Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel comprises a substrate, an isolation structure arranged on one side of the substrate and enclosing an isolation opening, the isolation opening having opposite first and second inner wall surfaces, a light-emitting layer comprising a light-emitting unit located in the isolation opening, and a first electrode layer comprising a first electrode arranged on the side of the light-emitting unit away from the substrate, the overlap area between the first electrode and the first inner wall surface in at least part of the isolation opening being greater than the overlap area between the first electrode and the second inner wall surface. The display panel provided by the application has good working stability.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of display, and particularly relates to a display panel and a display device. BACKGROUND

[0002] Organic light emitting diodes (OLED) and flat panel display devices based on light emitting diode (LED) technology have been widely applied to mobile phones, televisions, notebook computers, desktop computers and other consumer electronic products due to their high image quality, power saving, thin body and wide application range, and have become the mainstream of display devices.

[0003] However, the process performance of the current OLED display product needs to be improved. SUMMARY

[0004] Embodiments of the present application provide a display panel and a display device, aiming to improve the working stability of the display panel.

[0005] An embodiment of the first aspect of the present application provides a display panel, comprising: a substrate; an isolation structure arranged on one side of the substrate and enclosing a separate opening, the separate opening having opposite first and second inner wall surfaces; a light emitting layer comprising a light emitting unit located in the separate opening; and a first electrode layer comprising a first electrode arranged on a side of the light emitting unit away from the substrate, wherein the overlap area between the first electrode and the first inner wall surface in at least part of the separate opening is greater than the overlap area between the first electrode and the second inner wall surface.

[0006] According to the embodiment of the first aspect of the present application, the overlap area between the light emitting unit and the first inner wall surface in at least part of the separate opening is smaller than the overlap area between the light emitting unit and the second inner wall surface.

[0007] According to any one of the preceding embodiments of the first aspect of the present application, at least part of the light emitting units overlap with both the first and second inner wall surfaces, and / or at least part of the light emitting units are arranged apart from the first inner wall surface and overlap with the second inner wall surface.

[0008] According to any one of the preceding embodiments of the first aspect of the present application, the orthographic projection of the light emitting unit on the substrate is located within the orthographic projection range of the first electrode layer on the substrate.

[0009] According to any one of the preceding embodiments of the first aspect of the application, the light-emitting unit comprises a middle portion and first and second edge portions disposed on opposite sides of the middle portion, at least part of the first edge portion of the light-emitting unit is in abutment with the first inner wall surface, and at least part of the second edge portion is in abutment with the second inner wall surface, the minimum distance between the orthogonal projection of the edge of the first edge portion on the substrate away from the middle portion and the orthogonal projection of the edge of the first inner wall surface facing the isolation opening on the substrate is a first distance, the minimum distance between the orthogonal projection of the edge of the second edge portion on the substrate away from the middle portion and the orthogonal projection of the edge of the second inner wall surface facing the isolation opening on the substrate is a second distance, and the first distance is less than the second distance; and / or, at least part of the first edge portion of the light-emitting unit is spaced apart from the first inner wall surface, and at least part of the second edge portion is in abutment with the second inner wall surface.

[0010] According to any one of the preceding embodiments of the first aspect of the application, the isolation opening comprises first and second openings, the light-emitting unit comprises first-type light-emitting units disposed corresponding to the first opening and second-type light-emitting units disposed corresponding to the second opening, the average thickness of the first-type light-emitting units is greater than the average thickness of the second-type light-emitting units, and the second edge portion of the first-type light-emitting units and the second edge portion of the second-type light-emitting units are both in abutment with the second inner wall surface, the abutment area between the first-type light-emitting units and the second inner wall surface is greater than the abutment area between the second-type light-emitting units and the second inner wall surface.

[0011] According to any one of the preceding embodiments of the first aspect of the application, the minimum distance between the orthogonal projection of the edge of the second edge portion of the first-type light-emitting units on the substrate away from the middle portion and the orthogonal projection of the edge of the second inner wall surface facing the isolation opening on the substrate is a third sub-distance, and the minimum distance between the orthogonal projection of the edge of the second edge portion of the second-type light-emitting units on the substrate away from the middle portion and the orthogonal projection of the edge of the second inner wall surface facing the isolation opening on the substrate is a fourth sub-distance, and the third sub-distance is greater than the fourth sub-distance.

[0012] According to any one of the preceding embodiments of the first aspect of the application, the height of the second edge portion of the first-type light-emitting units extending to the second inner wall surface is greater than the height of the second edge portion of the second-type light-emitting units extending to the second inner wall surface.

[0013] According to any one of the preceding embodiments of the first aspect of the application, the first edge portion of the first type of light emitting unit and the first edge portion of the second type of light emitting unit both overlap the first inner wall surface, the minimum distance between the orthogonal projection on the substrate of the edge of the first edge portion of the first type of light emitting unit away from the side of the intermediate portion and the orthogonal projection on the substrate of the edge of the first inner wall surface facing the side of the isolation opening is a first sub-distance, the minimum distance between the orthogonal projection on the substrate of the edge of the first edge portion of the second type of light emitting unit away from the side of the intermediate portion and the orthogonal projection on the substrate of the edge of the first inner wall surface facing the side of the isolation opening is a second sub-distance, the first sub-distance is smaller than the second sub-distance; or, the first edge portion of the first type of light emitting unit is arranged spaced apart from the first inner wall surface, and the first edge portion of the second type of light emitting unit overlaps the first inner wall surface; or, the first edge portion of the first type of light emitting unit and the first edge portion of the second type of light emitting unit both are arranged spaced apart from the first inner wall surface, and the minimum distance between the first edge portion of the first type of light emitting unit and the first inner wall surface is greater than the minimum distance between the first edge portion of the second type of light emitting unit and the first inner wall surface.

[0014] According to any one of the preceding embodiments of the first aspect of the application, the isolation opening further comprises a third opening, the light emitting units comprise a third type of light emitting unit arranged corresponding to the third opening, the average thickness of the third type of light emitting unit is smaller than the average thickness of the first type of light emitting unit, and the average thickness of the third type of light emitting unit is greater than the average thickness of the second type of light emitting unit, the second edge portion of the first type of light emitting unit, the second edge portion of the second type of light emitting unit and the second edge portion of the third type of light emitting unit all overlap the second inner wall surface, the overlapping area between the third type of light emitting unit and the second inner wall surface is smaller than the overlapping area between the first type of light emitting unit and the second inner wall surface, and the overlapping area between the third type of light emitting unit and the second inner wall surface is greater than the overlapping area between the second type of light emitting unit and the second inner wall surface.

[0015] According to any one of the preceding embodiments of the first aspect of the application, the minimum distance between the orthogonal projection on the substrate of the edge of the second edge portion of the first type of light emitting unit away from the side of the intermediate portion and the orthogonal projection on the substrate of the edge of the second inner wall surface facing the side of the isolation opening is a third sub-distance, the minimum distance between the orthogonal projection on the substrate of the edge of the second edge portion of the second type of light emitting unit away from the side of the intermediate portion and the orthogonal projection on the substrate of the edge of the second inner wall surface facing the side of the isolation opening is a fourth sub-distance, the minimum distance between the orthogonal projection on the substrate of the edge of the second edge portion of the third type of light emitting unit away from the side of the intermediate portion and the orthogonal projection on the substrate of the edge of the second inner wall surface facing the side of the isolation opening is a sixth sub-distance, the sixth sub-distance is greater than the fourth sub-distance and smaller than the third sub-distance.

[0016] According to any one of the preceding embodiments of the first aspect of the present application, the height of the second edge portion of the third type of light emitting unit extending to the second inner wall surface is less than the height of the second edge portion of the first type of light emitting unit extending to the second inner wall surface, and / or the height of the second edge portion of the third type of light emitting unit extending to the second inner wall surface is greater than the height of the second edge portion of the second type of light emitting unit extending to the second inner wall surface.

[0017] According to any one of the preceding embodiments of the first aspect of the present application, the first edge portion of the first type of light emitting unit, the first edge portion of the second type of light emitting unit and the first edge portion of the third type of light emitting unit all overlap with the first inner wall surface, the minimum distance between the normal projection on the substrate of the edge of the first edge portion of the first type of light emitting unit away from the middle portion side and the normal projection on the substrate of the edge of the first inner wall surface toward the isolation opening side is a first sub-distance, the minimum distance between the normal projection on the substrate of the edge of the first edge portion of the second type of light emitting unit away from the middle portion side and the normal projection on the substrate of the edge of the first inner wall surface toward the isolation opening side is a second sub-distance, the minimum distance between the normal projection on the substrate of the edge of the first edge portion of the third type of light emitting unit away from the middle portion side and the normal projection on the substrate of the edge of the first inner wall surface toward the isolation opening side is a fifth sub-distance, the fifth sub-distance is greater than the first sub-distance and less than the second sub-distance; or, the first edge portion of the first type of light emitting unit is spaced apart from the first inner wall surface, the first edge portion of the second type of light emitting unit and the first edge portion of the third type of light emitting unit all overlap with the first inner wall surface, the minimum distance between the normal projection on the substrate of the edge of the first edge portion of the second type of light emitting unit away from the middle portion side and the normal projection on the substrate of the edge of the first inner wall surface toward the isolation opening side is a second sub-distance, the minimum distance between the normal projection on the substrate of the edge of the first edge portion of the third type of light emitting unit away from the middle portion side and the normal projection on the substrate of the edge of the first inner wall surface toward the isolation opening side is a fifth sub-distance, the fifth sub-distance is less than the second sub-distance; or, the first edge portion of the first type of light emitting unit and the first edge portion of the third type of light emitting unit are both spaced apart from the first inner wall surface, the first edge portion of the second type of light emitting unit overlaps with the first inner wall surface, the minimum distance between the first edge portion of the first type of light emitting unit and the first inner wall surface is greater than the minimum distance between the first edge portion of the third type of light emitting unit and the first inner wall surface; or, the first edge portion of the first type of light emitting unit, the first edge portion of the second type of light emitting unit and the first edge portion of the third type of light emitting unit are all spaced apart from the first inner wall surface, the minimum distance between the first edge portion of the third type of light emitting unit and the first inner wall surface is greater than the minimum distance between the first edge portion of the second type of light emitting unit and the first inner wall surface, and the minimum distance between the first edge portion of the third type of light emitting unit and the first inner wall surface is less than the minimum distance between the first edge portion of the first type of light emitting unit and the first inner wall surface.

[0018] According to any one of the preceding embodiments of the first aspect of the application, the first electrode comprises a main body portion and first and second connecting portions disposed on opposite sides of the main body portion, the first connecting portion overlapping the first inner wall surface, wherein at least part of the second connecting portion of the first electrode overlaps the second inner wall surface, a minimum distance between a projection on the substrate of an edge of the first connecting portion distal from the main body portion and a projection on the substrate of an edge of the first inner wall surface facing the isolation opening is a third distance, a minimum distance between a projection on the substrate of an edge of the second connecting portion distal from the main body portion and a projection on the substrate of an edge of the second inner wall surface facing the isolation opening is a fourth distance, the third distance is greater than the fourth distance; and / or at least part of the second connecting portion of the first electrode is spaced apart from the second inner wall surface.

[0019] According to any one of the preceding embodiments of the first aspect of the application, the first connecting portion extends to a height above the first inner wall surface that is greater than a height to which the second connecting portion extends above the second inner wall surface.

[0020] According to any one of the preceding embodiments of the first aspect of the application, the isolation structure comprises a first isolation portion and a second isolation portion disposed on a side of the first isolation portion distal from the substrate, the second isolation portion protruding beyond the first isolation portion towards the isolation opening.

[0021] According to any one of the preceding embodiments of the first aspect of the application, the isolation structure further comprises a conductive portion disposed on a side of the first isolation portion facing the substrate, a projection on the substrate of the first isolation portion being located within a projection on the substrate of the conductive portion.

[0022] According to any one of the preceding embodiments of the first aspect of the application, the first inner wall surface comprises surfaces of the first and second isolation portions and the conductive portion on the same side facing the isolation opening and surfaces of the conductive portion on the same side distal from the substrate, and / or the second inner wall surface comprises surfaces of the first and second isolation portions and the conductive portion on the same side facing the isolation opening and surfaces of the conductive portion on the same side distal from the substrate.

[0023] According to any one of the preceding embodiments of the first aspect of the application, at least part of the first electrode overlaps the first and second isolation portions and the conductive portion.

[0024] According to any one of the preceding embodiments of the first aspect of the application, at least part of the first electrode overlaps surfaces of the first isolation portion and the conductive portion in the first inner wall surface.

[0025] According to any one of the preceding embodiments of the first aspect of the application, at least part of the light emitting unit overlaps the conductive portion, or at least part of the light emitting unit overlaps both the conductive portion and the first isolation portion.

[0026] According to any one of the foregoing embodiments of the first aspect of the present application, at least part of the light emitting units overlaps the surface of the conductive part in the second inner wall surface, or at least part of the light emitting units overlaps both the surface of the conductive part in the second inner wall surface and the surface of the first isolation part.

[0027] According to any one of the foregoing embodiments of the first aspect of the present application, at least one of the light emitting units and the first electrode in each isolation opening overlaps the first inner wall surface, and / or at least one of the light emitting units and the first electrode in each isolation opening overlaps the second inner wall surface.

[0028] The embodiments of the first aspect of the present application also provide a display panel, comprising: a substrate; an isolation structure arranged on one side of the substrate and enclosing an isolation opening, the isolation opening having opposite first and second inner wall surfaces; a light emitting layer comprising light emitting units in the isolation opening; and a first electrode layer comprising first electrodes arranged on a side of the light emitting units away from the substrate, the first electrodes at least overlapping the first inner wall surface, wherein the overlapping area between at least part of the light emitting units and the first inner wall surface in each isolation opening is smaller than the overlapping area between the light emitting units and the second inner wall surface.

[0029] According to the embodiments of the first aspect of the present application, at least part of the light emitting units overlaps both the first and second inner wall surfaces, and / or at least part of the light emitting units is arranged apart from the first inner wall surface and overlaps the second inner wall surface.

