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 an array substrate, a light-emitting unit and an isolation structure, the light-emitting unit comprises a first electrode, and the light-emitting unit comprises a first light-emitting unit; isolation openings are defined by the isolation structures, the isolation openings comprise first isolation openings, and the first isolation openings are openings defined by the ends, close to one side of the array substrate, of the isolation structures; the minimum distance between the edge of the orthographic projection of the first electrode of the first light-emitting unit on the array substrate and the edge of the orthographic projection of the corresponding first isolation opening on the array substrate is a first distance, and the first distance is smaller than or equal to 1 micron. The pixel density and the pixel aperture opening ratio of the display panel can be improved, the display effect of the display panel can be improved, and the service life of the display panel can be prolonged.

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] An array substrate;

[0006] A light emitting unit located at one side of the array substrate, the light emitting unit comprising a first electrode, and the light emitting unit comprising a first light emitting unit;

[0007] An isolation structure located on a side of the film layer where the first electrode is located away from the array substrate, the isolation structure encloses an isolation opening, the isolation opening includes a first isolation opening, and the first isolation opening is an opening enclosed by an end of the isolation structure close to the array substrate;

[0008] The minimum distance between the edge of the orthographic projection of the first electrode of the first light emitting unit on the array substrate and the edge of the orthographic projection of the corresponding first isolation opening on the array substrate is a first distance, and the first distance is less than or equal to 1 μm.

[0009] In some possible implementations, the light-emitting unit further includes a second light-emitting unit adjacent to the first light-emitting unit, a minimum distance between an edge of an orthographic projection of the first electrode of the first light-emitting unit on the array substrate and an edge of an orthographic projection of the first electrode of the adjacent second light-emitting unit on the array substrate is a second distance, and a ratio of the first distance to the second distance is less than or equal to 0.67;

[0010] Preferably, the ratio of the first distance to the second distance is less than or equal to 0.4;

[0011] Preferably, the first distance is less than or equal to 0.6 μm.

[0012] In some possible embodiments, the orthographic projection pattern edge of the first electrode of the first light-emitting unit on the array substrate includes a first sub-edge, the orthographic projection edge of the first isolation opening corresponding to the first light-emitting unit on the array substrate includes a third sub-edge arranged opposite to the first sub-edge, and the extension line or tangent line of the first sub-edge and the extension line or tangent line of the third sub-edge are parallel to each other; the light-emitting unit also includes a second light-emitting unit adjacent to the first light-emitting unit, the orthographic projection pattern edge of the first electrode of the second light-emitting unit on the array substrate includes a fifth sub-edge close to the side of the first electrode of the first light-emitting unit, and the orthographic projection edge of the first isolation opening corresponding to the second light-emitting unit on the array substrate includes a sixth sub-edge arranged opposite to the fifth sub-edge; the extension line or tangent line of the fifth sub-edge and the extension line or tangent line of the sixth sub-edge are parallel to each other.

[0013] In some possible implementations, a minimum distance between an edge of an orthographic projection pattern of the first electrode of the first light-emitting unit on the array substrate and an edge of an orthographic projection pattern of a corresponding first isolation opening on the array substrate is smaller than a minimum distance between an edge of an orthographic projection pattern of the first electrode of an adjacent second light-emitting unit on the array substrate and an edge of an orthographic projection pattern of a corresponding first isolation opening on the array substrate;

[0014] Preferably, the minimum distance between the extension line or tangent line of the first sub-edge of the first electrode of the first light-emitting unit and the extension line or tangent line of the third sub-edge of the corresponding first isolation opening is smaller than the minimum distance between the extension line or tangent line of the fifth sub-edge of the first electrode of the second light-emitting unit and the extension line or tangent line of the sixth sub-edge of the corresponding first isolation opening.

[0015] In some possible embodiments, the orthographic projection of at least a portion of the first sub-edge of the first electrode of the first light-emitting unit on the array substrate is located within the orthographic projection of the corresponding first isolation opening on the array substrate, and the orthographic projection of the fifth sub-edge of the first electrode of the adjacent second light-emitting unit on the array substrate is located outside the orthographic projection of the corresponding first isolation opening on the array substrate.

[0016] In some possible embodiments, the orthographic projection of at least part of the first sub-edge of the first electrode of the first light-emitting unit on the array substrate at least partially overlaps with the orthographic projection of the corresponding first isolation opening on the array substrate, and the orthographic projection of the fifth sub-edge of the first electrode of the adjacent second light-emitting unit on the array substrate is outside the orthographic projection of the corresponding first isolation opening on the array substrate.

[0017] In some possible embodiments, the orthographic projections of the first sub-edge of the first electrode of the first light-emitting unit and the fifth sub-edge of the first electrode of the adjacent second light-emitting unit on the array substrate are both located outside the orthographic projections of the corresponding first isolation opening on the array substrate.

[0018] In some possible implementations, the orthographic projection pattern edge of the first electrode of the first light-emitting unit on the array substrate includes a first sub-edge and a second sub-edge, the orthographic projection edge of the first isolation opening corresponding to the first light-emitting unit on the array substrate includes a third sub-edge arranged opposite to the first sub-edge and a fourth sub-edge arranged opposite to the second sub-edge, an extension line or tangent line of the first sub-edge and an extension line or tangent line of the third sub-edge are parallel to each other, and an extension line or tangent line of the second sub-edge and an extension line or tangent line of the fourth sub-edge are parallel to each other;

[0019] The minimum distance between the extension line or tangent line of the first sub-edge and the extension line or tangent line of the corresponding third sub-edge is smaller than the minimum distance between the extension line or tangent line of the second sub-edge and the extension line or tangent line of the corresponding fourth sub-edge;

[0020] Preferably, the centroid of the orthographic projection pattern of the first isolation opening of the first light-emitting unit on the array substrate is offset from the centroid of the orthographic projection pattern of the first electrode of the first light-emitting unit on the array substrate.

[0021] In some possible embodiments, the orthographic projection of the second sub-edge on the array substrate is located outside the orthographic projection of the corresponding first isolation opening on the array substrate, and at least part of the orthographic projection of the first sub-edge on the array substrate is located within the orthographic projection of the corresponding first isolation opening on the array substrate.

[0022] In some possible embodiments, the orthographic projection of the second sub-edge on the array substrate is located outside the orthographic projection of the corresponding first isolation opening on the array substrate, and at least part of the orthographic projection of the first sub-edge on the array substrate at least partially overlaps with the edge of the orthographic projection of the corresponding first isolation opening on the array substrate; or, the orthographic projections of the first sub-edge and the second sub-edge on the array substrate are both located outside the orthographic projection of the corresponding first isolation opening on the array substrate.

[0023] In some possible implementations, the display panel includes a first display area and a second display area located on one side of the first display area, and the first isolation opening and the first light-emitting unit are at least located in the first display area;

[0024] Preferably, the brightness of the first display area is greater than the brightness of the second display area, and the brightness is the maximum brightness or the average brightness;

[0025] Preferably, the orthographic projection pattern edge of the first electrode of the first light-emitting unit on the array substrate includes a first sub-edge, and the orthographic projection edge of the first isolation opening corresponding to the first light-emitting unit on the array substrate includes a third sub-edge arranged opposite to the first sub-edge;

[0026] Preferably, the first isolation opening and the first light-emitting unit are located in the first display area and the second display area, and the minimum distance between the extension line or tangent line of the first sub-edge of the first electrode of the first light-emitting unit located in the first display area and the extension line or tangent line of the corresponding third sub-edge of the first isolation opening is smaller than the minimum distance between the extension line or tangent line of the first sub-edge of the first electrode of the first light-emitting unit in the second display area and the extension line or tangent line of the corresponding third sub-edge of the first isolation opening.

