Touch panel and display device

Abstract

The application relates to a touch panel and a display device, comprising: a first touch conductive layer comprising a plurality of bridge electrodes; a second touch conductive layer comprising a plurality of first sub-touch electrodes, a plurality of second sub-touch electrodes, and a plurality of first connecting electrode portions; two adjacent first sub-touch electrodes in the same first touch electrode are electrically connected through a corresponding bridge electrode; two adjacent second sub-touch electrodes in the same second touch electrode are electrically connected through a first connecting electrode portion; the second touch conductive layer further comprises a dummy electrode, the dummy electrode comprises at least two dummy electrode portions and at least a dummy gap between the adjacent two dummy electrode portions, the dummy electrode portion at least partially overlaps with the corresponding bridge electrode in the thickness direction of the touch panel, and the first connecting electrode portion intersects with the dummy electrode at the dummy gap. The application can improve the appearance of the reflection of ambient light.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a touch panel and display device. Background Technology

[0002] In today's consumer electronics market, integrating touch functionality into displays has become a mainstream development trend for electronic products with display capabilities. Touch panels are already used in a variety of electronic products, such as smartphones, mobile phones, tablets, and laptops. Because users can directly operate and issue commands through objects displayed on the screen, touch panels provide a user-friendly interface between users and electronic products.

[0003] However, the related technology suffers from the problem of touch panels reflecting ambient light, resulting in poor appearance. Summary of the Invention

[0004] Therefore, it is necessary to provide a touch panel and display device to solve the problem of poor appearance caused by touch panels reflecting ambient light in related technologies.

[0005] In a first aspect, embodiments of this application provide a touch panel, including at least one first touch electrode extending along a first direction, and at least one second touch electrode extending along a second direction, wherein the first direction intersects the second direction, and the touch panel includes:

[0006] The first touch conductive layer includes multiple bridging electrodes;

[0007] A first touch insulating layer is located on one side of the first touch conductive layer. The first touch insulating layer includes a plurality of vias. The bridging electrode at least partially overlaps with the corresponding via in the thickness direction of the touch panel.

[0008] The second touch conductive layer is located on the side of the first touch insulating layer away from the first touch conductive layer;

[0009] The second touch conductive layer includes a plurality of first sub-touch electrodes, a plurality of second sub-touch electrodes, and a plurality of first connecting electrode portions, wherein the plurality of first sub-touch electrodes and the plurality of second sub-touch electrodes are arranged in an array.

[0010] The first touch electrode includes at least two first sub-touch electrodes; two adjacent first sub-touch electrodes in the same first touch electrode are electrically connected through the corresponding bridging electrode;

[0011] The second touch electrode includes at least two second sub-touch electrodes; two adjacent second sub-touch electrodes in the same second touch electrode are electrically connected through the first connecting electrode portion;

[0012] The second touch conductive layer further includes a dummy electrode, which includes at least two dummy electrode portions and at least a dummy gap located between two adjacent dummy electrode portions. The dummy electrode portions at least partially overlap with the corresponding bridging electrode in the thickness direction of the touch panel. The first connecting electrode portion intersects with the dummy electrode at the dummy gap. The dummy electrode portions are spaced apart from any of the adjacent first sub-touch electrode, the adjacent first connecting electrode portion, and the adjacent dummy electrode portion.

[0013] Secondly, based on the same application concept, embodiments of this application also provide a display device, including the touch panel described in any one of the above.

[0014] In this embodiment, the first touch conductive layer includes a plurality of bridging electrodes; the second touch conductive layer is located on the side of the first touch insulating layer away from the first touch conductive layer; wherein, the second touch conductive layer includes a plurality of first sub-touch electrodes, a plurality of second sub-touch electrodes, and a plurality of first connecting electrode portions, the plurality of first sub-touch electrodes and the plurality of second sub-touch electrodes being arranged in an array; the first touch electrode includes at least two first sub-touch electrodes; two adjacent first sub-touch electrodes in the same first touch electrode are electrically connected through corresponding bridging electrodes; the second touch electrode includes at least two second sub-touch electrodes. The second touch conductive layer includes a sub-touch electrode; two adjacent second sub-touch electrodes in the same second touch electrode are electrically connected through a first connecting electrode portion; the second touch conductive layer also includes a dummy electrode, which includes at least two dummy electrode portions and at least a dummy gap located between two adjacent dummy electrode portions. The dummy electrode portions at least partially overlap with the corresponding bridging electrode in the thickness direction of the touch panel. The first connecting electrode portion intersects with the dummy electrode at the dummy gap. The dummy electrode portions are spaced apart from any of the adjacent first sub-touch electrodes, adjacent first connecting electrode portions, and adjacent dummy electrode portions. That is, the side of the second touch conductive layer away from the first touch insulating layer is the light-emitting side or the side facing the human eye. When the touch panel / display panel does not display an image or the touch panel is in a dark state, the light-emitting side or the side facing the human eye of the display panel / touch panel presents the color of its reflected ambient light, which is mainly affected by the color of the ambient light reflected by the second touch conductive layer. In this embodiment, a dummy electrode formed by patterning the second touch conductive layer is provided at the bridging electrode. Firstly, the dummy electrode reduces or eliminates the color difference in ambient light reflection between the bridging electrode and other parts, thus ensuring uniform color when the display panel / touch panel is not displaying an image or when the touch panel is in a dark state. For example, when the display panel / touch panel is not displaying an image or the touch panel is in a dark state, it improves or avoids dark spots caused by low reflectivity at the bridging electrode, especially under strong ambient light, where the effect of improving or avoiding dark spot problems is significant. Secondly, the dummy electrode part at least partially overlaps with the corresponding bridging electrode in the thickness direction of the touch panel, and the setting of the dummy electrode is as consistent as possible with the bridging electrode, improving or compensating for the uneven reflection of ambient light caused by the bridging electrode. Thirdly, the first connecting electrode intersects with the dummy electrode at a dummy notch. The dummy electrode is spaced apart from any of the adjacent first sub-touch electrode, the adjacent first connecting electrode, and the adjacent dummy electrode, so that the dummy electrode is floating. The dummy electrode will not be electrically connected to the adjacent first sub-touch electrode and the adjacent first connecting electrode, thereby avoiding the dummy electrode from affecting the touch performance and improving the touch performance of the touch panel / display panel. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a top view schematic diagram of a first type of touch panel provided in an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of a first partial structure of a first type of touch panel provided in an embodiment of this application.

