Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a substrate, an isolation structure, a light emitting unit and a first packaging layer. The first packaging layer comprises a packaging part, the packaging part comprises a first segment and a second segment which are connected with each other, the first segment is located in the isolation opening, and the second segment is located on the side, facing the isolation opening, of the isolation structure; the surface of one side, deviating from the substrate, of the first segment and the surface of one side, deviating from the isolation structure, of the second segment are at least partially connected to form a gap space; the isolation structure comprises a first sub-layer and a second sub-layer which are stacked, and the first sub-layer is provided with a top surface deviating from the substrate; the length of the second sub-layer protruding out of the first sub-layer towards the isolation opening is a, the orthographic projection of the gap space on the substrate has a first boundary far away from the isolation structure, the orthographic projection of the top surface on the substrate has a second boundary, and the distance between the first boundary and the second boundary is b, bgt; a. The yield and the use performance of the display panel are improved.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) and flat panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

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

[0004] The embodiments of the present application provide a display panel and a display device, aiming to improve the performance of OLED display products.

[0005] According to a first aspect of the present application, there is provided a display panel, which comprises a substrate, an isolation structure, a light-emitting unit and a first packaging layer; the display panel is arranged on one side of the substrate and encloses a plurality of isolation openings, the isolation structure comprises a first sublayer and a second sublayer located on the side of the first sublayer away from the substrate, the first sublayer comprises a top surface away from the substrate and a side wall facing the isolation opening, and the length of the second sublayer protruding from the side wall toward the isolation opening is a; the light-emitting unit is at least partially located in the isolation opening; the first packaging layer comprises a plurality of packaging parts, the packaging part comprises a first segment and a second segment connected to each other, the first segment is located in the isolation opening and arranged on the side of the light-emitting unit away from the substrate, the second segment is located on the side of the isolation structure facing the isolation opening, a side surface of the first segment away from the substrate and a side surface of the second segment away from the isolation structure are at least partially connected to each other to enclose a gap space; wherein, in the same isolation opening, the orthographic projection of the gap space on the substrate has a first boundary away from the isolation structure, the orthographic projection of the top surface on the substrate has a second boundary, and the distance between the first boundary and the second boundary is b, b>a.

[0006] According to the implementation scheme of the first aspect of the present application, 1.5a≤b≤2.5a.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, b=2a.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel also includes a pixel defining portion arranged on a side of the isolation structure close to the substrate, wherein the pixel defining portion has a first orthographic projection on the substrate, the second sublayer has a second orthographic projection on the substrate, and the first orthographic projection includes a projection portion located outside the second orthographic projection; the second segment has a third boundary facing the isolation opening in the orthographic projection on the substrate, and the third boundary is located within the projection portion.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, within the same isolation opening, the distance between the third boundary and the second boundary is c, and b<c.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the connection between the side surface of the first segment facing away from the substrate and the side surface of the second segment facing away from the isolation structure is a connection area, and the orthographic projection of the connection area on the substrate includes a first boundary and a fourth boundary, the fourth boundary is located on the side of the first boundary facing away from the isolation structure, and the distance between the fourth boundary and the second boundary is d, d≤c.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the first segment includes a main body support portion, the support portion is located on a side of the main body away from the substrate and extends toward the second segment, and the support portion is connected to the second segment.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, one end of the main body facing the isolation structure and one end of the second segment facing the substrate are connected to each other.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel defining portion encloses a plurality of pixel openings, the pixel openings are connected to the corresponding isolation openings, and the opening areas of the pixel openings gradually increase in a direction away from the substrate.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the main body includes a first sub-section and a second sub-section that are interconnected, the orthographic projection of the first sub-section on the substrate is located within the orthographic projection of the pixel opening on the substrate, and the orthographic projection of the second sub-section on the substrate is located within the orthographic projection of the pixel defining portion on the substrate.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the second segment includes a first portion arranged on the side of the second sublayer facing the isolation opening, the support portion and the first portion are interconnected to enclose a gap space, and the first portion extends toward a side away from the substrate.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, at least part of the gap space is located between the second sub-layer and the substrate.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, the second segment also includes a second part arranged on the side of the first sublayer facing the isolation opening, the first part is spaced apart from the main body, the second part is spaced apart from the support part, and the first part, the second part, the support part and the main body are enclosed to form a gap space.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the packaging part also includes a third segment, the third segment is located on the side of the second sublayer away from the substrate, one end of the second segment extends toward the side away from the substrate and is connected to the third segment, the third segment is spaced apart from the isolation structure, and a support structure is filled between the third segment and the isolation structure.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel further includes a second encapsulation layer disposed on a side of the first encapsulation layer facing away from the substrate, and at least part of the material of the second encapsulation layer extends between the third segment and the isolation structure to form a supporting structure.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, at least a portion of the second encapsulation layer is located on a side of the third segment away from the isolation structure.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the first encapsulation layer includes an inorganic material, and / or the material of the second encapsulation layer includes an organic material.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure further includes a third sublayer disposed on a side of the first sublayer facing the substrate, and the third sublayer is disposed protruding from the first sublayer toward the isolation opening.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, the gap space is a closed structure.

