Touch function component, display panel and display device

Abstract

The application discloses a touch function component, a display panel and a display device, and belongs to the technical field of display. The touch function component comprises: a first electrode, electrode main bodies in the same first electrode extend to form electrode protruding parts in a first direction, or the electrode main bodies in the same first electrode are in contact connection with the electrode protruding parts, and accommodation areas are formed between two adjacent electrode protruding parts; a second electrode comprises a first electrode structure located in the accommodation area and a second electrode structure located on both sides of the accommodation area, the second electrode structure extends to the accommodation area by bypassing the electrode protruding part to form the first electrode structure, or the second electrode structure extends to the first electrode structure by bypassing the electrode protruding part and is in contact connection with the first electrode structure; a first connecting bridge is used for electrically connecting the electrode protruding part of one first electrode and the electrode main body of another first electrode; and a second connecting bridge is used for electrically connecting the first electrode structure and the second electrode structure. According to the embodiment of the application, the reaction speed of the display panel with the touch function can be improved.

Description

Technical Field

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

[0002] With the continuous development of display technology, display devices are playing an increasingly important role in people's work, life, and study. Touch-enabled display panels have become extremely popular. These panels contain touch-enabled components to achieve touch functionality. These components include sensing electrodes and driving electrodes; however, the impedance of the sensing electrode differs significantly from that of the driving electrode. This results in a slower transmission speed of the electrical signal from the electrode with higher impedance, reducing the response speed of the touch-enabled display panel to operations. Summary of the Invention

[0003] This application provides a touch-enabled component, a display panel, and a display device, which can improve the response speed of a touch-enabled display panel to operations.

[0004] In a first aspect, embodiments of this application provide a touch-sensitive functional component, comprising: a first electrode, wherein a plurality of first electrodes are sequentially distributed along a first direction, and in two adjacent first electrodes, at least one first electrode includes an electrode body and an electrode protrusion, wherein the electrode body of the same first electrode extends in the first direction to form the electrode protrusion or the electrode body and the electrode protrusion of the same first electrode are in contact and connected, and two adjacent first electrodes include two or more electrode protrusions, and a receiving area is formed between the two adjacent electrode protrusions; a second electrode, extending along a second direction, including a first electrode structure located in the receiving area and second electrode structures located on both sides of the receiving area, wherein the second electrode structure extends around the electrode protrusion toward the receiving area to form the first electrode structure or the second electrode structure extends around the electrode protrusion toward the first electrode structure and is in contact and connected thereto; a first connecting bridge, electrically connecting the electrode protrusion of one of the two adjacent first electrodes to the electrode body of the other first electrode; and a second connecting bridge, electrically connecting the first electrode structure and the second electrode structure, wherein the orthographic projection of the second connecting bridge at least partially overlaps with the orthographic projection of the electrode protrusion.

[0005] According to an embodiment of the first aspect, each of the first electrodes has at least one electrode protrusion on the side close to an adjacent first electrode, and the electrode protrusions of two adjacent first electrodes are disposed opposite each other in the second direction.

[0006] According to any of the foregoing embodiments of the first aspect, a first connecting bridge and a second connecting bridge are alternately arranged around the first electrode structure.

[0007] According to any of the foregoing embodiments of the first aspect, in two adjacent first electrodes, one of the first electrodes has at least two electrode protrusions on the side closer to the other first electrode, and two or more electrode protrusions of the same first electrode are disposed opposite each other in a second direction and the receiving area is formed between the electrode protrusions.

[0008] According to any of the foregoing embodiments of the first aspect, a plurality of first connecting bridges are sequentially arranged around the first electrode structure, and a plurality of second connecting bridges are sequentially arranged.

[0009] According to any of the foregoing embodiments of the first aspect, the touch function control further includes: a third connecting bridge electrically connecting two adjacent electrode protrusions.

[0010] According to any of the foregoing embodiments of the first aspect, the first electrode structure includes a first sub-electrode structure and a second sub-electrode structure, and a first blank area is formed between the first sub-electrode structure, the second sub-electrode structure and the electrode protrusion.

[0011] According to any of the foregoing embodiments of the first aspect, a second blank area is formed between the electrode body and the second electrode structure.

[0012] According to any of the foregoing embodiments of the first aspect, the cross-sectional width of the electrode protrusion in the first direction first increases and then decreases.

[0013] According to any of the foregoing embodiments of the first aspect, in the same first electrode, the cross-sectional width of the end of the electrode protrusion extending toward the electrode body is smaller than the cross-sectional width of the end of the electrode protrusion away from the electrode body.

[0014] According to any of the foregoing embodiments of the first aspect, at least a portion of the orthographic projection of the first connecting bridge falls into the first gap, the first gap being the gap between the electrode protrusion of one of the two adjacent first electrodes and the electrode body of the other first electrode.

[0015] According to any of the foregoing embodiments of the first aspect, the orthographic projection of the second connecting bridge at least partially coincides with the orthographic projection of the end with the smallest cross-sectional width in the electrode protrusion.

[0016] According to any of the foregoing embodiments of the first aspect, the first electrode is one of a sensing electrode and a driving electrode, and the second electrode is the other of a sensing electrode and a driving electrode.

[0017] Secondly, embodiments of this application provide a display panel including the touch function component of the first aspect.

[0018] According to the second aspect of the implementation, the aspect ratio of the display panel is 1:M, the first direction is the length direction of the display panel, the second direction is the width direction of the display panel, and M>1.

[0019] According to any of the aforementioned embodiments of the second aspect, the aspect ratio of the display panel is M:1, the first direction is the width direction of the display panel, the second direction is the length direction of the display panel, and M > 1.

