Display panel and electronic equipment

Abstract

The embodiment of the invention provides a display panel and electronic equipment, and relates to the technical field of display, the display panel comprises a substrate, a conductive layer, an insulating layer, a pixel defining layer and a light emitting unit, and the conductive layer comprises conductive wires; a first via hole is formed in the insulating layer, the pixel defining layer comprises a plurality of pixel openings, the pixel openings comprise first pixel openings, the light-emitting unit comprises a first electrode, the first electrode is electrically connected with the conductive wire through the first via hole, the light-emitting unit comprises a first light-emitting unit, the first pixel opening comprises a first side wall and a second side wall which are located at different positions, and the first side wall is electrically connected with the second side wall through the first via hole. At least part of the first side wall protrudes in the direction away from the first pixel opening to form a first protruding edge, and the orthographic projection of the first via hole in the pixel defining layer is located on the side, away from the center of the first pixel opening, of the second side wall. The pixel aperture ratio of the first light-emitting units can be improved while the short-circuit risk of the first electrodes of the adjacent light-emitting units can be reduced, and therefore the performance of the display panel can be better improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and an electronic device. Background Art

[0002] Organic Light Emitting Diode (OLED) and flat panel display devices based on technologies such as Light Emitting Diode (LED) 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 panels.

[0003] However, there are still some problems with display panels that need to be solved urgently. Summary of the invention

[0004] In order to overcome the technical problems mentioned in the above technical background, an embodiment of the present application provides a display panel, wherein the display panel includes:

[0005] substrate;

[0006] A conductive layer, located on one side of the substrate, the conductive layer comprising conductive traces;

[0007] an insulating layer, located on a side of the conductive layer away from the substrate, and along a thickness direction of the display panel, the insulating layer is provided with a first via hole penetrating the insulating layer, the first via hole comprising a first via hole;

[0008] a pixel defining layer, located on a side of the insulating layer away from the substrate, the pixel defining layer comprising a plurality of pixel openings, the pixel openings comprising a first pixel opening, the first pixel opening comprising a first side wall and a second side wall located at different positions, at least a portion of the first side wall protruding in a direction away from the first pixel opening to form a first protruding edge;

[0009] A light-emitting unit is at least partially located in the pixel opening, the light-emitting unit includes a first electrode, the light-emitting unit includes a first light-emitting unit, the first light-emitting unit is located in the first pixel opening, the first electrode of the first light-emitting unit is electrically connected to the conductive trace through the first via hole, and the positive projection of the first via hole on the pixel defining layer is located on the side of the second side wall away from the center of the first pixel opening.

[0010] In some possible implementations, the present application further provides a display panel, comprising:

[0011] substrate;

[0012] A light-emitting unit, wherein the light-emitting unit includes a first electrode, and the light-emitting unit includes adjacent first and second light-emitting units, the first electrode of the first light-emitting unit includes a protrusion and a main body, the protrusion protrudes toward the second light-emitting unit, and the minimum distance between the edge of the orthographic projection of the protrusion on the substrate and the edge of the orthographic projection of the first electrode of the second light-emitting unit on the substrate is greater than or equal to the minimum distance between the edge of the orthographic projection of the main body on the substrate and the edge of the orthographic projection of the first electrode of the second light-emitting unit on the substrate.

[0013] In some possible implementations, the present application further provides a display panel, comprising:

[0014] substrate;

[0015] A conductive layer, located on one side of the substrate, the conductive layer comprising conductive traces;

[0016] an insulating layer, located on a side of the conductive layer away from the substrate, and along a thickness direction of the display panel, the insulating layer is provided with a first via hole penetrating the insulating layer, the first via hole comprising a first via hole;

[0017] an isolation structure, located at a side of the insulating layer away from the substrate, the isolation structure comprising a plurality of isolation openings, the isolation openings comprising a first isolation opening, the first isolation opening comprising a third sidewall and a fourth sidewall located at different positions, at least a portion of the third sidewall protrudes in a direction away from the first isolation opening to form a second protruding edge;

[0018] A light-emitting unit is at least partially located in the isolation opening, the light-emitting unit includes a first electrode, the light-emitting unit includes a first light-emitting unit, the first light-emitting unit is located in the first isolation opening, the first electrode of the first light-emitting unit is electrically connected to the conductive trace through the first via hole, and the orthographic projection of the first via hole on the isolation structure is located on the side of the fourth side wall away from the center of the first isolation opening.

[0019] In some possible implementations, the present application further provides an electronic device, which includes the display panel described in the present application, or includes a display panel prepared by the method for preparing the display panel described in the present application.

[0020] Compared with the prior art, this application has the following beneficial effects:

[0021] A display panel and an electronic device provided in the present application can improve the pixel aperture ratio of the first light-emitting unit by setting the first side wall of the first pixel opening to include a first protruding edge protruding in a direction away from the first pixel opening, and the positive projection of the first via hole on the pixel defining layer is located on the side of the second side wall away from the center of the first pixel opening, thereby being more conducive to improving the display performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 One of the schematic top views of the first electrode and the pixel opening of the first light-emitting unit, the second light-emitting unit and the third light-emitting unit provided in the embodiment of the present application;

[0024] Figure 2 A schematic top view of a display panel provided in an embodiment of the present application;

[0025] Figure 3 Provided in the embodiments of this application Figure 2 Schematic cross-sectional view at AA in the middle;

[0026] Figure 4 Provided in the embodiments of this application Figure 2 A schematic cross-sectional view of the middle BB;

[0027] Figure 5 A schematic top view of a first electrode and a first pixel opening of a first light-emitting unit provided in an embodiment of the present application;

[0028] Figure 6 A second schematic top view of the first electrode and the pixel opening of the first light-emitting unit, the second light-emitting unit and the third light-emitting unit provided in an embodiment of the present application;

[0029] Figure 7 The display panel provided in the embodiment of the present application includes a cross-sectional schematic diagram of a first encapsulation layer;

[0030] Figure 8 The display panel provided in the embodiment of the present application includes a cross-sectional schematic diagram of a second encapsulation layer and a third encapsulation layer;

[0031] Fig. 9 The isolation structure of the display panel provided in the embodiment of the present application includes a cross-sectional schematic diagram of a three-layer structure;

[0032] Fig.10 A schematic top view of the first electrodes and isolation openings of the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit provided in an embodiment of the present application.

[0033] Figure numerals: 1, substrate; 2, pixel defining layer; 21, pixel opening; 201, first pixel opening; 2011, first side wall; 2012, second side wall; 202, second pixel opening; 203, third pixel opening; 211, first protruding edge; 212, main body edge; 213, first recessed edge; 3, isolation structure; 31, first isolation portion; 32, second isolation portion; 33, third isolation portion; 4, first electrode; 41, protruding portion; 411, first inclined section; 412, vertical section; 413, second inclined section; 42, main body; 401, first edge; 402, first second edge; 403, third edge; 404, fourth edge; 5, light-emitting portion; 6, second electrode; 7, light-emitting unit; 71, first light-emitting unit; 72, second light-emitting unit; 73, third light-emitting unit; 8, isolation opening; 81, first isolation opening; 811, third side wall; 8111, second protruding edge; 812, fourth side wall; 8121, second recessed edge; 82, second isolation opening; 9, conductive layer; 91, conductive trace; 10, insulating layer; 101, first via hole; 11, first packaging layer; 111, packaging unit; 12, second packaging layer; 13, third packaging layer. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the inventive product is usually placed when in use. They 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 position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] It should be noted that, in the absence of conflict, different features in the embodiments of the present application may be combined with each other.

[0039] Improving the density of light-emitting units in a display panel (i.e., pixel density) is an important way to improve display effects. However, the display panels currently made using fine metal evaporation mask (FMM) technology cannot further increase the density of light-emitting units due to technical limitations. The inventors have found through long-term research that in order to solve the technical problem that the density of light-emitting units cannot be further increased, an isolation structure is set in some display panels. When the light-emitting material layer and the second electrode are evaporated in the entire layer, the light-emitting material layer and the second electrode can be disconnected at the isolation structure. Through multiple evaporation and multiple etching processes (i.e., light-emitting unit patterning), light-emitting units of different colors can be formed in different isolation openings.

