CN112817477A - Touch substrate and display device - Google Patents
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- CN112817477A CN112817477A CN202110080065.1A CN202110080065A CN112817477A CN 112817477 A CN112817477 A CN 112817477A CN 202110080065 A CN202110080065 A CN 202110080065A CN 112817477 A CN112817477 A CN 112817477A
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- 239000000758 substrate Substances 0.000 title claims abstract description 62
- 239000000463 material Substances 0.000 claims description 15
- 230000001066 destructive effect Effects 0.000 claims description 11
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 5
- 238000002310 reflectometry Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000000151 deposition Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 229910004205 SiNX Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
-
- 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
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- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
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- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention provides a touch substrate and a display device, and relates to the technical field of display, wherein the touch substrate comprises: a substrate; a mesh electrode disposed on the substrate; the light adjusting layer is arranged on one side of the reticular electrode away from the substrate; the planarization layer is arranged on one side, far away from the substrate, of the dimming layer; wherein the electrode line of the mesh electrode includes a first portion covered by the dimming layer and a second portion in contact with the planarization layer; the dimming layer is configured to: so that the light reflected by the first part and the light reflected by the second part destructively interfere in the light reflected by the mesh electrode in the direction away from the substrate. The invention can improve the optical visibility of the mesh electrode and can also improve the Moire effect caused by reflected light.
Description
Technical Field
The invention relates to the technical field of display, in particular to a touch substrate and a display device.
Background
At present, in a mainstream touch substrate, a mesh-shaped touch electrode is adopted, and the mesh-shaped touch electrode can be prepared from non-light-transmitting materials such as metal and the like, so that the resistance is low, and the power consumption can be reduced.
However, the mesh electrode pair made of metal has a large reflectivity and a large risk of optical visibility, and meanwhile, light reflected by the mesh electrode may be overlapped with light emitted from the display panel to form a moire effect, which results in a serious image display effect.
Disclosure of Invention
The present invention is directed to at least one of the technical problems in the prior art, and provides a touch substrate and a display device.
In order to achieve the above object, the present invention provides a touch substrate, including:
a substrate;
a mesh electrode disposed on the substrate;
the light adjusting layer is arranged on one side of the reticular electrode far away from the substrate;
a planarization layer disposed on a side of the light modulation layer away from the substrate;
wherein the electrode line of the mesh electrode includes a first portion covered by the dimming layer and a second portion in contact with the planarization layer;
the dimming layer is configured to: causing destructive interference between light reflected by the first portion and light reflected by the second portion of light reflected by the mesh electrode in a direction away from the substrate.
Optionally, all electrode wires of the mesh electrode comprise the first portion and the second portion.
Optionally, a part of the electrode wires of the mesh electrode include the first portion and the second portion, and another part of the electrode wires include the first portion or the second portion.
Optionally, the mesh electrode comprises a plurality of electrode wires defining a plurality of mesh holes, and the dimming layer covers a part of the mesh holes.
Optionally, a ratio of a width of a portion of the electrode line covered by the dimming layer to a width of the electrode line is in a range of 1: 1.5-1: 3, the ratio of the total area of the meshes covered by the dimming layer to the total area of all the meshes is 1: 1.5-1: 3, or less.
Optionally, the dimming layer comprises a plurality of dimming parts distributed in an array, and the distance between two adjacent dimming parts along the row direction or the column direction is larger than or equal to the width of the mesh.
Optionally, the mesh electrode includes a plurality of electrode lines defining a plurality of meshes, the plurality of meshes are divided into a plurality of mesh groups, each mesh group includes a plurality of meshes, each mesh group corresponds to one pixel unit in the display panel, and the plurality of meshes in the same mesh group respectively correspond to sub-pixels of different colors in the pixel unit;
the dimming layer covers a portion of the plurality of mesh groups.
Optionally, the plurality of electrode lines includes a first electrode line surrounding the mesh group, and a ratio of a width of a portion of the first electrode line covered by the dimming layer to a width of the first electrode line is in a range of 1: 1.5-1: 3, the ratio of the area of the mesh group covered by the dimming layer among the plurality of mesh groups to the total area of all the mesh groups is in the range of 1: 1.5-1: 3, or less.
