Display panel and electronic device

Abstract

The application provides a display panel and an electronic device, the display panel comprising a driving substrate and a plurality of light-emitting units arranged on the driving substrate, wherein one side of the driving substrate arranged with the light-emitting units is provided with a first electrode layer, the first electrode layer comprises a cathode pattern and a plurality of touch units arranged in an array, and the cathode pattern and the touch units are insulated from each other. The application forms the cathode pattern and the touch units on the first electrode layer at the same time, so that the touch units are arranged in the same layer as the cathode pattern, and thus a touch layer does not need to be separately manufactured, the thickness of the display panel is reduced, and the problem of a relatively thick thickness of an existing touch display device is alleviated.

Description

Technical Field

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

[0002] With the development of display technology, touch display devices provide a new human-computer interaction interface. Current touch display devices typically use an externally mounted touchscreen or an integrated touchscreen within the display panel. However, regardless of whether an external or integrated design is used, the touchscreen needs to be manufactured separately, making it difficult to reduce the thickness of the touch display device, resulting in a relatively thick device. Summary of the Invention

[0003] This application provides a display panel and an electronic device to alleviate the technical problem of the excessive thickness of existing touch display devices.

[0004] To solve the above problems, the technical solution provided in this application is as follows:

[0005] This application provides a display panel, which includes:

[0006] Drive substrate;

[0007] Multiple light-emitting units are disposed on the driving substrate;

[0008] The driving substrate has a first electrode layer on one side of the light-emitting unit. The first electrode layer includes a cathode pattern and a plurality of touch units arranged in an array. The cathode pattern and the touch units are insulated from each other. The plurality of light-emitting units include the cathode pattern.

[0009] In the display panel provided in this application embodiment, the cathode pattern includes multiple openings, and the touch unit is located within the openings.

[0010] In the display panel provided in this application embodiment, each touch unit includes a main electrode and branch electrodes electrically connected to the main electrode. The main electrode includes a first main electrode extending along a first direction and a second main electrode extending along a second direction. The display panel includes a plurality of touch areas arranged in an array. A touch unit is located in a touch area. The first main electrode and the second main electrode intersect to divide the touch area into four quadrants. A plurality of branch electrodes are provided in each quadrant, and there is a gap between any two adjacent branch electrodes.

[0011] In the display panel provided in the embodiments of this application, in each quadrant region, at least one branch electrode is connected to the first main electrode, each branch electrode includes at least one sub-electrode, each sub-electrode includes a first electrode portion and a second electrode portion connected in series, the first electrode portion and the second electrode portion have an included angle, and the end of the first electrode portion away from the second electrode portion is electrically connected to the first main electrode.

[0012] When the branch electrode includes k sub-electrodes, the k sub-electrodes are connected and arranged sequentially along the second direction, k≥2, and k is a positive integer; among the k sub-electrodes, the first electrode portion of the e-th sub-electrode is connected in series with the first electrode portion of the (e+1)-th sub-electrode, e≥1, k≥e+1, and e is a positive integer.

[0013] In the display panel provided in the embodiments of this application, the first electrode portion extends along the second direction, and the second electrode portion extends along the first direction.

[0014] In the display panel provided in this application embodiment, within each quadrant region, the first main electrode is connected to f branch electrodes. The length of each segment of the first main electrode after being divided into f+1 equal parts is a. The first main electrode has f division points. Each branch electrode is electrically connected to the first main electrode at one of the division points. The length of the second electrode portion is less than a, where f≥1, a>0, and f is a positive integer. Within each quadrant region, the length of each segment of the second main electrode after being divided into f+1 equal parts is b. The length of the first electrode portion of the sub-electrode connected to the first main electrode is less than b, where b>0.

[0015] In the display panel provided in this application embodiment, within each quadrant region, the first main electrode is connected to f branch electrodes. In the direction along the first main electrode away from the second main electrode, the number of sub-electrodes of the nth branch electrode is less than the number of sub-electrodes of the mth branch electrode, where f ≥ m > n ≥ 1, and f, m, and n are all positive integers; the number of sub-electrodes of the nth branch electrode is p fewer than the number of sub-electrodes of the mth branch electrode, where m = n + 1, p ≥ 1, and p is a positive integer.

[0016] In the display panel provided in the embodiments of this application, in each quadrant region, f branch electrodes are connected to the first main electrode. In the direction away from the second main electrode along the first main electrode, the number of sub-electrodes of the nth branch electrode is less than the number of sub-electrodes of the mth branch electrode, and the number of sub-electrodes of the sth branch electrode is also less than the number of sub-electrodes of the mth branch electrode, where f ≥ s > m > n ≥ 1, and f, s, m, and n are all positive integers.

[0017] In the display panel provided in the embodiments of this application, the number of sub-electrodes of the nth branch electrode is p fewer than the number of sub-electrodes of the (n+1)th branch electrode, and the number of sub-electrodes of the sth branch electrode is p fewer than the number of sub-electrodes of the (s-1)th branch electrode, where m≥n+1, m≤s-1, p≥1, and p is a positive integer.

[0018] In the display panel provided in this application embodiment, a plurality of sub-pixels are arranged in an array on the driving substrate, each sub-pixel corresponds to a light-emitting unit, and there is a gap between adjacent sub-pixels. The touch unit is arranged corresponding to the gap, and the main electrode and the branch electrode surround the sub-pixel. The sub-pixel includes a green sub-pixel, and the extension direction of the main electrode portion and the branch electrode portion surrounding the green sub-pixel is consistent with the arrangement direction of the green sub-pixel.

[0019] In the display panel provided in the embodiments of this application, in any two adjacent quadrants, the branch electrode in one quadrant and the branch electrode in the other quadrant form an axisymmetric pattern.

[0020] In the display panel provided in the embodiments of this application, in each quadrant region, the branch electrodes on the first main electrode and the branch electrodes on the second main electrode form an axisymmetric pattern.

[0021] In the display panel provided in this application embodiment, the driving substrate includes a driving circuit and at least one first signal line and multiple second signal lines disposed on the same layer as a portion of the metal layer of the driving circuit. The cathode pattern is electrically connected to at least one first signal line, and each touch unit is electrically connected to a corresponding second signal line.

[0022] In the display panel provided in this application embodiment, the driving substrate further includes:

[0023] A planarization layer covers the driving circuit, the planarization layer including an opening corresponding to the second signal line, the opening of the planarization layer exposing a portion of the second signal line;

[0024] A pixel definition layer is overlaid on the planarization layer. The pixel definition layer includes an opening corresponding to the opening of the planarization layer. The opening of the pixel definition layer and the opening of the planarization layer form an undercut structure.