[0040] Among them, patent CN118251982A, patent 202410864269.8, patent PCT / CN2024 / 098407, patent PCT / CN2024 / 102783, patent PCT / CN2024 / 098217, patent PCT / CN20241099419 and patent PCT / CN20241099072 record relevant technical solutions of isolation structure and encapsulation layer, and their contents are incorporated into this application by reference for reference.

[0041] The display panel in the related art includes a substrate, a pixel defining layer located on one side of the substrate, the pixel defining layer includes a pixel opening, and a light emitting unit at least partially located in the pixel opening, and the light emitting unit includes a first electrode (such as an anode).

[0042] The pixel aperture ratio will greatly affect the display effect of the display panel. However, it is not easy to improve the pixel aperture ratio of the display panel in the related art, which is not conducive to improving the display performance of the display panel.

[0043] In order to solve the above-mentioned technical problems, the inventor innovatively designed the following technical solutions, and the specific implementation solutions of the present application will be described in detail below in conjunction with the accompanying drawings. It should be noted that the defects existing in the solutions in the above-mentioned prior art are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above-mentioned technical problems and the solutions proposed in this embodiment below for the above-mentioned problems should all be the contributions made by the inventor to the present application in the process of invention and creation, and should not be understood as the technical content known to those skilled in the art.

[0044] See also Figure 1-Figure 3 This embodiment provides a display panel, which includes a substrate 1, a conductive layer 9, an insulating layer 10, a pixel defining layer 2 and a light-emitting unit 7.

[0045] The conductive layer 9 is located on one side of the substrate 1 and includes a conductive trace 91 . The insulating layer 10 is located on the side of the conductive layer 9 away from the substrate 1 . A via hole penetrating the insulating layer 10 is provided on the insulating layer 10 along the thickness direction of the display panel and includes a first via hole 101 .

[0046] The pixel defining layer 2 is located on a side of the insulating layer 10 away from the substrate 1, and the pixel defining layer 2 includes a plurality of pixel openings 21, the pixel openings 21 include a first pixel opening 201, the first pixel opening 201 includes a first side wall 2011 and a second side wall 2012 located at different positions, and at least a portion of the first side wall 2011 protrudes in a direction away from the first pixel opening 201 to form a first protruding edge 211.

[0047] At least part of the light-emitting unit 7 is located in the pixel opening 21, the light-emitting unit 7 includes a first electrode 4, the light-emitting unit 7 includes a first light-emitting unit 71, the first light-emitting unit 71 is located in the first pixel opening 201, the first electrode 4 of the first light-emitting unit is electrically connected to the conductive trace 91 through the first via 101, and the orthographic projection of the first via 101 on the pixel defining layer 2 is located on the side of the second side wall 2012 away from the center of the first pixel opening 201.

[0048] Based on the above design, this embodiment increases the pixel aperture ratio of the first light-emitting unit 71 by setting the first side wall 2011 of the first pixel opening 201 to include a first protruding edge 211 protruding in a direction away from the first pixel opening 201, and the positive projection of the first via 101 on the pixel defining layer 2 is located on the side of the second side wall 2012 away from the center of the first pixel opening 201, thereby being more conducive to improving the display performance of the display panel.

[0049] In some possible implementations, the light-emitting unit further includes a second light-emitting unit 72, the pixel opening 21 further includes a second pixel opening 202, the second light-emitting unit 72 is located in the second pixel opening 202, and the first side wall 2011 is a side wall of the first pixel opening 201 close to the second pixel opening 202. At least part of the first protruding edge 211 protrudes toward the second light-emitting unit 72, and along the arrangement direction of the first light-emitting unit 71 and the second light-emitting unit 72, at least part of the orthographic projection of the first protruding edge 211 on the substrate 1 and the orthographic projection of the first via 101 on the substrate 1 are located on both sides of the orthographic projection of the second side wall 2012 on the substrate 1.

[0050] Since the first protruding edge 211 protrudes toward the second light emitting unit 72, the area of ​​the first pixel opening 201 of the first light emitting unit can be increased by setting the first protruding edge 211, thereby increasing the pixel aperture ratio of the display panel and improving the display performance of the display panel.

[0051] Since at least part of the orthographic projection of the first protruding edge 211 on the substrate 1 and the orthographic projection of the first via hole 101 on the substrate 1 are located on both sides of the orthographic projection of the second side wall 2012 on the substrate 1, the first via hole 101 is not likely to affect the protrusion of the first protruding edge 211 toward the direction of the second light-emitting unit 72, thereby making it easier to increase the area of ​​the first pixel opening 201 of the first light-emitting unit 71.

[0052] For some possible implementations, see again Figure 2-Figure 3 The display panel also includes an isolation structure 3 located on a side of the pixel defining layer 2 away from the substrate 1, the isolation structure 3 encloses an isolation opening 8, at least part of the light-emitting unit 7 is located in the isolation opening 8, the pixel opening 21 exposes at least part of the first electrode 4, the orthographic projection of the pixel opening 21 on the substrate 11 is located within the orthographic projection of the isolation opening 8 on the substrate 11, the light-emitting unit 7 also includes a light-emitting portion 5 and a second electrode 6 which are sequentially stacked in a direction away from the substrate 1, and the light-emitting portion 5 is located on a side of the first electrode 4 away from the substrate 1.

[0053] The isolation opening 8 includes a first isolation opening 81 , which is connected to the first pixel opening 201 . The orthographic projection shape of the first pixel opening 201 on the substrate 1 is the same as the orthographic projection shape of the first isolation opening 81 on the substrate 1 .

[0054] The setting of the isolation structure 3 enables the display panel to form film layers of light-emitting units 7 of different colors in different isolation openings 8 without the need for a fine metal mask. When forming a light-emitting material layer, the light-emitting material layer will be separated by the isolation structure 3 to form a plurality of light-emitting portions 5 arranged at intervals. When forming a second electrode layer, the second electrode layer will be separated by the isolation structure 3 to form a plurality of second electrodes 6 arranged at intervals. The isolation structure 3 includes a conductive material. The second electrode 6 is electrically connected to the isolation structure 3. A first electrode 4, a light-emitting portion 5 and a second electrode 6 form a light-emitting unit 7. Among them, the first electrode 4 can be an anode, and the second electrode 6 can be a cathode.

[0055] In this way, different light-emitting units 7 can be made independent of each other, thereby improving the crosstalk between adjacent light-emitting units 7 and improving the display effect of the display panel. At the same time, due to the existence of the isolation structure 3, the light-emitting material layer and the second electrode layer in the light-emitting unit 7 of each color in the display panel can be first prepared on the entire surface and then patterned, thereby eliminating the fine metal mask plate, thereby saving the preparation cost of the display panel.

[0056] For some possible implementations, see again Figure 1 The light-emitting unit 7 also includes a third light-emitting unit 73 adjacent to the first light-emitting unit 71 and the second light-emitting unit 72. The pixel opening 21 also includes a third pixel opening 203. The third light-emitting unit is located in the third pixel opening 203. The first side wall 2011 is a side wall of the first pixel opening 201 close to the second pixel opening 202 and the third pixel opening 203.

[0057] Preferably, a first pixel opening 201, a second pixel opening 202 and a third pixel opening 203 form a pixel repeating unit, in which the second pixel opening 202 and the third pixel opening 203 are arranged along the first direction Y to form a pixel group, the pixel group and the first pixel opening 201 are arranged along the second direction X, and the first protruding edge 211 at least partially extends between the third pixel opening 203 and the second pixel opening 202.

[0058] The orthographic projection of at least a portion of the first protruding edge 211 on the substrate 1 is located between the orthographic projections of the third pixel opening 203 and the second pixel opening 202 on the substrate 1 .

[0059] Since the first protruding edge 211 protrudes toward the third light emitting unit 73, the area of ​​the first pixel opening 201 of the first light emitting unit 71 can be increased by setting the first protruding edge 211, thereby increasing the pixel aperture ratio of the display panel and improving the display performance of the display panel.

