Touch panel and display device

Abstract

The embodiments of the present disclosure provide a touch panel and a display device. The touch panel comprises: a first touch electrode comprising a first side edge protrusion, a first corner protrusion, and a neighboring first side edge protrusion; the first side edge protrusion comprises a second side edge sub-protrusion; the first corner protrusion comprises a second corner sub-protrusion; a second touch electrode comprising a second side edge protrusion, a second corner protrusion; the second side edge protrusion comprises a neighboring second side edge protrusion; the second side edge protrusion comprises a fourth side edge sub-protrusion; the second corner protrusion comprises a fourth corner sub-protrusion; an area of at least one of the second corner sub-protrusion, the second side edge sub-protrusion of the neighboring first side edge protrusion, and the fourth side edge sub-protrusion of the neighboring second side edge protrusion is smaller than that of the other second side edge sub-protrusions; and / or an area of at least one of the fourth corner sub-protrusion and the fourth side edge sub-protrusion of the neighboring second side edge protrusion is smaller than that of the other fourth side edge sub-protrusions.

Description

Technical Field

[0001] This invention relates to the field of semiconductor technology, and more particularly to a touch panel and display device. Background Technology

[0002] In a touch panel, the touch position is detected by arranging transmitting (Tx) electrodes and receiving (Rx) electrodes in mutually orthogonal directions on the panel. Summary of the Invention

[0003] This disclosure provides a touch panel and a display device. The touch panel includes:

[0004] The first touch electrode includes a plurality of first touch electrode blocks arranged sequentially and electrically connected along a first direction. Each first touch electrode block includes a first body, a first side protrusion located on the side of the first body and extending in a direction perpendicular to the side, and a first corner protrusion located in the corner region of the first body and extending in a direction perpendicular to the side. Two adjacent first touch electrode blocks arranged along the first direction are electrically connected through the first corner protrusion. The first side protrusion includes: adjacent first side protrusions adjacent to the first corner protrusion and located on different sides. The first side protrusion includes: first side sub-protrusions and second side sub-protrusions stacked sequentially along a direction perpendicular to the side and moving away from the side. The first corner protrusion includes: first corner sub-protrusions and second corner protrusions stacked sequentially along a direction perpendicular to the side and moving away from the side.

[0005] The second touch electrode includes a plurality of second touch electrode blocks arranged sequentially and electrically connected along a second direction. The second touch electrode is cross-insulated from the first touch electrode. Each second touch electrode block includes a second body, a second side protrusion located on the side of the second body and extending perpendicular to that side, and a second corner protrusion located at a corner of the second body and extending perpendicular to that side. Adjacent second touch electrode blocks arranged along the second direction are electrically connected through the second corner protrusion. The second side protrusion includes adjacent second side protrusions adjacent to the second corner protrusion but located on different sides. The second corner protrusion includes: a third side sub-protrusion and a fourth side sub-protrusion stacked sequentially along a direction perpendicular to the side and moving away from the side; the second corner protrusion includes: a third corner sub-protrusion and a fourth corner protrusion stacked sequentially along a direction perpendicular to the side and moving away from the side; wherein, at least one of the second corner protrusions and the second side sub-protrusions of the adjacent first side protrusions has an area smaller than the area of ​​the second side sub-protrusions of the other first side protrusions; and / or, at least one of the fourth corner protrusions and the fourth side sub-protrusions of the adjacent second side protrusions has an area smaller than the area of ​​the fourth side sub-protrusions of the other second side protrusions.

[0006] In one possible implementation, the height of the second corner protrusion along the direction perpendicular to its side is less than the height of the second side protrusion along the direction perpendicular to its side, so that the area of ​​the second corner protrusion is less than the area of ​​the second side protrusion of the other first side protrusions; and / or, the height of the fourth corner protrusion along the direction perpendicular to its side is less than the height of the fourth side protrusion along the direction perpendicular to its side, so that the area of ​​the fourth corner protrusion is less than the area of ​​the fourth side protrusion of the other second side protrusions.

[0007] In one possible implementation, the height of the second corner protrusion along the direction perpendicular to the side is one-sixth to one-half of the height of the second side protrusion along the direction perpendicular to the side.

[0008] The height of the fourth corner sub-protrusion along the direction perpendicular to its side is one-sixth to one-half of the height of the fourth side sub-protrusion along the direction perpendicular to its side.

[0009] In one possible implementation, the second corner protrusion has a first cut-off portion on the side facing the adjacent first touch electrode block; and / or, the fourth corner protrusion has a second cut-off portion on the side facing the adjacent second touch electrode block.

[0010] In one possible implementation, the second side sub-protrusion of the adjacent first side protrusion has a third cut-off portion on the side facing the adjacent first touch electrode block;

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

[0012] In one possible implementation, the width of the second side sub-protrusion of the adjacent first side protrusion in the direction parallel to its side is smaller than the width of the other second side sub-protrusions in the direction parallel to their side.

[0013] And / or, the width of the fourth side sub-protrusion of the adjacent second side protrusion in the direction parallel to its side is smaller than the width of the other fourth side sub-protrusions in the direction parallel to their side.

