Display panel and display device

Abstract

The invention provides a display panel and a display device, a plurality of pixels in the display panel are arranged on one side of a substrate, the plurality of pixels are distributed on a display area at intervals, a suspension structure is arranged between every two adjacent pixels, and cathodes of the pixels are lapped on the suspension structures; the first wiring structure surrounds at least part of the display area, and the first wiring structure is used for receiving a cathode power supply signal; the multiple first connecting structures are distributed at intervals in the extending direction of the first wiring structure, and the first wiring structure is electrically connected with the suspension structure through the first connecting structures; a cathode power supply signal is accessed through the first wiring structure, and the cathode power supply signal is transmitted to the cathode of the pixel through the first connection structure and the suspension structure; the first connecting structure is directly connected with the overhanging structure and the first wiring structure, so that the transmission path of the cathode power supply signal of the pixel near the connecting area can be shortened, and the voltage drop of the cathode power supply signal of the pixel can be reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of display devices, and in particular, relates to a display panel and a display device. Background Art

[0002] Active-matrix organic light emitting diode (AMOLED) and flat panel display devices based on light emitting diode (LED) technologies have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0003] However, the performance of current AMOLED display products needs to be improved. Summary of the invention

[0004] The purpose of the present application is to provide a display panel and a display device, aiming to solve the problem of low performance of display products in traditional technologies.

[0005] A first aspect of an embodiment of the present application provides a display panel, wherein the display panel comprises:

[0006] substrate;

[0007] A plurality of pixels are arranged on one side of the substrate, the plurality of pixels are spaced apart on the display area, and an overhang structure is arranged between two adjacent pixels, and the cathode of the pixel is overlapped on the overhang structure;

[0008] A first wiring structure surrounds at least a portion of the display area, and the first wiring structure is used to receive a cathode power supply signal;

[0009] A plurality of first connection structures are distributed at intervals along an extension direction of the first wiring structure, and the first wiring structure is electrically connected to the overhanging structure through the first connection structure.

[0010] In some embodiments of the present application, in the thickness direction of the display panel, the first wiring structure is disposed on a side of the overhanging structure close to the substrate.

[0011] In some embodiments of the present application, the first wiring structure is arranged at the same layer as the anode of the pixel.

[0012] In some embodiments of the present application, the display panel further includes a pixel definition layer, at least a portion of the pixel definition layer is disposed between the first wiring structure and the overhanging structure, a first via hole is disposed on the pixel definition layer, at least a portion of the first connection structure is disposed in the first via hole, and is in contact with the first wiring structure and the overhanging structure, respectively;

[0013] Optionally, along the direction away from the substrate, the overhang structure includes a first film layer, a second film layer and a third film layer which are stacked, the orthographic projection of the second film layer on the substrate is located within the orthographic projection of the third film layer on the substrate, and the first connecting structure and the first film layer are an integral structure.

[0014] In some embodiments of the present application, in the thickness direction of the display panel, the first wiring structure is located on a side of the anode of the pixel close to the substrate;

[0015] Optionally, at least part of the first connection structure is arranged in the same layer as the anode.

[0016] In some embodiments of the present application, along the extension direction of the first wiring structure, the first wiring structure includes alternating first sub-segments and second sub-segments, the first sub-segments are arranged in the same layer as the anode of the pixel, and the second sub-segments are located on a side of the anode layer close to the substrate.

[0017] In some embodiments of the present application, the first wiring structure and the overhanging structure are arranged on the same layer;

[0018] Optionally, the first connecting structure and the overhanging structure are arranged at the same layer.

[0019] In some embodiments of the present application, the display panel further includes:

[0020] A first conductive structure, electrically connected to anodes of the plurality of pixels, and extending out of the display area;

[0021] A second wiring structure surrounds at least a portion of the display area, and the second wiring structure is used to receive an anode power supply signal;

[0022] A plurality of second connection structures are spaced apart and distributed along the extension direction of the second wiring structure, and the second wiring structure is electrically connected to a portion of the first connection structure extending out of the display area through the second connection structure.

[0023] In some embodiments of the present application, the second wiring structure and the overhanging structure are arranged on the same layer;

[0024] Optionally, the first conductive structure is provided on a side of the anode close to the substrate;

[0025] Optionally, the first conductive structure comprises a plurality of first conductive lines spaced apart along a column direction, and each of the first conductive lines extends out of the display area along a row direction;

[0026] Optionally, the plurality of second connection structures are electrically connected to the plurality of first conductive lines in a one-to-one correspondence.

