Display panel and display device
By setting an anti-shadow layer on the side of the touch electrode layer away from the substrate, the anti-shadow area covers the edge of the touch electrode, solving the problem of the etching pattern affecting the display effect and achieving better display effect and light extraction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-24
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, the etching pattern of the touch electrode affects the light emission path of the light-emitting layer, resulting in a decrease in the display effect of the display panel.
An anti-reflection layer is provided on the side of the touch electrode layer away from the substrate. The anti-reflection layer includes an anti-reflection area and a cutout area. The edge of the touch electrode is located in the anti-reflection area. The light path is changed by passing through the anti-reflection block, which improves the visibility risk.
The design of the anti-reflective layer reduces the visual risk at the edge of the touch electrode, and improves the display effect and light emission efficiency of the display panel.
Smart Images

Figure CN116301435B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of display devices, in particular to a display panel and a display device. BACKGROUND
[0002] The display panel comprises an array substrate, a light-emitting layer, and a cover plate layer arranged on a side of the light-emitting layer away from the array substrate. In order to realize the touch function of the display panel, a touch electrode is usually arranged in the cover plate layer. The touch electrode is usually formed by etching a metal layer in the cover plate layer, and the touch electrode is located above the light-emitting layer. Due to process limitations, the pattern formed by etching the touch electrode can affect the path of light emitted by the light-emitting layer when the light is emitted, thereby affecting the display effect of the display panel. SUMMARY
[0003] Embodiments of the present application provide a display panel and a display device, which are aimed at improving the display effect of the display panel.
[0004] An embodiment of the first aspect of the present application provides a display panel, comprising: a substrate; a touch electrode layer arranged on the substrate, the touch electrode layer comprising a touch electrode; and a shadow elimination layer located on a side of the touch electrode layer away from the substrate, the shadow elimination layer comprising a shadow elimination region and a hollow region, at least part of the edges of the projection of the touch electrode on the substrate being located within the projection of the shadow elimination region on the substrate.
[0005] According to the embodiment of the first aspect of the present application, the shadow elimination region is arranged along the edges of the touch electrode.
[0006] According to any one of the preceding embodiments of the first aspect of the present application, the touch electrode comprises a first touch electrode and a second touch electrode, a plurality of first touch electrodes are arranged in sequence along a first direction and are connected to each other, a plurality of second touch electrodes are arranged at intervals along a second direction, and the touch electrode further comprises a cross-bridge portion connecting adjacent two second touch electrodes.
[0007] The shadow elimination region comprises a plurality of shadow elimination blocks, and the shadow elimination blocks are arranged at the connection positions of adjacent first touch electrodes and / or the connection positions of adjacent second touch electrodes.
[0008] According to any one of the preceding embodiments of the first aspect of the present application, the shadow elimination blocks are arranged correspondingly to the cross-bridge portions.
[0009] According to any one of the preceding embodiments of the first aspect of the present application, the projection of the cross-bridge portion on the substrate is located within the projection of the shadow elimination block on the substrate.
[0010] According to any one of the preceding embodiments of the first aspect of the present application, the first touch electrode and the second touch electrode are arranged at intervals and form an insulating gap extending along a third direction, the first touch electrode and / or the second touch electrode has a touch edge facing the insulating gap, and the third direction is coplanar with the second direction and the first direction.
[0011] The orthographic projection of the touch edge adjacent to the cross-bridge portion on the substrate is within the orthographic projection of the shadow block on the substrate.
[0012] According to any one of the preceding embodiments of the first aspect of the present application, the touch electrode layer further comprises a virtual electrode located in the insulating gap, and an orthographic projection of at least part of the virtual electrode on the substrate is within the orthographic projection of the shadow block on the substrate.
[0013] According to any one of the preceding embodiments of the first aspect of the present application, an edge of the orthographic projection of at least part of the shadow block on the substrate is curved.
[0014] According to any one of the preceding embodiments of the first aspect of the present application, the orthographic projection of the shadow block on the substrate is circular or elliptical.
[0015] According to any one of the preceding embodiments of the first aspect of the present application, the touch edge comprises a first segment, a second segment, and a third segment connecting the first segment and the second segment, the orthographic projection of the first segment and the second segment on the substrate is within the orthographic projection of the shadow block on the substrate, and the sum of the lengths of the first segment and the second segment is one third to one half of the total length of the touch edge.