[0060] Since at least part of the orthographic projection of the first protruding edge 211 on the substrate 1 and the orthographic projection of the first via hole 101 on the substrate 1 are located on both sides of the orthographic projection of the main body edge 212 on the substrate 1, the first via hole 101 is not likely to affect the protrusion of the first protruding edge 211 toward the direction of the third light-emitting unit 73, thereby making it easier to increase the area of ​​the first pixel opening 201 of the first light-emitting unit 71, and further making it easier to increase the pixel aperture ratio of the display panel.

[0061] For some possible implementations, see again Figure 1-Figure 3 The first electrode 4 of the first light-emitting unit 71 includes a protruding portion 41 and a main body portion 42, the protruding direction of the protruding portion 41 is the same as the protruding direction of the first protruding edge 211, and the minimum distance D1 between the edge of the orthographic projection of the protruding portion 41 on the substrate 1 and the edge of the orthographic projection of the first electrode 4 of the second light-emitting unit 72 on the substrate 1 is greater than or equal to the minimum distance D2 between the edge of the orthographic projection of the main body portion 42 on the substrate 1 and the edge of the orthographic projection of the first electrode 4 of the second light-emitting unit 72 on the substrate 1.

[0062] Since the protrusion 41 protrudes toward the direction of the second light-emitting unit 72, the area of ​​the first electrode 4 of the first light-emitting unit 71 can be increased by setting the protrusion 41, and the area of ​​the pixel opening 21 of the first light-emitting unit 71 will also increase, thereby increasing the pixel opening ratio of the first light-emitting unit 71 and improving the display performance of the display panel.

[0063] The minimum distance D2 between the edge of the orthographic projection of the main body 42 on the substrate 1 and the edge of the orthographic projection of the first electrode 4 of the second light-emitting unit 72 on the substrate 1 is a distance at which the first electrode 4 of the first light-emitting unit 71 and the second light-emitting unit 72 are not easily short-circuited. Since the minimum distance D1 is greater than or equal to the minimum distance D2, the protrusion 41 of the first light-emitting unit 71 and the first electrode 4 of the second light-emitting unit 72 are not easily short-circuited, thereby making it difficult for the first electrode 4 of the first light-emitting unit and the first electrode 4 of the second light-emitting unit to be short-circuited.

[0064] For some possible implementations, see Figure 1-Figure 4 , a minimum distance D3 between an edge of an orthographic projection of the protrusion 41 on the substrate 1 and an edge of an orthographic projection of the first electrode 4 of the third light-emitting unit 73 on the substrate 1 is greater than or equal to a minimum distance D4 between an edge of an orthographic projection of the main body 42 on the substrate 1 and an edge of an orthographic projection of the first electrode 4 of the third light-emitting unit 73 on the substrate 1.

[0065] The first light emitting unit 71, the second light emitting unit 72 and the third light emitting unit 73 have different light emitting colors. For example, the light emitting color of the first light emitting unit 71 is blue, and / or the light emitting color of the second light emitting unit 72 is green, and / or the light emitting color of the third light emitting unit 73 is red.

[0066] Since the protrusion 41 protrudes toward the direction of the third light-emitting unit 73, the area of ​​the first electrode 4 of the first light-emitting unit 71 can be increased by setting the protrusion 41, and the area of ​​the pixel opening 21 of the first light-emitting unit 71 will also increase, thereby increasing the pixel opening ratio of the first light-emitting unit 71 and improving the display performance of the display panel.

[0067] The minimum distance D4 between the edge of the orthographic projection of the main body 42 on the substrate 1 and the edge of the orthographic projection of the first electrode 4 of the third light-emitting unit 73 on the substrate 1 is a distance at which the first electrode 4 of the first light-emitting unit 71 and the third light-emitting unit 73 are not easily short-circuited. Since the minimum distance D3 is greater than or equal to the minimum distance D4, the protrusion 41 of the first light-emitting unit 71 and the first electrode 4 of the third light-emitting unit 73 are not easily short-circuited, thereby making it difficult for the first electrode 4 of the first light-emitting unit and the first electrode 4 of the third light-emitting unit to be short-circuited.

[0068] Preferably, the minimum distance D4 between the edge of the orthographic projection of the body portion 42 on the substrate 1 and the edge of the orthographic projection of the first electrode 4 of the third light-emitting unit 73 on the substrate 1 is greater than or equal to 0.5 μm and less than or equal to 4 μm. For example, the minimum distance D4 may be 0.5 μm, 1 μm, 2 μm, 3 μm, 3.5 μm or 4 μm, etc. Reasonable setting of the minimum distance D4 can increase the pixel density while avoiding the short circuit between the first electrode 4 of the first light-emitting unit 71 and the first electrode 4 of the third light-emitting unit 73.

[0069] Preferably, see Figure 5 , the minimum distance L1 between the edge of the orthographic projection of the protrusion 41 on the substrate 1 and the edge of the orthographic projection of the first pixel opening 201 on the substrate 1 is greater than or equal to the minimum distance L2 between the edge of the orthographic projection of the main body 42 on the substrate 1 and the edge of the orthographic projection of the first pixel opening 201 on the substrate 1.

[0070] The minimum distance L2 between the edge of the orthographic projection of the main body 42 on the substrate 1 and the edge of the orthographic projection of the first pixel opening 201 on the substrate 1 is a distance that prevents the edge of the first electrode 4 of the first light-emitting unit 71 from being easily exposed in the first pixel opening 201. Since the minimum distance L1 is greater than or equal to the minimum distance L2, the edge of the protrusion 41 is not easily exposed in the first pixel opening 201 of the first light-emitting unit 71.

[0071] Preferably, see again Figure 5 The first side wall 2011 of the first pixel opening 201 includes a first protruding edge 211 and a main body edge 212, and the minimum distance L1 between the edge of the orthographic projection of the protruding portion 41 on the substrate 1 and the orthographic projection of the first protruding edge 211 on the substrate 1 is greater than or equal to the minimum distance L2 between the edge of the orthographic projection of the main body portion 42 on the substrate 1 and the orthographic projection of the main body edge 212 on the substrate 1.

[0072] The minimum distance L2 between the edge of the orthographic projection of the main body portion 42 on the substrate 1 and the orthographic projection of the main body edge 212 on the substrate 1 is a distance that makes it difficult for the edge of the main body portion 42 of the first electrode 4 of the first light-emitting unit 71 to be exposed within the main body edge 212 of the pixel opening 21. Since the minimum distance L1 is greater than or equal to the minimum distance L2, the edge of the protrusion 41 is not easily exposed within the first protrusion edge 211 of the first light-emitting unit 71.

[0073] Preferably, see again Figure 5 , the minimum distance L between the edge of the orthographic projection of the first electrode 4 on the substrate 1 and the edge of the orthographic projection of the first pixel opening 201 on the substrate 1 is greater than or equal to 0.5 μm and less than or equal to 4 μm. For example, the minimum distance L can be 0.5 μm, 1 μm, 2 μm, 3 μm, 3.5 μm or 4 μm. The minimum distance L is reasonably set so that the edge of the first electrode 4 is not exposed in the first pixel opening 201, and the area of ​​the first pixel opening 201 can be increased, thereby further improving the pixel opening ratio of the light-emitting unit 7.

[0074] Preferably, see again Figure 5 , the minimum distance L1 between the edge of the orthographic projection of the protrusion 41 on the substrate 1 and the orthographic projection of the first protruding edge 211 on the substrate 1, and the minimum distance L2 between the edge of the orthographic projection of the main body 42 on the substrate 1 and the orthographic projection of the main body edge 212 on the substrate 1 are both greater than or equal to 0.5μm and less than or equal to 4μm. For example, the minimum distance L1 or the minimum distance L2 can be 0.5μm, 1μm, 2μm, 3μm, 3.5μm or 4μm, etc. By reasonably setting the minimum distance L1 or the minimum distance L2 so that the edge of the protrusion 41 is not exposed in the first protruding edge 211 and the edge of the main body 42 is not exposed in the main body edge 212, the area of ​​the pixel opening 21 can be increased.

