Touch panel and display device

Abstract

A touch panel and a display device are provided, the touch panel including a first touch electrode including a first side protrusion, a first corner protrusion, and an adjacent first side protrusion, the first side protrusion including a second side sub-protrusion, the first corner protrusion including a second corner sub-protrusion, and a second touch electrode including a second side protrusion and a second corner protrusion, the second side protrusion including an adjacent second side protrusion, the second side protrusion including a fourth side sub-protrusion, the second corner protrusion including a fourth corner sub-protrusion, and an area of ​​at least one of the second corner sub-protrusion and the second side sub-protrusion of the adjacent first side protrusion is smaller than an area of ​​the other of the second side sub-protrusions, and / or an area of ​​at least one of the fourth corner sub-protrusion and the fourth side sub-protrusion of the adjacent second side protrusion is smaller than an area of ​​the other of the fourth side sub-protrusions.

Description

[Technical Field]

[0001] The present invention relates to the field of semiconductor technology, and in particular to touch panels and display devices. [Background technology]

[0002] In a touch panel, emitter electrodes and collector electrodes are arranged on the panel in a cross-like manner along directions perpendicular to each other, thereby enabling detection of a touch position. Summary of the Invention [Means for solving the problem]

[0003] In an embodiment of the present disclosure, a touch panel and a display device are provided, the touch panel comprising:

[0004] a first touch electrode including a plurality of first touch electrode blocks sequentially arranged and electrically connected along a first direction, the first touch electrode block including a first body, a first side edge protrusion disposed on a side edge of the first body and extending along a direction perpendicular to the side edge, and a first corner protrusion disposed in a corner region of the first body and extending along a direction perpendicular to the side edge, two adjacent first touch electrode blocks arranged along the first direction are electrically connected by the first corner protrusion, the first side edge protrusion includes an adjacent first side edge protrusion adjacent to the first corner protrusion and disposed on a different side edge, the first side edge protrusion includes a first side edge sub-protrusion and a second side edge sub-protrusion sequentially overlapping along the direction perpendicular to the side edge and on a side away from the side edge, and the first corner protrusion includes a first corner sub-protrusion and a second corner sub-protrusion sequentially overlapping along the direction perpendicular to the side edge and on a side away from the side edge;

[0005] the second touch electrode block includes a second body, a second side edge protrusion disposed on a side edge of the second body and extending along a direction perpendicular to the side edge, and a second corner protrusion disposed on a corner region of the second body and extending along a direction perpendicular to the side edge, and two adjacent second touch electrode blocks arranged along the second direction are electrically connected by the second corner protrusion, and the second side edge protrusion includes an adjacent second side edge protrusion disposed on a different side edge adjacent to the second corner protrusion, and the second side edge protrusion a second touch electrode including a third side edge sub-protrusion and a fourth side edge sub-protrusion that overlap sequentially along a direction perpendicular to the side edge where the second corner protrusion is located and on a side away from the side edge where the second corner protrusion is located, and a third corner sub-protrusion and a fourth corner sub-protrusion that overlap sequentially along a direction perpendicular to the side edge where the second corner protrusion is located and on a side away from the side edge where the second corner protrusion and the second side edge sub-protrusion of the adjacent first side edge protrusion have an area smaller than an area of ​​the second side edge sub-protrusion of the other first side edge protrusion, and / or an area of ​​at least one of the fourth corner sub-protrusion and the fourth side edge sub-protrusion of the adjacent second side edge protrusion have an area smaller than an area of ​​the fourth side edge sub-protrusion of the other second side edge protrusion; Includes.

[0006] In one possible embodiment, the height in a direction perpendicular to the side on which the second corner sub-projection is located is smaller than the height in a direction perpendicular to the side on which the second side sub-projection is located, so that the area of ​​the second corner sub-projection is smaller than the area of ​​the second side sub-projection of the other first side projection, and / or the height in a direction perpendicular to the side on which the fourth corner sub-projection is located is smaller than the height in a direction perpendicular to the side on which the fourth side sub-projection is located, so that the area of ​​the fourth corner sub-projection is smaller than the area of ​​the fourth side sub-projection of the other second side projection.

[0007] In one possible embodiment, the height of the second corner sub-projection in a direction perpendicular to the side edge on which the second corner sub-projection is located is between one-sixth and one-half of the height of the second side sub-projection in a direction perpendicular to the side edge on which the second side sub-projection is located;

[0008] The height in a direction perpendicular to the side on which the fourth corner sub-projection is located is one-sixth to one-half of the height in a direction perpendicular to the side on which the fourth side sub-projection is located.

[0009] In one possible embodiment, the second corner sub-projection has a first cutout on the side facing the adjacent first touch electrode block, and / or the fourth corner sub-projection has a second cutout on the side facing the adjacent second touch electrode block.

[0010] In one possible embodiment, the adjacent first side edge protrusion has a third cutout on a side facing the adjacent first touch electrode block of the second side edge sub-protrusion,

[0011] And / or, the adjacent second side projection has a fourth cutout portion on a side of the fourth side sub-projection facing the adjacent second touch electrode block.

[0012] In one possible embodiment, the width of the adjacent first side edge protrusion in a direction parallel to the side edge on which the second side edge sub-protrusion is located is smaller than the width of the other second side edge sub-protrusion in a direction parallel to the side edge on which the other second side edge sub-protrusion is located;

[0013] And / or, the width of the adjacent second side edge protrusion in a direction parallel to the side edge on which the fourth side edge sub-protrusion is located is smaller than the width of the other fourth side edge sub-protrusion in a direction parallel to the side edge on which the other fourth side edge sub-protrusion is located.