[0014] In one possible implementation, the first cut portion is triangular or rectangular in shape; the second cut portion is triangular or rectangular in shape; the third cut portion is triangular or rectangular in shape; and the fourth cut portion is triangular or rectangular in shape.

[0015] In one possible implementation, the first side protrusion includes: a first side protrusion of a separated class located on the same side as the adjacent first side protrusion and at a corner adjacent to the corner where the first corner protrusion is located; the area of ​​the second side sub-protrusion of the separated first side protrusion is smaller than the area of ​​the second side sub-protrusion of the other first side protrusions.

[0016] And / or, the second side protrusion includes: a second side protrusion of a separated type located on the same side as the adjacent second side protrusion and at a corner adjacent to the corner where the second corner protrusion is located; the area of ​​the fourth side sub-protrusion of the separated second side protrusion is smaller than the area of ​​the fourth side sub-protrusion of the other second side protrusions.

[0017] In one possible implementation, the height of the second side sub-protrusion of the first side protrusion of the spaced-apart type along the direction perpendicular to the side is less than the height of the second side sub-protrusion of the other first side protrusions along the direction perpendicular to the side.

[0018] The height of the fourth side sub-protrusion of the second side protrusion of the spaced-apart type along the direction perpendicular to its side is less than the height of the fourth side sub-protrusion of the other second side protrusions along the direction perpendicular to its side.

[0019] In one possible implementation, the height of the second side sub-protrusion of the first side protrusion of the spaced-apart type along the direction perpendicular to the side is one-sixth to one-half the height of the second side sub-protrusion of the other first side protrusions along the direction perpendicular to the side.

[0020] The height of the fourth side sub-protrusion of the second side protrusion of the spaced-apart type, perpendicular to the direction of its location, is one-sixth to one-half the height of the fourth side sub-protrusion of the other second side protrusions, perpendicular to the direction of its location.

[0021] In one possible implementation, the first side protrusion of the spacer type has a fifth cut-off portion on the side facing the adjacent first touch electrode;

[0022] And / or, the second side protrusion of the spaced-apart type has a sixth cut-off portion on the side facing the adjacent second touch electrode.

[0023] In one possible implementation, the fifth cut-off portion is triangular or rectangular in shape; the sixth cut-off portion is triangular or rectangular in shape.

[0024] In one possible implementation, the width of the second side sub-protrusion along the direction parallel to the side is smaller than the width of the first side sub-protrusion along the direction parallel to the side.

[0025] The width of the second corner protrusion along the direction parallel to its side is smaller than the width of the first corner protrusion along the direction parallel to its side.

[0026] In one possible implementation, the first corner protrusion includes: a first corner extension extending from the first corner sub-protrusion along a side parallel to the side of the protrusion toward the side of the adjacent first touch electrode block, and two adjacent first touch electrode blocks are electrically connected through the first corner extension.

[0027] The second corner protrusion includes a second corner extension extending from the first corner sub-protrusion along a parallel side to the adjacent second touch electrode block, and two adjacent second touch electrode blocks are electrically connected through the second corner extension.

[0028] In one possible implementation, the first touch electrode block and the second touch electrode block include multiple metal lines, which form a metal mesh. The boundaries of the first touch electrode block and the second touch electrode block are separated by broken lines in the metal mesh.

[0029] In one possible implementation, at least a portion of the metal mesh inside the first corner protrusion is broken; at least a portion of the metal mesh inside the second corner protrusion is broken.

[0030] In one possible implementation, each of the first touch electrode blocks of the same first touch electrode is integrally connected; each of the second touch electrode blocks of the same second touch electrode is connected by a bridging portion.

[0031] In one possible implementation, the first touch electrode and the second touch electrode are in the same layer and made of the same material, and there is an insulating layer between the bridging portion and the layer where the second touch electrode block is located. Two adjacent second touch electrode blocks are connected through the bridging portion via a through-hole penetrating the insulating layer.

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

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

[0034] This disclosure also provides a display device, which includes a display panel and a touch panel as described in this disclosure, located on the light-emitting side of the display panel. Attached Figure Description

[0035] Figure 1 One of the top views of a touch display panel provided in an embodiment of this disclosure;

[0036] Figure 2A for Figure 1 One of the enlarged schematic diagrams at point S within the dashed frame;

[0037] Figure 2B for Figure 1 One of the enlarged schematic diagrams at point S within the dashed frame;

[0038] Figure 3 for Figure 1 The third enlarged schematic diagram at point S within the dashed frame;

[0039] Figure 4A for Figure 1 Fourth enlarged schematic diagram at point S within the dashed frame;

[0040] Figure 4B for Figure 1 Fifth enlarged schematic diagram at point S within the dashed frame;

[0041] Figure 5A for Figure 1 Sixth enlarged schematic diagram at point S within the dashed frame;

[0042] Figure 5B for Figure 1 Seventh enlarged schematic diagram at point S within the dashed frame;

[0043] Figure 6A for Figure 1 The eighth enlarged schematic diagram at point S within the dashed frame;

[0044] Figure 6B for Figure 1 Enlarged schematic diagram at point S within the dashed frame (Part 9);

[0045] Figure 7 for Figure 4A A partially enlarged schematic diagram of the connection channel of the second touch electrode;

[0046] Figure 8 A cross-sectional schematic diagram of a touch panel provided in an embodiment of this disclosure;

[0047] Figure 9 This is a cross-sectional schematic diagram of a display device provided in an embodiment of the present disclosure;

[0048] Figure 10 This is a schematic diagram showing the relationship between the first touch electrode and the anode provided in an embodiment of this disclosure. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0050] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0051] To keep the following description of the embodiments of this disclosure clear and concise, detailed descriptions of known functions and known components are omitted.

