Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device. The display panel comprises a substrate; the isolation structure is arranged on one side of the substrate, and a plurality of isolation openings are defined by the isolation structure; the light-emitting layer comprises a light-emitting unit at least partially located in the isolation opening; the first packaging layer comprises a plurality of packaging parts used for packaging the light-emitting units, and the orthographic projection of the packaging part corresponding to at least one light-emitting unit on the substrate is at least partially overlapped with the orthographic projection of the packaging part corresponding to at least one adjacent light-emitting unit on the substrate; wherein a first groove is formed in the side, away from the substrate, of the isolation structure, at least part of the packaging part extends into the first groove, and the packaging effect of the packaging part can be achieved. In the preparation process of the display panel, the first groove can reduce the flow rate of etching liquid on the isolation structure and reduce the impact force of the etching liquid on the packaging part, so that the occurrence of packaging failure is reduced, and the process performance of the display panel is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display devices, in particular 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 display products needs to be improved. SUMMARY

[0004] Embodiments of the present application provide a display panel and a display device, aiming to improve the process performance 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, a light emitting layer and a first encapsulation layer; the isolation structure is arranged on one side of the substrate, and the isolation structure encloses to form a plurality of isolation openings; the light emitting layer comprises a light emitting unit located at least partially in the isolation opening; the first encapsulation layer comprises a plurality of encapsulation portions for encapsulating each light emitting unit, and the projection of the encapsulation portion corresponding to at least one light emitting unit on the substrate at least partially overlaps with the projection of the encapsulation portion corresponding to at least one light emitting unit adjacent to it on the substrate; wherein the isolation structure is provided with a first groove on the side away from the substrate, and part of the encapsulation portion extends into the first groove from the isolation opening.

[0006] According to an embodiment of the present application, at least part of the encapsulation portion has an overlapping section located on the side of the isolation structure away from the substrate, the overlapping sections of the two adjacent encapsulation portions overlap in the projection on the substrate, and at least one of the two overlapping sections overlaps each other and is located in the first groove.

[0007] According to an embodiment of the present application, the light emitting unit comprises a first light emitting unit and a second light emitting unit arranged adjacent to each other, the encapsulation portion comprises a first encapsulation portion for encapsulating the first light emitting unit and a second encapsulation portion for encapsulating the second light emitting unit, the first encapsulation portion comprises a first overlapping section, the second encapsulation portion comprises a second overlapping section, and the second overlapping section is located on the side of the first overlapping section away from the substrate.

[0008] According to an embodiment of the present application, at least part of the first overlapping section is located in the first groove.

[0009] According to an embodiment of the present application, at least part of the second overlapping section is located in the first groove.

[0010] According to an embodiment of the present application, the light emitting colors of the first light emitting unit and the second light emitting unit are different.

[0011] According to an embodiment of the present application, the first encapsulation part includes a first segment and a second segment connected to each other, the first segment is located on a side of the first light emitting unit away from the substrate and covers the side wall of the isolation structure facing the isolation opening, and the second segment is located on a side of the isolation structure away from the substrate and at least partially extends into the first groove; the second encapsulation part includes a third segment and a fourth segment connected to each other, the third segment is located on a side of the second light emitting unit away from the substrate and covers the side wall of the isolation structure facing the isolation opening, and the fourth segment is located on a side of the isolation structure away from the substrate and at least partially extends to a side of the second segment away from the substrate; wherein the first overlapping segment is arranged on the second segment, the second overlapping segment is arranged on the fourth segment, and the first overlapping segment is located in the first groove.

[0012] According to an embodiment of the present application, the first overlapping segment and the second overlapping segment are arranged in a direction of thickness of the display panel.

[0013] According to an embodiment of the present application, the second overlapping segment is located on a side of the first overlapping segment away from the substrate and protrudes from a side of the first groove away from the substrate, the fourth segment includes a first transition segment connected between the second overlapping segment and the third segment, a minimum distance between the side of the second overlapping segment away from the substrate and the substrate is a first distance, and a minimum distance between the side of the first transition segment away from the substrate and the substrate is a second distance, and the first distance is less than or equal to the second distance.

[0014] According to an embodiment of the present application, the second overlapping segment and the first overlapping segment are both located in the first groove, the fourth segment includes a first transition segment connected between the second overlapping segment and the third segment, a minimum distance between the side of the second overlapping segment away from the substrate and the substrate is a third distance, and a minimum distance between the side of the first transition segment away from the substrate and the substrate is a second distance, and the third distance is less than the second distance.

[0015] According to an embodiment of the present application, the first groove is in a grid shape and surrounds each isolation opening.

[0016] According to an embodiment of the present application, the first groove has a first extension direction, and a cross section of the first groove in a direction of thickness of the display panel and perpendicular to the first extension direction is rectangular, trapezoidal or polygonal.

[0017] According to an embodiment of the present application, the display panel further includes a pixel definition layer, the pixel definition layer is arranged on a side of the isolation structure facing the substrate, the pixel definition layer includes a pixel defining part and a pixel opening enclosed by the pixel defining part, the pixel opening is in communication with the isolation opening, and a normal projection of the isolation structure on the substrate is located in the pixel defining part.

[0018] According to an embodiment of the present application, the pixel defining portion is provided with a first through groove, and the partial isolation structure is filled in the first through groove. The first groove and the first through groove at least partially overlap in the orthographic projection on the substrate.

[0019] According to an embodiment of the present application, the first through groove is arranged around the pixel opening.

[0020] According to an embodiment of the present application, the display panel further comprises a pixel definition layer and an insulating layer. The insulating layer, the pixel definition layer and the isolation structure are sequentially stacked in the direction away from the substrate. The pixel definition layer comprises a pixel defining portion and a pixel opening formed by the pixel defining portion. The pixel opening is in communication with the isolation opening. The orthographic projection of the isolation structure on the substrate is located in the pixel defining portion.

[0021] According to an embodiment of the present application, the insulating layer is provided with a recess. Part of the pixel defining portion is filled in the recess to form a second groove on the side of the pixel defining portion away from the substrate. Part of the isolation structure is filled in the second groove to form a first groove. The orthographic projection of the first groove on the substrate at least partially overlaps with the orthographic projection of the second groove on the substrate. The orthographic projection of the recess on the substrate at least partially overlaps with the orthographic projection of the second groove on the substrate.