[0020] According to any of the foregoing embodiments of the second aspect, the aspect ratio of the display panel is 1:1, the first electrode structure includes a first sub-electrode structure and a second sub-electrode structure, and a first blank area is formed between the first sub-electrode structure, the second sub-electrode structure and the electrode protrusion.

[0021] According to any of the aforementioned embodiments of the second aspect, the aspect ratio of the display panel is 1:1, and a third connecting bridge is provided between two adjacent electrode protrusions.

[0022] Thirdly, embodiments of this application provide a display device, including the display panel of the second aspect.

[0023] This application provides a touch-sensitive functional component, a display panel, and a display device. The touch-sensitive functional component includes a first electrode, a second electrode, a first connecting bridge, and a second connecting bridge. In two adjacent first electrodes, at least one first electrode includes an electrode body and an electrode protrusion. In the same first electrode, the electrode body extends in a first direction to form the electrode protrusion, or the electrode body and the electrode protrusion are in contact with each other in the same first electrode. Two adjacent first electrodes include two or more electrode protrusions. The second electrode includes a first electrode structure located between two adjacent electrode protrusions and second electrode structures located on both sides of the first electrode structure. The second electrode structure extends around the electrode protrusion into a receiving area to form the first electrode structure, or the second electrode structure extends around the electrode protrusion into the first electrode structure and contacts it. The first connecting bridge electrically connects the electrode protrusion of one first electrode to the electrode body of another adjacent first electrode. The second connecting bridge electrically connects the first electrode structure and the second electrode structure. In two adjacent first electrodes, the electrode body, the electrode protrusion, and the first connecting bridge can form two or more parallel branches. In the second electrode, the first electrode structure and the second electrode structure can form two or more parallel branches. The structure of the electrical signal transmission channel of the first electrode is basically the same as that of the electrical signal transmission channel of the second electrode. The parallel connection of the branches in the electrical signal transmission channel reduces the impedance of the first electrode and the impedance of the second electrode, which can ensure that the transmission speed of the electrical signal transmission channel of the first electrode is faster than that of the electrical signal transmission speed of the second electrode, thereby improving the response speed of the display panel including the touch function component to operation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a repeating unit of a touch function component in one embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the structure of a repeating unit of the touch function component in another embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the structure of a repeating unit of the touch function component in another embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the structure of a repeating unit of a touch function component in another embodiment of this application;

[0029] Figure 5 for Figure 2 A cross-sectional view of an example along the AA direction;

[0030] Figure 6 for Figure 1 A schematic diagram of an example of the electrical signal transmission channel of the first electrode in the middle;

[0031] Figure 7 for Figure 1 A schematic diagram of an example of the electrical signal transmission channel of the second electrode;

[0032] Figure 8 This is a schematic diagram of the structure of a repeating unit of the touch function component in yet another embodiment of this application;

[0033] Figure 9 This is a schematic diagram of the structure of a repeating unit of the touch function component in another embodiment of this application;

[0034] Figure 10 for Figure 9 A schematic diagram of an example of the electrical signal transmission channel of the first electrode in the middle;

[0035] Figure 11 for Figure 9 A schematic diagram of an example of the electrical signal transmission channel of the second electrode;

[0036] Figure 12 This is a schematic diagram of the structure of a repeating unit of the touch function component in another embodiment of this application;

[0037] Figure 13 for Figure 12A schematic diagram of an example of the electrical signal transmission channel of the first electrode in the middle;

[0038] Figure 14 for Figure 12 A schematic diagram of an example of the electrical signal transmission channel of the second electrode;

[0039] Figure 15 This is a schematic diagram illustrating an example of the extension direction of the first connecting bridge and the second connecting bridge provided in an embodiment of this application. Detailed Implementation

[0040] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0041] With the continuous development of display technology, display devices are playing an increasingly important role in people's work, life, and study. Among them, touch-enabled display panels have become extremely popular due to their excellent interactivity. Display panels contain touch functional components to achieve touch functionality. These components include sensing electrodes and driving electrodes. However, the impedance of the sensing electrode differs significantly from that of the driving electrode. This results in a slower transmission speed of the electrical signal from the electrode with higher impedance, reducing the response speed of the touch-enabled display panel to operations.

[0042] This application provides a touch function component, a display panel, and a display device, which can reduce the impedance difference between the two electrodes in the touch function component, making the impedance of the electrodes in the touch function component consistent or nearly consistent, so that the transmission speed of the electrical signal transmission channels of the two electrodes is faster, thereby improving the response speed of the touch-enabled display panel to operation.

[0043] This application provides a touch function component, which may include a first electrode, a second electrode, a first connecting bridge, and a second connecting bridge. For ease of understanding, the touch function component will be described below with reference to local repeating units, which may include repeating units arranged in an array. Figure 1 This is a schematic diagram of the structure of a repeating unit of a touch function component in one embodiment of this application. Figure 2 This is a schematic diagram of the structure of a repeating unit of a touch function component in another embodiment of this application. Figure 3This is a schematic diagram of the structure of a repeating unit of a touch function component in another embodiment of this application. Figure 4 This is a schematic diagram of the structure of a repeating unit of the touch function component in another embodiment of this application. For example... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the touch function component may include a first electrode 11, a second electrode 12, a first connecting bridge 13, and a second connecting bridge 14.