[0052] The electrode pattern within the display area (AA) is composed of electrode pattern units. In the electrode layout scheme proposed by Flexible Multiple Layer on Cell (FMLOC) technology, Tx electrodes and Rx electrodes are placed on the same layer. Each electrode pattern unit comprises three parts: Tx (emitting electrode), Rx (receiving electrode), and Dummy (non-active area). To increase the mutual capacitance between Tx and Rx electrodes and enhance touch performance, the boundary between Tx and Rx is typically designed as a raised shape with consistent size. The raised shapes of Tx and Rx interlock, increasing the area at the Tx-Rx interface. However, due to pixel size, pattern unit size, and other factors, the electrode pattern connectivity is poor in some areas, increasing the risk of subsequent touch malfunctions.

[0053] In view of this, see Figure 1 , Figure 2A , Figure 2B , Figure 4A As shown, where, Figure 2A , Figure 2B , Figure 4A for Figure 1 An enlarged schematic diagram of the center frame S shows that this embodiment of the present disclosure provides a touch panel, including:

[0054] The first touch electrode 1 includes a plurality of first touch electrode blocks 10 arranged sequentially and electrically connected along the first direction A1, such as... Figure 2A As shown, the first touch electrode block 10 includes a first body 100, located on the side of the first body 100 and along a direction perpendicular to the side (e.g., Figure 2A The first side protrusion 11 extending from the middle arrow B1, and the one located in the corner area of ​​the first body 100 along the direction perpendicular to the side (as shown by the middle arrow B1). Figure 2A The first corner protrusion 12 (as shown by the middle arrow B1) extends outwards, and two adjacent first touch electrode blocks 10 arranged along the first direction A1 are electrically connected through the first corner protrusion 12; the first side protrusion 11 includes: adjacent first side protrusions 1101 that are adjacent to the first corner protrusion 12 and located on different sides; the first side protrusion 11 includes: along the direction perpendicular to the side and moving away from the side (e.g. Figure 2A The first side protrusion 111 and the second side protrusion 112 are stacked sequentially (as shown by the middle arrow B1); the first corner protrusion 12 includes: along the direction perpendicular to the side it is located and moving away from the side it is located (e.g., Figure 2A The first corner protrusion 121 and the second corner protrusion 122 are stacked sequentially (as shown by the middle arrow B1).

[0055] The second touch electrode 2 includes a plurality of second touch electrode blocks 20 arranged sequentially and electrically connected along the second direction A2. The second touch electrode 2 is cross-insulated from the first touch electrode 1. Figure 2B As shown, the second touch electrode block 20 includes a second body 200, located on the side of the second body 200 and along a direction perpendicular to the side (e.g., Figure 2B The second side protrusion 21 extending from the middle arrow B2, and the second main body corner area along the direction perpendicular to the side (as shown by the middle arrow B2) Figure 2B The second corner protrusion 22 (as shown by the middle arrow B2) extends outwards, and two adjacent second touch electrode blocks 20 arranged along the second direction A2 are electrically connected through the second corner protrusion 22; the second side protrusion 21 includes: adjacent second side protrusions 2101 that are adjacent to the second corner protrusion 22 and located on different sides; the second side protrusion 21 includes: along the direction perpendicular to the side and moving away from the side (e.g. Figure 2B (As shown by the middle arrow B2) The third side protrusion 211 and the fourth side protrusion 212 are stacked in a sub-overlapping manner; the second corner protrusion 22 includes: along the direction perpendicular to the side it is located and moving away from the side (e.g. Figure 2B (As shown by the middle arrow B2) The third corner sub-protrusion 221 and the fourth corner sub-protrusion 222 are stacked in sequence; wherein, among the second corner sub-protrusion 122 and the second side sub-protrusion 112 of the adjacent first side protrusion 1101, at least one of them has an area smaller than the area of ​​the second side sub-protrusion 112 of the other first side protrusion 11; and / or, among the fourth corner protrusion 222 and the fourth side sub-protrusion 212 of the adjacent second side protrusion 2101, at least one of them has an area smaller than the area of ​​the fourth side sub-protrusion 212 of the other second side protrusion 21.