[0014] In one possible embodiment, the shape of the first cutout is triangular or rectangular, the shape of the second cutout is triangular or rectangular, the shape of the third cutout is triangular or rectangular, and the shape of the fourth cutout is triangular or rectangular.

[0015] In one possible embodiment, the first side edge protrusion includes a separate first side edge protrusion disposed on the same side as the adjacent first side edge protrusion and disposed at a corner adjacent to the corner where the first corner protrusion is located, and the area of ​​the second side edge sub-protrusion of the separate first side edge protrusion is smaller than the area of ​​the second side edge sub-protrusion of the other first side edge protrusion;

[0016] And / or, the second side edge protrusion includes a separate second side edge protrusion that is arranged on the same side as the adjacent second side edge protrusion and at a corner adjacent to the corner at which the second corner protrusion is located, and the area of ​​the fourth side edge sub-protrusion of the separate second side edge protrusion is smaller than the area of ​​the fourth side edge sub-protrusion of the other second side edge protrusion.

[0017] In one possible embodiment, the height of the separated first side edge protrusion in a direction perpendicular to the side edge on which the second side edge sub-protrusion is located is smaller than the height of the other first side edge protrusion in a direction perpendicular to the side edge on which the second side edge sub-protrusion is located;

[0018] The height of the separated second side edge protrusion in a direction perpendicular to the side edge on which the fourth side edge sub-protrusion is located is smaller than the height of the other second side edge protrusion in a direction perpendicular to the side edge on which the fourth side edge sub-protrusion is located.

[0019] In one possible embodiment, the height of the separated first side edge protrusion in a direction perpendicular to the side edge on which the second side edge sub-protrusion is located is between one-sixth and one-half of the height of the other first side edge protrusion in a direction perpendicular to the side edge on which the second side edge sub-protrusion is located;

[0020] The height of the separated second side edge protrusion in a direction perpendicular to the side edge on which the fourth side edge sub-protrusion is located is between one-sixth and one-half of the height of the other second side edge protrusion in a direction perpendicular to the side edge on which the fourth side edge sub-protrusion is located.

[0021] In one possible embodiment, the separated first side protrusion has a fifth cutout on a side facing the adjacent first touch electrode;

[0022] And / or, the separated second side protrusion has a sixth cutout portion on a side facing the adjacent second touch electrode.

[0023] In one possible embodiment, the fifth cutout is triangular or rectangular in shape, and the sixth cutout is triangular or rectangular in shape.

[0024] In one possible embodiment, the width of the second side sub-projection in a direction parallel to the side on which it is located is smaller than the width of the first side sub-projection in a direction parallel to the side on which it is located;

[0025] The width in a direction parallel to the side edge on which the second corner sub-projection is located is smaller than the width in a direction parallel to the side edge on which the first corner sub-projection is located.

[0026] In one possible embodiment, the first corner protrusion includes a first corner extension portion extending from the first corner sub-protrusion to the adjacent first touch electrode block along a direction parallel to a side edge located thereon, and the two adjacent first touch electrode blocks are electrically connected by the first corner extension portion;

[0027] The second corner protrusion includes a second corner extension portion that extends toward the adjacent second touch electrode block along a direction parallel to the side edge located from the first corner sub-protrusion, and the two adjacent second touch electrode blocks are electrically connected by the second corner extension portion.

[0028] In one possible embodiment, the first touch electrode block and the second touch electrode block include a plurality of metal wires, the plurality of metal wires form a metal mesh, and the boundary of the first touch electrode block and the boundary of the second touch electrode block are divided by a break in the metal mesh.

[0029] In one possible embodiment, at least a portion of the metal mesh within the first corner protrusion is broken, and at least a portion of the metal mesh within the second corner protrusion is broken.

[0030] In one possible embodiment, the first touch electrode blocks of the same first touch electrode are connected together and bridge-connected to the second touch electrode blocks of the same second touch electrode by a bridge portion.

[0031] In one possible embodiment, the first touch electrode and the second touch electrode are arranged on the same layer and made of the same material, and an insulating layer is provided between the bridge portion and the layer on which the second touch electrode block is located, and two adjacent second touch electrode blocks are connected by the bridge portion through a via that penetrates the insulating layer.

[0032] In one possible embodiment, the material of the bridge portion is the same as the material of the second touch electrode.

[0033] In one possible embodiment, the first body and the second body have a plurality of floating electrodes therein.

[0034] An embodiment of the present disclosure further provides a display device including a display panel and the touch panel according to an embodiment of the present disclosure disposed on a light-transmitting side of the display panel. [Brief explanation of the drawings]

