Touch panel, display panel and display device
By setting a bridging layer in the touch layer, the problem of high impedance of sensing electrodes and driving electrodes in large-size display panels is solved, which improves the sensitivity and response speed of touch operation, reduces production costs, and improves fault tolerance and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-04-03
AI Technical Summary
In large-size display panels, the impedance of the sensing electrodes and driving electrodes is relatively high, which affects the sensitivity of touch operation.
A bridging layer is provided on one side of the touch layer. The bridging layer includes a first connecting bridge and a second connecting bridge, which connect adjacent first sub-units and second sub-units, reduce the resistance of the second electrode, and reduce the resistance difference between the electrodes.
It improves the sensitivity and response speed of touch operation, reduces production costs, and enhances the fault tolerance and reliability of touch panels.
Smart Images
Figure CN121785490A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of display technology, and in particular to a touch panel, display panel and display device. Background Technology
[0002] With the continuous development of display technology, touch-enabled display panels have become extremely popular. Currently, display panels include a touch layer for implementing touch functionality, which typically comprises sensing electrodes and driving electrodes. To facilitate the placement of the sensing and driving electrodes, one of them is usually bridged. However, in larger products, the impedance on the sensing and driving electrodes is high, affecting the sensitivity of touch operations. Summary of the Invention
[0003] Based on this, embodiments of this application provide a touch panel, a display panel, and a display device that can improve the sensitivity of touch operation.
[0004] On one hand, embodiments of this application provide a touch panel, including:
[0005] The touch layer includes a first touch electrode and a second touch electrode. The first touch electrode includes a plurality of first electrodes arranged at intervals along a first direction. The first electrode includes a plurality of first electrode units arranged at intervals along a second direction. Each first electrode unit includes at least two first sub-units arranged along the first direction and adjacent first sub-units are connected. The second touch electrode includes a plurality of second electrodes arranged at intervals along a second direction. Each second electrode includes at least two second sub-units arranged at intervals along the second direction.
[0006] A bridging layer is disposed on one side of the touch layer. The bridging layer includes a first connecting bridge and a second connecting bridge. The first connecting bridge connects two adjacent first sub-units arranged along the second direction. The second connecting bridge connects adjacent second sub-units arranged along the second direction in the same second electrode.
[0007] On the other hand, embodiments of this application provide a display panel, including:
[0008] substrate;
[0009] The display function layer is disposed on one side of the substrate;
[0010] The touch panel provided in the foregoing embodiments of this application is disposed on the side of the display functional layer away from the substrate.
[0011] In another aspect, embodiments of this application provide a display device, including the display panel provided in the foregoing embodiments of this application.
[0012] The touch panel, display panel, and display device provided in this application embodiment include a first touch electrode of the touch layer comprising a plurality of first electrodes arranged at intervals along a first direction, each first electrode comprising a plurality of first electrode units arranged at intervals along a second direction, each first electrode unit comprising at least two first sub-units arranged along the first direction, and adjacent first sub-units being connected to each other; additionally, a second touch electrode comprises a plurality of second electrodes arranged at intervals along a second direction, each second electrode comprising at least two second sub-units arranged at intervals along the second direction; by providing a bridging layer on one side of the touch layer, the bridging layer comprising a first connecting bridge and a second connecting bridge, the first connecting bridge connecting two adjacent first sub-units arranged along the second direction; thus, a plurality of second sub-units arranged along the second direction can be connected, making the entire first touch electrode conductive; the second connecting bridge connecting adjacent second sub-units arranged along the second direction within the same second electrode. In this way, the sheet resistance of the second electrode can be reduced by the second connecting bridge. Compared with related technologies, the resistance of the first electrode can remain unchanged, while the resistance of the second electrode is reduced. This can reduce the resistance on the second electrode, thereby reducing the resistance difference between the first and second electrodes and improving the sensitivity of touch operation. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a touch panel provided in some embodiments of this application.
[0014] Figure 2 This is a schematic diagram of a structure in which a first electrode unit and a second electrode cooperate in a touch panel provided in some embodiments of this application.
[0015] Figure 3 This is a grid arrangement diagram of the first touch electrode and the second touch electrode in a touch panel provided in some embodiments of this application.