[0027] In some possible implementations, the present application further provides a display panel, comprising:

[0028] An array substrate;

[0029] A light emitting unit located at one side of the array substrate, the light emitting unit comprising a first electrode, and the light emitting unit comprising a first light emitting unit;

[0030] An isolation structure located on a side of the film layer where the first electrode is located away from the array substrate, the isolation structure encloses an isolation opening, the isolation opening includes a first isolation opening, and the first isolation opening is an opening enclosed by an end of the isolation structure close to the array substrate;

[0031] The orthographic projection pattern edge of the first electrode of the first light-emitting unit on the array substrate includes a first sub-edge and a second sub-edge, the orthographic projection edge of the first isolation opening on the array substrate includes a third sub-edge arranged opposite to the first sub-edge and a fourth sub-edge arranged opposite to the second sub-edge, an extension line or tangent line of the first sub-edge and an extension line or tangent line of the third sub-edge are parallel to each other, and an extension line or tangent line of the second sub-edge and an extension line or tangent line of the fourth sub-edge are parallel to each other;

[0032] The minimum distance between the extension line or tangent of the first sub-edge and the corresponding extension line or tangent of the third sub-edge is smaller than the minimum distance between the extension line or tangent of the second sub-edge and the corresponding extension line or tangent of the fourth sub-edge.

[0033] In some possible implementations, the present application further provides a display panel, comprising:

[0034] An array substrate;

[0035] A light emitting unit located at one side of the array substrate, the light emitting unit comprising a first electrode, and the light emitting unit comprising a first light emitting unit;

[0036] An isolation structure located on a side of the film layer where the first electrode is located away from the array substrate, the isolation structure encloses an isolation opening, the isolation opening includes a first isolation opening, and the first isolation opening is an opening enclosed by an end of the isolation structure close to the array substrate;

[0037] Wherein, a portion of the edge of the orthographic projection of the first electrode of the first light-emitting unit on the array substrate is located within the orthographic projection of the corresponding first isolation opening on the array substrate.

[0038] 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.

[0039] Compared with the prior art, this application has the following beneficial effects:

[0040] A display panel and an electronic device provided in the present application can reduce the pixel gap of the display panel by setting the minimum distance between the edge of the orthographic projection of the first electrode of the first light-emitting unit on the array substrate and the edge of the orthographic projection of the corresponding first isolation opening on the array substrate to be less than or equal to 1μm, thereby improving the pixel density and pixel aperture ratio of the display panel, and further improving the display effect and service life of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] 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.

[0042] Figure 1 A partial top view schematic diagram of a display panel in the related art provided by an embodiment of the present application;

[0043] Figure 2 Provided in the embodiments of this application Figure 1 Schematic cross-sectional view at AA in the middle;

[0044] Figure 3 One of the partial top view schematic diagrams of the display panel provided in the embodiment of the present application;

[0045] Figure 4 Provided in the embodiments of this application Figure 3 A schematic cross-sectional view of the middle BB;

[0046] Figure 5 A second partial top view schematic diagram of a display panel provided in an embodiment of the present application;

[0047] Figure 6 Provided in the embodiments of this application Figure 5 One of the cross-sectional views at CC in the middle;

[0048] Figure 7 A third partial top view schematic diagram of a display panel provided in an embodiment of the present application;

[0049] Figure 8 Provided in the embodiments of this application Figure 7 Schematic cross-sectional view at DD in the middle;

[0050] Fig. 9 A fourth partial top view schematic diagram of a display panel provided in an embodiment of the present application;

[0051] Fig.10 Provided in the embodiments of this application Fig. 9 A schematic cross-sectional view at EE in the middle;

[0052] Fig.11 A schematic top view of a display panel provided in an embodiment of the present application;

[0053] Fig.12 Provided in the embodiments of this application Figure 5 The second cross-sectional view at CC in the middle;

[0054] Fig.13 Provided in the embodiments of this application Figure 5 The third cross-sectional view of the CC in the middle;

[0055] Fig.14 One of the top view schematic diagrams of the first electrode and the isolation structure provided in the embodiment of the present application;

[0056] Fig.15 A second schematic top view of a first electrode and an isolation structure provided in an embodiment of the present application;

[0057] Fig.16 This is a third schematic top view of the first electrode and the isolation structure provided in an embodiment of the present application.

[0058] Figure numerals: 1. isolation structure; 101. first isolation part; 102. second isolation part; 103. third isolation part; 2. first electrode; 21. first sub-edge; 22. second sub-edge; 23. fifth sub-edge; 3. isolation opening; 301. first isolation opening; 31. third sub-edge; 32. fourth sub-edge; 33. sixth sub-edge; 4. array substrate; 5. pixel defining layer; 51. pixel opening; 6. light-emitting part; 7. second electrode; 8. light-emitting unit; 81. first light-emitting unit; 82. second light-emitting unit; 9. first encapsulation layer; 91. encapsulation unit; 10. second encapsulation layer; 11. third encapsulation layer. DETAILED DESCRIPTION

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] Improving the density of light-emitting units in a display panel (i.e., pixel density) is an important way to improve the display effect. However, the display panels currently made using the 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 functional layer and the cathode are evaporated in the entire layer, the light-emitting functional layer and the cathode 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.

[0065] Among them, patent PCT / CN2023 / 134518, patent 202310759370.2, patent 202310740412.8, patent 202310707209.0, patent 202311499823.9, patent 202310692671.8, patent 202311091555.7 and patent 202311346196.5 record relevant technical solutions of isolation structure and encapsulation layer, and their contents are incorporated into this application by reference for reference.

[0066] See also Figure 1 and Figure 2 The display panel in the related technology includes an array substrate 4, a first electrode layer located on one side of the array substrate 4, and an isolation structure 1 located on a side of the first electrode layer away from the array substrate 4, the first electrode layer includes a plurality of first electrodes 2 arranged at intervals, the isolation structure 1 encloses to form an isolation opening 3, the isolation opening 3 includes a first isolation opening 301, and the first isolation opening 301 is an opening enclosed by the end of the isolation structure 1 close to the array substrate 4.

[0067] The inventors have found through long-term research that the distance between the edges of the orthographic projections of two adjacent first electrodes 2 on the array substrate 4 and the edges of the orthographic projections of the corresponding first isolation openings 31 on the array substrate 4 is equal, that is, Figure 2 In the embodiment, L1=L2, and both L1 and L2 are relatively large. For example, when L1 and L2 are designed to be relatively large, the position of the via hole connecting the first electrode 2 with the underlying film layer can be designed more flexibly, so that in the thickness direction of the display panel, the position of the via hole of the first electrode 2 avoids the position where the first electrode 2 overlaps with the isolation structure 1, thereby avoiding the unevenness of the film layer caused by the via hole, and further preventing the isolation structure 1 from overlapping with the first electrode 2. However, both L1 and L2 are relatively large, which makes the pixel gap between the light-emitting units 8 of the display panel relatively large, which ultimately affects the pixel density and pixel aperture ratio of the display panel, thereby affecting the display effect and service life of the display panel.

[0068] 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.

[0069] See also Figure 3-Figure 4 This embodiment provides a display panel, which includes an array substrate 4, a light-emitting unit 8 and an isolation structure 1.

[0070] The array substrate 4 may include a substrate and a plurality of drive units located on one side of the substrate, and each drive unit may include one or more semiconductor switch devices. The semiconductor switch device may be formed by the cooperation of a plurality of film layers in the array substrate 4, for example, the semiconductor switch device may be a thin film transistor formed by the cooperation of a plurality of film layers.

[0071] The light-emitting unit 8 is located on one side of the array substrate 4, and the light-emitting unit 8 includes a first electrode 2, and the light-emitting unit 8 includes a first light-emitting unit 81; the isolation structure 1 is located on the side of the film layer where the first electrode is located away from the array substrate 4, and the isolation opening 3 includes a first isolation opening 301, and the first isolation opening 301 is an opening formed by the end of the isolation structure 1 close to the array substrate 4.

[0072] The minimum distance between the edge of the orthographic projection of the first electrode 2 of the first light emitting unit 81 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is the first distance D2, which is less than or equal to 1 μm.

[0073] Please see again Figure 1 and Figure 2 In the related art, the minimum distance L2 between the edge of the orthographic projection of the first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is greater than 1 μm.