[0024] The embodiment of the first aspect of the present application further provides a display panel, comprising a substrate, a pixel defining portion, an isolation structure, a light-emitting unit and a first encapsulation layer; the pixel defining portion is arranged on one side of the substrate; the isolation structure is located on the side of the pixel defining portion away from the substrate and encloses a plurality of isolation openings, the isolation structure comprises a first sublayer and a second sublayer located on the side of the first sublayer away from the substrate, the first sublayer comprises a top surface away from the substrate and a side wall facing the isolation opening, the second sublayer protrudes from the side wall toward the isolation opening; the light-emitting unit is at least partially located in the isolation opening; the first encapsulation layer comprises a plurality of encapsulation portions, the encapsulation portions comprise mutually connected The first segment and the second segment are connected, the first segment is located in the isolation opening and is arranged on the side of the light-emitting unit facing away from the substrate, the second segment is located on the side of the isolation structure facing the isolation opening, and the side surface of the first segment facing away from the substrate and the side surface of the second segment facing away from the isolation structure are at least partially connected to each other to enclose a gap space; wherein the pixel defining portion has a first orthographic projection on the substrate, the second sublayer has a second orthographic projection on the substrate, the first orthographic projection includes a projection portion located outside the second orthographic projection; the second segment has a third boundary on the orthographic projection of the substrate facing the isolation opening, and the third boundary is located within the projection portion.

[0025] According to an implementation scheme of the first aspect of the present application, within the same isolation opening, the orthographic projection of the gap space on the substrate has a first boundary away from the isolation structure, the orthographic projection of the top surface on the substrate has a second boundary, the distance between the first boundary and the second boundary is b, the distance between the third boundary and the second boundary is c, and b<c.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the connection between the side surface of the first segment facing away from the substrate and the side surface of the second segment facing away from the isolation structure is a connection area, and the orthographic projection of the connection area on the substrate includes a first boundary and a fourth boundary, the fourth boundary is located on the side of the first boundary facing away from the isolation structure, and the distance between the fourth boundary and the second boundary is d, d≤c.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel defining portion encloses a plurality of pixel openings, the pixel openings are connected to the corresponding isolation openings, and the opening areas of the pixel openings gradually increase in a direction away from the substrate.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the first segment includes a main body and a support portion, the support portion is located on a side of the main body away from the substrate and extends toward the second segment, and the support portion is connected to the second segment.

[0029] According to any of the aforementioned embodiments of the first aspect of the present application, one end of the main body facing the isolation structure and one end of the second segment facing the substrate are connected to each other.

[0030] According to any of the aforementioned embodiments of the first aspect of the present application, the main body includes a first sub-section and a second sub-section that are interconnected, the orthographic projection of the first sub-section on the substrate is located within the orthographic projection of the pixel opening on the substrate, and the orthographic projection of the second sub-section on the substrate is located within the orthographic projection of the pixel defining portion on the substrate.

[0031] According to any of the aforementioned embodiments of the first aspect of the present application, the second segment includes a first portion arranged on the side of the second sublayer facing the isolation opening, the support portion and the first portion are interconnected to enclose a gap space, and the first portion extends toward a side away from the substrate.

[0032] According to any of the aforementioned embodiments of the first aspect of the present application, at least part of the gap space is located between the second sub-layer and the substrate.

[0033] According to any of the aforementioned embodiments of the first aspect of the present application, the second segment also includes a second part arranged on the side of the first sublayer facing the isolation opening, the first part is spaced apart from the main body, the second part is spaced apart from the support part, and the first part, the second part, the support part and the main body are enclosed to form a gap space.