[0016] Figure 4 This is another structural schematic diagram of the cooperation between the first electrode unit and the second electrode in a display panel provided in some embodiments of this application.
[0017] Figure 5 This is another structural schematic diagram of the cooperation between the first electrode unit and the second electrode in a display panel provided in some embodiments of this application.
[0018] Figure 6 This is another structural schematic diagram of the cooperation between the first electrode unit and the second electrode in a display panel provided in some embodiments of this application.
[0019] Figure 7 This is another schematic diagram of the structure in which the first electrode power supply and the second electrode cooperate in a display panel provided in some embodiments of this application.
[0020] Figure 8 yes Figure 4 A magnified view of a portion of point A in the middle.
[0021] Explanation of reference numerals in the attached figures:
[0022] 10-Touch panel;
[0023] 11-Touch layer; 12-Bridging layer;
[0024] 111 - First electrode; 112 - Second electrode; 121 - First connecting bridge; 122 - Second connecting bridge;
[0025] 1111 - First electrode unit; 1121 - Second sub-unit; 1122 - Third sub-unit;
[0026] 1111a - First subunit; 1111b - First body; 1111c - First protrusion; 1111d - Arrangement space; 1111e - Second protrusion; 1111f - First side; 1111g - First segment; 1111h - Second segment; 1121a - Second side; 1121b - Third segment; 1121c - Fourth segment. Detailed Implementation
[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0033] Figure 1 This is a schematic diagram of the structure of a touch panel provided in some embodiments of this application.
[0034] In some examples, the touch panel 10 may include a touch layer 11. The touch layer 11 is typically made of indium tin oxide (ITO). For example, an indium tin oxide (ITO) layer can be deposited on a substrate and patterned to form the touch layer 11.
[0035] In some examples, refer to Figure 1 As shown, the touch layer 11 may include a first touch electrode. The first touch electrode may include a plurality of first electrodes 111. The plurality of first electrodes 111 may be arranged along a first direction (e.g., Figure 1 Arranged at intervals (in the direction shown by the x-axis).
[0036] In some examples, the first touch electrode may be the driving electrode of the touch panel 10.
[0037] In some examples, refer to Figure 1 As shown, the first electrode 111 can be along the second direction (e.g., Figure 1 Extending in the direction shown by the y-axis, that is, the length direction of the first electrode 111 can be the second direction y.
[0038] In some examples, refer to Figure 1 As shown, the touch layer 11 may include a second touch electrode. The second touch electrode may include a plurality of second electrodes 112. The plurality of second electrodes 112 may be arranged at intervals along a second direction y.
[0039] In some examples, the second touch electrode may be a sensing electrode of the touch panel 10.
[0040] In some examples, the second electrode 112 may extend along the first direction x. That is, the length direction of the second electrode 112 may be the first direction x.
[0041] In some examples, to avoid short circuits between the first electrode 111 and the second electrode 112, one of the first electrode 111 and the second electrode 112 can typically be selected as an electrode unit when patterning the touch layer 11.
[0042] Figure 2 This is a schematic diagram of a structure in which a first electrode unit and a second electrode cooperate in a touch panel provided in some embodiments of this application.
[0043] In some examples, refer to Figure 2 As shown, for ease of explanation, some examples of embodiments of this application are illustrated by the first electrode comprising a plurality of first electrode units 1111. The first electrode 111 may include a plurality of first electrode units 1111. The plurality of first electrode units 1111 may be arranged at intervals along the second direction y.
[0044] In some examples, refer to Figure 2 As shown, the gap between two adjacent first electrode units 1111 along the second direction y can allow the second electrode 112 to pass through. That is, in the touch layer 11, the second electrode 112 can be a continuous, thin trace along the first direction x, while the first electrode 111 can be a plurality of first electrode units 1111 arranged at intervals along the second direction y.
[0045] In some examples, refer to Figure 2 As shown, to facilitate the connection of adjacent first electrode units 1111 along the second direction y, the touch panel 10 may include a bridging layer 12. The bridging layer 12 may include a first connecting bridge 121. The first connecting bridge 121 can connect two adjacent first electrode units 1111 along the second direction y. In this way, a plurality of first electrode units 1111 along the second direction y are connected to form a first electrode 111.