[0022] According to an embodiment of the present application, the orthographic projection of the recess on the substrate surrounds the orthographic projection of the light emitting unit on the substrate.

[0023] According to an embodiment of the present application, the second groove is arranged around the pixel opening.

[0024] According to an embodiment of the present application, the recess is a groove structure.

[0025] According to an embodiment of the present application, the recess is a through groove structure. The recess penetrates the insulating layer in the thickness direction of the display panel.

[0026] According to an embodiment of the present application, the display panel further comprises a second encapsulation layer. The second encapsulation layer is arranged on the side of the first encapsulation layer away from the substrate.

[0027] According to an embodiment of the present application, the isolation structure comprises a first sub-layer and a second sub-layer. The first sub-layer has a third groove on the side away from the substrate. The third groove is arranged on at least part of the side of the isolation opening. The second sub-layer is located on the side of the first sub-layer away from the substrate. Part of the second sub-layer is located in the third groove. The side of the second sub-layer away from the third groove constitutes the first groove.

[0028] According to an embodiment of the present application, the orthographic projection of the first sub-layer on the substrate is located within the orthographic projection of the second sub-layer on the substrate.

[0029] According to an embodiment of the present application, the isolation structure further comprises a third sub-layer. The third sub-layer is arranged on the side of the first sub-layer toward the substrate.

[0030] According to an embodiment of the present application, the third sub-layer has a fourth groove, and a projection of the fourth groove on the substrate at least partially overlaps a projection of the third groove on the substrate.

[0031] According to an embodiment of the present application, a projection of the first sub-layer on the substrate is located within a projection of the third sub-layer on the substrate.

[0032] The first aspect of the present application also provides a display panel, comprising: a substrate; an isolation structure arranged on one side of the substrate, the isolation structure enclosing a plurality of isolation openings; a light-emitting layer comprising a light-emitting unit located at least partially in the isolation opening, the light-emitting unit comprising a first light-emitting unit and a second light-emitting unit arranged adjacently; a first encapsulation layer comprising a first encapsulation part for encapsulating the first light-emitting unit and a second encapsulation part for encapsulating the second light-emitting unit, the first encapsulation part comprising a first overlapping section located on a side of the isolation structure facing away from the substrate, the second encapsulation part comprising a second overlapping section located on a side of the isolation structure facing away from the substrate, a projection of the first overlapping section on the substrate and a projection of the second overlapping section on the substrate overlap; wherein a first groove is arranged on the side of the isolation structure facing away from the substrate, and a projection of the first overlapping section and the second overlapping section on the substrate at least partially overlaps a projection of the first groove on the substrate.

[0033] According to an embodiment of the present application, a projection of the first overlapping section and the second overlapping section on the substrate is located within a projection of the first groove on the substrate.

[0034] According to an embodiment of the present application, at least one of the first overlapping section and the second overlapping section is located within the first groove.

[0035] According to an embodiment of the present application, the first encapsulation part comprises a first segment, a second transition section and a first overlapping section connected in sequence, the first segment is located on a side of the first light-emitting unit facing away from the substrate and covers a side wall of the isolation structure facing the isolation opening, and the second transition section and the first overlapping section are located on a side of the isolation structure facing away from the substrate; the second encapsulation part comprises a third segment, a first transition section and a second overlapping section connected in sequence, the third segment is located on a side of the second light-emitting unit facing away from the substrate and covers a side wall of the isolation structure facing the isolation opening, and the first transition section and the second overlapping section are located on a side of the isolation structure facing away from the substrate; wherein the second overlapping section is located on a side of the first overlapping section facing away from the substrate, the first overlapping section is located within the first groove, and a minimum distance between a side of the second overlapping section facing away from the substrate and the substrate is a first distance, a minimum distance between a side of the first transition section facing away from the substrate and the substrate is a second distance, and the first distance is less than or equal to the second distance.

[0036] According to an embodiment of the present application, the second overlap section and the first overlap section are both located in the first groove, a minimum distance between a side of the second overlap section facing away from the substrate and the substrate is a third distance, a minimum distance between a side of the first transition section facing away from the substrate and the substrate is a second distance, and the third distance is less than the second distance.

[0037] According to an embodiment of the present application, the display panel further comprises a pixel definition layer, the pixel definition layer is arranged on a side of the isolation structure facing the substrate, the pixel definition layer comprises a pixel limiting portion and a pixel opening formed by the pixel limiting portion, the pixel opening is in communication with the isolation opening, and a projection of the isolation structure on the substrate is located in the pixel limiting portion.

[0038] According to an embodiment of the present application, the pixel limiting portion is provided with a first through slot, and part of the isolation structure is filled in the first through slot; and a projection of the first groove and the first through slot on the substrate at least partially overlaps.

[0039] According to an embodiment of the present application, the first through slot is arranged around the pixel opening.

[0040] According to an embodiment of the present application, the display panel further comprises a pixel definition layer and an insulating layer, the insulating layer, the pixel definition layer and the isolation structure are sequentially stacked in a direction facing away from the substrate, the pixel definition layer comprises a pixel limiting portion and a pixel opening formed by the pixel limiting portion, the pixel opening is in communication with the isolation opening, and a projection of the isolation structure on the substrate is located in the pixel limiting portion.

[0041] According to an embodiment of the present application, the insulating layer is provided with a recess, part of the pixel limiting portion is filled in the recess to form a second groove on a side of the pixel limiting portion facing away from the substrate, part of the isolation structure is filled in the second groove to form the first groove, a projection of the first groove on the substrate at least partially overlaps with a projection of the second groove on the substrate, and a projection of the recess on the substrate at least partially overlaps with the projection of the second groove on the substrate.

[0042] According to an embodiment of the present application, a projection of the recess on the substrate surrounds a projection of the light emitting unit on the substrate.

[0043] According to an embodiment of the present application, the second groove is arranged around the pixel opening.

[0044] Embodiments of the second aspect of the present application also provide a display device comprising the display panel of any of the embodiments of the first aspect.