[0025] The first electrode layer is located on the side of the pixel definition layer away from the planarization layer. The first electrode layer is broken at the undercut structure to form the cathode pattern and the touch unit. The touch unit extends into the opening of the pixel definition layer and the opening of the planarization layer and is electrically connected to the second signal line.

[0026] In the display panel provided in this application embodiment, there is a gap between the cathode pattern and the touch unit within the opening of the pixel definition layer and the opening of the planarization layer.

[0027] In the display panel provided in the embodiments of this application, each touch unit is provided with at least one first bridging point. The touch unit is electrically connected to the corresponding second signal line through the first bridging point. The first bridging point is located at the intersection of the first main electrode and the second main electrode.

[0028] The cathode pattern is provided with at least one second bridging point, and the cathode pattern is electrically connected to the first signal line through the second bridging point. Each second bridging point is located in the gap between two adjacent touch units.

[0029] In the display panel provided in this application embodiment, the second bridging point includes a first sub-bridging point. The first sub-bridging point is located within the gap formed by four adjacent touch units, and there is a first sub-bridging point between any four adjacent touch units.

[0030] In the display panel provided in this application embodiment, the second bridging point further includes a second sub-bridging point, which is located between two adjacent first sub-bridging points, and the distance from the second sub-bridging point to the two adjacent first sub-bridging points is equal.

[0031] In the display panel provided in the embodiments of this application, each touch unit is further provided with a plurality of third bridge points, the plurality of third bridge points are located on the first main electrode and / or the second main electrode, and the distance from each third bridge point to the first bridge point is equal.

[0032] This application also provides an electronic device that includes a display panel from one of the foregoing embodiments.

[0033] The beneficial effects of this application are as follows: In the display panel and electronic device provided by this application, the display panel includes a driving substrate and a plurality of light-emitting units disposed on the driving substrate. A first electrode layer is disposed on one side of the driving substrate where the light-emitting units are disposed. The first electrode layer includes a cathode pattern and a plurality of touch units arranged in an array. The cathode pattern and the touch units are insulated from each other. This application simultaneously forms the cathode pattern and the touch units on the first electrode layer, so that the touch units are disposed on the same layer as the cathode pattern. Thus, there is no need to fabricate a separate touch layer, reducing the thickness of the display panel and solving the problem of the excessive thickness of existing touch display devices. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments or prior art, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a top view of a display panel provided in an embodiment of this application.

[0036] Figure 2 This is a cross-sectional structural diagram of a display panel provided in an embodiment of this application.

[0037] Figure 3 for Figure 1 A detailed structural diagram of one of the touch units.

[0038] Figure 4 for Figure 3 A detailed structural diagram of the first quadrant region.

[0039] Figure 5 for Figure 4 A schematic diagram of pixel arrangement in the first quadrant of the image.

[0040] Figure 6 This is a top view of another display panel structure provided in an embodiment of this application.

[0041] Figure 7 for Figure 6 A detailed structural diagram of one of the touch units.

[0042] Figure 8 for Figure 7 A detailed structural diagram of the first quadrant region.

[0043] Figure 9 This is a top view schematic diagram of another display panel provided in an embodiment of this application.

[0044] Figure 10 This is a top view schematic diagram of another display panel provided in an embodiment of this application. Detailed Implementation

[0045] The following descriptions of the embodiments are based on the accompanying illustrations, illustrating specific embodiments in which this application can be implemented. Directional terms used in this application, such as [up], [down], [front], [back], [left], [right], [inner], [outer], [side], etc., are merely for reference to the accompanying drawings. Therefore, the directional terms used are for illustration and understanding of this application, and not for limiting this application. In the figures, structurally similar units are denoted by the same reference numerals. In the figures, the thickness of some layers and regions is exaggerated for clarity and ease of description. That is, the dimensions and thicknesses of each component shown in the figures are arbitrarily shown, but this application is not limited thereto.

[0046] Please refer to Figures 1 to 5 , Figure 1 This is a top view of a display panel provided in an embodiment of this application. Figure 2 This is a cross-sectional structural diagram of a display panel provided in an embodiment of this application. Figure 3 for Figure 1 A detailed structural diagram of a touch unit. Figure 4 for Figure 3 Detailed structural diagram of the first quadrant region. Figure 5 for Figure 4 A schematic diagram of pixel arrangement in the first quadrant of the display panel 100. The display panel 100 includes a driving substrate 10 and a plurality of light-emitting units 30 disposed on the driving substrate 10. A first electrode layer 20 is disposed on one side of the driving substrate 10 where the light-emitting units 30 are disposed. The first electrode layer 20 includes a cathode pattern 21 and a plurality of touch units 22 arranged in an array, wherein the cathode pattern 21 and the touch units 22 are insulated from each other. The plurality of light-emitting units 30 include the cathode pattern 21.

[0047] Thus, by simultaneously forming the cathode pattern 21 and the touch unit 22 on the first electrode layer 20, and setting the touch unit 22 and the cathode pattern 21 on the same layer, there is no need to make a separate touch layer, which reduces the thickness of the display panel 100 and solves the problem of the excessive thickness of existing touch display devices.

[0048] Optionally, such as Figure 1As shown, multiple touch units 22 are arranged at intervals along a first direction X, and simultaneously arranged at intervals along a second direction Y, forming an array on the driving substrate 10. Each touch unit 22 is quadrilateral in shape; in the first direction X, the side lengths of two adjacent touch units 22 are opposite; in the second direction Y, the side lengths of two adjacent touch units 22 are opposite.

[0049] Each of the touch units 22 is a minimum repeating unit, and each touch unit 22 includes a main electrode 23 and branch electrodes 24 electrically connected to the main electrode 23. The main electrode 23 includes a first main electrode 231 extending along the first direction X and a second main electrode 232 extending along the second direction Y, and the first main electrode 231 and the second main electrode 232 intersect.

[0050] It should be noted that, Figure 1 Six touch units 22 are illustrated, but this application is not limited to this; the display panel 100 of this application may include more or fewer touch units 22. Furthermore, the first direction X is a horizontal direction, the second direction Y is a vertical direction, and the angle between the first direction X and the second direction Y is 90 degrees. However, this application is not limited to this; the angle between the first direction X and the second direction Y in this application may also be other angles greater than 0 degrees.

[0051] It is understood that the touch unit 22 and the cathode pattern 21 are disposed on the same layer and insulated from each other. They need to perform different functions; for example, the touch unit 22 is used to implement the touch function of the display panel 100, while the cathode pattern 21 is used to implement the display function of the display panel 100. Therefore, they need to be connected to different signal lines. For this purpose, both the touch unit 22 and the cathode pattern 21 are provided with bridging points for conducting signals. For example, each touch unit 22 is provided with at least one first bridging point 230, and each cathode pattern 21 is provided with at least one second bridging point 210.