[0056] In this embodiment, the first touch electrode block 10 includes a first side protrusion 11 and a first corner protrusion 12 connecting two adjacent first touch electrode blocks 10; the first side protrusion 11 includes a second side sub-protrusion 112; the first corner protrusion 12 includes a second corner sub-protrusion 122; the second touch electrode 20 includes a second side protrusion 21 and a second corner protrusion 22 connecting two adjacent second touch electrode blocks 20. At least one of the second corner sub-protrusion 122 and the second side sub-protrusion 112 of the adjacent first side protrusion 1101 has an area smaller than the area of ​​the second side sub-protrusion 112 of the other first side protrusions 11, thereby increasing the area between the second corner protrusion 122 and the first side protrusion 11 of the opposite first touch electrode block 10 (e.g., ...). Figure 2AThe width of the area shown by the dashed coil S3 increases the width of the connection channel between adjacent second touch electrode blocks 20, thus improving the poor connectivity and high resistance when the connection channel between adjacent second touch electrode blocks 20 is narrow; the second side protrusion 21 includes a fourth side sub-protrusion 212; the second corner protrusion 22 includes a fourth corner sub-protrusion 222; and / or, at least one of the fourth corner sub-protrusion 222 and the fourth side sub-protrusion 212 of the adjacent second side protrusion 2101 has a smaller area than the area of ​​the fourth side sub-protrusion 212 of the other second side protrusions 21, thereby increasing the area between the fourth corner protrusion 222 and the second side protrusion 21 of the opposite second touch electrode block 20 (e.g., Figure 2B The width of the area shown by the dashed coil S4 increases the width of the connection channel between adjacent first touch electrode blocks 10, thus improving the poor connectivity and high resistance when the connection channel between adjacent first touch electrode blocks 10 is narrow.

[0057] In one possible implementation, combining Figure 2A As shown, the height h1 of the second corner protrusion 122 along the direction perpendicular to its side is less than the height h2 of the second side protrusion 112 along the direction perpendicular to its side, so that the area of ​​the second corner protrusion 122 is smaller than the area of ​​the second side protrusion 122 of other first side protrusions 11 (excluding adjacent first side protrusions 1101). That is, compared to the distance from the end of the second side protrusion 112 to the dashed line S1, the distance from the end of the second corner protrusion 122 to the dashed line S1 is greater. In this way, the area of ​​the second corner protrusion 122 is smaller than the area of ​​the second side protrusion 112, and the pattern is easy to manufacture, simplifying the manufacturing process of the touch display panel; and / or, combined with Figure 2B As shown, the height h3 of the fourth corner protrusion 222 along the direction perpendicular to its side is less than the height h4 of the fourth side protrusion 212 along the direction perpendicular to its side. This makes the area of ​​the fourth corner protrusion 222 smaller than the area of ​​the fourth side protrusion 222 of the other second side protrusions 21 (excluding the adjacent second side protrusions 2101). That is, compared to the distance from the end of the fourth side protrusion 212 to the dashed line S2, the distance from the end of the fourth corner protrusion 222 to the dashed line S2 is greater. Thus, the area of ​​the fourth corner protrusion 222 is smaller than the area of ​​the fourth side protrusion 212, and the pattern is easier to make, simplifying the manufacturing process of the touch display panel.

[0058] Specifically, the height h1 of the second corner protrusion 122 along the direction perpendicular to its side is one-sixth to one-half of the height h2 of the second side protrusion 112 along the direction perpendicular to its side. This improves the poor connectivity and high resistance of adjacent second touch electrode blocks 20 while also ensuring a larger interface area between the first and second touch electrode blocks 10 and 20, resulting in a larger mutual capacitance between them and enhanced touch panel tactile properties. Yes; the height h3 of the fourth corner sub-protrusion 222 along the direction perpendicular to its side is one-sixth to one-half of the height h4 of the fourth side sub-protrusion 212 along the direction perpendicular to its side. In this way, while improving the problem of poor connectivity and high resistance of adjacent first touch electrode blocks 10, it can also satisfy the requirement of having a larger area at the junction of the first touch electrode block 10 and the second touch electrode block 20, so that there is a larger mutual capacitance value between the first touch electrode block 10 and the second touch electrode block 20, and the touch panel has enhanced touch performance.

[0059] In one possible implementation, see Figure 3 As shown, the second corner protrusion 122 has a first cut-off portion K1 on the side facing the adjacent first touch electrode block 10. The area where the first cut-off portion K1 is located is used to set the second touch electrode block 20. In this way, the area of ​​the second corner protrusion 122 is smaller than the area of ​​the second side protrusion 112, and the pattern is easy to make, simplifying the manufacturing process of the touch display panel; and / or, the fourth corner protrusion 222 has a second cut-off portion K2 on the side facing the adjacent second touch electrode block 20. The area where the second cut-off portion K2 is located is used to set the first touch electrode block 10. In this way, the area of ​​the fourth corner protrusion 222 is smaller than the area of ​​the fourth side protrusion 212, and the pattern is easy to make, simplifying the manufacturing process of the touch display panel.