[0044] Multiple first electrodes 11 are sequentially distributed along a first direction. In two adjacent first electrodes 11, at least one first electrode 11 includes an electrode body 111 and an electrode protrusion 112. In some examples, in two adjacent first electrodes 11, each first electrode 11 includes an electrode body 111 and an electrode protrusion 112. Figure 1 , Figure 2 and Figure 3 As shown, in Figure 1 , Figure 2 and Figure 3 In the illustrated repeating units, each first electrode 11 may include an electrode body 111 and an electrode protrusion 112. In other examples, of two adjacent first electrodes 11, one first electrode 11 includes an electrode body 111 and an electrode protrusion 112, while the other first electrode 11 includes an electrode body 111 but does not include an electrode protrusion 112. Figure 4 As shown, in Figure 4 In the illustrated repeating unit, a first electrode 11 includes an electrode body 111 and two electrode protrusions 112, while the other electrode 11 includes an electrode body 111 but does not include the electrode protrusions 112.

[0045] In some examples, the electrode body 111 and the electrode protrusion 112 in the first electrode 11 can be an integral structure, i.e., integrally formed, with the electrode body 111 extending in a first direction to form the electrode protrusion 112 in the same first electrode 11. For example... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when the first electrode 11 includes an electrode body 111 and an electrode protrusion 112, the electrode body 111 and the electrode protrusion 112 in the first electrode 11 are an integral structure. In some examples, the electrode body 111 and the electrode protrusion 112 in the first electrode 11 may be a separate structure, in which the electrode body 111 extends toward the electrode protrusion 112 and the electrode body 111 and the electrode protrusion 112 are in contact and connected.

[0046] Two adjacent first electrodes 11 include two or more electrode protrusions 112, and a receiving area can be formed between two adjacent electrode protrusions 112. In some examples, the first electrode 11 may be an indium tin oxide electrode, i.e., an ITO electrode.

[0047] The second electrode 12 extends along a second direction. The second electrode 12 includes a first electrode structure 121 located in the receiving area and second electrode structures 122 located on both sides of the receiving area. In some examples, the first electrode structure 121 and the second electrode structure 122 may be an integral structure, i.e., integrally formed, with the second electrode structure 122 extending around the electrode protrusion 112 into the receiving area to form the first electrode structure 121. For example... Figure 1 , Figure 2 and Figure 4 As shown, the second electrode structure 122 can extend into the receiving area through the gap between the electrode protrusion 112 of one first electrode 11 and the electrode body 111 of the other first electrode 11 to form the first electrode structure 121. In some examples, the first electrode structure 121 and the second electrode structure 122 can be separate structures, and the second electrode structure 122 can extend around the electrode protrusion 112 into the first electrode structure 121 and contact and connect with the first electrode structure 121.

[0048] In some examples, the second electrode may be an ITO electrode.

[0049] The first direction and the second direction form an angle. In some examples, the first direction and the second direction are perpendicular. For example, the first direction can be the row arrangement direction of the repeating units, that is, the first direction can be the length direction of the display panel including the touch function components, and the second direction can be the column arrangement direction of the repeating units, that is, the first direction can be the width direction of the display panel including the touch function components. As another example, the first direction can be the column arrangement direction of the repeating units, that is, the first direction can be the width direction of the display panel including the touch function components, and the second direction can be the row arrangement direction of the repeating units, that is, the first direction can be the length direction of the display panel including the touch function components.

[0050] The first connecting bridge 13 electrically connects the electrode protrusion 112 of one of two adjacent first electrodes 11 to the electrode body 111 of the other first electrode 11. The first connecting bridge is made of a conductive material; for example, it can be a metal bridge structure or other conductive material structure, which is not limited here. The first connecting bridge has an electrical conduction function, enabling electrical connection between the electrode protrusion 112 of one first electrode 11 and the electrode body 111 of the other first electrode 11. In some examples, at least a portion of the orthographic projection of the first connecting bridge 13 can fall into a first gap. The first gap is the gap between the electrode protrusion 112 of one of two adjacent first electrodes 11 and the electrode body 111 of the other first electrode 11. It should be noted that in this application, the first electrode 11 and the second electrode 12 are insulated from each other, meaning that the first electrode 11 and the second electrode 12 do not actually contact each other to avoid contact and conduction between the first electrode 11 and the second electrode 12, thus preventing the touch function from being realized. For example, an insulating gap may be provided between the first electrode 11 and the second electrode 12. An insulating structure may be provided in the insulating gap, and this is not limited. Furthermore, in this embodiment, the electrode protrusion 112 of one of the two adjacent first electrodes 11 is not in contact with the electrode body 111 of the other first electrode 11; there is a certain distance between them, forming the first gap in this application. The first gap may include the insulating gap between the first electrode 11 and the second electrode 12. This first gap may coincide with the second electrode 12, and at least a portion of the orthographic projection of the first connecting bridge 13 falls within this first gap, that is, at least a portion of the orthographic projection of the first connecting bridge 13 falls within the second electrode 12.

[0051] The second connecting bridge 14 electrically connects the first electrode structure 121 and the second electrode structure 122. The orthographic projection of the second connecting bridge 14 at least partially overlaps with the orthographic projection of the electrode protrusion 112. Here, orthographic projection refers to the projection in the thickness direction. The second connecting bridge 14 is made of a conductive material; for example, the second connecting bridge 14 can be a metal bridge structure or other conductive material structure, which is not limited here. The second connecting bridge 14 has an electrical conduction function, enabling the electrical connection between the first electrode structure 121 and the second electrode structure 122. In some examples, the orthographic projection of the second connecting bridge 14 at least partially overlaps with the orthographic projection of the end of the electrode protrusion 112 of one of the first electrodes 11 extending into the electrode body 111 of the other first electrode 11.