Optionally, the dimming layer includes a plurality of dimming parts distributed in an array, and two adjacent dimming parts along a row direction or a column direction have a spacing area therebetween, and an orthogonal projection of the spacing area on the substrate covers an orthogonal projection of at least one pixel unit on the substrate.
Optionally, the material of the dimming layer comprises silicon nitride, and the thickness of the dimming layer is set between 0.45um and 0.66 um.
Optionally, the material of the dimming layer comprises silicon oxynitride, and the thickness of the dimming layer is set between 1.08um and 1.43 um.
The present invention also provides a display device, comprising: display panel and above-mentioned touch-control base plate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1a is a schematic structural diagram of a mesh electrode according to an embodiment of the present invention;
fig. 1b is a schematic structural diagram of a touch substrate according to an embodiment of the invention;
FIG. 2 is an enlarged view of the position B in FIG. 1B;
FIGS. 3 and 4 are longitudinal sectional views of FIG. 1b taken along section line AA';
fig. 5 is a second schematic structural diagram of a touch substrate according to an embodiment of the invention;
FIG. 6 is an enlarged view of position C of FIG. 5;
fig. 7 is a schematic diagram of reflectivity curves of the mesh electrode before and after the light modulation layer is disposed according to the embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Unless otherwise defined, technical or scientific terms used in the embodiments of the present invention should have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Likewise, the word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
An embodiment of the invention provides a touch substrate, where fig. 1a is a schematic structural view of a mesh electrode provided in an embodiment of the invention, fig. 1B is one of the schematic structural views of the touch substrate provided in the embodiment of the invention, fig. 2 is an enlarged schematic view of a position B in fig. 1B, fig. 3 and fig. 4 are longitudinal sectional views along a sectional line AA' of fig. 1B, and the touch substrate, as shown in fig. 1a to fig. 4, includes: the light-adjusting device comprises a substrate 1, a mesh electrode 2 arranged on the substrate 1, a light-adjusting layer 3 arranged on one side of the mesh electrode 2 far away from the substrate 1, and a flattening layer 4 arranged on one side of the light-adjusting layer 3 far away from the substrate 1. Wherein the electrode line of the mesh electrode 2 includes a first portion 21 covered by the dimming layer 3 and a second portion 22 in contact with the planarization layer 4. The light modulation layer 3 is configured to: so that, of the light rays reflected by the mesh electrode 2 in a direction away from the substrate 1, the light rays reflected by the first portion 21 destructively interfere with the light rays reflected by the second portion 22.
Specifically, the direction of the mesh electrode 2 away from the substrate 1 may refer to the direction from the mesh electrode 2 to the planarization layer 4 in fig. 3 and 4, that is, the light emitting direction of the touch substrate. The material of the mesh electrode 2 may comprise a metal, so that the mesh electrode 2 has good electrical conductivity. The first portion 21 of the mesh electrode 2 is covered by the dimming layer 3, and the dimming layer 3 is covered by the planarization layer 4. the second portion 22 of the mesh electrode 2 is in direct contact with the planarization layer 4. In the embodiment of the present invention, the light adjusting layer 3 and the planarization layer 4 may have different refractive indexes, so that when light is irradiated onto the mesh electrode 2 from top to bottom, the mesh electrode 2 reflects the light (as shown in fig. 3 and 4, the reflected light exits from bottom to top), and the reflected light includes the light reflected by the first portion 21 and the light reflected by the second portion 22. As for the light reflected by the first portion 21, since its propagation path passes through the light modulation layer 3 and the planarization layer 4, its optical path length is X; the light ray reflected by the second portion 22 has an optical path length Y since it passes through only the planarization layer 4. The optical path length X is different from the optical path length Y, so that an optical path length difference exists between the light reflected by the first portion 21 and the light reflected by the second portion 22, and the optical path length difference between the light reflected by the first portion 21 and the light reflected by the second portion 22 is equal to half of the wavelength of the light by adjusting the thickness of the light modulation layer 3, so that destructive interference occurs between the light reflected by the first portion 21 and the light reflected by the second portion 22, and the reflectivity of the mesh electrode 2 is reduced.