[0027] In some embodiments of the present application, the first conductive structure further includes a plurality of second conductive lines spaced apart along the row direction, each of the second conductive lines extending along the column direction, and the first conductive lines are arranged to cross the second conductive lines;

[0028] Optionally, each of the second conductive lines extends out of the display area along a column direction, and an end of the second conductive line is electrically connected to the second wiring structure through the second connection structure;

[0029] Optionally, both ends of the first conductive line extend out of the display area, both ends of the second conductive line extend out of the display area, both ends of each first conductive line are electrically connected to the second routing structure through two second connection structures, and both ends of each second conductive line are electrically connected to the second routing structure through two second connection structures.

[0030] In some embodiments of the present application, the surrounding path of the first routing structure includes a plurality of corners, and the first connecting structure is disposed at at least one corner position on the surrounding path of the first routing structure.

[0031] In a second aspect, the present application further provides a display panel, the display panel comprising:

[0032] substrate;

[0033] A plurality of pixels are disposed on one side of the substrate, and the plurality of pixels are distributed at intervals on the display area;

[0034] A first conductive structure, electrically connected to anodes of the plurality of pixels, and extending out of the display area;

[0035] A second wiring structure surrounds at least a portion of the display area, and the second wiring structure is used to receive an anode power supply signal;

[0036] A plurality of second connection structures are spaced apart and distributed along the extension direction of the second wiring structure, and the second wiring structure is electrically connected to a portion of the first connection structure extending out of the display area through the second connection structure.

[0037] In some embodiments of the present application, a suspension structure is provided between two adjacent pixels, the cathode of the pixel is overlapped on the suspension structure, and the second wiring structure is provided on the same layer as the suspension structure.

[0038] In some embodiments of the present application, the display panel further includes:

[0039] a first wiring structure surrounding at least a portion of the display area, the first wiring structure being used to receive a cathode power supply signal; an orthographic projection of the first wiring structure on the substrate and an orthographic projection of the second wiring structure on the substrate being arranged at an interval;

[0040] A plurality of first connection structures are distributed at intervals along an extension direction of the first wiring structure, and the first wiring structure is electrically connected to the overhanging structure through the first connection structure.

[0041] In a third aspect, the present application also provides a display device, which includes the above-mentioned display panel.

[0042] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: the above-mentioned display panel and display device, the display panel includes a substrate, a plurality of pixels, a first wiring structure and a plurality of first connection structures; the plurality of pixels are arranged on one side of the substrate, the plurality of pixels are spaced apart on the display area, and a suspension structure is arranged between two adjacent pixels, and the cathode of the pixel is overlapped on the suspension structure; the first wiring structure surrounds at least part of the display area, and the first wiring structure is used to receive a cathode power supply signal; the plurality of first connection structures are spaced apart along the extension direction of the first wiring structure, and the first wiring structure is electrically connected to the suspension structure through the first connection structure; the present application accesses the cathode power supply signal through the first wiring structure, and transmits the cathode power supply signal to the cathode of the pixel through the first connection structure and the suspension structure; by setting the first connection structure to directly connect the suspension structure and the first wiring structure, it is beneficial to shorten the transmission path of the cathode power supply signal of the pixel near the connection area, and further beneficial to reduce the voltage drop of the cathode power supply signal of the pixel. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A top view of a display panel provided in an embodiment of the present application;

[0044] Figure 2 A partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0045] Figure 3 A partial cross-sectional view of a display panel provided in another embodiment of the present application;

[0046] Figure 4 A partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0047] Figure 5 A partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0048] Figure 6 A partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0049] Figure 7 A partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0050] Figure 8 A partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0051] Fig. 9 A partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0052] Fig.10 A top view of a display panel provided in another embodiment of the present application;

[0053] Fig.11 A top view of a display panel provided in yet another embodiment of the present application;

[0054] Fig.12 A top view of a display panel provided in yet another embodiment of the present application;

[0055] Fig.13 A top view of a display panel provided in yet another embodiment of the present application.