[0018] Figure 3 This is a schematic diagram of a second part of the structure of the first type of touch panel provided in the embodiments of this application.

[0019] Figure 4 This is a partial cross-sectional schematic diagram of a touch panel provided in an embodiment of this application.

[0020] Figure 5 This is a top view schematic diagram of a second type of touch panel provided in an embodiment of this application.

[0021] Figure 6 This is a schematic diagram of the first part of the structure of the second type of touch panel provided in the embodiments of this application.

[0022] Figure 7 This is a schematic diagram of a second part of the structure of a second type of touch panel provided in an embodiment of this application.

[0023] Figure 8 This is a schematic diagram of the third part of the structure of the second type of touch panel provided in the embodiments of this application.

[0024] Figure 9 This is a schematic diagram of a display device provided in an embodiment of this application.

[0025] Explanation of reference numerals in the drawings: Display device 200; Touch panel 100; First touch electrode 19T1; Second touch electrode 19R2; First sub-touch electrode 19T11; Second sub-touch electrode 19R21; First connecting electrode portion 19L1; Bridging electrode 171; Dummy electrode 19X1; Dummy electrode portion 19X11; Dummy notch 19X12;

[0026] Substrate 11; Light-emitting functional layer 13; Pixel definition layer 12; Encapsulation layer 14; Second touch insulating layer 16; First touch conductive layer 17; First touch insulating layer 18; Second touch conductive layer 19; Third touch insulating layer 20; Via 181; Light-emitting device 131; Pixel definition structure 121; Pixel opening 122; First grid electrode W1; Dummy grid electrode WX1; Second grid electrode W2; First channel W31; Floating electrode W32; Break W33; First direction X; Second direction Y; Third direction Z; First center line ZL1; Second center line ZL2; First width d1; Second width d2; Third width d3. Detailed Implementation

[0027] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] When describing positional relationships, unless otherwise specified, when an element, such as a layer, film, or substrate, is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements present. Furthermore, when a layer is referred to as being "below" another layer, it may be directly below it or there may be one or more intermediate elements present. It is also understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or there may be one or more intermediate elements present.

[0030] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0031] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0032] It should also be understood that, in interpreting an element, although not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of a particular value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0033] Furthermore, in the instruction manual, the phrase "planar distribution diagram" refers to the diagram when the target part is viewed from above, and the phrase "cross-sectional diagram" refers to the diagram when the target part is viewed from the side as a cross-section taken by vertically cutting the target part.

[0034] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0035] Related technologies suffer from the problem of touch panels reflecting ambient light, resulting in poor appearance. The touch panel may include a first touch conductive layer, a first touch insulating layer, and a second touch conductive layer stacked together; the second touch conductive layer is located on the side of the first touch insulating layer away from the first touch conductive layer; the first touch conductive layer includes multiple bridging electrodes; the second touch conductive layer includes multiple first sub-touch electrodes, multiple second sub-touch electrodes, and multiple first connecting electrode portions, with the multiple first sub-touch electrodes and multiple second sub-touch electrodes arranged in an array; each first touch electrode includes at least two first sub-touch electrodes; adjacent first sub-touch electrodes of the same first touch electrode are electrically connected through corresponding bridging electrodes; each second touch electrode includes at least two second sub-touch electrodes; adjacent second sub-touch electrodes of the same second touch electrode are electrically connected through first connecting electrode portions. The side of the second touch conductive layer furthest from the first touch insulating layer is the light-emitting side or the side facing the human eye. When the touch panel does not display an image or is in a dark state, the display panel / touch panel reflects the ambient light on the light-emitting side or the side facing the human eye. This is mainly affected by the color of the ambient light reflected by the second touch conductive layer. However, at the bridging electrode, the side of the bridging electrode closest to the second touch conductive layer lacks the electrode portion formed by the patterned second touch conductive layer. This causes the color of the ambient light reflected at the bridging electrode to differ from that at other locations. This results in uneven color when the display panel / touch panel does not display an image or is in a dark state. For example, when the display panel / touch panel does not display an image or is in a dark state, there are dark spots at the bridging electrode due to low reflectivity. These dark spots are more easily observed, especially under strong ambient light.