[0045] In the embodiments of this application, the orthographic projection of the encapsulation portion corresponding to at least one light-emitting unit on the substrate and the orthographic projection of the encapsulation portion corresponding to at least one adjacent light-emitting unit on the substrate at least partially overlap, resulting in a larger distribution area of ​​the encapsulation portions. The partial overlap of adjacent encapsulation portions expands the distribution area of ​​the encapsulation portions and improves the encapsulation effect. Furthermore, at least one encapsulation portion is covered by at least one adjacent encapsulation portion, making the relative position between the covered encapsulation portion and the isolation structure more stable. This reduces the risk of damage to the covered encapsulation portion, preventing encapsulation failure and further improving the yield of the display panel. At least a portion of the encapsulation portion extends into the first groove, enhancing the encapsulation effect. During the manufacturing process of the display panel, the first groove reduces the flow rate of the etching solution on the isolation structure and reduces the impact force of the etching solution on the encapsulation portion, thereby further reducing the occurrence of encapsulation failure and improving the process performance of the display panel. Attached Figure Description

[0046] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0047] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0048] Figure 2 yes Figure 1 Cross-sectional view at point AA;

[0049] Figure 3 This is a schematic diagram of another display panel structure provided in an embodiment of this application;

[0050] Figure 4 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0051] Figure 5 This is a schematic diagram of the structure of another display panel provided in the embodiments of this application;

[0052] Figure 6 This is a schematic diagram of the structure of another display panel provided in the embodiments of this application;

[0053] Figure 7 This is a schematic diagram of the structure of another display panel provided in the embodiments of this application.

[0054] Label explanation: 100, substrate; 200, isolation structure; 201, first sub-layer; 202, second sub-layer; 203, third sub-layer; 204, third groove; 205, fourth groove; 210, isolation opening; 220, first groove; 300, light emitting unit; 310, first light emitting unit; 320, second light emitting unit; 400, packaging part; 410, overlapping segment; 420, first packaging part; 421, first segment; 422, second segment; 423, first overlapping segment; 430, second packaging part; 431, third segment; 432, fourth segment; 433, second overlapping segment; 434, first transition segment; 500, pixel defining part; 510, pixel opening; 520, first through groove; 530, second groove; 600, insulating layer; 610, recess; 620, via hole; 700, second packaging layer; 810, first electrode; 820, second electrode; Z, thickness direction. DETAILED DESCRIPTION

[0055] Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely illustrative of the present application and is not intended to limit the present application, as is apparent to one of ordinary skill in the art. In the following description, well-known structures and techniques have not been shown in detail in order not to obscure the present application.

[0056] In the description of the present application, it should be noted that, unless otherwise specified, the meaning of "a plurality of" is more than two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is merely for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0057] The positional words appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the embodiments of the present application. It should be noted in the description of the present application that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be directly connected, or indirectly connected. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] As shown in Figures 1 to 5 The first aspect of the present application provides a display panel, which comprises a substrate 100, an isolation structure 200, a light-emitting layer and a first encapsulation layer; the isolation structure 200 is arranged on one side of the substrate 100, and the isolation structure 200 is surrounded to form a plurality of isolation openings 210; the light-emitting layer comprises a light-emitting unit 300 located at least partially in the isolation opening 210; the first encapsulation layer comprises a plurality of encapsulation parts 400 for encapsulating each light-emitting unit 300, and the orthographic projection of the encapsulation part 400 corresponding to at least one light-emitting unit 300 on the substrate 100 and the orthographic projection of the encapsulation part 400 corresponding to at least one light-emitting unit 300 adjacent to it on the substrate 100 at least partially overlap; wherein the isolation structure 200 is provided with a first groove 220 on the side away from the substrate 100, and part of the encapsulation part 400 extends into the first groove 220 from the isolation opening 210.

[0059] In the embodiment, the isolation structure 200 is arranged on the substrate 100 and encloses a plurality of isolation openings 210 to isolate the light-emitting layer to form mutually disconnected light-emitting units 300. The light-emitting units 300 are located in the respective isolation openings 210. The isolation structure 200 can reduce light crosstalk between different light-emitting units 300, thereby improving display effect. The light-emitting units 300 are prepared without using a precision mask plate, which can reduce the development and use of the precision mask plate and reduce the preparation cost. The first encapsulation layer includes a plurality of encapsulation portions 400 for encapsulating the light-emitting units 300. The encapsulation portions 400 can reduce the entry of water, oxygen and the like into the light-emitting units 300 to cause damage to the light-emitting units 300, thereby improving the reliability of the light-emitting units 300. The orthographic projection of the encapsulation portion 400 corresponding to at least one light-emitting unit 300 on the substrate 100 and the orthographic projection of the encapsulation portion 400 corresponding to at least one light-emitting unit 300 adjacent thereto on the substrate 100 at least partially overlap, so that the distribution area of the encapsulation portion 400 is relatively large, and the encapsulation portions 400 adjacent to each other overlap, which can expand the distribution area of the encapsulation portion 400 and improve the encapsulation effect. Moreover, at least one encapsulation portion 400 is covered by at least one encapsulation portion 400 adjacent thereto, and the relative position between the covered encapsulation portion 400 and the isolation structure 200 is more stable, and the covered encapsulation portion 400 is less likely to be damaged, which can avoid encapsulation failure and further improve the yield of the display panel. Part of the encapsulation portion 400 extends into the first groove 220, which can improve the encapsulation effect of the encapsulation portion 400. During the preparation of the display panel, the first groove 220 can reduce the flow rate of etching liquid on the isolation structure 200 and reduce the impact force of the etching liquid on the encapsulation portion 400, thereby further reducing the occurrence of encapsulation failure and improving the process performance of the display panel.

[0060] As shown in FIG. 1, Figures 1 to 5 In some optional embodiments, at least part of the encapsulation portion 400 has an overlapping section 410 located on the side of the isolation structure 200 away from the substrate 100. The orthographic projection of the overlapping sections 410 of two adjacent encapsulation portions 400 on the substrate 100 overlaps. At least one of the two overlapping overlapping sections 410 is located in the first groove 220.