[0052] The first bridging point 230 is located at the intersection of the first main electrode 231 and the second main electrode 232, and the second bridging point 210 is located in the gap between two adjacent touch units 22. Optionally, the second bridging point 210 includes a first sub-bridging point 211, which is located in the gap formed by four adjacent touch units 22, and there is one first sub-bridging point 211 between any four adjacent touch units 22. By setting multiple first sub-bridging points 211, and distributing them evenly within the surface of the display panel 100, the voltage drop of the cathode pattern 21 can be reduced, thereby improving the uniformity of the display on the display panel 100.

[0053] Optionally, refer to Figure 2 To enable the touch unit 22 and the cathode pattern 21 to be connected to the corresponding signal lines, the driving substrate 10 of the display panel 100 is provided with a driving circuit 40 and at least one first signal line 50 and multiple second signal lines 60 disposed on the same layer as a portion of the metal layer of the driving circuit 40. The cathode pattern 21 is electrically connected to at least one of the first signal lines 50, and each touch unit 22 is electrically connected to a corresponding second signal line 60. The touch unit 22 is electrically connected to the corresponding second signal line 60 through the first bridging point 230, and the cathode pattern 21 is electrically connected to the first signal line 50 through the second bridging point 210.

[0054] Specifically, the display panel 100 includes a driving substrate 10 and light-emitting units 30 disposed on the driving substrate 10. The driving substrate 10 includes a substrate 11 and a driving circuit 40, a first signal line 50, and a second signal line 60 disposed on the substrate 11. The driving circuit 40 is used to drive the light-emitting units 30 to emit light.

[0055] Optionally, the substrate 11 can be a rigid substrate or a flexible substrate; when the substrate 11 is a rigid substrate, it may include a rigid substrate such as a glass substrate; when the substrate 11 is a flexible substrate, it may include a flexible substrate such as a polyimide (PI) film or an ultra-thin glass film. When the substrate 11 is a flexible substrate, the display panel 100 can realize functions such as bending, folding and turning.

[0056] Continue to refer to Figure 2The driving circuit 40 is disposed on the substrate 11. Optionally, a buffer layer (not shown) may be disposed between the driving circuit 40 and the substrate 11. The buffer layer may be a silicon oxide film, a silicon nitride film, or a multilayer comprising a silicon oxide film and a silicon nitride film. The buffer layer can prevent unwanted impurities or contaminants (such as moisture, oxygen, etc.) from diffusing from the substrate 11 into devices that may be damaged by these impurities or contaminants, while also providing a flat top surface.

[0057] The driving circuit 40 includes an active layer 41, a gate 42, a source 43, and a drain 44. To insulate the metal layers in the driving circuit 40 from each other, the display panel 100 also includes multiple insulating layers. Specifically, the active layer 41 is disposed on the substrate 11, and the material of the active layer 41 includes semiconductor materials such as metal oxides. The gate insulating layer 12 covers the active layer 41 and the substrate 11.

[0058] The gate electrode 42 is disposed on the gate insulating layer 12 and corresponds to the channel of the active layer 41. An interlayer insulating layer 13 covers the gate electrode 42 and the gate insulating layer 12. The source electrode 43 and the drain electrode 44 are disposed on the interlayer insulating layer 13. The source electrode 43 is electrically connected to the source region of the active layer 41 through a via in the interlayer insulating layer 13, and the drain electrode 44 is electrically connected to the drain region of the active layer 41 through another via in the interlayer insulating layer 13. The source region and the drain region are located on opposite sides of the channel of the active layer 41. A planarization layer 14 covers the source electrode 43, the drain electrode 44, and the interlayer insulating layer 13.

[0059] Optionally, the gate 42, the source 43, and the drain 44 are formed of metallic materials such as copper and molybdenum, and the gate insulating layer 12, the interlayer insulating layer 13, and the planarization layer 14 are all formed of inorganic materials such as silicon oxide or silicon nitride. It should be noted that the structure of the driving circuit 40 described in this application is not limited to this; the driving circuit 40 of this application may also adopt circuit structures such as bottom gate, double gate, or double-layer source-drain 44.

[0060] In this embodiment, the first signal line 50 is disposed on the same layer as the gate 42, and the second signal line 60 is disposed on the same layer as the source 43 or the drain 44. However, this application is not limited to this; the first signal line 50 and the second signal line 60 may also be disposed on the same layer as other metal layers of the driving circuit 40. It should be noted that "disposed on the same layer" in this application means that in the fabrication process, at least two different structures are obtained by patterning a film layer formed of the same material, and the at least two different structures are disposed on the same layer. For example, in this embodiment, the first signal line 50 and the gate 42 are obtained by patterning the same conductive film layer, and therefore the first signal line 50 and the gate 42 are disposed on the same layer.

[0061] The light-emitting unit 30 is disposed on the driving circuit 40. The light-emitting unit 30 includes a cathode pattern 21, a second electrode 31, and a light-emitting functional layer 32 located between the cathode pattern 21 and the second electrode 31. The second electrode 31 is an anode, disposed on the planarization layer 14, and electrically connected to the drain electrode 44 through a via on the planarization layer 14. The planarization layer 14 also has an opening at a position corresponding to the second signal line 60, which exposes a portion of the second signal line 60.

[0062] A pixel definition layer 15 covers the second electrode 31 and the planarization layer 14, and the pixel definition layer 15 has an opening at the position corresponding to the second electrode 31, which exposes a portion of the second electrode 31. Simultaneously, the pixel definition layer 15 also has another opening at the position corresponding to the second signal line 60, which is opposite to the opening of the planarization layer 14, and the two openings form an undercut structure, so that the pixel definition layer 15 and the planarization layer 14 together form an undercut structure.

[0063] The light-emitting functional layer 32 covers the pixel definition layer 15 and the second electrode 31, and is disconnected at the undercut structure. The first electrode layer 20 covers the light-emitting functional layer 32 and is disconnected at the undercut structure to form the cathode pattern 21 and the touch unit 22. That is, the cathode pattern 21 has an opening, and the touch unit 22 is located in the opening to achieve physical separation between the touch unit 22 and the cathode pattern 21, thereby achieving insulation between the touch unit 22 and the cathode pattern 21.

[0064] This ensures that the patterned first electrode layer 20 remains a single surface when viewed from above. Apart from the electrode pattern of the touch unit 22, the remaining area of ​​the first electrode layer 20 is the cathode pattern 21. The touch unit 22 and the cathode pattern 21 are physically separated to achieve insulation between them. The orthographic projection of the touch unit 22 on the substrate 11 contacts or overlaps with the orthographic projection of the cathode pattern 21 on the substrate 11; that is, there is no gap between the orthographic projection of the touch unit 22 on the substrate 11 and the orthographic projection of the cathode pattern 21 on the substrate 11. However, this application is not limited to this; a gap may also exist between the orthographic projection of the touch unit 22 and the orthographic projection of the cathode pattern 21 in this application.