[0016] According to any one of the preceding embodiments of the first aspect of the present application, the plurality of shadow blocks are arranged at intervals from each other, the first touch electrode and / or the second touch electrode comprises an angle region located between the touch edges connected at intersections, and an orthographic projection of at least part of the angle region on the substrate is within the orthographic projection of the shadow block on the substrate.
[0017] According to any one of the preceding embodiments of the first aspect of the present application, four angle regions are arranged at intervals from each other around a virtual center, and the orthographic projection of the four adjacent angle regions on the substrate is within the orthographic projection of the same shadow block on the substrate.
[0018] According to any one of the preceding embodiments of the first aspect of the present application, the first touch electrode and the second touch electrode are arranged at intervals and form an insulating gap extending along a third direction, the first touch electrode and / or the second touch electrode has a touch edge facing the insulating gap, and the third direction is coplanar with the second direction and the first direction.
[0019] The shadow region further comprises a connecting portion extending along the third direction and connecting the two adjacent shadow blocks, and the orthographic projection of the insulating gap and the touch edges located on both sides of the insulating gap on the substrate is within the orthographic projection of the connecting portion on the substrate.
[0020] According to any one of the preceding embodiments of the first aspect of the present application, the touch electrode layer further comprises a virtual electrode located in the insulating gap, and an orthographic projection of at least part of the virtual electrode on the substrate is within the orthographic projection of the connecting portion on the substrate.
[0021] According to any one of the foregoing embodiments of the first aspect of the present application, the edges of the connection portions in the orthographic projection on the substrate are equidistant from the touch control edge.
[0022] According to any one of the foregoing embodiments of the first aspect of the present application, the distance between the edges of the orthographic projection on the substrate of the connection portions and the orthographic projection on the substrate of the touch control edge is greater than or equal to 2 μm.
[0023] According to any one of the foregoing embodiments of the first aspect of the present application, the touch control electrode layer comprises a first conductive layer, a second conductive layer, and an insulating layer between the first conductive layer and the second conductive layer, the first touch control electrode and the second touch control electrode are arranged on the first conductive layer, the cross-bridge portion is arranged on the second conductive layer, and the cross-bridge portion and the second touch control electrode are connected by a via,
[0024] The first conductive layer is arranged on the side of the second conductive layer away from the substrate, or the second conductive layer is arranged on the side of the first conductive layer away from the substrate, and the shadow elimination layer is arranged on the side of the second conductive layer away from the substrate.
[0025] The embodiments of the second aspect of the present application also provide a display device comprising the display panel of any one of the foregoing embodiments of the first aspect.
[0026] In the display panel provided in the embodiments of the present application, the display panel comprises a substrate and a touch control electrode layer and a shadow elimination layer arranged on the substrate. The touch control electrode layer comprises a touch control electrode, which is used to realize the touch control function of the display panel. The shadow elimination layer is arranged on the side of the touch control electrode layer away from the substrate, so that the light rays emitted from the touch control electrode layer pass through the shadow elimination layer. The shadow elimination layer comprises a shadow elimination region and a hollow region, and at least part of the edges of the orthographic projection of the touch control electrode on the substrate is located within the orthographic projection of the shadow elimination region on the substrate, i.e., the shadow elimination region is located on the side of the edge of the touch control electrode facing the light emitting surface of the display panel. The light rays emitted through at least part of the edge of the touch control electrode can be changed in the light emitting path by the shadow elimination block, thereby improving the visibility risk of the edge of the touch control electrode and improving the display effect of the display panel. BRIEF DESCRIPTION OF DRAWINGS
[0027] Other characteristics, objects and advantages of the present application will become more apparent from the following detailed description of non-restrictive embodiments, with reference to the attached drawings, in which the same or similar reference signs refer to the same or similar features.