[0034] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure further includes a third sublayer disposed on a side of the first sublayer facing the substrate, and the third sublayer is disposed protruding from the first sublayer toward the isolation opening.

[0035] According to any of the aforementioned embodiments of the first aspect of the present application, the gap space is a closed structure.

[0036] According to any of the aforementioned embodiments of the first aspect of the present application, the packaging part also includes a third segment, the third segment is located on the side of the second sublayer away from the substrate, one end of the second segment extends toward the side away from the substrate and is connected to the third segment, the third segment is spaced apart from the isolation structure, and a support structure is filled between the third segment and the isolation structure.

[0037] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel further includes a second encapsulation layer disposed on a side of the first encapsulation layer facing away from the substrate, and at least part of the material of the second encapsulation layer extends between the third segment and the isolation structure to form a supporting structure.

[0038] According to any of the aforementioned embodiments of the first aspect of the present application, at least a portion of the second encapsulation layer is located on a side of the third segment away from the isolation structure.

[0039] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the first encapsulation layer includes an inorganic material, and / or the material of the second encapsulation layer includes an organic material.

[0040] An embodiment of a second aspect of the present application provides a display device, which includes a display panel according to any of the above embodiments.

[0041] According to the display panel of the embodiment of the present application, the display panel includes a substrate, an isolation structure, a light-emitting unit and a first encapsulation layer. The isolation structure is arranged on one side of the substrate and encloses an isolation opening, the light-emitting unit is at least partially located in the isolation opening, and the isolation structure can be used to divide the sub-pixels of the display panel. The isolation structure is arranged on the substrate and encloses a plurality of isolation openings to separate the light-emitting layer to form mutually disconnected light-emitting units, thereby reducing the crosstalk of carriers in the light-emitting layer, improving the display effect of the display panel, and the light-emitting unit does not need to use a precision mask plate to prepare the light-emitting unit, which can reduce the development and use of precision masks and reduce the preparation cost. The first encapsulation layer is arranged on the side of the light-emitting unit away from the substrate, and the first encapsulation layer includes a first segment and a second segment. The first segment is located in the isolation opening and is arranged on the side of the light-emitting unit away from the substrate, and the second segment is located on the side of the isolation structure facing the isolation opening. The first encapsulation layer can be used to encapsulate the light-emitting unit. By arranging that a side surface of the first segment facing away from the substrate and a side surface of the second segment facing away from the isolation structure are at least partially connected to each other, and the first segment and the second segment are enclosed to form a gap space and a connection area, the first segment can provide better support for the second segment, making it difficult for the second segment to separate from the isolation structure, thereby better improving the packaging effect of the first packaging layer on the display panel.

[0042] The second sublayer is arranged to protrude from the first sublayer toward the isolation opening. Along the direction perpendicular to the substrate, the distance a that the second sublayer protrudes from the first sublayer toward the isolation opening is, and the distance b between the first boundary of the positive projection of the gap space away from the isolation structure and the second boundary of the top surface of the first sublayer is. By limiting b>a, the connection position between the first segment and the second segment can be located outside the first sublayer, so that when preparing the first encapsulation layer, the influence of the first segment and the second segment being connected to form a sealing structure on the preparation of the first encapsulation layer can be reduced, so that the material for preparing the first encapsulation layer can be deposited on the isolation structure more evenly to form a complete encapsulation structure, thereby improving the yield and performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features and the accompanying drawings are not drawn to scale.

[0044] Figure 1 It is a partial structural schematic diagram of an isolation structure in a display panel provided in an embodiment of the present application;

[0045] Figure 2 is a partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0046] Figure 3 yes Figure 2 A magnified view of part A;

[0047] Figure 4 is a partial cross-sectional view of a display panel provided by another embodiment of the present application;

[0048] Figure 5 is a schematic structural diagram of a first segment in a display panel provided in an embodiment of the present application;

[0049] Figure 6 This is a partial cross-sectional view of a display panel provided in yet another embodiment of the present application.