[0075] For some possible implementations, see again Figure 1 The protruding direction of the protruding portion 41 is the same as the protruding direction of the first protruding edge 211 , and both the protruding portion 41 and the first protruding edge 211 protrude toward the direction of the second light emitting unit 72 and the third light emitting unit 73 .

[0076] Since the protrusion 41 protrudes toward the second light-emitting unit 72 and the third light-emitting unit 73, the area of ​​the first electrode 4 can be increased. Since the protruding direction of the protrusion 41 is the same as the protruding direction of the first protruding edge 211, the area of ​​the pixel opening 21 can increase as the area of ​​the first electrode 4 increases, thereby improving the pixel aperture ratio of the display panel.

[0077] Preferably, see again Figure 1 The shape of the orthographic projection of the protrusion 41 on the substrate 1 is the same as the shape of the orthographic projection of the first protruding edge 211 on the substrate 1.

[0078] Optionally, the edge shape of the orthographic projection of the protrusion 41 on the substrate 1 and the shape of the enclosed figure of the orthographic projection of the first protruding edge 211 on the substrate 1 are both trapezoidal.

[0079] In this way, the convex shape of the first convex edge 211 is the same as the convex shape of the convex portion 41, and the convex shape of the first convex edge 211 and the convex shape of the convex portion 41 include but are not limited to a trapezoid. In this way, the opening area of ​​the first pixel opening 201 of the first light-emitting unit can be further increased, and then the pixel aperture ratio of the display panel can be further increased, and the convex shape of the first convex edge 211 and the convex shape of the convex portion 41 can also be designed in a diversified manner.

[0080] Preferably, the minimum distance D2 between the edge of the orthographic projection of the protrusion 41 on the substrate 1 and the edge of the orthographic projection of the first electrode 4 of the second light-emitting unit 72 on the substrate 1 is greater than or equal to 0.5 μm and less than or equal to 4 μm. For example, the minimum distance D2 may be 0.5 μm, 1 μm, 2 μm, 3 μm, 3.5 μm or 4 μm, etc. Reasonable setting of the minimum distance D2 can increase the pixel density while avoiding the short circuit between the first electrode 4 of the first light-emitting unit 71 and the first electrode 4 of the second light-emitting unit 73.

[0081] For some possible implementations, see again Figure 1 The orthographic projection edge of the first electrode 4 of the second light emitting unit 72 on the substrate 1 includes a first edge 401 and a second edge 402 , and the first edge 401 is located on a side of the second edge close to the protrusion 41 .

[0082] In order to prevent the distance between the protrusion 41 and the first electrode 4 of the second light-emitting unit 72 from being too short and causing a short circuit, the portion of the first electrode 4 of the second light-emitting unit 72 that is opposite to the protrusion 41 needs to be cut off, and the edge of the portion of the second light-emitting unit 72 that is opposite to the protrusion 41 that is cut off forms the first edge 401. In this way, by setting the edge of the first electrode 4 of the second light-emitting unit 72 that is opposite to the protrusion 41 as the first edge 401, it is less likely that the first electrode 4 of the first light-emitting unit 71 and the first electrode 4 of the second light-emitting unit 72 will be short-circuited.

[0083] Preferably, the minimum distance W1 between the orthographic projection of the first edge 401 on the substrate 1 and the edge of the orthographic projection of the pixel opening 21 of the second light-emitting unit 72 on the substrate 1 is greater than or equal to the minimum distance W2 between the second edge 402 and the edge of the orthographic projection of the pixel opening 21 of the second light-emitting unit 72 on the substrate 1.

[0084] The minimum distance W2 between the second edge 402 and the edge of the positive projection of the pixel opening 21 of the second light-emitting unit 72 on the substrate 1 is a distance that makes it difficult for the second edge 402 of the first electrode 4 of the second light-emitting unit 72 to be exposed in the pixel opening 21. Since the minimum distance W1 is greater than or equal to the minimum distance W2, the first edge 401 is not easily exposed in the pixel opening 21.

[0085] Preferably, see again Figure 1 and Figure 4 The edge of the positive projection of the protrusion 41 on the substrate 1 includes a first inclined section 411 , a vertical section 412 , and a second inclined section 413 connected in sequence, and the first inclined section 411 is parallel to the first edge 401 .

[0086] Optionally, the vertical segment 412 is parallel to a portion of the second edge 403 .

[0087] In this way, the first electrode 4 of the first light emitting unit 71 and the first electrode 4 of the second light emitting unit 72 are less likely to be short-circuited.

[0088] Optionally, the minimum distance W1 between the first edge 401 and the edge of the orthographic projection of the pixel opening 21 of the second light-emitting unit 72 on the substrate 1 is greater than or equal to 0.5 μm and less than or equal to 4 μm. For example, the minimum distance W1 may be 0.5 μm, 1 μm, 2 μm, 3 μm, 3.5 μm or 4 μm, etc. By properly setting the minimum distance W1, the area of ​​the pixel opening 21 of the first light-emitting unit 71 can be increased while making it difficult for the first electrode 4 of the second light-emitting unit 72 to be exposed in the pixel opening 21 of the second light-emitting unit 72.

[0089] Preferably, see again Figure 1 and Figure 5The orthographic projection edge of the first electrode 4 of the third light-emitting unit 73 on the substrate 1 includes a third edge 403 and a fourth edge 404. Along the arrangement direction of the first light-emitting unit 71 and the third light-emitting unit 73, the third edge 403 is located on the side of the fourth edge 404 close to the protrusion 41.

[0090] In order to prevent the distance between the protrusion 41 and the first electrode 4 of the third light-emitting unit 73 from being too short and causing a short circuit, the portion of the first electrode 4 of the third light-emitting unit 73 that is opposite to the protrusion 41 needs to be cut off, and the edge of the portion of the third light-emitting unit 73 that is opposite to the protrusion 41 that is cut off forms the third edge 403. In this way, by setting the edge of the first electrode 4 of the third light-emitting unit 73 that is opposite to the protrusion 41 as the third edge 403, it is less likely that the first electrode 4 of the first light-emitting unit 71 and the first electrode 4 of the third light-emitting unit 73 will be short-circuited.

[0091] Preferably, the minimum distance W3 between the orthographic projection of the third edge 401 on the substrate 1 and the edge of the orthographic projection of the pixel opening 21 of the third light-emitting unit 73 on the substrate 1 is greater than or equal to the minimum distance W4 between the fourth edge 404 and the edge of the orthographic projection of the pixel opening 21 of the third light-emitting unit 73 on the substrate 1.

[0092] The minimum distance W4 between the fourth edge 404 and the edge of the positive projection of the pixel opening 21 of the third light-emitting unit 73 on the substrate 1 is a distance that makes the fourth edge 404 of the first electrode 4 of the third light-emitting unit 73 not easily exposed in the pixel opening 21. Since the minimum distance W3 is greater than or equal to the minimum distance W4, the third edge 403 is not easily exposed in the pixel opening 21.

[0093] Preferably, see again Figure 1 and Figure 5 , the second inclined section 413 is parallel to the third edge 403 .

[0094] Optionally, the vertical segment 412 is parallel to a portion of the fourth edge 404 .

[0095] In this way, the first electrode 4 of the first light emitting unit 71 and the first electrode 4 of the third light emitting unit 73 are less likely to be short-circuited.

[0096] Optionally, the minimum distance W3 between the third edge 403 and the edge of the orthographic projection of the pixel opening 21 of the third light-emitting unit 73 on the substrate 1 is greater than or equal to 0.5 μm and less than or equal to 4 μm. For example, the minimum distance W3 may be 0.5 μm, 1 μm, 2 μm, 3 μm, 3.5 μm or 4 μm, etc. By properly setting the minimum distance W3, the first electrode 4 of the third light-emitting unit 73 is not easily exposed in the pixel opening 21 of the third light-emitting unit 73 while increasing the area of ​​the pixel opening 21 of the first light-emitting unit 71.