[0030] According to any one of the foregoing embodiments of the first aspect of the present application, the orthographic projection of the light emitting units on the substrate is within the orthographic projection range of the first electrode layer on the substrate.

[0031] According to any one of the foregoing embodiments of the first aspect of the present application, the light emitting units comprise a middle part and first and second edge parts arranged on opposite sides of the middle part, at least part of the light emitting units has the first edge part overlapping the first inner wall surface and the second edge part overlapping the second inner wall surface, the minimum distance between the orthographic projection on the substrate of the edge of the first edge part away from the middle part and the orthographic projection on the substrate of the edge of the first inner wall surface facing the isolation opening is a first distance, the minimum distance between the orthographic projection on the substrate of the edge of the second edge part away from the middle part and the orthographic projection on the substrate of the edge of the second inner wall surface facing the isolation opening is a second distance, and the first distance is smaller than the second distance; and / or at least part of the light emitting units has the first edge part arranged apart from the first inner wall surface and the second edge part overlapping the second inner wall surface.

[0032] According to any one of the foregoing embodiments of the first aspect of the present application, the isolation opening comprises a first opening and a second opening, the light emitting unit comprises a first type of light emitting unit arranged corresponding to the first opening and a second type of light emitting unit arranged corresponding to the second opening, the average thickness of the first type of light emitting unit is greater than the average thickness of the second type of light emitting unit, wherein the second edge portion of the first type of light emitting unit and the second edge portion of the second type of light emitting unit are both overlapped with the second inner wall surface, and the overlapping area between the first type of light emitting unit and the second inner wall surface is greater than the overlapping area between the second type of light emitting unit and the second inner wall surface.

[0033] According to any one of the foregoing embodiments of the first aspect of the present application, the minimum distance between the normal projection of the edge of the second edge portion of the first type of light emitting unit away from the one side of the middle portion on the substrate and the normal projection of the edge of the second inner wall surface toward the isolation opening on the substrate is a third sub-distance, and the minimum distance between the normal projection of the edge of the second edge portion of the second type of light emitting unit away from the one side of the middle portion on the substrate and the normal projection of the edge of the second inner wall surface toward the isolation opening on the substrate is a fourth sub-distance, and the third sub-distance is greater than the fourth sub-distance.

[0034] According to any one of the foregoing embodiments of the first aspect of the present application, the height of the second edge portion of the first type of light emitting unit extending to the second inner wall surface is greater than the height of the second edge portion of the second type of light emitting unit extending to the second inner wall surface.

[0035] According to any one of the foregoing embodiments of the first aspect of the present application, the first edge portion of the first type of light emitting unit and the first edge portion of the second type of light emitting unit are both overlapped with the first inner wall surface, the minimum distance between the normal projection of the edge of the first edge portion of the first type of light emitting unit away from the one side of the middle portion on the substrate and the normal projection of the edge of the first inner wall surface toward the isolation opening on the substrate is a first sub-distance, the minimum distance between the normal projection of the edge of the first edge portion of the second type of light emitting unit away from the one side of the middle portion on the substrate and the normal projection of the edge of the first inner wall surface toward the isolation opening on the substrate is a second sub-distance, and the first sub-distance is less than the second sub-distance; or, the first edge portion of the first type of light emitting unit is arranged spaced apart from the first inner wall surface, the first edge portion of the second type of light emitting unit is overlapped with the first inner wall surface; or, the first edge portion of the first type of light emitting unit and the first edge portion of the second type of light emitting unit are both arranged spaced apart from the first inner wall surface, and the minimum distance between the first edge portion of the first type of light emitting unit and the first inner wall surface is greater than the minimum distance between the first edge portion of the second type of light emitting unit and the first inner wall surface.

[0036] According to any one of the preceding embodiments of the first aspect of the application, the isolation opening further comprises a third opening, the light emitting units comprise third light emitting units arranged corresponding to the third opening, the average thickness of the third light emitting units is smaller than the average thickness of the first light emitting units, and the average thickness of the third light emitting units is larger than the average thickness of the second light emitting units, the second edge portion of the first light emitting units, the second edge portion of the second light emitting units and the second edge portion of the third light emitting units all overlap with the second inner wall surface, the overlapping area between the third light emitting units and the second inner wall surface is smaller than the overlapping area between the first light emitting units and the second inner wall surface, and the overlapping area between the third light emitting units and the second inner wall surface is larger than the overlapping area between the second light emitting units and the second inner wall surface.

[0037] According to any one of the preceding embodiments of the first aspect of the application, the minimum distance between the orthogonal projection of the edge of the second edge portion of the first light emitting units away from the side of the middle portion on the substrate and the orthogonal projection of the edge of the second inner wall surface towards the isolation opening on the substrate is a third sub-distance, the minimum distance between the orthogonal projection of the edge of the second edge portion of the second light emitting units away from the side of the middle portion on the substrate and the orthogonal projection of the edge of the second inner wall surface towards the isolation opening on the substrate is a fourth sub-distance, and the minimum distance between the orthogonal projection of the edge of the second edge portion of the third light emitting units away from the side of the middle portion on the substrate and the orthogonal projection of the edge of the second inner wall surface towards the isolation opening on the substrate is a sixth sub-distance, the sixth sub-distance is larger than the fourth sub-distance and smaller than the third sub-distance.

[0038] According to any one of the preceding embodiments of the first aspect of the application, the height of the second edge portion of the third light emitting units extending to the second inner wall surface is smaller than the height of the second edge portion of the first light emitting units extending to the second inner wall surface, and / or the height of the second edge portion of the third light emitting units extending to the second inner wall surface is larger than the height of the second edge portion of the second light emitting units extending to the second inner wall surface.

[0039] According to any one of the foregoing embodiments of the first aspect of the present application, the first edge portion of the first type of light emitting unit, the first edge portion of the second type of light emitting unit, and the first edge portion of the third type of light emitting unit all overlap with the first inner wall surface, the minimum distance between the orthogonal projection of the edge of the first edge portion of the first type of light emitting unit away from the side of the intermediate portion on the substrate and the orthogonal projection of the edge of the first inner wall surface toward the side of the isolation opening on the substrate is a first sub-distance, the minimum distance between the orthogonal projection of the edge of the first edge portion of the second type of light emitting unit away from the side of the intermediate portion on the substrate and the orthogonal projection of the edge of the first inner wall surface toward the side of the isolation opening on the substrate is a second sub-distance, the minimum distance between the orthogonal projection of the edge of the first edge portion of the third type of light emitting unit away from the side of the intermediate portion on the substrate and the orthogonal projection of the edge of the first inner wall surface toward the side of the isolation opening on the substrate is a fifth sub-distance, the fifth sub-distance is greater than the first sub-distance and less than the second sub-distance; or, the first edge portion of the first type of light emitting unit is spaced apart from the first inner wall surface, the first edge portion of the second type of light emitting unit and the first edge portion of the third type of light emitting unit all overlap with the first inner wall surface, the minimum distance between the orthogonal projection of the edge of the first edge portion of the second type of light emitting unit away from the side of the intermediate portion on the substrate and the orthogonal projection of the edge of the first inner wall surface toward the side of the isolation opening on the substrate is a second sub-distance, the minimum distance between the orthogonal projection of the edge of the first edge portion of the third type of light emitting unit away from the side of the intermediate portion on the substrate and the orthogonal projection of the edge of the first inner wall surface toward the side of the isolation opening on the substrate is a fifth sub-distance, the fifth sub-distance is less than the second sub-distance; or, the first edge portion of the first type of light emitting unit and the first edge portion of the third type of light emitting unit are both spaced apart from the first inner wall surface, the first edge portion of the second type of light emitting unit overlaps with the first inner wall surface, the minimum distance between the first edge portion of the first type of light emitting unit and the first inner wall surface is greater than the minimum distance between the first edge portion of the third type of light emitting unit and the first inner wall surface; or, the first edge portion of the first type of light emitting unit, the first edge portion of the second type of light emitting unit, and the first edge portion of the third type of light emitting unit are all spaced apart from the first inner wall surface, the minimum distance between the first edge portion of the third type of light emitting unit and the first inner wall surface is greater than the minimum distance between the first edge portion of the second type of light emitting unit and the first inner wall surface, and the minimum distance between the first edge portion of the third type of light emitting unit and the first inner wall surface is less than the minimum distance between the first edge portion of the first type of light emitting unit and the first inner wall surface.

[0040] Embodiments of the second aspect of the present application provide a display device, the display device comprising the display panel of any one of the foregoing embodiments.

[0041] In a display panel provided by the embodiments of the present application, the display panel comprises a substrate, an isolation structure, a light emitting layer, and a first electrode layer. The isolation structure is arranged on one side of the substrate and encloses an isolation opening. The light emitting layer comprises light emitting units located in the isolation opening. The isolation structure can be used to divide the sub-pixels of the display panel.

[0042] The isolation opening has opposite first and second inner wall surfaces, and the first electrode layer includes a first electrode disposed on a side of the light emitting unit facing away from the substrate. The first electrode can at least overlap the first inner wall surface, so that the first electrodes of adjacent sub-pixels can be electrically connected through the isolation structure, facilitating control of the first electrodes in the display panel and reducing the control difficulty of the display panel.

[0043] By setting the overlapping area between the first electrode and the first inner wall surface in at least part of the isolation opening to be greater than the overlapping area between the first electrode and the second inner wall surface, the first electrode and the first inner wall surface can have a larger overlapping area, thereby better reducing the resistance of the display panel and improving the working stability of the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0045] Figure 1 is a partial structure schematic diagram of an isolation structure provided by an embodiment of the present application;

[0046] Figure 2 is a partial cross-sectional view of a display panel provided by an embodiment of the present application;

[0047] Figure 3 is a schematic diagram of evaporation preparation of a light emitting layer provided by an embodiment of the present application;

[0048] Figure 4 is a partial cross-sectional view of a display panel provided by another embodiment of the present application;

[0049] Figure 5 is a partial cross-sectional view of a display panel provided by still another embodiment of the present application;

[0050] Figure 6 is a partial cross-sectional view of a display panel provided by yet another embodiment of the present application;

[0051] Figure 7 is a partial cross-sectional view of a display panel provided by still another embodiment of the present application;

[0052] Figure 8 is a partial cross-sectional view of a display panel provided by still another embodiment of the present application;

[0053] Figure 9is a partial sectional view of a display panel provided by another embodiment of the present application.

[0054] Figure 10 is a partial sectional view of a display panel provided by another embodiment of the present application.

[0055] BRIEF DESCRIPTION OF DRAWINGS

[0056] 10. The display panel;

[0057] 100. The substrate; 120. The first insulating layer; 130. The second insulating layer; 140. The third insulating layer; 150. The driving circuit; 151. The transistor; 151a. The gate; 151b. The source / drain; 152. The storage capacitor; 152a. The first plate; 152b. The second plate;

[0058] 200. The second electrode layer; 210. The second electrode;

[0059] 300. The pixel definition layer; 310. The pixel defining portion; 320. The pixel opening;

[0060] 400. The isolation structure; 400a. The isolation opening; 400aa. The first opening; 400ab. The second opening; 400ac. The third opening; 401. The first inner wall surface; 402. The second inner wall surface; 410. The first isolation portion; 420. The second isolation portion; 430. The conductive portion;

[0061] 500. The light emitting layer; 510. The light emitting unit; 510a. The first type of light emitting unit; 510b. The second type of light emitting unit; 510c. The third type of light emitting unit; 511. The first edge portion; 512. The second edge portion; 513. The middle portion;

[0062] 600. The first electrode layer; 610. The first electrode; 611. The first connection portion; 612. The second connection portion; 613. The main body portion;

[0063] 20. The evaporation source;

[0064] L1. The first pitch; L2. The second pitch; L3. The third pitch; L4. The fourth pitch;

[0065] D1. The first sub-pitch; D2. The second sub-pitch; D3. The third sub-pitch; D4. The fourth sub-pitch; D5. The fifth sub-pitch; D6. The sixth sub-pitch;

[0066] X. The first direction;

[0067] Y. The second direction;

[0068] Z. The thickness direction. DETAILED DESCRIPTION

[0069] The features and exemplary embodiments of the various aspects of the present application will be described in detail below with reference to the drawings. For the purpose of clarity, the description is divided into the following sections: technical scheme, technical effects, and specific embodiments. In order to make the purpose, technical scheme and advantages of the present application more clear and apparent, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are configured only to explain the present application and are not configured to limit the present application. The present application can be implemented without some of the specific details for those skilled in the art. The following description of the embodiments is merely to provide a better understanding of the present application by showing examples of the present application.

[0070] It should be noted that, in this document, the terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0071] It should be understood that, when describing the structure of a component, when one layer, one region is referred to as being "on" or "above" another layer, another region, it can mean being directly on or above another layer, another region, or containing other layers or regions therebetween. Moreover, if the component is turned over, the layer, the region will be "under" or "below" the other layer, the other region.

[0072] Embodiments of the present application provide a display panel and a display device, which will be described below with reference to the accompanying drawings.

[0073] Figure 1 is a partial structure schematic diagram of an isolation structure 400 provided by an embodiment of the present application, Figure 2 is a partial cross-sectional view of a display panel 10 provided by an embodiment of the present application, Figure 3 is an evaporation preparation schematic diagram of a light-emitting layer 500 provided by an embodiment of the present application. In the figure, the X direction is the first direction, the Y direction is the second direction, and Z is the thickness direction of the display panel 10. The first direction X, the second direction Y and the thickness direction Z can intersect with each other, for example, the first direction X, the second direction Y and the thickness direction Z can be perpendicular to each other.

[0074] As Figures 1 to 3As shown, the embodiment of the first aspect of the present application provides a display panel 10, comprising: a substrate 100; an isolation structure 400 disposed on one side of the substrate 100 and enclosing an isolation opening 400a, the isolation opening 400a having opposite first and second inner wall surfaces 401 and 402; a light-emitting layer 500 comprising a light-emitting unit 510 located in the isolation opening 400a; and a first electrode layer 600 comprising a first electrode 610 disposed on a side of the light-emitting unit 510 away from the substrate 100, wherein the overlap area between the first electrode 610 and the first inner wall surface 401 in at least part of the isolation opening 400a is greater than the overlap area between the first electrode 610 and the second inner wall surface 402.