[0052] The cross-sectional width of the electrode protrusion 112 is smaller than the cross-sectional width of the electrode body 111. In some examples, the cross-sectional width of the electrode protrusion 112 first increases and then decreases in the first direction. For example... Figure 1As shown, in the first direction, the cross-sectional width d3 of the electrode protrusion 112 is less than the cross-sectional width d2, and the cross-sectional width d2 is greater than the cross-sectional width d1. That is, the cross-sectional width of the electrode protrusion 112 increases from the position corresponding to the cross-sectional width d3 to the position corresponding to the cross-sectional width d2, and decreases from the position corresponding to the cross-sectional width d2 to the position corresponding to the cross-sectional width d1.

[0053] In the same first electrode 11, the cross-sectional width of the end of the electrode protrusion 112 extending towards the electrode body 111 is smaller than the cross-sectional width of the end of the electrode protrusion 112 away from the electrode body 111. That is, the end of the electrode protrusion 112 extending towards the electrode body 111 is the part with the smallest cross-sectional width in the electrode protrusion 112. In other words, the cross-section of the end of the electrode protrusion 112 extending towards the electrode body 111 can be the smallest cross-section of the electrode protrusion 112, i.e., the smallest current-carrying cross-section. The smallest current-carrying cross-section is the smallest cross-section through which current flows. The orthographic projection of the second connecting bridge 14 can at least partially coincide with the orthographic projection of the end with the smallest cross-section in the electrode protrusion 112, which can reduce the length of the second connecting bridge 14, thereby reducing the impact of the second connecting bridge 14 on the visibility of the display panel including the touch function components and improving the visibility of the display panel including the touch function components.

[0054] In some examples, the number of first connecting bridges 13 may be the same as the number of electrode protrusions 112, and the number of second connecting bridges may be the same as the number of electrode protrusions 112, but is not limited thereto.

[0055] It should be noted that the first electrode 11 and the second electrode 12 are insulated from each other, and the specific insulation method is not limited here. Figure 5 for Figure 2 A cross-sectional view of an example along axis AA. (See example...) Figure 5 As shown, the first connecting bridge 13 may be located between the base layer 21 and the first electrode 11. A portion of the first electrode 11 is electrically connected to the first connecting bridge 13. The base layer 21 may include a substrate, and may also include other layer structures, which are not limited herein. The second electrode 12 may be disposed in the same layer as the first electrode 11, and an insulating gap 22 is provided between the first electrode 11 and the second electrode 12. An insulating layer 23 is disposed between the second electrode 12 and the first connecting bridge 13. The insulating layer 23 may be a silicon oxide layer or other material layer, which are not limited herein.

[0056] In the above embodiment, two adjacent first electrodes 11 have two or more parallel branches, each branch including an electrode protrusion 112 and a first connecting bridge 13. The second electrode 12, with its successively distributed second electrode structure 122, first electrode structure 121, and second electrode structure 122, also has two or more parallel branches, each branch including a second connecting bridge 14 and a second electrode 12 located in the gap between the electrode protrusion 112 and the electrode body 111. For clarity, please refer to [link to previous description]. Figure 6 and Figure 7 , Figure 6 It shows Figure 1 The electrical signal transmission channel of the first electrode in the middle, Figure 7 It shows Figure 1 The electrical signal transmission channel of the second electrode. Figure 6 The electrical signal transmission channel of the first electrode 11 includes two parallel branches, namely L1 and L2. The current direction is set as the first direction. The current of the L1 branch flows through the electrode body 111a, the electrode protrusion 112a, the first connecting bridge 13a and the electrode body 111b, and the current of the L2 branch flows through the electrode body 111a, the first connecting bridge 13b, the electrode protrusion 112b and the electrode body 111b. Figure 7 The electrical signal transmission channel of the second electrode includes two parallel branches, namely L3 and L4. The current direction is set as the second direction. The current of the L3 branch flows through the second electrode structure 122a, the second connecting bridge 14a, the first electrode structure 121a and the second electrode structure 122b. The current of the L4 branch flows through the second electrode structure 122a, the first electrode structure 121a, the second connecting bridge 14b and the second electrode structure 122b. The first electrode structure 121a of the L3 branch and the first electrode structure 121a of the L4 branch can be regarded as being in series.

[0057] Depend on Figure 6 and Figure 7 It can be seen that the electrical signal transmission channel of the first electrode 11 includes two parallel branches, and the electrical signal transmission channel of the second electrode 12 also includes two parallel branches. That is, the impedance of the first electrode 11 and the impedance of the second electrode 12 are both small. Although the two parallel branches in the electrical signal transmission channel of the second electrode 12 are also connected in series, the series connection has little effect on the impedance. The impedance of the first electrode 11 is slightly greater than the impedance of the second electrode 12, but the difference between the impedance of the first electrode 11 and the impedance of the second electrode 12 is within the acceptable impedance error range. The impedance of the first electrode 11 and the impedance of the second electrode 12 tend to be consistent and both are small, ensuring that the transmission speed of the electrical signal transmission channel of the first electrode 11 and the electrical signal transmission speed of the second electrode 12 tend to be consistent and both are faster.

[0058] In the above embodiments, the first electrode 11 is one of a sensing electrode and a driving electrode, and the second electrode 12 is the other of a sensing electrode and a driving electrode. For example, the first electrode 11 is a sensing electrode, and the second electrode 12 is a driving electrode. Another example is that the first electrode 11 is a driving electrode, and the second electrode 12 is a sensing electrode.