[0074] In this embodiment, the first distance D2 is set to be less than or equal to 1 μm, for example, the first distance D2 may be 1 μm, 0.8 μm, 0.6 μm, 0.4 μm or 0.2 μm, etc. In this way, in order to ensure process reliability, the first distance D2 between the edge of the orthographic projection of the first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the first isolation opening 301 on the array substrate 4 is reduced while the spacing between adjacent first electrodes 2 remains unchanged, so that the width of the isolation structure 1 between two adjacent first electrodes 2 can be reduced, the pixel defining layer covering the edge of the first electrode 2 can be reduced, and the pixel gap of the display panel can be reduced and / or the pixel aperture ratio of the display panel can be increased.

[0075] Based on the above design, this embodiment reduces the pixel gap of the display panel by setting the minimum distance between the edge of the orthographic projection of the first electrode 2 of the first light-emitting unit 81 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 to be less than or equal to 1 μm, thereby improving the pixel density and pixel aperture ratio of the display panel, and further improving the display effect and service life of the display panel.

[0076] For some possible implementations, see again Figure 3-Figure 4 The light-emitting unit 8 also includes a second light-emitting unit 82 adjacent to the first light-emitting unit 81, and the minimum distance between the edge of the positive projection of the first electrode 2 of the first light-emitting unit 81 on the array substrate 4 and the edge of the positive projection of the first electrode 2 of the adjacent second light-emitting unit 82 on the array substrate 4 is a second distance W2, and the ratio of the first distance D2 to the second distance W2 is less than or equal to 0.67.

[0077] Normally, the second distance W2 between the edges of the orthographic projections of two adjacent first electrodes 2 on the array substrate 4 remains unchanged. In the related art, the ratio of the minimum distance L2 between the edge of the orthographic projection of the first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the isolation structure on the array substrate 4 on one side close to the array substrate to the second distance W2 is greater than 0.67.

[0078] In this application, the ratio of the first distance D2 to the second distance W2 is set to be less than or equal to 0.67. For example, the ratio of the first distance D2 to the second distance W2 can be 0, 0.1, 0.24, 0.3, 0.4, 0.5, 0.6, or 0.67, etc. It should be noted that when the ratio of the first distance D2 to the second distance W2 is 0, it means that at least part of the edge of the positive projection of the first electrode 2 of the first light-emitting unit 81 on the array substrate 4 coincides with the edge of the positive projection of the corresponding first isolation opening 301 on the array substrate 4. In addition, part of the edge of the positive projection of the first electrode 2 of the first light-emitting unit 81 on the array substrate 4 can also be located within the positive projection of the first isolation opening 301 on the array substrate 4. In this way, the first distance D2 between the edge of the positive projection of the first electrode 2 of the first light-emitting unit 81 on the array substrate 4 and the edge of the positive projection of the first isolation opening 301 on the array substrate 4 can be reduced.

[0079] Specifically, in some embodiments, please refer back to Figure 3 and Figure 4 , Figure 4 the minimum distance D1 between the edge of the positive projection of one of the two adjacent first electrodes 2 on the array substrate 4 and the edge of the positive projection of the corresponding first isolation opening 301 on the array substrate 4 in Figure 2 is equal to the minimum distance L1 between the edge of the positive projection of the first electrode 2 on the array substrate 4 and the edge of the positive projection of the corresponding first isolation opening 301 on the array substrate 4 in Figure 4 the first distance D2 between the edge of the positive projection of the other of the two adjacent first electrodes 2 on the array substrate 4 and the edge of the positive projection of the corresponding first isolation opening 301 on the array substrate 4 in Figure 2 is less than the minimum distance L2 between the edge of the positive projection of the first electrode 2 on the array substrate 4 and the edge of the positive projection of the corresponding first isolation opening 301 on the array substrate 4 in Figure 4 That is, D1 = L1, D2 < L2. The D1 in

[0080] In other embodiments, please refer to Figure 5 and Figure 6 , the width of the isolation structure 1 between two adjacent first electrodes 2 is shortened, so that Figure 6 the minimum distance D1 between the edge of the positive projection of one of the two adjacent first electrodes 2 on the array substrate 4 and the edge of the positive projection of the corresponding first isolation opening 301 on the array substrate 4 in Figure 2The minimum distance L1 between the edge of the orthographic projection of the first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, Figure 6 A first distance D2 between an edge of an orthographic projection of the other of the two adjacent first electrodes 2 on the array substrate 4 and an edge of an orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is less than Figure 2 The minimum distance L2 between the edge of the orthographic projection of the first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4. That is, D1 <L1,D2<L2。

[0081] In summary, the width of the isolation structure 1 between two adjacent first electrodes 2 is reduced, the distance between the orthographic projection of one of the two adjacent first electrodes 2 and the corresponding first isolation opening 301 remains unchanged, the distance between the other and the corresponding first isolation opening 301 is reduced, or the distances between the two adjacent first electrodes 2 and the corresponding first isolation opening 301 are both reduced, and the reduced sizes between the two adjacent first electrodes 2 and the corresponding first isolation opening 301 may be equal or unequal. The differentiated design of the first electrode 2 between the above light-emitting units may be set in a certain area of ​​the display panel or may be set on the entire surface of the display panel. In this way, in order to ensure process reliability, the gap between the two adjacent isolation openings 3 may be reduced and / or the opening area of ​​the isolation opening 3 may be increased while the spacing between the adjacent first electrodes 2 remains unchanged, thereby reducing the pixel gap of the display panel and / or increasing the pixel opening ratio of the display panel, and the pixel defining layer covering the edge of the first electrode 2 may be reduced, thereby improving the display effect and service life of the display panel.

[0082] For some possible implementations, see again Figure 6 The light-emitting unit 8 also includes a light-emitting portion 6 and a second electrode 7 stacked in a direction away from the array substrate 4, the light-emitting portion 6 is located on the side of the first electrode 2 away from the array substrate 4, the display panel also includes a pixel defining layer 5 located on the side of the first electrode layer away from the array substrate 4, the isolation structure 1 is located on the side of the pixel defining layer 5 away from the array substrate 4; the pixel defining layer 5 includes a pixel opening 51 exposing at least a portion of the first electrode 2, and the orthographic projection of the pixel opening 51 on the array substrate 4 is located within the orthographic projection of the isolation opening 3 on the array substrate 4.

[0083] The setting of the isolation structure 1 enables the display panel to form film layers of light-emitting units 8 of different colors in different isolation openings 3 without the need for a fine metal mask. When forming a light-emitting functional layer, the light-emitting functional layer will be separated by the isolation structure 1 to form a plurality of light-emitting portions 6 arranged at intervals. When forming a second electrode layer, the second electrode layer will be separated by the isolation structure 1 to form a plurality of second electrodes 7 arranged at intervals. The isolation structure 1 includes a conductive material. The second electrode 7 is electrically connected to the isolation structure 1. A first electrode 2, a light-emitting portion 6 and a second electrode 7 form a light-emitting unit 8. Among them, the first electrode 2 can be an anode, and the second electrode 7 can be a cathode.

[0084] In this way, different light-emitting units 8 can be made independent of each other, thereby improving the crosstalk between adjacent light-emitting units 8 and improving the display effect of the display panel. At the same time, due to the existence of the isolation structure 1, the light-emitting functional layer and the second electrode layer in the light-emitting unit 8 of each color in the display panel can be first prepared on the entire surface and then patterned, thereby eliminating the need for a fine metal mask, thereby saving the manufacturing cost of the display panel.

[0085] For some possible implementations, see again Figure 3 and Figure 4 , a ratio of the first distance D2 to the second distance W2 is less than or equal to 0.4.

[0086] For example, the ratio of the first distance D2 to the second distance W2 may be 0, 0.24, 0.25, 0.27, 0.28, 0.3, 0.35, 0.38 or 0.4, etc. In this way, the first distance D2 between the edge of the orthographic projection of the first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 may be further reduced, thereby further reducing the width of the isolation structure 1 between two adjacent first electrodes 2.