[0060] In one possible implementation, see Figure 4A As shown, the second side sub-protrusion 112 of the adjacent first side protrusion 1101 has a third cut-off portion K3 on the side facing the adjacent first touch electrode block 10, thereby further increasing the width of the connection channel of the adjacent second touch electrode block 20; and / or, the fourth side sub-protrusion 212 of the adjacent second side protrusion 2101 has a fourth cut-off portion K4 on the side facing the adjacent second touch electrode block 20, thereby further increasing the width of the connection channel of the adjacent first touch electrode block 10.

[0061] It should be noted that, in this embodiment of the present disclosure, in order to clearly describe the pattern shape of the adjusted second corner protrusion 122 and fourth corner protrusion 222, the second corner protrusion 122 is described as having a first cut-out portion K1 and the fourth corner protrusion 222 has a second cut-out portion K2. In specific implementation, during the manufacturing process, the first cut-out portion K1 is the part of the second corner protrusion 122 that is removed and is not part of the structure of the second corner protrusion 122. The area where the first cut-out portion K1 is located is used to fabricate and set the second touch electrode block 20. Similarly, during the manufacturing process, the second cut-out portion K2 is the part of the fourth corner protrusion 222 that is removed and is not part of the structure of the fourth corner protrusion 222. The area where the second cut-out portion K2 is located is used to set the first touch electrode block 10. Similarly, during the manufacturing process, the third cut-out portion K3 is the part of the adjacent first side protrusion 1101 that is removed and is not part of the structure of the adjacent first side protrusion 1101. The area where the second cut-out portion K2 is located is used to set the second touch electrode block 20. Similarly, during the manufacturing process, the fourth cut-out portion K4 is the part of the adjacent second side protrusion 2101 that is removed, and it does not belong to the structure of the adjacent second side protrusion 2101. The area where the fourth cut-out portion K4 is located is used to set the first touch electrode block 10.

[0062] In one possible implementation, see Figure 4B As shown, the width a1 of the second side sub-protrusion 112 of the adjacent first side protrusion 1101 in the direction parallel to its side is smaller than the width a2 of the other second side sub-protrusions 112 in the direction parallel to its side. Thus, the width of the connection channel between adjacent second touch electrode blocks 20 can be further increased; and / or, the width a3 of the fourth side sub-protrusion 212 of the adjacent second side protrusion 2101 in the direction parallel to its side is smaller than the width a4 of the other fourth side sub-protrusions 212 in the direction parallel to its side. Thus, the width of the connection channel between adjacent first touch electrode blocks 10 can be further increased.

[0063] In one possible implementation, the first cut-off portion K1 is triangular in shape, such as... Figure 3 As shown; or, the shape of the first cut-off portion K1 can also be rectangular; the shape of the second cut-off portion K2 can be triangular, as shown. Figure 3 As shown; or, the shape of the second cut-off portion K2 can also be rectangular; the shape of the third cut-off portion K3 is triangular, as shown. Figure 4A As shown; or, the shape of the third cut-off portion K3 can also be rectangular; the shape of the fourth cut-off portion K4 is triangular, as shown. Figure 4A As shown; or, the shape of the fourth cut-off portion K4 can also be rectangular.

[0064] In one possible implementation, see Figure 5AAs shown, the first side protrusion 11 includes: a spaced-apart first side protrusion 1102 located on the same side as the adjacent first side protrusion 1101 and at a corner adjacent to the corner where the first corner protrusion 12 is located; the area of ​​the second side sub-protrusion 112 of the spaced-apart first side protrusion 1102 is smaller than the area of ​​the second side sub-protrusion 112 of the other first side protrusions 11; and / or, see Figure 5B As shown, the second side protrusion 21 includes: a second side protrusion 2102 that is located on the same side as the adjacent second side protrusion 2101 and at a corner adjacent to the corner where the second corner protrusion 22 is located; the area of ​​the fourth side sub-protrusion 212 of the second side protrusion 2102 is smaller than the area of ​​the fourth side sub-protrusion 212 of the other second side protrusions 21. In this embodiment, the first side protrusion 11 includes spaced-apart first side protrusions 1102; the area of ​​the second side sub-protrusions 112 of the spaced-apart first side protrusions 1102 is smaller than the area of ​​the second side sub-protrusions 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, and improve the situation where, if the spaced-apart first side protrusions 1102 have the same height as the other first side protrusions 11 due to the convex design, a portion of the electrodes at the corner of the second touch electrode block 20 cannot be connected to the second touch electrode 2, thus preventing touch. Invalid area; the second side protrusion 21 includes spaced second side protrusions 2102; the area of ​​the fourth side sub-protrusion 212 of the spaced 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-connection area, and improve the situation where if the spaced second side protrusion 2102 has the same height as the other second side protrusions 21 due to the convex design, a part of the electrode at the corner of the first touch electrode block 10 cannot be connected to the first touch electrode 1, forming an invalid touch area.