[0046] In some examples, the resistance of the first connecting bridge 121 is different from the resistance of the ITO layer. For a larger touch panel 10, the sheet resistance of the ITO increases, which leads to an increase in the sheet resistance of the second electrode 112. This results in a difference in resistance between the second electrode 112 and the first electrode 111, which in turn leads to different signal transmission on the first electrode 111 and the second electrode 112, affecting the sensitivity of the touch operation.
[0047] Figure 3 This is a grid arrangement diagram of the first touch electrode and the second touch electrode in a touch panel provided in some embodiments of this application. Figure 4 This is another structural schematic diagram of the cooperation between the first electrode unit and the second electrode in a display panel provided in some embodiments of this application.
[0048] In some examples, refer to Figure 3 and Figure 4 As shown, the first electrode unit 1111 may include at least two first sub-units 1111a. In some examples of embodiments of this application, the first electrode unit 1111 includes two first sub-units 1111a as an example for illustration. Adjacent first sub-units 1111a are interconnected.
[0049] In some examples, refer to Figure 3 and Figure 4 As shown, the same second electrode 112 may include at least two second sub-units 1121, and the second sub-units 1121 may be arranged at intervals along the second direction y.
[0050] In some examples, the gap between two adjacent second subunits 1121 can allow the connection between two adjacent first subunits 1111a along the first direction x to pass through.
[0051] In some examples, the first connecting bridge 121 can connect two adjacent first sub-units 1111a arranged along the second direction. Taking a first electrode unit 1111 including two first sub-units 1111a as an example, a first electrode unit 1111 can have four first connecting bridges 121. Two of the four first connecting bridges 121 can be connected to one of the first electrode units 1111 along one side of the second direction y, and the other two first connecting bridges 121 can be connected to one of the first electrode units 1111 along the other side of the second direction y.
[0052] In some examples, the second connecting bridge 122 can connect two adjacent second sub-units 1121 arranged along the second direction y in the same second electrode 112. That is, the second connecting bridge 122 can cross the connection between two adjacent first sub-units 1111a arranged along the first direction x, and connect two adjacent second sub-units 1121 arranged along the second direction y.
[0053] In some examples, the first connecting bridge 121 and the second connecting bridge 122 can be made of materials with low resistance, such as gold, copper, or alloys. The first connecting bridge 121 and the second connecting bridge 122 can be made of the same, similar, or approximate materials as those in related technologies, which can be referred to in the detailed description of related technologies. This application will not repeat the details in the embodiments.
[0054] Some examples of embodiments of this application provide a touch panel 10, in which the first touch electrode of the touch layer 11 includes a plurality of first electrodes 111, which are spaced apart along a first direction. Each first electrode 111 includes a plurality of first electrode units 1111, which are spaced apart along a second direction. Each first electrode unit 1111 includes at least two first sub-units 1111a, which are arranged along the first direction and connected to adjacent first sub-units 1111a. The second touch electrode includes a plurality of second electrodes 112, which are spaced apart along the second direction. The first electrode unit 112 is connected to the first electrode unit 1111a. Electrode 112 includes at least two second sub-units 1121, which are spaced apart along a second direction. A bridging layer 12 is provided on one side of the touch layer 11. The bridging layer 12 includes a first connecting bridge 121 and a second connecting bridge 122. The first connecting bridge 121 connects two adjacent first sub-units 1111a arranged along the second direction. Thus, multiple second sub-units 1121 arranged along the second direction can be connected, making the entire first electrode 111 conductive. The second connecting bridge 122 connects adjacent second sub-units 1121 arranged along the second direction within the same second electrode 112. Therefore, the sheet resistance of the second electrode 112 can be reduced by the second connecting bridge 122. Compared to related technologies, the resistance of the first electrode 111 can remain unchanged, while the resistance of the second electrode 112 is reduced, thereby lowering the resistance on the second electrode 112 and reducing the resistance difference between the first electrode 111 and the second electrode 112, thus improving the sensitivity of touch operation.