[0059] In this embodiment, the touch function component includes a first electrode 11, a second electrode 12, a first connecting bridge 13, and a second connecting bridge 14. Of two adjacent first electrodes 11, at least one first electrode 11 includes an electrode body 111 and an electrode protrusion 112. In the same first electrode 11, the electrode body 111 extends in a first direction to form the electrode protrusion 12, or the electrode body 111 extends toward and contacts the electrode protrusion 112. Two adjacent first electrodes include two or more electrode protrusions. The second electrode 12 includes a first electrode structure 121 located between two adjacent electrode protrusions 112 and second electrode structures 122 located on both sides of the first electrode structure 121. The second electrode structure 122 extends around the electrode protrusion 112 toward the receiving area to form the first electrode structure 121, or the second electrode structure 122 extends around the electrode protrusion 112 toward and contacts the first electrode structure 121. The first connecting bridge 13 electrically connects the electrode protrusion 112 of one first electrode 11 to the electrode body 111 of the adjacent first electrode 11. The second connecting bridge 14 electrically connects the first electrode structure 121 and the second electrode structure 122. In two adjacent first electrodes 11, the electrode body 111, the electrode protrusion 112, and the first connecting bridge 13 can form two or more parallel branches. In the second electrode 12, the first electrode structure 121 and the second electrode structure 122 can form two or more parallel branches. The structure of the electrical signal transmission channel of the first electrode 11 is basically the same as the structure of the electrical signal transmission channel of the second electrode 12. The parallel connection of branches in the electrical signal transmission channel reduces the impedance of the first electrode 11 and the impedance of the second electrode 12, ensuring that the transmission speed of the electrical signal transmission channel of the first electrode 11 is faster than that of the second electrode 12, thereby improving the response speed of the display panel, including the touch function components, to operation.

[0060] In the above embodiments, the first connecting bridge 13 and the second connecting bridge 14 may be arranged around the first electrode structure 121.

[0061] In some embodiments, each first electrode 11 has at least one electrode protrusion 112 on the side adjacent to the adjacent first electrode 11, and the electrode protrusions 112 of two adjacent first electrodes 11 are disposed opposite to each other in a second direction. For example, as Figure 1 , Figure 2 and Figure 3As shown, each first electrode 11 has an electrode protrusion 112 on the side closest to the adjacent first electrode 11, and two adjacent first electrodes 11 have two electrode protrusions 112. A second electrode structure 122 is located in the receiving area formed between the two electrode protrusions 112, and a first connecting bridge 13 and a second connecting bridge 14 are alternately arranged around the first electrode structure 121. Figure 1 As shown, starting with a second connecting bridge 14, surrounding the first electrode structure 121, in a clockwise direction, the sequence is: second connecting bridge 14, first connecting bridge 13, second connecting bridge 14, and first connecting bridge 13; starting with a second connecting bridge 14, surrounding the first electrode structure 121, in a counterclockwise direction, the sequence is: second connecting bridge 14, first connecting bridge 13, second connecting bridge 14, and first connecting bridge 13.

[0062] In other embodiments, in two adjacent first electrodes 11, one of the first electrodes 11 has at least two electrode protrusions 112 on the side closer to the other first electrode 11, and the two or more electrode protrusions 112 of the same first electrode 11 are arranged opposite to each other in a second direction.

[0063] In some examples, among two adjacent first electrodes 11, one first electrode 11 has at least two electrode protrusions 112 on the side closer to the other first electrode 11, while the other first electrode 11 does not have electrode protrusions 112 on the side closer to the adjacent first electrode 11, such as... Figure 4 As shown, the upper first electrode 11 has two electrode protrusions 112 on the side near the lower first electrode 11, while the lower first electrode 11 does not have electrode protrusions on the side near the upper first electrode 11.

[0064] In other examples, among two adjacent first electrodes 11, one electrode 11 has at least two electrode protrusions 112 on the side closer to the other first electrode 11, and the other first electrode 11 has at least one electrode protrusion 112 on the side closer to the adjacent first electrode 11. The number of electrode protrusions 112 on the side closer to the other first electrode 11 is greater than the number of electrode protrusions 112 on the side closer to the adjacent first electrode 11. The electrode protrusions 112 of each of the two adjacent first electrodes 11 can be arranged opposite each other in a first direction, and the two electrode protrusions 112 arranged opposite each other in the first direction can be electrically connected by a connecting bridge to make the electrode protrusions 112 of the two adjacent first electrodes 11 conductive, forming a branch in the electrical signal transmission channel of the first electrode 11. At least one electrode protrusion 112 on the side of one first electrode 11 close to the other first electrode 11 has no opposing electrode protrusion 112 in the first direction. This electrode protrusion 112 can be connected to the electrode body 111 of the other first electrode 11 through the first connecting bridge 13, so that the electrode protrusion 112 of one first electrode 11 is connected to the electrode body 111 of the other first electrode 11, forming a branch in the electrical signal transmission channel of the first electrode 11.

[0065] A receiving area can be formed between two adjacent electrode protrusions arranged opposite each other in the second direction. A first electrode structure 121 is located within the receiving area, and around the first electrode structure 121, a plurality of first connecting bridges are sequentially arranged, and a plurality of second connecting bridges are sequentially arranged. For example... Figure 4 As shown, starting with a second connecting bridge 14, surrounding the first electrode structure 121, in a clockwise direction, the sequence is: second connecting bridge 14, second connecting bridge 14, first connecting bridge 13, and first connecting bridge 13; starting with a first connecting bridge 13, surrounding the first electrode structure 121, in a counterclockwise direction, the sequence is: first connecting bridge 13, first connecting bridge 13, second connecting bridge 14, and second connecting bridge 14.