[0075] In another display panel 10 provided by the embodiments of the present application, the display panel 10 comprises a substrate 100, an isolation structure 400, a light-emitting layer 500, and a first electrode layer 600. The isolation structure 400 is disposed on one side of the substrate 100 and encloses an isolation opening 400a. The light-emitting layer 500 comprises a light-emitting unit 510 located in the isolation opening 400a. The isolation structure 400 can be used to divide a sub-pixel of the display panel 10.

[0076] The isolation opening 400a has opposite first and second inner wall surfaces 401 and 402. For example, the isolation opening 400a can have opposite first and second inner wall surfaces 401 and 402 in a specific direction. The specific direction intersects the thickness direction Z of the display panel 10, for example, the specific direction can be perpendicular to the thickness direction Z of the display panel 10.

[0077] Optionally, the specific direction can include any one direction intersecting the thickness direction Z of the display panel 10, for example, the specific direction can include the first and second directions X and Y in the above embodiment, and the isolation opening 400a can have opposite first and second inner wall surfaces 401 and 402 in the intersecting first and second directions X and Y. Figure 1 The isolation opening 400a can be enclosed by the first and second inner wall surfaces 401 and 402.

[0078] Optionally, the specific direction can be the scanning direction when the material of the light-emitting layer 500 is evaporated, and / or the specific direction can be the scanning direction when the material of the first electrode layer 600 is evaporated.

[0079] Specifically, as shown in Figure 1 The single isolation opening 400a can have at least two first inner wall surfaces 401 and at least two second inner wall surfaces 402. Adjacent two first inner wall surfaces 401 can be connected to each other, adjacent two second inner wall surfaces 402 can be connected to each other, and adjacent first and second inner wall surfaces 401 and 402 can also be connected to each other.

[0080] The first electrode layer 600 includes a first electrode 610 disposed on a side of the light emitting unit 510 facing away from the substrate 100. The first electrode 610 can at least overlap the first inner wall surface 401, such that the first electrodes 610 of adjacent sub-pixels can be electrically connected through the isolation structure 400, so as to facilitate control of the first electrodes 610 in the display panel 10, and reduce the control difficulty of the display panel 10.

[0081] Optionally, the material of the isolation structure 400 can include a conductive material, for example, the isolation structure 400 can include at least one of titanium, aluminum and molybdenum, so as to facilitate the electrical connection of the first electrodes 610 of adjacent sub-pixels through the isolation structure 400.

[0082] By setting the overlapping area between the first electrode 610 and the first inner wall surface 401 in at least part of the isolation opening 400a to be greater than the overlapping area between the first electrode 610 and the second inner wall surface 402, the first electrode 610 and the first inner wall surface 401 can have a larger overlapping area, thereby better reducing the resistance of the display panel 10 and improving the working stability of the display panel 10.

[0083] In some embodiments of the present application, the overlapping of one and another can refer to the mutual contact of one and another. The overlapping area between one and another can refer to the surface area of the mutual contact of one and another. The greater the overlapping area, the greater the surface area of the mutual contact of the two. For example, the overlapping area between the first electrode 610 and the first inner wall surface 401 can refer to the surface area of the mutual contact of the first electrode 610 and the first inner wall surface, and the overlapping area between the first electrode 610 and the second inner wall surface 402 can refer to the surface area of the mutual contact of the first electrode 610 and the second inner wall surface 402.

[0084] Specifically, when at least part of the surface between one and another is in mutual contact, it can be considered that the overlapping area between one and another is greater than zero, and when one and another are spaced apart, it can be considered that the overlapping area between one and another is equal to zero.

[0085] In some embodiments of the present application, the substrate 100 can include a substrate 110 and a driving circuit 150 disposed on the substrate 110, for example. Optionally, the substrate 100 includes a first insulating layer 120, a second insulating layer 130 and a third insulating layer 140 which are stacked. For example, the driving circuit 150 can include a transistor 151, a storage capacitor 152 and a driving signal line for connecting various devices. The transistor 151 includes a semiconductor, a gate 151a and a source-drain 151b. The storage capacitor 152 includes a first plate 152a and a second plate 152b.

[0086] As an example, the gate 151a and the first plate 152a can be located on a side of the first insulating layer 120 facing the substrate 110, the second plate 152b can be located between the first insulating layer 120 and the second insulating layer 130, and the source-drain 151b can be located between the second insulating layer 130 and the third insulating layer 140.

[0087] Optionally, the display panel 10 can further include a pixel definition layer 300 disposed on a side of the substrate 100. The pixel definition layer 300 can include a pixel limiting portion 310 and a pixel opening 320 enclosed by the pixel limiting portion 310. The pixel opening 320 can be in communication with the isolation opening 400a, and the light emitting unit 510 can be partially located in the pixel opening 320. The pixel definition layer 300 can also be used to participate in the division of the sub-pixels of the display panel 10.

[0088] Optionally, the relative positional relationship between the isolation structure 400 and the pixel definition layer 300 can be set in various ways. For example, as shown in FIGS. 1A and 1B, the isolation structure 400 can be disposed on a side of the pixel limiting portion 310 away from the substrate 100. Or for example, the pixel limiting portion 310 can be provided with a receiving groove, and at least part of the isolation structure 400 can be disposed in the receiving groove, so as to better reduce the thickness of the display panel 10. Figure 2 and Figure 3 Optionally, the relative positional relationship between the isolation structure 400 and the pixel definition layer 300 can be set in various ways. For example, as shown in FIGS. 1A and 1B, the isolation structure 400 can be disposed on a side of the pixel limiting portion 310 away from the substrate 100. Or for example, the pixel limiting portion 310 can be provided with a receiving groove, and at least part of the isolation structure 400 can be disposed in the receiving groove, so as to better reduce the thickness of the display panel 10.

[0089] In some optional embodiments, the display panel 10 can further include a second electrode layer 200 disposed on a side of the substrate 100. The second electrode layer 200 can include a second electrode 210 disposed on a side of the light emitting unit 510 facing the substrate 100.

[0090] Optionally, the light emitting unit 510 can include a hole injection layer (HIL), a hole transport layer (HTL), a light emitting structure, an electron injection layer (EIL), and an electron transport layer (ETL).

[0091] In these optional embodiments, the first electrode layer 600 and the second electrode layer 200 can serve as the pixel electrode layer of the display panel 10. One of the first electrode 610 and the second electrode 210 can serve as an anode, and the other can serve as a cathode to drive the light emitting unit 510 to emit light. The embodiments of the present application take the first electrode 610 as the cathode of the display panel 10 and the second electrode 210 as the anode of the display panel 10 as an example.

[0092] In some optional embodiments, the isolation structure 400 can include a first isolation portion 410 and a second isolation portion 420 located on a side of the first isolation portion 410 away from the substrate 100, the second isolation portion 420 being protruded from the first isolation portion 410 towards the isolation opening 400a.

[0093] Optionally, the material of the first isolation portion 410 can include aluminum, and the material of the second isolation portion 420 can include titanium.

[0094] By protruding the second isolation portion 420 from the first isolation portion 410 towards the isolation opening 400a, the second isolation portion 420 can shield at least part of the material used for preparing the light emitting layer 500 and the first electrode layer 600 when the light emitting layer 500 and the first electrode layer 600 of the display panel 10 are evaporated, so as to isolate the light emitting layer 500 and the first electrode layer 600 between adjacent sub-pixels, and facilitate the formation of a plurality of spaced light emitting units 510 and first electrodes 610, thereby eliminating the need to use a mask plate with high precision when evaporating the light emitting layer 500 and the first electrode layer 600, for example, eliminating the need to use a fine metal mask (FMM) when evaporating the light emitting layer 500 and the first electrode layer 600, so as to better reduce the production cost of the display panel 10.

[0095] Optionally, the isolation structure 400 further includes a conductive portion 430 located on a side of the first isolation portion 410 towards the substrate 100, the orthographic projection of the first isolation portion 410 on the substrate 100 being located within the orthographic projection of the conductive portion 430 on the substrate 100, so that the conductive portion 430 can have a larger size to facilitate the lapping between the first electrode 610 and the isolation structure 400, and better improve the lapping area between the first electrode 610 and the isolation structure 400, thereby better improving the working stability of the display panel 10.

[0096] Optionally, the first electrode 610 is lapped with at least one of the first isolation portion 410 and the conductive portion 430, for example, the first electrode 610 in at least part of the isolation opening 400a can be lapped with only the conductive portion 430, or the first electrode 610 in at least part of the isolation opening 400a can be lapped with both the conductive portion 430 and the first isolation portion 410.

[0097] Optionally, the material of the conductive portion 430 can include molybdenum.

[0098] Optionally, the first inner wall surface 401 can include the first isolation portion 410, the second isolation portion 420 and the conductive portion 430 on the same side in a certain direction, the surface of the conductive portion 430 facing one side of the isolation opening 400a, and the surface of the conductive portion 430 facing away from the substrate 100. Optionally, the second inner wall surface 402 can include the first isolation portion 410, the second isolation portion 420 and the conductive portion 430 on the same side in a certain direction, the surface of the conductive portion 430 facing one side of the isolation opening 400a, and the surface of the conductive portion 430 facing away from the substrate 100.

[0099] Optionally, at least part of the first electrode 610 can be overlapped with the surface of the first isolation portion 410 and the surface of the conductive portion 430 in the first inner wall surface 401, so that the first electrode 610 can have a sufficient overlap area with the first inner wall surface 401.

[0100] In some embodiments of the present application, there are various ways to achieve that the overlap area between the first electrode 610 and the first inner wall surface 401 in at least part of the isolation opening 400a is greater than the overlap area between the first electrode 610 and the second inner wall surface 402.

[0101] In some optional embodiments, since the light emitting unit 510 below the first electrode 610 is easy to block the overlap between the first electrode 610 and the isolation structure 400, the overlap area between the first electrode 610 and the first inner wall surface 401 and the second inner wall surface 402 can be adjusted by adjusting the overlap area between the light emitting unit 510 and the first inner wall surface 401 and the second inner wall surface 402 in the isolation opening 400a.

[0102] Optionally, the overlap area between the light emitting unit 510 and the first inner wall surface 401 in at least part of the isolation opening 400a is less than the overlap area between the light emitting unit 510 and the second inner wall surface 402.

[0103] In these optional embodiments, by setting the overlap area between the light emitting unit 510 and the first inner wall surface 401 in at least part of the isolation opening 400a to be less than the overlap area between the light emitting unit 510 and the second inner wall surface 402, the first electrode 610 can be less affected by the light emitting unit 510 and better overlap with the first inner wall surface 401, which can better improve the overlap area between the first electrode 610 and the first inner wall surface 401, thereby better reducing the resistance of the display panel 10 and improving the working stability of the display panel 10.

[0104] Optionally, the overlap area between the light emitting unit 510 and the first inner wall surface 401 can refer to the surface area of the light emitting unit 510 and the first inner wall surface contacting each other, and the overlap area between the light emitting unit 510 and the second inner wall surface 402 can refer to the surface area of the light emitting unit 510 and the second inner wall surface 402 contacting each other.

[0105] Therefore, by setting the overlap area between the light emitting unit 510 and the first inner wall surface 401 in the at least partially isolated opening 400a to be smaller than the overlap area between the light emitting unit 510 and the second inner wall surface 402, the contact area between the light emitting unit 510 and the first inner wall surface 401 is small, that is, the light emitting unit 510 is not easily covered on the first inner wall surface 401, so that the material of the first electrode 610 can be better formed on the surface of the first inner wall surface 401 when the first electrode layer 600 is subsequently prepared, thereby better improving the contact area between the first electrode and the first inner wall surface 401, thereby better reducing the resistance of the display panel 10 and improving the working stability of the display panel 10.

[0106] Optionally, at least part of the light emitting unit 510 can overlap with the conductive part 430, or at least part of the light emitting unit 510 can overlap with the conductive part 430 and the first isolation part 410. For example, at least part of the light emitting unit 510 overlaps with the surface of the conductive part 430 in the second inner wall surface 402, or at least part of the light emitting unit 510 overlaps with the surface of the conductive part 430 in the second inner wall surface 402 and the surface of the first isolation part 410. In order to achieve that the overlap area between the light emitting unit 510 and the first inner wall surface 401 in the at least partially isolated opening 400a is smaller than the overlap area between the light emitting unit 510 and the second inner wall surface 402.

[0107] Optionally, at least part of the light emitting unit 510 can not overlap with the first inner wall surface 401 and the second inner wall surface 402, that is, at least part of the light emitting unit 510 is arranged to be spaced apart from the conductive part 430.

[0108] Optionally, the orthographic projection of the light emitting unit 510 on the substrate 100 can be located in the orthographic projection range of the first electrode layer 600 on the substrate 100, so that the light emitting unit 510 can have a smaller size to better reduce the shielding effect of the light emitting unit 510 on the first electrode 610.

[0109] In some embodiments of the present application, there are various ways to achieve that the overlap area between the light emitting unit 510 and the first inner wall surface 401 in the at least partially isolated opening 400a is smaller than the overlap area between the light emitting unit 510 and the second inner wall surface 402.

[0110] As Figure 3As shown, optionally, during the fabrication process of the display panel 10, it is not necessary to change the size of the evaporation range of the light-emitting unit 510. Only the evaporation angle during evaporation can be adjusted. For example, by adjusting the material movement angle of the light-emitting unit 510 emitted from the evaporation source 20, the material of the light-emitting unit 510 can fall asymmetrically into at least a portion of the isolation opening 400a, thereby making the overlap area between the light-emitting unit 510 in the partial isolation opening 400a and the first inner wall surface 401 smaller than the overlap area between the light-emitting unit 510 and the second inner wall surface 402.