[0035] [Figure 1] FIG. 1 is a schematic plan view of a touch display panel according to an embodiment of the present disclosure. [Figure 2A] 2 is an enlarged schematic diagram of the dashed frame S in FIG. 1. FIG. [Figure 2B] 2 is an enlarged schematic diagram of the dashed frame S in FIG. 1. FIG. [Figure 3] 2 is an enlarged schematic diagram of the dashed frame S in FIG. 1. FIG. [Figure 4A] 2 is an enlarged schematic diagram of the dashed frame S in FIG. 1. FIG. [Figure 4B] 2 is an enlarged schematic diagram of the dashed frame S in FIG. 1. FIG. [Figure 5A] 2 is an enlarged schematic diagram of the dashed frame S in FIG. 1. FIG. [Figure 5B] 2 is an enlarged schematic diagram of the dashed frame S in FIG. 1. FIG. [Figure 6A] 2 is an enlarged schematic diagram of the dashed frame S in FIG. 1. FIG. [Figure 6B] 2 is an enlarged schematic diagram of the dashed frame S in FIG. 1. FIG. [Figure 7] 4B is a partially enlarged schematic view of a connection channel of the second touch electrode of FIG. 4A. FIG. [Figure 8] 1 is a cross-sectional schematic diagram of a touch panel according to an embodiment of the present disclosure. [Figure 9] 1 is a cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure. [Figure 10] FIG. 2 is a schematic diagram illustrating a relationship between a first touch electrode and an anode according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0036] In order to clarify the objectives, technical solutions and advantages of the embodiments of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. It is clear that the described embodiments are not all embodiments but are a part of the embodiments of the present disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of the present disclosure without any creative work belong to the scope of protection of the present disclosure.

[0037] Unless otherwise defined, technical or scientific terms used in this disclosure should have their ordinary meanings as understood by those of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not denote any order, quantity, or importance, but are merely used to distinguish between different components. Similar terms, such as "comprise" or "contain," mean that the element or object appearing before the term covers the elements or objects listed thereafter and their equivalents, without excluding other elements or objects. Similar terms, such as "couple" or "connect," are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" only denote relative positions; if the absolute position of the described object changes, the relative positions may change accordingly.

[0038] To keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed descriptions of known functions and components.

[0039] The electrode pattern in the display area (AA) consists of electrode pattern cells. In the electrode arrangement proposed by Flexible Multiple Layer on Cell (FMLOC) technology, the Tx electrode and Rx electrode are arranged on the same layer, and the electrode pattern cell includes three parts: Tx (emitter electrode), Rx (collector electrode), and Dummy (non-active area). To increase the mutual capacitance between the Tx and Rx electrodes and enhance touch performance, the boundary between Tx and Rx is generally designed with a convex shape, with the convex size matched and the convex shapes of Tx and Rx interlocking, increasing the area of ​​the Tx and Rx boundary. However, due to factors such as pixel size and pattern cell size, the electrode pattern in some areas has poor connectivity, increasing the risk of subsequent touch failure.

[0040] Therefore, please refer to FIG. 1, FIG. 2A, FIG. 2B, and FIG. 4A, where FIG. 2A, FIG. 2B, and FIG. 4A are enlarged schematic diagrams of the dashed frame S in FIG. 1, and the touch panel according to the embodiment of the present disclosure has:

[0041] The touch panel 10 includes a plurality of first touch electrode blocks 10 sequentially arranged and electrically connected along a first direction A1. As shown in FIG. 2A , the first touch electrode block 10 includes a first body 100, a first side edge protrusion 11 disposed on a side edge of the first body 100 and extending along a direction perpendicular to the side edge (shown by arrow B1 in FIG. 2A ), and a first corner protrusion 12 disposed on a corner region of the first body 100 and extending along a direction perpendicular to the side edge (shown by arrow B1 in FIG. 2A ). Two adjacent first touch electrode blocks 10 arranged along the first direction A1 are connected to each other by the first corner protrusion 11. a first touch electrode 1 electrically connected by a first corner protrusion 12, the first side protrusion 11 including an adjacent first side protrusion 1101 adjacent to the first corner protrusion 12 and disposed on a different side, the first side protrusion 11 including a first side sub-protrusion 111 and a second side sub-protrusion 112 sequentially overlapping along a direction perpendicular to the side where the first side protrusion 11 is located and on a side away from the side where the first side protrusion 11 is located (indicated by arrow B1 in FIG. 2A ), and the first corner protrusion 12 including a first corner sub-protrusion 121 and a second corner sub-protrusion 122 sequentially overlapping along a direction perpendicular to the side where the first corner protrusion 12 is located and on a side away from the side where the first corner protrusion 12 is located (indicated by arrow B1 in FIG. 2A );

[0042] The touch panel includes a plurality of second touch electrode blocks 20 sequentially arranged and electrically connected along a second direction A2, and the second touch electrodes 2 and the first touch electrodes 1 intersect and are insulated. As shown in FIG. 2B , the second touch electrode block 20 includes a second body 200, a second side edge protrusion 21 disposed on a side edge of the second body 200 and extending along a direction perpendicular to the side edge (shown by arrow B2 in FIG. 2B ), and a second corner protrusion 22 disposed on a corner region of the second body and extending along a direction perpendicular to the side edge (shown by arrow B2 in FIG. 2B ). Two adjacent second touch electrode blocks 20 arranged along the second direction A2 are electrically connected by the second corner protrusion 22, and the second side edge protrusion 21 includes an adjacent second side edge protrusion 2101 disposed on a different side edge adjacent to the second corner protrusion 22. , the second corner protrusion 22 includes a third side edge sub-protrusion 211 and a fourth side edge sub-protrusion 212 that are sequentially overlapped along a direction perpendicular to the side edge where the second corner protrusion 22 is located and on a side away from the side edge where the second corner protrusion 22 is located (shown by arrow B2 in FIG. 2B ), and the second corner protrusion 22 includes a third corner sub-protrusion 221 and a fourth corner sub-protrusion 222 that are sequentially overlapped along a direction perpendicular to the side edge where the second corner protrusion 22 is located and on a side away from the side edge where the second corner protrusion 22 is located (shown by arrow B2 in FIG. 2B ). a second touch electrode 2, wherein the area of ​​at least one of the fourth corner protrusion 222 and the second side sub-protrusion 112 of the adjacent first side protrusion 1101 is smaller than the area of ​​the second side sub-protrusion 112 of the other first side protrusion 11, and / or the area of ​​at least one of the fourth corner sub-protrusion 222 and the fourth side sub-protrusion 212 of the adjacent second side protrusion 2101 is smaller than the area of ​​the fourth side sub-protrusion 212 of the other second side protrusion 21; Includes.