[0087] Preferably, the first distance D2 is less than or equal to 0.6 μm; for example, the first distance D2 may be 0.6 μm, 0.5 μm, 0.4 μm, 0.3 μm or 0.2 μm, etc. Thus, by further reducing the first distance D2, the width of the isolation structure 1 between two adjacent first electrodes 2 can be further reduced.

[0088] Preferably, the centroid of the orthographic projection of the first isolation opening 301 of the first light emitting unit 81 on the array substrate 4 is offset from the centroid of the orthographic projection of the first electrode 2 of the first light emitting unit 81 on the array substrate 4. In this way, the first distance D2 can be more easily reduced.

[0089] For some possible implementations, see again Figure 3 and Figure 4The orthographic projection edge of the first electrode 2 of the first light-emitting unit 81 on the array substrate 4 includes a first sub-edge 21, and the orthographic projection edge of the first isolation opening 301 corresponding to the first light-emitting unit 81 on the array substrate 4 includes a third sub-edge 31 arranged opposite to the first sub-edge 21, and the extension line or tangent line of the first sub-edge 21 and the extension line or tangent line of the third sub-edge 31 are parallel to each other; the orthographic projection edge of the first electrode 2 of the second light-emitting unit 82 on the array substrate 4 includes a fifth sub-edge 23 on the side of the first electrode close to the first light-emitting unit 81, and the orthographic projection edge of the first isolation opening 301 corresponding to the second light-emitting unit 82 on the array substrate 4 includes a sixth sub-edge 33 arranged opposite to the fifth sub-edge 23; the extension line or tangent line of the fifth sub-edge 23 and the extension line or tangent line of the sixth sub-edge 33 are parallel to each other.

[0090] The minimum distance D2 between the edge of the orthographic projection pattern of the first electrode 2 of the first light-emitting unit 81 on the array substrate 4 and the edge of the orthographic projection pattern of the corresponding first isolation opening 301 on the array substrate 4 is smaller than the minimum distance D1 between the edge of the orthographic projection pattern of the first electrode 2 of the adjacent second light-emitting unit 82 and the edge of the orthographic projection pattern of the corresponding first isolation opening 301 on the array substrate 4. In this way, in order to ensure process reliability, the gap between two adjacent isolation openings 3 can be reduced and / or the opening area of ​​the isolation opening 3 can be increased while the spacing between adjacent first electrodes 2 remains unchanged, and the pixel defining layer covering the edge of the first electrode 2 can be reduced, thereby reducing the pixel gap of the display panel and / or increasing the pixel aperture ratio of the display panel.

[0091] Preferably, see again Figure 3 and Figure 4 , the minimum distance D2 between the extension line or tangent line of the first sub-edge 21 of the first electrode 2 of the first light-emitting unit 81 and the extension line or tangent line of the third sub-edge 31 of the corresponding first isolation opening 301 is smaller than the minimum distance D1 between the extension line or tangent line of the fifth sub-edge 23 of the first electrode 2 of the second light-emitting unit 82 and the extension line or tangent line of the sixth sub-edge 33 of the corresponding first isolation opening 301.

[0092] The width of the isolation structure 1 between two adjacent first electrodes 2 is narrowed, so that the distance between the two adjacent first electrodes 2 and the corresponding first isolation opening 301 between the two adjacent first electrodes 2 is reduced. If the edge of the orthographic projection of the first electrode 2 on the array substrate 4 is located outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, the distance between the edge of the orthographic projection of the first electrode 2 on the array substrate 4 and the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is defined as greater than 0; if the edge of the orthographic projection of the first electrode 2 on the array substrate 4 is located within the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, the distance between the orthographic projection of the first electrode 2 on the array substrate 4 and the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is defined as greater than 0, or if the edge of the orthographic projection of the first electrode 2 on the array substrate 4 and the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 have an intersection position, the distance between the two at the intersection is 0.

[0093] In some embodiments, please refer again to Figure 5 and Figure 6 The orthographic projection of at least part of the first sub-edge 21 of the first electrode 2 of the first light-emitting unit 81 on the array substrate 4 is located within the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, and the orthographic projection of the fifth sub-edge 23 of the first electrode 2 of the adjacent second light-emitting unit 82 on the array substrate 4 is outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4.

[0094] That is, the orthographic projection of one of the two adjacent first electrodes 2 on the array substrate 4 is at least partially located within the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, and the orthographic projection of the other one on the array substrate 4 is at least partially located outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4. Figure 6 D1 in is greater than 0, Figure 6 D1 is less than Figure 2 L1 in Figure 6 D2 is less than Figure 2 L2 in Figure 6 The width of the isolation structure 1 between two adjacent first electrodes 2 is less than Figure 2 The width of the isolation structure 1 between two adjacent first electrodes 2 can be reduced. Figure 6 The pixel gap of the display panel is reduced and / or the pixel aperture ratio of the display panel is increased.

[0095] In other embodiments, see Figure 7 and Figure 8The orthographic projection of the first sub-edge 21 of the first electrode 2 of the first light-emitting unit 81 on the array substrate 4 at least partially overlaps with the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, and the orthographic projection of the fifth sub-edge 23 of the first electrode 2 of the adjacent second light-emitting unit 82 on the array substrate 4 is outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4.

[0096] That is, the orthographic projection of one of the two adjacent first electrodes 2 on the array substrate 4 is at least partially located outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, and the edge of the orthographic projection of the other one on the array substrate 4 at least partially overlaps with the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4. Figure 8 D1 in is greater than 0, and Figure 8 D1 is less than Figure 2 L1 in Figure 8 D2 in is 0, and Figure 8 D2 is less than Figure 2 L2 in Figure 8 The width of the isolation structure 1 between two adjacent first electrodes 2 is less than Figure 2 The width of the isolation structure 1 between two adjacent first electrodes 2 can be reduced. Figure 8 The pixel gap of the display panel is reduced and / or the pixel aperture ratio of the display panel is increased.

[0097] For some other possible implementations, see Fig. 9 and Fig.10 The orthographic projections of the first sub-edge 21 of the first electrode 2 of the first light-emitting unit 81 and the fifth sub-edge 23 of the first electrode 2 of the adjacent second light-emitting unit 82 on the array substrate 4 are both located outside the orthographic projections of the corresponding first isolation opening 301 on the array substrate 4 .

[0098] That is, the orthographic projections of two adjacent first electrodes 2 on the array substrate 4 are both located outside the orthographic projections of the corresponding first isolation openings 301 on the array substrate 4. Fig.10 D1 in is greater than 0, and Fig.10 D1 is less than Figure 2 L1 in Fig.10 D2 in is greater than 0, and Fig.10 D2 is less than Figure 2 L2 in Fig.10 The width of the isolation structure 1 between two adjacent first electrodes 2 is less than Figure 2 The width of the isolation structure 1 between two adjacent first electrodes 2 can be reduced. Fig.10 The pixel gap of the display panel is reduced and / or the pixel aperture ratio of the display panel is increased.

[0099] In the above embodiments, the orthographic projection of one of the two adjacent first electrodes 2 on the array substrate 4 is at least partially located within the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, which can increase the stability of the isolation structure 1 between the two adjacent first electrodes 2 and enable a good overlap between the second electrode 7 of the light-emitting unit 8 and the corresponding isolation structure 1.

[0100] For some possible implementations, see again Figure 5 and Figure 6 The orthographic projection pattern edge of the first electrode 2 of the first light-emitting unit 81 on the array substrate 4 also includes a second sub-edge 22, and the orthographic projection edge of the first isolation opening 301 corresponding to the first light-emitting unit 81 on the array substrate also includes a fourth sub-edge 32 arranged opposite to the second sub-edge 22, and the extension line or tangent line of the second sub-edge 22 and the extension line or tangent line of the fourth sub-edge 32 are parallel to each other. The minimum distance D2 between the extension line or tangent line of the first sub-edge 21 and the extension line or tangent line of the corresponding third sub-edge 31 is smaller than the minimum distance D3 between the extension line or tangent line of the second sub-edge 22 and the extension line or tangent line of the corresponding fourth sub-edge 32.