[0111] Although when the vapor deposition range of the light-emitting unit 510 is not changed during the fabrication of the display panel 10, and only the vapor deposition is adjusted, the light-emitting unit 510 and the second inner wall surface 402 are likely to have a large overlap area, making it difficult for the first electrode 610 to have a large overlap area with the second inner wall surface 402, when the first electrode 610 is fabricated, the light-emitting unit 510 is unlikely to block or interfere with the material of the first electrode 610 falling onto the first inner wall surface 401, so that the first electrode 610 formed on the first inner wall surface 401 can have better film quality. For example, the first electrode 610 formed on the first inner wall surface 401 can have better continuity and thickness uniformity. Therefore, compared to the scheme in the related technology where the light-emitting unit 510 is arranged symmetrically within the isolation opening 400a, that is, compared to the scheme in the related technology where the overlap area between the light-emitting unit 510 and the first inner wall surface 401 is equal to the overlap area between the light-emitting unit 510 and the second inner wall surface 402, the film formation quality of the first electrode 610 on the first inner wall surface 401 in this embodiment is significantly better than that of the first electrode 610 located on the first inner wall surface 401 and the second inner wall surface 402 in the related technology. Therefore, by setting the overlap area between the light-emitting unit 510 and the first inner wall surface 401 within at least a portion of the isolation opening 400a to be smaller than the overlap area between the light-emitting unit 510 and the second inner wall surface 402, this embodiment can not only improve the overlap area between the first electrode 610 and the first inner wall surface 401, but also improve the film formation quality of the first electrode 610 on the first inner wall surface 401, thereby effectively reducing the resistance of the display panel 10 and improving the working stability of the display panel 10.

[0112] like Figure 2 As shown, in some optional embodiments, the light-emitting unit 510 includes a middle portion 513 and a first edge portion 511 and a second edge portion 512 disposed on both sides of the middle portion 513. For example, the light-emitting unit 510 includes a middle portion 513 and a first edge portion 511 and a second edge portion 512 disposed on both sides of the middle portion 513 in a specific direction.

[0113] Optionally, the intermediate portion 513 can be located within the pixel opening 320, and the first edge portion 511 and the second edge portion 512 can be located outside the pixel opening 320.

[0114] Optionally, the overlap area between the light emitting unit 510 and the first inner wall surface 401 within the at least partially isolated pixel opening 400a can be less than the overlap area between the light emitting unit 510 and the second inner wall surface 402. This can mean that the overlap area between the first edge portion 511 and the first inner wall surface 401 within the at least partially isolated pixel opening 400a can be less than the overlap area between the second edge portion 512 and the second inner wall surface 402.

[0115] Optionally, the overlap area between the second edge portion 512 and the second inner wall surface 402 can be greater than zero, i.e., the second edge portion 512 can overlap with the second inner wall surface 402. This can enable more material of the light emitting unit 510 to be formed on the second inner wall surface 402 when the deposition angle during deposition is adjusted without changing the size of the light emitting unit 510, so as to achieve less material of the light emitting unit 510 being formed on the first inner wall surface 401, thereby facilitating the overlap area between the light emitting unit 510 and the first inner wall surface 401 within the at least partially isolated pixel opening 400a to be less than the overlap area between the light emitting unit 510 and the second inner wall surface 402, so that the first electrode 610 can better overlap with the first inner wall surface 401 without being easily affected by the light emitting unit 510.

[0116] In some embodiments of the present application, the relative positional relationship between the light emitting unit 510 and the first inner wall surface 401 can be set in various ways.

[0117] As shown in FIG. 6, in some optional embodiments, at least part of the light emitting unit 510 can overlap with both the first inner wall surface 401 and the second inner wall surface 402. Figure 2

[0118] Specifically, the first edge portion 511 of the at least part of the light emitting unit 510 can overlap with the first inner wall surface 401, and the second edge portion 512 can overlap with the second inner wall surface 402, i.e., the overlap area between the first edge portion 511 and the first inner wall surface 401 within the at least partially isolated pixel opening 400a can be greater than zero, and the overlap area between the second edge portion 512 and the second inner wall surface 402 can be greater than zero.

[0119] ​Optionally, the minimum distance between the orthogonal projection of the edge of the first edge portion 511 away from the middle portion 513 on the substrate 100 and the orthogonal projection of the edge of the first inner wall surface 401 toward the isolation opening 400a on the substrate 100 is a first distance L1, and the minimum distance between the orthogonal projection of the edge of the second edge portion 512 away from the middle portion 513 on the substrate 100 and the orthogonal projection of the edge of the second inner wall surface 402 toward the isolation opening 400a on the substrate 100 is a second distance L2. The first distance L1 can be smaller than the second distance L2, so that the overlapping part of the orthogonal projection of the first edge portion 511 on the substrate 100 and the orthogonal projection of the first inner wall surface 401 on the substrate 100 is smaller, and the overlapping part of the orthogonal projection of the second edge portion 512 on the substrate 100 and the orthogonal projection of the second inner wall surface 402 on the substrate 100 is larger, so that the contact area of the first edge portion 511 and the first inner wall surface 401 can be smaller than the contact area of the second edge portion 512 and the second inner wall surface 402, that is, the overlapping area between the light emitting unit 510 and the first inner wall surface 401 in the isolation opening 400a can be smaller than the overlapping area between the light emitting unit 510 and the second inner wall surface 402, so that the first electrode 610 can not be easily affected by the light emitting unit 510 to better overlap with the first inner wall surface 401, which can better improve the overlapping area of the first electrode 610 and the first inner wall surface 401, reduce the resistance of the display panel 10, and improve the working stability of the display panel 10.

[0120] Figure 4 is a partial cross-sectional view of a display panel 10 provided by another embodiment of the present application.

[0121] As shown in FIG. 6, in some optional embodiments, at least part of the light emitting unit 510 can be spaced apart from the first inner wall surface 401 and overlap with the second inner wall surface 402. Figure 4

[0122] Specifically, the first edge portion 511 of at least part of the light emitting unit 510 can be spaced apart from the first inner wall surface 401, and the second edge portion 512 overlaps with the second inner wall surface 402, that is, the overlapping area between the first edge portion 511 in at least part of the isolation opening 400a and the first inner wall surface 401 can be equal to zero, and the overlapping area between the second edge portion 512 and the second inner wall surface 402 can be greater than zero.

[0123] ​In these optional embodiments, by setting the first edge part 511 of the light emitting unit 510 in the part of the isolation opening 400a apart from the first inner wall surface 401, the first inner wall surface 401 can be better exposed after the light emitting unit 510 in the part of the isolation opening 400a is prepared, so that the material of the first electrode 610 can better fall on the surface of the first inner wall surface 401 when the first electrode 610 is prepared in the part of the isolation opening 400a, so that the first electrode 610 can be overlapped with a larger area of the first inner wall surface 401, thereby reducing the resistance of the display panel 10 and improving the working stability of the display panel 10.

[0124] Figure 5 is a partial cross-sectional view of a display panel 10 provided by another embodiment of the present application.

[0125] As shown in Figure 5 some optional embodiments, the isolation opening 400a can include a first opening 400aa, a second opening 400ab, and a third opening 400ac, and the light emitting unit 510 can include a first type of light emitting unit 510a arranged corresponding to the first opening 400aa, a second type of light emitting unit 510b arranged corresponding to the second opening 400ab, and a third type of light emitting unit 510c arranged corresponding to the third opening 400ac. Among them, the light emitting colors of the first type of light emitting unit 510a, the second type of light emitting unit 510b, and the third type of light emitting unit 510c can be different to realize color display of the display panel 10. For example, the first type of light emitting unit 510a can be used to emit red light, the second type of light emitting unit 510b can be used to emit blue light, and the third type of light emitting unit 510c can be used to emit green light.

[0126] Optionally, the arrangement of the first type of light emitting unit 510a corresponding to the first opening 400aa can mean that the orthographic projection of the first type of light emitting unit 510a on the substrate 100 can be located in the orthographic projection of the first opening 400aa on the substrate 100; the arrangement of the second type of light emitting unit 510b corresponding to the second opening 400ab can mean that the orthographic projection of the second type of light emitting unit 510b on the substrate 100 can be located in the orthographic projection of the second opening 400ab on the substrate 100; and the arrangement of the third type of light emitting unit 510c corresponding to the third opening 400ac can mean that the orthographic projection of the third type of light emitting unit 510c on the substrate 100 can be located in the orthographic projection of the third opening 400ac on the substrate 100.

[0127] Optionally, the overlapping area between the first type of light emitting unit 510a and the first inner wall surface 401 is less than the overlapping area between the first type of light emitting unit 510a and the second inner wall surface 402, so that the first electrode 610 in the first opening 400aa can better overlap with the first inner wall surface 401 without being affected by the shielding of the first type of light emitting unit 510a, thereby better improving the overlapping area of the first electrode 610 in the first opening 400aa and the first inner wall surface 401.

[0128] Optionally, the overlapping area between the first type of light emitting unit 510a and the second inner wall surface 402 is greater than zero, that is, the second edge part 512 of the first type of light emitting unit 510a can overlap with the second inner wall surface 402, so that when the evaporation angle during evaporation is adjusted without changing the size of the first type of light emitting unit 510a, the amount of material of the first type of light emitting unit 510a formed on the first inner wall surface 401 can be better reduced, thereby facilitating the realization that the overlapping area between the first type of light emitting unit 510a and the first inner wall surface 401 in the first opening 400aa is less than the overlapping area between the first type of light emitting unit 510a and the second inner wall surface 402.

[0129] Optionally, the overlapping area between the second type of light emitting unit 510b and the first inner wall surface 401 is less than the overlapping area between the second type of light emitting unit 510b and the second inner wall surface 402, so that the first electrode 610 in the second opening 400ab can better overlap with the first inner wall surface 401 without being affected by the shielding of the second type of light emitting unit 510b, thereby better improving the overlapping area of the first electrode 610 in the second opening 400ab and the first inner wall surface 401.

[0130] Optionally, the overlapping area between the second type of light emitting unit 510b and the second inner wall surface 402 is greater than zero, that is, the second edge part 512 of the second type of light emitting unit 510b can overlap with the second inner wall surface 402, so that when the evaporation angle during evaporation is adjusted without changing the size of the second type of light emitting unit 510b, the amount of material of the second type of light emitting unit 510b formed on the first inner wall surface 401 can be better reduced, thereby facilitating the realization that the overlapping area between the second type of light emitting unit 510b and the first inner wall surface 401 in the second opening 400ab is less than the overlapping area between the second type of light emitting unit 510b and the second inner wall surface 402.

[0131] Optionally, the overlapping area between the third type of light emitting unit 510c and the first inner wall surface 401 is less than the overlapping area between the third type of light emitting unit 510c and the second inner wall surface 402, so that the first electrode 610 in the third opening 400ac can better overlap with the first inner wall surface 401 without being affected by the shielding of the third type of light emitting unit 510c, thereby better improving the overlapping area between the first electrode 610 in the third opening 400ac and the first inner wall surface 401.

[0132] Optionally, the overlapping area between the third type of light emitting unit 510c and the second inner wall surface 402 is greater than zero, that is, the second edge portion 512 of the third type of light emitting unit 510c can overlap with the second inner wall surface 402, so that when the evaporation angle during evaporation is adjusted without changing the size of the third type of light emitting unit 510c, the amount of material of the third type of light emitting unit 510c formed on the first inner wall surface 401 can be better reduced, thereby facilitating the realization of the overlapping area between the third type of light emitting unit 510c in the third opening 400ac and the first inner wall surface 401 being less than the overlapping area between the third type of light emitting unit 510c and the second inner wall surface 402.

[0133] In these optional embodiments, the thicknesses of the first type of light emitting unit 510a, the second type of light emitting unit 510b, and the third type of light emitting unit 510c can be different. For example, the average thickness of the first type of light emitting unit 510a can be greater than the average thickness of the second type of light emitting unit 510b. For example, the average thickness of the third type of light emitting unit 510c can be less than the average thickness of the first type of light emitting unit 510a, and the average thickness of the third type of light emitting unit 510c can be greater than the average thickness of the second type of light emitting unit 510b.

[0134] For ease of description, the following embodiments are described by way of example with the average thicknesses of the first type of light emitting unit 510a, the third type of light emitting unit 510c, and the second type of light emitting unit 510b gradually decreasing.

[0135] In some embodiments of the present application, the light emitting unit 510 can have certain electrical conductivity, that is, the light emitting unit 510 can transmit a certain amount of current.

[0136] Optionally, when the first electrode 610 and the light emitting unit 510 simultaneously overlap with the isolation structure 400, the light emitting unit 510 has electrical conductivity, and when the isolation structure 400 transmits current to the first electrode 610, the light emitting unit 510 will simultaneously shunt part of the transmitted current, resulting in high impedance of the transmitted current of the first electrode 610, wherein the thickness of the light emitting unit 510 easily affects the impedance of the light emitting unit 510 itself, for example, the thicker the thickness of the light emitting unit 510, the higher the impedance of the light emitting unit 510 itself, and the greater the loss of the transmitted current of the first electrode 610.

[0137] Specifically, when the thicker first-type light-emitting unit 510a is located between the first electrode 610 and the isolation structure 400, the current flowing between the first electrode 610 and the isolation structure 400 will have a large impedance when it reaches the first-type light-emitting unit 510a. Therefore, only the portion of the first electrode 610 that is in direct contact with the isolation structure 400 can achieve a good electrical connection with the isolation structure 400, while the portion of the first electrode 610 located above the first-type light-emitting unit 510a cannot achieve a good electrical connection with the isolation structure 400. Therefore, when there are too many first-type light-emitting units 510a between the first electrode 610 and the isolation structure 400, the effective electrical connection area between the first electrode 610 and the isolation structure 400 is small, which is not conducive to reducing the power consumption of the display panel 10.