Therefore, with the touch substrate in the embodiment of the present invention, the light modulation layer 3 is disposed on the mesh electrode 2, so that the reflectivity of the mesh electrode 2 can be reduced, and the optical visibility of the mesh electrode 2 can be further improved, and meanwhile, the reflectivity of the mesh electrode 2 is reduced, so that the intensity of the light reflected by the mesh electrode 2 is reduced, and the moire effect caused by the superposition of the reflected light and the emergent light of the display panel can be further improved.
In some embodiments, the material of the light adjusting layer 3 includes silicon nitride (SiNx), the refractive index n1 of the silicon nitride material is 1.903, the refractive index n2 of the planarization layer 4 is 1.658, and for example, visible light with wavelength 550nm that is most sensitive to human eyes, in order to cause destructive interference between the light reflected by the first portion 21 and the light reflected by the second portion 22, the formula S (n1-n2) 2d 550 (1/2) needs to be satisfied, where S is the optical path difference between the light reflected by the first portion 21 and the light reflected by the second portion 22, and d is the thickness of the light adjusting layer 3, and d is 562.9nm, which is calculated to be equal to about 0.563 um. In practical processes, destructive interference can be achieved to a greater extent by setting the thickness of the light modulation layer 3 between 0.45um and 0.66um, for example, 0.5um to 0.6um, thereby reducing the reflectivity of the mesh electrode 2.
In the embodiment of the present invention, the step of preparing the light modulation layer 3 may include depositing a silicon nitride material layer on the mesh electrode, and forming a predetermined pattern on the silicon nitride material layer by using a patterning process such as exposure and development, so as to obtain the light modulation layer 3, where the pattern of the light modulation layer 3 will be described below, and will not be described herein again.
In other embodiments, the material of the light adjusting layer 3 includes silicon oxynitride (SiNO) material, the refractive index n3 of the silicon oxynitride material is 1.770, the refractive index n2 of the planarization layer 4 is 1.658, and for example, visible light with wavelength 550nm that is most sensitive to human eyes, in order to cause destructive interference between light reflected by the first portion 21 and light reflected by the second portion 22, it is necessary to satisfy the formula S (n3-n2) × 2d (550 × 1/2), where S is the optical path difference between light reflected by the first portion 21 and light reflected by the second portion 22, and d is the thickness of the light adjusting layer 3, and d is 1231.3nm, which is calculated and is equal to about 1.231 um. In a practical process, the thickness of the light modulation layer 3 is set between 1.08um and 1.43um, for example, 1.2um to 1.3um, so that destructive interference can be achieved to a large extent, thereby reducing the reflectivity of the mesh electrode 2.
In an embodiment of the present invention, the step of preparing the light modulation layer 3 may include depositing a silicon oxynitride material layer on the mesh electrode, and forming a predetermined pattern on the silicon oxynitride material layer by using a patterning process such as exposure and development, so as to obtain the light modulation layer 3.
The following describes a specific structure of a touch substrate according to an embodiment of the invention with reference to fig. 1a to 6. As shown in fig. 1a, the mesh electrode 2 includes a plurality of electrode lines including an electrode line extending in the left-right direction in fig. 1a and an electrode line extending in the vertical direction in fig. 1b, and the different electrode lines are spaced apart from each other.
As shown in fig. 1b, in some embodiments, all the electrode lines of the mesh-shaped electrode 2 include a first portion 21 (i.e., the portion of the electrode lines in fig. 1b covered by the dimming layer 3) and a second portion 22 (i.e., the portion of the electrode lines in fig. 1b exposed by the dimming layer 3), so that the light reflected by each electrode line includes a portion with an optical path X and a portion with an optical path Y, that is, the light reflected by each electrode line can destructively interfere with each other, thereby reducing the reflectivity of all the electrode lines.