[0036] Based on the aforementioned technical problems, the inventors discovered that the first touch conductive layer includes multiple bridging electrodes; the second touch conductive layer is located on the side of the first touch insulating layer away from the first touch conductive layer; wherein, the second touch conductive layer includes multiple first sub-touch electrodes, multiple second sub-touch electrodes, and multiple first connecting electrode portions, and the multiple first sub-touch electrodes and multiple second sub-touch electrodes are arranged in an array; the first touch electrode includes at least two first sub-touch electrodes; two adjacent first sub-touch electrodes in the same first touch electrode are electrically connected through corresponding bridging electrodes; the second touch electrode includes at least Two second sub-touch electrodes; two adjacent second sub-touch electrodes in the same second touch electrode are electrically connected through a first connecting electrode portion; the second touch conductive layer also includes dummy electrodes, each dummy electrode including at least two dummy electrode portions and at least a dummy gap located between two adjacent dummy electrode portions. The dummy electrode portions at least partially overlap with the corresponding bridging electrode in the thickness direction of the touch panel. The first connecting electrode portion intersects with the dummy electrode at the dummy gap. The dummy electrode portions are spaced apart from any of the adjacent first sub-touch electrodes, adjacent first connecting electrode portions, and adjacent dummy electrode portions. That is, the side of the second touch conductive layer away from the first touch insulating layer is the light-emitting side or the side facing the human eye. When the touch panel / display panel does not display an image or the touch panel is in a dark state, the light-emitting side or the side facing the human eye of the display panel / touch panel presents the color of its reflected ambient light, which is mainly affected by the color of the ambient light reflected by the second touch conductive layer. In this embodiment, a dummy electrode formed by patterning the second touch conductive layer is provided at the bridging electrode. Firstly, the dummy electrode reduces or eliminates the color difference in ambient light reflection between the bridging electrode and other parts, thus ensuring uniform color when the display panel / touch panel is not displaying an image or when the touch panel is in a dark state. For example, when the display panel / touch panel is not displaying an image or the touch panel is in a dark state, it improves or avoids dark spots caused by low reflectivity at the bridging electrode, especially under strong ambient light, where the effect of improving or avoiding dark spot problems is significant. Secondly, the dummy electrode part at least partially overlaps with the corresponding bridging electrode in the thickness direction of the touch panel, and the setting of the dummy electrode is as consistent as possible with the bridging electrode, improving or compensating for the uneven reflection of ambient light caused by the bridging electrode. Thirdly, the first connecting electrode intersects with the dummy electrode at a dummy notch. The dummy electrode is spaced apart from any of the adjacent first sub-touch electrode, the adjacent first connecting electrode, and the adjacent dummy electrode, so that the dummy electrode is floating. The dummy electrode will not be electrically connected to the adjacent first sub-touch electrode and the adjacent first connecting electrode, thereby avoiding the dummy electrode from affecting the touch performance and improving the touch performance of the touch panel / display panel.

[0037] The above is the core idea of ​​this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0038] Please see Figures 1 to 8 . Figure 1 This is a top view schematic diagram of a first type of touch panel provided in an embodiment of this application. Figure 2 This is a schematic diagram of a first partial structure of a first type of touch panel provided in an embodiment of this application. Figure 3 This is a schematic diagram of a second partial structure of the first type of touch panel provided in an embodiment of this application. Figure 1 compared to, Figure 2 The bridging electrodes are not shown in the diagram. Figure 3 The second touch electrode and the dummy electrode are not shown in the diagram.

[0039] Figure 4 This is a partial cross-sectional schematic diagram of a touch panel provided in an embodiment of this application.

[0040] Figure 5 This is a top view schematic diagram of a second type of touch panel provided in an embodiment of this application. Figure 6 This is a schematic diagram of the first part of the structure of the second type of touch panel provided in the embodiments of this application. Figure 7 This is a schematic diagram of a second part of the structure of a second type of touch panel provided in an embodiment of this application. Figure 8 This is a schematic diagram of the third part of the structure of the second type of touch panel provided in an embodiment of this application. Figure 5 compared to, Figure 6 The first touch electrode and the dummy electrode are not shown in the diagram. Figure 7 The second touch electrode and the dummy electrode are not shown in the diagram. Figure 8 The second touch electrode and bridging electrode are not shown in the diagram.

