CN115268676A - Display substrate and display device - Google Patents
Display substrate and display device Download PDFInfo
- Publication number
- CN115268676A CN115268676A CN202110473279.5A CN202110473279A CN115268676A CN 115268676 A CN115268676 A CN 115268676A CN 202110473279 A CN202110473279 A CN 202110473279A CN 115268676 A CN115268676 A CN 115268676A
- Authority
- CN
- China
- Prior art keywords
- substrate
- touch electrode
- display
- grid
- base plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 199
- 229910052751 metal Inorganic materials 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 55
- 238000002834 transmittance Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000005538 encapsulation Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
-
- 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
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The display substrate and the display device provided by the present disclosure include: the substrate comprises a substrate and a light source, wherein the substrate is provided with a first display area and a second display area positioned on at least one side of the first display area, and the light transmittance of the first display area is greater than that of the second display area; the touch electrode structure is positioned on the substrate and comprises a plurality of touch electrodes, each touch electrode comprises a latticed structure, the grid of each touch electrode in the first display area is a transparent conductive grid, the grid of each touch electrode in the second display area is a metal grid, and the transparent conductive grids of the same touch electrode are electrically connected with the metal grids.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display substrate and a display device.
Background
With the rapid development of smart phones, not only is the appearance of the phone attractive, but also more excellent visual experience is required to be brought to mobile phone users. Various manufacturers start to increase the screen occupation ratio on the smart phone, so that the full screen becomes a new competitive point of the smart phone. Along with the development of full face screen, promotion demand in performance and function also increases with each other, and the impact that can bring the vision and use in experiencing to a certain extent under the prerequisite that does not influence the high screen proportion of taking up under the screen.
Disclosure of Invention
In view of this, embodiments of the present disclosure provide a display substrate and a display device, so as to achieve both the touch function and the transmittance of the camera area.
Therefore, an embodiment of the present disclosure provides a display substrate, including:
the substrate comprises a substrate base plate and a first display area, wherein the substrate base plate comprises a second display area positioned on at least one side of the first display area, and the light transmittance of the first display area is greater than that of the second display area;
the touch electrode structure is positioned on the substrate and comprises a plurality of touch electrodes, each touch electrode comprises a latticed structure, the grid of the touch electrode in the first display area is a transparent conductive grid, the grid of the touch electrode in the second display area is a metal grid, and the transparent conductive grid and the metal grid of the same touch electrode are electrically connected.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, the layer where the transparent conductive mesh is located between the layer where the metal mesh is located and the substrate.
In some embodiments, the display substrate provided in the embodiments of the present disclosure further includes a plurality of transparent bridging portions, and the plurality of transparent bridging portions and the transparent conductive mesh are of the same layer and the same material.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, the plurality of touch electrodes include a plurality of first touch electrodes and a plurality of second touch electrodes;
the first touch electrode extends along a first direction, the second touch electrode extends along a second direction, and the first direction and the second direction are arranged in a crossed mode;
the grids of the first touch electrodes are electrically connected through the transparent bridging parts, and the grids of the second touch electrodes are integrally arranged or are overlapped with the transparent conductive grids through via holes.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, the touch electrode including the transparent conductive mesh is the first touch electrode and/or the second touch electrode.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, the first touch electrode and the second touch electrode each include the transparent conductive mesh;
the transparent conductive grids contained in the first touch electrode and the transparent conductive grids contained in the second touch electrode are disconnected;
the transparent bridging portion is located in the second display area.
In some embodiments, in the above display substrate provided by the embodiments of the present disclosure, in the touch electrode including both the transparent conductive mesh and the metal mesh, an orthogonal projection of the metal mesh on the substrate base plate and an orthogonal projection of the transparent conductive mesh on the substrate base plate have a plurality of intersections, and at least a part of the intersections are located in the second display region.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, the display substrate further includes: the insulating layer is positioned between the layer where the transparent conductive grid is located and the layer where the metal grid is located, the insulating layer comprises a plurality of first through holes, and the orthographic projections of the first through holes on the substrate base plate and the orthographic projections of at least parts of the cross points on the substrate base plate are provided with overlapping areas.
In some embodiments, in the display substrate provided by the embodiments of the present disclosure, the first through holes having an overlapping area and the intersections correspond to one another.
In some embodiments, in the above display substrate provided by an embodiment of the present disclosure, the intersection having an overlapping area with the first through hole is symmetrically disposed about a center of the first display region.
In some embodiments, in the above display substrate provided in the embodiments of the present disclosure, in the touch electrode including both the transparent conductive mesh and the metal mesh, an orthogonal projection of grid lines of the metal mesh on the substrate base plate and an orthogonal projection of grid lines of the transparent conductive mesh on the substrate base plate have a first overlapping portion, and at least a part of the first overlapping portion is located in the second display area.