Fig. 5 is a second schematic structural view of a touch substrate according to another embodiment of the invention, as shown in fig. 5, in another embodiment, a part of electrode lines of the mesh electrode 2 includes a first portion 21 and a second portion 22, and another part of the electrode lines includes the first portion 21 or the second portion 22. It should be noted that, in fig. 5, the position D should be the same as the position C, and both are covered by the dimming layer 3, and the dimming layer 3 at the position D is hidden for clarity. The mesh-shaped electrode 2 includes a first electrode line 2a, a second electrode line 2b, and a third electrode line 2c, and the first electrode line 2a includes a first portion 21 (i.e., a portion of the electrode line covered by the dimming layer 3 in fig. 5) and a second portion 22 (i.e., a portion of the electrode line exposed by the dimming layer 3 in fig. 5). The second electrode lines 2b have only the second portions 22, and the third electrode lines 2c have only the first portions 21. Thus, the pattern of the light modulation layer 3 can be made as large as possible, thereby reducing the accuracy requirement for a mask plate for preparing the light modulation layer 3.
First, referring to fig. 1a and 1b, in some embodiments, the mesh electrode 2 includes a plurality of electrode wires defining a plurality of meshes, and the dimming layer 3 may be disposed on only the plurality of electrode wires of the mesh electrode 2 or may cover a part of the plurality of meshes. When the dimming layer 3 is covered on a part of meshes in the plurality of meshes, the pattern size of the dimming layer 3 can be made larger, so that the precision requirement on a mask plate for preparing the dimming layer 3 is reduced, and the preparation process is simplified.
In some embodiments, the ratio of the width of the portion of the electrode line covered by the dimming layer 3 to the width of the electrode line is in the range of 1: 1.5-1: 3, e.g., 1: 2, the ratio of the total area of the meshes covered by the dimming layer 3 to the total area of all the meshes is 1: 1.5-1: 3, for example 1: 2.
in an embodiment of the present invention, each mesh may correspond to one sub-pixel in the display panel, the area of the mesh may be close to the area of the sub-pixel corresponding thereto, and the areas of at least two meshes are different. The orthographic projection of each mesh on the display panel covers the light emitting area of the corresponding sub-pixel in the display panel, so that light emitted by the light emitting area of the sub-pixel can be emitted out of the mesh, and the display function is realized. For a smaller size mesh, the dimming layer 3 may cover the whole mesh, whereas for a larger size mesh, the dimming layer 3 may cover half of the larger size mesh. For the mesh covered by the dimming layer 3, on any electrode line of the mesh, the ratio of the width of the portion of the electrode line covered by the dimming layer 3 to the width of the electrode line may be set to 1: 2, so that the width of the portion covered by the dimming layer 3 is the same as the width of the portion not covered by the dimming layer 3, thus half of the light reflected by the electrode lines has the first optical path X, and the other half of the light has the second optical path Y, so that the light reflected by the electrode lines undergoes maximum destructive interference, thereby further reducing the reflectivity of the mesh electrode.
In some embodiments, the dimming layer 3 includes a plurality of dimming parts 31 distributed in an array, and a distance between two dimming parts 31 adjacent to each other in a row direction or a column direction is greater than or equal to a width of a mesh.
In the embodiment of the present invention, the mesh openings may be rectangular, and the width of the mesh openings is the size of the mesh openings in the left-right direction in fig. 1 a. Specifically, for two light modulation sections 31 adjacent to each other in the row direction, the pitch between the two light modulation sections 31 is greater than or equal to the width of the mesh; for two light modulation sections 31 adjacent to each other in the column direction, the interval between the two light modulation sections 31 is greater than or equal to the length of the mesh of the smaller size (or half of the length of the mesh of the larger size).
Fig. 6 is an enlarged schematic view of a position C in fig. 5, and another structure of the touch substrate in the embodiment of the invention is explained below with reference to fig. 1a, fig. 5 and fig. 6.