[0101] That is, the minimum distance D2 between the edge of the orthographic projection of a portion of the same first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is not equal to the minimum distance D3 between the edge of the orthographic projection of another portion of the first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4. That is, the minimum distance between the edge of the orthographic projection of the same first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 may be unequal at different positions.

[0102] In some implementations, see again Figure 5 and Figure 6 The orthographic projection of the second sub-edge 22 on the array substrate 4 is located outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, and at least part of the orthographic projection of the first sub-edge 21 on the array substrate 4 is located within the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4.

[0103] That is, the orthographic projection of a portion of the same first electrode 2 on the array substrate 4 is located within the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, and the orthographic projection of another portion of the first electrode 2 on the array substrate 4 is located outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4. That is, the distance between the edge of the orthographic projection of the same first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 can be greater than 0 or can be 0, such as Figure 6D2 in it is greater than or equal to 0, and D3 is greater than 0. At this time, the minimum distance between the edge of the orthographic projection of the same first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is 0. Optionally, D3 can be greater than 1μm, that is, the first electrode 2 includes a first sub-portion of the first electrode 2, and the distance between the edge of the first sub-portion of the first electrode 2 and the edge of the first isolation opening 301 is greater than 1μm, so that the position corresponding to the first sub-portion of the first electrode 2 can be connected to the underlying film layer through a via. In this way, the width of the isolation structure 1 corresponding to the first electrode 2 is reduced, and the distance between the same first electrode 2 and the corresponding first isolation opening 301 can be differentiated, which not only ensures the overlapping effect of the first electrode 2 and the isolation structure 1, but also can further reduce Figure 6 The pixel gap of the display panel is reduced and / or the pixel aperture ratio of the display panel is increased.

[0104] In other embodiments, please refer again to Figure 7 and Figure 8 The orthographic projection of the second sub-edge 22 on the array substrate 4 is located outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, and the orthographic projection of the first sub-edge 21 on the array substrate 4 at least partially overlaps with the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4.

[0105] That is, the orthographic projection of a portion of the same first electrode 2 on the array substrate 4 is outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, and the edge of the orthographic projection of another portion of the first electrode 2 on the array substrate 4 at least partially overlaps with the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4. That is, the distance between the edge of the orthographic projection of the same first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 can be greater than 0 or 0, for example Figure 8 In this way, the width of the isolation structure 1 corresponding to the first electrode 2 is reduced, and the distance between the same first electrode 2 and the corresponding first isolation opening 301 can be designed differently, thereby further reducing Figure 8 The pixel gap of the display panel is reduced and / or the pixel aperture ratio of the display panel is increased.

[0106] In some other embodiments, please refer again to Fig. 9 and Fig.10, the orthographic projections of the first sub-edge 21 and the second sub-edge 22 on the array substrate 4 are both located outside the orthographic projections of the corresponding first isolation opening 301 on the array substrate 4. That is, the orthographic projections of the same first electrode 2 on the array substrate 4 are both located outside the orthographic projections of the corresponding first isolation opening 301 on the array substrate 4. That is, the distance between the edge of the orthographic projection of the same first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is greater than 0, and the distance between the first electrode 2 and the corresponding first isolation opening 301 may be equal or unequal at different positions, for example Fig.10 D2 and D3 in the figure are both greater than 0, and D2 and D3 may be equal or unequal, and at least one of D2 and D3 is less than 1 μm, that is, the minimum distance between the edge of the orthographic projection of the same first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is less than 1 μm. Optionally, one of D2 and D3 is reduced, and the other of D2 and D3 remains unchanged. Specifically, D3 may be greater than 1 μm, that is, the first electrode 2 includes a first sub-portion of the first electrode 2, and the distance between the edge of the first sub-portion of the first electrode 2 and the edge of the first isolation opening 301 is greater than 1 μm, so that the position corresponding to the first sub-portion of the first electrode 2 can be connected to the underlying film layer through a via. In this way, the width of the isolation structure 1 corresponding to the first electrode 2 is reduced, and the distance between the same first electrode 2 and the corresponding first isolation opening 301 can be designed differently, which not only ensures the overlapping effect of the first electrode 2 and the isolation structure 1, but also can further reduce Fig.10 The pixel gap of the display panel is reduced and / or the pixel aperture ratio of the display panel is increased.

[0107] The above solution of differentially designing the distance between the same first electrode 2 and the corresponding first isolation opening 301 can be applied to a certain light-emitting unit, and can also be applied to all light-emitting units of the display panel.

[0108] For some possible implementations, see again Fig.10 The minimum distance W1 between the orthographic projections of two adjacent first isolation openings 301 on the array substrate 4 is less than 4 μm. Optionally, the minimum distance W1 is greater than 1 μm. For example, the minimum distance W1 may be 1 μm, 2 μm, 2.5 μm, 3 μm, 3.5 μm or 4 μm.

[0109] Preferably, the second distance W2 is greater than or equal to 1.5 μm and less than or equal to 2.5 μm. For example, the second distance W2 may be 1.5 μm, 1.8 μm, 2 μm, 2.3 μm or 2.5 μm.

[0110] Reasonable setting of the minimum distance W1 and the second distance W2 can not only reduce the pixel gap of the display panel and / or increase the pixel aperture ratio of the display panel, but also make the isolation structure 1 between two adjacent first electrodes 2 more stable.

[0111] For some possible implementations, see Figure 3 and Fig.11 The display panel includes a first display area AA1 and a second display area AA2 located at one side of the first display area AA1, and the first isolation opening 301 and the first light emitting unit 81 are at least located in the first display area AA1.

[0112] Preferably, the brightness of the first display area AA1 is greater than the brightness of the second display area AA2, wherein the brightness is a maximum brightness or an average brightness.

[0113] Preferably, the first isolation opening 301 and the first light-emitting unit 81 are located in the first display area AA1 and the second display area AA2, and the minimum distance between the extension line or tangent line of the first sub-edge 21 of the first electrode 2 of the first light-emitting unit 81 located in the first display area AA1 and the extension line or tangent line of the corresponding third sub-edge 31 of the first isolation opening 301 is smaller than the minimum distance between the extension line or tangent line of the first sub-edge 21 of the first electrode 2 of the first light-emitting unit 81 located in the second display area AA2 and the extension line or tangent line of the corresponding third sub-edge 31 of the first isolation opening 301.

[0114] When certain areas of the display panel need to draw the public's attention, the minimum distance between the edge of the orthographic projection of the first electrode 2 in the light-emitting unit in the area on the array substrate 4 and the edge of the corresponding first isolation opening 301 can be reduced. For example, when a special icon is set in the first display area AA1, the minimum distance between the edge of the orthographic projection of the first electrode 2 in the light-emitting unit displaying the icon on the array substrate 4 and the edge of the corresponding first isolation opening 301 can be reduced. In this way, the pixel density of the first display area AA1 can be increased, thereby increasing the brightness of the first display area AA1.

[0115] For some possible implementations, see Fig.12 The display panel also includes a first packaging layer 9 located on the side of the second electrode 7 away from the array substrate 4. The first packaging layer 9 includes a plurality of packaging units 91 arranged at intervals. At least some of the packaging units 91 extend from the side of the isolation structure 1 to the side of the isolation structure 1 away from the array substrate 4. The side of the isolation structure 1 is the surface of the isolation structure 1 facing the isolation opening 3. The packaging units 91 are arranged at intervals on the side of the isolation structure 1 away from the array substrate 4. There is a gap between the packaging units 91 located on the side of the isolation structure 1 away from the array substrate 4 and the side of the isolation structure 1 away from the array substrate 4.

[0116] During the patterning process of the light-emitting unit 8 , the first encapsulation layer 9 is disconnected at the isolation structure 1 to form an encapsulation unit 91 . The encapsulation unit 91 can completely and independently encapsulate the corresponding light-emitting unit 8 , thereby improving the display characteristics of the display panel.