[0065] Furthermore, by setting an undercut structure to physically separate the touch unit 22 from the cathode pattern 21, an electrical connection between the touch unit 22 and the second signal line 60 can also be achieved. Specifically, the touch unit 22 extends into the openings of the pixel definition layer 15 and the planarization layer 14, and is electrically connected to the second signal line 60. Moreover, there is a gap between the cathode pattern 21 and the touch unit 22 within the openings of the pixel definition layer 15 and the planarization layer 14. Of course, the electrical connection method between the touch unit 22 and the second signal line 60 is not limited to this; the touch unit 22 can also achieve electrical connection with the second signal line 60 through other perforation methods.

[0066] Similarly, the cathode pattern 21 can also be electrically connected to the first signal line 50 by drilling holes. Furthermore, by placing the first signal line 50, which is electrically connected to the cathode pattern 21, within the surface of the display panel 100, the bezel of the display panel 100 can be reduced compared to placing it around the perimeter of the display panel 100, making it easier to achieve a narrow bezel. This also helps to reduce the voltage drop of the cathode pattern 21, thereby improving the uniformity of the display on the display panel 100.

[0067] In addition, the display panel 100 may also include functional layers such as an encapsulation layer, an anti-reflection layer, and a protective layer disposed on the light-emitting unit 30, which will not be described in detail here.

[0068] The structure of the touch unit 22 will be specifically described below using one of the touch units 22 as an example.

[0069] Combined with reference Figure 3 and Figure 4Each touch unit 22 includes a main electrode 23 and branch electrodes 24 electrically connected to the main electrode 23. The main electrode 23 includes a first main electrode 231 extending along the first direction X and a second main electrode 232 extending along the second direction Y. The display panel 100 includes a plurality of touch areas arranged in an array, and one touch unit 22 is located within one of the touch areas. The first main electrode 231 and the second main electrode 232 intersect to divide the touch area into four quadrants, such as... Figure 3 The diagram shows a first quadrant region D1, a second quadrant region D2, a third quadrant region D3, and a fourth quadrant region D4. Each quadrant region includes a plurality of branch electrodes 24, and there is a gap between any two adjacent branch electrodes 24.

[0070] Furthermore, such as Figure 4 As shown, within each quadrant region, at least one branch electrode 24 is connected to the first main electrode 231. Each branch electrode 24 includes at least one sub-electrode 241, and each sub-electrode 241 includes a first electrode portion 2411 and a second electrode portion 2412 connected in series. The first electrode portion 2411 and the second electrode portion 2412 are electrically connected, and there is an included angle between the first electrode portion 2411 and the second electrode portion 2412. Optionally, the first electrode portion 2411 extends along the second direction Y, and the second electrode portion 2412 extends along the first direction X. The end of the first electrode portion 2411 away from the second electrode portion 2412 is electrically connected to the first main electrode 231.

[0071] Specifically, this application embodiment uses the first quadrant region D1 as an example to illustrate the structure of the touch unit 22. Continuing to refer to... Figure 4 The first main electrode 231 is connected to a plurality of branch electrodes 24. When a branch electrode 24 includes k sub-electrodes 241, the k sub-electrodes 241 are sequentially connected and arranged along the second direction Y, where k ≥ 2 and k is a positive integer. That is, when a branch electrode 24 includes a plurality of sub-electrodes 241, the plurality of sub-electrodes 241 are sequentially arranged along the second direction Y, and adjacent sub-electrodes 241 are electrically connected.

[0072] Optionally, in the k sub-electrodes 241, the first electrode portion 2411 of the e-th sub-electrode 241 is connected in series with the first electrode portion 2411 of the (e+1)-th sub-electrode 241, where e ≥ 1, k ≥ e+1, and e is a positive integer. Specifically, as... Figure 4The example shows three branch electrodes 24 electrically connected to the first main electrode 231, but this application is not limited to this. More or fewer branch electrodes 24 may be electrically connected to the first main electrode 231. The third branch electrode 24 of the three branch electrodes 24 includes three sub-electrodes 241, which are arranged sequentially in the second direction Y. One end of the first electrode portion 2411 of the first sub-electrode 241 is electrically connected to the first main electrode 231, and the other end is electrically connected to one end of the first electrode portion 2411 of the second sub-electrode 241. The other end of the first electrode portion 2411 of the second sub-electrode 241 is electrically connected to the first electrode portion 2411 of the third sub-electrode 241.

[0073] Furthermore, within each quadrant region, the first main electrode 231 is connected to f branch electrodes 24. The first main electrode 231 is divided into f+1 equal parts, each segment having a length of a. The first main electrode 231 has f division points. Each branch electrode 24 is electrically connected to the first main electrode 231 at one of the division points. The length of the second electrode portion 2412 is less than a, where f≥1, a>0, and f is a positive integer.

[0074] Specifically, continue to refer to Figure 4 Taking the first main electrode 231 electrically connected to three branch electrodes 24 as an example, the first main electrode 231 is divided into four equal segments, each segment having a length of 'a', meaning the first main electrode 231 is divided into four equal parts, resulting in three equal division points on the first main electrode 231. The first electrode portion 2411 of the first sub-electrode 241 in each branch electrode 24 is electrically connected to the first main electrode 231 at the division points, wherein the first sub-electrode 241 is the sub-electrode 241 located closer to the first main electrode 231 in the second direction Y.

[0075] Along the first direction X, the length of the second electrode portion 2412 of each of the sub-electrodes 241 is less than a, such that there is a gap Gap between any two adjacent branch electrodes 24, ensuring the continuity of the cathode pattern 21's conduction. Optionally, the length of the second electrode portion 2412 of each of the sub-electrodes 241 is the same. Figure 4 The example shown shows a gap Gap between the first branch electrode 24 and the second branch electrode 24, which are electrically connected to the first main electrode 231. This gap Gap allows the cathode pattern 21 inside the first sub-electrode 241 of the first branch electrode 24 to communicate with the cathode pattern 21 outside the first sub-electrode 241, so as to form a continuous cathode pattern 21.

[0076] Further optionally, within each quadrant region, the second main electrode 232 is divided into f+1 equal segments, each segment having a length of b, and the length of the first electrode portion 2411 of the sub-electrode 241 connected to the first main electrode 231 is less than b, where b > 0.

[0077] Specifically, continue to refer to Figure 4 In each quadrant region, at least one branch electrode 24 is also electrically connected to the second main electrode 232. Each branch electrode 24 also includes at least one sub-electrode 242. Each sub-electrode 242 includes a first electrode portion 2421 extending along a first direction X and a second electrode portion 2422 extending along a second direction Y. One end of the first electrode portion 2421 away from the second electrode portion 2422 is electrically connected to the second main electrode 232.