[0056] Specific element symbol description: 100-substrate, 200-first wiring structure, 210-first sub-segment, 220-second sub-segment, 230-third sub-segment, 240-fourth sub-segment, 300-pixel, 310-anode, 320-cathode, 330-display area, 340-light-emitting layer, 350-first packaging layer, 400-overhang structure, 410-first film layer, 420-second film layer, 430-third film layer, 500-first connection structure, 510-pixel definition layer, 520-first via, 600-frame, 700-driving signal line, 800-second packaging layer, 900-third packaging layer, 1100-first conductive structure, 1110-first conductive line, 1120-second conductive line, 1200-second wiring structure, 1300-second connection structure, a-thickness direction. DETAILED DESCRIPTION

[0057] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0058] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0059] It should be understood that the terms "length", "width", "up", "down", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0060] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0061] It is important to know that with the continuous advancement of display technology, organic light-emitting diode (OLED) display technology has been widely used in high-end display fields such as smartphones, tablets, TVs and wearable devices due to its advantages such as excellent color performance, wide viewing angle, fast response and thin and light design.

[0062] In the current pixel structure of OLED displays, the cathode signal line is a key part of transmitting current, and its layout is often limited by factors such as pixel arrangement density, screen size and resolution. As screen size continues to increase and resolution continues to improve, the cathode signal line inevitably needs to be designed to be longer to cover the entire display area. This long signal transmission path leads to a significant resistance voltage drop problem.

[0063] The resistance voltage drop on the cathode signal line will not only affect the uniform distribution of current, resulting in uneven screen brightness, but also increase energy consumption and reduce display efficiency. Especially when displaying high brightness or dynamic images, the voltage drop problem is particularly prominent due to the increased current demand, which seriously affects the display effect and user experience of the OLED display.

[0064] Based on this, the present application improves the related display panel and display device.

[0065] See also Figure 1 , Figure 1 FIG. 1 shows a schematic diagram of a top view of the structure of a display panel provided in this embodiment. Figure 2The partial cross-sectional view of the display panel provided by the present embodiment is shown. The present embodiment includes a substrate 100, a plurality of pixels 300, a first wiring structure 200 and a plurality of first connection structures 500; the plurality of pixels 300 are arranged on one side of the substrate 100, the plurality of pixels 300 are spaced apart on the display area 330, and a suspension structure 400 is arranged between two adjacent pixels 300, and the cathode 320 of the pixel 300 is overlapped on the suspension structure 400; the first wiring structure 200 surrounds at least part of the display area 330, and the first wiring structure 200 is used to receive a cathode power supply signal; the plurality of first connection structures 500 are spaced apart along the extension direction of the first wiring structure 200, and the first wiring structure 200 is electrically connected to the suspension structure 400 through the first connection structure 500.

[0066] It should be explained that the multiple pixels 300 are the basic units constituting the display screen, and they are spaced apart on the surface of the display area 330. Each pixel 300 includes a light-emitting element (such as an organic light-emitting diode in an OLED), and the light-emitting performance of these elements determines the color and brightness of the pixel 300.

[0067] The overhang structure 400 is arranged between two adjacent pixels 300, and mainly serves to isolate different pixels 300. The cathode 320 of the pixel 300 in this embodiment is also connected to these overhang structures 400, thereby realizing the transmission of the cathode power supply signal of the pixel 300. This design helps to simplify the wiring between pixels 300 and improve the pixel 300 density and display resolution. The composition, preparation and other contents of the overhang structure 400 are described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, CN 117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A for reference.

[0068] The first wiring structure 200 surrounds at least a portion of the display area 330 and is used to receive a cathode power signal. This layout allows multiple pixels 300 to be connected to the first wiring structure 200 around the display area 330 to reduce the voltage drop of the cathode power signal.

[0069] In the current display panel, it is necessary to set up a wiring structure on the entire surface, and the signal path from the wiring structure to the cathode 320 of the pixel 300 is long, and there is a large voltage drop. However, the present application accesses the cathode power signal through the first wiring structure 200, and transmits the cathode power signal to the cathode 320 of the pixel 300 through the first connection structure 500 and the overhang structure 400; by setting the first connection structure 500 to directly connect the overhang structure 400 and the first wiring structure 200, it is helpful to shorten the transmission path of the cathode power signal of the pixel 300 near the connection area, thereby helping to reduce the voltage drop of the cathode power signal of the pixel 300.