[0028] Figure 1 is a structural schematic diagram of a display panel provided by the embodiments of the first aspect of the present application;
[0029] Figure 2 is a partial sectional view of a display panel provided by the embodiments of the present application;
[0030] Figure 3 is Figure 1a local enlarged structural schematic view of
[0031] Figure 4 is a structural schematic view of a display panel according to another embodiment of the first aspect of the present application;
[0032] Figure 5 is Figure 4 a local enlarged structural schematic view of
[0033] Legend of reference signs:
[0034] 100, substrate;
[0035] 200, touch electrode layer; 200a, touch electrode; 210, first touch electrode; 220, second touch electrode; 230, cross-bridge part; 240, insulating gap; 241, touch edge; 241a, first segment; 241b, second segment; 241c, third segment; 250, virtual electrode; a, angle region; 201, first conductive layer; 202, second conductive layer; 203, insulating layer;
[0036] 300, shadow elimination layer; 301, shadow elimination area; 302, hollow area; 310, shadow elimination block; 320, connecting part;
[0037] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION
[0038] Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely illustrative of the present application and is not intended to limit the present application, as is apparent to one of ordinary skill in the art. In the drawings and description below, well-known structures and techniques have not been shown or described in detail in order not to obscure the application. Also, in the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. In other instances, well-known structures and functions have not been described in detail in order not to obscure the present application. Features, structures or characteristics described below can be combined in any suitable manner in one or more embodiments.
[0039] In the description of the present application, it should be noted that, unless otherwise specified, the meaning of "a plurality of" is more than two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is merely for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.
[0040] The orientation words appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the embodiments of the present application. In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0041] The display panel includes an array substrate, a light-emitting layer, and a cover plate layer arranged on the side of the light-emitting layer away from the array substrate. In order to realize the touch function of the display panel, a touch electrode is usually arranged in the cover plate layer. The touch electrode usually includes row electrodes in the row direction and column electrodes in the column direction, one of the row electrodes and the column electrodes are connected to each other, and the other is connected to each other through a cross-bridge block. The touch electrode is usually etched from a metal layer located in the cover plate layer. Due to process limitations, the size of the cross-bridge block is large, and the edge of the touch electrode is also long. The touch electrode is located on the light-emitting layer, and when light exits from the light-emitting layer through the touch electrode, there is a risk that the cross-bridge block and the touch electrode can be observed by the naked eye of the user, which affects the display effect of the display panel.
[0042] In order to solve the above technical problems, the present application is proposed, in order to better understand the present application, the following will be combined with Figures 1 to 5 The display panel and the display device of the embodiments of the present application are described in detail.
[0043] Please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of a display panel provided by the first aspect of the present application, Figure 2 is Figure 1 a partial cross-sectional view.
[0044] As Figure 1 and Figure 2 shown, the first aspect of the embodiments of the present application provides a display panel, the display panel includes a substrate 100, a touch electrode layer 200 and a shadow elimination layer 300, the touch electrode layer 200 is arranged on the substrate 100, the touch electrode layer 200 includes a touch electrode 200a; the shadow elimination layer 300 is located on the side of the touch electrode layer 200 away from the substrate 100, the shadow elimination layer 300 includes a shadow elimination area and a hollow area, at least part of the edge of the orthographic projection of the touch electrode 200a on the substrate 100 is located within the orthographic projection of the shadow elimination block 310 on the substrate 100.
[0045] In Figure 1The setting area of the shadow elimination layer 300 is shown by a dashed line, so as to more clearly show the positional relationship between the shadow elimination layer 300 and the touch electrode layer 200.
[0046] In the display panel provided in the embodiment of the present application, the display panel comprises a substrate 100 and a touch electrode layer 200 and a shadow elimination layer 300 arranged on the substrate 100. The touch electrode layer 200 comprises a touch electrode 200a, which is used to realize the touch function of the display panel. The shadow elimination layer 300 is arranged on the side of the touch electrode layer 200 away from the substrate 100, so that the light emitted from the touch electrode layer 200 passes through the shadow elimination layer 300. The shadow elimination layer 300 comprises a shadow elimination area, and at least part of the edges of the projection of the touch electrode 200a on the substrate 100 is located within the projection of the shadow elimination block 310 on the substrate 100, that is, the shadow elimination area is located on the side of at least part of the edges of the touch electrode 200a facing the light emitting surface of the display panel, and the light emitted through at least part of the edges of the touch electrode 200a can be changed in light emitting path by the shadow elimination block 310, thereby improving the visibility risk of at least part of the edges of the touch electrode 200a and improving the display effect of the display panel.