[0078] Similarly, this application embodiment still uses the example of connecting f branch electrodes 24 electrically to the second main electrode 232, but this application is not limited to this. The number of branch electrodes 24 electrically connected to the second main electrode 232 in this application may also be different from the number of branch electrodes 24 electrically connected to the first main electrode 231. For example Figure 4 As shown, three branch electrodes 24 are also electrically connected to the second main electrode 232. The second main electrode 232 is divided into four equal segments, each segment having a length of b. That is, the second main electrode 232 is divided into four equal parts, resulting in three equal division points on the second main electrode 232.

[0079] The length of the first electrode portion 2411 of the sub-electrode 241 connected to the first main electrode 231 is less than b, such that there is a gap Gap between the branch electrode 24 connected to the first main electrode 231 and the branch electrode 24 connected to the second main electrode 232, so as to ensure the continuity of the cathode pattern 21 conduction. Figure 4 As exemplarily shown, there is a gap between the first branch electrode 24 connected to the first main electrode 231 and the first branch electrode 24 connected to the second main electrode 232.

[0080] Optionally, among the branch electrodes 24 electrically connected to the first main electrode 231, the length of the first electrode portion 2411 of the sub-electrode 241 closest to the first main electrode 231 is less than b, that is, the length of the first electrode portion 2411 of the sub-electrode 241 directly connected to the first main electrode 231 is less than b; while the length of the first electrode portion 2411 of the other sub-electrodes 241 not directly connected to the first main electrode 231 can be equal to b.

[0081] It is understood that, in order to create a gap between the branch electrodes 24 electrically connected to the second main electrode 232, the length of the second electrode portion 2422 of each branch electrode 24 is less than b. However, to increase the gap between the branch electrodes 24 on the first main electrode 231 and the branch electrodes 24 on the second main electrode 232, the length of the first electrode portion 2421 on the sub-electrode 242 directly connected to the second main electrode 232 is less than a, while the length of the first electrode portion 2421 on other sub-electrodes 242 not directly connected to the second main electrode 232 can be equal to a.

[0082] Further optionally, among the plurality of branch electrodes 24 electrically connected to the second main electrode 232, the first electrode portion 2421 of the first sub-electrode 242 of each branch electrode 24 is electrically connected to the second main electrode 232 at an equal division point, wherein the first sub-electrode 242 is the sub-electrode 242 that is close to the second main electrode 232 in the first direction X.

[0083] The arrangement of the branch electrodes 24 within each quadrant will be described in detail below. (Continue referring to...) Figure 4 In each quadrant region, the first main electrode 231 is connected to f branch electrodes 24. In the direction along the first main electrode 231 away from the second main electrode 232, the number of sub-electrodes 241 of the nth branch electrode 24 is less than the number of sub-electrodes 241 of the mth branch electrode 24, where f ≥ m > n ≥ 1, and f, m, and n are all positive integers.

[0084] Specifically, such as Figure 4 As shown, three branch electrodes 24 are connected to the first main electrode 231. In the direction along the first main electrode 231 away from the second main electrode 232, the first branch electrode 24 has one sub-electrode 241, the second branch electrode 24 has two sub-electrodes 241, and the third branch electrode 24 has three sub-electrodes 241. Thus, the number of sub-electrodes 241 of the first branch electrode 24 is less than the number of sub-electrodes 241 of the latter two branch electrodes 24. That is, in the direction along the first main electrode 231 away from the second main electrode 232, among the multiple branch electrodes 24 connected to the first main electrode 231, the number of sub-electrodes 241 of the branch electrode 24 closer to the second main electrode 232 is less than the number of sub-electrodes 241 of the branch electrode 24 farther from the second main electrode 232.

[0085] Furthermore, the number of sub-electrodes 241 of the nth branch electrode 24 is p fewer than the number of sub-electrodes 241 of the mth branch electrode 24, where m = n + 1, p ≥ 1, and p is a positive integer. Thus, along the direction from the second main electrode 232 away from the first main electrode 231, among the multiple branch electrodes 24 connected to the first main electrode 231, the number of sub-electrodes 241 of the branch electrode 24 gradually increases as the distance between the branch electrode 24 and the second main electrode 232 gradually increases. For example... Figure 4 As shown, among the plurality of branch electrodes 24 electrically connected to the first main electrode 231, the second branch electrode 24 has one more sub-electrode 241 than the first branch electrode 24, and the third branch electrode 24 has one more sub-electrode 241 than the second branch electrode 24.

[0086] In one embodiment, within each quadrant region, the branch electrodes 24 on the first main electrode 231 and the branch electrodes 24 on the second main electrode 232 are axially symmetrical, such that the arrangement of the branch electrodes 24 on the second main electrode 232 is the same as that on the first main electrode 231. Figure 4 As shown, the branch electrodes 24 on the first main electrode 231 and the branch electrodes 24 on the second main electrode 232 are axially symmetrical about the bisector OO' of the first quadrant D1, such that the arrangement of the branch electrodes 24 on the second main electrode 232 is the same as that on the first main electrode 231. Therefore, the arrangement of the branch electrodes 24 on the second main electrode 232 will not be described again here. The bisector of the first quadrant D1 refers to a virtual line that bisects the first quadrant D1.

[0087] Thus, within the first quadrant region D1, the branch electrodes 24 on the first main electrode 231 and the branch electrodes 24 on the second main electrode 232 are arranged according to a certain pattern to minimize the average distance from each point on the touch unit 22 to the first bridging point 230 and the average distance from each point on the cathode pattern 21 to the second bridging point 210, thereby optimizing the wiring design within the first quadrant region D1 and avoiding wire wrapping.

[0088] The specific arrangement of the main electrode 23 and branch electrode 24 of the touch unit 22 will be further explained below in conjunction with the specific pixel arrangement.

[0089] Reference Figure 4 and Figure 5Taking a pixel arrangement in one quadrant as an example, the driving substrate is provided with an array of multiple sub-pixels, each sub-pixel corresponding to one light-emitting unit 30, and there are gaps between adjacent sub-pixels. The multiple sub-pixels may include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, wherein the red sub-pixel R and the blue sub-pixel B are located within the space enclosed by four green sub-pixels G. The touch unit 22 is disposed within the gaps between the sub-pixels. The first main electrode 231, the second main electrode 232, and each branch electrode 24 surround the sub-pixel, and the extension directions of the main electrode portion and the branch electrode portion surrounding the green sub-pixel G are consistent with the arrangement direction of the green sub-pixel G. The first main electrode 231 extends entirely along the first direction X, and the second main electrode 232 extends entirely along the second direction Y.