[0070] For some embodiments of this application, please continue to refer to Figure 2 In this embodiment, in the thickness direction a of the display panel, the first wiring structure 200 is disposed on the side of the overhang structure 400 close to the substrate 100. The first wiring structure 200 is disposed on the side of the overhang structure 400 close to the substrate 100, and it serves as an electrical connection bridge to transmit the power signal to each pixel 300.

[0071] In some other embodiments, the first wiring structure 200 may also be disposed on a side of the overhanging structure 400 facing away from the substrate 100 .

[0072] For some embodiments of this application, please continue to refer to Figure 2 In this embodiment, the first wiring structure 200 and the anode 310 of the pixel 300 are arranged on the same layer.

[0073] In some embodiments, the anode 310 of the pixel 300 may include metal oxide, metal or a multi-layer material composite. Exemplarily, the anode 310 is ITO / Ag / ITO, and the pixel 300 circuit supplies power to the anode 310 for display control.

[0074] In other embodiments, see Figure 3 , Figure 3 1 shows a schematic diagram of the structure of the display panel provided in this embodiment. In this embodiment, the first wiring structure 200 can also be arranged on the side of the anode 310 of the pixel 300 close to the substrate 100. In other words, the first wiring structure 200 is not arranged on the same layer as the anode 310, but is arranged on the same layer as the metal layer below the anode 310.

[0075] In some other embodiments, a portion of the first wiring structure 200 is disposed in the same layer as the anode 310, and a portion is disposed on a side of the anode 310 close to the substrate 100. Specifically, the first wiring structure 200 can be alternately routed in the layer where the anode 310 is located and the layer where the anode 310 is close to the substrate 100. Alternatively, the first wiring structure 200 is overlapped in the layer where the anode 310 is located and the layer where the anode 310 is close to the substrate 100, and the two portions are arranged in parallel, which is beneficial to reducing the resistance of the first wiring structure 200.

[0076] In some embodiments of this application, please refer to Figure 4 , Figure 4 A schematic diagram of the structure of the display panel provided in the present embodiment is shown; the display panel in the present embodiment further includes a pixel definition layer 510, at least a portion of the pixel definition layer 510 is arranged between the first wiring structure 200 and the overhang structure 400, a first via hole 520 is arranged on the pixel definition layer 510, at least a portion of the first connection structure 500 is arranged in the first via hole 520, and contacts the first wiring structure 200 and the overhang structure 400 respectively.

[0077] It should be explained that the pixel definition layer 510 is mainly used to define the boundary of each pixel 300, ensure electrical isolation and optical isolation between pixels 300, and provide necessary support and connection structures. The first via 520 allows the first connection structure 500 to pass through, so that the current or signal is transmitted from the first wiring structure 200 to the overhang structure 400, thereby realizing the transmission of the cathode power supply signal.

[0078] In some embodiments, see Figure 5 , Figure 5 The structure diagram of the display panel provided by the present embodiment is shown. A driving signal line 700 is arranged in the display panel of the present embodiment, and the first via hole 520 and the driving signal line 700 are staggered in the thickness direction a of the display panel; this helps to reduce the signal interference between the driving signal line 700 and the cathode 320 signal path. The driving signal line 700 can be electrically connected to the gate driving circuit.

[0079] In some embodiments, the pixel definition layer 510 is made of an insulating material, and the insulating material is preferably Si-based inorganic materials, such as SiO, SiN and other inorganic materials; it has a protective effect on the anode 310 to prevent the anode 310 from being oxidized.

[0080] In some embodiments, please refer to Figure 5In this embodiment, along the direction away from the substrate 100, the overhang structure 400 includes a first film layer 410, a second film layer 420 and a third film layer 430 which are stacked, the orthographic projection of the second film layer 420 on the substrate 100 is located within the orthographic projection of the third film layer 430 on the substrate 100, and the first connection structure 500 is an integral structure with the first film layer 410. The material of the first film layer 410 may include molybdenum, the material of the second film layer 420 may include aluminum, and the material of the third film layer 430 may include titanium.

[0081] For some embodiments of this application, please continue to refer to Figure 5 , at least part of the first connection structure 500 is arranged on the same layer as the anode 310 .

[0082] In some embodiments of this application, please refer to Figure 6 , Figure 6 The schematic diagram of the structure of the display panel provided by the present embodiment is shown. In the present embodiment, along the extension direction of the first wiring structure 200, the first wiring structure 200 includes first sub-segments 210 and second sub-segments 220 that are alternately arranged, the first sub-segments 210 and the anode 310 of the pixel 300 are arranged in the same layer, and the second sub-segment 220 is located on the side of the anode 310 layer close to the substrate 100.

