described with reference to the accompanying drawings and examples. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted. The words expressing the position and direction described in the present invention are illustrated in the accompanying drawings, but may be changed as required and still be within the scope of the present invention. The drawings of the present invention are for illustrative purposes only and do not represent true scale.
It should be noted that in the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
The following describes a touch panel and a display device according to an embodiment of the present invention with reference to the accompanying drawings.
As shown in fig. 6 and 8, the touch panel provided in the embodiment of the present invention includes a substrate 01, touch electrodes (02 and 03) located on one side of the substrate 01, and an optical compensation structure 04; wherein:
as shown in fig. 5, fig. 5 is a schematic structural diagram of a touch electrode in a touch panel according to an embodiment of the present invention; the touch control electrode comprises a plurality of first touch control electrodes 02 and second touch control electrodes 03 which are staggered and arranged in an insulating mode; the first touch electrode 02 includes a plurality of first electrode blocks 021 and first connecting electrodes 022 arranged at intervals in the first direction X, and two adjacent first electrode blocks 021 are electrically connected through the first connecting electrodes 022; the second touch electrode 03 includes a plurality of second electrode blocks 031 arranged at intervals along the second direction Y and a bridging structure 032, two adjacent second electrode blocks 031 are electrically connected through the bridging structure 032, and the second electrode blocks 031 are arranged in different layers with the bridging structure 032;
as shown in fig. 6 and 8, fig. 6 is a schematic structural diagram of a touch panel according to an embodiment of the present invention; fig. 8 is a schematic structural diagram of another touch panel according to an embodiment of the present invention; the electrode blocks shown in fig. 6 and 8 are schematic cross-sectional structure views of the touch electrode shown in fig. 5 along the BB' direction; the orthographic projection of the optical compensation structure 04 on the substrate base plate 01 at least covers a first region a1, wherein the first region a1 is a region corresponding to a gap between adjacent electrode blocks (021 and 021, 031 and 031, and 021 and 031);
as shown in fig. 7 and 9, fig. 7 is a schematic diagram illustrating a propagation path of light on the touch panel shown in fig. 6; FIG. 9 is a schematic diagram illustrating the propagation path of light on the touch panel shown in FIG. 8; the optical compensation structure 04 is used to make the difference between the energy of the light reflected by the first region a1 and the energy of the light reflected by the region corresponding to the electrode block (021 or 031) less than 10%.
According to the touch panel provided by the embodiment of the invention, the optical compensation structure is arranged, and the orthographic projection of the optical compensation structure on the substrate at least covers the area corresponding to the gap between the adjacent electrode blocks; the difference between the energy of the light reflected by the area corresponding to the gap between the adjacent electrode blocks and the energy of the light reflected by the area corresponding to the electrode block is less than 10 percent by using the optical compensation structure. The difference in the intensity of the reflected light of the two areas is reduced so that it cannot be recognized by the human eye, thereby avoiding the problem of the electrode being visible.
In the touch panel provided by the embodiment of the invention, the smaller the difference between the energy of the light reflected by the first area and the energy of the light reflected by the area corresponding to the electrode block is, the less easily the human eye can recognize the difference. As long as the difference between the energy of the light reflected by the first area and the energy of the light reflected by the area corresponding to the electrode block is ensured, the problem that the electrode is visible can be avoided as long as human eyes can not recognize the difference.
Optionally, in the touch panel provided in the embodiment of the present invention, the optical compensation structure is configured to make a difference between energy of light reflected by an area corresponding to a gap between adjacent electrode blocks and energy of light reflected by an area corresponding to an electrode block smaller than 5%, so that a human eye cannot recognize the difference between the first area and the area corresponding to the electrode block.
In a specific implementation, the first touch electrode is a touch driving electrode, and the second touch electrode is a touch sensing electrode, or the first touch electrode is a touch sensing electrode, and the second touch electrode is a touch driving electrode, which is not limited herein.
In the touch panel provided in the embodiment of the present invention, the first electrode block, the second electrode block, and the first connection electrode are located in the same layer, and are made of a transparent conductive material, such as ITO, graphene, and the like, which is not limited herein.