[0138] When the thinner second-type light-emitting unit 510b is located between the first electrode 610 and the isolation structure 400, the impedance between the first electrode 610 and the isolation structure 400 is relatively small. Therefore, both the portion of the first electrode 610 above the second-type light-emitting unit 510b and the portion of the first electrode 610 in direct contact with the isolation structure 400 can achieve a good electrical connection with the isolation structure 400. Therefore, when there is a second-type light-emitting unit 510b of a certain thickness between the first electrode 610 and the isolation structure 400, the effective electrical connection area between the first electrode 610 and the isolation structure 400 should not be too small, allowing the display panel 10 to have a suitable resistance.

[0139] Therefore, the overlap relationship between each light-emitting unit 510 and the isolation structure 400 can be further refined according to the thickness of the first type of light-emitting unit 510a, the second type of light-emitting unit 510b and the third type of light-emitting unit 510c, so as to further improve the overlap effect between the first electrode 610 and the isolation structure 400 and improve the working stability of the display panel 10.

[0140] like Figure 5 As shown, in some optional embodiments, the first edge portion 511 of the first type of light-emitting unit 510a and the first edge portion 511 of the second type of light-emitting unit 510b can overlap with the first inner wall surface 401. The minimum distance between the orthographic projection of the edge of the first edge portion 511 of the first type of light-emitting unit 510a away from the middle portion 513 on the substrate 100 and the orthographic projection of the edge of the first inner wall surface 401 towards the isolation opening 400a on the substrate 100 is the first sub-distance D1. The minimum distance between the orthographic projection of the edge of the first edge portion 511 of the second type of light-emitting unit 510b away from the middle portion 513 on the substrate 100 and the orthographic projection of the edge of the first inner wall surface 401 towards the isolation opening 400a on the substrate 100 is the second sub-distance D2. The first sub-distance D1 is smaller than the second sub-distance D2.

[0141] Optionally, the first edge portion 511 of the first light emitting unit 510a and the second light emitting unit 510b can only be in contact with the surface of the conductive portion 430 in the first inner wall surface 401, so that the contact area between the first edge portion 511 of the first light emitting unit 510a and the second light emitting unit 510b and the first inner wall surface 401 is not too large, which can facilitate the contact between the first electrode 610 and the first inner wall surface 401 in the first opening 400aa and the second opening 400ab.

[0142] In these optional embodiments, by setting the first sub-pitch D1 to be smaller than the second sub-pitch D2, the contact area between the first edge portion 511 of the first light emitting unit 510a and the first inner wall surface 401 is smaller, which can better reduce the coverage of the first light emitting unit 510a on the isolation structure 400, so that the first electrode 610 can be in direct contact with the first inner wall surface 401 to achieve contact without being affected by the first light emitting unit 510a, which can better improve the effective electrical connection area between the first electrode 610 and the first inner wall surface 401 in the first opening 400aa, reduce the resistance of the display panel 10, and improve the working stability of the display panel 10.

[0143] In addition, since the first light emitting unit 510a has a relatively small thickness, by setting the first sub-pitch D1 to be smaller than the second sub-pitch D2, the first edge portion 511 of the second light emitting unit 510b has a relatively appropriate contact area with the first inner wall surface 401, which can facilitate the preparation of the display panel 10, and also enables the first electrode 610 in the second opening 400ab to be electrically connected to the isolation structure 400 through the second light emitting unit 510b with a relatively small thickness, thereby better improving the effective electrical connection area between the first electrode 610 and the first inner wall surface 401 in the second opening 400ab, and enabling the display panel 10 to have a relatively appropriate resistance.

[0144] Please continue to refer to Figure 5 In some optional embodiments, the first edge portion 511 of the first light emitting unit 510a, the first edge portion 511 of the second light emitting unit 510b, and the first edge portion 511 of the third light emitting unit 510c are all in contact with the first inner wall surface 401, and the minimum distance between the normal projection of the edge of the first edge portion 511 of the third light emitting unit 510c away from the middle portion 513 on the substrate 100 and the normal projection of the edge of the first inner wall surface 401 toward the isolation opening 400a on the substrate 100 is a fifth sub-pitch D5, which can be greater than the first sub-pitch D1 and smaller than the second sub-pitch D2.

[0145] Optionally, the first edge portion 511 of the third light emitting unit 510c can only be in surface contact with the conductive portion 430 of the first inner wall surface 401, so that the area of contact between the first edge portion 511 of the third light emitting unit 510c and the first inner wall surface 401 is not too large, and the first electrode 610 in the third opening 400ac can be easily in contact with the first inner wall surface 401.

[0146] In this optional embodiment, by setting the fifth sub-pitch D5 to be smaller than the second sub-pitch D2, the area of contact between the first edge portion 511 of the third light emitting unit 510c and the first inner wall surface 401 can be moderate, so that the third light emitting unit 510c with a moderate thickness has a small coverage of the isolation structure 400, and the first electrode 610 can be in direct contact with the first inner wall surface 401 to achieve contact without being blocked by the third light emitting unit 510c, thereby reducing the resistance of the display panel 10 and improving the working stability of the display panel 10.

[0147] In addition, since the third light emitting unit 510c has a moderate thickness, by setting the fifth sub-pitch D5 to be greater than the first sub-pitch D1, the first edge portion 511 of the third light emitting unit 510c has a suitable contact area with the first inner wall surface 401, which can facilitate the preparation of the display panel 10, and also enables the first electrode 610 in the third opening 400ac to be electrically connected to the isolation structure 400 through the third light emitting unit 510c with a moderate thickness, thereby improving the effective contact area between the first electrode 610 in the third opening 400ac and the first inner wall surface 401, and enabling the display panel 10 to have a suitable resistance.

[0148] Figure 6 is a partial cross-sectional view of a display panel 10 according to another embodiment of the present application.

[0149] As shown in Figure 6 In some optional embodiments, the first edge portion 511 of the first light emitting unit 510a can be spaced apart from the first inner wall surface 401, and the first edge portion 511 of the second light emitting unit 510b can be in contact with the first inner wall surface 401.

[0150] In the optional embodiment, by setting the first edge part 511 of the first type of light emitting unit 510a in the first opening 400aa spaced from the first inner wall surface 401, the influence of the relatively thick first type of light emitting unit 510a on the shielding of the first inner wall surface 401 can be further reduced, so that after the first type of light emitting unit 510a in the first opening 400aa is prepared, the first inner wall surface 401 in the first opening 400aa can be better exposed, so that when the first electrode 610 is prepared in the first opening 400aa, the material of the first electrode 610 can better fall on the surface of the first inner wall surface 401, so that the first electrode 610 can be lapped with a larger area of the first inner wall surface 401, thereby reducing the resistance of the display panel 10 and improving the working stability of the display panel 10.

[0151] Please continue to refer to Figure 6 In some optional embodiments, the first edge part 511 of the second type of light emitting unit 510b and the first edge part 511 of the third type of light emitting unit 510c are both lapped with the first inner wall surface 401, the minimum distance between the normal projection of the edge of the first edge part 511 of the second type of light emitting unit 510b away from one side of the middle part 513 on the substrate 100 and the normal projection of the edge of the first inner wall surface 401 toward one side of the isolation opening 400a on the substrate 100 is a second sub-distance D2, and the minimum distance between the normal projection of the edge of the first edge part 511 of the third type of light emitting unit 510c away from one side of the middle part 513 on the substrate 100 and the normal projection of the edge of the first inner wall surface 401 toward one side of the isolation opening 400a on the substrate 100 is a fifth sub-distance D5, and the fifth sub-distance D5 is less than the second sub-distance D2.

[0152] In the optional embodiment, by setting the first edge part 511 of the second type of light emitting unit 510b and the first edge part 511 of the third type of light emitting unit 510c lapped with the first inner wall surface 401, part of the first electrode 610 in the second opening 400ab can be electrically connected to the isolation structure 400 through the relatively thin second type of light emitting unit 510b, and part of the first electrode 610 in the third opening 400ac can be electrically connected to the isolation structure 400 through the third type of light emitting unit 510c with a moderate thickness.

[0153] By setting the fifth sub-distance D5 less than the second sub-distance D2, the third type of light emitting unit 510c which is slightly thicker than the second type of light emitting unit 510b is less likely to have an excessively large lapped area with the first inner wall surface 401, so that the first electrode 610 in the third opening 400ac can better directly contact and lap with the first inner wall surface 401, thereby enabling the first electrode 610 in the second opening 400ab and the third opening 400ac to have a better effective electrical connection area with the first inner wall surface 401.

[0154] Figure 7 is a partial cross-sectional view of a display panel 10 provided by another embodiment of the present application.

[0155] As shown in FIG. 1, in some optional embodiments, the first edge portion 511 of the first type of light emitting unit 510a and the first edge portion 511 of the third type of light emitting unit 510c are both spaced apart from the first inner wall surface 401, and the first edge portion 511 of the second type of light emitting unit 510b overlaps the first inner wall surface 401. The minimum distance between the first edge portion 511 of the first type of light emitting unit 510a and the first inner wall surface 401 is greater than the minimum distance between the first edge portion 511 of the third type of light emitting unit 510c and the first inner wall surface 401. Figure 7 In this optional embodiment, by spacing apart the first edge portion 511 of the third type of light emitting unit 510c from the first inner wall surface 401 in the third opening 400ac, the third type of light emitting unit 510c with a relatively moderate thickness can better reduce the shielding effect on the first inner wall surface 401. After the third type of light emitting unit 510c in the third opening 400ac is prepared, the first inner wall surface 401 in the third opening 400ac can be better exposed, so that when the first electrode 610 is prepared in the third opening 400ac, the material of the first electrode 610 can better fall on the surface of the first inner wall surface 401, so that the first electrode 610 can overlap the first inner wall surface 401 with a larger area, thereby reducing the resistance of the display panel 10 and improving the working stability of the display panel 10.

[0156] Furthermore, by setting the minimum distance between the first edge portion 511 of the first type of light emitting unit 510a and the first inner wall surface 401 to be greater than the minimum distance between the first edge portion 511 of the third type of light emitting unit 510c and the first inner wall surface 401, when the first electrode 610 in the first opening 400aa is prepared, the first edge portion 511 of the first type of light emitting unit 510a, which is thicker than the third type of light emitting unit 510c, can be farther away from the first inner wall surface 401, so that the surface of the first type of light emitting unit 510a with a relatively thick thickness is less likely to shield the material of the first electrode 610, and the material of the first electrode 610 can better form on the first inner wall surface 401 in the first opening 400aa, so that the first electrode 610 can have a better film forming effect, thereby facilitating the electrical connection effect of the first electrode 610 and the first inner wall surface 401.

[0157]

[0158] is a partial cross-sectional view of a display panel 10 provided by another embodiment of the present application. Figure 8 As shown in FIG. 1, in some optional embodiments, the first edge portion 511 of the first type of light emitting unit 510a and the first edge portion 511 of the third type of light emitting unit 510c are both spaced apart from the first inner wall surface 401, and the first edge portion 511 of the second type of light emitting unit 510b overlaps the first inner wall surface 401. The minimum distance between the first edge portion 511 of the first type of light emitting unit 510a and the first inner wall surface 401 is greater than the minimum distance between the first edge portion 511 of the third type of light emitting unit 510c and the first inner wall surface 401.

[0159] Figure 8 ​As shown, in some optional embodiments, the first edge portion 511 of the first light emitting unit 510a and the first edge portion 511 of the second light emitting unit 510b are both spaced apart from the first inner wall surface 401, and the minimum distance between the first edge portion 511 of the first light emitting unit 510a and the first inner wall surface 401 is greater than the minimum distance between the first edge portion 511 of the second light emitting unit 510b and the first inner wall surface 401.

[0160] In this optional embodiment, by spacing the first edge portion 511 of the second light emitting unit 510b from the first inner wall surface 401 in the second opening 400ab, the first inner wall surface 401 in the second opening 400ab can be better exposed after the second light emitting unit 510b in the second opening 400ab is prepared, so that the material of the first electrode 610 can better fall on the surface of the first inner wall surface 401 when the first electrode 610 is prepared in the second opening 400ab, so that the first electrode 610 can be overlapped with a larger area of the first inner wall surface 401, thereby reducing the resistance of the display panel 10 and improving the working stability of the display panel 10.

[0161] Furthermore, by setting the minimum distance between the first edge portion 511 of the first light emitting unit 510a and the first inner wall surface 401 to be greater than the minimum distance between the first edge portion 511 of the second light emitting unit 510b and the first inner wall surface 401, the first edge portion 511 of the first light emitting unit 510a, which is thicker than the second light emitting unit 510b, can be farther away from the first inner wall surface 401 when the first electrode 610 in the first opening 400aa is prepared, so that the surface of the first light emitting unit 510a with a thicker thickness is less likely to shield the material of the first electrode 610, so that the material of the first electrode 610 can better form on the first inner wall surface 401 in the first opening 400aa, so that the first electrode 610 can have a better film forming effect, so as to improve the electrical connection effect of the first electrode 610 and the first inner wall surface 401.

[0162] Please continue to refer to Figure 8 In some optional embodiments, the first edge portion 511 of the first light emitting unit 510a, the first edge portion 511 of the second light emitting unit 510b, and the first edge portion 511 of the third light emitting unit 510c can all be spaced apart from the first inner wall surface 401, the minimum distance between the first edge portion 511 of the third light emitting unit 510c and the first inner wall surface 401 is greater than the minimum distance between the first edge portion 511 of the second light emitting unit 510b and the first inner wall surface 401, and the minimum distance between the first edge portion 511 of the third light emitting unit 510c and the first inner wall surface 401 is less than the minimum distance between the first edge portion 511 of the first light emitting unit 510a and the first inner wall surface 401.

[0163] In the optional embodiment, by setting the minimum distance between the first edge part 511 of the third type of light emitting unit 510c and the first inner wall surface 401 to be greater than the minimum distance between the first edge part 511 of the second type of light emitting unit 510b and the first inner wall surface 401, when the first electrode 610 in the third opening 400ac is prepared, the first edge part 511 of the third type of light emitting unit 510c, which is slightly thicker than the second type of light emitting unit 510b, can be farther away from the first inner wall surface 401, so that the surface of the third type of light emitting unit 510c with a thicker thickness is not easy to cause shielding effect on the material of the first electrode 610, so that the material of the first electrode 610 can be better formed on the first inner wall surface 401 in the third opening 400ac, so that the first electrode 610 can have a better film forming effect, so as to improve the electrical connection effect of the first electrode 610 and the first inner wall surface 401.