[0065] In one possible implementation, combining Figure 5A As shown, the height h5 of the second side sub-protrusion 112 of the spaced-apart first side protrusion 1102 along the direction perpendicular to its side is smaller than the height h6 of the second side sub-protrusion 112 of the other first side protrusions 11 along the direction perpendicular to its side. Thus, the area of ​​the second side sub-protrusion 112 of the spaced-apart first side protrusion 1102 is smaller than the area of ​​the second side sub-protrusion 112 of the other first side protrusions 11. Combined with... Figure 5BAs shown, the height h7 of the fourth side sub-protrusion 212 of the second side protrusion 2102 of the interlocking type along the direction perpendicular to its side is smaller than the height h8 of the fourth side sub-protrusion 212 of the other second side protrusion 21 along the direction perpendicular to its side. In this way, the area of ​​the fourth side sub-protrusion 212 of the second side protrusion 2102 of the interlocking type can be smaller than the area of ​​the fourth side sub-protrusion 212 of its second side protrusion 21.

[0066] In one possible implementation, combining Figure 5A As shown, the height h5 of the second side sub-protrusion 112 of the first side protrusion 1102 along the direction perpendicular to its side is one-sixth to one-half of the height h6 of the second side sub-protrusion 112 of the other first side protrusion 11 along the direction perpendicular to its side. Thus, while improving the poor connectivity of the second touch electrode block 20 in the non-connected corner area, it also allows for a larger interface area between the first touch electrode block 10 and the second touch electrode block 20, resulting in a larger mutual capacitance value between them and enhancing the touch panel's touch performance. Figure 5A As shown, the height h7 of the fourth side sub-protrusion 212 of the second side protrusion 2102 along the direction perpendicular to its side is one-sixth to one-half of the height h8 of the fourth side sub-protrusion 212 of the other second side protrusions 21 along the direction perpendicular to its side. In this way, while improving the poor connectivity of the first touch electrode block 10 in the corner non-connection area, it can also satisfy the requirement that the area at the junction of the first touch electrode block 10 and the second touch electrode block 20 is large, so that the first touch electrode block 10 and the second touch electrode block 20 have a large mutual capacitance value, and the touch panel has enhanced touch performance.

[0067] In one possible implementation, see Figure 6A As shown, the first side protrusion 1102 of the spacer type has a fifth cut-off portion K5 on the side facing the adjacent first touch electrode 1. This improves the poor connectivity of the second touch electrode block 20 in the corner non-connected area; and / or, see... Figure 6B As shown, the second side protrusion 2102 of the spacer type has a sixth cut-off portion K6 on the side facing the adjacent second touch electrode 2, which can improve the problem of poor connectivity of the first touch electrode block 10 in the corner non-connection area.

[0068] In one possible implementation, combining Figure 6A As shown, the fifth cut-off portion K5 is triangular or rectangular in shape; combined with Figure 6B As shown, the shape of the sixth cut-off part K6 is a triangle or a rectangle.

[0069] In one possible implementation, combining Figure 2A As shown, the width h9 of the second side sub-protrusion 112 along the direction parallel to its side is smaller than the width h10 of the first side sub-protrusion 111 along the direction parallel to its side; combined with Figure 2B As shown, the width h11 of the second corner protrusion 122 along the direction parallel to its side is smaller than the width h12 of the first corner protrusion 121 along the direction parallel to its side.

[0070] In one possible implementation, combining Figure 2A As shown, the first corner protrusion 12 includes: a first corner extension 123 extending from the first corner sub-protrusion 121 along a parallel side to the adjacent first touch electrode block 10, and two adjacent first touch electrode blocks 10 are electrically connected through the first corner extension 123; combined with Figure 2B As shown, the second corner protrusion 22 includes a second corner extension 223 extending from the first corner sub-protrusion 221 along a parallel side to the adjacent second touch electrode block 20, and the two adjacent second touch electrode blocks 20 are electrically connected through the second corner extension 223.

[0071] In one possible implementation, see Figure 7 As shown, the first touch electrode block 10 and the second touch electrode block 20 include multiple metal lines, which form a metal mesh. The boundaries of the first touch electrode block 10 and the second touch electrode block 20 are separated by broken lines in the metal mesh.

[0072] In one possible implementation, combining Figure 7 As shown, at least a portion of the metal mesh inside the first corner protrusion 12 is broken; at least a portion of the metal mesh inside the second corner protrusion 22 is broken.

[0073] In one possible implementation, combining Figure 1 As shown, each first touch electrode block 10 of the same first touch electrode 1 is integrally connected; each second touch electrode block 20 of the same second touch electrode 2 is connected by a bridging part 3.

[0074] In one possible implementation, see Figure 8 As shown, where Figure 8 for Figure 1 A cross-sectional view along the dashed line CC1 shows that the first touch electrode 1 and the second touch electrode 2 are on the same layer and made of the same material. There is an insulating layer between the bridging part 3 and the layer where the second touch electrode block 20 is located. Two adjacent second touch electrode blocks 20 are connected through the bridging part 3 via the through hole K that penetrates the insulating layer.

[0075] In one possible implementation, the material of the bridging portion 3 is the same as the material of the second touch electrode 2.

[0076] In one possible implementation, combining Figure 2A As shown, the first body 10 and the second body 20 have multiple floating electrodes 4 inside. Specifically, the floating electrodes 4 can be understood as structures that only have electrode patterns set, and no electrical signals are applied to the electrode patterns during use.