[0083] In some embodiments, see Figure 7 , Figure 7 The schematic diagram of the structure of the display panel provided by the present embodiment is shown. In the present embodiment, the first wiring structure 200 comprises a third sub-segment 230 and a fourth sub-segment 240 which are arranged in an overlapping manner, and the third sub-segment 230 and the fourth sub-segment 240 are arranged in parallel.

[0084] That is to say, the cathode power supply signal can be transmitted not only through the layer where the anode 310 is located, but also through the structural layer on one side of the anode 310 to achieve double-sided signal transmission, which is conducive to improving the speed and efficiency of signal transmission. This is especially important for display panels that require high-speed data transmission. In addition, by providing redundant signal transmission paths, the double-sided signal transmission structure can reduce the risk of signal interruption caused by single path failure, thereby improving signal stability. At the same time, the double-sided signal transmission structure helps to achieve more uniform current distribution and lower resistance voltage drop, thereby improving the efficiency and stability of electrical connections.

[0085] In some embodiments of this application, please refer to Figure 8 , Figure 8A partial cross-sectional schematic diagram of the display panel provided in this embodiment is shown. When the first wiring structure 200 is connected to the cathode power signal, the cathode power signal flows along the first wiring structure 200, the first connection structure 500, and the overhang structure 400 to the cathode 320 of the pixel 300. The driving signal line 700 is located at the position of the frame 600, and the overhang structure 400 and the pixel 300 are in the display area 330.

[0086] In some embodiments, the pixel 300 may include an anode 310 , a light emitting layer 340 , a cathode 320 , and a first encapsulation layer 350 arranged sequentially from bottom to top.

[0087] In some embodiments, the light-emitting layer 340 is an EL (Electroluminescence) film layer, and the cathode 320 is made of materials such as MgAg alloy. The first encapsulation layer 350 is an encapsulation structure, which can isolate water vapor and protect the light-emitting layer 340. The first encapsulation layer 350 is preferably made of inorganic materials such as SiO and SiN. The first encapsulation layer 350 can be a CVD (Chemical Vapor Deposition) film layer; Fig. 9 In this embodiment, a second encapsulation layer 800 may be added on the CVD film layer. The second encapsulation layer 800 may be an IJP structure (Ink Jet Printing) to form a multi-layer material structure.

[0088] In some embodiments, see Fig. 9 , a third encapsulation layer 900 may be disposed on the second encapsulation layer 800 , and the third encapsulation layer 900 is a CVD film layer.

[0089] In some embodiments of this application, please refer to Fig.10 , Fig.10 A schematic diagram of the structure of the display panel provided by the present embodiment is shown; the display panel of the present embodiment also includes a first conductive structure 1100, a second wiring structure 1200 and a plurality of second connection structures 1300; the first conductive structure 1100 is electrically connected to the anodes 310 of a plurality of pixels 300, and the first conductive structure 1100 extends out of the display area 330; the second wiring structure 1200 surrounds at least a portion of the display area 330, and the second wiring structure 1200 is used to receive an anode power supply signal; the plurality of second connection structures 1300 are spaced apart and distributed along the extension direction of the second wiring structure 1200, and the second wiring structure 1200 is electrically connected to a portion of the first connection structure 500 extending out of the display area 330 through the second connection structure 1300.

[0090] In some embodiments, the first wiring structure 200 and the second wiring structure 1200 are disposed on two sides of the display area 330 .

[0091] In some embodiments, please refer to Fig.10 , the overhang structure 400 and the first connection structure 500 are disposed on the same layer. In some embodiments, the overhang structure 400 and the first routing structure 200 are disposed on the same layer.

[0092] For some embodiments of this application, please continue to refer to Fig.10 , the second wiring structure 1200 is arranged on the same layer as the overhanging structure 400;

[0093] In some embodiments, the first conductive structure 1100 is disposed on a side of the anode 310 close to the substrate 100 ;

[0094] In some embodiments, see Fig.11 , the first conductive structure 1100 of this embodiment includes a plurality of first conductive lines 1110 spaced apart along the column direction, and each first conductive line 1110 extends out of the display area 330 along the row direction;

[0095] In some embodiments, please refer to Fig.11 In this embodiment, the plurality of second connection structures 1300 are electrically connected to the plurality of first conductive lines 1110 in a one-to-one correspondence.