[0050] Description of reference numerals:

[0051] 1. Substrate;

[0052] 2. pixel definition layer; 21. pixel definition portion; 22. pixel opening;

[0053] 3. Isolation structure; 30. Isolation opening; 31. First sublayer; 311. Top surface; 32. Second sublayer; 33. Third sublayer;

[0054] 4. light-emitting layer; 41. light-emitting unit;

[0055] 5. first encapsulation layer; 50. encapsulation part; 51. first segment; 511. main body; 5111. first subsection; 5112. second subsection; 512. support part; 52. second segment; 521. first part; 522. second part; 53. third segment; 500. gap space; 510. connection area; 5100. first boundary; 5200. second boundary; 5300. third boundary; 5400. fourth boundary;

[0056] 6. Second packaging layer; 61. Support structure; 71. First electrode layer; 711. First electrode; 72. Second electrode layer; 721. Second electrode; 8. Third packaging layer. DETAILED DESCRIPTION

[0057] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, 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.

[0059] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0060] Embodiments of the present application provide a display panel and a display device. Embodiments of the display panel and the display device will be described below in conjunction with the accompanying drawings.

[0061] Please also read Figures 1 to 3 , Figure 1 It is a partial structural schematic diagram of an isolation structure in a display panel provided in an embodiment of the present application; Figure 2 is a partial cross-sectional view of a display panel provided in an embodiment of the present application; Figure 3 yes Figure 2 Enlarged view of part A.

[0062] like Figures 1 to 3As shown, the first aspect of the present application provides a display panel, which includes a substrate 1, an isolation structure 3, a light-emitting layer 4 and a first encapsulation layer 5; the isolation structure 3 is arranged on one side of the substrate 1 and encloses a plurality of isolation openings 30, the isolation structure 3 includes a first sublayer 31 and a second sublayer 32 located on the side of the first sublayer 31 away from the substrate 1, the first sublayer 31 includes a top surface 311 away from the substrate 1 and a side wall facing the opening, and the length of the second sublayer 32 protruding from the side wall toward the isolation opening 30 is a; the light-emitting layer 4 includes a plurality of light-emitting units 41, and the light-emitting units 41 are at least partially located in the isolation opening 30; the first encapsulation layer 5 includes a plurality of encapsulation parts 50 for encapsulating the light-emitting units 41, and the encapsulation parts 50 It includes a first segment 51 and a second segment 52 that are connected to each other. The first segment 51 is located in the isolation opening 30 and is arranged on the side of the light-emitting unit 41 facing away from the substrate 1. The second segment 52 is located on the side of the isolation structure 3 facing the isolation opening 30. The side surface of the first segment 51 facing away from the substrate 1 and the side surface of the second segment 52 facing away from the isolation structure 3 are at least partially connected to each other to enclose a gap space 500; wherein, in the same isolation opening 30, the orthographic projection of the gap space 500 on the substrate 1 has a first boundary 5100 away from the isolation structure 3, and the orthographic projection of the top surface 311 on the substrate 1 has a second boundary 5200, and the distance between the first boundary 5100 and the second boundary 5200 is b, b>a.

[0063] Optionally, the orthographic projection of the gap space 500 on the substrate 1 has a first boundary 5100 away from the isolation structure 3, which can be understood as: defining the connection between the side surface of the first segment 51 facing away from the substrate 1 and the side surface of the second segment 52 facing away from the isolation structure 3 as the connection area 510, and the orthographic projection of the connection area 510 on the substrate 1 includes two boundaries, wherein the boundary close to the isolation structure 3 coincides with the first boundary 5100, and the two are the same boundary. That is, the first boundary 5100 is formed by the connection between the side surface of the first segment 51 facing away from the substrate 1 and the side surface of the second segment 52 facing away from the isolation structure 3.

[0064] Optionally, the above structure can be referred to in the orthographic projection direction of the substrate 1 Figure 2 The Z-axis direction in the figure, and the direction indicated by the Z-axis can also be the thickness direction of the display panel.

[0065] Optional, such as Figure 1 As shown, the isolation structure 3 may be in a grid shape, so as to facilitate the division of sub-pixels in the display panel by the isolation structure 3. The hollowed-out areas in the grid-shaped isolation structure 3 may be isolation openings 30.