[0066] In some embodiments, when the first electrode 11 has an electrode protrusion 112, the number of electrode protrusions 112 on the first electrode 11 is not limited. For example, as Figure 1 , Figure 2 and Figure 3 As shown, a first electrode 11 in the repeating unit may include an electrode protrusion 112. For example, as... Figure 4 As shown, a first electrode 11 in the repeating unit may include two electrode protrusions 112. For example, Figure 8 This is a schematic diagram of the structure of a repeating unit of the touch function component in yet another embodiment of this application, as shown below. Figure 8As shown, a first electrode 11 in the repeating unit may include three electrode protrusions 112, and two receiving spaces are formed between the three electrode protrusions 112, that is, two first electrode structures 121 are disposed between the three electrode protrusions 112. Figure 8 As shown, three first connecting bridges 13 are arranged sequentially in the second direction, and three second connecting bridges 14 are arranged sequentially in the second direction; around each first electrode structure 121, two first connecting bridges 13 are arranged sequentially, and two second connecting bridges 14 are arranged sequentially; for example, starting with the second connecting bridge 14 located in the upper left, around the first electrode structure 121 on the left, in a clockwise direction, the distribution of connecting bridges is as follows: second connecting bridge 14, second connecting bridge 14, first connecting bridge 13, and second connecting bridge 14; or, starting with the second connecting bridge 14 located in the upper middle, around the first electrode structure 121 on the right, in a clockwise direction, the distribution of connecting bridges is as follows: second connecting bridge 14, second connecting bridge 14, first connecting bridge 13, and second connecting bridge 14.

[0067] In some application scenarios, touch function components need to be applied to display panels with an aspect ratio of 1:1. Correspondingly, in order to further improve the response speed of the display panel with touch function to operation, the difference between the impedance of the first electrode 11 and the impedance of the second electrode 12 can be further reduced or the impedance of the first electrode 11 and the impedance of the second electrode 12 can be made the same.

[0068] In some examples, the touch functionality component may also include a third connecting bridge. Figure 9 This is a schematic diagram of the repeating unit of the touch function component in another embodiment of this application. Figure 9 As shown, the third connecting bridge 15 can electrically connect two adjacent electrode protrusions 112 so that the two adjacent electrode protrusions 112 are connected in series.

[0069] Figure 10 It shows Figure 9 The electrical signal transmission channel of the first electrode in the middle, Figure 11 It shows Figure 9 The electrical signal transmission channel of the second electrode. Figure 10 The electrical signal transmission channel of the first electrode includes two parallel branches, namely L5 and L6. The current direction is set as the first direction. The current of the L5 branch flows through the electrode body 111c, the electrode protrusion 112c, the first connecting bridge 13c and the electrode body 111d. The current of the L6 branch flows through the electrode body 111c, the first connecting bridge 13d, the electrode protrusion 112d and the electrode body 111d. The third connecting bridge 15 connects the electrode protrusion 112c in the L5 branch and the electrode protrusion 112d in the L6 branch in series.

[0070] Figure 11The electrical signal transmission channel of the second electrode includes two parallel branches, namely L7 and L8. The current direction is set as the second direction. The current of the L7 branch flows through the second electrode structure 122c, the second connecting bridge 14c, the first electrode structure 121c and the second electrode structure 122d. The current of the L8 branch flows through the second electrode structure 122c, the first electrode structure 121c, the second connecting bridge 14d and the second electrode structure 122d. The first electrode structure 121c in the L7 branch and the first electrode structure 121c in the L8 branch can be regarded as being in series.

[0071] Depend on Figure 10 and Figure 11 Therefore, when the touch function component includes the third connecting bridge 15, the parallel branches in the electrical signal transmission channel of the first electrode 11 also have a series relationship, so that the structure of the electrical signal transmission channel of the first electrode 11 is consistent with the structure of the electrical signal transmission channel of the second electrode 12, further reducing the difference between the impedance of the first electrode 11 and the impedance of the second electrode 12, or making the impedance of the first electrode 11 the same as the impedance of the second electrode 12.

[0072] In some examples, the first electrode structure 121 may include two separate sub-electrode structures. Figure 12 This is a schematic diagram of the repeating unit of the touch function component in another embodiment of this application. For example... Figure 12 As shown, the first electrode structure 121 may include a first sub-electrode structure 1211 and a second sub-electrode structure 1212, with a first blanking region 16 formed between the first sub-electrode structure 1211, the second sub-electrode structure 1212, and the electrode protrusion 112. The first blanking region 16 separates and insulates the first sub-electrode structure 1211 from the second sub-electrode structure 1212. A second electrode structure 122 on one side of the first electrode structure 121 may extend around the electrode protrusion 112 into the receiving area to form the first sub-electrode structure 1211, or the first sub-electrode structure 1211 may extend into and contact the second electrode structure 122 on the same side of the first electrode structure 121. A second electrode structure 122 on the other side of the first electrode structure 121 may extend around the electrode protrusion 112 into the receiving area to form the second sub-electrode structure 1212, or the second sub-electrode structure 1212 may extend into and contact the second electrode structure 122 on the other side of the first electrode structure 121.

[0073] Figure 13 It shows Figure 12 The electrical signal transmission channel of the first electrode in the middle, Figure 14 It shows Figure 12 The electrical signal transmission channel of the second electrode. Figure 13The electrical signal transmission channel of the first electrode includes two parallel branches, namely L9 and L10. The current direction is set as the first direction. The current of the L9 branch flows through the electrode body 111e, the first connecting bridge 13f, the electrode protrusion 112f and the electrode body 111f, and the current of the L10 branch flows through the electrode body 111e, the electrode protrusion 112e, the first connecting bridge 13e and the electrode body 111f.