[0061] In the alternative embodiments, the two overlapping segments 410 that overlap each other have a certain thickness, and at least one of the two overlapping segments 410 that overlap each other is located in the first groove 220, that is, among the two overlapping segments 410 that overlap each other, the overlapping segment 410 that is relatively close to the side of the substrate 100 is located in the groove, so as to reduce the height of the overlapping segment 410 that is relatively far from the substrate 100 protruding from the side of the isolation structure 200 away from the substrate 100, so that the side of the packaging portion 400 away from the substrate 100 is more planarized, and when other film layers are formed on the overlapping segment 410, the forming difficulty of the other film layers can be reduced. Alternatively, when the side of the packaging portion 400 away from the substrate 100 forms a second packaging layer 700 including an organic material, the material of the second packaging layer 700 is planarized on the side of the first packaging portion 420 away from the substrate 100 by self-leveling, and the side of the packaging portion 400 away from the substrate 100 is more planarized, so as to improve the flowability of the second packaging layer 700 and improve the film forming effect of the second packaging layer 700.

[0062] As shown in Figure 2 In some alternative embodiments, the display panel further includes a second electrode layer, the second electrode layer includes a second electrode 820 located in the isolation opening 210, and the second electrode 820 is located between the light emitting unit 300 and the packaging portion 400 and is electrically connected with the isolation structure 200.

[0063] In these alternative embodiments, the isolation structure 200 separates the second electrode layer to form mutually spaced second electrodes 820, and the mutually spaced second electrodes 820 are electrically connected through the isolation structure 200 to form a full-area electrode, thereby ensuring normal light emission of the light emitting unit 300.

[0064] As shown in Figures 2 to 5 In some alternative embodiments, the light emitting unit 300 includes a first light emitting unit 310 and a second light emitting unit 320 arranged adjacent to each other, the packaging portion 400 includes a first packaging portion 420 for packaging the first light emitting unit 310 and a second packaging portion 430 for packaging the second light emitting unit 320, the first packaging portion 420 includes a first overlapping segment 423, and the second packaging portion 430 includes a second overlapping segment 433, and the second overlapping segment 433 is located on the side of the first overlapping segment 423 away from the substrate 100.

[0065] In these alternative embodiments, at least part of the second packaging portion 430 extends to the side of the first packaging portion 420 away from the substrate 100, which on the one hand can expand the distribution area of the second packaging portion 430 and improve the packaging effect of the second packaging portion 430, and on the other hand, part of the first packaging portion 420 is covered by the second packaging portion 430, which can improve the stability of the relative position of the first packaging portion 420 and the isolation structure 200 and improve the problem of failure of the first packaging portion 420.

[0066] Alternatively, asFigures 2 to 5 As shown, at least part of the first overlapping section 423 is located in the first recess 220, so that the first encapsulation portion 420 forms a concave relative to the isolation structure 200, thereby reducing the height of the second overlapping section 433 of the second encapsulation portion 430 on the side of the second encapsulation portion 430 away from the substrate 100 protruding from the side of the isolation structure 200 away from the substrate 100, and improving the film forming effect of the second encapsulation layer 700 comprising an organic material.

[0067] Optionally, as shown in Figure 4 and Figure 5 As shown, the second overlapping section 433 is located in the first recess 220, thereby improving the encapsulation effect of the second encapsulation portion 430, and improving the stability of the relative position of the second encapsulation portion 430 and the isolation structure 200, and improving the failure problem of the second encapsulation portion 430.

[0068] Optionally, the light emitting colors of the first light emitting unit 310 and the second light emitting unit 320 are different.

[0069] As shown in Figure 2 and Figure 3 In some optional embodiments, the first encapsulation portion 420 comprises a first segment 421 and a second segment 422 connected to each other, the first segment 421 is located on the side of the first light emitting unit 310 away from the substrate 100 and covers the side wall of the isolation structure 200 facing the isolation opening 210, and the second segment 422 is located on the side of the isolation structure 200 away from the substrate 100 and at least partially extends into the first recess 220; the second encapsulation portion 430 comprises a third segment 431 and a fourth segment 432 connected to each other, the third segment 431 is located on the side of the second light emitting unit 320 away from the substrate 100 and covers the side wall of the isolation structure 200 facing the isolation opening 210, and the fourth segment 432 is located on the side of the isolation structure 200 away from the substrate 100 and at least partially extends to the side of the second segment 422 away from the substrate 100; wherein the first overlapping section 423 is arranged on the second segment 422, and the second overlapping section 433 is arranged on the fourth segment 432, and the first overlapping section 423 is located in the first recess 220.

[0070] In these optional embodiments, the first encapsulation portion 420 includes a first segment 421 and a second segment 422, the second segment 422 covers part of the isolation structure 200 to expand the distribution area of the first encapsulation portion 420, and the second segment 422 extends at least partially into the first groove 220 to improve the stability of the relative position of the first encapsulation portion 420 and the isolation structure 200. The second encapsulation portion 430 includes a third segment 431 and a fourth segment 432, and the fourth segment 432 covers the isolation structure 200 to expand the distribution area of the second encapsulation portion 430. The second segment 422 and the fourth segment 432 are both located above the isolation structure 200, and the second segment 422 and the fourth segment 432 are at least partially overlapped on the isolation structure 200, so that the fourth segment 432 can cover part of the second segment 422, and the problem of damage to the second segment 422 and resulting encapsulation failure can be improved.

[0071] Optionally, as shown in Figure 3 The first overlap segment 423 and the second overlap segment 433 are spaced apart along the thickness direction Z of the display panel. In the process of preparing the second encapsulation portion 430, the second encapsulation material layer will cover the second light-emitting material layer, and part of the second light-emitting material layer will be subsequently etched and removed to form a gap between the first overlap segment 423 and the second overlap segment 433.

[0072] As shown in Figure 2 and Figure 3 In some optional embodiments, the second overlap segment 433 is located on the side of the first overlap segment 423 away from the substrate 100 and protrudes from the side of the first groove 220 away from the substrate 100, the fourth segment 432 includes a first transition segment 434 connected between the second overlap segment 433 and the third segment 431, the minimum distance between the side of the second overlap segment 433 away from the substrate 100 and the substrate 100 is a first distance N, the minimum distance between the side of the first transition segment 434 away from the substrate 100 and the substrate 100 is a second distance n, and the first distance N is less than or equal to the second distance n.