[0066] In a display panel provided in an embodiment of the present application, the display panel includes a substrate 1, an isolation structure 3, a light-emitting unit 41 and a first encapsulation layer 5. The isolation structure 3 is arranged on one side of the substrate 1 and encloses an isolation opening 30, and the light-emitting unit 41 is at least partially located in the isolation opening 30. The isolation structure 3 can be used to divide the sub-pixels of the display panel. The isolation structure 3 is arranged on the substrate 1 and encloses a plurality of isolation openings 30 to separate the light-emitting layer 4 to form mutually disconnected light-emitting units 41, thereby reducing the crosstalk of carriers in the light-emitting layer 4 and improving the display effect of the display panel. In addition, the light-emitting unit 41 does not need to use a precision mask plate to prepare, which can reduce the development and use of precision masks and reduce the preparation cost.

[0067] The composition, preparation and other contents of the isolation structure 3 are further described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, and PCT / CN2024 / 099072 for reference.

[0068] The first encapsulation layer 5 is arranged on the side of the light-emitting unit 41 away from the substrate 1. The first encapsulation layer 5 includes a first segment 51 and a second segment 52. The first segment 51 is located in the isolation opening 30 and is arranged on the side of the light-emitting unit 41 away from the substrate 1. The second segment 52 is located on the side of the isolation structure 3 facing the isolation opening 30. The first encapsulation layer 5 can be used to encapsulate the light-emitting unit 41. By arranging that the side surface of the first segment 51 away from the substrate 1 and the side surface of the second segment 52 away from the isolation structure 3 are at least partially connected to each other, and the first segment 51 and the second segment 52 are enclosed to form a gap space 500 and a connection area 510, the first segment 51 can play a good supporting role for the second segment 52, so that the second segment 52 is not easy to separate from the isolation structure 3, thereby being able to better improve the encapsulation effect of the first encapsulation layer 5 on the display panel.

[0069] The second sublayer 32 is arranged to protrude from the first sublayer 31 toward the isolation opening 30. Along the direction perpendicular to the substrate 1, the distance a that the second sublayer 32 protrudes from the first sublayer 31 toward the isolation opening 30 is, and the distance b between the first boundary 5100 of the positive projection of the gap space 500 away from the isolation structure 3 and the second boundary 5200 of the top surface 311 of the first sublayer 31 is. By limiting b>a, the connection position between the first segment 51 and the second segment 52 can be located on the outside of the first sublayer 31, so that when preparing the first encapsulation layer 5, the influence of the first segment 51 and the second segment 52 being connected to each other to form a sealing structure can be reduced, so that the material for preparing the first encapsulation layer 5 can be deposited on the isolation structure 3 more evenly to form a complete encapsulation structure, thereby improving the yield and performance of the display panel.

[0070] Optionally, the first encapsulation layer 5 may be prepared by a chemical vapor deposition (CVD) process.

[0071] Reference Figure 3 , in some optional embodiments, 1.5a≤b≤2.5a. By limiting b to be not less than 1.5a, the distance between the connection area 510 and the second sublayer 32 can be at least 0.5a along the direction perpendicular to the substrate 1, thereby further reducing the influence of the sealing structure on the preparation of the first encapsulation layer 5. By limiting b to be not greater than 2.5a, the problem that the connection position between the first sublayer 31 and the second sublayer 32 is too far from the second sublayer 32, it is difficult to form a gap space 500, more encapsulation materials are required, and it is easy to cause encapsulation failure can be reduced. This embodiment further improves the encapsulation effect of the first encapsulation layer 5. For example, the value of b can be 1.5a, 1.8a, 2a, 2.2a or 2.5a. Optionally, b=2a.

[0072] Optionally, the display panel further includes a second encapsulation layer 6 and a third encapsulation layer 8 disposed on the side of the first encapsulation layer 5 facing away from the substrate 1, wherein the material of the second encapsulation layer 6 may include an organic material, so that the second encapsulation layer 6 may have good fluidity, so that the surface of the second encapsulation layer 6 facing away from the substrate 1 is relatively flat. The material of the third encapsulation layer 8 may include an inorganic material to further enhance the encapsulation effect of the display panel. Optionally, the second encapsulation layer 6 may be prepared by inkjet printing technology (InkJet Printing, IJP); the third encapsulation layer 8 may be prepared by a chemical vapor deposition process.

[0073] Optionally, the display panel further includes a touch layer, a polarizing layer and a cover plate disposed on the third encapsulation layer 8. The touch layer can be used to realize the touch operation of the display panel, the polarizing layer can be used to filter light to improve the display effect of the display panel, and the cover plate can be used to protect the underlying film layer to improve the strength of the display panel.