In some embodiments, the mesh electrode 2 includes a plurality of electrode lines defining a plurality of mesh holes, the plurality of mesh holes are divided into a plurality of mesh hole groups, each mesh hole group includes a plurality of mesh holes, each mesh hole group corresponds to one pixel unit in the display panel, and the plurality of mesh holes in the same mesh hole group respectively correspond to different color sub-pixels in the pixel unit. For example, each mesh group includes three meshes, which correspond to the red, green, and blue subpixels in the display panel, respectively. Compared with the foregoing embodiments, the dimming layer 3 in the present embodiment has a larger pattern size to cover a part of the mesh group, so that the requirement for the precision of the mask plate can be further reduced.
In some embodiments, the plurality of electrode lines includes a first electrode line surrounding the mesh group, and a ratio of a width of a portion of the first electrode line covered by the dimming layer 3 to a width of the first electrode line is in a range of 1: 1.5-1: 3, for example 1: 2, the ratio of the area of the mesh group covered by the light control layer 3 among the plurality of mesh groups to the total area of the plurality of mesh groups is in the range of 1: 1.5-1: 3, for example 1: 2.
in the embodiment of the present invention, the plurality of mesh groups include mesh groups covered by the dimming layer 3 and mesh groups not covered by the dimming layer 3. For the mesh group covered by the dimming layer 3, the dimming layer 3 may cover all the meshes in the mesh group, and the width of the portion of the first electrode line around the mesh covered by the dimming layer 3 may be the same as the width of the portion not covered by the dimming layer 3, so that half of the light reflected by the first electrode line has the first optical path X, and the other half of the light has the second optical path Y, so that the light reflected by the electrode line undergoes destructive interference to the greatest extent, thereby reducing the reflectivity of the mesh electrode.
In some embodiments, the light modulation layer 3 includes a plurality of light modulation parts 31 distributed in an array, and two light modulation parts 31 adjacent to each other in the row direction or the column direction have a spacing area therebetween, and an orthogonal projection of the spacing area on the substrate 1 covers an orthogonal projection of at least one pixel unit on the substrate 1. For example, as shown in fig. 5, one mesh group is spaced between every two adjacent light modulation parts 31, so that one mesh group is covered by the light modulation layer 3 every other mesh group on the touch substrate.
Fig. 7 is a schematic diagram of reflectivity curves of the mesh electrode before the light modulation layer is disposed and after the light modulation layer is disposed according to the embodiment of the present invention, where the abscissa is the wavelength and the ordinate is the reflectivity. As shown in fig. 7, after the light modulation layer is provided, the reflectivity of the mesh electrode is significantly reduced, thereby effectively improving the visibility problem and moire phenomenon of the mesh electrode 2.
In summary, compared with the conventional touch substrate, the touch substrate in the embodiment of the invention is provided with only the light modulation layer 3, and the mesh electrode 2 and the planarization layer 4 for performing a planarization protection function are used to realize destructive interference of reflected light, so that the touch substrate has a simple structure and is easy to prepare.
An embodiment of the present invention further provides a display device, where the display device may be: any product or component with a display function, such as electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. Wherein, include: display panel and above-mentioned touch-control base plate.
By adopting the display device in the embodiment of the invention, the light modulation layer is arranged on the mesh electrode of the touch substrate, so that destructive interference can be generated between the light rays reflected by the mesh electrode, the intensity of the light rays reflected by the mesh electrode is reduced, the optical visibility of the mesh electrode is further improved, and the moire effect caused by the reflected light rays of the mesh electrode is improved.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (12)
1. A touch substrate, comprising:
a substrate;
a mesh electrode disposed on the substrate;
the light adjusting layer is arranged on one side of the reticular electrode far away from the substrate;
a planarization layer disposed on a side of the light modulation layer away from the substrate;
wherein at least one electrode line of the mesh electrode comprises a first portion covered by the dimming layer and a second portion in contact with the planarization layer;
the dimming layer is configured to: causing destructive interference between light reflected by the first portion and light reflected by the second portion of light reflected by the mesh electrode in a direction away from the substrate.