[0055] Figure 5 This is another structural schematic diagram of the cooperation between the first electrode unit and the second electrode in a display panel provided in some embodiments of this application. Figure 6 This is another structural schematic diagram of the cooperation between the first electrode unit and the second electrode in a display panel provided in some embodiments of this application.
[0056] In some examples, refer to Figure 5 and Figure 6 As shown, along the second direction y, in the same second electrode 112, a second connecting bridge 122 can be provided between two adjacent second sub-units 1121.
[0057] In some examples, the second connecting bridge 122 can be positioned at a location where two adjacent second sub-units 1121 are close together. This reduces the length of the second connecting bridge 122, decreases the number of second connecting bridges 122 used, and lowers the manufacturing cost of the touch panel 10.
[0058] In some examples, along the second direction y, there can be multiple close positions and at least one far position between two adjacent second sub-units 1121. That is, along the second direction y, the opposite sides of two adjacent second sub-units 1121 can be broken line edges.
[0059] In some examples, the second connecting bridge 122 can be connected at either of the two adjacent second subunits 1121 at a relatively close location.
[0060] In some examples, refer to Figure 4 As shown, along the second direction y, in the same second electrode 112, multiple second connecting bridges 122 can be provided between two adjacent second subunits 1121.
[0061] In some examples, multiple second connecting bridges 122 can connect two adjacent second subunits 1121 in parallel.
[0062] In some examples, the second connecting bridge 122 may include two. The two second connecting bridges 122 may be connected in parallel to two adjacent second sub-units 1121 along the second direction y in the same second electrode 112.
[0063] In some examples of embodiments of this application, along the second direction, multiple second connecting bridges 122 are provided between two adjacent second sub-units 1121 in the same second electrode 112, and the multiple second connecting bridges 122 are connected in parallel between the two adjacent second sub-units 1121. In this way, the connection resistance between adjacent second sub-units 1121 can be reduced by multiple second connecting bridges 122, which is equivalent to connecting two second sub-units 1121 in parallel, thereby improving the transmission efficiency and stability of electrical signals on the second electrode 112, and improving the response speed and control accuracy of the touch panel 10.
[0064] In addition, by setting multiple second connecting bridges 122 to connect adjacent second sub-units 1121, if any one of the second connecting bridges 122 breaks, the remaining second connecting bridges 122 can still ensure effective connection between adjacent second sub-units 1121, thereby improving the fault tolerance of the touch panel 10.
[0065] In some examples, refer to Figures 4-6 As shown, along the second direction y, the number of first connecting bridges 121 set between two adjacent first subunits 1111a can be a first number.
[0066] In some examples, the number of second connecting bridges 122 set between two adjacent second subunits 1121 along the second direction y can be a second number.
[0067] In some examples, the first quantity may be less than or equal to the second quantity.
[0068] In some examples, the first quantity can be less than the second quantity. For example, the first quantity can be one, and the second quantity can be two.
[0069] In some examples, the first quantity can be equal to the second quantity. For example, the first quantity can be one item, and the second quantity can be one item.
[0070] In some examples of embodiments of this application, along the second direction, the number of first connecting bridges 121 between two adjacent first sub-units 1111a is set to a first number, and the number of second connecting bridges 122 between two adjacent second sub-units 1121 is set to a second number, with the first number being less than or equal to the second number. Thus, by setting the number of denser first connecting bridges 121 to be less than the number of second connecting bridges 122, the visibility risk of the first connecting bridges 121 can be reduced. Furthermore, a relatively larger number of second connecting bridges 122 can reduce the connection resistance between adjacent second sub-units 1121, enhancing the transmission efficiency and stability of electrical signals on the second electrode 112, and helping the touch panel 10 achieve a faster response speed. On the other hand, more second connecting bridges 122 can improve the fault tolerance of the touch panel 10; even if some second connecting bridges 122 break, the remaining second connecting bridges 122 can still ensure the effective connection of adjacent second sub-units 1121, enhancing the reliability and durability of the product.
[0071] Figure 7 This is another schematic diagram of the structure in which the first electrode power supply and the second electrode cooperate in a display panel provided in some embodiments of this application.