[0047] In addition, the shadow elimination area is usually made of liquid material and arranged on the touch electrode layer 200, and the content of the shadow elimination area in liquid state is easy to mix with impurities such as dust. In the embodiment of the present application, the shadow elimination layer 300 comprises a shadow elimination area and a hollow area, and the hollow area is not arranged with the preparation material of the shadow elimination layer 300, that is, the shadow elimination area only covers part of the touch electrode layer 200, and the shadow elimination area is not distributed in the whole layer, and the distribution area of the shadow elimination area is small, which can reduce the excessive impurities caused by the excessive distribution area of the shadow elimination area, and further improve the yield and display effect of the display panel.
[0048] Optionally, the substrate 100 comprises an array substrate and a light emitting substrate 100, the array substrate comprises a driving circuit, and the light emitting substrate comprises a light emitting unit, and the driving circuit is used to drive the light emitting unit to emit light. The light emitting unit is used to emit light towards the side away from the array substrate, and the light emitting unit is used to emit light towards the touch electrode layer 200. When the light emitted by the light emitting unit passes through the touch electrode layer 200 and the shadow elimination layer 300, the light will continue to pass through the shadow elimination block 310 after passing through at least part of the edges of the touch electrode 200a, and the light emitting path is changed by the shadow elimination block 310, thereby improving the visibility risk of at least part of the edges of the touch electrode 200a.
[0049] The touch electrode 200a can be a self-capacitive touch electrode or a mutual-capacitive touch electrode.
[0050] The shadow elimination area can be arranged in various ways, for example, the shadow elimination area is arranged along the edges of the touch electrode 200a. More edges of the touch electrode 200a in the projection of the substrate 100 can be located within the projection of the shadow elimination area on the substrate 100.
[0051] In some optional embodiments, the touch electrode 200a includes a plurality of first touch electrodes 210 arranged in sequence along a first direction X and connected to each other, a plurality of second touch electrodes 220 arranged in sequence along a second direction Y, and a bridge 230 connecting two adjacent second touch electrodes 220 along the second direction Y, the first direction X intersecting the second direction Y. The shadow elimination area includes a plurality of shadow elimination blocks 310, which are arranged at the connection of adjacent first touch electrodes 210 and / or the connection of adjacent second touch electrodes 220.
[0052] In these optional embodiments, the shadow elimination block 310 arranged at the connection of adjacent first touch electrodes 210 means that the connection of adjacent first touch electrodes 210 is located within the projection of the shadow elimination block 310 on the substrate 100. The connection of adjacent first touch electrodes 210 has more edges, and the risk of being visible is greater. Arranging the shadow elimination block 310 at this position can improve the shadow elimination effect of the effect layer 300. Similarly, the shadow elimination block 310 arranged at the connection of adjacent second touch electrodes 220 means that the connection of adjacent second touch electrodes 220 is located within the projection of the shadow elimination block 310 on the substrate 100. The connection of adjacent second touch electrodes 220 has more edges, and the risk of being visible is greater. Arranging the shadow elimination block 310 at this position can improve the shadow elimination effect of the effect layer 300.
[0053] Optionally, the shadow elimination block 310 is arranged corresponding to the bridge 230. That is, the projection of the bridge 230 on the substrate 100 at least partially overlaps the projection of the shadow elimination block 310 on the substrate 100, for example, the projection of the bridge 230 on the substrate 100 is located within the projection of the shadow elimination block 310 on the substrate 100, so that the light emitted from the bridge 230 can pass through the shadow elimination block 310, and the risk of being visible of the bridge 230 can be reduced.
[0054] Optionally, the materials of the first touch electrode 210, the second touch electrode 220, and the bridge 230 include a light-transmitting material, for example, the materials of the first touch electrode 210, the second touch electrode 220, and the bridge 230 include a light-transmitting conductive material such as indium tin oxide, so that the light can transmit through the touch electrode layer 200, the light-emitting efficiency of the display panel can be improved, and the display effect of the display panel can be improved.