In some embodiments, in the display substrate provided by the embodiments of the present disclosure, the insulating layer further includes a plurality of second through holes, and an orthogonal projection of the plurality of second through holes on the substrate has an overlapping region with an orthogonal projection of the first overlapping portion on the substrate.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, the transparent bridging portions electrically connected to the same first touch electrode are symmetrically distributed about a central axis of the first touch electrode in the first direction.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, the grid lines of the touch electrode extend along a third direction and a fourth direction, the third direction is arranged to intersect with both the first direction and the second direction, and the fourth direction is arranged to intersect with both the first direction, the second direction and the third direction;
the transparent bridging portion comprises two first wires extending along the third direction and two second wires extending along the fourth direction, and the two first wires and the two second wires intersect to form a grid identical to the first touch electrode at one end far away from the first touch electrode.
In some embodiments, in the display substrate provided in this disclosure, an orthogonal projection of the first trace on the substrate and an orthogonal projection of the grid line extending in the fourth direction of the second touch electrode on the substrate overlap each other, and an orthogonal projection of the first trace on the substrate and an orthogonal projection of the grid line extending in the third direction of the second touch electrode on the substrate do not overlap each other;
the orthographic projection of the second routing wires on the substrate base plate and the orthographic projection of the grid lines extending in the third direction of the second touch electrode on the substrate base plate are mutually overlapped, and the orthographic projection of the second routing wires on the substrate base plate and the orthographic projection of the grid lines extending in the fourth direction of the second touch electrode on the substrate base plate are not mutually overlapped.
In some embodiments, in the display substrate provided in this disclosure, orthographic projections of the two first traces on the substrate and orthographic projections of grid lines of the first touch electrodes extending in the third direction on the substrate overlap each other;
orthographic projections of the two second routing wires on the substrate base plate are mutually overlapped with orthographic projections of grid lines, extending in the fourth direction, of the first touch electrode on the substrate base plate.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, an orthogonal projection of one of the first traces on the substrate and an orthogonal projection of grid lines, extending in the third direction, of the first touch electrode on the substrate overlap each other, and an orthogonal projection of the other of the first traces on the substrate and an orthogonal projection of grid lines, extending in the third direction, of the first touch electrode on the substrate are disconnected;
the orthographic projection of one second routing wire on the substrate base plate and the orthographic projection of the grid line extending in the fourth direction of the first touch electrode on the substrate base plate are mutually overlapped, and the orthographic projection of the other second routing wire on the substrate base plate and the orthographic projection of the grid line extending in the fourth direction of the first touch electrode on the substrate base plate are disconnected.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, in a direction perpendicular to the substrate base plate, grid lines extending along the third direction in the first routing lines and the first touch electrodes and grid lines extending along the fourth direction in the second routing lines and the first touch electrodes have a second overlapping portion;
the insulating layer further comprises a plurality of third through holes, and orthographic projections of the third through holes on the substrate base plate and orthographic projections of the second overlapped parts on the substrate base plate have overlapping areas.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, an orthographic projection of the third through hole on the substrate is located at two ends of an orthographic projection of the second overlapping portion on the substrate.
Based on the same inventive concept, the embodiment of the present disclosure further provides a display device, including: the display device comprises a display substrate and a light-taking module; the display substrate is the display substrate, and the light extraction module is arranged in the first display area.
The beneficial effects of this disclosure are as follows:
the display substrate and the display device provided by the embodiment of the disclosure comprise: the substrate comprises a substrate and a light source, wherein the substrate is provided with a first display area and a second display area positioned on at least one side of the first display area, and the light transmittance of the first display area is greater than that of the second display area; the touch electrode structure is positioned on the substrate and comprises a plurality of touch electrodes, each touch electrode comprises a latticed structure, grids of the touch electrodes in the first display area are transparent conductive grids, grids of the touch electrodes in the second display area are metal grids, and the transparent conductive grids and the metal grids of the same touch electrode are electrically connected. The great first display area of luminousness can be used to set up camera under the screen, through using transparent conductive grid to replace the metal mesh in the correlation technique in first display area, when reaching the realization touch performance, can not influence the luminousness of camera position under the screen, and the camera position can not appear because of the light diffraction scheduling problem that the metal mesh sheltered from and produce under the screen.