[0072] In some examples, refer to Figure 7 As shown, along the second direction y, there can be multiple first connecting bridges 121 between two adjacent first subunits 1111a. Multiple first connecting bridges 121 can be connected in parallel to two adjacent first subunits 1111a along the second direction y.
[0073] In some examples, along the second direction y, two first connecting bridges 121 may be provided between two adjacent first subunits 1111a. Along the second direction y, two first connecting bridges 121 may be provided between two adjacent second subunits 1121.
[0074] In some examples, refer to Figures 4-7 As shown, the second electrode 112 may include a third sub-unit 1122. Along the first direction x, the third sub-unit 1122 may be located on one side of the second sub-unit 1121. For example, referring to… Figures 4-7 As shown, the third subunit 1122 can be located to the left of the second subunit 1121, or the third subunit 1122 can be located to the right of the second subunit 1121.
[0075] It should be noted that in some examples of the embodiments of this application, the left or right side of the second subunit 1121 is only described by way of the orientation in the accompanying drawings of the embodiments of this application, and is not intended to limit the specific position of the third subunit 1122.
[0076] In some examples, the third subunit 1122 can be connected to the second subunits 1121 arranged at intervals along the second direction y in the same second electrode 112. For example, if there are two second subunits 1121 along the second direction y, the third subunit 1122 can be connected to the two second subunits 1121 respectively.
[0077] In some examples, along the second direction y, the size of the third subunit 1122 can be larger than the size of the second subunit 1121 so that the third subunit 1122 can be connected to both second subunits 1121 at the same time.
[0078] In some examples, refer to Figures 4-7 As shown, the connection point between the third subunit 1122 and the second subunit 1121 can be located in the gap between two adjacent first subunits 1111a along the second direction y. That is, the third subunit 1122 and the second subunit 1121 can be connected at the gap between two adjacent first subunits 1111a.
[0079] In some examples, refer to Figure 3 As shown, along the first direction x, the third subunit 1122 can be arranged alternately with the second subunit 1121. That is, a third subunit 1122 can be provided on each side of a group of second subunits 1121 along the first direction x; and a group of second subunits 1121 can be provided on each side of the third subunit 1122 along the first direction x.
[0080] In some examples of embodiments of this application, along the first direction x, a third subunit 1122 is provided on one side of the second subunit 1121. The third subunit 1122 is connected to the second subunits 1121 arranged at intervals along the second direction y in the same second electrode 112, and the third subunit 1122 and the second subunit 1121 can be arranged alternately along the first direction x. In this way, the third subunit 1122 can connect the second subunits 1121 arranged at intervals along the second direction in the same second electrode 112, so that the internal conductivity of the second electrode 112 is continuous, which can reduce the resistance loss in the signal transmission path and improve the response speed of the touch panel 10.
[0081] In some examples, refer to Figure 4 As shown, the first subunit 1111a may include the first body 1111b.
[0082] In some examples, refer to Figure 4 As shown, the first subunit 1111a may include a first protrusion 1111c. The first protrusion 1111c may protrude from the first body 1111b along the second direction y. The first protrusion 1111c and the first body 1111b may be an integral structure. That is, when the first subunit 1111a is patterned to form ITO, the first body 1111b and the first protrusion 1111c may be integrally formed.
[0083] In some examples, there may be two first protrusions 1111c along the second direction y, and the two first protrusions 1111c may be located on both sides of the first body 1111b.
[0084] In some examples, the first connecting bridge 121 may connect to two adjacent first protrusions 1111c.
[0085] In some examples of embodiments of this application, a protrusion of the first body 1111b is provided along the second direction y, and a first connecting bridge 121 connects two adjacent first protrusions 1111c. Thus, by connecting two adjacent first protrusions 1111c along the second direction y through the first connecting bridge 121, two adjacent first sub-units 1111a can be connected through the first connecting bridge 121, ensuring the continuity of the conductive path within the same first electrode 111 and reducing resistance loss during signal transmission. By providing a first protrusion 1111c on one side of the first body 1111b and connecting two adjacent first protrusions 1111c through the first connecting bridge 121, it is easier for the first connecting bridge 121 to connect two adjacent first sub-units 1111a, shortening the span required by the first connecting bridge 121, reducing the resistance of the first connecting bridge 121, and improving the response speed of the touch panel 10.