[0096] For some embodiments of this application, please continue to refer to Fig.11 , the first conductive structure 1100 of this embodiment further includes a plurality of second conductive lines 1120 spaced apart along the row direction, each second conductive line 1120 extends along the column direction, and the first conductive lines 1110 and the second conductive lines 1120 are arranged to cross each other;

[0097] In some embodiments, see Fig.12 , each second conductive line 1120 in this embodiment extends out of the display area 330 along the column direction, and the end of the second conductive line 1120 is electrically connected to the second wiring structure 1200 through the second connection structure 1300;

[0098] In some embodiments, please refer to Fig.12 In this embodiment, both ends of the first conductive line 1110 extend out of the display area 330, and both ends of the second conductive line 1120 extend out of the display area 330. Both ends of each first conductive line 1110 are electrically connected to the second wiring structure 1200 through two second connection structures 1300, and both ends of each second conductive line 1120 are electrically connected to the second wiring structure 1200 through two second connection structures 1300.

[0099] In some embodiments of this application, please refer to Fig.13 In this embodiment, the surrounding path of the first routing structure 200 includes a plurality of corners, and the first connecting structure 500 is disposed at at least one corner position on the surrounding path of the first routing structure 200 .

[0100] It should be explained that setting the first via 520 at the corner position of the surrounding path of the first routing structure 200 is beneficial to avoid the driving signal line 700 to reduce the signal interference between the driving signal line 700 and the first via 520; and on the other hand, it is also beneficial to reduce the size of the frame 600 of the display panel.

[0101] In an exemplary description, the display area 330 is a rectangular structure, and the first wiring structure 200 surrounds the display area 330 to form a rectangular ring structure. The first via 520 can be preferentially disposed on the corners (corners) of the rectangular ring structure.

[0102] In some embodiments of this application, please continue to refer to Fig.12 In this embodiment, there are multiple first via holes 520 , and the multiple first via holes 520 are arranged at intervals along the circumferential direction of the first routing structure 200 .

[0103] It should be explained that by arranging the first vias 520 at intervals along the circumferential direction of the first wiring structure 200, it is possible to ensure that the current is evenly distributed during the transmission process. This helps to reduce local overheating and the concentration of electrical stress, thereby enhancing the electrical stability of the display panel. Since the first vias 520 directly affect the luminous performance of the pixels 300, their layout has an important impact on the display performance. Multiple first vias 520 arranged at intervals can ensure that more pixels 300 can obtain a stable and uniform current supply, thereby improving the uniformity and color saturation of the display, which is conducive to achieving high-quality image display.

[0104] In some embodiments, different design requirements can be flexibly adapted by adjusting the number and spacing of the first vias 520. For example, for a pixel region where the voltage drop of the cathode power supply signal is large, the number of the first vias 520 can be increased or the spacing can be reduced in the pixel region; and for a pixel region where the voltage drop of the cathode power supply signal is small, the number of the first vias 520 can be reduced or the spacing can be increased accordingly.

[0105] Furthermore, in order to better implement the display panel in any of the above embodiments, based on the above display panel, the present application also provides a display device, which includes the above display panel.

[0106] In some embodiments, the display panel is an OLED display panel.

[0107] In some embodiments, the display device may be a mobile phone, a tablet, a computer, etc.

[0108] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0109] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0110] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0111] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0112] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel comprises: substrate; A plurality of pixels are arranged on one side of the substrate, the plurality of pixels are spaced apart on the display area, and an overhang structure is arranged between two adjacent pixels, and the cathode of the pixel is overlapped on the overhang structure; A first wiring structure surrounds at least a portion of the display area, and the first wiring structure is used to receive a cathode power supply signal; A plurality of first connection structures are distributed at intervals along an extension direction of the first wiring structure, and the first wiring structure is electrically connected to the overhanging structure through the first connection structure.

2. The display panel according to claim 1, characterized in that: In the thickness direction of the display panel, the first wiring structure is arranged on a side of the overhanging structure close to the substrate.

3. The display panel according to claim 2, characterized in that: The first wiring structure is arranged in the same layer as the anode of the pixel.