[0043] In the embodiment of the present disclosure, the first touch electrode block 10 includes a first side edge protrusion 11 and a first corner protrusion 12 connecting two adjacent first touch electrode blocks 10, the first side edge protrusion 11 includes a second side edge sub-protrusion 112, the first corner protrusion 12 includes a second corner sub-protrusion 122, and the second touch electrode 20 includes a second side edge protrusion 21 and a second corner protrusion 22 connecting two adjacent second touch electrode blocks 20. and the area of ​​at least one of the second corner sub-projection 122 and the second side edge sub-projection 112 of the adjacent first side edge projection 1101 is smaller than the area of ​​the second side edge sub-projection 112 of the other first side edge projection 11, and further, the width of the region between the second corner sub-projection 122 and the first side edge projection 11 of the opposing first touch electrode block 10 (the region indicated by the dashed line S3 in FIG. 2A ), i.e., the width of the connecting channel of the adjacent second touch electrode block 20, is smaller than the area of ​​the second side edge sub-projection 112 of the other first side edge projection 11. The width can be increased, thereby improving the problem of poor connectivity and high resistance when the connection channel of the adjacent second touch electrode block 20 is narrow; the second side edge protrusion 21 includes a fourth side edge sub-protrusion 212, the second corner protrusion 22 includes a fourth corner sub-protrusion 222, and / or the area of ​​at least one of the fourth corner sub-protrusion 222 and the fourth side edge sub-protrusion 212 of the adjacent second side edge protrusion 2101 is smaller than the area of ​​the fourth side edge sub-protrusion 212 of the other second side edge protrusion 21; and further, the width of the area between the fourth corner sub-protrusion 222 and the opposing second side edge protrusion 21 of the second touch electrode block 20 (the area indicated by the dashed line S4 in Figure 2B), i.e., the width of the connection channel of the adjacent first touch electrode block 10, can be increased, thereby improving the problem of poor connectivity and high resistance when the connection channel of the adjacent first touch electrode block 10 is narrow.

[0044] In one possible embodiment, referring to FIG. 2A , the height h1 of the second corner sub-protrusion 122 in the direction perpendicular to the side edge on which it is located is smaller than the height h2 of the second side edge sub-protrusion 112 in the direction perpendicular to the side edge on which it is located, so that the area of ​​the second corner sub-protrusion 122 is smaller than the area of ​​the second side edge sub-protrusion 122 of other first side edge protrusions 11 (excluding the adjacent first side edge protrusion 1101), i.e., the distance from the end of the second corner sub-protrusion 122 to the dashed line S1 is greater than the distance from the end of the second side edge sub-protrusion 112 to the dashed line S1. In this way, the area of ​​the second corner sub-protrusion 122 can be smaller than the area of ​​the second side edge sub-protrusion 112, which makes it easier to create the pattern and simplifies the manufacturing process of the touch display panel. 2B, the height h3 in the direction perpendicular to the side edge on which the fourth corner sub-protrusion 222 is located is smaller than the height h4 in the direction perpendicular to the side edge on which the fourth side edge sub-protrusion 212 is located, so that the area of ​​the fourth corner sub-protrusion 222 is smaller than the area of ​​the fourth side edge sub-protrusion 222 of other second side edge protrusions 21 (excluding the adjacent second side edge protrusion 2101), i.e., the distance from the end of the fourth corner sub-protrusion 222 to the dashed line S2 is greater than the distance from the end of the fourth side edge sub-protrusion 212 to the dashed line S2, and thus the area of ​​the fourth corner sub-protrusion 222 is smaller than the area of ​​the fourth side edge sub-protrusion 212, which makes it easier to create the pattern and simplifies the manufacturing process of the touch display panel.

[0045] Specifically, the height h1 of the second corner sub-protrusion 122 in the direction perpendicular to the side edge on which it is located is between one-sixth and one-half of the height h2 of the second side edge sub-protrusion 112 in the direction perpendicular to the side edge on which it is located. In this way, the problem of poor connectivity and high resistance between the adjacent second touch electrode blocks 20 is alleviated, and at the same time, the area of ​​the boundary between the first touch electrode block 10 and the second touch electrode block 20 is increased, and a large mutual capacitance value is provided between the first touch electrode block 10 and the second touch electrode block 20, so that the touch panel has enhanced touch performance. In this case, the height h3 in the direction perpendicular to the side edge on which the fourth corner sub-protrusion 222 is located is one-sixth to one-half of the height h4 in the direction perpendicular to the side edge on which the fourth side edge sub-protrusion 212 is located. In this way, the problem of poor connectivity and high resistance between adjacent first touch electrode blocks 10 is improved, and at the same time, the area of ​​the boundary between the first touch electrode block 10 and the second touch electrode block 20 is increased, and a large mutual capacitance value is provided between the first touch electrode block 10 and the second touch electrode block 20, thereby providing the touch panel with enhanced touch performance.