[0097] For some possible implementations, see Figure 6 , the minimum distance H1 between the edge of the orthographic projection of the first electrode 4 on the substrate 1 and the edge of the orthographic projection of the first via 101 on the substrate 1 is greater than or equal to 0.3 μm and less than or equal to 1 μm. For example, the minimum distance H1 may be 0.3 μm, 0.5 μm, 0.7 μm, 0.9 μm or 1 μm, etc. Reasonable setting of the minimum distance H1 may make it easier to electrically connect the first electrode 4 to the conductive trace 91.

[0098] Preferably, the minimum distance H2 between the edge of the orthographic projection of the side of the pixel opening 21 close to the substrate 1 on the substrate 1 and the edge of the orthographic projection of the first via hole 101 on the substrate 1 is greater than or equal to 0.5 μm and less than or equal to 3 μm. For example, the minimum distance H2 may be 0.5 μm, 1 μm, 1.5 μm, 2 μm, 2.5 μm or 3 μm, etc. Reasonable setting of the minimum distance H2 may make it easier to electrically connect the first electrode 4 to the conductive trace 91.

[0099] Preferably, the orthographic projection diameter φ of the first via hole 101 on the substrate 1 is greater than or equal to 1 μm and less than or equal to 5 μm. For example, the diameter φ may be 1 μm, 1.5 μm, 2.5 μm, 3.5 μm, 4.5 μm or 5 μm, etc. Reasonable setting of the diameter φ can not only make it easier to electrically connect the first electrode 4 and the conductive trace 91, but also increase the opening area of ​​the pixel opening 21.

[0100] For some possible implementations, see again Figure 6 and Figure 1 The first side wall 2011 and the second side wall 2012 are two side walls opposite to the first pixel opening 201 .

[0101] Preferably, at least a portion of the second side wall 2012 is recessed toward the first pixel opening 201 to form a first recessed edge 213 , and the recessed direction of the first recessed edge 213 is arranged in the same direction as the protruding direction of the first protruding edge 211 .

[0102] After the distance between adjacent light-emitting units 7 is reduced, the distance between the first electrodes 4 of adjacent light-emitting units 7 will be reduced. In order to prevent the first electrode 4 of the first light-emitting unit 71 from short-circuiting with the first electrode 4 of the second light-emitting unit 72, a first recessed edge 213 recessed toward the center of the first pixel opening 201 is provided at a position opposite to the first protruding edge 211. In this way, not only the area of ​​the first pixel opening 201 of the first light-emitting unit 71 can be increased, but also the risk of short-circuiting with the first electrode 4 of the second light-emitting unit 72 can be reduced.

[0103] Preferably, the orthographic projection of the first recessed edge 213 on the substrate 1 surrounds at least a portion of the orthographic projection of the first via hole 101 on the substrate 1 .

[0104] Optionally, the shape of the orthographically projected enclosed figure of the first concave edge 213 on the substrate 1 is the same as the shape of the orthographically projected enclosed figure of the first convex edge 211 on the substrate 1 .

[0105] Optionally, the shape of the enclosed figure of the orthographic projection of the first concave edge 213 on the substrate 1 and the shape of the enclosed figure of the orthographic projection of the first convex edge 211 on the substrate 1 are both trapezoidal.

[0106] In this way, the first via 101 electrically connecting the first electrode 4 of the first light emitting unit 71 and the conductive trace 91 is less likely to affect the setting of the protrusion 41 , thereby making it easier to increase the pixel opening 21 of the first light emitting unit 71 .

[0107] Preferably, see Figure 6 , the minimum distance H2 between the orthographic projection of the first recessed edge 213 on the substrate 1 and the edge of the orthographic projection of the first via hole 101 on the substrate 1 is greater than or equal to 0.5 μm and less than or equal to 3 μm. For example, the minimum distance H2 may be 0.5 μm, 1 μm, 1.5 μm, 2 μm, 2.5 μm or 3 μm, etc. Reasonable setting of the minimum distance H2 may make it easier to electrically connect the first electrode 4 to the conductive trace 91, and may also make it less likely that the first electrodes 4 of adjacent light-emitting units 7 are short-circuited.

[0108] For some possible implementations, see Figure 6 , the minimum distance D between the edge of the orthographic projection of the first electrode 4 of the first light-emitting unit 71 on the substrate 1 and the edge of the orthographic projection of the first electrode 4 of the second light-emitting unit 72 on the substrate 1 is greater than or equal to 0.5 μm and less than or equal to 4 μm; for example, the minimum distance D can be 0.5 μm, 1 μm, 2 μm, 3 μm, 3.5 μm or 4 μm, etc. Reasonable setting of the minimum distance D can increase the area of ​​the pixel opening 21 of the light-emitting unit 7 while preventing the first electrodes 4 of adjacent light-emitting units 7 from being short-circuited.

[0109] Preferably, see again Figure 6 , the minimum distance W between the edge of the orthographic projection of the pixel opening 21 of the first light-emitting unit 71 on the substrate 1 and the edge of the orthographic projection of the pixel opening 21 of the second light-emitting unit 72 on the substrate 1 is greater than or equal to 4μm and less than or equal to 20μm. For example, the minimum distance W can be 4μm, 5μm, 7μm, 10μm, 15μm, 18μm or 20μm, etc. Reasonably setting the minimum distance W can increase the pixel density of the display panel, thereby improving the display effect of the display panel.

[0110] For some possible implementations, see Figure 7 The display panel also includes a first encapsulation layer 11 located on the side of the light-emitting unit 7 away from the substrate 1, the first encapsulation layer 11 includes a plurality of spaced-apart encapsulation units 111, at least some of the encapsulation units 111 extend from the side of the isolation structure 3 toward the isolation opening 8 to the side of the isolation structure 3 away from the substrate 1.

[0111] Optionally, the encapsulation units 111 are arranged at intervals on a side of the isolation structure 3 away from the substrate 1 .

[0112] Optionally, a gap exists between the encapsulation unit 111 located on the side of the isolation structure 3 away from the substrate 1 and the side of the isolation structure 3 away from the substrate 1 .

[0113] Optionally, the orthographic projection of the encapsulation unit 111 on the substrate 1 covers the orthographic projection of the isolation opening 8 on the substrate 1 and covers the orthographic projection of a portion of the isolation structure 3 on the substrate 1 .

[0114] During the patterning process of the light-emitting unit 7 , the first encapsulation layer 11 is disconnected at the isolation structure 3 to form the encapsulation unit 111 . The encapsulation unit 111 can completely and independently encapsulate the corresponding light-emitting unit 7 , thereby improving the display characteristics of the display panel.

[0115] For some possible implementations, see Figure 8 The display panel further includes a second encapsulation layer 12 located on a side of the first encapsulation layer 11 away from the substrate 1 .

[0116] Optionally, the display panel further includes a third encapsulation layer 13 located on a side of the second encapsulation layer 12 away from the substrate 1 .

[0117] Optionally, the materials of the first encapsulation layer 11 and the third encapsulation layer 13 both include inorganic materials.

[0118] Optionally, the material of the second encapsulation layer 12 includes an organic material.

[0119] For example, the first encapsulation layer 11 and the third encapsulation layer 13 can be formed by chemical vapor deposition (CVD), and the second encapsulation layer 12 can be formed by inkjet printing (IJP). The second encapsulation layer 12 and the third encapsulation layer 13 can provide a better encapsulation effect on the light-emitting unit 7, thereby further improving the encapsulation quality of the display panel.

[0120] For some possible implementations, see again Figure 8 The isolation structure 3 includes a first isolation portion 31 and a second isolation portion 32 which are stacked in sequence in a direction away from the substrate 1 , and the orthographic projection of the side of the first isolation portion 31 away from the substrate 1 on the substrate 1 is located within the orthographic projection of the second isolation portion 32 on the substrate 1 .

[0121] Since the second isolation portion 32 is located on the side of the first isolation portion 31 away from the substrate 11, and the lateral width of the second isolation portion 32 is greater than the lateral width of the first isolation portion 31 in a plane parallel to the substrate 11, the second isolation portion 32 disconnects the light-emitting functional layer and the second electrode layer at the isolation structure 3. In this way, the isolation structure 3 formed by the first isolation portion 31 and the second isolation portion 32 can make it easier to independently package each light-emitting unit 7, thereby improving the packaging yield of the display panel.