[0073] In these optional embodiments, the second overlapping segment 433 protrudes from the side of the first groove 220 away from the substrate 100, and the second overlapping segment 433 is not completely located within the first groove 220. The fourth segment 432 includes a first transition segment 434 connecting the second overlapping segment 433 and the third segment 431. Both the first transition segment 434 and the second overlapping segment 433 are located on the side of the isolation structure 200 away from the substrate 100. In some embodiments, when the first groove 220 is not provided, the stacked arrangement of the first overlapping segment 423 and the second overlapping segment 433 increases the distance between the second overlapping segment 433 and the substrate 100. In this embodiment, the first overlapping segment 423 is located within the first groove 220 to reduce the distance between the second overlapping segment 433 and the substrate 100. The minimum distance between the side of the second overlapping segment 433 facing away from the substrate 100 and the substrate 100 is the first distance N. The minimum distance between the side of the first transition segment 434 facing away from the substrate 100 and the substrate 100 is the second distance n. The first distance N is less than or equal to the second distance n. Figure 3 As shown, when the first transition segment 434 and the second overlapping segment 433 are located on the same plane, the first distance N is equal to the second distance n. When the second overlapping segment 433 is concave relative to the first transition segment 434, the first distance N is less than the second distance n.

[0074] like Figure 4 and Figure 5 As shown, in some alternative embodiments, the second overlapping segment 433 and the first overlapping segment 423 are both located within the first groove 220. The minimum distance between the side of the second overlapping segment 433 away from the substrate 100 and the substrate 100 is the third distance B. The minimum distance between the side of the first transition segment 434 away from the substrate 100 and the substrate 100 is the second distance n. The third distance is less than the second distance n.

[0075] In these optional embodiments, the second overlapping segment 433 and the first overlapping segment 423 are both located within the first groove 220, the first transition segment 434 is located outside the first groove 220, and the second overlapping segment 433 is recessed relative to the first transition segment 434, so that the third distance B is smaller than the second distance n, thereby further improving the encapsulation effect of the first encapsulation portion 420 and the second encapsulation portion 430.

[0076] like Figure 1 As shown, in some alternative embodiments, the first groove 220 is mesh-shaped and is disposed around each isolation opening 210.

[0077] In these alternative embodiments, the encapsulation portion 400 within each isolation opening 210 extends at least partially into the first groove 220, thereby improving the encapsulation effect of each encapsulation portion 400.

[0078] Optional, such as Figure 1 and Figure 2As shown, the first groove 220 has a first extension direction, and a cross section of the first groove 220 along the display panel thickness direction Z and perpendicular to the first extension direction is rectangular, trapezoidal or polygonal. When the cross section of the first groove 220 is rectangular or trapezoidal, the manufacturing process of the first groove 220 can be simplified. When the cross section of the first groove 220 is polygonal, the etching liquid flow rate can be slowed down, the effect of the etching liquid forming turbulent flow can be reduced, the etching liquid flow stability can be improved, and the impact effect of the etching liquid can be reduced.

[0079] As shown, in some optional embodiments, the display panel further includes a pixel definition layer, the pixel definition layer is arranged on a side of the isolation structure 200 facing the substrate 100, the pixel definition layer includes a pixel limiting portion 500 and a pixel opening 510 enclosed by the pixel limiting portion 500, the pixel opening 510 is in communication with the isolation opening 210, and a normal projection of the isolation structure 200 on the substrate 100 is located in the pixel limiting portion 500. Figures 2 to 5

[0080] In these optional embodiments, the pixel limiting portion 500 of the pixel definition layer encloses the pixel opening 510 to arrange the light emitting unit 300, so as to realize normal light emission of the light emitting unit 300. In addition, the pixel limiting portion 500 defines the arrangement area of each light emitting unit 300, so as to reduce the cross color defect between each light emitting unit 300.

[0081] Optionally, as shown, Figures 2 to 5 The display panel further includes a first electrode 810 located on a side of the light emitting unit 300 facing the substrate 100, a second electrode 820 located on a side of the light emitting unit 300 away from the substrate 100, and the first electrode 810 is exposed by the pixel opening 510. One of the first electrode 810 and the second electrode 820 serves as an anode of the light emitting unit 300, and the other serves as a cathode of the light emitting unit 300.

[0082] Optionally, as shown, Figures 2 to 5 ​As shown, the pixel defining portion 500 is provided with a first through groove 520, and the partial isolation structure 200 is filled in the first through groove 520, and the orthographic projection of the first groove 220 and the first through groove 520 on the substrate 100 at least partially overlaps. The first through groove 520 is opened in the preparation process of the pixel defining portion 500, and when the isolation structure 200 is prepared on the pixel defining portion 500, the material of the isolation structure 200 is filled in the first through groove 520 to form the first groove 220 away from the substrate 100 side of the isolation structure 200, so as to be able to increase the bonding force between the isolation structure 200 and the pixel defining portion 500, and reduce the risk of film layer peeling. Moreover, the first through groove 520 and the pixel opening 510 can be prepared and formed in the same patterning process, and the material of the isolation structure 200 falls into the first through groove 520 to form the first groove 220, thereby replacing the preparation process of the first groove 220. Wherein, the first through groove 520 penetrates the pixel defining portion 500 along the thickness direction Z of the display panel.

[0083] Optionally, the first through groove 520 is arranged around the pixel opening 510 to form the first groove 220 surrounding the isolation opening 210.

[0084] As shown in FIG. 1A, Figure 6 and Figure 7 In some other optional embodiments, the display panel further comprises an insulating layer 600, and the insulating layer 600, the pixel defining layer and the isolation structure 200 are sequentially stacked in the direction away from the substrate 100.

[0085] In these optional embodiments, the substrate 100 comprises a driving circuit layer, and the insulating layer 600 can reduce the probability of contact short circuit between the light emitting unit 300 and the driving circuit layer.