[0055] Optionally, the material of the shadow elimination layer 300 includes a light-transmitting material, for example, the material of the shadow elimination layer 300 includes optical glue, so that the light can transmit through the shadow elimination layer 300, the light-emitting efficiency of the display panel can be improved, and the display effect of the display panel can be improved.
[0056] In some optional embodiments, each shadow block 310 is arranged with a corresponding cross-bridge portion 230, and the orthographic projection of the cross-bridge portion 230 on the substrate 100 is within the orthographic projection of the corresponding shadow block 310 on the substrate 100.
[0057] In these optional embodiments, each cross-bridge portion 230 is arranged with a corresponding shadow block 310, i.e., each cross-bridge portion 230 is arranged with a shadow block 310 on the side away from the substrate 100, so that the light passing through each cross-bridge portion 230 can continue to pass through the shadow block 310, thereby reducing the visibility risk of each cross-bridge portion 230. In addition, the orthographic projection of each cross-bridge portion 230 on the substrate 100 is completely within the orthographic projection of the corresponding shadow block 310 on the substrate 100, so that the light emitted from different directions around the cross-bridge portion 230 can pass through the shadow block 310, further reducing the visibility risk of the cross-bridge portion 230.
[0058] Please refer to Figures 1 to 3 , Figure 3 is Figure 1 a partial enlarged structural schematic view.
[0059] In some optional embodiments, as shown in Figures 1 to 3 , the first touch electrode 210 and the second touch electrode 220 are arranged with an insulating gap 240 extending along a third direction Z, the insulating gap 240 is between the adjacent first touch electrode 210 and the second touch electrode 220, and the first touch electrode 210 and / or the second touch electrode 220 has a touch edge 241 facing the insulating gap 240, and the third direction Z is coplanar with the first direction X and the second direction Y.
[0060] Optionally, when the touch edge 241 is shaped, the insulating gap 240 extends along the third direction Z, and the third direction Z can be the direction of the line connecting the two ends of the insulating gap 240. The third direction Z can form an acute angle with the first direction X, or as shown in Figure 1 , the third direction Z can form an acute angle with the second direction Y. The third direction Z can be the extension direction of any edge of the first touch electrode 210 and / or the second touch electrode 220.
[0061] Optionally, since the touch edge 241 is relatively continuous and regular in shape, when the touch edge 241 is relatively long, the touch edge 241 has a visibility risk, and the touch edge 241 can be seen by the naked eye of the user, thereby affecting the display effect of the display panel.
[0062] In some optional embodiments, the plurality of shadow blocks 310 are arranged with each other, and the orthographic projection of part of the touch edge 241 adjacent to the cross-bridge portion 230 on the substrate 100 is within the orthographic projection of the shadow block 310 on the substrate 100.
[0063] In these optional embodiments, the size of the shadow block 310 is large, and the shadow block 310 is further used to shield at least part of the touch edge 241 adjacent to the bridge crossing portion 230, so that the light emitted from the touch edge 241 can continue to pass through the shadow block 310, and the shadow block 310 can destroy the continuity of the light emitted from the touch edge 241, thereby reducing the visibility risk of the touch edge 241 and further improving the display effect of the display panel.
[0064] Optionally, the touch electrode layer 200 further comprises a virtual electrode 250 located in the insulating gap 240, the virtual electrode 250 is insulatively arranged with the first touch electrode 210 and the second touch electrode 220, and the virtual electrode 250 is used to improve the uniformity of the electrode distribution of the touch electrode layer 200. The virtual electrode 250 can be one, or a plurality of virtual electrodes 250 are spaced apart in the insulating gap 240 along the third direction Z.
[0065] Optionally, the orthographic projection of at least part of the virtual electrode 250 on the substrate 100 is located within the orthographic projection of the shadow block 310 on the substrate 100, so that the light emitted by the virtual electrode 250 can continue to pass through the shadow block 310, thereby reducing the visibility risk of the virtual electrode 250.