[0041] Figure 4 for Figures 1 to 3 A schematic diagram of a partial cross-sectional structure or film layer structure of the first type of touch panel in China. Figure 4 Also for Figures 5 to 8 A schematic diagram of a partial cross-sectional structure or film layer structure of the second type of touch panel.

[0042] This application provides a touch panel 100, which includes at least one first touch electrode 19T1 extending along a first direction X, and at least one second touch electrode 19R2 extending along a second direction Y, wherein the first direction X and the second direction Y intersect. The touch panel 100 includes a first touch conductive layer 17, a first touch insulating layer 18, and a second touch conductive layer 19. The first touch conductive layer 17 includes a plurality of bridging electrodes 171. The first touch insulating layer 18 is located on one side of the first touch conductive layer 17 and includes a plurality of vias 181. The bridging electrodes 171 at least partially overlap with corresponding vias 181 in the thickness direction of the touch panel 100. The second touch conductive layer 19 is located on the side of the first touch insulating layer 18 away from the first touch conductive layer 17. The second touch conductive layer 19 includes multiple first sub-touch electrodes 19T11, multiple second sub-touch electrodes 19R21, and multiple first connecting electrode portions 19L1. The multiple first sub-touch electrodes 19T11 and multiple second sub-touch electrodes 19R21 are arranged in an array. Each first touch electrode 19T1 includes at least two first sub-touch electrodes 19T11. Two adjacent first sub-touch electrodes 19T11 within the same first touch electrode 19T1 are electrically connected through corresponding bridging electrodes 171. Each second touch electrode 19R2 includes at least two second sub-touch electrodes 19R21. Two adjacent second sub-touch electrodes 19R21 within the same second touch electrode 19R2 are electrically connected through a first connecting electrode portion 19L1. The connecting electrode portion 19L1 is electrically connected; the second touch conductive layer 19 also includes a dummy electrode 19X1, the dummy electrode 19X1 includes at least two dummy electrode portions 19X11, and a dummy notch 19X12 located at least between two adjacent dummy electrode portions 19X11. The dummy electrode portions 19X11 at least partially overlap with the corresponding bridging electrode 171 in the thickness direction of the touch panel 100. The first connecting electrode portion 19L1 intersects with the dummy electrode 19X1 at the dummy notch 19X12. The dummy electrode portion 19X11 is spaced apart from any of the adjacent first sub-touch electrode 19T11, the adjacent first connecting electrode portion 19L1, and the adjacent dummy electrode portion 19X11.

[0043] For example, such as Figure 4 As shown, the touch panel 100 may include a substrate 11, a light-emitting functional layer 13, a pixel definition layer 12, an encapsulation layer 14, and a touch functional layer stacked together. However, the structure of the touch panel 100 is not limited to this. For example, the touch panel 100 may not display an image, in which case the touch panel 100 may not include the light-emitting functional layer 13, the pixel definition layer 12, and the encapsulation layer 14; for example, the touch panel 100 may display an image, in which case the touch panel 100 may include, but is not limited to, the light-emitting functional layer 13, the pixel definition layer 12, and the encapsulation layer 14, and the relative positional relationship of the light-emitting functional layer 13, the pixel definition layer 12, and the encapsulation layer 14 in the touch panel 100 is not limited to this. Figure 4As shown.

[0044] For example, such as Figure 4 As shown, the touch functional layer includes a second touch insulating layer 16, a first touch conductive layer 17, a first touch insulating layer 18, a second touch conductive layer 19, and a third touch insulating layer 20 stacked together. The first touch conductive layer 17 is disposed on the side of the second touch insulating layer 16 away from the substrate 11. However, the structure of the touch functional layer is not limited to this. For example, the touch functional layer may not include at least one of the second touch insulating layer 16 and the third touch insulating layer 20.

[0045] For example, the side of the second touch conductive layer 19 away from the first touch insulating layer 18 or the substrate 11 is the light-emitting side or the side facing the human eye.

[0046] For example, the light-emitting functional layer 13 may include a plurality of light-emitting devices 131, and the pixel definition layer 12 may include a pixel definition structure 121 (the pixel definition structure 121 is a spacer) and a pixel opening 122 surrounded by the pixel definition structure 121, wherein the light-emitting devices 131 are at least partially located within the pixel opening 122.

[0047] For example, in some embodiments, the light-emitting device 131 may include a first electrode, a light-emitting material layer, and a second electrode sequentially stacked in a third direction Z. The first electrode is disposed on one side of the substrate 11, the pixel definition structure 121 is located on the side of the first electrode away from the substrate 11, the pixel opening 122 exposes the first electrode, the light-emitting material layer is at least partially located within the pixel opening 122, and the second electrode is disposed on the side of the pixel definition structure 121 and the light-emitting material layer away from the substrate 11. However, the structure of the touch panel 100, the light-emitting functional layer 13, and the pixel definition layer 12 is not limited to this.

[0048] For example, such as Figure 1 , Figure 4 and Figure 5 As shown, the first direction X intersects the second direction Y, and the first direction X and the second direction Y can be perpendicular to each other. Both the first direction X and the second direction Y are parallel to the plane where the base 11 is located. The third direction Z is perpendicular to the plane where the base 11 is located, and the third direction Z is also the thickness direction of the touch panel.