Drawings
Fig. 1 is a schematic structural diagram of a display substrate according to an embodiment of the disclosure;
FIG. 2 is an enlarged view of the region Z1 in FIG. 1;
FIG. 3 is a schematic structural diagram of the metal grid of FIG. 2;
FIG. 4 is a schematic diagram of the structure of the transparent conductive grid of FIG. 2;
FIG. 5 is a schematic view of a further enlarged structure of the region Z1 in FIG. 1;
FIG. 6 is a schematic structural diagram of the metal grid of FIG. 5;
FIG. 7 is a schematic structural diagram of the transparent conductive mesh and the transparent bridge portion in FIG. 5;
FIG. 8 is a schematic cross-sectional view taken along line a-b of FIG. 5;
FIG. 9 is a schematic cross-sectional view taken along line c-d of FIG. 5;
FIG. 10 is a schematic cross-sectional view taken along line e-f of FIG. 5;
FIG. 11 is a schematic cross-sectional view taken along line g-h of FIG. 5;
FIG. 12 is an enlarged view of the region Z2 in FIG. 1;
FIG. 13 is a schematic structural view of the metal grid of FIG. 12;
FIG. 14 is a schematic view of the transparent bridge portion of FIG. 12;
FIG. 15 is a schematic view of still another enlarged structure of the region Z1 in FIG. 1;
FIG. 16 is a schematic view of a further enlarged structure of the region Z2 in FIG. 1;
FIG. 17 is a schematic view of still another enlarged structure of the region Z2 in FIG. 1;
FIG. 18 is a schematic structural view of the metal grid of FIG. 17;
FIG. 19 is a schematic view of the structure of the transparent bridge portion of FIG. 17;
fig. 20 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the embodiments of the present disclosure. It should be noted that the sizes and shapes of the various figures in the drawings are not to scale, but are merely intended to schematically illustrate the present disclosure. And the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in the description and claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. 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. "inner", "outer", "upper", "lower", 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.
With the rapid development of Active Matrix Organic Light Emitting Displays (AMOLEDs), displays such as mobile phones enter a large screen era, and people's love for large screens can never be met. In order to meet the requirements of people On large screens, narrow frames, high resolution, lighter weight and thinner thickness, displays such as mobile phones carrying a Flexible Metal Layer On Cell (FMLOC) process have important significance in future development. In order to meet the requirements of people on a full-screen mobile phone, a camera under a screen becomes one of the mainstream trends in the future. Because the camera position is higher to the condition requirements such as luminousness, light diffraction under the screen, if use the metal wire in camera position under the screen, can influence the luminousness of this position, and can produce the problem of light diffraction.
In order to solve at least the above problems in the related art, embodiments of the present disclosure provide a display substrate, as shown in fig. 1 to 4, which may include:
the substrate 101 includes a first display area AA1 and a second display area AA2 located on at least one side of the first display area AA1, and the light transmittance of the first display area AA1 is greater than that of the second display area AA2. In some embodiments, the second display area AA2 is disposed around the first display area AA1. When the display substrate is applied to the light emission of the display device, the same detection equipment is adopted to carry out light collection on two different areas, and then data comparison is obtained.
A touch electrode structure located on the substrate 101, wherein the touch electrode structure includes a plurality of touch electrodes T, and in some embodiments, the plurality of touch electrodes T includes a grid-shaped structure. The grid of the touch electrode T in the first display area AA1 is a transparent conductive grid 102, the grid of the touch electrode T in the second display area AA2 is a metal grid 103, and the transparent conductive grid 102 and the metal grid 103 of the same touch electrode T are electrically connected. In the above-mentioned display substrate that this disclosed embodiment provided, the great first display area AA1 department of luminousness can install the module of getting light such as camera, through using transparent conductive grid 102 to replace the metal mesh among the correlation technique in first display area AA1 department, when reaching the realization touch-control performance, can not influence the luminousness of camera position under the screen, and the camera position can not appear because of the light diffraction scheduling problem that the metal mesh shelters from and produces under the screen.
In some embodiments, the transparent conductive mesh 102 may be fabricated using indium tin oxide, indium zinc oxide, or the like. In the present disclosure, the shape of the first display area AA1 may be a circle as shown in fig. 1, or may be other shapes such as a square, and may be designed according to actual needs, which is not limited herein.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, as shown in fig. 5 to 11, the layer where the transparent conductive mesh 102 is located may be located between the layer where the metal mesh 103 is located and the substrate 101. Generally, the area of the second display area AA2 is much larger than the area of the first display area AA1, so that the probability that the first display area AA2 is touched is larger, and the smaller the distance between the touch electrode and the touch surface is, the easier the touch action is to be sensed, and therefore, by disposing the layer where the transparent conductive grids 102 are disposed between the layer where the metal grids 103 are disposed and the substrate 101, the metal grids 103 of the second display area AA2 can be closer to the touch surface than the transparent conductive grids 102 of the first display area AA1, which is beneficial to improving the overall touch sensitivity.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, as shown in fig. 5 to 11, a plurality of transparent bridging portions 104 may further be included, and the plurality of transparent bridging portions 104 may be of the same layer and material as the transparent conductive grid 102, in other words, the transparent bridging portions 104 may be used to replace a bridging portion (Bridge) made of a metal material in the related art. There is visual problem in the bridging portion of metal material and the electric connection position of metal mesh among the correlation technique, influences user experience, and adopt transparent bridging portion 104 to replace the bridging portion of metal material in this disclosure, can solve the problem that the electric connection position of bridging portion and metal mesh is visual, improves user experience.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, as shown in fig. 5, 6, 12 and 13, the plurality of touch electrodes T may include a plurality of first touch electrodes 1031 and a plurality of second touch electrodes 1032;
the first touch electrode 1031 extends along a first direction Y, the second touch electrode 1032 extends along a second direction X, and the first direction Y and the second direction X are arranged in a crossed manner;
the grids of the first touch electrodes 1031 are electrically connected by the transparent bridging portions 104, and the grids of the second touch electrodes 1032 are integrally arranged or arranged by overlapping the transparent conductive grids via the via holes.