[0117] Preferably, see Fig.13 The display panel also includes a second encapsulation layer 10 located on a side of the first encapsulation layer 9 away from the array substrate 4 and a third encapsulation layer 11 located on a side of the second encapsulation layer 10 away from the array substrate 4. The materials of the first encapsulation layer 9 and the third encapsulation layer 11 both include inorganic materials, and the material of the second encapsulation layer 10 includes organic materials.

[0118] For example, the first encapsulation layer 9 and the third encapsulation layer 11 can be formed by chemical vapor deposition (CVD), and the second encapsulation layer 10 can be formed by inkjet printing (IJP). The second encapsulation layer 10 and the third encapsulation layer 11 can provide a better encapsulation effect on the light-emitting unit 8, thereby further improving the encapsulation quality of the display panel.

[0119] For some possible implementations, see again Fig.12 The isolation structure 1 includes a first isolation portion 101 and a second isolation portion 102 which are sequentially stacked in a direction away from the array substrate 4. The orthographic projection of the side of the first isolation portion 101 away from the array substrate 4 on the array substrate 4 is located within the orthographic projection of the second isolation portion 102 on the array substrate 4. The second electrode 7 is electrically connected to the first isolation portion 101. The first isolation portion 101 includes a conductive material. The second electrode 7 corresponding to the light emitting unit 8 extends to contact with the side wall of the first isolation portion 101, so as to realize the electrical connection between the second electrode 7 corresponding to the light emitting unit 8 and the first isolation portion 101.

[0120] Please see again Fig.13 The isolation structure 1 also includes a third isolation portion 103 located on the side of the first isolation portion 101 facing the array substrate 4, the second electrode 7 is electrically connected to the third isolation portion 103, the isolating third isolation portion 103 includes a conductive material, and the second electrode 7 corresponding to the light-emitting unit 8 extends to contact the side wall of the third isolation portion 103 to achieve electrical connection between the second electrode 7 corresponding to the light-emitting unit 8 and the third isolation portion 103.

[0121] Specifically, the material of the third isolation part 103 includes molybdenum metal; and / or, the material of the first isolation part 101 includes aluminum metal; and / or, the material of the second isolation part 102 includes titanium metal. In this way, when the isolation structure 1 separates the second electrode layer into the second electrode 7, the second electrode 7 is more easily electrically connected to the first isolation part 101 and / or the third isolation part 103.

[0122] In some possible implementations, the present application further provides a display panel, which includes an array substrate 4 , a light-emitting unit 8 and an isolation structure 1 .

[0123] The light-emitting unit 8 is located on one side of the array substrate 4, and the light-emitting unit 8 includes a first electrode 2, and the light-emitting unit 8 includes a first light-emitting unit 81; the isolation structure 1 encloses an isolation opening 3, and the isolation opening 3 includes a first isolation opening 301, and the first isolation opening 301 is an opening enclosed by the end of the isolation structure 1 close to the array substrate 4.

[0124] Among them, the orthographic projection graphic edge of the first electrode 2 of the first light-emitting unit 81 on the array substrate 4 includes a first sub-edge 21 and a second sub-edge 22, the orthographic projection edge of the first isolation opening 301 on the array substrate 4 includes a third sub-edge 31 arranged opposite to the first sub-edge 21 and a fourth sub-edge 32 arranged opposite to the second sub-edge 22, the extension line or tangent line of the first sub-edge 21 and the extension line or tangent line of the third sub-edge 31 are parallel to each other, and the extension line or tangent line of the second sub-edge 22 and the extension line or tangent line of the fourth sub-edge 32 are parallel to each other.

[0125] The minimum distance between the extension line or tangent line of the first sub-edge 21 and the extension line or tangent line of the corresponding third sub-edge 31 is smaller than the minimum distance between the extension line or tangent line of the second sub-edge 22 and the extension line or tangent line of the corresponding fourth sub-edge 32 .

[0126] If the orthographic projection of the first electrode 2 on the array substrate 4 is located outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, then the distance between the edge of the orthographic projection of the first electrode 2 on the array substrate 4 and the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is defined to be greater than 0; if at least part of the edge of the orthographic projection of the first electrode 2 on the array substrate 4 is located within the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, then the distance between the orthographic projection of the first electrode 2 on the array substrate 4 and the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is defined to be greater than 0, or at the intersection of the orthographic projections of the first electrode 2 and the first isolation opening 301 on the array substrate 4, the distance between the two is equal to 0.

[0127] In some embodiments, please refer again to Figure 5 and Figure 6 The orthographic projection of the second sub-edge 22 on the array substrate 4 is located outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 , and the orthographic projection of the first sub-edge 21 on the array substrate 4 is located inside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 .

[0128] That is, the orthographic projection of a portion of the same first electrode 2 on the array substrate 4 is located outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, and the orthographic projection of another portion of the first electrode 2 on the array substrate 4 is located inside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4. That is, the distance between the edge of the orthographic projection of the same first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 can be greater than 0 or 0, for example Figure 6 D2 is greater than or equal to 0, and D3 is greater than 0. At this time, the minimum distance between the edge of the orthographic projection of the same first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is 0. Optionally, D3 can be greater than 1μm, that is, the first electrode 2 includes a first sub-portion of the first electrode 2, and the distance between the edge of the first sub-portion of the first electrode 2 and the edge of the first isolation opening 301 is greater than 1μm, so that the position corresponding to the first sub-portion of the first electrode 2 can be connected to the underlying film layer through a via. In this way, the width of the isolation structure 1 corresponding to the first electrode 2 is reduced, and the distance between the same first electrode 2 and the corresponding first isolation opening 301 can be designed differently, which not only ensures the overlap effect of the first electrode 2 and the isolation structure 1, but also further reduces Figure 6 The pixel gap of the display panel is reduced and / or the pixel aperture ratio of the display panel is increased.

[0129] In other embodiments, see Figure 7 and Figure 8 The orthographic projection of the second sub-edge 22 on the array substrate 4 is located outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, and the orthographic projection of the first sub-edge 21 on the array substrate 4 at least partially overlaps with the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4.

[0130] That is, the orthographic projection of a portion of the same first electrode 2 on the array substrate 4 is outside the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4, and the edge of the orthographic projection of another portion of the first electrode 2 on the array substrate 4 at least partially overlaps with the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4. That is, the distance between the edge of the orthographic projection of the same first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 can be positive or zero, for example Figure 8D2 is 0, and D3 is greater than 0. That is, the minimum distance between the edge of the orthographic projection of the same first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is 0. Optionally, D2 is 0 and D3 remains unchanged. Specifically, D3 may be greater than 1μm, that is, the first electrode 2 includes a first sub-portion of the first electrode 2, and the distance between the edge of the first sub-portion of the first electrode 2 and the edge of the first isolation opening 301 is greater than 1μm, so that the position corresponding to the first sub-portion of the first electrode 2 can be connected to the underlying film layer through a via. In this way, the width of the isolation structure 1 corresponding to the first electrode 2 is reduced, and the distance between the same first electrode 2 and the corresponding first isolation opening 301 can be differentiated, which not only ensures the overlapping effect of the first electrode 2 and the isolation structure 1, but also can further reduce Figure 8 The pixel gap of the display panel is reduced and / or the pixel aperture ratio of the display panel is increased.

[0131] For some other possible implementations, see Fig. 9 and Fig.10 The orthographic projections of the first sub-edge 21 and the second sub-edge 22 on the array substrate 4 are both located outside the orthographic projections of the corresponding first isolation opening 301 on the array substrate 4 .

[0132] That is, the orthographic projections of two adjacent first electrodes 2 on the array substrate 4 are both located outside the orthographic projections of the corresponding first isolation openings 301 on the array substrate 4. That is, the orthographic projections of the same first electrode 2 on the array substrate 4 are both located inside the orthographic projections of the corresponding first isolation openings 301 on the array substrate 4. That is, the distance between the edge of the orthographic projection of the same first electrode 2 on the array substrate 4 and the edge of the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 is greater than 0, and the distance between the first electrode 2 and the corresponding first isolation opening 301 may be equal or unequal at different positions, for example Fig.10 In this way, the width of the isolation structure 1 corresponding to the first electrode 2 is reduced, and the distance between the same first electrode 2 and the corresponding first isolation opening 301 can be designed differently, thereby further reducing Fig.10 The pixel gap of the display panel is reduced and / or the pixel aperture ratio of the display panel is increased.