[0164] Please refer to Figures 5 to 8 In some optional embodiments, the second edge part 512 of the first type of light emitting unit 510a and the second edge part 512 of the second type of light emitting unit 510b are both overlapped with the second inner wall surface 402, and the overlapping area between the first type of light emitting unit 510a and the second inner wall surface 402 can be greater than the overlapping area between the second type of light emitting unit 510b and the second inner wall surface 402.

[0165] Optionally, the minimum distance between the normal projection of the edge of the second edge part 512 of the first type of light emitting unit 510a away from one side of the middle part 513 on the substrate 100 and the normal projection of the edge of the second inner wall surface 402 toward one side of the isolation opening 400a on the substrate 100 is a third sub-distance D3, and the minimum distance between the normal projection of the edge of the second edge part 512 of the second type of light emitting unit 510b away from one side of the middle part 513 on the substrate 100 and the normal projection of the edge of the second inner wall surface 402 toward one side of the isolation opening 400a on the substrate 100 is a fourth sub-distance D4, and the third sub-distance D3 is greater than the fourth sub-distance D4.

[0166] Optionally, the third sub-distance D3 is greater than the first sub-distance D1, so as to realize that the overlapping area between the first type of light emitting unit 510a and the first inner wall surface 401 is less than the overlapping area between the first type of light emitting unit 510a and the second inner wall surface 402. Optionally, the fourth sub-distance D4 is greater than the second sub-distance D2, so as to realize that the overlapping area between the second type of light emitting unit 510b and the first inner wall surface 401 is less than the overlapping area between the second type of light emitting unit 510b and the second inner wall surface 402.

[0167] Optionally, the second edge portion 512 of the first type of light emitting unit 510a can be overlapped with the surface of the first isolation portion 410 and the conductive portion 430 in the second inner wall surface 402, so that the second edge portion 512 of the first type of light emitting unit 510a has a larger overlapping area with the second inner wall surface 402, so that when the evaporation angle during evaporation is adjusted without changing the size of the first type of light emitting unit 510a, the amount of material of the first type of light emitting unit 510a formed on the first inner wall surface 401 can be reduced, thereby facilitating the increase of the overlapping area of the first electrode 610 in the first opening 400aa and the first inner wall surface 401, and thereby better improving the effective electrical connection area of the first electrode 610 in the first opening 400aa and the first inner wall surface 401.

[0168] Optionally, the second edge portion 512 of the second type of light emitting unit 510b can only be overlapped with the surface of the conductive portion 430 in the second inner wall surface 402, so that the overlapping area between the second edge portion 512 of the second type of light emitting unit 510b and the second inner wall surface 402 is not easy to be too large, and the preparation difficulty of the second type of light emitting unit 510b can be reduced.

[0169] Optionally, the height of the second edge portion 512 of the first type of light emitting unit 510a extending to the second inner wall surface 402 is greater than the height of the second edge portion 512 of the second type of light emitting unit 510b extending to the second inner wall surface 402, so as to facilitate the overlapping area between the first type of light emitting unit 510a and the second inner wall surface 402 to be greater than the overlapping area between the second type of light emitting unit 510b and the second inner wall surface 402.

[0170] For example, the maximum distance between the surface of the second edge portion 512 of the first type of light emitting unit 510a away from the substrate 100 and the substrate 100 can be greater than the maximum distance between the surface of the second edge portion 512 of the second type of light emitting unit 510b away from the substrate 100 and the substrate 100.

[0171] In these optional embodiments, by setting the overlap area between the first type of light emitting units 510a and the second inner wall surface 402 to be greater than the overlap area between the second type of light emitting units 510b and the second inner wall surface 402, for example, by setting the third sub-pitch D3 to be greater than the fourth sub-pitch D4, the material of the first type of light emitting units 510a can be formed on the second inner wall surface 402 within the first opening 400aa without changing the size of the first type of light emitting units 510a, so as to facilitate the formation of the material of the first type of light emitting units 510a on the first inner wall surface 401 within the first opening 400aa, thereby facilitating the realization of the material of the first type of light emitting units 510a being less likely to affect the overlap between the first electrode 610 and the first inner wall surface 401 compared to the material of the second type of light emitting units 510b, so that the first electrode 610 within the first opening 400aa can better overlap with the first inner wall surface 401.

[0172] Please refer to Figures 5 to 8 In some optional embodiments, the second edge portion 512 of the first type of light emitting units 510a, the second edge portion 512 of the second type of light emitting units 510b, and the second edge portion 512 of the third type of light emitting units 510c all overlap with the second inner wall surface 402, the overlap area between the third type of light emitting units 510c and the second inner wall surface 402 is less than the overlap area between the first type of light emitting units 510a and the second inner wall surface 402, and the overlap area between the third type of light emitting units 510c and the second inner wall surface 402 is greater than the overlap area between the second type of light emitting units 510b and the second inner wall surface 402.

[0173] Optionally, the minimum distance between the normal projection of the edge of the second edge portion 512 of the third type of light emitting units 510c away from the middle portion 513 on the substrate 100 and the normal projection of the edge of the second inner wall surface 402 facing the side of the isolation opening 400a on the substrate 100 is a sixth sub-pitch D6, the sixth sub-pitch D6 is greater than the fourth sub-pitch D4 and less than the third sub-pitch D3.

[0174] Optionally, the sixth sub-pitch D6 is greater than the fifth sub-pitch D5, so as to facilitate the realization of the overlap area between the third type of light emitting units 510c and the first inner wall surface 401 being less than the overlap area between the third type of light emitting units 510c and the second inner wall surface 402.

[0175] Optionally, the second edge portion 512 of the third type of light emitting units 510c can only overlap with the surface of the conductive portion 430 of the second inner wall surface 402, so that the overlap area between the second edge portion 512 of the third type of light emitting units 510c and the second inner wall surface 402 is not too large, and the preparation difficulty of the second type of light emitting units 510b can be reduced.

[0176] The second edge portion 512 of the optional third light emitting unit 510c can be overlapped with the surface of the first isolation portion 410 and the conductive portion 430 in the second inner wall surface 402, so that the second edge portion 512 of the third light emitting unit 510c has a larger overlapping area with the second inner wall surface 402, so that when the evaporation angle during evaporation is adjusted without changing the size of the third light emitting unit 510c, the amount of material of the third light emitting unit 510c formed on the first inner wall surface 401 can be reduced, thereby facilitating the improvement of the overlapping area of the first electrode 610 in the third opening 400ac and the first inner wall surface 401, and further improving the effective electrical connection area of the first electrode 610 in the third opening 400ac and the first inner wall surface 401.

[0177] Optionally, the height of the second edge portion 512 of the third light emitting unit 510c extending to the second inner wall surface 402 is less than the height of the second edge portion 512 of the first light emitting unit 510a extending to the second inner wall surface 402, and / or the height of the second edge portion 512 of the third light emitting unit 510c extending to the second inner wall surface 402 is greater than the height of the second edge portion 512 of the second light emitting unit 510b extending to the second inner wall surface 402, so as to facilitate the realization that the overlapping area between the third light emitting unit 510c and the second inner wall surface 402 is less than the overlapping area between the first light emitting unit 510a and the second inner wall surface 402, and the overlapping area between the third light emitting unit 510c and the second inner wall surface 402 is greater than the overlapping area between the second light emitting unit 510b and the second inner wall surface 402.

[0178] For example, the maximum distance between the surface of the second edge portion 512 of the third light emitting unit 510c away from the substrate 100 and the substrate 100 can be less than the maximum distance between the surface of the second edge portion 512 of the first light emitting unit 510a away from the substrate 100 and the substrate 100, and the maximum distance between the surface of the second edge portion 512 of the third light emitting unit 510c away from the substrate 100 and the substrate 100 can be greater than the maximum distance between the surface of the second edge portion 512 of the second light emitting unit 510b away from the substrate 100 and the substrate 100.

[0179] In these optional embodiments, by setting the overlap area between the third type of light emitting units 510c and the second inner wall surface 402 to be greater than the overlap area between the second type of light emitting units 510b and the second inner wall surface 402, for example, by setting the sixth sub-pitch D6 to be greater than the fourth sub-pitch D4, the material of the third type of light emitting units 510c can be formed on the second inner wall surface 402 within the third opening 400ac in a larger amount without changing the size of the third type of light emitting units 510c, so as to realize that the material of the third type of light emitting units 510c is formed on the first inner wall surface 401 within the third opening 400ac in a smaller amount, thereby facilitating the realization that the material of the third type of light emitting units 510c is less likely to affect the overlap between the first electrode 610 and the first inner wall surface 401 compared to the material of the second type of light emitting units 510b, so that the first electrode 610 within the third opening 400ac can better overlap with the first inner wall surface 401.

[0180] By setting the overlap area between the third type of light emitting units 510c and the second inner wall surface 402 to be less than the overlap area between the first type of light emitting units 510a and the second inner wall surface 402, for example, by setting the sixth sub-pitch D6 to be less than the third sub-pitch D3, the material of the first type of light emitting units 510a can be less likely to affect the overlap between the first electrode 610 and the first inner wall surface 401 compared to the material of the third type of light emitting units 510c, so that the first electrode 610 within the first opening 400aa can better overlap with the first inner wall surface 401, which can be facilitated to realize in the foregoing embodiments.

[0181] Figure 9 is a partial cross-sectional view of a display panel 10 provided by another embodiment of the present application.

[0182] As shown in Figure 9 some optional embodiments, the overlap area between the first electrode 610 and the first inner wall surface 401 within at least part of the isolation opening 400a can be greater than the overlap area between the first electrode 610 and the second inner wall surface 402 by reasonably setting the arrangement position of each first electrode 610 within the isolation opening 400a.

[0183] Optionally, in the preparation process of the display panel 10, the size of the evaporation range of the first electrode 610 can not be changed, and only the evaporation angle during evaporation can be adjusted, for example, only by adjusting the movement angle of the material of the first electrode 610 emitted from the evaporation source 20, so that the material of the first electrode 610 can fall into at least part of the isolation opening 400a asymmetrically, thereby making the overlap area between the first electrode 610 and the first inner wall surface 401 within this part of the isolation opening 400a greater than the overlap area between the first electrode 610 and the second inner wall surface 402.

[0184] In the optional embodiments, when the overlapping area between the first electrode 610 and the first inner wall surface 401 is larger than the overlapping area between the first electrode 610 and the second inner wall surface 402 by adjusting the evaporation angle during evaporation, the change of the evaporation angle can help to reduce the shielding interference of the side surface of the light emitting unit 510 away from the substrate 100 to the first electrode 610 material, so that the material of the first electrode 610 can better fall on the first inner wall surface 401 when the first electrode 610 is prepared, so that the first electrode 610 formed on the first inner wall surface 401 can have better film forming quality, for example, the first electrode 610 formed on the first inner wall surface 401 can have better continuity and thickness uniformity. Therefore, compared with the scheme in the related art that the first electrode 610 is more symmetrically arranged in the isolation opening 400a, that is, compared with the scheme in the related art that the overlapping area between the first electrode 610 and the first inner wall surface 401 is equal to the overlapping area between the first electrode 610 and the second inner wall surface 402, the film forming quality of the first electrode 610 on the first inner wall surface 401 in the embodiment of the present application can be better than the film forming quality of the first electrode 610 on the first inner wall surface 401 and the second inner wall surface 402 in the related art, thereby the resistance of the display panel 10 can be better reduced, and the working stability of the display panel 10 can be improved.

[0185] In some embodiments of the present application, referring to any of the foregoing embodiments, the overlapping area between the first electrode 610 and the first inner wall surface 401 and the second inner wall surface 402 can be adjusted only by adjusting the overlapping area between the light emitting unit 510 and the first inner wall surface 401 and the second inner wall surface 402 in the isolation opening 400a. Alternatively, the overlapping area between the first electrode 610 and the first inner wall surface 401 and the second inner wall surface 402 can be adjusted only by adjusting the relative positional relationship between the first electrode 610 and the first inner wall surface 401 and the second inner wall surface 402, that is, only by setting the arrangement position of each first electrode 610 in the isolation opening 400a. Alternatively, as shown in the following table, the overlapping area between the first electrode 610 and the first inner wall surface 401 and the second inner wall surface 402 can also be adjusted by simultaneously adjusting the relative positional relationship between the first electrode 610 and the first inner wall surface 401 and the second inner wall surface 402 and adjusting the overlapping area between the light emitting unit 510 below each first electrode 610 and the first inner wall surface 401 or the second inner wall surface 402. Figure 9

[0186] ​When the overlap area between the light emitting unit 510 and the first inner wall surface 401 in the at least partially isolated gap 400a is less than the overlap area between the light emitting unit 510 and the second inner wall surface 402, and the overlap area between the first electrode 610 and the first inner wall surface 401 is greater than the overlap area between the first electrode 610 and the second inner wall surface 402, the setting position of the first electrode 610 in the isolated gap 400a can be offset from the setting position of the light emitting unit 510, that is, the material of the first electrode 610 in the isolated gap 400a can be offset from the material of the light emitting unit 510, so as to further facilitate the overlap between the first electrode 610 and the first inner wall surface 401 in the isolated gap 400a, and ensure that the first electrode 610 has sufficient overlap area, thereby further reducing the overlap resistance between the first electrode 610 and the isolation structure 400, and improving the working stability of the display panel 10.

[0187] In some optional embodiments, the first electrode 610 includes a main body part 613, and first and second connecting parts 611 and 612 disposed on both sides of the main body part 613. For example, the first electrode 610 includes a main body part 613, and first and second connecting parts 611 and 612 disposed on both sides of the main body part 613 in a specific direction.

[0188] Optionally, the main body part 613 can be located in the pixel opening 320, and the first and second connecting parts 611 and 612 can be located outside the pixel opening 320.