In some embodiments, the first touch electrode 1031 may be a touch driving electrode Tx, and the second touch electrode 1032 may be a touch sensing electrode Rx; alternatively, the first touch electrode 1031 may be a touch sensing electrode Rx, and the second touch electrode 1032 may be a touch driving electrode Tx, which is not limited herein.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, as shown in fig. 2 and 5, the touch electrode including the transparent conductive mesh 102 may be the first touch electrode 1031 and/or the second touch electrode 1032. That is, only a part or all of the patterns of the first touch electrode 1031 may be present in the first display area AA1 having a large light transmittance, only a part or all of the patterns of the second touch electrode 1032 may be present, and a part or all of the patterns of the first touch electrode 1031 and a part or all of the patterns of the second touch electrode 1032 may be present at the same time.
Specifically, when only the pattern of the first touch electrode 1031 or only the pattern of the second touch electrode 1032 exists in the first display area AA1, as shown in fig. 2, the transparent conductive grids 102 in the first display area AA1 may be integrally disposed.
When the patterns of the first touch electrode 1031 and the second touch electrode 1032 exist in the first display area AA1 at the same time, that is, the first touch electrode 1031 and the second touch electrode 1032 both include the transparent conductive mesh 102, in order to avoid mutual interference between signals on the first touch electrode 1031 and the second touch electrode 1032, the transparent conductive mesh 102 included in the first touch electrode 1031 and the transparent conductive mesh 102 included in the second touch electrode 1032 may be disconnected, and the transparent bridging portion 104 electrically connected to the first touch electrode 1031 may be located in the second display area AA2.
In some embodiments, in the above-mentioned display substrate provided in the embodiments of the present disclosure, as shown in fig. 2 and 5, in a touch electrode (e.g., the first touch electrode 1031 or the second touch electrode 1032) including both the transparent conductive mesh 102 and the metal mesh 103, an orthogonal projection of the metal mesh 103 on the substrate 101 and an orthogonal projection of the transparent conductive mesh 102 on the substrate 101 have a plurality of intersections K, and at least a portion of the intersections K may be located in the second display area AA2 to improve the light transmittance of the first display area AA1. Specifically, it is shown in fig. 2 and 5 that all the cross points K are located at the second display area AA2, and the light transmittance of the first display area AA1 can be maximally secured.
In some embodiments, the second display area AA2 also includes a transparent conductive grid 102 in an area adjacent to the first display area AA1, that is, the transparent conductive grid 102 of the first display area AA1 extends to the second display area AA to form an intersection K for electrically connecting with the metal grid 103.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, as shown in fig. 10 and 11, the display substrate may further include: the insulating layer 105 is located between the layer where the transparent conductive mesh 102 is located and the layer where the metal mesh 103 is located, and the insulating layer 105 may include a plurality of first through holes h1, where an orthographic projection of the plurality of first through holes h1 on the substrate base 101 and an orthographic projection of the at least part of intersection points K on the substrate base 101 have an overlapping area, so as to implement electrical connection between the transparent conductive mesh 102 and the metal mesh 103 included in the same touch electrode (for example, the first touch electrode 1031 or the second touch electrode 1032).
In some embodiments, at least one intersection K of the transparent conductive grid 102 and the metal grid 103 has two transparent conductive grid lines and two metal grid lines, and even if any one of the four grid lines is in poor contact at the intersection K, the reliability of electrical connection can be ensured by the other three grid lines, so that the transparent conductive grid 102 and the metal grid 103 are connected by punching holes at the intersection K, and the yield of products can be improved.
In some embodiments, as shown in fig. 2, there may be a case where one transparent conductive grid line overlaps one metal grid line between the transparent conductive grid 102 and the metal grid 103, that is, an orthogonal projection of the grid line of the metal grid 103 on the substrate base 101 and an orthogonal projection of the grid line of the transparent conductive grid 102 on the substrate base 101 may have a first overlap O, and at least a portion of the first overlap O may be located in the second display area AA2, at which time a plurality of second through holes h2 may be provided in the insulating layer 105, and an orthogonal projection of the plurality of second through holes h2 on the substrate base 101 and an orthogonal projection of the first overlap O on the substrate base 101 may have an overlapping area, so as to achieve electrical connection between the transparent conductive grid 102 and the metal grid 103 through the second through holes h2, and may be perforated at as many overlapping positions as possible, so that even if the transparent conductive grid 102 and the metal grid 103 are in poor contact at a few overlapping positions, reliability of the electrical connection may be ensured by other overlapping positions.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, as shown in fig. 2 and 5, there may be a one-to-one correspondence between the first through hole h1 having the overlapping area and the intersection K. The first through hole h1 is formed in the cross point K, so that the line width of grid lines at the cross point K can be prevented from being larger, the optical shielding effect of the metal grids on the sub-pixels can be reduced, and the defect of black spots caused by shielding can be improved.