[0077] This disclosure also provides a display device, which includes a display panel and a touch panel as provided in this disclosure, located on the light-emitting side of the display panel.

[0078] For details, see Figure 9 As shown, the display device may include a substrate 100, a display layer 6 located between the substrate 100 and the bridging portion 3, and an encapsulation layer 7 located between the display layer 6 and the bridging portion 3.

[0079] For details, see Figure 10 As shown, the display layer 6 may specifically include a light-emitting device, which may specifically include an anode layer having multiple anodes 61 and a pixel definition layer having pixel openings 62. The metal mesh constituting the first touch electrode 1 and the second touch electrode 2 corresponds one-to-one with the pixel openings 62.

[0080] Specifically, display layer 6 may include a driving layer for driving light-emitting devices, and the driving layer may include pixel circuits for driving the light-emitting devices to emit light. The pixel circuits may specifically include thin-film transistors and capacitors. The specific pixel circuit structure and light-emitting device structure may be the same as those of existing organic light-emitting display panels and quantum dot light-emitting display panels, and will not be described in detail here.

[0081] In specific implementations, in the embodiments of this disclosure, the display device can be any product or component with a display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, navigator, watch, or bracelet. Other essential components of the display device are components that should be understood by those skilled in the art, and will not be described in detail here, nor should they be construed as limiting this disclosure.

[0082] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0083] Obviously, those skilled in the art can make various modifications and variations 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 to the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A touch panel, wherein, include: The first touch electrode includes a plurality of first touch electrode blocks arranged sequentially and electrically connected along a first direction. Each first touch electrode block includes a first body, the outline of which is approximately quadrilateral, the sides of which are the side edges of the first body, and the apex of which is the corner region of the first body; a first side protrusion located on the side edge of the first body and extending in a direction perpendicular to the side edge; and a first corner protrusion located in the corner region of the first body and extending in a direction perpendicular to the side edge. Two adjacent first touch electrode blocks arranged along the first direction are electrically connected through the first corner protrusion. The first side protrusion includes: an adjacent first side protrusion adjacent to the first corner protrusion but located on a different side; the first side protrusion includes: a first side sub-protrusion and a second side sub-protrusion stacked sequentially along a direction perpendicular to the side and moving away from the side; the first corner protrusion includes: a first corner sub-protrusion and a second corner protrusion stacked sequentially along a direction perpendicular to the side and moving away from the side. The second touch electrode comprises a plurality of second touch electrode blocks arranged sequentially and electrically connected along a second direction, wherein the second direction intersects the first direction; the second touch electrode is cross-insulated from the first touch electrode; the first touch electrode blocks and the second touch electrode blocks are alternately arranged in a third direction, which intersects both the first direction and the second direction; the second touch electrode block comprises a second body, the outline of the second body being approximately quadrilateral, the sides of the quadrilateral being the side edges of the second body, the apex of the quadrilateral being the corner region of the second body, a second side protrusion located on the side edge of the second body and extending in a direction perpendicular to the side edge, and a second corner protrusion located in the corner region of the second body and extending in a direction perpendicular to the side edge; two adjacent second touch electrodes arranged along the second direction... The electrode block is electrically connected via the second corner protrusion; the second side protrusion includes: adjacent second side protrusions located on different sides and adjacent to the second corner protrusion; the second side protrusion includes: a third side sub-protrusion and a fourth side sub-protrusion stacked sequentially along a direction perpendicular to the side and moving away from the side; the second corner protrusion includes: a third corner sub-protrusion and a fourth corner protrusion stacked sequentially along a direction perpendicular to the side and moving away from the side; wherein, at least one of the second corner sub-protrusions and the second side sub-protrusions of the adjacent first side protrusions has an area smaller than the area of ​​the second side sub-protrusions of other first side protrusions; and / or, at least one of the fourth corner sub-protrusions and the fourth side sub-protrusions of the adjacent second side protrusions has an area smaller than the area of ​​the fourth side sub-protrusions of other second side protrusions.

2. The touch panel as described in claim 1, wherein, The height of the second corner protrusion perpendicular to its side is less than the height of the second side protrusion perpendicular to its side, so that the area of ​​the second corner protrusion is less than the area of ​​the second side protrusion of the other first side protrusions; and / or, the height of the fourth corner protrusion perpendicular to its side is less than the height of the fourth side protrusion perpendicular to its side, so that the area of ​​the fourth corner protrusion is less than the area of ​​the fourth side protrusion of the other second side protrusions.

3. The touch panel as described in claim 2, wherein, The height of the second corner protrusion along the direction perpendicular to the side is one-sixth to one-half of the height of the second side protrusion along the direction perpendicular to the side. The height of the fourth corner sub-protrusion along the direction perpendicular to its side is one-sixth to one-half of the height of the fourth side sub-protrusion along the direction perpendicular to its side.

4. The touch panel as claimed in claim 1, wherein, The second corner protrusion has a first cut-off portion on the side facing the adjacent first touch electrode block; and / or, the fourth corner protrusion has a second cut-off portion on the side facing the adjacent second touch electrode block.