[0066] The shape of the shadow block 310 can be polygonal, circular, elliptical, or irregular, etc. Optionally, the edge of the orthographic projection of at least part of the shadow block 310 on the substrate 100 is a curve, so that the edge shape of the shadow block 310 is more irregular, the light emitted from the shadow block 310 can be emitted in different directions, thereby better improving the visibility risk of the bridge crossing portion 230 and improving the display effect of the display panel. Optionally, the orthographic projection of the shadow block 310 on the substrate 100 is circular or elliptical, so that the shape of the shadow block is more regular and easy to be manufactured.
[0067] In some optional embodiments, the touch edge 241 comprises a first segment 241a, a second segment 241b, and a third segment 241c connecting the first segment 241a and the second segment 241b, the orthographic projection of the first segment 241a and the second segment 241b on the substrate 100 is located within the orthographic projection of the shadow block 310 on the substrate 100, and the sum of the lengths of the first segment 241a and the second segment 241b is one third to one half of the total length of the touch edge 241.
[0068] In these optional embodiments, the touch edge 241 includes the third segment 241c and the first segment 241a and the second segment 241b located at both ends of the third segment 241c and adjacent to the cross-bridge part 230. The orthographic projection of the first segment 241a and the second segment 241b on the substrate 100 is located within the orthographic projection of the shadow elimination block 310 on the substrate 100, that is, the first segment 241a and the second segment 241b are blocked by the shadow elimination block 310. The sum of the lengths of the first segment 241a and the second segment 241b is one third to one half of the total length of the touch edge 241, that is, the length of the touch edge 241 blocked by the shadow elimination block 310 accounts for one third to one half of the total length of the touch edge 241, which can improve the visual risk of the touch edge 241 due to the too small length of the blocked touch edge 241, and can also improve the problem that the distribution area of the shadow elimination block 310 is too large due to the too large length of the blocked touch edge 241, which causes the shadow elimination layer 300 to easily carry more dust and other impurities and affect the display effect of the display panel.
[0069] Optionally, the first touch electrode 210 and the second touch electrode 220 are quadrilaterals, and the first touch electrode 210 and the second touch electrode 220 each include four touch edges 241 and four top corner regions located between adjacent two touch edges 241. The top corner region is a region on the first touch electrode 210 and / or the second touch electrode 220 close to the end of the touch edge 241. Optionally, when the touch edge 241 includes the first segment 241a and the second segment 241b, an included angle region a can be formed between the first segments 241a of the two adjacent touch edges 241, or the included angle region a can be formed between the second segments 241b of the two adjacent touch edges 241.
[0070] In some optional embodiments, the orthographic projection of the included angle region a on the substrate 100 is located within the orthographic projection of the second shadow elimination block 310 on the substrate 100. By blocking the included angle region a with the shadow elimination block 310, the visual risk of the included angle region a can be reduced, and the display effect of the display panel can be further improved.
[0071] Optionally, the four included angle regions a are spaced and adjacent around the virtual center, and the orthographic projection of the four adjacent included angle regions a on the substrate 100 is located within the orthographic projection of the same shadow elimination block 310 on the substrate 100.
[0072] In these optional embodiments, the four included angle regions a close to each other are blocked by the same shadow elimination block 310, which can make the area of the shadow elimination block 310 larger on the one hand, and can reduce the difficulty of the preparation process of the shadow elimination layer 300, and on the other hand, can improve the problem that the shadow elimination block 310 cannot well block the included angle region a due to the manufacturing error.
[0073] In some alternative embodiments, two included angle regions a are arranged on both sides of the bridge portion 230 in the first direction X, and the bridge portion 230 and the two included angle regions a arranged on both sides of the bridge portion 230 are located within the same shadow block 310 in the orthographic projection of the substrate 100, so as to further improve the display effect of the display panel.
[0074] Please refer to Figure 2 , Figure 4 and Figure 5 , Figure 4 is a structural schematic diagram of a display panel provided by the first aspect of the present application, Figure 5 is Figure 4 a partial enlarged structural schematic diagram.
[0075] In some alternative embodiments, as shown in Figure 2 , Figure 4 and Figure 5 , the shadow area further includes a connecting portion 320, the connecting portion 320 extends along the third direction Z and connects two adjacent shadow blocks 310, and the orthographic projection of the insulating gap 240 and the touch control edge 241 arranged on both sides of the insulating gap 240 in the substrate 100 is located within the orthographic projection of the connecting portion 320 in the substrate 100.