In some embodiments, in the above-described display substrate provided by the embodiments of the present disclosure, as shown in fig. 2 and 5, the intersection K having the overlapping area with the first through hole h1 may be symmetrically disposed about the center of the first display area AA1. In some embodiments, the intersection points K having the overlapping regions with the first through holes h1 may also be randomly arranged, and are not limited herein.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, as shown in fig. 5, 12, 15 and 16, the transparent bridging portions 104 electrically connected to the same first touch electrode 1031 may be symmetrically distributed about the central axis P of the first touch electrode 1031 in the first direction Y, that is, the transparent bridging portions 104 are disposed on two sides of the central axis P of the first touch electrode 1031 in the first direction Y, so that the first touch electrode 1031 is electrically connected to the metal mesh 103 at the disconnection position through the two transparent bridging portions 104, reliability of electrical connection is ensured, and stable transmission of touch signals is facilitated.
In some embodiments, in the display substrate provided in the embodiments of the present disclosure, as shown in fig. 5, 12, 15 and 16, the grid lines of the touch electrodes (including the first touch electrodes 1031 and the second touch electrodes 1032) may extend along a third direction M and a fourth direction N, where the third direction M crosses the first direction Y and the second direction X, and the fourth direction N crosses the first direction Y, the second direction X and the third direction M;
to facilitate overlapping the metal grids of the first touch electrode 1031, the transparent bridging portion 104 may include two first routing lines 1041 extending along the third direction M and two second routing lines 1042 extending along the fourth direction N, where the two first routing lines 1041 and the two second routing lines 1042 intersect to form a grid identical to the first touch electrode 1031 at an end away from the first touch electrode 1031.
It should be understood that, the above only illustrates the manner of disposing the bridge portion 104 by taking the grid of the touch electrode as a parallelogram as an example, in some embodiments, the grid shape of the touch electrode may also be other shapes such as a regular hexagon (as shown in fig. 17 to 19), and at this time, the shape and the position of the transparent bridge portion 104 may be flexibly set according to the specific shape of the touch electrode, which is not limited herein.
In some embodiments, as shown in fig. 5 to 7 and 12 to 14, in the display substrate provided in the embodiment of the present disclosure, an orthographic projection of the first trace 1041 on the substrate 101 and an orthographic projection of the grid line extending in the fourth direction N of the second touch electrode 1032 on the substrate 101 overlap each other, and an orthographic projection of the first trace 1041 on the substrate 101 and an orthographic projection of the grid line extending in the third direction M of the second touch electrode 1032 on the substrate 101 do not overlap each other;
the orthographic projection of the second wire 1042 on the base substrate 101 overlaps with the orthographic projection of the grid lines of the second touch electrode 1032 extending in the third direction M on the base substrate 101, and the orthographic projection of the second wire 1042 on the base substrate 101 does not overlap with the orthographic projection of the grid lines of the second touch electrode 1032 extending in the fourth direction N on the base substrate 101.
The arrangement manner can ensure that the first wire 1041 only has an intersection with the grid lines extending in the fourth direction N of the second touch electrode 1032, and the second wire 1042 only has an intersection with the grid lines extending in the third direction M of the second touch electrode 1032; the grid lines extending in the third direction M of the second touch electrode 1032 do not exist directly above the first wire 1041, and the grid lines extending in the fourth direction N of the second touch electrode 1032 do not exist directly above the second wire 1042, so that the transparent bridge portion 104 is adopted to bridge the first touch electrode 1031, and meanwhile, the coupling capacitance between the transparent bridge portion 104 and the second touch electrode 1032 is ensured to be small.
In some embodiments, as shown in fig. 5 to 7 and 12 to 14, orthographic projections of the two first traces 1041 on the substrate 101 may overlap with orthographic projections of grid lines extending in the third direction M of the first touch electrode 1031 on the substrate 101; the orthographic projections of the two second routing wires 1042 on the substrate 101 may overlap with the orthographic projection of the grid lines of the first touch electrode 1031 extending in the fourth direction N on the substrate 101.
In some embodiments, as shown in fig. 15 and 16, an orthographic projection of one first trace 1041 on the substrate base 101 may overlap with an orthographic projection of grid lines extending from the first touch electrode 1031 in the third direction M on the substrate base 101, and an orthographic projection of another first trace 1041 on the substrate base 101 may be disconnected from an orthographic projection of grid lines extending from the first touch electrode 1031 in the third direction N on the substrate base 101; an orthographic projection of one of the second routing lines 1042 on the substrate 101 may overlap with an orthographic projection of the grid lines of the first touch electrode 1031 extending in the fourth direction N on the substrate 101, and another one of the second routing lines 1042 is disconnected between the orthographic projection of the second routing line 1042 on the substrate 101 and the orthographic projection of the grid lines of the first touch electrode 1031 extending in the fourth direction N on the substrate 101.