[0086] Optionally, as shown in FIG. 1A, Figure 6 and Figure 7As shown, the insulating layer 600 is provided with a recess 610, and the partial pixel defining part 500 is filled in the recess 610 to form the second groove 530 on the side of the pixel defining part 500 away from the substrate 100, and the partial isolation structure 200 is filled in the second groove 530 to form the first groove 220, thereby replacing the preparation process of the first groove 220. The orthographic projection of the first groove 220 on the substrate 100 at least partially overlaps the orthographic projection of the second groove 530 on the substrate 100, and the orthographic projection of the recess 610 on the substrate 100 at least partially overlaps the orthographic projection of the second groove 530 on the substrate 100. The recess 610 is opened in the insulating layer 600, the pixel defining part 500 is formed on the side of the insulating layer 600 away from the substrate 100, and the material of the partial pixel defining part 500 fills the recess 610 to form the second groove 530 on the side of the pixel defining part 500 away from the substrate 100, thereby increasing the bonding force between the pixel defining part 500 and the insulating layer 600 and reducing the risk of film layer peeling. When the isolation structure 200 is prepared on the pixel defining part 500, the material of the isolation structure 200 is filled in the second groove 530 to form the first groove 220 on the side of the isolation structure 200 away from the substrate 100, thereby increasing the bonding force between the isolation structure 200 and the pixel defining part 500 and reducing the risk of film layer peeling.

[0087] Optionally, as shown in Figure 6 and Figure 7 , the orthographic projection of the recess 610 on the substrate 100 surrounds the orthographic projection of the light emitting unit 300 on the substrate 100, thereby forming the second groove 530 arranged around the pixel opening 510, and further forming the first groove 220 arranged around the isolation opening 210.

[0088] Optionally, as shown in Figure 7 , the recess 610 is a groove structure, and the partial pixel defining part 500 is filled in the groove structure to form the second groove 530.

[0089] Optionally, as shown in Figure 6 , the recess 610 is a through groove structure, and the recess 610 penetrates the insulating layer 600 along the thickness direction Z of the display panel, thereby increasing the depth of the second through groove, and further increasing the depth of the first groove 220.

[0090] As shown in Figure 6 and Figure 7 , in some optional embodiments, the substrate 100 includes a drive circuit layer, the first electrode 810 is located on the side of the insulating layer 600 away from the drive circuit layer, the first electrode 810 is electrically connected to the drive circuit layer through the via hole 620, and the recess 610 can be formed in the same preparation process as the via hole 620, thereby simplifying the preparation process of the display panel.

[0091] As shown in Figure 2As shown, in some optional embodiments, the display panel further includes a second encapsulation layer 700, which is disposed on the side of the first encapsulation layer away from the substrate 100.

[0092] In these alternative embodiments, the second encapsulation layer 700 includes an organic material and is used to planarize the side of the first encapsulation layer away from the substrate 100. The first overlapping segment 423 is located within the first groove 220 to reduce the height of the second overlapping segment 433 protruding from the isolation structure 200, thereby improving the material flowability of the second encapsulation layer 700 and thus improving the planarization effect of the second encapsulation layer 700.

[0093] like Figure 2 As shown, in some optional embodiments, the isolation structure 200 includes a first sub-layer 201 and a second sub-layer 202. The first sub-layer 201 has a third groove 204 on the side facing away from the substrate 100. The third groove 204 is disposed around at least a portion of the isolation opening 210. The second sub-layer 202 is located on the side of the first sub-layer 201 facing away from the substrate 100. A portion of the second sub-layer 202 is located in the third groove 204. The side of the second sub-layer 202 facing away from the third groove 204 forms a first groove 220.

[0094] In these alternative embodiments, a third groove 204 is provided on the side of the first sublayer 201 facing away from the substrate 100, and a second sublayer 202 is provided on the side of the first sublayer 201 facing away from the substrate 100. When fabricating the second sublayer 202, the material of the second sublayer 202 falls on the side of the first sublayer 201 facing away from the substrate 100 and forms a recess in the third groove 204, thereby constituting the first groove 220.

[0095] Optional, such as Figure 2 As shown, the orthographic projection of the first sublayer 201 on the substrate 100 lies within the orthographic projection of the second sublayer 202 on the substrate 100. The first sublayer 201 and the second sublayer 202 form an isolation structure 200. The orthographic projection of the first sublayer 201, which is positioned close to the substrate 100, lies within the orthographic projection of the second sublayer 202 on the substrate 100. The area of ​​the second sublayer 202 is larger than the area of ​​the first sublayer 201. The second sublayer 202 covers the surface of the first sublayer 201 closest to itself. At this time, the first sublayer 201 is recessed relative to the second sublayer 202 in a direction away from the isolation opening 210. When the light-emitting layer is fabricated, a large drop occurs at the edge of the isolation structure 200, and the first sublayer 201 is recessed relative to the second sublayer 202. The light-emitting layer is difficult to connect at the edge of the isolation structure 200, resulting in breakage. The broken light-emitting layer forms mutually disconnected light-emitting units 300.

[0096] like Figure 2As shown, in some optional embodiments, the isolation structure 200 further includes a third sub-layer 203, which is arranged on the side of the first sub-layer 201 facing the substrate 100. The third sub-layer 203 can provide protection to the film layer on the side of the substrate 100 when side etching the first sub-layer 201.

[0097] Optionally, as shown, Figure 2 As shown, the third sub-layer 203 has a fourth groove 205, and part of the material of the first sub-layer 201 falls into the fourth groove 205 to form a third groove 204. The orthographic projection of the fourth groove 205 on the substrate 100 at least partially overlaps the orthographic projection of the third groove 204 on the substrate 100.

[0098] Optionally, as shown, Figure 2 Figure 2 As shown, the orthographic projection of the first sub-layer 201 on the substrate 100 is located within the orthographic projection of the third sub-layer 203 on the substrate 100, thereby improving the protection effect of the third sub-layer 203 on the film layer on the side of the substrate 100.

[0099] The specific design of the isolation structure 200 can refer to existing patents. For example, the application numbers 202310771124.9, 202310740412.8, 202310771071.0, 202311017132.0, PCT / CN2023 / 134518, and 202311091555.7 describe the related content of the isolation structure 200.

[0100] The first aspect of the embodiments of the present application further provides a display panel, which includes: a substrate 100; an isolation structure 200 arranged on one side of the substrate 100, the isolation structure 200 enclosing a plurality of isolation openings 210; a light-emitting layer including a light-emitting unit 300 located at least partially in the isolation opening 210, the light-emitting unit 300 including a first light-emitting unit 310 and a second light-emitting unit 320 arranged adjacently; a first encapsulation layer including a first encapsulation part 420 for encapsulating the first light-emitting unit 310 and a second encapsulation part 430 for encapsulating the second light-emitting unit 320, the first encapsulation part 420 including a first overlapping section 423 located on the side of the isolation structure 200 facing away from the substrate 100, the second encapsulation part 430 including a second overlapping section 433 located on the side of the isolation structure 200 facing away from the substrate 100, and the orthographic projection of the first overlapping section 423 on the substrate 100 and the orthographic projection of the second overlapping section 433 on the substrate 100 overlap; wherein the side of the isolation structure 200 facing away from the substrate 100 is provided with a first groove 220, and the orthographic projection of the first overlapping section 423 and the second overlapping section 433 on the substrate 100 at least partially overlaps the orthographic projection of the first groove 220 on the substrate 100.