[0086] In some examples, refer to Figure 4 As shown, the first protrusions 1111c of two adjacent first motor units enclose and form an arrangement space 1111d.
[0087] In some examples, the second subunit 1121 may be located within the arrangement space 1111d.
[0088] In some examples, along the second direction, the second connecting bridge 122 may connect to the second sub-unit 1121 within two adjacent arrangement spaces 1111d.
[0089] In some examples, the shape of the second subunit 1121 can be adapted to the shape of the arrangement space 1111d. That is, the side of the second subunit 1121 can be parallel or approximately parallel to the side of the first protrusion 1111c.
[0090] In some examples of embodiments of this application, the second subunit 1121 is disposed within the arrangement space 1111d formed by the first protrusions 1111c of adjacent first electrode units 1111; along the second direction y, the second connecting bridge 122 connects the second subunits 1121 in two adjacent arrangement spaces 1111d. In this way, the second subunit 1121 can be arranged using the gap space between adjacent first electrode units 1111, improving the space utilization of the touch area, making the electrode layout more compact, increasing the number of touch sensors, and improving the accuracy and sensitivity of touch operations.
[0091] In some examples, refer to Figure 4 As shown, the first subunit 1111a may include a second protrusion 1111e, which may protrude from the first body 1111b along the first direction x.
[0092] In some examples, refer to Figure 4 As shown, along the first direction x, in the same first electrode 111, the second protrusions 1111e of two adjacent first subunits 1111a can be connected.
[0093] In other words, along the first direction x, in the same first electrode 111, the second protrusions 1111e of two adjacent first sub-units 1111a can extend toward each other in a direction that brings them closer together, and are connected to each other in the gap between two second sub-units 1121 spaced along the second direction y.
[0094] In some examples of embodiments of this application, a second protrusion 1111e is provided protruding from the first body 1111b along the first direction x. In the same first electrode 111, the second protrusions 1111e of two adjacent first sub-units 1111a are connected. In this way, the second protrusion 1111e connects the two first sub-units 1111a together, expanding the effective touch sensing area, making the signal acquisition during touch operation more accurate, thereby improving the user's touch experience.
[0095] Figure 8 yes Figure 4 A magnified view of a portion of point A in the middle.
[0096] In some examples, refer to Figure 8 As shown, the second protrusion 1111e may have a first side 1111f. The first side 1111f may face the arrangement space 1111d.
[0097] In some examples, the first side 1111f may include a first segment 1111g and a second segment 1111h. The first segment 1111g and the second segment 1111h may be connected to each other.
[0098] In some examples, the extension directions of the first segment 1111g and the second segment 1111h can be different. That is, the first side 1111f can be a wavy or polygonal side.
[0099] In some examples, refer to Figure 8 As shown, the second subunit 1121 may have a second side 1121a. The second side 1121a may be opposite to the first side 1111f. That is, the side of the second subunit 1121 opposite to the first side 1111f may be the second side 1121a.
[0100] In some examples, the second side 1121a may include a third segment 1121b and a fourth segment 1121c. The third segment 1121b may be connected to the fourth segment 1121c.
[0101] In some examples, the extension direction of the third segment 1121b may be different from that of the fourth segment 1121c. That is, the second side 1121a may be a wavy or zigzag side.
[0102] In some examples, the third segment 1121b can be parallel to the first segment 1111g. The fourth segment 1121c can be parallel to the second segment 1111h.
[0103] In some examples of embodiments of this application, the first side 1111f of the second protrusion 1111e is configured to include a first segment 1111g and a second segment 1111h with different extending directions, and the second side 1121a of the second subunit 1121 is configured to include a third segment 1121b and a fourth segment 1121c with different extending directions; the third segment 1121b is parallel to the first segment 1111g, and the fourth segment 1121c is parallel to the second segment; thus, the first side 1111f and the second side 1121a are both zigzag or wavy. The zigzag or wavy side structure can increase the facing area between the first electrode 111 and the second electrode 112, thereby improving the mutual capacitance value between the first electrode 111 and the second electrode 112, which is beneficial to enhance the sensitivity and stability of the touch signal and improve the response accuracy of the touch panel 10.