Both of the above two arrangements can ensure that the grid lines extending in the third direction M of the first trace 1041 and the first touch electrode 1031 have an overlapping region, and the grid lines extending in the fourth direction N of the second trace 1042 and the first touch electrode 1031 have an overlapping region, that is, as shown in fig. 5, 8, 9 and 12, in the direction perpendicular to the substrate 101, the grid lines extending in the third direction M of the first trace 1041 and the first touch electrode 1031 and the grid lines extending in the fourth direction N of the second trace 1042 and the first touch electrode 1031 may have a second overlapping portion Q.
In some embodiments, as shown in fig. 5, 8, 9 and 12, a plurality of third through holes h3 may be disposed in the insulating layer 105, and an orthographic projection of the plurality of third through holes h3 on the substrate base plate 101 and an orthographic projection of the second overlapping portion Q on the substrate base plate 101 have an overlapping region, so as to use the third through holes h3 to conduct the first touch electrode 1031 and the transparent bridging portion 104.
In some embodiments, in the above-mentioned display substrate provided by the embodiments of the present disclosure, as shown in fig. 5 and 12, an orthographic projection of the third through hole h3 on the substrate 101 may be located at both ends of an orthographic projection of the second overlapping portion Q on the substrate 101, so as to improve reliability of electrical connection.
In some embodiments, the display substrate provided in the embodiments of the present disclosure may further include: a plurality of first light emitting devices positioned in the first display area AA1, a plurality of first pixel circuits positioned in the second display area AA2, a plurality of second pixel circuits, and a plurality of second light emitting devices; the first pixel circuit is electrically connected with the first light emitting device, and the second pixel circuit is electrically connected with the second light emitting device, so that a driving signal is provided for the first light emitting device through the first pixel circuit and a driving signal is provided for the second light emitting device through the second pixel circuit, and therefore the full-screen display function of the whole display area AA is achieved.
In addition, the same functional film layers of the first pixel circuit and the second pixel circuit are the same layer and the same material, the same functional film layers of the first light emitting device and the second light emitting device are the same layer and the same material, and the layer where the first pixel circuit and the second pixel circuit are located can be located between the layer where the transparent conductive grid 102 is located and the layer where the first light emitting device and the second light emitting device are located.
In some embodiments, the density of the plurality of second light emitting devices in the second display area AA2 may be the same as the density of the plurality of first light emitting devices in the first display area AA1, so as to ensure that the resolution (PPI) of the second display area AA2 is the same as the resolution of the first display area AA1, thereby improving the overall display effect. In this case, the first light emitting device may include a first electrode, the second light emitting device may include a second electrode, and the first electrode and the second electrode are both a reflective anode or a reflective cathode; in order to improve the light transmittance of the first display area AA1 where the first light emitting device is located, when the light emitting color of the first light emitting device is the same as the light emitting color of the second light emitting device, the orthographic projection area of the first electrode on the substrate may be set smaller than the orthographic projection area of the second electrode.
In some embodiments, the density of the plurality of second light emitting devices in the second display area AA2 may be greater than the density of the plurality of first light emitting devices 102 in the first display area AA1 to increase the light transmittance of the first display area AA1. In this case, the first light emitting device 102 may include a first electrode, and the second light emitting device may include a second electrode, the first electrode and the second electrode being both a reflective anode or a reflective cathode; since the resolution of the first display area AA1 is smaller than the resolution of the second display area AA2, the light transmittance of the first display area AA1 can be ensured, and therefore, the size of the first electrode does not need to be reduced.
In some embodiments, as shown in fig. 8 to fig. 11, the display substrate provided in the embodiments of the present disclosure may further include a protection layer 106 disposed on an entire surface of a layer on which the metal mesh 103 is located, the side being away from the base substrate 101, and an encapsulation layer 107 disposed between the metal mesh 103 and the base substrate 101, where the encapsulation layer 107 may include two inorganic encapsulation layers and an organic encapsulation layer between the two inorganic encapsulation layers. For other known components (for example, the transparent trace connecting the first pixel circuit and the first light emitting device) in the display substrate, reference may be made to related technologies, and details are not described herein.
Based on the same inventive concept, an embodiment of the present disclosure further provides a display device, as shown in fig. 20, which may include: a display substrate 01 and a light-taking module 02; the display substrate 01 may be the display substrate provided in the embodiment of the disclosure, and the light extraction module 02 may be disposed in the first display area AA1. In some embodiments, the light extraction module 02 may be a camera module, an ambient light sensor, or the like. Because the principle of solving the problems of the display device is similar to that of solving the problems of the display substrate, the display device provided by the embodiment of the disclosure can be implemented by referring to the implementation of the display substrate, and repeated parts are not described again.