[0122] Preferably, see again Figure 8 The second electrode 6 is electrically connected to the first isolation portion 31. The first isolation portion 31 includes a conductive material, and the second electrode 6 corresponding to the light emitting unit 7 extends to contact the side wall of the first isolation portion 31 to achieve electrical connection between the second electrode 6 corresponding to the light emitting unit 7 and the first isolation portion 31.

[0123] See also Fig. 9 The isolation structure 3 further includes a third isolation portion 33 located on a side of the first isolation portion 31 facing the substrate 1 , and the second electrode 6 is electrically connected to the third isolation portion 33 .

[0124] The third isolation portion 33 includes a conductive material, and the second electrode 6 corresponding to the light emitting unit 7 extends to contact the side wall of the third isolation portion 33 to achieve electrical connection between the second electrode 6 corresponding to the light emitting unit 7 and the third isolation portion 33 .

[0125] Specifically, the material of the third isolation portion 33 includes molybdenum metal; and / or, the material of the first isolation portion 31 includes aluminum metal; and / or, the material of the second isolation portion 32 includes titanium metal. In this way, when the isolation structure 3 separates the second electrode layer into the second electrode 6, the second electrode 6 is more easily electrically connected to the first isolation portion 31 and / or the third isolation portion 33.

[0126] The orthographic projection of the light emitting portion 5 on the substrate 11 is outside the orthographic projection of the third isolation portion 33 and / or the first isolation portion 31 on the substrate 11. In this way, the light emitting portion 5 does not overlap the isolation structure 3, thereby effectively improving the crosstalk problem between the light emitting units 7.

[0127] For some possible implementations, see Figure 1-Figure 3 This embodiment provides a display panel, which includes a substrate 1 and a light-emitting unit 7.

[0128] The light-emitting unit 7 includes a first electrode 4, and the light-emitting unit includes an adjacent first light-emitting unit 71 and a second light-emitting unit 72. The first electrode 4 of the first light-emitting unit 71 includes a protrusion 41 and a main body 42. The protrusion 41 protrudes toward the second light-emitting unit 72. The minimum distance D1 between the edge of the orthographic projection of the protrusion 41 on the substrate and the edge of the orthographic projection of the first electrode 4 of the second light-emitting unit 72 on the substrate is greater than or equal to the minimum distance D2 between the edge of the orthographic projection of the main body 42 on the substrate and the edge of the orthographic projection of the first electrode 4 of the second light-emitting unit 7 on the substrate 1.

[0129] Since the protrusion 41 protrudes toward the direction of the second light-emitting unit 72, the area of ​​the first electrode 4 of the first light-emitting unit 71 can be increased by setting the protrusion 41, and the area of ​​the corresponding first pixel opening 201 of the first light-emitting unit 71 will also increase, thereby increasing the pixel opening rate of the first light-emitting unit 71 and improving the display performance of the display panel.

[0130] The minimum distance D2 between the edge of the orthographic projection of the main body 42 on the substrate and the edge of the orthographic projection of the first electrode 4 of the second light-emitting unit 72 on the substrate is a distance at which the first electrode 4 of the second light-emitting unit 72 is not easily short-circuited. Since the minimum distance D1 is greater than or equal to the minimum distance D2, the protrusion 41 and the first electrode 4 of the second light-emitting unit 72 are not easily short-circuited, thereby preventing the first electrodes 4 of two adjacent light-emitting units 7 from being easily short-circuited.

[0131] See also Figure 2-Figure 3 and Fig.10 This embodiment provides a display panel, which includes a substrate 1, a conductive layer 9, an insulating layer 10, an isolation structure 3 and a light-emitting unit 7.

[0132] The conductive layer 9 is located on one side of the substrate 1 and includes a conductive trace 91 ; the insulating layer 10 is located on the side of the conductive layer 9 away from the substrate 1 , and a via hole penetrating the insulating layer 10 is provided on the insulating layer 10 along the thickness direction of the display panel, the via hole being a first via hole 101 .

[0133] The isolation structure 3 is located on a side of the insulating layer 10 away from the substrate 1. The isolation structure 3 includes a plurality of isolation openings 8. The isolation openings 8 include a first isolation opening 81. The first isolation opening 81 includes a third side wall 811 and a fourth side wall 812 located at different positions. At least a portion of the third side wall 811 protrudes in a direction away from the first isolation opening 81 to form a second protruding edge 8111.

[0134] At least part of the light-emitting unit 7 is located in the first isolation opening 81, the light-emitting unit 7 includes a first electrode 4, the light-emitting unit 7 includes a first light-emitting unit 71, the first light-emitting unit 71 is located in the first isolation opening 81, the first electrode 4 of the first light-emitting unit 71 is electrically connected to the conductive trace 91 through the first via 101, and the orthographic projection of the first via 101 on the isolation structure 3 is located on the side of the fourth side wall 812 away from the center of the first isolation opening 81.

[0135] The light-emitting unit also includes a second light-emitting unit 72, and the isolation opening 8 also includes a second isolation opening 82. The second light-emitting unit 72 is located in the second isolation opening 82. The third side wall 811 of the first isolation opening 81 of the first light-emitting unit 71 includes a second protruding edge 8111, and at least a portion of the second protruding edge 8111 protrudes toward the second light-emitting unit 72. Along the arrangement direction of the first light-emitting unit 71 and the second light-emitting unit 72, at least a portion of the second protruding edge 8111 is projected on the substrate 1 and the first via 101 is projected on the substrate 1 on both sides of the fourth side wall 812 is projected on the substrate 1.

[0136] Since the second protruding edge 8111 protrudes toward the second light-emitting unit 72, the area of ​​the first isolation opening 81 of the first light-emitting unit 71 can be increased by setting the second protruding edge 8111, thereby increasing the pixel aperture ratio of the display panel and improving the display performance of the display panel.

[0137] Since at least part of the orthographic projection of the second protruding edge 8111 on the substrate 1 and the orthographic projection of the first via hole 101 on the substrate 1 are located on both sides of the orthographic projection of the fourth side wall 812 on the substrate 1, the first via hole 101 is not likely to affect the protrusion of the second protruding edge 8111 toward the second light-emitting unit, thereby making it easier to increase the area of ​​the first isolation opening 81 of the first light-emitting unit.

[0138] In some possible implementations, the third side wall 811 and the fourth side wall 812 are two side walls oppositely disposed to the first isolation opening 81 .

[0139] Preferably, at least a portion of the fourth side wall 812 is recessed toward the first isolation opening 81 to form a second recessed edge 8121 .

[0140] After the distance between adjacent light-emitting units 7 is reduced, the distance between the first electrodes 4 of adjacent light-emitting units 7 will be reduced. In order to prevent the first electrode 4 of the first light-emitting unit 71 from short-circuiting with the first electrode 4 of the second light-emitting unit 72, a second recessed edge 8121 recessed toward the center of the first isolation opening 81 is provided at a position opposite to the second protruding edge 8111. In this way, not only the area of ​​the first isolation opening 81 of the first light-emitting unit 71 can be increased, but also the risk of short-circuiting with the first electrode 4 of the second light-emitting unit 72 can be reduced.

[0141] Preferably, the orthographic projection of the second recessed edge 8121 on the substrate 1 surrounds at least a portion of the orthographic projection of the first via hole 101 on the substrate 1 .

[0142] Preferably, the recessed direction of the second recessed edge 8121 is arranged in the same direction as the protruding direction of the second protruding edge 8111 .

[0143] Preferably, the shape of the orthographic enclosed figure of the second recessed edge 8121 on the substrate 1 is the same as the shape of the orthographic enclosed figure of the second protruding edge 8111 on the substrate 1 .

[0144] Preferably, the shape of the enclosed figure of the orthographic projection of the second recessed edge 8121 on the substrate 1 and the shape of the enclosed figure of the orthographic projection of the second protruding edge 8111 on the substrate 1 are both trapezoidal.