Optionally, in the touch panel provided in the embodiment of the present invention, as shown in fig. 6 and fig. 8, the material of the bridge spanning structure 032 is a metal material, and the bridge spanning structure 032 is located between the electrode block 031 and the substrate base plate 01; a second inorganic insulating layer 05 is further disposed between the electrode blocks 031 and the bridging structure 032, and two adjacent second electrode blocks 031 are electrically connected through a via hole penetrating through the second inorganic insulating layer 05. That is, during the preparation, the bridge structure 032 is formed first, the second inorganic insulating layer 05 is formed, and the first electrode block 021, the second electrode block 031, and the first connecting electrode 022 are formed last.
Certainly, in the specific implementation, the bridge structure may also be located on the side of the electrode block away from the substrate, that is, during the preparation, the first electrode block 021, the second electrode block 031 and the first connecting electrode 022 are formed first, then the second inorganic insulating layer 05 is formed, and finally the bridge structure 032 is formed, which is not limited herein. However, when the bridge structure is located on the side of the electrode block facing away from the substrate base plate, there is a risk that the bridge structure is visible.
In the existing touch screen, because the film layer structures of the first area and the area corresponding to the electrode block are different, more reflection and refraction can occur in the light path in the area corresponding to the electrode block, and finally, the light energy entering the eyes of a person is less, so that the light energy entering the eyes of the person in the first area can be reduced in order to reduce the difference between the first area and the second area.
Therefore, optionally, in the touch panel provided in the embodiment of the invention, as shown in fig. 6, the optical compensation structure 04 includes a shielding layer 041 filling the gap between the adjacent electrode blocks (021 and 021, 031 and 031, and 021 and 031). As shown in fig. 7, in the first region, light passes through the air and sequentially irradiates on the shielding layer 041, the second electrodeless insulating layer 05 and the substrate base plate 01, and the reflected light includes: the light reflected by the interface between the shielding layer 041 and the air, the light reflected by the interface between the shielding layer 041 and the second electrodeless insulating layer 05, and the light reflected by the interface between the second electrodeless insulating layer 05 and the substrate 01; in the area corresponding to the electrode block, the light rays pass through the air and sequentially irradiate onto the electrode block 021, the second electrodeless insulating layer 05 and the substrate base plate 01, and the reflected light rays comprise: the light reflected from the interface between the electrode block 021 and the air, the light reflected from the interface between the electrode block 021 and the second electrodeless insulating layer 05, and the light reflected from the interface between the second electrodeless insulating layer 05 and the substrate 01. Therefore, the shielding layer 041 absorbs the energy of the light incident on the first region, so as to reduce the light energy entering the human eye from the first region a1, and the difference between the energy of the light reflected by the region corresponding to the gap between the adjacent electrode blocks and the energy of the light reflected by the region corresponding to the electrode block is not recognized by the human eye.
Optionally, in the touch panel provided in the embodiment of the present invention, the material of the shielding layer may be a material with a poor reflection effect, for example, the material of the shielding layer is a light absorbing material, and the light absorbing material may absorb energy of light incident on the first region. Thereby reducing the difference between the energy of the light reflected by the area corresponding to the gap between the adjacent electrode blocks and the energy of the light reflected by the area corresponding to the electrode block.
Optionally, in the touch panel provided in the embodiment of the present invention, a material of the shielding layer may be an amorphous silicon material, which is not limited herein. When the shielding layer is made of amorphous silicon material, the amorphous silicon material is a brownish black or gray black microcrystal, so that the amorphous silicon material can absorb light, the surface of the amorphous silicon material is rough, incident light is subjected to diffuse reflection on the amorphous silicon surface, and the reflection effect on the light is poor.
Or, optionally, in the touch panel provided in the embodiment of the present invention, as shown in fig. 10, fig. 10 is a schematic structural diagram of a shielding layer provided in the embodiment of the present invention; the shielding layer 041 has a plurality of protrusions 0410 on a side away from the substrate, so that incident light is diffusely reflected at the side of the shielding layer 041 away from the substrate. Because the incident light can be diffusely reflected on the surface of the shielding layer 041, the reflection effect on the light is poor, so that the energy of the light incident on the first region is absorbed, the light energy entering the human eye from the first region is reduced, and the energy of the light reflected by the region corresponding to the gap between the adjacent electrode blocks is close to the energy of the light reflected by the region corresponding to the electrode block.