[0046] In one possible embodiment, referring to FIG. 3 , the second corner sub-protrusion 122 has a first cutout K1 on the side facing the adjacent first touch electrode block 10, and the area where the first cutout K1 is located is for arranging the second touch electrode block 20, so that the area of ​​the second corner sub-protrusion 122 can be made smaller than that of the second side sub-protrusion 112, which makes it easier to create patterns and simplifies the manufacturing process of the touch display panel; and / or the fourth corner sub-protrusion 222 has a second cutout K2 on the side facing the adjacent second touch electrode block 20, and the area where the second cutout K2 is located is for arranging the first touch electrode block 10, so that the area of ​​the fourth corner sub-protrusion 222 is smaller than that of the fourth side sub-protrusion 212, which makes it easier to create patterns and simplifies the manufacturing process of the touch display panel.

[0047] In one possible embodiment, referring to FIG. 4A , the second side edge sub-projection 112 of the adjacent first side edge protrusion 1101 has a third cutout portion K3 on the side facing the adjacent first touch electrode block 10, thus further increasing the width of the connection channel of the adjacent second touch electrode block 20, and / or the fourth side edge sub-projection 212 of the adjacent second side edge protrusion 2101 has a fourth cutout portion K4 on the side facing the adjacent second touch electrode block 20, thus further increasing the width of the connection channel of the adjacent first touch electrode block 10.

[0048] In addition, in the embodiments of the present disclosure, in order to clearly explain the pattern shapes of the second corner sub-protrusion 122 and the fourth corner sub-protrusion 222 after adjustment, the second corner sub-protrusion 122 has a first cut-out portion K1 and the fourth corner sub-protrusion 222 has a second cut-out portion K2 as an example. In specific implementation, in the manufacturing process, the first cut-out portion K1 is a portion removed from the second corner sub-protrusion 122 and is not a component belonging to the second corner sub-protrusion 122, and the area where the first cut-out portion K1 is located is for arranging the second touch electrode block 20. Similarly, in the manufacturing process, the second cut-out portion K2 is a portion removed from the fourth corner sub-protrusion 222 and is not a component belonging to the fourth corner sub-protrusion 222, and the area where the second cut-out portion K2 is located is for arranging the first touch electrode block 10. Similarly, in the manufacturing process, the third cutout K3 is a portion removed from the adjacent first side edge protrusion 1101 and is not a configuration belonging to the adjacent first side edge protrusion 1101, and the area where the second cutout K2 is located is for disposing the second touch electrode block 20. Similarly, in the manufacturing process, the fourth cutout K4 is a portion removed from the adjacent second side edge protrusion 2101 and is not a configuration belonging to the adjacent second side edge protrusion 2101, and the area where the fourth cutout K4 is located is for disposing the first touch electrode block 10.

[0049] In one possible embodiment, referring to Figure 4B, the width a1 in the direction parallel to the side on which the second side sub-projection 112 of the adjacent first side projection 1101 is located is smaller than the width a2 in the direction parallel to the side on which the other second side sub-projection 112 is located, thus allowing the width of the connection channel of the adjacent second touch electrode block 20 to be further increased, and / or the width a3 in the direction parallel to the side on which the fourth side sub-projection 212 of the adjacent second side projection 2101 is located is smaller than the width a4 in the direction parallel to the side on which the other fourth side sub-projection 212 is located, thus allowing the width of the connection channel of the adjacent first touch electrode block 10 to be further increased.

[0050] In one possible embodiment, the shape of the first cutout K1 is triangular as shown in FIG. 3, or the shape of the first cutout K1 may be rectangular, the shape of the second cutout K2 is triangular as shown in FIG. 3, or the shape of the second cutout K2 may be rectangular, the shape of the third cutout K3 is triangular as shown in FIG. 4A, or the shape of the third cutout K3 may be rectangular, and the shape of the fourth cutout K4 is triangular as shown in FIG. 4A, or the shape of the fourth cutout K4 may be rectangular.

[0051] In one possible embodiment, referring to Figure 5A, the first side edge protrusion 11 includes a separate first side edge protrusion 1102 that is arranged on the same side as the adjacent first side edge protrusion 1101 and at the corner adjacent to the corner where the first corner protrusion 12 is located, and the area of ​​the second side edge sub-protrusion 112 of the separate first side edge protrusion 1102 is smaller than the area of ​​the second side edge sub-protrusion 112 of the other first side edge protrusions 11; and / or, referring to Figure 5B, the second side edge protrusion 21 includes a separate second side edge protrusion 2102 that is arranged on the same side as the adjacent second side edge protrusion 2101 and at the corner adjacent to the corner where the second corner protrusion 22 is located, and the area of ​​the fourth side edge sub-protrusion 212 of the separate second side edge protrusion 2102 is smaller than the area of ​​the fourth side edge sub-protrusion 212 of the other second side edge protrusions 21. In the embodiment of the present disclosure, the first side protrusion 11 includes a separated first side protrusion 1102, and the area of ​​the second side sub-protrusion 112 of the separated first side protrusion 1102 is smaller than the area of ​​the second side sub-protrusion 112 of the other first side protrusions 11, which can improve the problem of poor connectivity of the second touch electrode block 20 in the corner non-connection area. If the separated first side protrusion 1102 is designed to match the height of the other first side protrusions 11 due to the convex design, some electrodes at the corners of the second touch electrode block 20 cannot be connected to the second touch electrodes, resulting in an invalid touch area. The second side protrusion 21 includes a separated second side protrusion 2102, and the area of ​​the fourth side sub-protrusion 212 of the separated second side protrusion 2102 is smaller than the area of ​​the fourth side sub-protrusion 212 of the other second side protrusions 21, which can improve the problem of poor connectivity of the first touch electrode block 10 in the corner non-connected area. When the separated second side protrusion 2102 matches the height of the other second side protrusions 21 due to the convex design, the problem of some electrodes at the corners of the first touch electrode block 10 not being able to connect to the first touch electrodes 1 and forming invalid touch areas is improved.