[0145] Preferably, the isolation opening 8 further includes a second isolation opening 82 adjacent to the first isolation opening 81 , and the light-emitting unit 7 further includes a second light-emitting unit 72 , which is located in the second isolation opening 82 ; the third side wall 811 is a side wall of the first isolation opening 81 close to the second isolation opening 82 .

[0146] Preferably, the isolation opening 8 further includes a third isolation opening 83 adjacent to the first isolation opening 81 , the light emitting unit 7 further includes a third light emitting unit 73 , the third light emitting unit 73 is located in the third isolation opening 83 , and the third sidewall 811 is a sidewall of the first isolation opening 81 close to the third isolation opening 83 .

[0147] In this way, the first via 101 electrically connecting the first electrode 4 of the first light emitting unit 71 and the conductive trace 91 is less likely to affect the setting of the first electrode 4, thereby making it easier to increase the area of ​​the first isolation opening 81 of the first light emitting unit 71.

[0148] In some possible implementations, the present application further provides an electronic device, the electronic device comprising the display panel of the present application, or comprising a display panel prepared by the method for preparing a display panel of the present application. The electronic device may include a device with image processing capabilities, such as a server, a personal computer, a laptop computer, etc. Since the electronic device comprises the display panel of the present application, the display quality of the electronic device is better.

[0149] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0150] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: The display panel comprises: substrate; A conductive layer, located on one side of the substrate, the conductive layer comprising conductive traces; an insulating layer, located on a side of the conductive layer away from the substrate, and along a thickness direction of the display panel, the insulating layer is provided with via holes penetrating the insulating layer, the via holes comprising first via holes; a pixel defining layer, located on a side of the insulating layer away from the substrate, the pixel defining layer comprising a plurality of pixel openings, the pixel openings comprising a first pixel opening, the first pixel opening comprising a first side wall and a second side wall located at different positions, at least a portion of the first side wall protruding in a direction away from the first pixel opening to form a first protruding edge; A light-emitting unit is at least partially located in the pixel opening, the light-emitting unit includes a first electrode, the light-emitting unit includes a first light-emitting unit, the first light-emitting unit is located in the first pixel opening, the first electrode of the first light-emitting unit is electrically connected to the conductive trace through the first via hole, and the positive projection of the first via hole on the pixel defining layer is located on the side of the second side wall away from the center of the first pixel opening.

2. The display panel according to claim 1, characterized in that: The first side wall and the second side wall are two side walls arranged opposite to the first pixel opening; Preferably, at least a portion of the second side wall is recessed toward the first pixel opening to form a first recessed edge; Preferably, the orthographic projection of the first recessed edge on the substrate surrounds at least a portion of the orthographic projection of the first via hole on the substrate; Preferably, the concave direction of the first concave edge is arranged in the same direction as the convex direction of the first convex edge; Preferably, the shape of the orthographic projection enclosed figure of the first concave edge on the substrate is the same as the shape of the orthographic projection enclosed figure of the first convex edge on the substrate; Preferably, the shape of the orthographic projection enclosed figure of the first concave edge on the substrate and the shape of the orthographic projection enclosed figure of the first convex edge on the substrate are both trapezoidal; Preferably, a minimum distance between an orthographic projection of the first recessed edge on the substrate and an edge of the orthographic projection of the first via hole on the substrate is greater than or equal to 0.5 μm and less than or equal to 3 μm.

3. The display panel according to claim 1, characterized in that: The pixel opening further includes a second pixel opening adjacent to the first pixel opening, the light emitting unit further includes a second light emitting unit, and the second light emitting unit is located in the second pixel opening; The first side wall is a side wall of the first pixel opening close to the second pixel opening; Preferably, the pixel opening further includes a third pixel opening adjacent to the first pixel opening, the light emitting unit further includes a third light emitting unit, the third light emitting unit is located in the third pixel opening, and the first side wall is a side wall of the first pixel opening close to the third pixel opening; Preferably, one of the first pixel openings, one of the second pixel openings and one of the third pixel openings form a pixel repetition unit, and in one of the pixel repetition units, the second pixel opening and the third pixel opening are arranged along a first direction to form a pixel group, the pixel group and the first pixel opening are arranged along a second direction, and the first protruding edge at least partially extends between the third pixel opening and the second pixel opening.

4. The display panel according to claim 3, characterized in that: The first electrode of the first light-emitting unit includes a protrusion and a body, and the minimum distance between an edge of an orthographic projection of the protrusion on the substrate and an edge of an orthographic projection of the first electrode of the second light-emitting unit on the substrate is greater than or equal to the minimum distance between an edge of an orthographic projection of the body on the substrate and an edge of an orthographic projection of the first electrode of the second light-emitting unit on the substrate; Preferably, the shape of the orthographic projection of the protruding portion on the substrate is the same as the shape of the enclosed figure of the orthographic projection of the first protruding edge on the substrate; Preferably, the orthographic projection shape of the protrusion on the substrate and the orthographic projection enclosed figure of the first protruding edge on the substrate are both trapezoidal; Preferably, a minimum distance between an edge of an orthographic projection of the protrusion on the substrate and an edge of an orthographic projection of the first electrode of the second light emitting unit on the substrate is greater than or equal to 0.5 μm and less than or equal to 4 μm.

5. The display panel according to claim 4, characterized in that: The light-emitting unit further includes a third light-emitting unit adjacent to both the first light-emitting unit and the second light-emitting unit, and a minimum distance between an edge of an orthographic projection of the protruding portion on the substrate and an edge of an orthographic projection of the first electrode of the third light-emitting unit on the substrate is greater than or equal to a minimum distance between an edge of an orthographic projection of the main body portion on the substrate and an edge of an orthographic projection of the first electrode of the third light-emitting unit on the substrate; Preferably, a minimum distance between an edge of an orthographic projection of the body portion on the substrate and an edge of an orthographic projection of the first electrode of the third light-emitting unit on the substrate is greater than or equal to 0.5 μm and less than or equal to 4 μm; Preferably, the first light emitting unit, the second light emitting unit and the third light emitting unit have different light emitting colors; Preferably, the light emitting color of the first light emitting unit is blue, and / or the light emitting color of the second light emitting unit is green, and / or the light emitting color of the third light emitting unit is red.

6. The display panel according to claim 4, characterized in that: The minimum distance between the edge of the orthographic projection of the protruding portion on the substrate and the edge of the orthographic projection of the first pixel opening on the substrate is greater than or equal to the minimum distance between the edge of the orthographic projection of the main portion on the substrate and the edge of the orthographic projection of the first pixel opening on the substrate; Preferably, at least part of the first sidewall further comprises a body edge connected to the first protruding edge, and the minimum distance between the edge of the orthographic projection of the protruding portion on the substrate and the orthographic projection of the first protruding edge on the substrate is greater than or equal to the minimum distance between the edge of the orthographic projection of the body portion on the substrate and the orthographic projection of the body edge on the substrate; Preferably, a minimum distance between an edge of an orthographic projection of the first electrode on the substrate and an edge of an orthographic projection of the first pixel opening on the substrate is greater than or equal to 0.5 μm and less than or equal to 4 μm; Preferably, a minimum distance between an edge of an orthographic projection of the protrusion on the substrate and an orthographic projection of the first protruding edge on the substrate is greater than or equal to 0.5 μm and less than or equal to 4 μm.

7. The display panel according to claim 4, characterized in that: The orthographic projection edge of the first electrode of the second light-emitting unit on the substrate includes a first edge and a second edge, and the first edge is located on a side of the second edge close to the protrusion; Preferably, the minimum distance between the first edge and the edge of the orthographic projection of the second pixel opening on the substrate is greater than or equal to the minimum distance between the second edge and the edge of the orthographic projection of the second pixel opening on the substrate; Preferably, the edge of the orthographic projection of the protrusion on the substrate comprises a first inclined section, a vertical section and a second inclined section connected in sequence, and the first inclined section is parallel to the first edge; Preferably, the vertical section is parallel to a portion of the second edge; Preferably, a minimum distance between the first edge and an edge of an orthographic projection of the second pixel opening on the substrate is greater than or equal to 0.5 μm and less than or equal to 4 μm.