In specific implementation, the more the protrusions 0410 on the side of the shielding layer 041 away from the substrate, the better the diffuse reflection effect, but it is sufficient that the energy of the light reflected by the shielding layer 041 is close to the energy of the light reflected by the electrode block in the embodiment of the present invention.
Optionally, in the touch panel provided in the embodiment of the present invention, as shown in fig. 8, the optical compensation structure 04 includes a first inorganic insulating layer 042 covering the touch electrodes (02 and 03), and a virtual electrode 043 located on a side of the first inorganic insulating layer 042 facing away from the substrate 01 and covering each first area a 1;
the virtual electrode 043 is made of the same material and has the same thickness as the electrode block (021 or 031); the orthographic projection of the virtual electrode 043 on the substrate base plate 01 covers the first area a 1. As shown in fig. 9, in the first region, light passes through the air and is sequentially irradiated onto the dummy electrode 043, the first inorganic insulating layer 042, the second inorganic insulating layer 05 and the substrate 01, and the reflected light includes: light reflected from the interface between the virtual electrode 043 and the air, light reflected from the interface between the virtual electrode 043 and the first inorganic insulating layer 042, light reflected from the interface between the first inorganic insulating layer 042 and the second inorganic insulating layer 05, and light reflected from the interface between the second inorganic insulating layer 05 and the substrate 01; in the region corresponding to the electrode block, the light rays pass through the air and are sequentially irradiated on the first inorganic insulating layer 042, the electrode block 021, the second electrodeless insulating layer 05 and the substrate base plate 01, and the reflected light rays comprise: the light reflected from the interface between the first inorganic insulating layer 042 and the air, the light reflected from the interface between the first inorganic insulating layer 042 and the electrode block 021, the light reflected from the interface between the electrode block 021 and the second electrodeless insulating layer 05, and the light reflected from the interface between the second electrodeless insulating layer 05 and the substrate 01. Therefore, the same thickness of the materials of the virtual electrode 043 and the electrode block (021 or 031) is utilized, so that the optical characteristics of the virtual electrode 043 and the electrode block (021 or 031) are the same, the energy of light reflected by the area corresponding to the gap between the adjacent electrode blocks is close to the energy of light reflected by the area corresponding to the electrode block, and the whole light reflection effect of the touch panel is uniform.
In specific implementation, in the touch panel provided in the embodiment of the present invention, as shown in fig. 11, fig. 11 is a schematic top view of the relative positions of the virtual electrodes and the electrode blocks in the embodiment of the present invention; the orthographic projection of the boundary of the virtual electrode 043 on the substrate base plate 01 and the orthographic projection of the boundary of the electrode block (021 or 031) on the substrate base plate 01 can be just overlapped, or, as shown in fig. 12, fig. 12 is a schematic top view of the relative positions of the virtual electrode and the electrode block in another embodiment of the present invention; of course, the orthographic projection of the boundary of the virtual electrode 043 on the substrate base plate 01 can surround the orthographic projection of the boundary of the electrode block (021 or 031) on the substrate base plate 01, even if the virtual electrode 043 and the electrode block (021 or 031) have certain overlap.
Optionally, in the touch panel provided in the embodiment of the present invention, the material of the first inorganic insulating layer is silicon nitride or silicon oxide, which is not limited herein.
Specifically, in the touch panel provided in the embodiment of the present invention, the thickness of the first inorganic insulating layer cannot be too thick, which may affect the light transmittance of the entire touch panel, and the thickness of the first inorganic insulating layer cannot be too thin, which may cause short circuit between the dummy electrode and the electrode block. Therefore, optionally, in the touch panel provided in the embodiment of the invention, the thickness of the first inorganic insulating layer is about 50nm to 200 nm. Therefore, the integral light transmittance of the touch panel can be ensured, and the virtual electrode and the electrode block can be prevented from being short-circuited.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, as shown in fig. 13, fig. 13 is a schematic structural diagram of the display device provided in the embodiment of the present invention; the touch panel comprises a display panel 100 and any one of the touch panels 200 provided by the embodiment of the invention and positioned on the light emitting side of the display panel 100. Since the principle of the display device for solving the problems is similar to that of the touch panel, the implementation of the display device can be referred to the implementation of the touch panel, and repeated descriptions are omitted.