[0049] For example, the touch panel 100 can be a liquid crystal display panel (LCD) with touch function, an organic light-emitting display panel (OLED) with touch function, etc., but is not limited to this. For example, the touch panel 100 may only include touch function and not display function.

[0050] For example, two adjacent first sub-touch electrodes 19T11 in the same first touch electrode 19T1 are electrically connected through a corresponding bridging electrode 171. That is, the first touch electrode 19T1 includes first sub-touch electrodes 19T11 and bridging electrodes 171 that are alternately electrically connected in the first direction X.

[0051] For example, two adjacent second sub-touch electrodes 19R21 in the same second touch electrode 19R2 are electrically connected through a first connecting electrode portion 19L1. That is, the second touch electrode 19R2 includes second sub-touch electrodes 19R21 and a first connecting electrode portion 19L1 that are alternately electrically connected in a second direction.

[0052] For example, the second touch conductive layer 19 is patterned to form dummy electrodes 19X1. The first connecting electrode portion 19L1 intersects the dummy electrode 19X1 at a dummy notch 19X12, such that the first connecting electrode portion 19L1 and the dummy electrode portion 19X11 are spaced apart / insulated. The dummy electrode portion 19X11 is spaced apart from any of the adjacent first sub-touch electrode 19T11, the adjacent first connecting electrode portion 19L1, and the adjacent dummy electrode portion 19X11, so that the dummy electrode portion 19X11 is not electrically connected to the adjacent first sub-touch electrode 19T11 and the adjacent first connecting electrode portion 19L1. The dummy electrode portion 19X11 is floating, and therefore is not electrically connected to the adjacent first sub-touch electrode 19T11 and the adjacent first connecting electrode portion 19L1, thereby preventing the dummy electrode portion 19X11 from affecting touch performance and improving the touch performance of the touch panel 100 / display panel.

[0053] For example, the dummy electrode 19X1 includes at least two dummy electrode portions 19X11 and a dummy gap 19X12 located at least between two adjacent dummy electrode portions 19X11. The dummy gap 19X12 may be located between two adjacent dummy electrode portions 19X11, between the dummy electrode portion 19X11 and the second sub-touch electrode 19R21, or between the dummy electrode portion 19X11 and the first connecting electrode portion 19L1.

[0054] In this embodiment, the first touch conductive layer 17 includes a plurality of bridging electrodes 171; the second touch conductive layer 19 includes a plurality of first sub-touch electrodes 19T11, a plurality of second sub-touch electrodes 19R21, and a plurality of first connecting electrode portions 19L1, wherein the plurality of first sub-touch electrodes 19T11 and the plurality of second sub-touch electrodes 19R21 are arranged in an array; the first touch electrode 19T1 includes at least two first sub-touch electrodes 19T11, and two adjacent first sub-touch electrodes 19T11 in the same first touch electrode 19T1 are electrically connected through corresponding bridging electrodes 171; the second touch electrode 19R2 includes at least two second sub-touch electrodes 19R21, and two adjacent second sub-touch electrodes 19R21 in the same second touch electrode 19R2 are electrically connected through corresponding bridging electrodes 171. The touch electrode 19R21 is electrically connected through the first connecting electrode portion 19L1; the second touch conductive layer 19 also includes a dummy electrode 19X1, which includes at least two dummy electrode portions 19X11 and a dummy notch 19X12 located at least between two adjacent dummy electrode portions 19X11. The dummy electrode portions 19X11 at least partially overlap with the corresponding bridging electrode 171 in the thickness direction of the touch panel 100. The first connecting electrode portion 19L1 intersects with the dummy electrode 19X1 at the dummy notch 19X12. The dummy electrode portion 19X11 is spaced apart from any of the adjacent first sub-touch electrode 19T11, the adjacent first connecting electrode portion 19L1, and the adjacent dummy electrode portion 19X11. That is, the side of the second touch conductive layer 19 away from the first touch insulating layer 18 is the light-emitting side or the side facing the human eye. When the touch panel 100 / display panel does not display an image or the touch panel 100 is in a dark state, the light-emitting side or the side facing the human eye of the display panel / touch panel 100 presents the color of the ambient light it reflects, which is mainly affected by the color of the ambient light reflected by the second touch conductive layer 19. In this embodiment, a dummy electrode 19X1 formed by patterning the second touch conductive layer 19 is provided at the bridging electrode 171. Firstly, the dummy electrode 19X1 reduces or eliminates the difference in color of reflected ambient light between the bridging electrode 171 and other parts, thereby making the color uniform when the display panel / touch panel 100 is not displaying an image or when the touch panel 100 is in a dark state. For example, when the display panel / touch panel 100 is not displaying an image or when the touch panel 100 is in a dark state, it improves or avoids dark spots caused by low reflectivity at the bridging electrode 171, especially under strong ambient light, the effect of improving or avoiding dark spot problems is significant. Secondly, the dummy electrode portion 19X11 at least partially overlaps with the corresponding bridging electrode 171 in the thickness direction of the touch panel 100, and the setting of the dummy electrode 19X1 is as consistent as possible with the bridging electrode 171, improving or compensating for the uneven reflection of ambient light caused by the bridging electrode 171.Thirdly, the first connecting electrode portion intersects with the dummy electrode 19X1 at the dummy notch 19X12. The dummy electrode portion 19X11 is spaced apart from any of the adjacent first sub-touch electrode 19T11, the adjacent first connecting electrode portion 19L1, and the adjacent dummy electrode portion 19X11, so that the dummy electrode portion 19X11 is floating. The dummy electrode portion 19X11 will not be electrically connected to the adjacent first sub-touch electrode 19T11 and the adjacent first connecting electrode portion 19L1, thereby avoiding the dummy electrode portion 19X11 from affecting the touch performance and improving the touch performance of the touch panel 100 / display panel.

[0055] In some implementations, such as Figure 2 and Figure 3 As shown, or as Figure 7 and Figure 8 As shown, the shape of the dummy electrode 19X1 is the same as that of the bridging electrode 171.

[0056] For example, such as Figure 2 and Figure 3 As shown, or as Figure 7 and Figure 8 As shown, the shape of the dummy electrode 19X1 is the same as that of the bridging electrode 171. That is, the shape and outline of the dummy electrode 19X1 are the same as those of the bridging electrode 171. The shape of the dummy electrode 19X1 is set to be as consistent as possible with the shape of the bridging electrode 171, which improves or compensates for the uneven reflection of ambient light caused by the bridging electrode 171.

[0057] In some implementations, such as Figure 2 and Figure 3 As shown, both the bridging electrode 171 and the dummy electrode 19X1 are strip-shaped; or, as... Figure 7 and Figure 8 As shown, both the bridging electrode 171 and the dummy electrode 19X1 are in the form of a mesh.

[0058] For example, such as Figure 2 and Figure 3 As shown, both the bridging electrode 171 and the dummy electrode 19X1 are strips of the same shape.

[0059] For example, such as Figure 7 and Figure 8 As shown, both the bridging electrode 171 and the dummy electrode 19X1 are mesh-like in shape.

[0060] In some implementations, such as Figure 2 and Figure 3As shown, taking the first type of touch panel as an example, the center line of the bridging electrode 171 in its extension direction is the first center line ZL1, and the center line of the dummy electrode 19X1 in its extension direction is the second center line ZL2; the orthographic projection of the first center line ZL1 on the first touch insulating layer 18 and the orthographic projection of the second center line ZL2 on the first touch insulating layer 18 are parallel or overlap; the distance between the orthographic projection of the first center line ZL1 on the first touch insulating layer 18 and the orthographic projection of the second center line ZL2 on the first touch insulating layer 18 is less than or equal to 1.2 micrometers.

[0061] For example, the distance between the orthographic projection of the first center line ZL1 onto the first touch insulating layer 18 and the orthographic projection of the second center line ZL2 onto the first touch insulating layer 18 can be any value among 1.2 micrometers, 1 micrometer, 0.8 micrometers, 0.6 micrometers, 0.4 micrometers, 0.2 micrometers, and 0 micrometers. This ensures that when the dummy electrode 19X1 improves or compensates for the uneven reflection of ambient light caused by the bridging electrode 171, the dummy electrode 19X1 is positioned as close as possible to or overlap with the bridging electrode 171, thereby better improving or compensating for the uneven reflection of ambient light caused by the bridging electrode 171. Simultaneously, in the third direction Z, the dummy electrode 19X1 should cover the bridging electrode 171 as much as possible to prevent the bridging electrode 171 from reflecting a small amount of light of different colors through the first touch insulating layer 18.

[0062] In some implementations, such as Figures 5 to 8 As shown, both the first connecting electrode portion 19L1 and the dummy electrode 19X1 are in the form of a grid. The first connecting electrode portion 19L1 includes a first grid electrode W1, and the dummy electrode 19X1 includes a dummy grid electrode WX1. The dummy grid electrode WX1 includes a plurality of dummy electrode portions 19X11 and a dummy gap 19X12 located at least between two adjacent dummy electrode portions 19X11. The ratio of the width of the first grid electrode W1 to the width of the dummy electrode portion 19X11 is 0.85-1.15.

[0063] For example, such as Figures 5 to 8As shown, the width of the first grid electrode W1 is a first width d1, and the width of the dummy electrode portion 19X11 is a second width d2. The ratio of the first width d1 to the second width d2 is 0.85-1.15, and the ratio can be any value among 0.85, 0.95, 1, 1.05, 1.1, and 1.15. In some embodiments, the first connecting electrode portion 19L1 / first grid electrode W1 extends entirely along the second direction Y, and the dummy electrode 19X1 / dummy grid electrode WX1 extends entirely along the first direction X. With this arrangement, the pattern of the touch panel 100 / second touch conductive layer 19 can be uniformly distributed near the bridging electrode 171, so that the touch panel 100 / second touch conductive layer 19 uniformly reflects ambient light at this location and in both the first direction X and the second direction Y.

[0064] In some implementations, such as Figures 5 to 8 As shown, the width of the dummy electrode portion 19X11 is greater than the width of the first grid electrode W1, and the areas of the first connecting electrode portion 19L1 and the dummy electrode 19X1 are equal.

[0065] For example, due to the existence of the dummy notch 19X12, the second width d2 is set to be greater than the first width d1, so that the area of ​​the first connecting electrode portion 19L1 and the dummy electrode 19X1 are equal, and the touch panel 100 / second touch conductive layer 19 reflects ambient light more uniformly at this location and in the first direction X and the second direction Y.

[0066] In some implementations, such as Figures 5 to 8 As shown, both the first sub-touch electrode 19T11 and the dummy electrode 19X1 are in the form of a grid. The first sub-touch electrode 19T11 includes a second grid electrode W2, and the dummy electrode 19X1 includes a dummy grid electrode WX1. The dummy grid electrode WX1 includes a plurality of dummy electrode portions 19X11 and a dummy gap 19X12 between two adjacent dummy electrode portions 19X11. The ratio of the width of the second grid electrode W2 to the width of the dummy electrode portion 19X11 is 0.85-1.15.

[0067] For example, such as Figure 8As shown, the width of the dummy electrode portion 19T11 is the second width d2, and the width of the second grid electrode W2 is the third width d3. The ratio of the third width d3 to the second width d2 is 0.85-1.15. The ratio of the third width d3 to the second width d2 can be any value among 0.85, 0.95, 1, 1.05, 1.1, and 1.15. In some embodiments, the first sub-touch electrode 19T11 / second grid electrode W2 extends entirely along the first direction X, and the dummy electrode 19X1 / dummy grid electrode WX1 extends entirely along the first direction X. With this arrangement, no sudden change in reflectivity of reflected ambient light occurs when the first sub-touch electrode 19T11 / second grid electrode W2 transitions to the dummy electrode 19X1 / dummy grid electrode WX1, thus avoiding reflected dark spots.

[0068] In some implementations, such as Figures 5 to 8 As shown, both the first connecting electrode portion 19L1 and the bridging electrode 171 are in the form of a grid. The first connecting electrode portion 19L1 includes a first grid electrode W1, and the bridging electrode 171 includes a third grid electrode W3. The third grid electrode W3 includes at least one first channel W31 electrically connecting two adjacent first touch electrodes 19T1, at least one floating electrode W32, and a break W33 located at both ends of the floating electrode W32. The floating electrode W32 is disconnected from other parts of the third grid electrode W3 through the break W33. The floating electrode W32 overlaps with the corresponding first grid electrode W1 in the thickness direction of the touch panel 100.

[0069] For example, the floating electrode W32 is disconnected from other parts of the third grid electrode W3 through the break W33, so that the floating electrode is floating (i.e., not supplied with electrical signals). The floating electrode W32 overlaps with the corresponding first grid electrode W1 in the thickness direction of the touch panel 100, thereby reducing the overlap area and parasitic capacitance between the first connecting electrode portion 19L1 and the bridging electrode 171, thereby improving the speed of touch electrical signal transmission and improving touch performance.

[0070] In some embodiments, one of the first touch electrode 19T1 and the second touch electrode 19R2 is a touch driving electrode, and the other of the first touch electrode 19T1 and the second touch electrode 19R2 is a touch sensing electrode.

[0071] For example, the touch driving electrode is the Tx electrode (driving electrode), and the touch sensing electrode is the Rx electrode (sensing electrode).

[0072] In some implementations, such as Figure 4As shown, the touch panel 100 includes a plurality of light-emitting devices 131 and a spacer (the pixel definition structure 121 is the spacer) located between two adjacent light-emitting devices 131. The first touch conductive layer 17, the first touch insulating layer 18 and the second touch conductive layer 19 are all located on one side of the plurality of light-emitting devices 131 and the spacer. The orthographic projections of the first touch electrode 19T1 and the second touch electrode 19R2 on the plane where the spacer is located are both located within the range of the spacer.

[0073] For example, the first touch conductive layer 17, the first touch insulating layer 18, and the second touch conductive layer 19 are all located on the side of the plurality of light-emitting devices 131 and the spacer portion away from the substrate 11. The orthographic projections of the first touch electrode 19T1 and the second touch electrode 19R2 on the plane where the spacer portion is located are both within the range of the spacer portion, so that neither the first touch electrode 19T1 nor the second touch electrode 19R2 will block the light emission of the light-emitting device 131.

[0074] Please see Figure 9 , Figure 9 This is a schematic diagram of a display device provided for some embodiments of this application.

[0075] Secondly, based on the same concept, this application also provides a display device 200, which includes a touch panel 100 of any of the above features, or a touch panel 100 combining any of the above features.

[0076] For example, the display device 200 also has the beneficial effects of the touch panel 100 in the above embodiments. The similarities can be understood by referring to the explanation of the touch panel 100 above, and will not be repeated below.