[0090] There are gaps between the branch electrodes 24 on the first main electrode 231. Each branch electrode 24 includes at least one sub-electrode 241, and the number of sub-electrodes 241 of the branch electrode 24 increases as the distance between the branch electrode 24 and the second main electrode 232 increases. There are also gaps between the branch electrodes 24 on the second main electrode 232. Each branch electrode 24 includes at least one sub-electrode 242, and the number of sub-electrodes 242 of the branch electrode 24 increases as the distance between the branch electrode 24 and the first main electrode 231 increases. Furthermore, there are also gaps between the branch electrodes 24 on the first main electrode 231 and the branch electrodes 24 on the second main electrode 232.

[0091] It should be noted that the number of branch electrodes 24 and the number of sub-electrodes 241 of each branch electrode 24 in each quadrant region can be adjusted according to the sub-pixels in the corresponding quadrant region. That is, the arrangement of the branch electrodes 24 in each quadrant region is adjusted with the arrangement of the sub-pixels, but the arrangement pattern of the branch electrodes 24 is the same.

[0092] In one embodiment, in any two adjacent quadrants, the branch electrode 24 in one quadrant and the branch electrode 24 in the other quadrant are axially symmetrical about their corresponding main electrodes. This makes the arrangement of the branch electrodes 24 in each quadrant the same. For example, the branch electrodes 24 in the second quadrant D2, the third quadrant D3, and the fourth quadrant D4 are arranged in the same way as the branch electrodes 24 in the first quadrant D1. This minimizes the average distance from each point on the touch unit 22 in each quadrant to the first bridging point 230, and minimizes the average distance from each point on the cathode pattern 21 to the corresponding second bridging point 210, thereby optimizing the wiring design of the entire display panel 100 and avoiding wire entanglement.

[0093] In one embodiment, please refer to the reference. Figures 1 to 8 , Figure 6 This is a top view schematic diagram of another display panel structure provided in an embodiment of this application. Figure 7 for Figure 6 A detailed structural diagram of a touch unit. Figure 8 for Figure 7 A detailed structural diagram of the first quadrant region. Unlike the previous embodiment, in this embodiment, the touch units 22 are arrayed on the driving substrate 10 in the display panel 101. Each touch unit 22 is quadrilateral, and the arrangement of the branch electrodes 24 in each quadrant of each touch unit 22 differs from the previous embodiment. This results in adjacent touch units 22 having vertices facing each other in the first direction X; and adjacent touch units 22 also having vertices facing each other in the second direction Y. Figure 6 As shown. It can be understood that for display panels of different shapes, the touch unit 22 needs to adapt to the shape of the display panel; therefore, there may be instances where the touch unit 22 at the edge of the display panel is incomplete, such as... Figure 6 As shown, an incomplete touch unit 22 is provided at the edge of the display panel 101.

[0094] Specifically, in conjunction with reference Figure 7 and Figure 8 The touch unit 22 is divided into four quadrants by the first main electrode 231 and the second main electrode 232, such as Figure 7 The diagram shows the first quadrant region D1, the second quadrant region D2, the third quadrant region D3, and the fourth quadrant region D4. This embodiment also uses the first quadrant region D1 as an example to illustrate the arrangement of the branch electrodes 24 within the touch unit 22.

[0095] Reference Figure 8 Within each quadrant region, the first main electrode 231 is connected to f branch electrodes 24. The first main electrode 231 is divided into f+1 equal parts, each segment having a length of 'a'. The first main electrode 231 has f division points. Each branch electrode 24 is electrically connected to the first main electrode 231 at one of the division points. The length of the second electrode portion 2412 is less than 'a', where f ≥ 1, a > 0, and f is a positive integer. The second main electrode 232 is divided into f+1 equal parts, each segment having a length of 'b'. The length of the first electrode portion 2411 of the sub-electrode 241 connected to the first main electrode 231 is less than 'b', where b > 0.

[0096] Specifically, continue to refer to Figure 8 Taking the first main electrode 231 electrically connected to five branch electrodes 24 as an example, the first main electrode 231 is divided into six equal segments, each segment having a length of 'a', meaning the first main electrode 231 is divided into six equal parts, resulting in five equal division points on the first main electrode 231. The first electrode portion 2411 of the first sub-electrode 241 in each branch electrode 24 is electrically connected to the first main electrode 231 at the division points, wherein the first sub-electrode 241 is the sub-electrode 241 located closer to the first main electrode 231 in the second direction Y. The second main electrode 232 is divided into six equal segments, each segment having a length of 'b', meaning the second main electrode 232 is divided into six equal parts, resulting in five equal division points on the second main electrode 232.

[0097] Along the first direction X, the length of the second electrode portion 2412 of each of the sub-electrodes 241 electrically connected to the first main electrode 231 is less than a, such that there is a gap Gap between any two adjacent branch electrodes 24, thereby ensuring the continuity of the cathode pattern 21 and forming a continuous cathode pattern 21. Optionally, the length of the second electrode portion 2412 of each of the sub-electrodes 241 is the same. The length of the first electrode portion 2411 of the sub-electrodes 241 connected to the first main electrode 231 is less than b, such that there is a gap Gap between the branch electrodes 24 connected to the first main electrode 231 and the branch electrodes 24 connected to the second main electrode 232, thereby ensuring the continuity of the cathode pattern 21.

[0098] Optionally, among the branch electrodes 24 electrically connected to the first main electrode 231, the length of the first electrode portion 2411 of the sub-electrode 241 closest to the first main electrode 231 is less than b, that is, the length of the first electrode portion 2411 of the sub-electrode 241 directly connected to the first main electrode 231 is less than b; while the length of the first electrode portion 2411 of the other sub-electrodes 241 not directly connected to the first main electrode 231 can be equal to b.

[0099] In one embodiment, within each quadrant region, in the direction along the first main electrode 231 away from the second main electrode 232, the number of sub-electrodes 241 of the nth branch electrode 24 electrically connected to the first main electrode 231 is less than the number of sub-electrodes 241 of the mth branch electrode 24, and the number of sub-electrodes 241 of the sth branch electrode 24 is also less than the number of sub-electrodes 241 of the mth branch electrode 24, where f ≥ s > m > n ≥ 1, and f, s, m, and n are all positive integers. Optionally, when f is odd, m = (f + 1) / 2; when f is even, m = f / 2 or m = (f + 1) / 2.