In a specific implementation, in the display device provided in the embodiment of the present invention, the display panel may be any type of panel, such as a liquid crystal display panel or an OLED display panel, and is not limited herein.
Further, in the display device provided in the embodiment of the present invention, one electrode block in the touch panel may correspond to one pixel in the display panel, and certainly may also correspond to a plurality of pixels, and is specifically set according to the touch accuracy of the touch panel and the display pixels of the display panel, which is not limited herein.
In a specific implementation, the display device may be: any product or component with a touch display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator, is not limited herein.
According to the touch panel and the display device provided by the embodiment of the invention, the optical compensation structure is arranged, and the orthographic projection of the optical compensation structure on the substrate at least covers the area corresponding to the gap between the adjacent electrode blocks; the difference between the energy of the light reflected by the area corresponding to the gap between the adjacent electrode blocks and the energy of the light reflected by the area corresponding to the electrode block is less than 10 percent by using the optical compensation structure. The difference in the intensity of the reflected light of the two areas is reduced so that it cannot be recognized by the human eye, thereby avoiding the problem of the electrode being visible.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A touch panel is characterized by comprising a substrate, a touch electrode and an optical compensation structure, wherein the touch electrode is positioned on one side of the substrate; wherein:
the touch control electrode comprises a plurality of first touch control electrodes and a plurality of second touch control electrodes which are staggered and arranged in an insulating mode; the first touch electrode comprises a plurality of first electrode blocks and first connecting electrodes which are arranged at intervals along a first direction, and two adjacent first electrode blocks are electrically connected through the first connecting electrodes; the second touch electrode comprises a plurality of second electrode blocks and a bridge-spanning structure which are arranged at intervals along a second direction, two adjacent second electrode blocks are electrically connected through the bridge-spanning structure, and the second electrode blocks and the bridge-spanning structure are arranged in different layers;
the orthographic projection of the optical compensation structure on the substrate at least covers a first area, and the first area is an area corresponding to a gap between the adjacent electrode blocks;
the optical compensation structure is used for enabling the difference between the energy of the light reflected by the first area and the energy of the light reflected by the area corresponding to the electrode block to be less than 10%.
2. The touch panel of claim 1, wherein the optical compensation structure comprises a shielding layer filling gaps between adjacent electrode blocks.
3. The touch panel of claim 2, wherein the shielding layer is made of a light absorbing material.
4. The touch panel of claim 3, wherein the shielding layer is made of amorphous silicon.
5. The touch panel of claim 2, wherein the shielding layer has a plurality of protrusions on a side thereof facing away from the substrate, so that incident light is diffusely reflected on the side thereof facing away from the substrate.
6. The touch panel of claim 1, wherein the optical compensation structure comprises a first inorganic insulating layer covering the touch electrodes and dummy electrodes covering the first areas and located on a side of the first inorganic insulating layer facing away from the substrate base plate;
the virtual electrode and the electrode block are made of the same material and have the same thickness;
the orthographic projection of the virtual electrode on the substrate covers the first area.
7. The touch panel of claim 6, wherein the first inorganic insulating layer is made of silicon nitride or silicon oxide.
8. The touch panel of claim 6, wherein the first inorganic insulating layer has a thickness of about 50nm to about 200 nm.
9. The touch panel of claim 1, wherein the bridge structure is made of a metal material and is located between the electrode block and the substrate base plate;
and a second inorganic insulating layer is also arranged between the electrode blocks and the bridge spanning structure, and every two adjacent second electrode blocks are electrically connected through a via hole penetrating through the second inorganic insulating layer.
10. A display device comprising a display panel and the touch panel of any one of claims 1 to 9 on a light exit side of the display panel.
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| CN201911190233.1A CN110989863B (en) | 2019-11-28 | 2019-11-28 | Touch panel and display device |
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| CN201911190233.1A CN110989863B (en) | 2019-11-28 | 2019-11-28 | Touch panel and display device |
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| CN110989863B CN110989863B (en) | 2023-07-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022062694A1 (en) * | 2020-09-22 | 2022-03-31 | 京东方科技集团股份有限公司 | Touch display panel and electronic device |
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| CN110989863B (en) | 2023-07-25 |
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