[0104] In some examples, the touch panel 10 may include an insulating layer (not shown). The insulating layer may be disposed between the touch layer 11 and the bridging layer 12.
[0105] In some examples, the insulating layer may have a first via, through which the first connecting bridge 121 can connect two adjacent first sub-units 1111a.
[0106] In some examples, the insulating layer may have a second via, through which the second connecting bridge 122 can connect two adjacent second sub-units 1121.
[0107] In some examples, during actual manufacturing, a bridging layer 12 can be deposited on a substrate (e.g., on the display functional layer of a display panel) and the bridging layer 12 can be patterned to form a first connecting bridge 121 and a second connecting bridge 122.
[0108] In some examples, after the first connecting bridge 121 and the second connecting bridge 122 are formed, an insulating layer can be deposited on the bridging layer 12 to insulate the first connecting bridge 121 and the second connecting bridge 122.
[0109] In some examples, the insulating layer may cover the first connecting bridge 121 and the second connecting bridge 122.
[0110] In some examples, after the insulating layer is deposited, a first via and a second via can be formed on the insulating layer. The first via is connected to a first connecting bridge 121. The second via is connected to a second connecting bridge 122. It is understood that conductive material can be disposed within the first and second vias.
[0111] In some examples, after the first and second vias are set, ITO can be deposited on the side of the insulating layer away from the bridging layer 12, and the ITO can be patterned to form the first and second touch electrodes described in detail in the foregoing embodiments of this application.
[0112] It is understood that in some examples of the embodiments of this application, the patterning process of ITO may be the same as, similar to or similar to that in related technologies. For details, please refer to the detailed description of the foregoing embodiments of this application.
[0113] In some examples, after the first and second touch electrodes are patterned, the first sub-unit 1111a is connected to the first connecting bridge 121. The second sub-unit 1121 is connected to the second connecting bridge 122.
[0114] In some examples of embodiments of this application, an insulating layer is provided between the touch layer 11 and the bridging layer 12, and a first via and a second via are provided on the insulating layer. The first connecting bridge 121 connects two adjacent first sub-units 1111a through the first via, and the second connecting bridge 122 connects two adjacent second sub-units 1121 through the second via. This facilitates insulation of the first and second touch electrodes through the insulating layer, avoiding the problem of touch signal failure due to short circuits between the first and second touch electrodes. Furthermore, it facilitates the bridging connection between the first sub-units 1111a and the second sub-units 1121, simplifying the wiring design of the touch panel 10 and reducing the manufacturing cost of the touch panel 10.
[0115] In some examples, the angles of the first connecting bridge 121 and the second connecting bridge 122 can be set according to the pixel aperture angle of the pixel definition layer of the display panel in order to reduce the visibility risk of the first connecting bridge 121 and the second connecting bridge 122.
[0116] On the other hand, embodiments of this application provide a display panel. The display panel may include a substrate. The substrate may be the same as, similar to or similar to substrates in related technologies, and specific details can be found in the detailed descriptions of related technologies, which will not be repeated in the embodiments of this application.
[0117] In some examples, the display panel may include a display functional layer. The display functional layer may be disposed on one side of the substrate. The display functional layer may include multiple light-emitting devices. These multiple light-emitting devices may be arranged in an array.
[0118] In some examples, the display panel may include the touch panel 10 described in detail in the foregoing embodiments of this application. The touch panel 10 may be disposed on the side of the display functional layer opposite to the substrate.
[0119] It is understood that the display panels provided in some examples of the embodiments of this application may have the same or corresponding technical features as the touch panel 10 provided in the foregoing embodiments of this application; therefore, the display panels provided in the embodiments of this application and the touch panel 10 provided in the foregoing embodiments of this application may have the same, similar or similar technical effects. For details, please refer to the detailed description of the foregoing embodiments of this application. The embodiments of this application will not repeat the details here.
[0120] In another aspect, embodiments of this application provide a display device. The display device may include the display panel provided in the foregoing embodiments of this application.