[0074] Reference Figure 2 In some optional embodiments, the display panel further includes a first electrode layer 71 and a second electrode layer 72, the first electrode layer 71 includes a first electrode 711, the first electrode 711 is disposed between the substrate 1 and the light-emitting unit 41, the second electrode layer 72 includes a second electrode 721 located between the light-emitting unit 41 and the packaging portion 50, one of the first electrode 711 and the second electrode 721 can be used as an anode, and the other can be used as a cathode to drive the light-emitting unit 41 to emit light. The embodiment of the present application is described by taking the first electrode 711 as the anode of the display panel and the second electrode 721 as the cathode of the display panel as an example.

[0075] In some optional embodiments, the material of the isolation structure 3 includes a conductive material, and the second electrode 721 is connected to the isolation structure 3. The isolation structure 3 separates the second electrode layer 72 to form mutually spaced second electrodes 721, and the mutually spaced second electrodes 721 are electrically connected through the isolation structure 3 to form a whole-surface electrode, thereby ensuring the normal light emission of the light-emitting unit 41. Optionally, the material of the first sublayer 31 may include a conductive material, and the second electrode 721 may be connected to the first sublayer 31, so that the second electrodes 721 of adjacent sub-pixels can be electrically connected through the first sublayer 31.

[0076] Optionally, when vapor-depositing the light-emitting layer 4 and the second electrode layer 72 of the display panel, the second sublayer 32 is capable of shielding at least part of the material used to prepare the light-emitting layer 4 and the second electrode layer 72 to separate the light-emitting layer 4 and the second electrode layer 72 between adjacent sub-pixels, and facilitates the formation of a plurality of light-emitting units 41 that are spaced apart and located within the isolation opening 30, and facilitates the formation of a plurality of second electrodes 721 that are spaced apart and located within the isolation opening 30, thereby making it unnecessary to set a mask with high precision when vapor-depositing the light-emitting layer 4 and the second electrode layer 72 of the display panel, for example, making it unnecessary to set a high-precision metal mask (Fine Metal Mask, FMM) when vapor-depositing the light-emitting layer 4 and the second electrode layer 72, thereby effectively reducing the production and preparation cost of the display panel.

[0077] See also Figure 4 , Figure 4 It is a partial cross-sectional view of a display panel provided by another embodiment of the present application.

[0078] Reference Figure 4In some optional embodiments, the isolation structure 3 further includes a third sublayer 33 disposed on the side of the first sublayer 31 facing the substrate 1, and the third sublayer 33 is disposed protruding from the first sublayer 31 toward the isolation opening 30. The material of the third sublayer 33 may include a conductive material, and the second electrode 721 may be connected to the third sublayer 33, so that the second electrodes 721 of adjacent sub-pixels can be electrically connected through the third sublayer 33. By arranging the third sublayer 33 to protrude from the first sublayer 31 toward the isolation opening 30, the third sublayer 33 may have a larger size to facilitate connection with the second electrode 721.

[0079] Optionally, the light-emitting unit 41 may 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).

[0080] In some optional embodiments, an array layer may be included between the substrate 1 and the light-emitting layer 4, and the array layer may include a driving circuit. For example, the array layer may include a first conductive layer, a second conductive layer, and a third conductive layer that are arranged on one side of the substrate 1 and are stacked. An insulating layer is provided between adjacent conductive layers. Exemplarily, the pixel driving circuit provided in the array layer includes a transistor and a storage capacitor. The transistor includes a semiconductor, a gate, a source and a drain. The storage capacitor includes a first plate and a second plate. As an example, the gate and the first plate may be located in the first conductive layer, the second plate may be located in the second conductive layer, and the source and the drain may be located in the third conductive layer.

[0081] Combined with reference Figure 2 and Figure 3 In some optional embodiments, the display panel further includes a pixel definition layer 2 disposed on a side of the isolation structure 3 close to the substrate 1, the pixel definition layer 2 includes a pixel defining portion 21 and the pixel defining portion 21 encloses a plurality of pixel openings 22, the orthographic projection of the pixel opening 22 on the substrate 1 is located within the orthographic projection of the isolation opening 30 on the substrate 1, and at least part of the light-emitting unit 41 is located within the pixel opening 22, wherein the pixel defining portion 21 has a first orthographic projection on the substrate 1, the second sublayer 32 has a second orthographic projection on the substrate 1, and the first orthographic projection includes a projection portion located outside the second orthographic projection; the orthographic projection of the second segment 52 on the substrate 1 has a third boundary 5300 facing the isolation opening 30, and the third boundary 5300 is located within the projection portion.