[0133] The above solution of differentially designing the distance between the same first electrode 2 and the corresponding first isolation opening 301 can be applied to a certain light-emitting unit, and can also be applied to all light-emitting units of the display panel.

[0134] In some possible implementations, the present application further provides a display panel, which includes an array substrate 4 , a light-emitting unit 8 and an isolation structure 1 .

[0135] The light-emitting unit 8 is located on one side of the array substrate 4, and the light-emitting unit 8 includes a first electrode 2, and the light-emitting unit 8 includes a first light-emitting unit 81; the isolation structure 1 encloses an isolation opening 3, and the isolation opening 3 includes a first isolation opening 301, and the first isolation opening 301 is an opening enclosed by the end of the isolation structure 1 close to the array substrate 4.

[0136] Part of the edge of the orthographic projection of the first electrode 2 of the first light-emitting unit 81 on the array substrate 4 is located within the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4 .

[0137] The width of the isolation structure 1 between the first electrodes 2 is reduced so that a portion of the edge of the orthographic projection of the first electrode 2 on the array substrate 4 is located within the orthographic projection of the corresponding first isolation opening 301 on the array substrate 4. In this way, in order to ensure process reliability, the gap between two adjacent isolation openings 3 can be reduced and / or the opening area of ​​the isolation opening 3 can be increased while the spacing between adjacent first electrodes 2 remains unchanged, thereby reducing the pixel gap of the display panel and / or increasing the pixel aperture ratio of the display panel, and the pixel defining layer covering the edge of the first electrode 2 can be reduced, thereby improving the display effect and service life of the display panel.

[0138] In the above embodiments, the shape of the isolation structure 1 can also be set as follows Figure 14-16 The shape shown in the figure can thereby allow the isolation opening 3 to be set to different shapes, thereby allowing the solution in the above embodiment to be applied to light-emitting units 8 of different shapes.

[0139] 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 includes the display panel of the present application, the pixel gap of the electronic device can be reduced and / or the pixel aperture ratio of the electronic device can be increased, thereby improving the display effect and service life of the electronic device.

[0140] 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.

[0141] 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: An array substrate; A light emitting unit located at one side of the array substrate, the light emitting unit comprising a first electrode, and the light emitting unit comprising a first light emitting unit; An isolation structure located on a side of the film layer where the first electrode is located away from the array substrate, the isolation structure encloses an isolation opening, the isolation opening includes a first isolation opening, and the first isolation opening is an opening enclosed by an end of the isolation structure close to the array substrate; The minimum distance between the edge of the orthographic projection of the first electrode of the first light emitting unit on the array substrate and the edge of the orthographic projection of the corresponding first isolation opening on the array substrate is a first distance, and the first distance is less than or equal to 1 μm.

2. The display panel according to claim 1, characterized in that: The light-emitting unit further includes a second light-emitting unit adjacent to the first light-emitting unit, a minimum distance between an edge of an orthographic projection of the first electrode of the first light-emitting unit on the array substrate and an edge of an orthographic projection of the first electrode of the adjacent second light-emitting unit on the array substrate is a second distance, and a ratio of the first distance to the second distance is less than or equal to 0.67; Preferably, the ratio of the first distance to the second distance is less than or equal to 0.4; Preferably, the first distance is less than or equal to 0.6 μm.

3. The display panel according to claim 1, characterized in that: The orthographic projection pattern edge of the first electrode of the first light-emitting unit on the array substrate includes a first sub-edge, the orthographic projection edge of the first isolation opening corresponding to the first light-emitting unit on the array substrate includes a third sub-edge arranged opposite to the first sub-edge, and the extension line or tangent line of the first sub-edge and the extension line or tangent line of the third sub-edge are parallel to each other; the light-emitting unit also includes a second light-emitting unit adjacent to the first light-emitting unit, the orthographic projection pattern edge of the first electrode of the second light-emitting unit on the array substrate includes a fifth sub-edge on a side close to the first electrode of the first light-emitting unit, and the orthographic projection edge of the first isolation opening corresponding to the second light-emitting unit on the array substrate includes a sixth sub-edge arranged opposite to the fifth sub-edge; the extension line or tangent line of the fifth sub-edge and the extension line or tangent line of the sixth sub-edge are parallel to each other.

4. The display panel according to claim 3, characterized in that: The minimum distance between the edge of the orthographic projection pattern of the first electrode of the first light-emitting unit on the array substrate and the edge of the orthographic projection pattern of the corresponding first isolation opening on the array substrate is smaller than the minimum distance between the edge of the orthographic projection pattern of the first electrode of the adjacent second light-emitting unit on the array substrate and the edge of the orthographic projection pattern of the corresponding first isolation opening on the array substrate; Preferably, the minimum distance between the extension line or tangent line of the first sub-edge of the first electrode of the first light-emitting unit and the extension line or tangent line of the third sub-edge of the corresponding first isolation opening is smaller than the minimum distance between the extension line or tangent line of the fifth sub-edge of the first electrode of the second light-emitting unit and the extension line or tangent line of the sixth sub-edge of the corresponding first isolation opening.

5. The display panel according to claim 3, characterized in that: The orthographic projection of at least a portion of the first sub-edge of the first electrode of the first light-emitting unit on the array substrate is located within the orthographic projection of the corresponding first isolation opening on the array substrate, and the orthographic projection of the fifth sub-edge of the first electrode of the adjacent second light-emitting unit on the array substrate is located outside the orthographic projection of the corresponding first isolation opening on the array substrate.

6. The display panel according to claim 3, characterized in that: The orthographic projection of at least part of the first sub-edge of the first electrode of the first light-emitting unit on the array substrate at least partially overlaps with the orthographic projection of the corresponding first isolation opening on the array substrate, and the orthographic projection of the fifth sub-edge of the first electrode of the adjacent second light-emitting unit on the array substrate is outside the orthographic projection of the corresponding first isolation opening on the array substrate.

7. The display panel according to claim 3, characterized in that: The orthographic projections of the first sub-edge of the first electrode of the first light-emitting unit and the fifth sub-edge of the first electrode of the adjacent second light-emitting unit on the array substrate are both located outside the orthographic projections of the corresponding first isolation openings on the array substrate.

8. The display panel according to claim 1, characterized in that: The orthographic projection pattern edge of the first electrode of the first light-emitting unit on the array substrate includes a first sub-edge and a second sub-edge, the orthographic projection edge of the first isolation opening corresponding to the first light-emitting unit on the array substrate includes a third sub-edge arranged opposite to the first sub-edge and a fourth sub-edge arranged opposite to the second sub-edge, an extension line or tangent line of the first sub-edge and an extension line or tangent line of the third sub-edge are parallel to each other, and an extension line or tangent line of the second sub-edge and an extension line or tangent line of the fourth sub-edge are parallel to each other; The minimum distance between the extension line or tangent line of the first sub-edge and the extension line or tangent line of the corresponding third sub-edge is smaller than the minimum distance between the extension line or tangent line of the second sub-edge and the extension line or tangent line of the corresponding fourth sub-edge; Preferably, the centroid of the orthographic projection pattern of the first isolation opening of the first light-emitting unit on the array substrate is offset from the centroid of the orthographic projection pattern of the first electrode of the first light-emitting unit on the array substrate.

9. The display panel according to claim 8, characterized in that: The orthographic projection of the second sub-edge on the array substrate is outside the orthographic projection of the corresponding first isolation opening on the array substrate, and at least part of the orthographic projection of the first sub-edge on the array substrate is inside the orthographic projection of the corresponding first isolation opening on the array substrate.