4. The display panel according to claim 3, characterized in that: The display panel further includes a pixel definition layer, at least a portion of the pixel definition layer is disposed between the first wiring structure and the overhanging structure, a first via hole is disposed on the pixel definition layer, at least a portion of the first connection structure is disposed in the first via hole, and is in contact with the first wiring structure and the overhanging structure respectively; Optionally, along the direction away from the substrate, the overhang structure includes a first film layer, a second film layer and a third film layer which are stacked, the orthographic projection of the second film layer on the substrate is located within the orthographic projection of the third film layer on the substrate, and the first connecting structure and the first film layer are an integral structure.

5. The display panel according to claim 2, characterized in that: In the thickness direction of the display panel, the first wiring structure is located on a side of the anode of the pixel close to the substrate; Optionally, at least part of the first connection structure is arranged in the same layer as the anode.

6. The display panel according to claim 2, characterized in that: Along the extension direction of the first wiring structure, the first wiring structure includes first sub-segments and second sub-segments that are alternately arranged, the first sub-segments are arranged in the same layer as the anode of the pixel, and the second sub-segments are located on a side of the anode layer close to the substrate.

7. The display panel according to claim 1, characterized in that: The first wiring structure and the overhanging structure are arranged on the same layer; Optionally, the first connecting structure and the overhanging structure are arranged at the same layer.

8. The display panel according to claim 1, characterized in that: The display panel further includes: A first conductive structure, electrically connected to anodes of the plurality of pixels, and extending out of the display area; A second wiring structure surrounds at least a portion of the display area, and the second wiring structure is used to receive an anode power supply signal; A plurality of second connection structures are spaced apart and distributed along the extension direction of the second wiring structure, and the second wiring structure is electrically connected to a portion of the first connection structure extending out of the display area through the second connection structure.

9. The display panel according to claim 8, characterized in that: The second wiring structure is arranged on the same layer as the overhanging structure; Optionally, the first conductive structure is provided on a side of the anode close to the substrate; Optionally, the first conductive structure comprises a plurality of first conductive lines spaced apart along a column direction, and each of the first conductive lines extends out of the display area along a row direction; Optionally, the plurality of second connection structures are electrically connected to the plurality of first conductive lines in a one-to-one correspondence.

10. The display panel according to claim 9, characterized in that: The first conductive structure further includes a plurality of second conductive lines spaced apart along the row direction, each of the second conductive lines extending along the column direction, and the first conductive lines are arranged to cross the second conductive lines; Optionally, each of the second conductive lines extends out of the display area along a column direction, and an end of the second conductive line is electrically connected to the second wiring structure through the second connection structure; Optionally, both ends of the first conductive line extend out of the display area, both ends of the second conductive line extend out of the display area, both ends of each first conductive line are electrically connected to the second routing structure through two second connection structures, and both ends of each second conductive line are electrically connected to the second routing structure through two second connection structures.

11. The display panel according to any one of claims 1 to 10, characterized in that: The surrounding path of the first routing structure includes a plurality of corners, and the first connecting structure is disposed at at least one corner position on the surrounding path of the first routing structure.

12. A display panel, characterized in that: The display panel comprises: substrate; A plurality of pixels are disposed on one side of the substrate, and the plurality of pixels are distributed at intervals on the display area; A first conductive structure, electrically connected to anodes of the plurality of pixels, and extending out of the display area; A second wiring structure surrounds at least a portion of the display area, and the second wiring structure is used to receive an anode power supply signal; A plurality of second connection structures are spaced apart and distributed along the extension direction of the second wiring structure, and the second wiring structure is electrically connected to a portion of the first connection structure extending out of the display area through the second connection structure.

13. The display panel according to claim 12, characterized in that: An overhang structure is arranged between two adjacent pixels, the cathode of the pixel is overlapped on the overhang structure, and the second wiring structure is arranged on the same layer as the overhang structure.

14. The display panel according to claim 13, characterized in that: The display panel further includes: a first wiring structure surrounding at least a portion of the display area, the first wiring structure being used to receive a cathode power supply signal; an orthographic projection of the first wiring structure on the substrate and an orthographic projection of the second wiring structure on the substrate being arranged at an interval; A plurality of first connection structures are distributed at intervals along an extension direction of the first wiring structure, and the first wiring structure is electrically connected to the overhanging structure through the first connection structure.

15. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 14.

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