[0100] Specifically, continue to refer to Figure 8 The first main electrode 231 is connected to five branch electrodes 24. In the direction along the first main electrode 231 away from the second main electrode 232, the first branch electrode 24 has one sub-electrode 241, the second branch electrode 24 has two sub-electrodes 241, the third branch electrode 24 has three sub-electrodes 241, the fourth branch electrode 24 has two sub-electrodes 241, and the fifth branch electrode 24 has one sub-electrode 241. Thus, the number of sub-electrodes 241 in the first branch electrode 24 is less than the number of sub-electrodes 241 in the following two branch electrodes 24, and the number of sub-electrodes 241 in the fifth branch electrode 24 is less than the number of sub-electrodes 241 in the preceding two branch electrodes 24. That is, along the direction away from the second main electrode 232 from the first main electrode 231, the number of sub-electrodes 241 of the multiple branch electrodes 24 connected to the first main electrode 231 increases and then decreases.

[0101] Furthermore, the number of sub-electrodes 241 of the nth branch electrode 24 is p fewer than the number of sub-electrodes 241 of the (n+1)th branch electrode 24, and the number of sub-electrodes 241 of the sth branch electrode 24 is p fewer than the number of sub-electrodes 241 of the (s-1)th branch electrode 24, where m ≥ n+1, m ≤ s-1, p ≥ 1, and p is a positive integer. Thus, along the direction from the first main electrode 231 away from the second main electrode 232, among the multiple branch electrodes 24 connected to the first main electrode 231, as the distance between the branch electrode 24 and the second main electrode 232 gradually increases, the number of sub-electrodes 241 of the branch electrode 24 first gradually increases, and then gradually decreases. For example... Figure 8 As shown, among the plurality of branch electrodes 24 electrically connected to the first main electrode 231, the second branch electrode 24 has one more sub-electrode 241 than the first branch electrode 24, the third branch electrode 24 has one more sub-electrode 241 than the second branch electrode 24, the fourth branch electrode 24 has one less sub-electrode 241 than the third branch electrode 24, and the fifth branch electrode 24 has one less sub-electrode 241 than the fourth branch electrode 24.

[0102] In one embodiment, within each quadrant region, the branch electrodes 24 on the first main electrode 231 and the branch electrodes 24 on the second main electrode 232 are axially symmetrical, such that the arrangement of the branch electrodes 24 on the second main electrode 232 is the same as that on the first main electrode 231. Figure 8 As shown, the branch electrode 24 on the first main electrode 231 and the branch electrode 24 on the second main electrode 232 are axially symmetrical about the bisector OO' of the first quadrant region D1, so that the arrangement of the branch electrode 24 on the second main electrode 232 is the same as that on the first main electrode 231. The arrangement of the branch electrode 24 on the second main electrode 232 will not be described again here.

[0103] Thus, within the first quadrant region D1, the branch electrodes 24 on the first main electrode 231 and the branch electrodes 24 on the second main electrode 232 are arranged according to a certain pattern to minimize the average distance from each point on the touch unit 22 to the first bridging point 230 and the average distance from each point on the cathode pattern 21 to the second bridging point 210, thereby optimizing the wiring design within the first quadrant region D1 and avoiding wire wrapping.

[0104] In one embodiment, in any two adjacent quadrants, the branch electrode 24 in one quadrant is symmetrical to the branch electrode 24 in the other quadrant. This makes the arrangement of the branch electrodes 24 in each quadrant the same. For example, the branch electrodes 24 in the second quadrant D2, the third quadrant D3, and the fourth quadrant D4 are arranged in the same way as the branch electrodes 24 in the first quadrant D1. This minimizes the average distance from each point on the touch unit 22 in each quadrant to the first bridging point 230, and minimizes the average distance from each point on the cathode pattern 21 to the corresponding second bridging point 210. This optimizes the wiring design of the entire display panel 101 and avoids wire entanglement. In addition, the regular arrangement of the branch electrodes 24 in the touch unit 22 of this embodiment can make the arrangement of each touch unit 22 more compact, thereby making the pixel arrangement of the display panel 101 more compact, avoiding excessive gaps between pixels, and thus improving the pixel density of the display panel 101.

[0105] In one embodiment, please refer to the reference. Figures 1 to 10 , Figure 9 This is another top view schematic diagram of the display panel provided in this application embodiment. Unlike the above embodiments, in the display panel 102 of this embodiment, the second bridge point 210 further includes a second sub-bridge point 212. The second sub-bridge point 212 is located between two adjacent first sub-bridge points 211, and the distances from the second sub-bridge point 212 to the two adjacent first sub-bridge points 211 are equal. By setting the second sub-bridge point 212, it is equivalent to increasing the conduction channel between the cathode pattern 21 and the first signal line 50, which can further reduce the voltage drop of the cathode pattern 21, thereby further improving the uniformity of the display on the display panel 102. Other descriptions are as described in the above embodiments and will not be repeated here.

[0106] In one embodiment, please refer to the reference. Figures 1 to 10 , Figure 10This is another top view schematic diagram of the display panel provided in this application embodiment. Unlike the above embodiment, in the display panel 103 of this embodiment, the second bridging point 210 further includes a third sub-bridging point 213, which is located between adjacent first sub-bridging points 211 and second sub-bridging points 212. Each set of four adjacent third sub-bridging points 213 surrounds one first sub-bridging point 211, with the first sub-bridging point 211 as the center of symmetry. By setting the third sub-bridging point 213, the conduction channel between the cathode pattern 21 and the first signal line 50 is further increased, which can further reduce the voltage drop of the cathode pattern 21, thereby further improving the uniformity of the display on the display panel 103.

[0107] In addition, each touch unit 22 is provided with a plurality of third bridge points 2311. These third bridge points 2311 are located on the first main electrode 231 and / or the second main electrode 232, and the distance from each third bridge point 2311 to its corresponding first bridge point 230 is equal. Every four adjacent third bridge points 2311 surround one first bridge point 230, with the first bridge point 230 as the center of symmetry. By setting the third bridge points 2311, the conduction channel between the touch unit 22 and the second signal line 60 is effectively increased, thereby providing stability for signal transmission between the touch unit 22 and the second signal line 60. Other descriptions are provided in the above embodiment and will not be repeated here.

[0108] Based on the same inventive concept, this application also provides an electronic device, which includes a display panel from one of the foregoing embodiments. The electronic device includes electronic display devices such as mobile phones, tablets, computers, and televisions.

[0109] As can be seen from the above embodiments:

[0110] This application provides a display panel and an electronic device. The display panel includes a driving substrate and a plurality of light-emitting units disposed on the driving substrate. A first electrode layer is disposed on one side of the driving substrate where the plurality of light-emitting units are disposed. The first electrode layer includes a cathode pattern and a plurality of touch units arranged in an array. The cathode pattern and the touch units are insulated from each other. This application simultaneously forms the cathode pattern and the touch units on the first electrode layer, so that the touch units are disposed on the same layer as the cathode pattern. This eliminates the need to fabricate a separate touch layer, reducing the thickness of the display panel and thus solving the problem of the excessive thickness of existing touch display devices.