[0074] Figure 14 The electrical signal transmission channel of the second electrode includes two parallel branches, namely L11 and L12. The current direction is set as the second direction. The current of the L11 branch flows through the second electrode structure 122e, the second sub-electrode structure 1212, the second connecting bridge 14f, and the second electrode structure 122f. The current of the L12 branch flows through the second electrode structure 122e, the second connecting bridge 14e, the first sub-electrode structure 1211, and the second electrode structure 122f. The first sub-electrode structure 1211 and the second sub-electrode structure 1212 are insulated from each other.

[0075] Depend on Figure 13 and Figure 14 Therefore, when the first electrode structure 121 includes the first sub-electrode structure 1211 and the second sub-electrode structure 1212, the parallel branches in the electrical signal transmission channel of the second electrode 12 do not have a series relationship, so that the structure of the electrical signal transmission channel of the first electrode 11 is consistent with the structure of the electrical signal transmission channel of the second electrode 12, further reducing the difference between the impedance of the first electrode 11 and the impedance of the second electrode 12, or making the impedance of the first electrode 11 the same as the impedance of the second electrode 12.

[0076] In some embodiments, a blank area can be provided between the first electrode 11 and the second electrode 12 to reduce the area of ​​the first electrode 11 and the second electrode 12, thereby saving electrode material used to fabricate the touch functional components. Other virtual electrodes can also be provided within the blank area as needed, which will not be elaborated here. Figure 2 , Figure 3 , Figure 4 , Figure 8 , Figure 9 and Figure 12 As shown, a second blank area 17 is formed between the electrode body 111 and the second electrode structure 122. Neither the first electrode 11 nor the second electrode 12 is disposed in the second blank area 17. The second blank area 17 can be a hollow area or have other structures; this is not limited here.

[0077] In some embodiments, in order to improve the visibility of the display panel including the touch function component, the orthographic projection of the plurality of first connecting bridges 13 can be at least partially overlapped with the narrowest part of the first gap, and the orthographic projection of the plurality of second connecting bridges 14 can be at least partially overlapped with the orthographic projection of the end with the smallest cross-sectional width of the electrode protrusion 112. With such a configuration, the extension directions of the plurality of first connecting bridges 13 can be consistent, and the extension directions of the plurality of second connecting bridges 14 can be consistent. Connecting bridges with consistent directions are easier to manufacture. Figure 15 This is a schematic diagram illustrating an example of the extension direction of the first connecting bridge and the second connecting bridge provided in an embodiment of this application. Figure 15 As shown, the extension directions of the multiple first connecting bridges 13 are consistent, and the extension directions of the multiple second connecting bridges 14 are also consistent.

[0078] To further improve the visibility of the display panel, including the touch-enabled components, and to minimize the impact of the first connecting bridge 13 and the second connecting bridge 14 on the visibility of the display panel, the extension directions of the first connecting bridge 13 and the second connecting bridge 14 may be consistent with the arrangement direction of the pixel units of the display panel, or the angle between them and the arrangement direction of the pixel units of the display panel is less than an acceptable deviation angle threshold, or the extension direction of the angle bisector of the first angle is consistent with the extension direction of the first angle, or the angle between them and the angle bisector of the first angle is less than an acceptable deviation angle threshold. The first angle is the angle formed by the diagonal direction of the pixel units of the display panel and the arrangement direction of the pixel units of the display panel.

[0079] This application also provides a display panel that includes the touch function components described in the above embodiments. The specific details of the touch function components can be found in the relevant descriptions in the above embodiments, and will not be repeated here. The display panel may include display structures found in devices such as mobile phones, computers, tablets, televisions, and electronic paper, and is not limited thereto.

[0080] In the display panel of this application embodiment, the driving electrodes located at both ends of the touch functional component can be connected to a first signal transmission line, and the sensing electrode located at one end of the touch functional component can be connected to a second signal transmission line. For example, if the current direction of the driving electrode is a first direction and the current direction of the sensing electrode is a second direction, then the driving electrodes at both ends of the touch functional component in the first direction are connected to the first signal transmission line, and the sensing electrode at one end of the touch functional component in the second direction is connected to the second signal transmission line.

[0081] In order to ensure that the total impedance of the first electrode 11 in the display panel is consistent with or close to the total impedance of the second electrode 12, appropriate touch function components can be adapted according to the aspect ratio of the display panel.

[0082] In some examples, the aspect ratio of the display panel is 1:M, and M > 1, meaning the length of the display panel is less than its width. If the display panel is in portrait orientation, the first direction can be the length direction of the display panel, and the second direction can be the width direction. For example, it can be used as follows: Figure 3 The design of the touch-sensitive functional components. Figure 3 In the repeating unit shown, the impedance of the first electrode 11 is slightly greater than that of the second electrode 12. The current direction of the first electrode 11 is the first direction, and the current direction of the second electrode 12 is the second direction. The length of the display panel is less than its width. The total impedance of the first electrode 11 can be appropriately reduced, and the total impedance of the second electrode 12 can be appropriately increased, so that the total impedance of the first electrode 11 is consistent with or tends to be consistent with the total impedance of the second electrode 12.

[0083] In some examples, the aspect ratio of the display panel is M:1, and M > 1, meaning the length of the display panel is greater than its width. If the display panel is landscape, the first direction can be the width direction of the display panel, and the second direction can be the length direction. For example, it can be done as follows: Figure 2 The design of the touch-sensitive functional components. Figure 2 In the repeating unit shown, the impedance of the first electrode 11 is slightly greater than that of the second electrode 12. The current direction of the first electrode 11 is the first direction, and the current direction of the second electrode 12 is the second direction. The length of the display panel is greater than its width. The total impedance of the second electrode 12 can be appropriately increased, and the total impedance of the first electrode 11 can be appropriately decreased, so that the total impedance of the first electrode 11 is consistent with or tends to be consistent with the total impedance of the second electrode 12.