[0101] In the embodiment, the orthographic projection of the first and second overlapping sections 423 and 433 on the substrate 100 at least partially overlaps with the orthographic projection of the first groove 220 on the substrate 100, so that the first and second overlapping sections 423 and 433 are at least partially located in the first groove 220, to reduce the distance between the side of the first and second overlapping sections 423 and 433 away from the substrate 100 and the substrate 100, thereby reducing the influence of the first and second overlapping sections 423 and 433 on the flowability of other film layers, and improving the process performance of the display panel.

[0102] In some optional embodiments, the encapsulation portion 400, the pixel definition layer, and the insulating layer 600 are arranged in the manner as described above, which will not be repeated here.

[0103] Embodiments of the second aspect of the present application also provide a display device including the display panel of any of the embodiments of the first aspect. Since the display device provided by the embodiments of the second aspect of the present application includes the display panel of any of the embodiments of the first aspect, the display device provided by the embodiments of the second aspect of the present application has the beneficial effects of the display panel of any of the embodiments of the first aspect, which will not be repeated here.

[0104] 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 e-book, a television, an access control, a smart fixed phone, a console, and other devices with display functions.

[0105] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application, and equivalent substitutions can be made to the components thereof. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that, include: substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure encloses and forms a plurality of isolation openings; The light-emitting layer includes light-emitting units located at least partially within the isolation opening; The first encapsulation layer includes a plurality of encapsulation portions for encapsulating each of the light-emitting units, wherein the orthographic projection of the encapsulation portion corresponding to at least one of the light-emitting units on the substrate and the orthographic projection of the encapsulation portion corresponding to at least one adjacent light-emitting unit on the substrate at least partially overlap. The isolation structure has a first groove on the side facing away from the substrate, and part of the encapsulation portion extends from the isolation opening into the first groove.

2. The display panel according to claim 1, characterized in that, At least a portion of the package portion has an overlapping section located on the side of the isolation structure opposite to the substrate, the overlapping sections of two adjacent package portions overlap in their orthographic projection on the substrate, and at least one of the two overlapping sections is located within the first groove.

3. The display panel according to claim 2, characterized in that, The light-emitting unit includes a first light-emitting unit and a second light-emitting unit arranged adjacent to each other. The encapsulation part includes a first encapsulation part for encapsulating the first light-emitting unit and a second encapsulation part for encapsulating the second light-emitting unit. The first encapsulation part includes a first overlapping section, and the second encapsulation part includes a second overlapping section. The second overlapping section is located on the side of the first overlapping section away from the substrate. Preferably, at least a portion of the first overlapping segment is located within the first groove, and / or at least a portion of the second overlapping segment is located within the first groove; Preferably, the first light-emitting unit and the second light-emitting unit emit different colors.

4. The display panel according to claim 3, characterized in that, The first encapsulation portion includes a first segment and a second segment connected to each other. The first segment is located on the side of the first light-emitting unit away from the substrate and covers the sidewall of the isolation structure facing the isolation opening. The second segment is located on the side of the isolation structure away from the substrate and extends at least partially into the first groove. The second encapsulation portion includes a third segment and a fourth segment connected to each other. The third segment is located on the side of the second light-emitting unit away from the substrate and covers the sidewall of the isolation structure facing the isolation opening. The fourth segment is located on the side of the isolation structure away from the substrate and extends at least partially into the side of the second segment away from the substrate. Wherein, the first overlapping segment is disposed in the second segment, the second overlapping segment is disposed in the fourth segment, and the first overlapping segment is located within the first groove; Preferably, the first overlapping segment and the second overlapping segment are spaced apart along the thickness direction of the display panel.

5. The display panel according to claim 4, characterized in that, The second overlapping segment is located on the side of the first overlapping segment away from the substrate and protrudes from the side of the first groove away from the substrate. The fourth segment includes a first transition segment connecting the second overlapping segment and the third segment. The minimum distance between the side of the second overlapping segment away from the substrate and the substrate is a first distance. The minimum distance between the side of the first transition segment away from the substrate and the substrate is a second distance. The first distance is less than or equal to the second distance.

6. The display panel according to claim 4, characterized in that, Both the second overlapping segment and the first overlapping segment are located within the first groove. The fourth segment includes a first transition segment connecting the second overlapping segment and the third segment. The minimum distance between the side of the second overlapping segment away from the substrate and the substrate is the third distance. The minimum distance between the side of the first transition segment away from the substrate and the substrate is the second distance. The third distance is less than the second distance.

7. The display panel according to claim 1, characterized in that, The first groove is mesh-shaped and surrounds each of the isolation openings; Preferably, the first groove has a first extending direction, and the cross-section of the first groove along the thickness direction of the display panel and perpendicular to the first extending direction is rectangular, trapezoidal, or polygonal.

8. The display panel according to claim 1, characterized in that, The display panel further includes a pixel definition layer, which is disposed on the side of the isolation structure facing the substrate. The pixel definition layer includes a pixel limiting portion and a pixel opening formed by the pixel limiting portion. The pixel opening is connected to the isolation opening. The orthographic projection of the isolation structure on the substrate is located within the pixel limiting portion. Preferably, the pixel defining portion is provided with a first through groove, a portion of the isolation structure is filled in the first through groove, and the orthographic projections of the first groove and the first through groove on the substrate at least partially overlap; Preferably, the first through slot is disposed around the pixel opening.