[0189] Optionally, the overlap area between the first electrode 610 and the first inner wall surface 401 in the at least partially isolated gap 400a can be greater than the overlap area between the first electrode 610 and the second inner wall surface 402, which can mean that the overlap area between the first connecting part 611 and the first inner wall surface 401 in the at least partially isolated gap 400a is greater than the overlap area between the second connecting part 612 and the second inner wall surface 402.

[0190] Optionally, the overlap area between the first connecting part 611 and the first inner wall surface 401 can be greater than zero, that is, the first connecting part 611 can overlap with the first inner wall surface 401.

[0191] Optionally, the first connecting part 611 can overlap with the surface of the first isolation part 410 and the surface of the conductive part 430 in the first inner wall surface 401, so that the first connecting part 611 can have a larger overlap area with the first inner wall surface 401.

[0192] In some embodiments of the present application, the first electrode 610 and the second inner wall surface 402 can have various relative positional relationships.

[0193] For example, Figure 9As shown, in some optional embodiments, the second connecting portion 612 of the at least partial first electrode 610 can be overlapped with the second inner wall surface 402, i.e., the overlapped area between the second connecting portion 612 in the isolation gap 400a and the second inner wall surface 402 can be greater than zero.

[0194] Optionally, the second connecting portion 612 in the isolation gap 400a can only be overlapped with the surface of the conductive portion 430 in the second inner wall surface 402.

[0195] Optionally, the height of the first connecting portion 611 extending to the first inner wall surface 401 is greater than the height of the second connecting portion 612 extending to the second inner wall surface 402, so as to realize that the overlapped area between the first electrode 610 and the first inner wall surface 401 in the isolation gap 400a is greater than the overlapped area between the first electrode 610 and the second inner wall surface 402. For example, the maximum distance between the surface of the first connecting portion 611 away from the substrate 100 and the substrate 100 is greater than the maximum distance between the surface of the second connecting portion 612 away from the substrate 100 and the substrate 100.

[0196] Optionally, the minimum distance between the edge of the first connecting portion 611 away from the main body portion 613 and the edge of the first inner wall surface 401 facing the isolation gap 400a on the substrate 100 is the third distance L3, and the minimum distance between the edge of the second connecting portion 612 away from the main body portion 613 and the edge of the second inner wall surface 402 facing the isolation gap 400a on the substrate 100 is the fourth distance L4, the third distance L3 is greater than the fourth distance L4, so that the overlapping part of the projection of the first connecting portion 611 on the substrate 100 and the projection of the first inner wall surface 401 on the substrate 100 is larger, and the overlapping part of the projection of the second connecting portion 612 on the substrate 100 and the projection of the second inner wall surface 402 on the substrate 100 is smaller, so that the contact area of the first connecting portion 611 and the first inner wall surface 401 can be greater than the contact area of the second connecting portion 612 and the second inner wall surface 402, i.e., the overlapped area between the first electrode 610 and the first inner wall surface 401 in the isolation gap 400a can be greater than the overlapped area between the first electrode 610 and the second inner wall surface 402, so as to better improve the overlapped area between the first electrode 610 and the first inner wall surface 401, reduce the resistance of the display panel 10, and improve the working stability of the display panel 10.

[0197] Figure 10 is a partial sectional view of a display panel 10 provided in another embodiment of the present application.

[0198] As Figure 10As shown, in some alternative embodiments, at least a portion of the second connection portion 612 of the first electrode 610 is spaced apart from the second inner wall surface 402, that is, the overlap area between the second connection portion 612 and the second inner wall surface 402 within at least a portion of the isolation opening 400a may be equal to zero.

[0199] Optionally, the orthographic projection of the edge of the second connecting portion 612 in at least part of the isolation opening 400a on the side away from the main body portion 613 on the substrate 100 may be located outside the orthographic projection of the second inner wall surface 402 on the substrate 100. For example, the orthographic projection of the edge of the second connecting portion 612 in at least part of the isolation opening 400a on the side away from the main body portion 613 on the substrate 100 may be located on the side of the second inner wall surface 402 on the substrate 100 facing the pixel opening 320.

[0200] In these optional embodiments, by setting at least a partial isolation between the first edge portion 511 within the opening 400a and the first inner wall surface 401, when adjusting the vapor deposition angle during vapor deposition without changing the size of the first electrode 610, a smaller amount of material of the first electrode 610 can be formed on the second inner wall surface 402, so that a larger amount of material of the first electrode 610 can be formed on the first inner wall surface 401, allowing the first electrode 610 to overlap with a larger area of ​​the first inner wall surface 401, thereby reducing the resistance of the display panel 10 and improving the working stability of the display panel 10.

[0201] like Figures 4 to 10 As shown, in some optional embodiments, at least one of the light-emitting unit 510 and the first electrode 610 in each isolation opening 400a overlaps with the first inner wall surface 401, and / or, at least one of the light-emitting unit 510 and the first electrode 610 in each isolation opening 400a overlaps with the second inner wall surface 402.

[0202] Optionally, the first electrode 610 in each isolation opening 400a may overlap with the first inner wall surface 401, and the light-emitting unit 510 in each isolation opening 400a may overlap with the second inner wall surface 402.

[0203] In the optional embodiment, by setting at least one of the light emitting unit 510 and the first electrode 610 in each isolation opening 400a to overlap with the first inner wall surface 401, and setting at least one of the light emitting unit 510 and the first electrode 610 in each isolation opening 400a to overlap with the second inner wall surface 402, the inner wall of the isolation opening 400a can be covered by at least one of the first electrode 610 and the light emitting unit 510, so that the material of the light emitting unit 510 and the material of the first electrode 610 in each isolation opening 400a can protect the inner wall of the isolation opening 400a, so that in the preparation process of the display panel 10, the etching material is not easy to damage the isolation structure 400, and the structural stability of the isolation structure 400 can be better improved.

[0204] Please refer to Figures 1 to 10 The embodiment of the first aspect of the present application also provides a display panel 10, comprising: a substrate 100; an isolation structure 400 arranged on one side of the substrate 100 and enclosing to form an isolation opening 400a, the isolation opening 400a having opposite first and second inner wall surfaces 401 and 402; a light emitting layer 500 comprising a light emitting unit 510 located in the isolation opening 400a; and a first electrode layer 600 comprising a first electrode 610 arranged on the side of the light emitting unit 510 away from the substrate 100, the first electrode 610 at least overlapping the first inner wall surface 401, wherein the overlapping area between the light emitting unit 510 and the first inner wall surface 401 in at least part of the isolation opening 400a is smaller than the overlapping area between the light emitting unit 510 and the second inner wall surface 402.

[0205] In the display panel 10 provided by the embodiment of the present application, the display panel 10 comprises a substrate 100, an isolation structure 400, a light emitting layer 500 and a first electrode layer 600, the isolation structure 400 is arranged on one side of the substrate 100 and encloses to form an isolation opening 400a, the light emitting layer 500 comprises a light emitting unit 510 located in the isolation opening 400a, and the isolation structure 400 can be used to divide the sub-pixels of the display panel 10.

[0206] The isolation opening 400a has opposite first and second inner wall surfaces 401 and 402. For example, the isolation opening 400a can have opposite first and second inner wall surfaces 401 and 402 in a certain direction. The certain direction can be any of the above-mentioned certain directions, and the certain direction intersects the thickness direction Z of the display panel 10, for example, the certain direction can be perpendicular to the thickness direction Z of the display panel 10.

[0207] The first electrode layer 600 includes a first electrode 610 disposed on a side of the light emitting unit 510 away from the substrate 100. The first electrode 610 can at least overlap the first inner wall surface 401, so that the first electrodes 610 of adjacent sub-pixels can be electrically connected through the isolation structure 400, facilitating control of the first electrodes 610 in the display panel 10 and reducing the control difficulty of the display panel 10.

[0208] By setting the overlapping area between the light emitting unit 510 and the first inner wall surface 401 in at least part of the isolation opening 400a to be smaller than the overlapping area between the light emitting unit 510 and the second inner wall surface 402, the first electrode 610 can better overlap the first inner wall surface 401 without being affected by the light emitting unit 510. This can better increase the overlapping area between the first electrode 610 and the first inner wall surface 401, thereby better reducing the resistance of the display panel 10 and improving the working stability of the display panel 10.

[0209] Optionally, the display panel 10 according to the first aspect of the present application also provides a display panel 10 according to any one of the preceding embodiments. Therefore, the display panel 10 according to the embodiments of the present application can have the beneficial effects of the display panel 10 according to any one of the preceding embodiments, which will not be described in detail herein.

[0210] Optionally, in the display panel 10 according to the first aspect of the present application, the relative positional relationship between the first electrode 610 and the first inner wall surface 401 and the second inner wall surface 402 and the overlapping area between the light emitting unit 510 and the first inner wall surface 401 or the second inner wall surface 402 below each first electrode 610 can be adjusted to adjust the electrical connection effect between the first electrode 610 and the isolation structure 400. In addition, the relative positional relationship between the first electrode 610 and the first inner wall surface 401 and the second inner wall surface 402 and the overlapping area between the light emitting unit 510 and the first inner wall surface 401 or the second inner wall surface 402 below each first electrode 610 can be adjusted at the same time to adjust the electrical connection effect between the first electrode 610 and the isolation structure 400.

[0211] The display device according to the second aspect of the present application includes the display panel 10 according to any one of the preceding embodiments. Since the display device according to the second aspect of the present application includes the display panel 10 according to any one of the first aspect of the present application, the display device according to the second aspect of the present application has the beneficial effects of the display panel 10 according to any one of the first aspect of the present application, which will not be described in detail herein.

[0212] The display device in the embodiments of the present application includes but is not limited to a mobile phone, a personal digital assistant (PDA), a tablet computer, an electronic book, a television, an access control, a smart fixed telephone, a control console and the like devices having a display function.

[0213] In accordance with the embodiments of the present application as described above, the embodiments do not describe all the details and limit the application to only the specific embodiments. Obviously, many modifications and variations can be made in light of the above teachings. The description of the embodiments was chosen and described in order to explain the principles of the application and its practical application to enable others skilled in the art to best utilize the application and various embodiments with various modifications as are suited to the particular use contemplated. The application is only limited by the claims and the full scope of equivalents, and equivalents thereof.

Claims

1. A display panel, characterized in that, include: substrate; An isolation structure is disposed on one side of the substrate and encloses an isolation opening, the isolation opening having a first inner wall surface and a second inner wall surface facing each other; The light-emitting layer includes light-emitting units located within the isolation opening; The first electrode layer includes a first electrode disposed on the side of the light-emitting unit opposite to the substrate, wherein the overlap area between the first electrode and the first inner wall surface within at least a portion of the isolation opening is greater than the overlap area between the first electrode and the second inner wall surface. At least part of the overlap area between the light-emitting unit and the first inner wall surface within the isolation opening is smaller than the overlap area between the light-emitting unit and the second inner wall surface.

2. The display panel according to claim 1, characterized in that, At least some of the light-emitting units overlap with both the first inner wall surface and the second inner wall surface, and / or, at least some of the light-emitting units are spaced apart from the first inner wall surface and overlap with the second inner wall surface.

3. The display panel according to claim 1, characterized in that, The orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection range of the first electrode layer on the substrate.

4. The display panel according to claim 1, characterized in that, At least some of the light-emitting units are spaced apart from both the first inner wall surface and the second inner wall surface.

5. The display panel according to claim 1, characterized in that, The light-emitting unit includes a middle portion and a first edge portion and a second edge portion disposed opposite to each other on both sides of the middle portion. At least a portion of the first edge portion of the light-emitting unit overlaps with the first inner wall surface, and the second edge portion overlaps with the second inner wall surface. The minimum distance between the orthographic projection of the edge of the first edge portion away from the middle portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is a first distance. The minimum distance between the orthographic projection of the edge of the second edge portion away from the middle portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is a second distance. The first distance is smaller than the second distance. And / or, at least a portion of the first edge portion of the light-emitting unit is spaced apart from the first inner wall surface, and the second edge portion overlaps with the second inner wall surface.

6. The display panel according to claim 5, characterized in that, The isolation opening includes a first opening and a second opening. The light-emitting unit includes a first type of light-emitting unit corresponding to the first opening and a second type of light-emitting unit corresponding to the second opening. The average thickness of the first type of light-emitting unit is greater than the average thickness of the second type of light-emitting unit. Wherein, the second edge portion of the first type of light-emitting unit and the second edge portion of the second type of light-emitting unit both overlap with the second inner wall surface, and the overlap area between the first type of light-emitting unit and the second inner wall surface is greater than the overlap area between the second type of light-emitting unit and the second inner wall surface.

7. The display panel according to claim 6, characterized in that, The minimum distance between the orthographic projection of the edge of the second edge portion of the first type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is the third sub-distance. The minimum distance between the orthographic projection of the edge of the second edge portion of the second type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is the fourth sub-distance. The third sub-distance is greater than the fourth sub-distance.

8. The display panel according to claim 7, characterized in that, The height of the second edge portion of the first type of light-emitting unit extending to the second inner wall surface is greater than the height of the second edge portion of the second type of light-emitting unit extending to the second inner wall surface.

9. The display panel according to claim 6, characterized in that, The first edge portion of the first type of light-emitting unit and the first edge portion of the second type of light-emitting unit both overlap with the first inner wall surface. The minimum distance between the orthographic projection of the edge of the first edge portion of the first type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is the first sub-distance. The minimum distance between the orthographic projection of the edge of the first edge portion of the second type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is the second sub-distance. The first sub-distance is smaller than the second sub-distance. Alternatively, the first edge of the first type of light-emitting unit is spaced apart from the first inner wall surface, and the first edge of the second type of light-emitting unit overlaps with the first inner wall surface; Alternatively, the first edge portion of the first type of light-emitting unit and the first edge portion of the second type of light-emitting unit are both spaced apart from the first inner wall surface, and the minimum distance between the first edge portion of the first type of light-emitting unit and the first inner wall surface is greater than the minimum distance between the first edge portion of the second type of light-emitting unit and the first inner wall surface.