[0076] In these alternative embodiments, the connecting portion 320 can shield the insulating gap 240 and the touch control edge 241, so that the light passing through the touch control edge 241 will continue to pass through the connecting portion 320, changing the exit path of the light, which can reduce the visibility risk of the touch control edge 241 and the insulating gap 240, and improve the display effect of the display panel.
[0077] Optionally, a virtual electrode 250 is further arranged in the insulating gap 240, and the orthographic projection of the virtual electrode 250 in the substrate 100 is located within the orthographic projection of the connecting portion 320 in the substrate 100, so as to further improve the display effect of the display panel.
[0078] The connecting portion 320 can be arranged in various shapes, for example, the edges of the orthographic projection of the connecting portion 320 in the substrate 100 are arranged at equal intervals with the touch control edge 241, that is, the shape of the connecting portion 320 is the same as the shape of the touch control edge 241, so that a smaller area of the connecting portion 320 can better cover the touch control edge 241.
[0079] Optionally, the distance between the edges of the orthographic projection of the connecting portion 320 in the substrate 100 and the orthographic projection of the touch control edge 241 in the substrate 100 is greater than or equal to 2 μm. It is ensured that the connecting portion 320 with a large enough area can better cover the touch control edge 241.
[0080] The touch electrode layer 200 can be arranged in various manners. Optionally, the touch electrode layer 200 includes a first conductive layer 201, a second conductive layer 202, and an insulating layer 203 between the first conductive layer 201 and the second conductive layer 202. The first touch electrode 210 and the second touch electrode 220 are arranged on the first conductive layer 201, and the cross-bridge part 230 is arranged on the second conductive layer 202. The cross-bridge part 230 is connected to the second touch electrode 220 through a via. The first touch electrode 210 and the second touch electrode 220 are arranged in the same layer, and the insulating layer 203 is arranged between the first conductive layer 201 and the second conductive layer 202 to prevent the first touch electrode 210 from being short-circuited with the cross-bridge part 230. The cross-bridge part 230 is connected to two adjacent second touch electrodes 220 through vias to connect the two adjacent second touch electrodes 220.
[0081] Optionally, when the first conductive layer 201 is arranged on the side of the second conductive layer 202 away from the substrate 100, the shadow elimination layer 300 is arranged on the side of the first conductive layer 201 away from the substrate 100, or when the second conductive layer 202 is arranged on the side of the first conductive layer 201 away from the substrate 100, the shadow elimination layer 300 is arranged on the side of the second conductive layer 202 away from the substrate 100. In this way, the shadow elimination layer 300 is always arranged on the side of the first conductive layer 201 and the second conductive layer 202 away from the substrate 100, so that the light emitted through the first conductive layer 201 and the second conductive layer 202 can continue to pass through the shadow elimination layer 300. Therefore, the shadow elimination layer 300 can improve the visual risk of the touch electrode layer 200 and improve the display effect of the display panel.
[0082] Embodiments of the second aspect of the present application also provide a display device including the display panel of any of the embodiments of the first aspect. Since the display device provided by the embodiments of the second aspect of the present application includes the display panel of any of the embodiments of the first aspect, the display device provided by the embodiments of the second aspect of the present application has the beneficial effects of the display panel of any of the embodiments of the first aspect, which will not be described herein again.
[0083] The display device in the embodiments of the present application includes, but is not limited to, a mobile phone, a personal digital assistant (PDA), a tablet computer, an e-book, a television, an access control, a smart fixed telephone, a console, and other devices with a display function.