9. The display panel according to claim 1, characterized in that, The display panel further includes a pixel definition layer and an insulating layer. The insulating layer, the pixel definition layer and the isolation structure are stacked sequentially along the direction away from the substrate. The pixel definition layer includes a pixel limiting portion and a pixel opening formed by the pixel limiting portion. The pixel opening is connected to the isolation opening. The orthogonal projection of the isolation structure on the substrate is located within the pixel limiting portion. Preferably, the insulating layer is provided with a recess, a portion of the pixel defining portion fills the recess to form a second groove on the side of the pixel defining portion away from the substrate, a portion of the isolation structure fills the second groove to form a first groove, the orthographic projection of the first groove on the substrate and the orthographic projection of the second groove on the substrate at least partially overlap, and the orthographic projection of the recess on the substrate and the orthographic projection of the second groove on the substrate at least partially overlap; Preferably, the orthographic projection of the recess on the substrate surrounds the orthographic projection of the light-emitting unit on the substrate; Preferably, the second groove is disposed around the pixel opening; Preferably, the recess is a groove structure; Preferably, the recess is a through-slot structure, and the recess penetrates the insulating layer along the thickness direction of the display panel.

10. The display panel according to claim 1, characterized in that, The display panel further includes a second encapsulation layer, which is disposed on the side of the first encapsulation layer away from the substrate.

11. The display panel according to claim 1, characterized in that, The isolation structure includes a first sub-layer and a second sub-layer. The first sub-layer has a third groove on the side away from the substrate. The third groove is disposed on at least part of the periphery of the isolation opening. The second sub-layer is located on the side of the first sub-layer away from the substrate. Part of the second sub-layer is located in the third groove. The side of the second sub-layer away from the third groove constitutes the first groove. Preferably, the orthographic projection of the first sublayer on the substrate lies within the orthographic projection of the second sublayer on the substrate.

12. The display panel according to claim 11, characterized in that, The isolation structure further includes a third sub-layer, which is disposed on the side of the first sub-layer facing the substrate; Preferably, the third sub-layer has a fourth groove, the orthographic projection of the fourth groove on the substrate at least partially overlapping the orthographic projection of the third groove on the substrate; Preferably, the orthographic projection of the first sublayer on the substrate lies within the orthographic projection of the third sublayer on the substrate.

13. A display panel, characterized in that, include: substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure encloses and forms a plurality of isolation openings; The light-emitting layer includes light-emitting units located at least partially within the isolation opening, the light-emitting units including a first light-emitting unit and a second light-emitting unit disposed adjacent to each other; The first encapsulation layer includes a first encapsulation portion for encapsulating the first light-emitting unit and a second encapsulation portion for encapsulating the second light-emitting unit. The first encapsulation portion includes a first overlapping segment located on the side of the isolation structure away from the substrate, and the second encapsulation portion includes a second overlapping segment located on the side of the isolation structure away from the substrate. The orthographic projection of the first overlapping segment on the substrate and the orthographic projection of the second overlapping segment on the substrate overlap. The isolation structure has a first groove on the side away from the substrate, and the orthographic projections of the first overlapping segment and the second overlapping segment on the substrate at least partially overlap with the orthographic projection of the first groove on the substrate.

14. The display panel according to claim 13, characterized in that, The orthographic projections of the first overlapping segment and the second overlapping segment on the substrate are located within the orthographic projection of the first groove on the substrate.

15. The display panel according to claim 14, characterized in that, At least one of the first overlapping segment and the second overlapping segment is located within the first groove.

16. The display panel according to claim 13, characterized in that, The first encapsulation portion includes a first segment, a second transition segment, and a first overlapping segment connected in sequence. The first segment is located on the side of the first light-emitting unit away from the substrate and covers the sidewall of the isolation structure facing the isolation opening. The second transition segment and the first overlapping segment are located on the side of the isolation structure away from the substrate. The second encapsulation portion includes a third segment, a first transition segment, and a second overlapping segment connected in sequence. The third segment is located on the side of the second light-emitting unit away from the substrate and covers the sidewall of the isolation structure facing the isolation opening. The first transition segment and the second overlapping segment are located on the side of the isolation structure away from the substrate. Wherein, the second overlapping segment is located on the side of the first overlapping segment away from the substrate, the first overlapping segment is located in the first groove, the minimum distance between the side of the second overlapping segment away from the substrate and the substrate is the first distance, the minimum distance between the side of the first transition segment away from the substrate and the substrate is the second distance, and the first distance is less than or equal to the second distance.

17. The display panel according to claim 16, characterized in that, Both the second overlapping segment and the first overlapping segment are located within the first groove. The minimum distance between the side of the second overlapping segment away from the substrate and the substrate is the third distance. The minimum distance between the side of the first transition segment away from the substrate and the substrate is the second distance. The third distance is less than the second distance.

18. The display panel according to claim 13, characterized in that, The display panel further includes a pixel definition layer, which is disposed on the side of the isolation structure facing the substrate. The pixel definition layer includes a pixel limiting portion and a pixel opening formed by the pixel limiting portion. The pixel opening is connected to the isolation opening. The orthographic projection of the isolation structure on the substrate is located within the pixel limiting portion. Preferably, the pixel defining portion is provided with a first through groove, a portion of the isolation structure is filled in the first through groove, and the orthographic projections of the first groove and the first through groove on the substrate at least partially overlap; Preferably, the first through slot is disposed around the pixel opening.

19. The display panel according to claim 13, characterized in that, The display panel further includes a pixel definition layer and an insulating layer. The insulating layer, the pixel definition layer and the isolation structure are stacked sequentially along the direction away from the substrate. The pixel definition layer includes a pixel limiting portion and a pixel opening formed by the pixel limiting portion. The pixel opening is connected to the isolation opening. The orthogonal projection of the isolation structure on the substrate is located within the pixel limiting portion. Preferably, the insulating layer is provided with a recess, a portion of the pixel defining portion fills the recess to form a second groove on the side of the pixel defining portion away from the substrate, a portion of the isolation structure fills the second groove to form a first groove, the orthographic projection of the first groove on the substrate and the orthographic projection of the second groove on the substrate at least partially overlap, and the orthographic projection of the recess on the substrate and the orthographic projection of the second groove on the substrate at least partially overlap; Preferably, the orthographic projection of the recess on the substrate surrounds the orthographic projection of the light-emitting unit on the substrate; Preferably, the second groove is disposed around the pixel opening.

20. A display device, characterized in that, Includes the display panel as described in any one of claims 1-19.

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