5. The touch panel as claimed in claim 4, wherein, The second side sub-protrusion of the adjacent first side protrusion has a third cut-off portion on the side facing the adjacent first touch electrode block; And / or, the fourth side sub-protrusion of the adjacent second side protrusion has a fourth cut-off portion on the side facing the adjacent second touch electrode block.

6. The touch panel as claimed in claim 4, wherein, The width of the second side sub-protrusion of the adjacent first side protrusion in the direction parallel to its side is smaller than the width of the other second side sub-protrusions in the direction parallel to their side. And / or, the width of the fourth side sub-protrusion of the adjacent second side protrusion in the direction parallel to its side is smaller than the width of the other fourth side sub-protrusions in the direction parallel to their side.

7. The touch panel as claimed in claim 5, wherein, The first excision portion is triangular or rectangular in shape; the second excision portion is triangular or rectangular in shape; the third excision portion is triangular or rectangular in shape; and the fourth excision portion is triangular or rectangular in shape.

8. The touch panel as claimed in claim 5, wherein, The first side protrusion includes: a first side protrusion of a separated class located on the same side as the adjacent first side protrusion and at a corner adjacent to the corner where the first corner protrusion is located; the area of ​​the second side sub-protrusion of the separated first side protrusion is smaller than the area of ​​the second side sub-protrusion of the other first side protrusions. And / or, the second side protrusion includes: a second side protrusion of a separated type located on the same side as the adjacent second side protrusion and at a corner adjacent to the corner where the second corner protrusion is located; the area of ​​the fourth side sub-protrusion of the separated second side protrusion is smaller than the area of ​​the fourth side sub-protrusion of the other second side protrusions.

9. The touch panel as claimed in claim 8, wherein, The height of the second side sub-protrusion of the first side protrusion of the spaced-out type along the direction perpendicular to the side is less than the height of the second side sub-protrusion of the other first side protrusions along the direction perpendicular to the side. The height of the fourth side sub-protrusion of the second side protrusion of the spaced-apart type along the direction perpendicular to its side is less than the height of the fourth side sub-protrusion of the other second side protrusions along the direction perpendicular to its side.

10. The touch panel as claimed in claim 9, wherein, The height of the second side sub-protrusion of the first side protrusion of the spaced-out type along the direction perpendicular to the side is one-sixth to one-half of the height of the second side sub-protrusion of the other first side protrusions along the direction perpendicular to the side. The height of the fourth side sub-protrusion of the second side protrusion of the spaced-apart type, perpendicular to the direction of its location, is one-sixth to one-half the height of the fourth side sub-protrusion of the other second side protrusions, perpendicular to the direction of its location.

11. The touch panel as claimed in claim 8, wherein, The first side protrusion of the spacer type has a fifth cut-off portion on the side adjacent to the first touch electrode; And / or, the second side protrusion of the spaced-apart type has a sixth cut-off portion on the side facing the adjacent second touch electrode.

12. The touch panel as claimed in claim 11, wherein, The fifth excision portion is triangular or rectangular in shape; the sixth excision portion is triangular or rectangular in shape.

13. The touch panel as claimed in claim 1, wherein, The width of the second side sub-protrusion along the direction parallel to the side is smaller than the width of the first side sub-protrusion along the direction parallel to the side. The width of the second corner protrusion along the direction parallel to its side is smaller than the width of the first corner protrusion along the direction parallel to its side.

14. The touch panel as claimed in claim 13, wherein, The first corner protrusion includes: a first corner extension extending from the first corner sub-protrusion along a parallel side to the adjacent first touch electrode block, and two adjacent first touch electrode blocks are electrically connected through the first corner extension; The second corner protrusion includes a second corner extension extending from the first corner sub-protrusion along a parallel side to the adjacent second touch electrode block, and two adjacent second touch electrode blocks are electrically connected through the second corner extension.

15. The touch panel as claimed in claim 1, wherein, The first touch electrode block and the second touch electrode block each include multiple metal lines, which form a metal mesh. The boundaries of the first touch electrode block and the second touch electrode block are separated by broken lines in the metal mesh.

16. The touch panel of claim 15, wherein, At least a portion of the metal mesh inside the first corner protrusion is broken; at least a portion of the metal mesh inside the second corner protrusion is broken.

17. The touch panel as claimed in claim 1, wherein, Each of the first touch electrode blocks of the same first touch electrode is integrally connected; each of the second touch electrode blocks of the same second touch electrode is connected by a bridging portion.

18. The touch panel of claim 17, wherein, The first touch electrode and the second touch electrode are in the same layer and made of the same material. There is an insulating layer between the bridging part and the layer where the second touch electrode block is located. Two adjacent second touch electrode blocks are connected through the bridging part via a through hole penetrating the insulating layer.

19. The touch panel as claimed in claim 1, wherein, The first body and the second body have multiple floating electrodes inside.

20. A display device, wherein, It includes a display panel and a touch panel as described in any one of claims 1-19, located on the light-emitting side of the display panel.

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