10. The display panel according to any one of claims 6 to 9, characterized in that, The isolation opening further includes a third opening. The light-emitting unit includes a third type of light-emitting unit disposed corresponding to the third opening. The average thickness of the third type of light-emitting unit is less than the average thickness of the first type of light-emitting unit, and the average thickness of the third type of light-emitting unit is greater than the average thickness of the second type of light-emitting unit. The second edge portion of the first type of light-emitting unit, the second edge portion of the second type of light-emitting unit, and the second edge portion of the third type of light-emitting unit all overlap with the second inner wall surface. The overlap area between the third type of light-emitting unit and the second inner wall surface is less than the overlap area between the first type of light-emitting unit and the second inner wall surface, and the overlap area between the third type of light-emitting unit and the second inner wall surface is greater than the overlap area between the second type of light-emitting unit and the second inner wall surface.

11. The display panel according to claim 10, characterized in that, The minimum distance between the orthographic projection of the edge of the second edge portion of the first type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is the third sub-distance. The minimum distance between the orthographic projection of the edge of the second edge portion of the second type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is the fourth sub-distance. The minimum distance between the orthographic projection of the edge of the second edge portion of the third type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is the sixth sub-distance. The sixth sub-distance is greater than the fourth sub-distance and less than the third sub-distance.

12. The display panel according to claim 11, characterized in that, The height of the second edge portion of the third type of light-emitting unit extending to the second inner wall surface is less than the height of the second edge portion of the first type of light-emitting unit extending to the second inner wall surface, and / or the height of the second edge portion of the third type of light-emitting unit extending to the second inner wall surface is greater than the height of the second edge portion of the second type of light-emitting unit extending to the second inner wall surface.

13. The display panel according to claim 10, characterized in that, The first edge portion of the first type of light-emitting unit, the first edge portion of the second type of light-emitting unit, and the first edge portion of the third type of light-emitting unit all overlap with the first inner wall surface. The minimum distance between the orthographic projection of the edge of the first edge portion of the first type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is a first sub-distance. The minimum distance between the orthographic projection of the edge of the first edge portion of the second type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is a second sub-distance. The minimum distance between the orthographic projection of the edge of the first edge portion of the third type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is a fifth sub-distance. The fifth sub-distance is greater than the first sub-distance and less than the second sub-distance. Alternatively, the first edge of the first type of light-emitting unit is spaced apart from the first inner wall surface, the first edge of the second type of light-emitting unit and the first edge of the third type of light-emitting unit both overlap with the first inner wall surface, the minimum distance between the orthographic projection of the edge of the first edge of the second type of light-emitting unit away from the middle part on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is the second sub-distance, the minimum distance between the orthographic projection of the edge of the first edge of the third type of light-emitting unit away from the middle part on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is the fifth sub-distance, and the fifth sub-distance is smaller than the second sub-distance; Alternatively, the first edge portion of the first type of light-emitting unit and the first edge portion of the third type of light-emitting unit are both spaced apart from the first inner wall surface, the first edge portion of the second type of light-emitting unit overlaps with the first inner wall surface, and the minimum distance between the first edge portion of the first type of light-emitting unit and the first inner wall surface is greater than the minimum distance between the first edge portion of the third type of light-emitting unit and the first inner wall surface. Alternatively, the first edge portion of the first type of light-emitting unit, the first edge portion of the second type of light-emitting unit, and the first edge portion of the third type of light-emitting unit are all spaced apart from the first inner wall surface. The minimum distance between the first edge portion of the third type of light-emitting unit and the first inner wall surface is greater than the minimum distance between the first edge portion of the second type of light-emitting unit and the first inner wall surface, and the minimum distance between the first edge portion of the third type of light-emitting unit and the first inner wall surface is less than the minimum distance between the first edge portion of the first type of light-emitting unit and the first inner wall surface.

14. The display panel according to any one of claims 1 to 9, characterized in that, The first electrode includes a main body and a first connecting portion and a second connecting portion respectively disposed on both sides of the main body. The first connecting portion overlaps with the first inner wall surface. Wherein, at least a portion of the second connecting portion of the first electrode overlaps with the second inner wall surface, the minimum distance between the orthographic projection of the edge of the first connecting portion away from the main body portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is a third distance, the minimum distance between the orthographic projection of the edge of the second connecting portion away from the main body portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is a fourth distance, and the third distance is greater than the fourth distance; And / or, at least a portion of the second connection portion of the first electrode is spaced apart from the second inner wall surface.

15. The display panel according to claim 14, characterized in that, The height of the first connecting portion extending to the first inner wall surface is greater than the height of the second connecting portion extending to the second inner wall surface.

16. The display panel according to any one of claims 1 to 9, characterized in that, The isolation structure includes a first isolation portion and a second isolation portion located on the side of the first isolation portion away from the substrate, wherein the second isolation portion protrudes from the first isolation portion toward the isolation opening.

17. The display panel according to claim 16, characterized in that, The isolation structure further includes a conductive portion disposed on the side of the first isolation portion facing the substrate, wherein the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the conductive portion on the substrate.

18. The display panel according to claim 17, characterized in that, The first inner wall surface includes the first isolation portion, the second isolation portion, and the conductive portion located on the same side facing the isolation opening, and the conductive portion located on the side away from the substrate, and / or, the second inner wall surface includes the first isolation portion, the second isolation portion, and the conductive portion located on the same side facing the isolation opening, and the conductive portion located on the side away from the substrate.

19. The display panel according to claim 17, characterized in that, At least a portion of the first electrode overlaps with the first insulating portion and the conductive portion.

20. The display panel according to claim 17, characterized in that, At least a portion of the first electrode overlaps with the surface of the first insulating portion and the surface of the conductive portion in the first inner wall surface.

21. The display panel according to claim 17, characterized in that, At least a portion of the light-emitting unit is connected to the conductive part, or at least a portion of the light-emitting unit is connected to both the conductive part and the first isolation part.

22. The display panel according to claim 17, characterized in that, At least a portion of the light-emitting unit overlaps with the surface of the conductive portion in the second inner wall surface, or at least a portion of the light-emitting unit overlaps with both the surface of the conductive portion in the second inner wall surface and the surface of the first insulating portion.

23. The display panel according to any one of claims 1 to 9, characterized in that, At least one of the light-emitting unit and the first electrode in each of the isolation openings overlaps with the first inner wall surface, and / or at least one of the light-emitting unit and the first electrode in each of the isolation openings overlaps with the second inner wall surface.

24. A display panel, characterized in that, include: substrate; An isolation structure is disposed on one side of the substrate and encloses an isolation opening, the isolation opening having a first inner wall surface and a second inner wall surface facing each other; The light-emitting layer includes light-emitting units located within the isolation opening; The first electrode layer includes a first electrode disposed on the side of the light-emitting unit opposite to the substrate, wherein the first electrode at least overlaps with the first inner wall surface. Wherein, at least a portion of the overlapping area between the light-emitting unit within the isolation opening and the first inner wall surface is smaller than the overlapping area between the light-emitting unit and the second inner wall surface.

25. The display panel according to claim 24, characterized in that, At least some of the light-emitting units overlap with both the first inner wall surface and the second inner wall surface, and / or, at least some of the light-emitting units are spaced apart from the first inner wall surface and overlap with the second inner wall surface.

26. The display panel according to claim 25, characterized in that, The orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection range of the first electrode layer on the substrate.

27. The display panel according to claim 24, characterized in that, The light-emitting unit includes a middle portion and a first edge portion and a second edge portion disposed opposite to each other on both sides of the middle portion. At least a portion of the first edge portion of the light-emitting unit overlaps with the first inner wall surface, and the second edge portion overlaps with the second inner wall surface. The minimum distance between the orthographic projection of the edge of the first edge portion away from the middle portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is a first distance. The minimum distance between the orthographic projection of the edge of the second edge portion away from the middle portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is a second distance. The first distance is smaller than the second distance. And / or, at least a portion of the first edge portion of the light-emitting unit is spaced apart from the first inner wall surface, and the second edge portion overlaps with the second inner wall surface.

28. The display panel according to claim 27, characterized in that, The isolation opening includes a first opening and a second opening. The light-emitting unit includes a first type of light-emitting unit corresponding to the first opening and a second type of light-emitting unit corresponding to the second opening. The average thickness of the first type of light-emitting unit is greater than the average thickness of the second type of light-emitting unit. Wherein, the second edge portion of the first type of light-emitting unit and the second edge portion of the second type of light-emitting unit both overlap with the second inner wall surface, and the overlap area between the first type of light-emitting unit and the second inner wall surface is greater than the overlap area between the second type of light-emitting unit and the second inner wall surface.

29. The display panel according to claim 28, characterized in that, The minimum distance between the orthographic projection of the edge of the second edge portion of the first type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is the third sub-distance. The minimum distance between the orthographic projection of the edge of the second edge portion of the second type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is the fourth sub-distance. The third sub-distance is greater than the fourth sub-distance.

30. The display panel according to claim 29, characterized in that, The height of the second edge portion of the first type of light-emitting unit extending to the second inner wall surface is greater than the height of the second edge portion of the second type of light-emitting unit extending to the second inner wall surface.

31. The display panel according to claim 28, characterized in that, The first edge portion of the first type of light-emitting unit and the first edge portion of the second type of light-emitting unit both overlap with the first inner wall surface. The minimum distance between the orthographic projection of the edge of the first edge portion of the first type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is the first sub-distance. The minimum distance between the orthographic projection of the edge of the first edge portion of the second type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is the second sub-distance. The first sub-distance is smaller than the second sub-distance. Alternatively, the first edge of the first type of light-emitting unit is spaced apart from the first inner wall surface, and the first edge of the second type of light-emitting unit overlaps with the first inner wall surface; Alternatively, the first edge portion of the first type of light-emitting unit and the first edge portion of the second type of light-emitting unit are both spaced apart from the first inner wall surface, and the minimum distance between the first edge portion of the first type of light-emitting unit and the first inner wall surface is greater than the minimum distance between the first edge portion of the second type of light-emitting unit and the first inner wall surface.

32. The display panel according to any one of claims 28 to 31, characterized in that, The isolation opening further includes a third opening. The light-emitting unit includes a third type of light-emitting unit disposed corresponding to the third opening. The average thickness of the third type of light-emitting unit is less than the average thickness of the first type of light-emitting unit, and the average thickness of the third type of light-emitting unit is greater than the average thickness of the second type of light-emitting unit. The second edge portion of the first type of light-emitting unit, the second edge portion of the second type of light-emitting unit, and the second edge portion of the third type of light-emitting unit all overlap with the second inner wall surface. The overlap area between the third type of light-emitting unit and the second inner wall surface is less than the overlap area between the first type of light-emitting unit and the second inner wall surface, and the overlap area between the third type of light-emitting unit and the second inner wall surface is greater than the overlap area between the second type of light-emitting unit and the second inner wall surface.

33. The display panel according to claim 32, characterized in that, The minimum distance between the orthographic projection of the edge of the second edge portion of the first type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is the third sub-distance. The minimum distance between the orthographic projection of the edge of the second edge portion of the second type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is the fourth sub-distance. The minimum distance between the orthographic projection of the edge of the second edge portion of the third type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the second inner wall surface facing the isolation opening on the substrate is the sixth sub-distance. The sixth sub-distance is greater than the fourth sub-distance and less than the third sub-distance.

34. The display panel according to claim 33, characterized in that, The height of the second edge portion of the third type of light-emitting unit extending to the second inner wall surface is less than the height of the second edge portion of the first type of light-emitting unit extending to the second inner wall surface, and / or the height of the second edge portion of the third type of light-emitting unit extending to the second inner wall surface is greater than the height of the second edge portion of the second type of light-emitting unit extending to the second inner wall surface.

35. The display panel according to claim 32, characterized in that, The first edge portion of the first type of light-emitting unit, the first edge portion of the second type of light-emitting unit, and the first edge portion of the third type of light-emitting unit all overlap with the first inner wall surface. The minimum distance between the orthographic projection of the edge of the first edge portion of the first type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is a first sub-distance. The minimum distance between the orthographic projection of the edge of the first edge portion of the second type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is a second sub-distance. The minimum distance between the orthographic projection of the edge of the first edge portion of the third type of light-emitting unit away from the middle portion on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is a fifth sub-distance. The fifth sub-distance is greater than the first sub-distance and less than the second sub-distance. Alternatively, the first edge of the first type of light-emitting unit is spaced apart from the first inner wall surface, the first edge of the second type of light-emitting unit and the first edge of the third type of light-emitting unit both overlap with the first inner wall surface, the minimum distance between the orthographic projection of the edge of the first edge of the second type of light-emitting unit away from the middle part on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is the second sub-distance, the minimum distance between the orthographic projection of the edge of the first edge of the third type of light-emitting unit away from the middle part on the substrate and the orthographic projection of the edge of the first inner wall surface facing the isolation opening on the substrate is the fifth sub-distance, and the fifth sub-distance is smaller than the second sub-distance; Alternatively, the first edge portion of the first type of light-emitting unit and the first edge portion of the third type of light-emitting unit are both spaced apart from the first inner wall surface, the first edge portion of the second type of light-emitting unit overlaps with the first inner wall surface, and the minimum distance between the first edge portion of the first type of light-emitting unit and the first inner wall surface is greater than the minimum distance between the first edge portion of the third type of light-emitting unit and the first inner wall surface. Alternatively, the first edge portion of the first type of light-emitting unit, the first edge portion of the second type of light-emitting unit, and the first edge portion of the third type of light-emitting unit are all spaced apart from the first inner wall surface. The minimum distance between the first edge portion of the third type of light-emitting unit and the first inner wall surface is greater than the minimum distance between the first edge portion of the second type of light-emitting unit and the first inner wall surface, and the minimum distance between the first edge portion of the third type of light-emitting unit and the first inner wall surface is less than the minimum distance between the first edge portion of the first type of light-emitting unit and the first inner wall surface.

36. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 35.

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