In some embodiments, the display device can be applied to full-screen display products in the technical field of organic electroluminescence display, the technical field of quantum dot light-emitting display and the like. Alternatively, the display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, an intelligent watch, a fitness wrist strap, and a personal digital assistant. The display device includes but is not limited to: radio frequency unit, network module, audio output & input unit, sensor, display unit, user input unit, interface unit, memory, processor, and power supply. In addition, it may be understood by those skilled in the art that the above-described structure does not constitute a limitation on the above-described display device provided by the embodiment of the present disclosure, in other words, more or less components described above may be included in the above-described display device provided by the embodiment of the present disclosure, or some components may be combined, or different component arrangements may be provided.
It will be apparent to those skilled in the art that various changes and modifications can be made in the present disclosure without departing from the spirit and scope of the disclosure. Thus, it is intended that the present disclosure also encompass such modifications and variations as fall within the scope of the claims and their equivalents.
Claims (20)
1. A display substrate, comprising:
the substrate comprises a substrate base plate and a first display area, wherein the substrate base plate comprises a second display area positioned on at least one side of the first display area, and the light transmittance of the first display area is greater than that of the second display area;
the touch electrode structure is positioned on the substrate and comprises a plurality of touch electrodes, each touch electrode comprises a latticed structure, the grid of the touch electrode in the first display area is a transparent conductive grid, the grid of the touch electrode in the second display area is a metal grid, and the transparent conductive grid and the metal grid of the same touch electrode are electrically connected.
2. The display substrate of claim 1, wherein the layer of transparent conductive mesh is between the layer of metal mesh and the base substrate.
3. The display substrate of claim 2, further comprising a plurality of transparent bridge portions, wherein the plurality of transparent bridge portions are of the same layer and material as the transparent conductive mesh.
4. The display substrate according to claim 3, wherein the plurality of touch electrodes comprises a plurality of first touch electrodes and a plurality of second touch electrodes;
the first touch electrode extends along a first direction, the second touch electrode extends along a second direction, and the first direction and the second direction are arranged in a crossed mode;
the grids of the first touch electrodes are electrically connected through the transparent bridging parts, and the grids of the second touch electrodes are integrally arranged or are overlapped with the transparent conductive grids through via holes.
5. The display substrate of claim 4, wherein the touch electrode comprising the transparent conductive grid is the first touch electrode and/or the second touch electrode.
6. The display substrate of claim 5, wherein the first touch electrode and the second touch electrode each comprise the transparent conductive mesh;
the transparent conductive grids contained in the first touch electrode and the transparent conductive grids contained in the second touch electrode are disconnected;
the transparent bridging portion is located in the second display area.
7. The display substrate according to any one of claims 2 to 6, wherein in the touch electrode including both the transparent conductive mesh and the metal mesh, an orthogonal projection of the metal mesh on the substrate base plate and an orthogonal projection of the transparent conductive mesh on the substrate base plate have a plurality of intersections, and at least a part of the intersections are located in the second display region.
8. The display substrate of claim 7, further comprising: the insulating layer is positioned between the layer where the transparent conductive grid is located and the layer where the metal grid is located, the insulating layer comprises a plurality of first through holes, and the orthographic projections of the first through holes on the substrate base plate and the orthographic projections of at least parts of the cross points on the substrate base plate are provided with overlapping areas.
9. The display substrate of claim 8, wherein the first vias having overlapping regions and the intersections are in one-to-one correspondence.
10. The display substrate according to claim 9, wherein the intersection having an overlapping area with the first through hole is symmetrically disposed about a center of the first display region.
11. The display substrate according to claim 8, wherein in the touch electrode including both the transparent conductive mesh and the metal mesh, an orthogonal projection of grid lines of the metal mesh on the substrate base and an orthogonal projection of grid lines of the transparent conductive mesh on the substrate base have a first overlapping portion, and at least a part of the first overlapping portion is located in the second display region.
12. The display substrate of claim 11, wherein the insulating layer further comprises a plurality of second vias having an overlapping area of an orthographic projection of the plurality of second vias on the substrate base and an orthographic projection of the first overlap on the substrate base.
13. The display substrate according to claim 4, wherein the transparent bridging portions electrically connected to the same first touch electrode are symmetrically distributed about a central axis of the first touch electrode in the first direction.
14. The display substrate according to claim 13, wherein the grid lines of the touch electrode extend along a third direction and a fourth direction, the third direction is intersected with the first direction and the second direction, and the fourth direction is intersected with the first direction, the second direction and the third direction;
the transparent bridging portion comprises two first routing lines extending along the third direction and two second routing lines extending along the fourth direction, and the two first routing lines and the two second routing lines intersect at one end far away from the first touch electrode to form a grid identical to the grid of the first touch electrode.