10. The display panel according to claim 8, characterized in that: The orthographic projection of the second sub-edge on the array substrate is outside the orthographic projection of the corresponding first isolation opening on the array substrate, and at least a portion of the orthographic projection of the first sub-edge on the array substrate at least partially overlaps with an edge of the orthographic projection of the corresponding first isolation opening on the array substrate; Alternatively, the orthographic projections of the first sub-edge and the second sub-edge on the array substrate are both located outside the orthographic projections of the corresponding first isolation opening on the array substrate.

11. The display panel according to claim 1, characterized in that: The display panel includes a first display area and a second display area located on one side of the first display area, and the first isolation opening and the first light emitting unit are at least located in the first display area; Preferably, the brightness of the first display area is greater than the brightness of the second display area, and the brightness is the maximum brightness or the average brightness; Preferably, the orthographic projection pattern edge of the first electrode of the first light-emitting unit on the array substrate includes a first sub-edge, and the orthographic projection edge of the first isolation opening corresponding to the first light-emitting unit on the array substrate includes a third sub-edge arranged opposite to the first sub-edge; Preferably, the first isolation opening and the first light-emitting unit are located in the first display area and the second display area, and the minimum distance between the extension line or tangent line of the first sub-edge of the first electrode of the first light-emitting unit located in the first display area and the extension line or tangent line of the corresponding third sub-edge of the first isolation opening is smaller than the minimum distance between the extension line or tangent line of the first sub-edge of the first electrode of the first light-emitting unit in the second display area and the extension line or tangent line of the corresponding third sub-edge of the first isolation opening.

12. The display panel according to any one of claims 1 to 11, characterized in that: The minimum distance between the orthographic projections of two adjacent first isolation openings on the array substrate is less than 4 μm; Preferably, the minimum distance between the orthographic projections of two adjacent first isolation openings on the array substrate is greater than 1 μm; Preferably, the light-emitting unit also includes a second light-emitting unit adjacent to the first light-emitting unit, and the minimum distance between the edge of the positive projection of the first electrode of the first light-emitting unit on the array substrate and the first electrode of the adjacent second light-emitting unit is a second distance, and the second distance is greater than or equal to 1.5 μm and less than or equal to 2.5 μm.

13. The display panel according to any one of claims 1 to 11, characterized in that: The light-emitting unit further comprises a light-emitting portion and a second electrode which are sequentially stacked on a side away from the array substrate, the light-emitting portion is located on a side of the first electrode away from the array substrate, and the second electrode is electrically connected to the isolation structure; Preferably, the isolation structure comprises a first isolation portion and a second isolation portion which are sequentially stacked in a direction away from the array substrate, and an orthographic projection of the first isolation portion on the array substrate is located within an orthographic projection of the second isolation portion on the array substrate; Preferably, the isolation structure further comprises a third isolation portion located on a side of the first isolation portion facing the array substrate, and the second electrode is electrically connected to the third isolation portion; Preferably, the display panel further comprises a pixel defining layer located on a side of the first electrode away from the array substrate, and the isolation structure is located on a side of the pixel defining layer away from the array substrate; the pixel defining layer comprises a pixel opening exposing at least a portion of the first electrode; Preferably, the orthographic projection of the pixel opening on the array substrate is located within the orthographic projection of the isolation opening on the array substrate; 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. The display panel according to claim 13, characterized in that: The display panel further comprises a first encapsulation layer located on a side of the second electrode away from the array substrate, the first encapsulation layer comprising a plurality of encapsulation units arranged at intervals, at least some of the encapsulation units extending from a side of the isolation structure to a side of the isolation structure away from the array substrate, and the side of the isolation structure is a surface of the isolation structure facing the isolation opening; Preferably, the packaging unit is arranged at intervals on a side of the isolation structure away from the array substrate; Preferably, there is a gap between the packaging unit located on the side of the isolation structure away from the array substrate and the surface of the isolation structure on the side away from the array substrate; Preferably, the display panel further comprises a second encapsulation layer located on a side of the first encapsulation layer away from the array substrate and a third encapsulation layer located on a side of the second encapsulation layer away from the array 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.

15. A display panel, characterized in that: The display panel comprises: An array substrate; A light emitting unit located at one side of the array substrate, the light emitting unit comprising a first electrode, and the light emitting unit comprising a first light emitting unit; An isolation structure located on a side of the film layer where the first electrode is located away from the array substrate, the isolation structure encloses an isolation opening, the isolation opening includes a first isolation opening, and the first isolation opening is an opening enclosed by an end of the isolation structure close to the array substrate; The orthographic projection pattern edge of the first electrode of the first light-emitting unit on the array substrate includes a first sub-edge and a second sub-edge, the orthographic projection edge of the first isolation opening on the array substrate includes a third sub-edge arranged opposite to the first sub-edge and a fourth sub-edge arranged opposite to the second sub-edge, an extension line or tangent line of the first sub-edge and an extension line or tangent line of the third sub-edge are parallel to each other, and an extension line or tangent line of the second sub-edge and an extension line or tangent line of the fourth sub-edge are parallel to each other; The minimum distance between the extension line or tangent of the first sub-edge and the corresponding extension line or tangent of the third sub-edge is smaller than the minimum distance between the extension line or tangent of the second sub-edge and the corresponding extension line or tangent of the fourth sub-edge.

16. The display panel according to claim 15, characterized in that: The orthographic projection of the second sub-edge on the array substrate is outside the orthographic projection of the corresponding first isolation opening on the array substrate, and at least part of the orthographic projection of the first sub-edge on the array substrate is inside the orthographic projection of the corresponding first isolation opening on the array substrate.

17. The display panel according to claim 15, characterized in that: The orthographic projection of the second sub-edge on the array substrate is outside the orthographic projection of the corresponding first isolation opening on the array substrate, and the orthographic projection of the first sub-edge on the array substrate at least partially overlaps with the edge of the orthographic projection of the corresponding first isolation opening on the array substrate; Alternatively, the orthographic projections of the first sub-edge and the second sub-edge on the array substrate are both located outside the orthographic projections of the corresponding first isolation opening on the array substrate; Preferably, the centroid of the orthographic projection pattern of the first isolation opening of the first light-emitting unit on the array substrate is offset from the centroid of the orthographic projection pattern of the first electrode of the first light-emitting unit on the array substrate.

18. A display panel, characterized in that: The display panel comprises: An array substrate; A light emitting unit located at one side of the array substrate, the light emitting unit comprising a first electrode, and the light emitting unit comprising a first light emitting unit; An isolation structure located on a side of the film layer where the first electrode is located away from the array substrate, the isolation structure encloses an isolation opening, the isolation opening includes a first isolation opening, and the first isolation opening is an opening enclosed by an end of the isolation structure close to the array substrate; Wherein, a portion of the edge of the orthographic projection of the first electrode of the first light-emitting unit on the array substrate is located within the orthographic projection of the corresponding first isolation opening on the array substrate.

19. The display panel according to claim 18, characterized in that: The edge of the orthographic projection pattern of the first electrode of the first light-emitting unit on the array substrate includes a first sub-edge and a second sub-edge, the edge of the orthographic projection of the first isolation opening on the substrate includes a third sub-edge arranged opposite to the first sub-edge and a fourth sub-edge arranged opposite to the second sub-edge, and the first sub-edge is located on the side of the third sub-edge opposite to the centroid of the orthographic projection pattern of the first isolation opening on the array substrate; Preferably, the second sub-edge is located on a side of the centroid of the orthographic projection pattern of the first isolation opening on the array substrate, which is opposite to the fourth sub-edge; Preferably, the extension line or tangent line of the first sub-edge is parallel to the extension line or tangent line of the third sub-edge, and the extension line or tangent line of the second sub-edge is parallel to the extension line or tangent line of the fourth sub-edge; The minimum distance between the extension line or tangent of the first sub-edge and the corresponding extension line or tangent of the third sub-edge is smaller than the minimum distance between the extension line or tangent of the second sub-edge and the corresponding extension line or tangent of the fourth sub-edge.

20. An electronic device, characterized in that: The electronic device comprises the display panel according to any one of claims 1-19.

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