[0052] In one possible embodiment, referring to FIG. 5A , the height h5 of the second side sub-projection 112 of the separated first side projection 1102 in a direction perpendicular to the side on which it is located is smaller than the height h6 of the second side sub-projection 112 of the other first side projections 11 in a direction perpendicular to the side on which it is located, thus making the area of ​​the second side sub-projection 112 of the separated first side projection 1102 smaller than the area of ​​the second side sub-projection 112 of the other first side projections 11. Referring to Figure 5B, the height h7 in a direction perpendicular to the side on which the fourth side sub-protrusion 212 of the separated second side protrusion 2102 is located is smaller than the height h8 in a direction perpendicular to the side on which the fourth side sub-protrusion 212 of the other second side protrusions 21 is located, and thus the area of ​​the fourth side sub-protrusion 212 of the separated second side protrusion 2102 can be smaller than the area of ​​the fourth side sub-protrusion 212 of the other second side protrusions 21.

[0053] In one possible embodiment, referring to FIG. 5A , the height h5 of the separated first side protrusion 1102 in the direction perpendicular to the side on which the second side sub-protrusion 112 is located is one-sixth to one-half of the height h6 of the other first side protrusion 11 in the direction perpendicular to the side on which the second side sub-protrusion 112 is located, thereby improving the problem of poor connectivity of the second touch electrode block 20 in the corner non-connection area, and at the same time, increasing the boundary area between the first touch electrode block 10 and the second touch electrode block 20, and providing a large mutual capacitance value between the first touch electrode block 10 and the second touch electrode block 20, thereby providing the touch panel with enhanced touch performance. Referring to FIG. 5A , the height h7 of the separated second side protrusion 2102 in the direction perpendicular to the side on which the fourth side sub-protrusion 212 is located is one-sixth to one-half of the height h8 of the other second side protrusion 21 in the direction perpendicular to the side on which the fourth side sub-protrusion 212 is located. In this way, the problem of poor connectivity of the first touch electrode block 10 in the corner non-connection area can be improved, and at the same time, the boundary area between the first touch electrode block 10 and the second touch electrode block 20 can be increased, and a large mutual capacitance value can be provided between the first touch electrode block 10 and the second touch electrode block 20, thereby providing the touch panel with enhanced touch performance.

[0054] In one possible embodiment, referring to FIG. 6A, the separated first side edge protrusion 1102 has a fifth cutout portion K5 on the side facing the adjacent first touch electrode 1, thus improving the problem of poor connectivity of the second touch electrode block 20 in the corner non-connection area; and / or referring to FIG. 6B, the separated second side edge protrusion 2102 has a sixth cutout portion K6 on the side facing the adjacent second touch electrode 2, thus improving the problem of poor connectivity of the first touch electrode block 10 in the corner non-connection area.

[0055] In one possible embodiment, referring to FIG. 6A, the shape of the fifth cutout K5 is triangular or rectangular, and referring to FIG. 6B, the shape of the sixth cutout K6 is triangular or rectangular.

[0056] In one possible embodiment, referring to Figure 2A, the width h9 in a direction parallel to the side on which the second side sub-protrusion 112 is located is smaller than the width h10 in a direction parallel to the side on which the first side sub-protrusion 111 is located, and referring to Figure 2B, the width h11 in a direction parallel to the side on which the second corner sub-protrusion 122 is located is smaller than the width h12 in a direction parallel to the side on which the first corner sub-protrusion 121 is located.

[0057] In one possible embodiment, referring to FIG. 2A, the first corner protrusion 12 includes a first corner extension portion 123 extending from the first corner sub-protrusion 121 toward the adjacent first touch electrode block 10 along a direction parallel to the side edge located therefrom, and the two adjacent first touch electrode blocks 10 are electrically connected by the first corner extension portion 123; referring to FIG. 2B, the second corner protrusion 22 includes a second corner extension portion 223 extending from the first corner sub-protrusion 221 toward the adjacent second touch electrode block 20 along a direction parallel to the side edge located therefrom, and the two adjacent second touch electrode blocks 20 are electrically connected by the second corner extension portion 223.

[0058] In one possible embodiment, referring to FIG. 7, the first touch electrode block 10 and the second touch electrode block 20 include a plurality of metal wires, which form a metal mesh, and the boundary of the first touch electrode block 10 and the boundary of the second touch electrode block 20 are divided by a break in the metal mesh.

[0059] In one possible embodiment, referring to FIG. 7, at least a portion of the metal mesh inside the first corner projection 12 is broken, and at least a portion of the metal mesh inside the second corner projection 22 is broken.

[0060] In one possible embodiment, referring to FIG. 1, each first touch electrode block 10 of the same first touch electrode 1 is connected together and bridge-connected to each second touch electrode block 20 of the same second touch electrode 2 by a bridge section 3.

[0061] In one possible embodiment, refer to FIG. 8, where FIG. 8 is a cross-sectional schematic view along dashed line CC1 in FIG. 1, the first touch electrode 1 and the second touch electrode 2 are arranged on the same layer and made of the same material, with an insulating layer between the bridge portion 3 and the layer on which the second touch electrode block 20 is located, and two adjacent second touch electrode blocks 20 are connected by the bridge portion 3 through a via K penetrating the insulating layer.