15. The display substrate according to claim 14, wherein an orthographic projection of the first traces on the underlying substrate and an orthographic projection of the grid lines of the second touch electrodes extending in the fourth direction on the underlying substrate overlap each other, and an orthographic projection of the first traces on the underlying substrate and an orthographic projection of the grid lines of the second touch electrodes extending in the third direction on the underlying substrate do not overlap each other;
the orthographic projection of the second routing lines on the substrate base plate and the orthographic projection of the grid lines of the second touch electrodes extending in the third direction on the substrate base plate are mutually overlapped, and the orthographic projection of the second routing lines on the substrate base plate and the orthographic projection of the grid lines of the second touch electrodes extending in the fourth direction on the substrate base plate are not mutually overlapped.
16. The display substrate according to claim 14, wherein orthographic projections of the two first traces on the substrate overlap with orthographic projections of grid lines of the first touch electrodes extending in the third direction on the substrate;
orthographic projections of the two second routing wires on the substrate base plate are mutually overlapped with orthographic projections of grid lines, extending in the fourth direction, of the first touch electrode on the substrate base plate.
17. The display substrate according to claim 14, wherein an orthogonal projection of one of the first traces on the substrate overlaps an orthogonal projection of the grid lines of the first touch electrodes extending in the third direction on the substrate, and another orthogonal projection of the first trace on the substrate is disconnected from an orthogonal projection of the grid lines of the first touch electrodes extending in the third direction on the substrate;
the orthographic projection of one second routing line on the substrate base plate and the orthographic projection of the grid line extending in the fourth direction of the first touch electrode on the substrate base plate are mutually overlapped, and the orthographic projection of the other second routing line on the substrate base plate and the orthographic projection of the grid line extending in the fourth direction of the first touch electrode on the substrate base plate are disconnected.
18. The display substrate according to claim 16 or 17, wherein, in a direction perpendicular to the substrate, the grid lines extending in the third direction in the first trace and the first touch electrode and the grid lines extending in the fourth direction in the second trace and the first touch electrode have a second overlapping portion;
the insulating layer further comprises a plurality of third through holes, and orthographic projections of the third through holes on the substrate base plate and orthographic projections of the second overlapped parts on the substrate base plate have overlapping areas.
19. The display substrate of claim 18, wherein an orthographic projection of the third via on the base substrate is at both ends of an orthographic projection of the second overlapping portion on the base substrate.
20. A display device, comprising: the display device comprises a display substrate and a light-taking module; the display substrate according to any one of claims 1 to 19, wherein the light extraction module is disposed in the first display region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110473279.5A CN115268676A (en) | 2021-04-29 | 2021-04-29 | Display substrate and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110473279.5A CN115268676A (en) | 2021-04-29 | 2021-04-29 | Display substrate and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115268676A true CN115268676A (en) | 2022-11-01 |
Family
ID=83744908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110473279.5A Pending CN115268676A (en) | 2021-04-29 | 2021-04-29 | Display substrate and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115268676A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116185232A (en) * | 2023-04-28 | 2023-05-30 | 惠科股份有限公司 | Array substrate and touch display panel |
| WO2023212850A1 (en) * | 2022-05-05 | 2023-11-09 | 京东方科技集团股份有限公司 | Touch display substrate and touch display device |
-
2021
- 2021-04-29 CN CN202110473279.5A patent/CN115268676A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023212850A1 (en) * | 2022-05-05 | 2023-11-09 | 京东方科技集团股份有限公司 | Touch display substrate and touch display device |
| CN116185232A (en) * | 2023-04-28 | 2023-05-30 | 惠科股份有限公司 | Array substrate and touch display panel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109885200B (en) | Touch display panel and touch display | |
| CN208861990U (en) | Display screen and display terminal | |
| CN111668286B (en) | Touch display device | |
| US8946578B2 (en) | Touch panel and a manufacturing method thereof | |
| CN110767681B (en) | Display screen and display terminal | |
| CN109388294B (en) | Touch panel, manufacturing method thereof and touch display device | |
| KR20120043883A (en) | Touch screen panel | |
| CN101887324A (en) | Sensing-type display device | |
| CN115268676A (en) | Display substrate and display device | |
| CN106843616A (en) | A kind of touch base plate and preparation method thereof, touch control display apparatus | |
| CN110890412A (en) | Display panel and display device | |
| CN216286614U (en) | Display substrate and display device | |
| US20140145971A1 (en) | TOUCH Panel | |
| US20130168215A1 (en) | Touch panel and method of manufacturing the same | |
| CN106164825B (en) | For improving the touch panel of the intersection construction of sensing patterns | |
| CN112864216A (en) | Display panel and electronic device | |
| CN111399684A (en) | Touch substrate, manufacturing method thereof, display panel and display device | |
| US11842019B2 (en) | Touch substrate and display panel | |
| US20220027005A1 (en) | Display module, fabrication method thereof and display device | |
| CN113157150B (en) | Touch module and display device | |
| CN112151584B (en) | Display screen and terminal | |
| KR102316228B1 (en) | Antenna-Integrated Touch Detection Apparatus And Manufacturing Method Thereof | |
| CN112394824B (en) | Touch screen and electronic equipment | |
| CN218273359U (en) | Display device and touch structure | |
| CN110767167B (en) | Display screen and display terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |