CN114296576A

CN114296576A - Touch substrate and display device

Info

Publication number: CN114296576A
Application number: CN202111649178.5A
Authority: CN
Inventors: 程海涛; 李盛义; 刘乾乾; 毕鑫
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-04-08

Abstract

The application provides a touch substrate and a display device. The touch substrate comprises a touch area, and at least part of the edge of the touch area is arc-shaped; the touch substrate comprises a substrate and a touch layer positioned on the substrate, wherein the touch layer is positioned in a touch area; the touch layer comprises a plurality of touch electrodes which are arranged at intervals; the plurality of touch electrodes are arranged into a plurality of first electrode groups extending in a first direction and a plurality of second electrode groups extending in a second direction, the first direction intersecting the second direction; the first electrode group comprises a plurality of first touch electrodes, and adjacent first touch electrodes in the same first electrode group are electrically connected; the second electrode group comprises a plurality of second touch control electrodes, and adjacent second touch control electrodes in the same second electrode group are electrically connected; the areas of the touch electrodes far away from the arc-shaped edge in the plurality of touch electrodes are equal and are all first areas, the area of the touch electrode in contact with the arc-shaped edge is a second area, and the second area is larger than or equal to half of the first area.

Description

Touch substrate and display device

Technical Field

The application relates to the technical field of touch display, in particular to a touch substrate and a display device.

Background

With the development of touch display technology, capacitive touch display screens have been widely used in Organic Light Emitting Diode (OLED) display devices.

The area of the touch electrode, close to the special-shaped edge, of the special-shaped touch display panel is small, the capacitance value of the touch electrode is small, and therefore the touch precision of the special-shaped touch display panel, close to the special-shaped edge, is low.

Disclosure of Invention

A first aspect of an embodiment of the present application provides a touch substrate. The touch substrate comprises a touch area, and at least part of the edge of the touch area is arc-shaped; the touch substrate comprises a substrate and a touch layer positioned on the substrate, and the touch layer is positioned in the touch area;

the touch layer comprises a plurality of touch electrodes which are arranged at intervals; the plurality of touch electrodes are arranged as a plurality of first electrode groups extending in a first direction and a plurality of second electrode groups extending in a second direction, the first direction intersecting the second direction; the first electrode group comprises a plurality of first touch electrodes, and adjacent first touch electrodes in the same first electrode group are electrically connected; the second electrode group comprises a plurality of second touch electrodes, and adjacent second touch electrodes in the same second electrode group are electrically connected; the areas of the touch electrodes far away from the arc-shaped edge in the plurality of touch electrodes are equal and are all first areas, the area of the touch electrode in contact with the arc-shaped edge is a second area, and the second area is larger than or equal to half of the first area.

In one embodiment, the edges of the touch area include a first arc-shaped edge, the first touch electrodes at the same end of a plurality of adjacent first electrode groups are in contact with the first arc-shaped edge, a vertex of at least one first touch electrode in the plurality of first touch electrodes in contact with the first arc-shaped edge is located on the first arc-shaped edge, and a second area of the first touch electrode with a vertex located on the first arc-shaped edge is larger than the first area; and/or the presence of a gas in the gas,

the edges of the touch area comprise second arc-shaped edges, second touch electrodes positioned at the same end of a plurality of adjacent second electrode groups are in contact with the second arc-shaped edges, a vertex of at least one second touch electrode in the plurality of second touch electrodes in contact with the second arc-shaped edges is positioned on the second arc-shaped edges, and the second area of the second touch electrode positioned on the second arc-shaped edges is larger than the first area.

In one embodiment, when the edge of the touch area includes a first arc-shaped edge, a vertex of at least one first touch electrode among a plurality of first touch electrodes in contact with the first arc-shaped edge is located on the first arc-shaped edge, and edges of other first touch electrodes are located on the first arc-shaped edge; in the plurality of first touch electrodes in contact with the first arc-shaped edge, the vertex of one first touch electrode in two adjacent first touch electrodes is positioned on the first arc-shaped edge, one edge of the other first touch electrode is positioned on the first arc-shaped edge, and the vertex of the second touch electrode is arranged between the vertex and the edge; and/or the presence of a gas in the gas,

when the edge of the touch area comprises a second arc-shaped edge, one vertex of at least one second touch electrode in a plurality of second touch electrodes which are in contact with the second arc-shaped edge is positioned on the second arc-shaped edge, and one edge of other second touch electrodes is positioned on the second arc-shaped edge; the vertex of one of the two adjacent second touch electrodes is located on the second arc-shaped edge, one edge of the other second touch electrode is located on the second arc-shaped edge, and the vertex of the first touch electrode is arranged between the vertex and the edge.

In one embodiment, when the edge of the touch area includes a first arc-shaped edge, a vertex of two adjacent first touch electrodes among the plurality of first touch electrodes contacting the first arc-shaped edge is located on the first arc-shaped edge, and an edge of the second touch electrode is arranged between the two vertices; and/or the presence of a gas in the gas,

when the edge of the touch substrate comprises a second arc-shaped edge, one vertex of each two adjacent second touch electrodes is located on the second arc-shaped edge in the plurality of second touch electrodes in contact with the second arc-shaped edge, and an edge of the first touch electrode is arranged between the two vertices.

In one embodiment, when the edge of the touch area includes a first arc-shaped edge, the first arc-shaped edge of the touch area is arc-shaped, and the number of first touch electrodes in contact with the first arc-shaped edge is odd; and/or when the edges of the touch area comprise second arc-shaped edges, the second arc-shaped edges of the touch area are arc-shaped, and the number of the second touch electrodes in contact with the second arc-shaped edges is odd.

In one embodiment, when the edge of the touch area includes a first arc-shaped edge, the plurality of first touch electrodes in contact with the first arc-shaped edge are symmetrically arranged; and/or the presence of a gas in the gas,

when the edges of the touch area comprise second arc-shaped edges, the plurality of second touch electrodes in contact with the second arc-shaped edges are symmetrically arranged.

In one embodiment, when the edge of the touch area includes a first arc-shaped edge, a vertex of at least one first touch electrode in the middle of a plurality of first touch electrodes in contact with the first arc-shaped edge is located on the first arc-shaped edge, and a second area of the first touch electrodes gradually decreases from the first touch electrode in the middle to the first touch electrodes on both sides; and/or the presence of a gas in the gas,

when the edge of the touch area comprises a second arc-shaped edge, in a plurality of second touch electrodes in contact with the second arc-shaped edge, the vertex of at least one second touch electrode positioned in the middle is positioned on the second arc-shaped edge, and the second area of the second touch electrode is gradually reduced from the second touch electrode in the middle to the second touch electrodes on two sides.

In one embodiment, when the edge of the touch area includes a first arc-shaped edge, one edge of at least one touch electrode in the middle of the plurality of first touch electrodes in contact with the first arc-shaped edge is located on the first arc-shaped edge, one vertex of the first touch electrodes on two sides is located on the first arc-shaped edge, and a second area of the first touch electrodes on two sides is larger than a second area of the first touch electrode in the middle; and/or the presence of a gas in the gas,

when the edges of the touch area include a second arc-shaped edge, one edge of at least one second touch electrode located in the middle of the plurality of second touch electrodes in contact with the second arc-shaped edge is located on the second arc-shaped edge, one vertex of the second touch electrodes located on two sides of the plurality of second touch electrodes is located on the second arc-shaped edge, and a second area of the second touch electrodes located on two sides of the plurality of second touch electrodes is larger than a second area of the second touch electrode located in the middle of the plurality of second touch electrodes.

In one embodiment, the edge of the touch area is circular, the edge of the touch area is formed by connecting two first arc-shaped edges and two second arc-shaped edges, the central angles of the first arc-shaped edges and the second arc-shaped edges are 90 degrees respectively, the two first arc-shaped edges are opposite, and the two second arc-shaped edges are opposite;

the touch electrodes at the two first arc-shaped edges are symmetrical with respect to the diameter of the circle where the edges of the touch area are located and extending along the second direction; and/or the touch electrodes positioned at the two second arc-shaped edges are symmetrical with respect to the diameter of the circle where the edges of the touch area are positioned, which extends along the first direction.

In one embodiment, when the edge of the touch area includes a first arc-shaped edge, the first arc-shaped edge of the touch area is arc-shaped, and the number of the first touch electrodes in contact with the first arc-shaped edge is even; and/or when the edge of the touch area comprises a second arc-shaped edge, the second arc-shaped edge of the touch area is arc-shaped, and the number of second touch electrodes in contact with the second arc-shaped edge is even.

In one embodiment, when the edge of the touch area includes a first arc-shaped edge, among the plurality of first touch electrodes in contact with the first arc-shaped edge, the vertex of at least two first touch electrodes located in the middle is located on the first arc-shaped edge, and an edge of one second touch electrode is arranged between the two vertices; the second areas of the two first touch electrodes in the middle are equal, and the areas of the first touch electrodes are gradually reduced from the two first touch electrodes in the middle to the first touch electrodes on the two sides; and/or the presence of a gas in the gas,

when the edges of the touch area comprise second arc-shaped edges, the top points of at least two second touch electrodes positioned in the middle are positioned on the second arc-shaped edges in the plurality of second touch electrodes contacted with the second arc-shaped edges, and one edge of the first touch electrode is arranged between the two top points; the second areas of the two second touch electrodes in the middle are equal, and the areas of the second touch electrodes are gradually reduced from the two second touch electrodes in the middle to the second touch electrodes on the two sides.

In one embodiment, when the edges of the touch area include a first arc-shaped edge, at least two first touch electrodes located in the middle are provided, wherein one vertex of one first touch electrode is located on the first arc-shaped edge, one edge of the other first touch electrode is located on the first arc-shaped edge, and a vertex of a second touch electrode is arranged between the vertex and the edge; and/or the presence of a gas in the gas,

when the edges of the touch area comprise second arc-shaped edges, at least two second touch electrodes positioned in the middle are arranged, one vertex of one second touch electrode is positioned on the second arc-shaped edge, one edge of the other second touch electrode is positioned on the second arc-shaped edge, and a vertex of the first touch electrode is arranged between the vertex and the edge.

In one embodiment, the edge of the touch area is circular, and the edge of the touch area is formed by connecting two first arc-shaped edges and two second arc-shaped edges; the central angles corresponding to the first arc-shaped edges and the second arc-shaped edges are respectively 90 degrees, the two first arc-shaped edges are opposite, and the two second arc-shaped edges are opposite;

the touch electrodes positioned at the two first arc-shaped edges are symmetrical about the diameter of the edge of the touch area extending along the first direction; the touch electrodes positioned at the two second arc-shaped edges are symmetrical about the diameter of the edge of the touch area extending along the second direction;

or the touch electrodes positioned at the two first arc-shaped edges are symmetrical about the center of the touch area; the touch electrodes positioned at the two second arc-shaped edges are symmetrical about the center of the touch area;

or the touch electrodes positioned at the two first arc-shaped edges are symmetrical about the diameter of the edge of the touch area extending along the first direction; the touch electrodes positioned at the two second arc-shaped edges are symmetrical about the center of the touch area;

or the touch electrodes positioned at the two first arc-shaped edges are symmetrical about the center of the touch area; the touch electrodes at the two second arc-shaped edges are symmetrical with respect to the diameter of the edge of the touch area extending along the second direction.

A second aspect of the embodiments of the present application provides a display device, which includes the above touch substrate.

The touch substrate and the display device provided by the embodiment of the application have the advantages that at least part of the edge of the touch area of the touch substrate is arc-shaped, the area of the touch electrode in contact with the arc-shaped edge is larger than or equal to half of the area of the touch electrode far away from the arc-shaped edge, the situation that the capacitance of the touch electrode in contact with the arc-shaped edge is smaller due to the fact that the second area of the touch electrode in contact with the arc-shaped edge in the touch area is smaller can be avoided, and therefore the area touch precision of the touch area close to the arc-shaped edge can be improved to be lower, and the touch performance of the edge area of the touch substrate can be improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic distribution diagram of touch electrodes in a touch area of a touch substrate according to an embodiment of the present disclosure.

Fig. 2 is a schematic distribution diagram of touch electrodes in a touch area of a touch substrate according to another embodiment of the present disclosure.

Fig. 3 is a schematic distribution diagram of touch electrodes in a touch area of a touch substrate according to another embodiment of the present disclosure.

Fig. 4 is a schematic distribution diagram of touch electrodes in a touch area of a touch substrate according to another embodiment of the present disclosure.

Fig. 5 is a schematic distribution diagram of touch electrodes in a touch area of a touch substrate according to yet another embodiment of the present disclosure.

Fig. 6 is a schematic distribution diagram of touch electrodes in a touch area of a touch substrate according to yet another embodiment of the present disclosure.

Fig. 7 is a schematic distribution diagram of touch electrodes in a touch area of a touch substrate according to yet another embodiment of the present disclosure.

Fig. 8 is a schematic distribution diagram of touch electrodes in a touch area of a touch substrate according to yet another embodiment of the present disclosure.

Fig. 9 is a schematic distribution diagram of touch electrodes in a touch area of a touch substrate according to yet another embodiment of the present disclosure.

Fig. 10 is a schematic distribution diagram of touch electrodes in a touch area of a touch substrate according to yet another embodiment of the present disclosure.

Fig. 11 is a partial cross-sectional view of a touch layer of a touch substrate taken along a section line according to an embodiment of the present disclosure.

Fig. 12 is a partial cross-sectional view of the touch layer of the touch substrate shown in fig. 11 taken along another cross-sectional line.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the terms "first," "second," and the like as used in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items.

A touch substrate and a display device according to embodiments of the present application are described in detail below with reference to the accompanying drawings. The features of the following examples and embodiments can be supplemented or combined with each other without conflict.

The embodiment of the application provides a touch substrate. The touch substrate comprises a touch area, and at least part of the edge of the touch area is arc-shaped. The touch substrate comprises a substrate and a touch layer positioned on the substrate, and the touch layer is positioned in the touch area.

As shown in fig. 1 to 10, the touch area 100 includes arc-shaped

edges

40 and 50. The dashed lines in the illustrated embodiment represent the boundaries between adjacent arc-shaped edges, dividing the edges of the touch area into arc-shaped

edges

40, 50. The touch layer includes a plurality of touch electrodes 30 arranged at intervals, the plurality of touch electrodes 30 are arranged as a plurality of second electrode groups 20 extending along a first direction D1 and a plurality of first electrode groups 10 extending along a second direction D2, and the first direction D1 intersects the second direction D2. The first electrode group 10 includes a plurality of first touch electrodes 11, and adjacent first touch electrodes 11 in the same first electrode group 10 are electrically connected. The second electrode group 20 includes a plurality of second touch electrodes 21, and adjacent second touch electrodes 21 in the same second electrode group 20 are electrically connected. The touch electrodes of the touch electrodes 30 far away from the arc-shaped

edges

40 and 50 have the same area and are all the first area, the area of the touch electrode contacting the arc-shaped

edges

40 and 50 is the second area, and the second area is larger than or equal to half of the first area. In the illustrated embodiment, the second area of the first touch electrode 11 contacting the arc-shaped

edges

40 and 50 is greater than or equal to half of the first area, and the second area of the second touch electrode 21 contacting the arc-shaped

edges

40 and 50 is greater than or equal to half of the first area.

The touch electrode 30 contacting the arc-shaped

edges

40 and 50 means that one vertex or one edge of the touch electrode 30 is located on the arc-shaped

edges

40 and 50. The touch electrodes 30 far from the arc-shaped

edges

40 and 50 refer to touch electrodes where the touch electrodes 30 are not in direct contact with the arc-shaped

edges

40 and 50, and the areas of the touch electrodes 30 far from the arc-shaped

edges

40 and 50 may be equal and are all the first areas.

In one embodiment, the first direction is perpendicular to a second direction, the first direction being a row direction and the second direction being a column direction, or the first direction being a column direction and the second direction being a row direction. In the illustrated embodiment, the first direction D1 is a row direction and the second direction D2 is a column direction.

The touch substrate provided by the embodiment of the application, at least partial edge of the touch area of the touch substrate is arc-shaped, and the area of the touch electrode in contact with the arc-shaped edge is larger than or equal to half of the area of the touch electrode far away from the arc-shaped edge, so that the situation that the capacitance of the touch electrode in contact with the arc-shaped edge is smaller due to the fact that the second area of the touch electrode in contact with the arc-shaped edge is smaller in the touch area can be avoided, and therefore the area touch precision of the touch area close to the arc-shaped edge can be improved, and the touch performance of the edge area of the touch substrate can be improved.

In one embodiment, as shown in fig. 11 and 12, the touch layer further includes a first connection portion 101, a second connection portion 201, an insulating layer 60, a buffer layer 70 and a protection layer 80, adjacent first touch electrodes 11 in the same first electrode group 10 are electrically connected through the first connection portion 101, and adjacent second touch electrodes 21 in the same second electrode group 20 are electrically connected through the second connection portion 201; the first touch electrode 11 and the second touch electrode 21 are located on the same layer, one of the first connection portion and the second connection portion is located on the same layer as the first touch electrode 11, and the other is located on a different layer from the first touch electrode 11, for example, a film layer located below the first touch electrode 11. In the embodiments shown in fig. 11 and 12, the first connection portion 101 is located at the same layer as the first touch electrode 11 and the second touch electrode 21; the second connecting portion 201 is located below the first touch electrode and the second touch electrode; the buffer layer 70 is located below the second connection portion 201; the insulating layer 60 is located between the second connection portion 201 and the first touch electrode 11, and two adjacent second touch electrodes 21 are electrically connected to the same second connection portion 201 through a through hole of the insulating layer 60; the protection layer 80 covers the first touch electrode 11, the second touch electrode 21, and the first connection portion 101.

In one embodiment, as shown in fig. 1 to 5, the touch area 100 may include a first arc-shaped edge 40 and/or a second arc-shaped edge 50, the number of the first arc-shaped edge 40 and the second arc-shaped edge 50 may be multiple, and the shapes of the first arc-shaped edge 40 and the second arc-shaped edge 50 may be circular arcs, elliptical arcs, or other shapes. The touch area 100 is set to be at least partially arc-shaped, so that the touch substrate can be set to be round or in other non-rectangular shapes, the requirements of customers on different shapes of the touch substrate are met, and the attractiveness of the touch substrate is improved.

In one embodiment, the edge of the touch area 100 is circular, the first arc-shaped edge 40 and the second arc-shaped edge 50 are arc-shaped, the edge of the touch area 100 is formed by connecting the two first arc-shaped edges 40 and the two second arc-shaped edges 50, and the central angles of the first arc-shaped edge 40 and the second arc-shaped edge 50 are 90 degrees respectively. Wherein the two first arcuate edges 40 are opposed and the two second arcuate edges 50 are opposed.

In one embodiment, as shown in fig. 1 to 5, the edges of the touch area include a first arc-shaped edge 40, the first touch electrode 11 at the same end of the plurality of adjacent first electrode groups 10 is in contact with the first arc-shaped edge 40, and a vertex of at least one first touch electrode 12 (the first touch electrode is the first touch electrode with the reference numeral 12, which has only one vertex on the first arc-shaped edge 40) of the plurality of first touch electrodes 11 in contact with the first arc-shaped edge 40 is located on the first arc-shaped edge 40, and a second area of the first touch electrode 12 with one vertex on the first arc-shaped edge 40 is larger than the first area. One vertex of the first touch electrode 12 is located on the first arc-shaped edge 40, which means that only one vertex of the first touch electrode 12 is located on the first arc-shaped edge 40. In this way, the second area of the at least one first touch electrode 12 is larger than the first area, so that the capacitance of the first touch electrode is larger, which is beneficial to improving the touch performance of the touch substrate.

In the embodiment shown in fig. 1, of the five first touch electrodes 11 contacting the first arc-shaped edge 40, only one vertex of the three first touch electrodes 12 located at the middle position is located on the first arc-shaped edge 40, and the second area of the three first touch electrodes 12 is larger than the first area. In the embodiment shown in fig. 2, of the five first touch electrodes 11 contacting the first arc-shaped edge 40, only one vertex of one first touch electrode 12 located at the middle position is located on the first arc-shaped edge 40, and the second area of the first touch electrode 12 is larger than the first area. In the embodiment shown in fig. 3, of the five first touch electrodes 11 contacting the first arc-shaped edge 40, two first touch electrodes 12 have only one vertex on the first arc-shaped edge 40, and the second area is larger than the first area. In the embodiment shown in fig. 4, of the four first touch electrodes 11 contacting the first arc-shaped edge 40, only one vertex of each of the two first touch electrodes 12 located at the middle position is located on the first arc-shaped edge 40, and the second area is larger than the first area. In the embodiment shown in fig. 5, of the four first touch electrodes 11 contacting the first arc-shaped edge 40, only one vertex of one first touch electrode 12 is located on the first arc-shaped edge 40, and the second area of the first touch electrode 12 is larger than the first area.

In one embodiment, as shown in fig. 1 to 5, the edges of the touch area include a second arc-shaped edge 50, the second touch electrode 21 at the same end of the plurality of adjacent second electrode groups 20 is in contact with the second arc-shaped edge 50, and one vertex of at least one second touch electrode 22 (the second touch electrode 22 with the vertex being located on the second arc-shaped edge 50 when the second touch electrode is labeled as 22) of the plurality of second touch electrodes 21 in contact with the second arc-shaped edge 50 is located on the second arc-shaped edge, and the second area of the second touch electrode 22 with the vertex being located on the second arc-shaped edge 50 is larger than the first area. One vertex of the second touch electrode 22 is located on the second arc-shaped edge 50, which means that only one vertex of the second touch electrode 22 is located on the second arc-shaped edge 50. In this way, the second area of the at least one second touch electrode 22 is larger than the first area, so that the capacitance of the second touch electrode is larger, which is beneficial to improving the touch performance of the touch substrate.

In the embodiment shown in fig. 1, of the five second touch electrodes 21 contacting the first arc-shaped edge 50, only one vertex of the three second touch electrodes 22 located at the middle position is located on the second arc-shaped edge 50, and the second area is larger than the first area. In the embodiment shown in fig. 2, only one vertex of a second touch electrode 22 located at the middle position is located on the second arc-shaped edge 50, and the second area of the second touch electrode 22 is larger than the first area. In the embodiment shown in fig. 3, only one vertex of the two second touch electrodes 22 is located on the second arc-shaped edge 50, and the second area is larger than the first area. In the embodiment shown in fig. 4, only one vertex of each of the two second touch electrodes 22 located at the middle position is located on the second arc-shaped edge 50, and the second area is larger than the first area. In the embodiment shown in fig. 5, only one vertex of one second touch electrode 22 is located on the second arc-shaped edge 50, and the second area of the second touch electrode 22 is larger than the first area.

In one embodiment, as shown in fig. 1 and 4, when the edge of the touch area includes a first arc-shaped edge 40, in the plurality of first touch electrodes 11 contacting the first arc-shaped edge 40, a vertex of each of two adjacent first touch electrodes 12 is located on the first arc-shaped edge 40, and an edge of the second touch electrode 21 is located between the two vertices.

Among the plurality of first touch electrodes 11 contacting the first arc-shaped edge 40, only one vertex of the first touch electrode 12 located on the first arc-shaped edge 40 is located, and if only one vertex of the first touch electrode 12 adjacent to the first touch electrode is located on the first arc-shaped edge 40, one edge of one second touch electrode 21 disposed between two adjacent first touch electrodes 12 is located on the first arc-shaped edge 40. The two adjacent first touch electrodes 12 mean that no other first touch electrode 11 is disposed between the two adjacent first touch electrodes 12, but a second touch electrode 21 may be disposed between the two adjacent first touch electrodes 12. The touch panel is in contact with the first arc-shaped edge 40, each of two adjacent first touch electrodes 12 has only one vertex in contact with the first arc-shaped edge 40, the space between the two adjacent first touch electrodes 12 is large, and one edge of the second touch electrode 21 arranged between the two first touch electrodes 12 is located on the first arc-shaped edge 40, so that the area of the second touch electrode 21 is large, and the area of the first arc-shaped edge 40 is fully utilized, so that the areas of the first touch electrode 12 and the second touch electrode 21 at the first arc-shaped edge 40 are large.

In the embodiment shown in fig. 1, the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is five, wherein only one vertex of the three first touch electrodes 12 located in the middle is located on the first arc-shaped edge 40, wherein one second touch electrode 21 is respectively located between the first touch electrode 12 located in the middle and the two adjacent first touch electrodes 12, and one edge of the second touch electrode 21 is located on the first arc-shaped edge 40. In the embodiment shown in fig. 4, the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is four, wherein only one vertex of the two first touch electrodes 11 located in the middle is located on the first arc-shaped edge 40, one second touch electrode 21 is disposed between the two first touch electrodes 12, and one edge of the second touch electrode 21 is located on the first arc-shaped edge 40.

In one embodiment, as shown in fig. 1 and 4, when the edge of the touch substrate includes a second arc-shaped edge 50, in the plurality of second touch electrodes 21 contacting the second arc-shaped edge 50, a vertex of each of two adjacent second touch electrodes 22 is located on the second arc-shaped edge 50, and an edge of the first touch electrode 11 is located between the two vertices. The two adjacent second touch electrodes 22 mean that no other second touch electrode 21 is disposed between the two adjacent second touch electrodes 22, but the first touch electrode 11 may be disposed. Among the plurality of second touch electrodes 21 contacting the second arc-shaped edge 50, only one vertex of the second touch electrode 22 located on the second arc-shaped edge 40 is located, and if only one vertex of the second touch electrode 22 adjacent to the second touch electrode is located on the second arc-shaped edge 50, one edge of one first touch electrode 11 disposed between two adjacent second touch electrodes 22 is located on the second arc-shaped edge 50. The second touch electrodes 22 are in contact with the second arc-shaped edge 50, each of the two adjacent second touch electrodes 22 has only one vertex in contact with the second arc-shaped edge 50, a large space is formed between the two adjacent second touch electrodes 22, the area of the first touch electrode 11 arranged between the two adjacent second touch electrodes 22 is large, and the area of the second arc-shaped edge 50 is fully utilized, so that the areas of the second touch electrode 21 and the first touch electrode 11 at the second arc-shaped edge 50 are large.

In the embodiment shown in fig. 1, the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is five, wherein only one vertex of the middle three second touch electrodes 22 is located on the second arc-shaped edge 50, one first touch electrode 11 is respectively disposed between the most middle one of the second touch electrodes 22 and the two adjacent second touch electrodes 22, and one edge of the first touch electrode 11 is located on the second arc-shaped edge 50. In the embodiment shown in fig. 4, the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is four, wherein only one vertex of the two second touch electrodes 21 located in the middle is located on the second arc-shaped edge 50, one first touch electrode 11 is disposed between the two second touch electrodes 22, and one edge of the first touch electrode 11 is located on the second arc-shaped edge 50.

In one embodiment, as shown in fig. 2, 3 and 5, when the edge of the touch area 100 includes a first arc-shaped edge 40, in the plurality of first touch electrodes 11 contacting the first arc-shaped edge 40, one vertex of at least one first touch electrode 12 is located on the first arc-shaped edge 40, and one edge of the other first touch electrodes 13 is located on the first arc-shaped edge 40. In the plurality of first touch electrodes 11 in contact with the first arc-shaped edge 40, a vertex of one first touch electrode 12 of two adjacent first touch electrodes 11 is located on the first arc-shaped edge 40, an edge of the other first touch electrode 13 is located on the first arc-shaped edge 40, and a vertex of the second touch electrode 21 is arranged between the vertex and the edge. In the plurality of first touch electrodes 11 in contact with the first arc-shaped edge 40, only one vertex of the first touch electrode 12 located on the first arc-shaped edge 40 is located, and one edge of the first touch electrode 13 adjacent to the first touch electrode is located on the first arc-shaped edge 40, so that only one vertex of a second touch electrode 21 disposed between two adjacent first touch electrodes is located on the first arc-shaped edge 40. With this arrangement, the distance between the edge of the first touch electrode 13 on the first arc-shaped edge 40 and the vertex of the first touch electrode 12 on the first arc-shaped edge 40 can be set to be shorter, which helps to make the area of the first touch electrode 13 larger; the second touch electrode 21 is located between the first touch electrode 13 and the first touch electrode 12, and the vertex of the second touch electrode 21 is located on the first arc edge, so that the space between the first touch electrode 13 and the first touch electrode 12 can be fully utilized, which is beneficial to making the area of the second touch electrode 21 larger.

In the embodiment shown in fig. 2, the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is five, wherein only one vertex of a first touch electrode 12 located in the middle is located on the first arc-shaped edge 40, one edge of the first touch electrodes 13 located at two sides of the first touch electrode 12 is located on the first arc-shaped edge 40, wherein a second touch electrode 21 is respectively disposed between the first touch electrode 12 located in the middle and two adjacent first touch electrodes 13, and one vertex of the second touch electrode 21 is located on the first arc-shaped edge 40. In the embodiment shown in fig. 3, the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is five, wherein one edge of one first touch electrode 13 located at the middle position is located on the first arc-shaped edge 40, only one vertex of the first touch electrode 12 located at both sides of the first touch electrode 13 is located on the first arc-shaped edge 40, wherein one second touch electrode 21 is respectively disposed between the first touch electrode 13 located at the middle position and two adjacent first touch electrodes 12, and one vertex of the second touch electrode 21 is located on the first arc-shaped edge 40. In the embodiment shown in fig. 5, the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is four, and of the two first touch electrodes located at the middle position, only one vertex of one touch electrode 12 is located on the first arc-shaped edge 40, one edge of the other first touch electrode 13 is located on the first arc-shaped edge 40, a second touch electrode 21 is disposed between the first touch electrode 12 located at the middle position and the first touch electrode 13, and one vertex of the second touch electrode 21 is located on the first arc-shaped edge 40.

In one embodiment, as shown in fig. 2, 3 and 5, when the edge of the touch area includes a second arc-shaped edge 50, in the plurality of second touch electrodes 21 contacting the second arc-shaped edge 50, one vertex of at least one second touch electrode 22 is located on the second arc-shaped edge 50, and one edge of the other second touch electrodes 21 is located on the second arc-shaped edge 50; one vertex of one second touch electrode 22 of the two adjacent second touch electrodes is located on the second arc-shaped edge, one edge of the other second touch electrode 23 is located on the second arc-shaped edge 50, and one vertex of the first touch electrode 11 is arranged between the vertex and the edge.

And among the plurality of second touch electrodes 21 in contact with the second arc-shaped edge 50, the second touch electrode 22 having only one vertex on the second arc-shaped edge 50 and one edge of the second touch electrode 23 adjacent to the second touch electrode on the second arc-shaped edge 50, and a first touch electrode 11 disposed between two adjacent second touch electrodes, wherein one vertex of the first touch electrode 11 is on the second arc-shaped edge 50. With this arrangement, the distance between the edge of the second touch electrode 23 located on the second arc-shaped edge 50 and the vertex of the second touch electrode 22 located on the second arc-shaped edge 50 can be set to be shorter, which helps to make the area of the second touch electrode 23 larger; the first touch electrode 11 is located between the second touch electrode 23 and the second touch electrode 22, and the vertex of the first touch electrode 11 is located on the second arc-shaped edge 50, so that the space between the second touch electrode 22 and the second touch electrode 23 can be fully utilized, which is beneficial to making the area of the first touch electrode 11 larger. In the embodiment shown in fig. 2, the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is five, wherein only one vertex of one second touch electrode 22 located in the middle is located on the second arc-shaped edge 50, one edge of the second touch electrode 23 located at both sides of the second touch electrode 22 is located on the second arc-shaped edge 50, one first touch electrode 11 is respectively disposed between the one second touch electrode 22 located in the middle and two adjacent second touch electrodes 23, and one vertex of the first touch electrode 11 is located on the second arc-shaped edge 50. In the embodiment shown in fig. 3, the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is five, wherein one edge of one second touch electrode 23 located at the middle position is located on the second arc-shaped edge 50, only one vertex of the second touch electrode 22 located at both sides of the second touch electrode 23 is located on the second arc-shaped edge 50, one first touch electrode 11 is respectively disposed between the one second touch electrode 23 located at the middle position and two adjacent second touch electrodes 22, and one vertex of the first touch electrode 11 is located on the second arc-shaped edge 50. In the embodiment shown in fig. 5, the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is four, and of the two second touch electrodes located at the middle position, only one vertex of one second touch electrode 22 is located on the second arc-shaped edge 50, one edge of the other second touch electrode 23 is located on the second arc-shaped edge 50, one first touch electrode 11 is disposed between the second touch electrode 22 located at the middle position and the second touch electrode 23, and one vertex of the first touch electrode 11 is located on the second arc-shaped edge 50.

In one embodiment, when the edge of the touch area 100 includes the first arc-shaped edge 40, the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 may be odd or even; when the edge of the touch area 100 includes the second arc-shaped edge 50, the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 may be odd or even. According to the size of the touch area and the shape of the edge of the touch area, the number of the touch electrodes in contact with the arc-shaped edge can be set to be an odd number or an even number, and the edge touch precision can be further improved by reasonably setting the number of the touch electrodes in contact with the arc-shaped edge.

In one embodiment, as shown in fig. 1 to 3, the edges of the touch area include a first arc-shaped edge, the first arc-shaped edge of the touch area is arc-shaped, the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is odd, and the plurality of first touch electrodes 11 contacting the first arc-shaped edge 40 are symmetrically disposed. The plurality of first touch electrodes 11 contacting the first arc-shaped edge 40 are symmetrically disposed, so that a processing process can be simplified when processing a touch signal of the touch substrate.

In the embodiment shown in fig. 1 to 3, the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is five. In the embodiment shown in fig. 1, of the five first touch electrodes 11 in contact with the first arc-shaped edge 40, only one vertex of the three first touch electrodes 12 located in the middle is located on the first arc-shaped edge 40, and one edge of the two first touch electrodes located at the outermost side is located on the first arc-shaped edge 40. The area of the first touch electrode 12 located at the middle is the largest, the area of the first touch electrode 12 adjacent to the first touch electrode is equal, and the area of the first touch electrode 11 located at the outermost side is equal. In the embodiment shown in fig. 2, of the five first touch electrodes 11 contacting the first arc-shaped edge 40, only one vertex of the middle one of the first touch electrodes 12 is located on the first arc-shaped edge 40, and one edge of the other four first touch electrodes is located on the first arc-shaped edge 40; the area of the middle first touch electrode 12 is the largest, the area of the middle first touch electrode 12 is equal to the area of the two adjacent first touch electrodes 13, and the area of the outermost first touch electrodes 11 is equal to the area of the outermost first touch electrodes. In the embodiment shown in fig. 3, of the five first touch electrodes 11 in contact with the first arc-shaped edge 40, one edge of the middle one of the first touch electrodes 13 is located on the first arc-shaped edge 40, only one vertex of the two first touch electrodes 12 located on both sides of the first touch electrode 13 is located on the first arc-shaped edge 40, and one edge of the outermost two first touch electrodes 11 is located on the first arc-shaped edge 40; the areas of the two first touch electrodes 12 on the two sides of the middle first touch electrode 13 are equal, and the areas of the two first touch electrodes 11 on the outermost sides are equal.

In one embodiment, as shown in fig. 1 to 3, the edges of the touch area include a second arc-shaped edge, the second arc-shaped edge of the touch area is arc-shaped, the number of the second touch electrodes contacting the second arc-shaped edge 50 is odd, and the plurality of second touch electrodes 21 contacting the second arc-shaped edge 50 are symmetrically disposed. The plurality of second touch electrodes 21 contacting the second arc-shaped edge 50 are symmetrically disposed, so that a processing process can be simplified when processing a touch signal of the touch substrate.

In the embodiment shown in fig. 1 to 3, the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is five. In the embodiment shown in fig. 1, of the five second touch electrodes 21 in contact with the second arc-shaped edge 50, only one vertex of the three second touch electrodes 22 located in the middle is located on the second arc-shaped edge 50, and one edge of the two second touch electrodes located at the outermost side is located on the second arc-shaped edge 50. The area of the second touch electrode 22 located at the middle is the largest, the area of the second touch electrode 22 adjacent to the second touch electrode is equal, and the area of the second touch electrode 21 located at the outermost side is equal. In the embodiment shown in fig. 2, of the five second touch electrodes 21 in contact with the second arc-shaped edge 50, only one vertex of the middle second touch electrode 22 is located on the second arc-shaped edge 50, and one edge of the other four second touch electrodes is located on the second arc-shaped edge 50; the area of the middle second touch electrode 22 is the largest, the areas of the two adjacent second touch electrodes 23 are equal, and the areas of the two outermost second touch electrodes 21 are equal. In the embodiment shown in fig. 3, of the five second touch electrodes 21 in contact with the second arc-shaped edge 50, one edge of the middle second touch electrode 23 is located on the second arc-shaped edge 50, only one vertex of the two second touch electrodes 22 located on two sides of the second touch electrode 23 is located on the second arc-shaped edge 50, and one edge of the two outermost second touch electrodes 21 is located on the second arc-shaped edge 50; the areas of the two second touch electrodes 22 at the two sides of the middle second touch electrode 23 are equal, and the areas of the two second touch electrodes 21 at the outermost sides are equal.

In one embodiment, as shown in fig. 1 and fig. 2, the edges of the touch area include a first arc-shaped edge 40, the first arc-shaped edge 40 of the touch area is arc-shaped, and the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is odd. In the plurality of first touch electrodes 11 contacting the first arc-shaped edge 40, the vertex of at least one first touch electrode 12 located in the middle is located on the first arc-shaped edge 40, and the second area of the first touch electrode gradually decreases from the first touch electrode in the middle to the first touch electrodes on both sides.

In the embodiment shown in fig. 1 and 2, the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is five. In the embodiment shown in fig. 1, of the five first touch electrodes 11 in contact with the first arc-shaped edge 40, only one vertex of the three first touch electrodes 12 located in the middle is located on the first arc-shaped edge 40, one edge of the two first touch electrodes 11 located at the outermost sides is located on the first arc-shaped edge, and the second area of the first touch electrodes gradually decreases from the middle to both sides. In this embodiment, since the first touch electrodes 11 contacting the first arc-shaped edge 40 are symmetrically disposed, the second touch electrodes 21 contacting the first arc-shaped edge 40 are also symmetrically disposed, and the second area of the second touch electrodes 21 gradually decreases from the middle second touch electrode to the second touch electrodes on both sides. In this embodiment, the second area of the touch electrode with the smallest area among the touch electrodes contacting the first arc-shaped edge 40 may be more than 70% of the first area. In the embodiment shown in fig. 2, of the five first touch electrodes 11 contacting the first arc-shaped edge 40, only one vertex of the middle first touch electrode 12 is located on the first arc-shaped edge 40, and one edge of the other four first touch electrodes is located on the first arc-shaped edge 40, and the second area of the first touch electrodes gradually decreases from the middle to both sides. In this embodiment, the second area of the touch electrode with the smallest area among the touch electrodes contacting the first arc-shaped edge 40 may be more than 65% of the first area.

In one embodiment, as shown in fig. 1 and fig. 2, the edges of the touch area include a second arc-shaped edge 50, the second arc-shaped edge 50 of the touch area is arc-shaped, and the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is odd. In the plurality of second touch electrodes 21 contacting the second arc-shaped edge 50, the vertex of at least one second touch electrode 22 located in the middle is located on the second arc-shaped edge, and the second area of the second touch electrode gradually decreases from the second touch electrode in the middle to the second touch electrodes on both sides.

In the embodiment shown in fig. 1 and 2, the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is five. In the embodiment shown in fig. 1, of the five second touch electrodes 21 in contact with the second arc-shaped edge 50, only one vertex of the three second touch electrodes 22 located in the middle is located on the second arc-shaped edge 50, one edge of the two second touch electrodes 21 located at the outermost sides is located on the second arc-shaped edge, and the second area of the second touch electrodes gradually decreases from the middle to both sides. In this embodiment, since the second touch electrodes 21 contacting the second arc-shaped edge 50 are symmetrically disposed, the first touch electrodes 11 contacting the second arc-shaped edge 50 are also symmetrically disposed, and the second area of the first touch electrodes 11 gradually decreases from the middle first touch electrode to the first touch electrodes on both sides. In this embodiment, the second area of the second touch electrode with the smallest area among the touch electrodes contacting the second arc-shaped edge 50 may be more than 70% of the first area. In the embodiment shown in fig. 2, of the five second touch electrodes 21 in contact with the second arc-shaped edge 50, only one vertex of the middle second touch electrode 22 is located on the second arc-shaped edge 50, and one edge of the other four second touch electrodes is located on the second arc-shaped edge 50, and the second area of the second touch electrodes gradually decreases from the middle to both sides. In this embodiment, the second area of the touch electrode with the smallest area among the touch electrodes contacting the second arc-shaped edge 50 may be more than 65% of the first area.

In one embodiment, as shown in fig. 3, the edge of the touch area 100 includes a first arc-shaped edge 40, the first arc-shaped edge 40 of the touch area is arc-shaped, and the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is odd. Among the plurality of first touch electrodes in contact with the first arc-shaped edge 40, one edge of at least one first touch electrode 13 located in the middle is located on the first arc-shaped edge 40, one vertex of the first touch electrodes 12 located at both sides is located on the first arc-shaped edge 40, and a second area of the first touch electrodes 12 located at both sides is larger than a second area of the first touch electrode 13 located in the middle.

In the embodiment shown in fig. 3, the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is five, one edge of the middle first touch electrode 13 is located on the first arc-shaped edge 40, only one vertex of two first touch electrodes 12 adjacent to the first touch electrode 13 is located on the first arc-shaped edge 40, and the area of the two first touch electrodes 12 is larger than that of the middle first touch electrode 13; one edge of the two outermost first touch electrodes 11 is located on the first arc-shaped edge 40. In this embodiment, the second area of the touch electrode with the smallest area among the touch electrodes contacting the first arc-shaped edge 40 may be more than 55% of the first area.

In one embodiment, as shown in fig. 3, the edges of the touch area include a second arc-shaped edge 50, the second arc-shaped edge 50 of the touch area is arc-shaped, and the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is odd. Among the plurality of second touch electrodes in contact with the second arc-shaped edge 50, one edge of at least one second touch electrode 23 located in the middle is located on the second arc-shaped edge 50, one vertex of the second touch electrodes 22 located at both sides is located on the second arc-shaped edge 50, and a second area of the second touch electrodes 22 located at both sides is larger than a second area of the second touch electrode 23 located in the middle.

In the embodiment shown in fig. 3, the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is five, one edge of the middle second touch electrode 23 is located on the second arc-shaped edge 50, only one vertex of two second touch electrodes 22 adjacent to the second touch electrode 23 is located on the second arc-shaped edge 50, and the area of the two second touch electrodes 22 is larger than that of the middle second touch electrode 23; one edge of the two second touch electrodes 21 located at the outermost side is located on the second arc-shaped edge 50. In this embodiment, the second area of the touch electrode with the smallest area among the touch electrodes contacting the second arc-shaped edge 50 may be more than 55% of the first area.

In one embodiment, as shown in fig. 1 to 3, the edge of the touch area 100 is circular, and the edge of the touch area is formed by connecting two first arc-shaped edges 40 and two second arc-shaped edges 50; the central angles of the first arc-shaped edges 40 and the second arc-shaped edges 50 are respectively 90 degrees, the two first arc-shaped edges 40 are opposite, and the two second arc-shaped edges 50 are opposite. The number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is odd, and the number of the second touch electrodes contacting the second arc-shaped edge 50 is odd. The touch electrodes at the two first arc-shaped edges are symmetrical with respect to the diameter of the circle where the edges of the touch area are located and extending along the second direction; the touch electrodes at the two second arc-shaped edges are symmetrical with respect to the diameter of the circle where the edges of the touch area are located and extending along the first direction. Therefore, the touch signal processing process of the touch substrate is simplified.

In one embodiment, as shown in fig. 4, the edge of the touch area includes a first arc-shaped edge 40, the first arc-shaped edge 40 of the touch area is arc-shaped, and the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is even. In the plurality of first touch electrodes 11 contacting the first arc-shaped edge 40, the vertex of at least two first touch electrodes 12 located in the middle are located on the first arc-shaped edge 40, and the second area of the first touch electrodes gradually decreases from the two first touch electrodes in the middle to the first touch electrodes on both sides. In this embodiment, the plurality of first touch electrodes 11 contacting the first arc-shaped edge 40 are symmetrically disposed, so that a processing procedure of processing a touch signal of the touch substrate can be simplified.

In the embodiment shown in fig. 4, of the four first touch electrodes 11 in contact with the first arc-shaped edge 40, only one vertex of each of the two first touch electrodes 12 located in the middle is located on the first arc-shaped edge 40, one edge of each of the two first touch electrodes 11 located at the outermost side is located on the first arc-shaped edge, the areas of the two first touch electrodes 12 located in the middle are equal, the areas of the two first touch electrodes 11 located at the outermost side are equal, and the area of the first touch electrode 12 located in the middle is greater than the areas of the two first touch electrodes 11 located at the outermost side. In this embodiment, since the first touch electrodes 11 contacting the first arc-shaped edge 40 are symmetrically disposed, the second touch electrodes 21 contacting the first arc-shaped edge 40 are also symmetrically disposed, and the second area of the second touch electrodes 21 gradually decreases from the middle second touch electrode to the second touch electrodes on both sides. In this embodiment, the second area of the touch electrode with the smallest area among the touch electrodes contacting the first arc-shaped edge 40 may be more than 62% of the first area.

In one embodiment, as shown in fig. 4, the edge of the touch area includes a second arc-shaped edge 50, the second arc-shaped edge 50 of the touch area is arc-shaped, and the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is even. Among the plurality of second touch electrodes 21 in contact with the second arc-shaped edge 50, the vertex of at least two second touch electrodes 22 located in the middle is located on the second arc-shaped edge 50, and the second area of the second touch electrodes gradually decreases from the two second touch electrodes in the middle to the second touch electrodes on both sides. In this embodiment, the plurality of second touch electrodes 21 contacting the second arc-shaped edge 50 are symmetrically disposed, so that a processing process of processing a touch signal of the touch substrate can be simplified.

In the embodiment shown in fig. 4, of the four second touch electrodes 21 in contact with the second arc-shaped edge 50, only one vertex of each of the two second touch electrodes 22 located in the middle is located on the second arc-shaped edge 50, one edge of each of the two second touch electrodes 21 located at the outermost side is located on the second arc-shaped edge, the areas of the two second touch electrodes 22 located in the middle are equal, the areas of the two second touch electrodes 21 located at the outermost side are equal, and the area of the second touch electrode 22 located in the middle is greater than the areas of the two second touch electrodes 21 located at the outermost side. In this embodiment, since the second touch electrodes 21 contacting the second arc-shaped edge 50 are symmetrically disposed, the first touch electrodes 11 contacting the second arc-shaped edge 50 are also symmetrically disposed, and the second area of the first touch electrodes 11 gradually decreases from the middle first touch electrode to the first touch electrodes on both sides. In this embodiment, the second area of the touch electrode with the smallest area among the touch electrodes contacting the second arc-shaped edge 50 may be more than 62% of the first area.

In one embodiment, as shown in fig. 5 to 10, the edges of the touch area include a first arc-shaped edge 40, the first arc-shaped edge 40 of the touch area is arc-shaped, and the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is even. In the at least two first touch electrodes 11 located in the middle, only one vertex of one first touch electrode 12 is located on the first arc-shaped edge 40, one edge of the other first touch electrode 13 is located on the first arc-shaped edge 40, and a vertex of the second touch electrode 21 is located between the vertex and the edge.

In the embodiment shown in fig. 5 to 10, the number of the first touch electrodes 11 contacting the first arc-shaped edge 40 is four, and of the two first touch electrodes 12 located in the middle, only one vertex of one first touch electrode 12 is located on the first arc-shaped edge 40, one edge of the other first touch electrode 13 is located on the first arc-shaped edge 40, and one edge of the two first touch electrodes 11 located on the outermost side is located on the first arc-shaped edge 40. A second touch electrode 21 is disposed between the first touch electrode 12 and the first touch electrode 13, and a vertex of the second touch electrode 21 is located on the first arc-shaped edge 40. In this embodiment, the second area of the touch electrode with the smallest area among the touch electrodes in contact with the second arc-shaped edge 50 may be more than 50% of the first area.

In one embodiment, as shown in fig. 5 to 10, the edges of the touch area include a second arc-shaped edge 50, the second arc-shaped edge 50 of the touch area is arc-shaped, and the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is even. In the at least two second touch electrodes 21 located in the middle, only one vertex of one second touch electrode 22 is located on the second arc-shaped edge 50, one edge of the other second touch electrode 23 is located on the second arc-shaped edge 50, and a vertex of the first touch electrode 11 is located between the vertex and the edge.

In the embodiment shown in fig. 5 to 10, the number of the second touch electrodes 21 contacting the second arc-shaped edge 50 is four, and of the two second touch electrodes 22 located in the middle, only one vertex of one second touch electrode 22 is located on the second arc-shaped edge 50, one edge of the other second touch electrode 23 is located on the second arc-shaped edge 50, and one edge of the two second touch electrodes 21 located at the outermost side is located on the second arc-shaped edge 50. A first touch electrode 11 is disposed between the middle second touch electrode 22 and the middle second touch electrode 23, and a vertex of the first touch electrode 11 is located on the second arc edge 50. In this embodiment, the second area of the touch electrode with the smallest area among the touch electrodes in contact with the second arc-shaped edge 50 may be more than 50% of the first area.

In one embodiment, as shown in fig. 4 to 10, the edge of the touch area is circular, and the edge of the touch area is formed by connecting two first arc-shaped edges 40 and two second arc-shaped edges 50; the central angles of the first arc-shaped edges 40 and the second arc-shaped edges 50 are respectively 90 degrees, two first arc-shaped edges 40 are opposite, and two second arc-shaped edges 50 are opposite.

In one embodiment, as shown in fig. 4 and 6, the touch electrodes located at the two first arc-shaped edges 40 are symmetrical with respect to the diameter of the edge of the touch area extending along the first direction; the touch electrodes at the two second arc-shaped edges 50 are symmetrical with respect to a diameter of the edge of the touch area extending in the second direction.

In one embodiment, as shown in fig. 4, 5, 7 and 8, the touch electrodes at the two first arc-shaped edges 40 are symmetrical with respect to the center of the touch area; the touch electrodes at the two second arc-shaped edges 50 are symmetrical with respect to the center of the touch area.

In one embodiment, as shown in fig. 9 and 10, the touch electrodes located at two first arc-shaped edges 40 are symmetrical with respect to a diameter of the edge of the touch area extending along the first direction; the touch electrodes at the two second arc-shaped edges 50 are symmetrical with respect to the center of the touch area.

In one embodiment, the touch electrodes at the two first arc-shaped edges 40 are symmetrical about the center of the touch area; the touch electrodes at the two second arc-shaped edges 50 are symmetrical with respect to a diameter of the edge of the touch area extending in the second direction.

It should be noted that, in the embodiment shown in fig. 4, the touch electrodes located at the two first arc-shaped edges 40 are symmetrical with respect to the diameter of the edge of the touch area extending along the first direction, and are symmetrical with respect to the center of the touch area; the touch electrodes at the two second arc-shaped edges 50 are symmetrical with respect to the diameter of the edge of the touch area extending in the second direction, and are symmetrical with respect to the center of the touch area.

In the embodiments provided in the present application, the number of the first touch electrodes contacting the first arc-shaped edge may be even or odd.

The edge of the touch area is circular, and the edge of the touch area is formed by connecting two first arc-shaped edges and two second arc-shaped edges; the central angles of the first arc-shaped edges and the second arc-shaped edges are respectively 90 degrees, the two first arc-shaped edges are opposite, the two second arc-shaped edges are opposite, and when the number of the first touch electrodes in contact with the first arc-shaped edges is even or odd, the touch electrodes in contact with the two first arc-shaped edges can be arranged to be axisymmetric or centrosymmetric; and when the number of the second touch electrodes in contact with the second arc-shaped edges is even or odd, the touch electrodes in contact with the two second arc-shaped edges are arranged to be axisymmetric or centrosymmetric. With such an arrangement, the processing procedure can be simplified when the touch signal of the touch substrate is processed.

When the number of the first touch electrodes in contact with the first arc-shaped edge is odd, the plurality of touch electrodes in contact with the same first arc-shaped edge can be symmetrically arranged; when the number of the second touch electrodes contacting the second arc-shaped edge is odd, the plurality of touch electrodes contacting the second arc-shaped edge may be symmetrically disposed. Therefore, the process of processing the touch signal by the touch substrate is simplified.

In one embodiment, the touch substrate further comprises a light emitting device layer between the substrate and the touch layer. The light emitting device layer includes a plurality of sub-pixels.

In one embodiment, each touch electrode of the touch substrate includes a plurality of grid-like structures. The sub-pixels of the touch substrate and the grid-shaped structures can be in one-to-one correspondence, and each sub-pixel is located right below the corresponding grid-shaped structure.

In one embodiment, the touch substrate further includes an encapsulation layer located between the light emitting device layer and the touch layer, and the encapsulation layer is a thin film encapsulation layer. The thin film packaging layer comprises an inorganic layer and an organic layer which are alternately arranged, and the uppermost layer of the thin film packaging layer is the inorganic layer. For example, the thin film encapsulation layer includes two inorganic layers and an organic layer between the two inorganic layers.

The application also provides a display device which comprises the touch substrate.

In one embodiment, the display device further comprises a power supply circuit for supplying power to the display panel.

In one embodiment, the display device further comprises a housing, the display panel being disposed within the housing.

The display device provided by the embodiment of the application can be any equipment with a touch display function, such as a mobile phone, a tablet computer, a television, a notebook computer, a vehicle-mounted equipment and the like.

Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.

The disclosure of this patent document contains material which is subject to copyright protection. The copyright is owned by the copyright owner. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the patent and trademark office official records and records.

Claims

1. A touch substrate is characterized by comprising a touch area, wherein at least part of the edge of the touch area is arc-shaped; the touch substrate comprises a substrate and a touch layer positioned on the substrate, and the touch layer is positioned in the touch area;

2. The touch substrate of claim 1, wherein the edges of the touch area include a first arc-shaped edge, the first touch electrode at the same end of the plurality of adjacent first electrode groups is in contact with the first arc-shaped edge, and a vertex of at least one of the plurality of first touch electrodes in contact with the first arc-shaped edge is located on the first arc-shaped edge, and a second area of the first touch electrode with a vertex located on the first arc-shaped edge is larger than the first area; and/or the presence of a gas in the gas,

3. The touch substrate of claim 2, wherein when the edge of the touch area includes a first arc-shaped edge, a vertex of at least one first touch electrode among the plurality of first touch electrodes contacting the first arc-shaped edge is located on the first arc-shaped edge, and edges of the other first touch electrodes are located on the first arc-shaped edge; in the plurality of first touch electrodes in contact with the first arc-shaped edge, the vertex of one first touch electrode in two adjacent first touch electrodes is positioned on the first arc-shaped edge, one edge of the other first touch electrode is positioned on the first arc-shaped edge, and the vertex of the second touch electrode is arranged between the vertex and the edge; and/or the presence of a gas in the gas,

4. The touch substrate of claim 2, wherein when the edge of the touch area includes a first arc-shaped edge, a vertex of two adjacent first touch electrodes among the plurality of first touch electrodes contacting the first arc-shaped edge is located on the first arc-shaped edge, and an edge of the second touch electrode is located between the two vertices; and/or the presence of a gas in the gas,

5. The touch substrate of claim 2, wherein when the edges of the touch area include a first arc-shaped edge, the first arc-shaped edge of the touch area is arc-shaped, and the number of the first touch electrodes in contact with the first arc-shaped edge is odd; and/or when the edges of the touch area comprise second arc-shaped edges, the second arc-shaped edges of the touch area are arc-shaped, and the number of the second touch electrodes in contact with the second arc-shaped edges is odd.

6. The touch substrate of claim 5, wherein when the edge of the touch area comprises a first arc-shaped edge, the plurality of first touch electrodes contacting the first arc-shaped edge are symmetrically disposed; and/or the presence of a gas in the gas,

7. The touch substrate of claim 5, wherein when the edge of the touch area includes a first arc-shaped edge, a vertex of at least one of the first touch electrodes in the middle of the plurality of first touch electrodes contacting the first arc-shaped edge is located on the first arc-shaped edge, and a second area of the first touch electrode gradually decreases from the middle first touch electrode to the first touch electrodes on both sides; and/or the presence of a gas in the gas,

8. The touch substrate of claim 5, wherein when the edge of the touch area includes a first arc-shaped edge, an edge of at least one of the touch electrodes in the middle of the plurality of first touch electrodes in contact with the first arc-shaped edge is located on the first arc-shaped edge, a vertex of the first touch electrode on both sides is located on the first arc-shaped edge, and a second area of the first touch electrode on both sides is larger than a second area of the first touch electrode in the middle; and/or the presence of a gas in the gas,

9. The touch substrate according to claim 5, wherein the edge of the touch area is circular, the edge of the touch area is formed by connecting two first arc-shaped edges and two second arc-shaped edges, the central angles of the first arc-shaped edges and the second arc-shaped edges are 90 degrees, respectively, the two first arc-shaped edges are opposite, and the two second arc-shaped edges are opposite;

10. The touch substrate of claim 2, wherein when the edge of the touch area comprises a first arc-shaped edge, the first arc-shaped edge of the touch area is arc-shaped, and the number of the first touch electrodes in contact with the first arc-shaped edge is even; and/or when the edge of the touch area comprises a second arc-shaped edge, the second arc-shaped edge of the touch area is arc-shaped, and the number of second touch electrodes in contact with the second arc-shaped edge is even.

11. The touch substrate of claim 10, wherein when the edge of the touch area includes a first arc-shaped edge, at least two middle vertices of the first touch electrodes among the plurality of first touch electrodes contacting the first arc-shaped edge are located on the first arc-shaped edge, and an edge of the second touch electrode is located between the two vertices; the second areas of the two first touch electrodes in the middle are equal, and the areas of the first touch electrodes are gradually reduced from the two first touch electrodes in the middle to the first touch electrodes on the two sides; and/or the presence of a gas in the gas,

12. The touch substrate of claim 10, wherein when the edges of the touch area include a first arc-shaped edge, at least two of the first touch electrodes located in the middle are located, one vertex of one first touch electrode is located on the first arc-shaped edge, one edge of the other first touch electrode is located on the first arc-shaped edge, and a vertex of a second touch electrode is located between the vertex and the edge; and/or the presence of a gas in the gas,

when the edges of the touch area comprise second arc-shaped edges, the second touch electrodes are positioned in the middle, one vertex of one second touch electrode is positioned on the second arc-shaped edge, one edge of the other second touch electrode is positioned on the second arc-shaped edge, and the vertex of the first touch electrode is arranged between the vertex and the edge.

13. The touch substrate of claim 12, wherein the edge of the touch area is circular, and the edge of the touch area is formed by connecting two first arc-shaped edges and two second arc-shaped edges; the central angles corresponding to the first arc-shaped edges and the second arc-shaped edges are respectively 90 degrees, the two first arc-shaped edges are opposite, and the two second arc-shaped edges are opposite;

14. A display device comprising the touch substrate according to any one of claims 1 to 13.