[0084] In some examples, when the aspect ratio of the display panel is 1:1, the first electrode structure includes a first sub-electrode structure and a second sub-electrode structure, with a first blank area formed between the first sub-electrode structure, the second sub-electrode structure, and the electrode protrusion. For example, a first blank area can be formed between these components. Figure 12 The design of the touch function components is detailed in the relevant descriptions in the above embodiments, and will not be repeated here. Alternatively, when the aspect ratio of the display panel is 1:1, a third connecting bridge is provided between two adjacent electrode protrusions. For example, a third connecting bridge can be used. Figure 9 The design of the touch function components is detailed in the relevant descriptions in the above embodiments, and will not be repeated here. In the repeating units of the touch function components of the above two structures, the impedance of the first electrode 11 is the same as or tends to be the same as the impedance of the second electrode 12. Therefore, the total impedance of the first electrode 11 in the display panel is also the same as or tends to be the same as the total impedance of the second electrode 12.

[0085] This application also provides a display device, which may include the display panel in the above embodiments. For details regarding the display panel, please refer to the relevant descriptions in the above embodiments, which will not be repeated here. The display device may specifically include devices with display functions such as mobile phones, computers, tablets, televisions, and electronic paper, and is not limited thereto.

[0086] It should be clarified that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. For the display panel embodiments and display device embodiments, relevant parts can be referred to the description section of the touch function component embodiments. This application is not limited to the specific structures described above and shown in the figures. Those skilled in the art can make various changes, modifications, and additions after understanding the spirit of this application. Furthermore, for the sake of brevity, detailed descriptions of known technologies are omitted here.

[0087] Those skilled in the art will understand that the above embodiments are exemplary and not restrictive. Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Based on a study of the drawings, specification, and claims, those skilled in the art should be able to understand and implement other variations of the disclosed embodiments. In the claims, the term "comprising" does not exclude other means or steps; the quantifier "a" does not exclude a plurality; the terms "first" and "second" are used to identify names and not to indicate any particular order. Any reference numerals in the claims should not be construed as limiting the scope of protection. The appearance of certain technical features in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. A touch-sensitive functional component, characterized in that, include: First electrode, a plurality of first electrodes are successively distributed along a first direction, in two adjacent first electrodes, at least one first electrode includes an electrode body and an electrode protrusion, the electrode body of the same first electrode extends in the first direction to form the electrode protrusion or the electrode body of the same first electrode is in contact with the electrode protrusion, two adjacent first electrodes include two or more electrode protrusions, a receiving area is formed between two adjacent electrode protrusions, the cross section of the end of the electrode protrusion extending toward the electrode body is the minimum cross section of the electrode protrusion, and two adjacent electrode protrusions are separated and insulated; The second electrode extends along a second direction and includes a first electrode structure located in the receiving area and second electrode structures located on both sides of the receiving area. The second electrode structure extends around the electrode protrusion into the receiving area to form the first electrode structure, or the second electrode structure extends around the electrode protrusion into the first electrode structure and contacts and connects with it. The first electrode structure includes a first sub-electrode structure and a second sub-electrode structure. A first blank area is formed between the first sub-electrode structure, the second sub-electrode structure and the electrode protrusion to separate and insulate the first sub-electrode structure from the second electrode structure. The first connecting bridge electrically connects the electrode protrusion of one of two adjacent first electrodes to the electrode body of the other first electrode. The orthographic projection of the plurality of first connecting bridges at least partially coincides with the narrowest part of the first gap. The first gap is the gap between the electrode protrusion of one of two adjacent first electrodes and the electrode body of the other first electrode. The electrode protrusion of one of two adjacent first electrodes and the electrode body of the other first electrode are not in contact. The second connecting bridge electrically connects the first electrode structure and the second electrode structure. The orthographic projection of the second connecting bridge at least partially coincides with the orthographic projection of the end with the smallest cross-sectional width in the electrode protrusion. The first connecting bridge and the second connecting bridge are alternately arranged around the first electrode structure.

2. The touch function component according to claim 1, characterized in that, Each of the first electrodes has at least one electrode protrusion on the side close to the adjacent first electrode, and the electrode protrusions of two adjacent first electrodes are arranged opposite each other in the second direction.

3. The touch function component according to claim 1, characterized in that, In two adjacent first electrodes, one of the first electrodes has at least two electrode protrusions on the side closer to the other first electrode, and two or more electrode protrusions of the same first electrode are arranged opposite each other in a second direction and the receiving area is formed between the electrode protrusions.

4. The touch function component according to claim 1, characterized in that, A second blank area is formed between the electrode body and the second electrode structure.

5. The touch function component according to claim 1, characterized in that, The cross-sectional width of the electrode protrusion in the first direction first increases and then decreases.

6. The touch function component according to any one of claims 1 to 5, characterized in that, The first electrode is one of the sensing electrode and the driving electrode, and the second electrode is the other of the sensing electrode and the driving electrode.

7. A display panel, characterized in that, Includes the touch function component as described in any one of claims 1 to 5.

8. The display panel according to claim 7, characterized in that, The aspect ratio of the display panel is 1:M, the first direction is the length direction of the display panel, and the second direction is the width direction of the display panel. Alternatively, the aspect ratio of the display panel is M:1, where the first direction is the width direction of the display panel and the second direction is the length direction of the display panel. Alternatively, the aspect ratio of the display panel is 1:

1. Where M > 1.

9. A display device, characterized in that, Includes the display panel as described in claim 7 or 8.

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