[0077] For example, the display device 200 provided in the embodiments of this application can be Figure 9 The mobile phone shown can also be any electronic product with display function, including but not limited to the following categories: television, laptop, desktop monitor, tablet, digital camera, smart bracelet, smart glasses, vehicle display, industrial control equipment, medical display, touch interactive terminal, etc. This application embodiment does not make any special limitation in this regard.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A touch panel, characterized in that, The touch panel includes at least one first touch electrode extending along a first direction and at least one second touch electrode extending along a second direction, the first direction intersecting the second direction. The first touch conductive layer includes multiple bridging electrodes; A first touch insulating layer is located on one side of the first touch conductive layer. The first touch insulating layer includes a plurality of vias. The bridging electrode at least partially overlaps with the corresponding via in the thickness direction of the touch panel. The second touch conductive layer is located on the side of the first touch insulating layer away from the first touch conductive layer; The second touch conductive layer includes a plurality of first sub-touch electrodes, a plurality of second sub-touch electrodes, and a plurality of first connecting electrode portions, wherein the plurality of first sub-touch electrodes and the plurality of second sub-touch electrodes are arranged in an array. The first touch electrode includes at least two first sub-touch electrodes; two adjacent first sub-touch electrodes in the same first touch electrode are electrically connected through the corresponding bridging electrode; The second touch electrode includes at least two second sub-touch electrodes; two adjacent second sub-touch electrodes in the same second touch electrode are electrically connected through the first connecting electrode portion; The second touch conductive layer further includes a dummy electrode, which includes at least two dummy electrode portions and at least a dummy gap located between two adjacent dummy electrode portions. The dummy electrode portions at least partially overlap with the corresponding bridging electrode in the thickness direction of the touch panel. The first connecting electrode portion intersects with the dummy electrode at the dummy gap. The dummy electrode portions are spaced apart from any of the adjacent first sub-touch electrode, the adjacent first connecting electrode portion, and the adjacent dummy electrode portion.

2. The touch panel according to claim 1, characterized in that, The shape of the dummy electrode is the same as that of the bridging electrode.

3. The touch panel according to claim 2, characterized in that, Both the bridging electrode and the dummy electrode are strip-shaped; or, Both the bridging electrode and the dummy electrode are in the form of a grid.

4. The touch panel according to claim 1, characterized in that, The centerline of the bridging electrode in its extension direction is the first centerline, and the centerline of the dummy electrode in its extension direction is the second centerline. The orthographic projection of the first center line onto the first touch insulating layer is parallel to or overlaps with the orthographic projection of the second center line onto the first touch insulating layer; The distance between the orthographic projection of the first center line on the first touch insulating layer and the orthographic projection of the second center line on the first touch insulating layer is less than or equal to 1.2 micrometers.

5. The touch panel according to claim 1, characterized in that, Both the first connecting electrode portion and the dummy electrode are mesh-shaped; The first connecting electrode portion includes a first grid electrode, the dummy electrode includes a dummy grid electrode, the dummy grid electrode includes a plurality of dummy electrode portions and a dummy gap between two adjacent dummy electrode portions, and the ratio of the width of the first grid electrode to the width of the dummy electrode portion is 0.85-1.

15.

6. The touch panel according to claim 5, characterized in that, The width of the dummy electrode portion is greater than the width of the first grid electrode, and the areas of the first connecting electrode portion and the dummy electrode are equal.

7. The touch panel according to claim 1, characterized in that, Both the first sub-touch electrode and the dummy electrode are grid-shaped; The first sub-touch electrode includes a second grid electrode, the dummy electrode includes a dummy grid electrode, the dummy grid electrode includes a plurality of dummy electrode portions and a dummy gap between two adjacent dummy electrode portions, and the ratio of the width of the second grid electrode to the width of the dummy electrode portion is 0.85-1.

15.

8. The touch panel according to claim 1, characterized in that, Both the first connecting electrode portion and the bridging electrode are in a mesh shape; The first connecting electrode portion includes a first grid electrode, and the bridging electrode includes a third grid electrode; The third grid electrode includes at least one first channel electrically connecting two adjacent first sub-touch electrodes, at least one floating electrode, and breaks located at both ends of the floating electrode. The floating electrode is disconnected from other parts of the third grid electrode through the breaks, and the floating electrode overlaps with the corresponding first grid electrode in the thickness direction of the touch panel.

9. The touch panel according to claim 1, characterized in that, One of the first touch electrode and the second touch electrode is a touch driving electrode, and the other of the first touch electrode and the second touch electrode is a touch sensing electrode; and / or, The touch panel includes multiple light-emitting devices and a spacer between two adjacent light-emitting devices. The first touch conductive layer, the first touch insulating layer, and the second touch conductive layer are all located on one side of the multiple light-emitting devices and the spacer. The orthographic projections of the first touch electrode and the second touch electrode on the plane where the spacer is located are both located within the range of the spacer.

10. A display device, characterized in that, Including the touch panel as described in any one of claims 1 to 9.

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