[0121] In some examples, the display device can be a laptop computer, mobile phone, wireless device, personal data assistant (PDA), handheld or portable computer, GPS receiver / navigator, camera, MP4 video player, camcorder, game console, watch, clock, calculator, TV monitor, flat panel display, computer monitor, automotive display (e.g., odometer display, etc.), navigator, cockpit controller and / or display, display of camera view (e.g., display of a rearview camera in a vehicle), electronic photograph, electronic billboard or sign, projector, packaging, etc.
[0122] It is understood that the display devices provided in some examples of the embodiments of this application may have the same or corresponding technical features as the display panels provided in the foregoing embodiments of this application; therefore, the display devices provided in the embodiments of this application and the display panels provided in the foregoing embodiments of this application may have the same or similar technical effects. For details, please refer to the detailed description of the foregoing embodiments of this application, which will not be repeated here.
[0123] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0124] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A touch panel, characterized in that, include: The touch layer includes a first touch electrode and a second touch electrode. The first touch electrode includes a plurality of first electrodes arranged at intervals along a first direction. Each first electrode includes a plurality of first electrode units arranged at intervals along a second direction. Each first electrode unit includes at least two first sub-units arranged along the first direction and adjacent first sub-units are connected to each other. The second touch electrode includes a plurality of second electrodes arranged at intervals along the second direction. Each second electrode includes at least two second sub-units arranged at intervals along the second direction. A bridging layer is disposed on one side of the touch layer. The bridging layer includes a first connecting bridge and a second connecting bridge. The first connecting bridge connects two adjacent first sub-units arranged along the second direction. The second connecting bridge connects adjacent second sub-units arranged along the second direction in the same second electrode.
2. The touch panel according to claim 1, characterized in that, Along the second direction, in the same second electrode, multiple second connecting bridges are provided between two adjacent second sub-units, and the multiple second connecting bridges are connected in parallel to the two adjacent second sub-units.
3. The touch panel according to claim 2, characterized in that, Along the second direction, the first connecting bridges arranged between two adjacent first sub-units have a first number, and the second connecting bridges arranged between two adjacent second sub-units have a second number; the first number is less than or equal to the second number.
4. The touch panel according to claim 2, characterized in that, Along the second direction, in the same second electrode, two second connecting bridges are provided between two adjacent second sub-units.
5. The touch panel according to any one of claims 1-4, characterized in that, The second electrode further includes a third sub-unit, which is located on one side of the second sub-unit along the first direction, and the third sub-unit is connected to the second sub-units arranged at intervals along the second direction in the same second electrode. Along the first direction, the third subunit and the second subunit are arranged alternately.
6. The touch panel according to any one of claims 1-4, characterized in that, The first subunit includes: first ontology; A first protrusion protrudes from the first body along the second direction; the first connecting bridge connects two adjacent first protrusions.
7. The touch panel according to claim 6, characterized in that, The first protrusions of two adjacent first electrode units enclose an arrangement space, and the second sub-unit is located in the arrangement space; along the second direction, the second connecting bridge connects the second sub-units in two adjacent arrangement spaces.
8. The touch panel according to claim 7, characterized in that, The first sub-unit further includes a second protrusion, which protrudes from the first body along the first direction. In the same first electrode, the second protrusions of two adjacent first sub-units are connected.
9. The touch panel according to claim 8, characterized in that, The second protrusion has a first side facing the arrangement space. The first side includes at least a first segment and a second segment, which are connected. The first segment and the second segment extend in different directions. The second subunit has a second side opposite to the first side. The second side includes a third segment and a fourth segment, the third segment being parallel to the first segment and the fourth segment being parallel to the second segment.
10. The touch panel according to any one of claims 1-4, characterized in that, The touch panel further includes an insulating layer disposed between the touch layer and the bridging layer. The insulating layer has a first via and a second via. The first connecting bridge connects two adjacent first sub-units through the first via, and the second connecting bridge connects two adjacent second sub-units through the second via.
11. A display panel, characterized in that, include: substrate; The display function layer is disposed on one side of the substrate; The touch panel according to any one of claims 1-10, wherein the touch panel is disposed on the side of the display functional layer opposite to the substrate.
12. A display device, characterized in that, Includes the display panel as described in claim 11.