[0062] In one possible embodiment, the material of the bridge portion 3 is the same as the material of the second touch electrode 2 .

[0063] 2A, in one possible embodiment, the first body 10 and the second body 20 have a plurality of floating electrodes 4. Specifically, the floating electrodes 4 can be understood as a structure in which an electrode pattern is simply provided, but no electrical signal is applied to the electrode pattern during use.

[0064] An embodiment of the present disclosure further provides a display device including a display panel and a touch panel according to an embodiment of the present disclosure disposed on a light-transmitting side of the display panel.

[0065] Specifically, referring to FIG. 9, the display device may include a base substrate 100 and a display layer 6 arranged between the base substrate 100 and a bridge portion 3, and a package layer 7 arranged between the display layer 6 and the bridge portion 3.

[0066] Specifically, referring to FIG. 10 , the display layer 6 may specifically include a light-emitting element, and the light-emitting element may specifically include an anode layer having a plurality of anodes 61 and a pixel definition layer having pixel openings 62, and the metal meshes constituting the first touch electrode 1 and the second touch electrode 2 correspond one-to-one to the pixel openings 62.

[0067] Specifically, the display layer 6 may include a driving layer for driving the light-emitting elements, and the driving layer may include a pixel circuit for driving the light-emitting elements to emit light, and the pixel circuit may specifically include a thin film transistor and a capacitor. The specific structures of the pixel circuit and the light-emitting elements may be similar to those of the organic light-emitting display panel and the quantum dot light-emitting display panel in the prior art, and description thereof will be omitted in this disclosure.

[0068] In specific implementations, in the embodiments of the present disclosure, the display device may be any product or component with a display function, such as a mobile phone, a tablet, a television, a display, a laptop, a digital photo frame, a navigation system, a wristwatch, a handle, etc. All other essential components of the display device are components that are understood by those skilled in the art to be essential, and therefore, description thereof will be omitted here and is not intended to limit the present disclosure.

[0069] Although preferred embodiments of the present invention have been described, additional changes and modifications may be made to these embodiments once the basic creative concept becomes known to those skilled in the art. It is therefore intended that the appended claims be interpreted to cover the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0070] It is apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A touch panel including a first touch electrode and a second touch electrode, the first touch electrode includes a plurality of first touch electrode blocks sequentially arranged and electrically connected along a first direction, the first touch electrode block including a first body, a first side edge protrusion disposed on a side edge of the first body and extending along a direction perpendicular to the side edge, and a first corner protrusion disposed in a corner region of the first body and extending along a direction perpendicular to the side edge, two adjacent first touch electrode blocks arranged along the first direction are electrically connected by the first corner protrusion, the first side edge protrusion includes an adjacent first side edge protrusion adjacent to the first corner protrusion and disposed on a different side edge, the first side edge protrusion includes a first side edge sub-protrusion and a second side edge sub-protrusion sequentially overlapping along the direction perpendicular to the side edge and on a side away from the side edge, and the first corner protrusion includes a first corner sub-protrusion and a second corner sub-protrusion sequentially overlapping along the direction perpendicular to the side edge and on a side away from the side edge, the second touch electrode includes a plurality of second touch electrode blocks sequentially arranged and electrically connected along a second direction, the second touch electrode and the first touch electrode intersect and are insulated from each other, the second touch electrode block includes a second body, a second side edge protrusion disposed on a side edge of the second body and extending along a direction perpendicular to the side edge, and a second corner protrusion disposed on a corner region of the second body and extending along a direction perpendicular to the side edge, two adjacent second touch electrode blocks arranged along the second direction are electrically connected by the second corner protrusion, and the second side edge protrusion includes an adjacent second side edge protrusion adjacent to the second corner protrusion and arranged on a different side edge, the second side edge protrusion includes a third side edge sub-protrusion and a fourth side edge sub-protrusion that overlap in sequence along a direction perpendicular to the side edge where the second side edge protrusion is located and on a side away from the side edge where the second corner protrusion includes a third corner sub-protrusion and a fourth corner sub-protrusion that overlap in sequence along a direction perpendicular to the side edge where the second side edge protrusion is located and on a side away from the side edge where the second corner sub-protrusion and the second side edge sub-protrusion of the adjacent first side edge protrusion have an area smaller than an area of ​​the second side edge sub-protrusion of the other first side edge protrusion, and / or the fourth corner sub-protrusion and the fourth side edge sub-protrusion of the adjacent second side edge protrusion have an area smaller than an area of ​​the fourth side edge sub-protrusion of the other second side edge protrusion, the second corner sub-projection has a first cutout on a side facing the adjacent first touch electrode block, and / or the fourth corner sub-projection has a second cutout on a side facing the adjacent second touch electrode block; Touch panel.

2. The touch panel of claim 1, wherein the height in a direction perpendicular to the side edge on which the second corner sub-protrusion is located is smaller than the height in a direction perpendicular to the side edge on which the second side edge sub-protrusion is located so that the area of ​​the second corner sub-protrusion is smaller than the area of ​​the second side edge sub-protrusion of the other first side edge protrusion, and / or the height in a direction perpendicular to the side edge on which the fourth corner sub-protrusion is located is smaller than the height in a direction perpendicular to the side edge on which the fourth side edge sub-protrusion is located so that the area of ​​the fourth corner sub-protrusion is smaller than the area of ​​the fourth side edge sub-protrusion of the other second side edge protrusion.