[0111] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0112] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display panel, characterized in that, include: Drive substrate; Multiple light-emitting units are disposed on the driving substrate; The driving substrate has a first electrode layer on one side of the light-emitting unit. The first electrode layer includes a cathode pattern and a plurality of touch units arranged in an array. The cathode pattern and the touch units are insulated from each other. The plurality of light-emitting units include the cathode pattern. The cathode pattern includes a plurality of openings. The touch units are located in the openings. The touch units include a main electrode and branch electrodes electrically connected to the main electrode. The main electrode includes a first main electrode extending along a first direction and a second main electrode extending along a second direction. The display panel includes multiple touch areas arranged in an array, and a touch unit is located in one of the touch areas. The first main electrode and the second main electrode intersect to divide the touch area into four quadrants. Each quadrant region is provided with a plurality of branch electrodes, and there is a gap between any two adjacent branch electrodes. In each quadrant region, at least one branch electrode is connected to the first main electrode. Each branch electrode includes at least one sub-electrode. Each sub-electrode includes a first electrode portion and a second electrode portion connected in series. There is an included angle between the first electrode portion and the second electrode portion, and the end of the first electrode portion away from the second electrode portion is electrically connected to the first main electrode.

2. The display panel according to claim 1, characterized in that, When the branch electrode includes k sub-electrodes, the k sub-electrodes are sequentially connected and arranged along the second direction, where k ≥ 2 and k is a positive integer; In the k sub-electrodes, the first electrode portion of the e-th sub-electrode is connected in series with the first electrode portion of the (e+1)-th sub-electrode, where e≥1, k≥e+1, and e is a positive integer.

3. The display panel according to claim 2, characterized in that, The first electrode portion extends along the second direction, and the second electrode portion extends along the first direction.

4. The display panel according to claim 2, characterized in that, Within each quadrant region, the first main electrode is connected to f branch electrodes. The first main electrode is divided into f+1 equal parts, each segment having a length of a. The first main electrode has f division points. Each branch electrode is electrically connected to the first main electrode at one of the division points. The length of the second electrode portion is less than a, where f ≥ 1, a > 0, and f is a positive integer. Within each quadrant region, the length of each segment of the second main electrode after being divided into f+1 equal parts is b, and the length of the first electrode portion of the sub-electrode connected to the first main electrode is less than b, where b > 0.

5. The display panel according to claim 2, characterized in that, Within each quadrant region, the first main electrode is connected to f branch electrodes. In the direction away from the second main electrode along the first main electrode, the number of sub-electrodes of the nth branch electrode is less than the number of sub-electrodes of the mth branch electrode, where f ≥ m > n ≥ 1, and f, m, and n are all positive integers; the number of sub-electrodes of the nth branch electrode is p fewer than the number of sub-electrodes of the mth branch electrode, where m = n + 1, p ≥ 1, and p is a positive integer.

6. The display panel according to claim 2, characterized in that, Within each quadrant region, the first main electrode is connected to f branch electrodes. Along the direction from the first main electrode away from the second main electrode, the number of sub-electrodes of the nth branch electrode is less than the number of sub-electrodes of the mth branch electrode, and the number of sub-electrodes of the sth branch electrode is also less than the number of sub-electrodes of the mth branch electrode, where f ≥ s > m > n ≥ 1, and f, s, m, and n are all positive integers. The number of sub-electrodes of the nth branch electrode is p fewer than the number of sub-electrodes of the (n+1)th branch electrode, and the number of sub-electrodes of the sth branch electrode is p fewer than the number of sub-electrodes of the (s-1)th branch electrode, where m≥n+1, m≤s-1, p≥1, and p is a positive integer.

7. The display panel according to claim 1, characterized in that, The driving substrate is provided with a plurality of sub-pixels arranged in an array, each sub-pixel corresponds to a light-emitting unit, there is a gap between adjacent sub-pixels, the touch unit is arranged corresponding to the gap, and the main electrode and the branch electrode surround the sub-pixel; The sub-pixel includes a green sub-pixel, and the extension direction of the main electrode portion and the branch electrode portion surrounding the green sub-pixel is consistent with the arrangement direction of the green sub-pixel.

8. The display panel according to any one of claims 1 to 7, characterized in that, In any two adjacent quadrants, the branch electrode in one quadrant is axially symmetric to the branch electrode in the other quadrant.

9. The display panel according to claim 8, characterized in that, Within each quadrant region, the branch electrodes on the first main electrode and the branch electrodes on the second main electrode form an axisymmetric pattern.

10. The display panel according to claim 1, characterized in that, The driving substrate includes a driving circuit and at least one first signal line and multiple second signal lines disposed on the same layer as a portion of the metal layer of the driving circuit. The cathode pattern is electrically connected to at least one first signal line, and each touch unit is electrically connected to a corresponding second signal line.

11. The display panel according to claim 10, characterized in that, The driving substrate further includes: A planarization layer covers the driving circuit, the planarization layer including an opening corresponding to the second signal line, the opening of the planarization layer exposing a portion of the second signal line; A pixel definition layer is overlaid on the planarization layer. The pixel definition layer includes an opening corresponding to the opening of the planarization layer. The opening of the pixel definition layer and the opening of the planarization layer form an undercut structure. The first electrode layer is located on the side of the pixel definition layer away from the planarization layer. The first electrode layer is broken at the undercut structure to form the cathode pattern and the touch unit. The touch unit extends into the opening of the pixel definition layer and the opening of the planarization layer and is electrically connected to the second signal line.

12. The display panel according to claim 11, characterized in that, There is a gap between the cathode pattern and the touch unit within the openings of the pixel definition layer and the planarization layer.

13. The display panel according to claim 10, characterized in that, Each of the touch units is provided with at least one first bridging point, and the touch unit is electrically connected to the corresponding second signal line through the first bridging point. The first bridging point is located at the intersection of the first main electrode and the second main electrode. The cathode pattern is provided with at least one second bridging point, and the cathode pattern is electrically connected to the first signal line through the second bridging point. Each second bridging point is located in the gap between two adjacent touch units.

14. The display panel according to claim 13, characterized in that, The second bridging point includes a first sub-bridging point, which is located within the gap formed by four adjacent touch units, and there is a first sub-bridging point between any four adjacent touch units.

15. The display panel according to claim 14, characterized in that, The second bridging point further includes a second sub-bridging point, which is located between two adjacent first sub-bridging points, and the distances from the second sub-bridging point to the two adjacent first sub-bridging points are equal.

16. The display panel according to claim 13, characterized in that, Each of the touch units is further provided with a plurality of third bridging points, which are located on the first main electrode and / or the second main electrode, and the distance from each third bridging point to the first bridging point is equal.

17. An electronic device, characterized in that, Includes the display panel as described in any one of claims 1 to 16.

Images