[0084] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to the present application and equivalents thereof without departing from the scope of the present application. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A display panel, characterized by, The display panel comprises: a substrate; a touch electrode layer disposed on the substrate, the touch electrode layer comprising touch electrodes; a shadow elimination layer located on a side of the touch electrode layer away from the substrate, the shadow elimination layer comprising a shadow elimination region and a hollow region, at least part of a projection of the touch electrodes on the substrate being located within a projection of the shadow elimination region on the substrate; the touch electrodes comprising first touch electrodes and second touch electrodes, a plurality of the first touch electrodes being sequentially distributed and connected to each other along a first direction, a plurality of the second touch electrodes being spaced apart along a second direction, the touch electrodes further comprising a bridge portion connecting adjacent two of the second touch electrodes; the shadow elimination region comprising a plurality of shadow elimination blocks, the shadow elimination blocks being correspondingly arranged at connection positions of adjacent first touch electrodes and / or connection positions of adjacent second touch electrodes; the first touch electrodes and the second touch electrodes being spaced apart and forming an insulating gap extending along a third direction, the first touch electrodes and / or the second touch electrodes having a touch edge facing the insulating gap, the third direction being coplanar with the second direction and the first direction; part of the touch edge adjacent to the bridge portion is located within a projection of the shadow elimination block on the substrate. wherein the touch edge comprises a first segment, a second segment, and a third segment connecting the first segment and the second segment, projections of the first segment and the second segment on the substrate being located within projections of the shadow elimination blocks on the substrate, a sum of lengths of the first segment and the second segment being one third to one half of a total length of the touch edge.
2. The display panel of claim 1, wherein, The shadow elimination region is arranged along an edge of the touch electrode.
3. The display panel of claim 1, wherein the shadow elimination blocks are correspondingly arranged at the bridge portions.
4. The display panel of claim 1, wherein a projection of the bridge portion on the substrate is located within a projection of the shadow elimination block on the substrate.
5. The display panel of claim 1, wherein the touch electrode layer further comprises virtual electrodes located at the insulating gap, at least part of the virtual electrodes being located within a projection of the shadow elimination block on the substrate.
6. The display panel of claim 1, wherein at least part of a projection edge of the shadow elimination block on the substrate is a curve.
7. The display panel of claim 1, wherein a projection of the shadow elimination block on the substrate is circular or elliptical.
8. The display panel of claim 1, wherein a plurality of the shadow elimination blocks are spaced apart from each other, the first touch electrodes and / or the second touch electrodes comprising an included angle region between the touch edges intersectingly connected to each other, at least part of the included angle region being located within a projection of the shadow elimination block on the substrate.
9. The display panel of claim 8, wherein Four of the included angle regions are arranged adjacent to each other with intervals around the virtual center, and the orthographic projection of the four adjacent included angle regions on the substrate is located within the orthographic projection of the same shadow-eliminating block on the substrate.
10. The display panel of claim 1, wherein, the first touch electrode and the second touch electrode are spaced apart and form an insulating gap extending along a third direction, the first touch electrode and / or the second touch electrode has a touch edge facing the insulating gap, the third direction is coplanar with the second direction and the first direction; the shadow-eliminating region further comprises a connecting portion extending along a third direction and connecting two adjacent shadow-eliminating blocks, the orthographic projection of the insulating gap and the touch edges on both sides of the insulating gap on the substrate is located within the orthographic projection of the connecting portion on the substrate.
11. The display panel of claim 10, wherein, the touch electrode layer further comprises a virtual electrode located at the insulating gap, at least part of the virtual electrode is located within the orthographic projection of the connecting portion on the substrate.
12. The display panel of claim 10, wherein, the edges of the orthographic projection of the connecting portion on the substrate and the touch edges are equally spaced apart.
13. The display panel of claim 10, wherein, the distance between the edges of the orthographic projection of the connecting portion on the substrate and the orthographic projection of the touch edges on the substrate is greater than or equal to 2 μm.
14. The display panel of claim 1, wherein, the touch electrode layer comprises a first conductive layer, a second conductive layer and an insulating layer located between the first conductive layer and the second conductive layer, the first touch electrode and the second touch electrode are arranged on the first conductive layer, the cross-bridge portion is arranged on the second conductive layer, and the cross-bridge portion and the second touch electrode are connected by a via, wherein the first conductive layer is arranged on the side of the second conductive layer away from the substrate, the shadow-eliminating layer is arranged on the side of the first conductive layer away from the substrate, or the second conductive layer is arranged on the side of the first conductive layer away from the substrate, and the shadow-eliminating layer is arranged on the side of the second conductive layer away from the substrate.
15. A display device comprising: The display panel of any one of claims 1-14.
Citation Information
Patent Citations
Touch substrate and display device
CN104679340A
Touch structure, touch display device and preparation method of touch display device
CN110471568A