3. a height in a direction perpendicular to the side edge on which the second corner sub-projection is located is between one-sixth and one-half of a height in a direction perpendicular to the side edge on which the second side edge sub-projection is located; a height in a direction perpendicular to the side edge on which the fourth corner sub-projection is located is one-sixth to one-half of a height in a direction perpendicular to the side edge on which the fourth side edge sub-projection is located; The touch panel according to claim 2 .

4. a third cutout portion is provided on a side of the adjacent first side projection facing the adjacent first touch electrode block of the second side sub-projection; and / or the adjacent second side projection has a fourth cutout on a side of the fourth side sub-projection facing the adjacent second touch electrode block. The touch panel according to claim 1 .

5. the width of the adjacent first side edge protrusion in a direction parallel to the side edge on which the second side edge sub-protrusion is located is smaller than the width of the other second side edge protrusion in a direction parallel to the side edge on which the second side edge sub-protrusion is located; and / or the width of the adjacent second side projection in a direction parallel to the side on which the fourth side sub-projection is located is smaller than the width of the other fourth side sub-projection in a direction parallel to the side on which the fourth side sub-projection is located; The touch panel according to claim 1 .

6. 5. The touch panel of claim 4, wherein the first cutout portion has a triangular or rectangular shape, the second cutout portion has a triangular or rectangular shape, the third cutout portion has a triangular or rectangular shape, and the fourth cutout portion has a triangular or rectangular shape.

7. The first side edge protrusion includes a separate first side edge protrusion disposed on the same side as the adjacent first side edge protrusion and disposed at a corner adjacent to the corner at which the first corner protrusion is located, and an area of ​​the second side edge sub-protrusion of the separate first side edge protrusion is smaller than an area of ​​the second side edge sub-protrusion of another of the first side edge protrusions; and / or the second side edge protrusion includes a separate second side edge protrusion disposed on the same side as the adjacent second side edge protrusion and disposed at a corner adjacent to the corner at which the second corner protrusion is located, and the area of ​​the fourth side edge sub-protrusion of the separate second side edge protrusion is smaller than the area of ​​the fourth side edge sub-protrusion of the other second side edge protrusion; The touch panel according to claim 4 .

8. a height of the separated first side edge protrusion in a direction perpendicular to the side edge on which the second side edge sub-protrusion is located is smaller than a height of the other first side edge protrusion in a direction perpendicular to the side edge on which the second side edge sub-protrusion is located; a height of the separated second side edge protrusion in a direction perpendicular to the side edge on which the fourth side edge sub-protrusion is located is smaller than a height of the other second side edge protrusion in a direction perpendicular to the side edge on which the fourth side edge sub-protrusion is located; The touch panel according to claim 7.

9. The height of the separated first side edge protrusion in a direction perpendicular to the side edge on which the second side edge sub-protrusion is located is between one-sixth and one-half of the height of the other first side edge protrusion in a direction perpendicular to the side edge on which the second side edge sub-protrusion is located; The height of the separated second side edge protrusion in a direction perpendicular to the side edge on which the fourth side edge sub-protrusion is located is one-sixth to one-half of the height of the other second side edge protrusion in a direction perpendicular to the side edge on which the fourth side edge sub-protrusion is located. The touch panel according to claim 8 .

10. a fifth cutout portion on a side of the separated first side edge protrusion facing the adjacent first touch electrode; and / or a sixth cutout portion is provided on a side of the separated second side edge protrusion facing the adjacent second touch electrode. The touch panel according to claim 7.

11. The touch panel according to claim 10 , wherein the fifth cutout portion has a triangular or rectangular shape, and the sixth cutout portion has a triangular or rectangular shape.

12. a width in a direction parallel to the side edge on which the second side edge sub-projection is located is smaller than a width in a direction parallel to the side edge on which the first side edge sub-projection is located; a width in a direction parallel to the side edge on which the second corner sub-projection is located is smaller than a width in a direction parallel to the side edge on which the first corner sub-projection is located; The touch panel according to claim 1 .

13. the first corner protrusion includes a first corner extension portion extending from the first corner sub-protrusion toward the adjacent first touch electrode block along a direction parallel to a side edge located therebetween, and the two adjacent first touch electrode blocks are electrically connected by the first corner extension portion; the second corner protrusion includes a second corner extension portion extending from the first corner sub-protrusion toward the adjacent second touch electrode block along a direction parallel to a side edge located therebetween, and the two adjacent second touch electrode blocks are electrically connected by the second corner extension portion; The touch panel according to claim 12.

14. 2. The touch panel of claim 1, wherein the first touch electrode block and the second touch electrode block include a plurality of metal wires, the plurality of metal wires forming a metal mesh, and the boundary of the first touch electrode block and the boundary of the second touch electrode block are divided by a break in the metal mesh.

15. The touch panel according to claim 1 , wherein each of the first touch electrode blocks of the same first touch electrode is integrally connected and bridge-connected to each of the second touch electrode blocks of the same second touch electrode by a bridge portion.

16. 16. The touch panel of claim 15, wherein the first touch electrode and the second touch electrode are arranged on the same layer and made of the same material, an insulating layer is provided between the bridge portion and the layer on which the second touch electrode block is located, and two adjacent second touch electrode blocks are connected by the bridge portion through a via that penetrates the insulating layer.

17. A display device comprising: a display panel; and the touch panel according to claim 1 , disposed on a light-emitting side of the display panel.

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