8. The display panel according to claim 4, characterized in that: The light-emitting unit further includes a third light-emitting unit adjacent to both the first light-emitting unit and the second light-emitting unit, the orthographic projection edge of the first electrode of the third light-emitting unit on the substrate includes a third edge and a fourth edge, and the third edge is located between the fourth edge and the orthographic projection of the protrusion on the substrate; Preferably, the minimum distance between the edge of the orthographic projection of the third pixel opening on the substrate and the third edge is greater than or equal to the minimum distance between the edge of the orthographic projection of the third pixel opening on the substrate and the fourth edge; Preferably, the orthographic projection edge of the protrusion on the substrate comprises a first inclined section, a vertical section and a second inclined section connected in sequence, and the second inclined section is parallel to the third edge; Preferably, the vertical section is parallel to a portion of the fourth edge; Preferably, a minimum distance between the third edge and an edge of an orthographic projection of the third pixel opening on the substrate is greater than or equal to 0.5 μm and less than or equal to 4 μm.

9. The display panel according to claim 1, characterized in that: A minimum distance between an edge of an orthographic projection of the first electrode on the substrate and an edge of an orthographic projection of the first via hole on the substrate is greater than or equal to 0.3 μm and less than or equal to 1 μm; Preferably, a minimum distance between an edge of an orthographic projection of a side of the pixel opening close to the substrate on the substrate and an edge of an orthographic projection of the first via hole on the substrate is greater than or equal to 0.5 μm and less than or equal to 3 μm; Preferably, the orthographic projection diameter of the first via hole on the substrate is greater than or equal to 1 μm and less than or equal to 5 μm; Preferably, the light-emitting unit further comprises a second light-emitting unit, and a minimum distance between an edge of an orthographic projection of a first electrode of the first light-emitting unit on the substrate and an edge of an orthographic projection of a first electrode of the second light-emitting unit on the substrate is greater than or equal to 0.5 μm and less than or equal to 4 μm; Preferably, the pixel opening further includes a second pixel opening adjacent to the first pixel opening, and a minimum distance between an edge of an orthographic projection of the first pixel opening on the substrate and an edge of an orthographic projection of the second pixel opening on the substrate is greater than or equal to 4 μm and less than or equal to 20 μm.

10. The display panel according to any one of claims 1 to 9, characterized in that: The display panel further comprises an isolation structure located on a side of the pixel defining layer away from the substrate, the isolation structure encloses an isolation opening, and at least part of the light emitting unit is located in the isolation opening; Preferably, the isolation opening comprises a first isolation opening, and the first isolation opening is connected to the first pixel opening; Preferably, the orthographic projection of the first pixel opening on the substrate is located within the orthographic projection of the first isolation opening on the substrate; Preferably, the orthographic projection shape of the first pixel opening on the substrate is the same as the orthographic projection shape of the first isolation opening on the substrate; Preferably, the display panel also includes a first encapsulation layer located on the side of the light-emitting unit away from the substrate, the first encapsulation layer includes a plurality of spaced-apart encapsulation units, and at least some of the encapsulation units extend from the side of the isolation structure toward the isolation opening to the side of the isolation structure away from the substrate.

11. The display panel according to claim 10, characterized in that: The encapsulation unit is arranged at intervals on a side of the isolation structure away from the substrate; Preferably, there is a gap between the packaging unit located on a side of the isolation structure away from the substrate and a side of the isolation structure away from the substrate; Preferably, the orthographic projection of the encapsulation unit on the substrate covers the orthographic projection of the isolation opening on the substrate and covers a portion of the orthographic projection of the isolation structure on the substrate.

12. The display panel according to claim 10, characterized in that: The display panel further comprises a second encapsulation layer located on a side of the first encapsulation layer away from the substrate; Preferably, the display panel further comprises a third encapsulation layer located on a side of the second encapsulation layer away from the substrate; Preferably, the materials of the first encapsulation layer and the third encapsulation layer both include inorganic materials; Preferably, the material of the second encapsulation layer includes organic material.

13. The display panel according to claim 10, characterized in that: The isolation structure comprises a first isolation portion and a second isolation portion which are sequentially stacked in a direction away from the substrate, wherein an orthographic projection of a side of the first isolation portion away from the substrate on the substrate is located within an orthographic projection of the second isolation portion on the substrate; Preferably, the light-emitting unit further comprises a light-emitting portion and a second electrode which are sequentially stacked in a direction away from the substrate, and the light-emitting portion is located on a side of the first electrode away from the substrate; Preferably, the second electrode is electrically connected to the first isolation portion; and / or the isolation structure further comprises a third isolation portion located on a side of the first isolation portion facing the substrate, and the second electrode is electrically connected to the third isolation portion; Preferably, the material of the third isolation portion includes molybdenum metal; and / or the material of the first isolation portion includes aluminum metal; and / or the material of the second isolation portion includes titanium metal.

14. A display panel, characterized in that: The display panel comprises: substrate; A light-emitting unit, wherein the light-emitting unit includes a first electrode, and the light-emitting unit includes adjacent first and second light-emitting units, the first electrode of the first light-emitting unit includes a protrusion and a main body, the protrusion protrudes toward the second light-emitting unit, and the minimum distance between the edge of the orthographic projection of the protrusion on the substrate and the edge of the orthographic projection of the first electrode of the second light-emitting unit on the substrate is greater than or equal to the minimum distance between the edge of the orthographic projection of the main body on the substrate and the edge of the orthographic projection of the first electrode of the second light-emitting unit on the substrate.

15. A display panel, characterized in that: The display panel comprises: substrate; A conductive layer, located on one side of the substrate, the conductive layer comprising conductive traces; an insulating layer, located on a side of the conductive layer away from the substrate, and along a thickness direction of the display panel, the insulating layer is provided with via holes penetrating the insulating layer, the via holes comprising first via holes; an isolation structure, located at a side of the insulating layer away from the substrate, the isolation structure comprising a plurality of isolation openings, the isolation openings comprising a first isolation opening, the first isolation opening comprising a third sidewall and a fourth sidewall located at different positions, at least a portion of the third sidewall protrudes in a direction away from the first isolation opening to form a second protruding edge; A light-emitting unit is at least partially located in the isolation opening, the light-emitting unit includes a first electrode, the light-emitting unit includes a first light-emitting unit, the first light-emitting unit is located in the first isolation opening, the first electrode of the first light-emitting unit is electrically connected to the conductive trace through the first via hole, and the orthographic projection of the first via hole on the isolation structure is located on the side of the fourth side wall away from the center of the first isolation opening.

16. The display panel according to claim 15, characterized in that: The third side wall and the fourth side wall are two side walls arranged opposite to the first isolation opening; Preferably, at least a portion of the fourth side wall is recessed toward the first isolation opening to form a second recessed edge; Preferably, the orthographic projection of the second recessed edge on the substrate surrounds at least a portion of the orthographic projection of the first via hole on the substrate; Preferably, the concave direction of the second concave edge is arranged in the same direction as the convex direction of the second convex edge; Preferably, the shape of the orthographic projection enclosed figure of the second concave edge on the substrate is the same as the shape of the orthographic projection enclosed figure of the second convex edge on the substrate; Preferably, the shape of the orthographic projection enclosed figure of the second concave edge on the substrate and the shape of the orthographic projection enclosed figure of the second convex edge on the substrate are both trapezoidal; Preferably, the isolation opening further includes a second isolation opening adjacent to the first isolation opening, and the light emitting unit further includes a second light emitting unit, and the second light emitting unit is located in the second isolation opening; The third side wall is a side wall of the first isolation opening close to the second isolation opening; Preferably, the isolation opening further includes a third isolation opening adjacent to the first isolation opening, the light emitting unit further includes a third light emitting unit, the third light emitting unit is located in the third isolation opening, and the third side wall is a side wall of the first isolation opening close to the third isolation opening.

17. An electronic device, characterized in that: The electronic device comprises the display panel according to any one of claims 1 to 16.

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