2. The touch substrate of claim 1, wherein all electrode lines of the mesh electrode comprise the first portion and the second portion.
3. The touch substrate of claim 1, wherein a portion of the electrode lines of the mesh electrode comprise the first portion and the second portion, and another portion of the electrode lines comprise the first portion or the second portion.
4. The touch substrate of claim 1, wherein the mesh electrode comprises a plurality of electrode lines defining a plurality of mesh openings, and the dimming layer covers a portion of the mesh openings.
5. The touch substrate of claim 4, wherein a ratio of a width of a portion of the electrode line covered by the dimming layer to a width of the electrode line is in a range of 1: 1.5-1: 3, the ratio of the total area of the meshes covered by the dimming layer to the total area of all the meshes is 1: 1.5-1: 3, or less.
6. The touch substrate according to claim 4, wherein the light modulation layer comprises a plurality of light modulation parts distributed in an array, and a distance between two adjacent light modulation parts along a row direction or a column direction is greater than or equal to a width of the mesh.
7. The touch substrate of claim 1, wherein the mesh electrode comprises a plurality of electrode wires defining a plurality of mesh openings, the plurality of mesh openings are divided into a plurality of mesh opening groups, each mesh opening group comprises a plurality of mesh openings, each mesh opening group corresponds to one pixel unit in the display panel, and the plurality of mesh openings in one mesh opening group respectively correspond to different color sub-pixels in the pixel unit;
the dimming layer covers a portion of the plurality of mesh groups.
8. The touch substrate according to claim 7, wherein the plurality of electrode lines includes a first electrode line surrounding the mesh group, and a ratio of a width of a portion of the first electrode line covered by the dimming layer to a width of the first electrode line is in a range of 1: 1.5-1: 3, the ratio of the area of the mesh group covered by the dimming layer among the plurality of mesh groups to the total area of all the mesh groups is in the range of 1: 1.5-1: 3, or less.
9. The touch substrate according to claim 7, wherein the light modulation layer comprises a plurality of light modulation parts distributed in an array, two adjacent light modulation parts along a row direction or a column direction have a spacing area therebetween, and an orthogonal projection of the spacing area on the substrate covers an orthogonal projection of at least one pixel unit on the substrate.
10. The touch substrate of any one of claims 1-9, wherein the material of the light modulation layer comprises silicon nitride, and the thickness of the light modulation layer is set between 0.45um and 0.66 um.
11. The touch substrate of any one of claims 1-9, wherein the material of the light modulation layer comprises silicon oxynitride, and the thickness of the light modulation layer is set between 1.08um and 1.43 um.
12. A display device, comprising: a display panel and a touch substrate according to any one of claims 1 to 11.
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| CN106201071A (en) * | 2016-06-29 | 2016-12-07 | 京东方科技集团股份有限公司 | Touch base plate and preparation method thereof, touch control display apparatus |
| CN108227289A (en) * | 2018-01-31 | 2018-06-29 | 京东方科技集团股份有限公司 | A kind of liquid crystal display panel and preparation method thereof, liquid crystal display device |
| CN108762542A (en) * | 2018-03-30 | 2018-11-06 | 上海天马微电子有限公司 | Display panel and display device |
| US20200212347A1 (en) * | 2018-12-27 | 2020-07-02 | Lg Display Co., Ltd. | Display device |
| WO2020151434A1 (en) * | 2019-01-21 | 2020-07-30 | 京东方科技集团股份有限公司 | Display panel and drive method thereof, and display system |
| CN109799641A (en) * | 2019-03-29 | 2019-05-24 | 合肥京东方光电科技有限公司 | A kind of array substrate and preparation method thereof, liquid crystal display panel |
| CN110379939A (en) * | 2019-07-26 | 2019-10-25 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof, display device |
| CN110752238A (en) * | 2019-10-30 | 2020-02-04 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| CN211454166U (en) * | 2020-01-16 | 2020-09-08 | 京东方科技集团股份有限公司 | Display device |
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| CN112817477B (en) | 2024-03-15 |
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