[0082] A depression is formed in the area where the pixel opening 22 is located. When the light-emitting unit 41, the first encapsulation layer 5 and other structures are deposited on the pixel definition layer 2, they will adaptively change with the depression of the pixel opening 22. If the connection position between the second segment 52 and the first segment 51 is located in the concave area of ​​the first segment 51, the connection area 510 is set away from the second segment 52 due to the influence of the concave structure, which can easily lead to the failure of the connection between the first segment 51 and the second segment 52, and then cause the encapsulation failure of the first encapsulation layer 5.

[0083] In these optional embodiments, by limiting the third boundary 5300 to be within the projection portion, that is, the third boundary 5300 is located directly above the pixel defining portion 21, thereby avoiding the depression of the pixel opening 22, the encapsulation reliability of the first encapsulation layer 5 is improved.

[0084] like Figure 3 As shown, in some optional embodiments, in the same isolation opening 30 , the distance between the third boundary 5300 and the second boundary 5200 is c, and b<c.

[0085] In these embodiments, by limiting b to be less than c, the connection position of the second segment 52 and the first segment 51 can avoid the pixel opening 22 area in the thickness direction of the display panel, that is, there is a non-overlapping portion between the orthographic projection of the connection area 510 on the substrate 1 and the orthographic projection of the pixel opening 22 on the substrate 1, so that the connection area 510 is mainly located above the flat pixel defining portion 21, reducing the influence of the pixel opening 22 structure on the connection of the second segment 52 and the first segment 51 to form a sealing structure, so that the first segment 51 can support the second segment 52 more stably, improve the encapsulation reliability of the first encapsulation layer 5, and further improve the yield and performance of the display panel. Optionally, the orthographic projection of the connection area 510 on the substrate 1 and the orthographic projection of the pixel opening 22 on the substrate 1 are arranged at intervals.

[0086] Optionally, the opening area of ​​the pixel opening 22 gradually increases in the direction away from the substrate 1. The pixel opening 22 set in this way facilitates the climbing of the light-emitting unit 41 and the second electrode 721, can increase the light-emitting area of ​​the light-emitting unit 41, and facilitates the overlap of the second electrode 721 and the isolation structure 3 to form a whole-surface electrode. The first segment 51 located on the pixel opening 22 is recessed toward the pixel opening 22, that is, the top surface 311 of the first segment 51 has an inner surface located in the concave area and an outer surface located outside the concave area. By limiting b to be less than c, the connection area 510 can be located on the outer surface, avoiding the connection area 510 being located on the inner surface, thereby causing poor packaging.

[0087] Combined with reference Figure 3 and Figure 5Optionally, the orthographic projection of the connection region 510 on the substrate 1 includes a first boundary 5100 and a fourth boundary 5400, the fourth boundary 5400 is located on the side of the first boundary 5100 away from the isolation structure 3, and the distance between the fourth boundary 5400 and the second boundary 5200 is d, d≤c. Optionally, the first boundary 5100 and the fourth boundary 5400 are both annular, and the fourth boundary 5400 is located inside the first boundary 5100, that is, the size of the fourth boundary 5400 is smaller than the size of the first boundary 5100, and the first boundary 5100 is closer to the isolation structure 3 than the fourth boundary 5400.

[0088] In these optional embodiments, by limiting d≤c, the connection areas 510 can all be located on the pixel defining portion 21, thereby avoiding the setting of the pixel opening 22, that is, the connection areas 510 are all located above the pixel defining portion 21, so that the first segment 51 can support the second segment 52 more stably, thereby improving the packaging reliability of the first packaging layer 5, and thereby improving the yield and performance of the display panel.

[0089] Reference Figure 2 In some optional embodiments, the first segment 51 includes a main body 511 and a support portion 512, the support portion 512 is located on a side of the main body 511 away from the substrate 1 and extends toward the second segment 52, and the connection area 510 is located on the support portion 512. The support portion 512 and the second segment 52 are connected to each other, so that the first segment 51 and the second segment 52 participate in enclosing and forming the gap space 500.

[0090] Optionally, one end of the main body 511 facing the isolation structure 3 and one end of the second segment 52 facing the substrate 1 are interconnected, so that the gap space 500 can be formed by the main body 511, the support portion 512 and the second segment 52, and there are two connection points between the first segment 51 and the second segment 52, which can better improve the structural stability of the first packaging layer 5, and further make it difficult to separate from the isolation structure 3, thereby better improving the packaging effect of the first packaging layer 5 on the display panel.

[0091] Optional, see Figure 3 The main body 511 includes a first sub-section 5111 and a second sub-section 5112 connected to each other. The orthographic projection of the first sub-section 5111 on the substrate 1 is located within the orthographic projection of the pixel opening 22 on the substrate 1, and the orthographic projection of the second sub-section 5112 on the substrate 1 is located within the orthographic projection of the pixel defining portion 21 on the substrate 1. The end of the main body 511 facing the isolation structure 3 and the end of the second sub-section 52 facing the substrate 1 are connected to each other, which can mean that the end of the second sub-section 5112 facing the isolation structure 3 and the end of the second sub-section 52 facing the substrate 1 are connected to each other. Among them, the gap space 500 can be formed by the second sub-section 5112, the support portion 512 and the second sub-section 52.

[0092] Optionally, the orthographic projection of the supporting portion 512 on the substrate 1 may be arranged to at least partially overlap with the orthographic projection of the pixel defining portion 21 on the substrate 1, that is, at least part of the supporting portion 512 may be located on the side of the pixel defining portion 21 facing away from the substrate 1, so that the pixel defining portion 21 can raise the position of the supporting portion 512 to facilitate the connection between the supporting portion 512 and the second segment 52.

[0093] Reference Figure 3 In some optional embodiments, the second segment 52 includes a first portion 521 disposed on the side of the second sublayer 32 facing the isolation opening 30, the support portion 512 and the first portion 521 are interconnected to enclose a gap space 500, and the first portion 521 extends toward a side away from the substrate 1.

[0094] The first portion 521 extending toward the side away from the substrate 1 can be understood as: an end of the first portion 521 away from the substrate 1 can extend upward beyond the second sub-layer 32 .

[0095] Optionally, at least part of the gap space 500 is located between the second sub-layer 32 and the substrate 1. Since the second sub-layer 32 is arranged to protrude from the first sub-layer 31 toward the isolation opening 30, the first portion 521 arranged on the side of the second sub-layer 32 facing the isolation opening 30 can be easily connected to the support portion 512, that is, it can facilitate the support portion 512 to support the second segment 52, so that the second segment 52 is not easy to separate from the isolation structure 3.

[0096] Optionally, the second segment 52 also includes a second part 522 arranged on the side of the first sublayer 31 facing the isolation opening 30, the first part 521 is spaced apart from the main body 511, and the second part 522 is spaced apart from the support part 512, and the first part 521, the second part 522, the support part 512 and the main body 511 are enclosed to form a gap space 500.

[0097] Optionally, the end of the second portion 522 facing away from the substrate 1 may be connected to the first portion 521, specifically, the end of the second portion 522 facing away from the substrate 1 may be integrally connected to the first portion 521 covering the surface of the second sublayer 32 facing the substrate 1. Optionally, the end of the second portion 522 facing the substrate 1 may be interconnected with the end of the main body 511 facing the isolation structure 3, for example, the end of the second portion 522 facing the substrate 1 may be interconnected with the end of the second sub-portion 5112 facing the isolation structure 3. Optionally, the gap space 500 may be formed by enclosing the first portion 521, the second portion 522, the second sub-portion 5112 and the support portion 512.

[0098] See also Figure 5 , Figure 5 It is a structural schematic diagram of a first segment in a display panel provided in an embodiment of the present application.

[0099] Combined with reference Figures 2 to 5 In some optional embodiments, the support portion 512 has a ring-shaped orthographic projection on the substrate 1 , and the connecting area 510 and the second segment 52 are interconnected so that the first segment 51 and the second segment 52 enclose a gap space 500 .

[0100] Optionally, the orthographic projection of the support portion 512 on the substrate 1 is annular, which may mean that the orthographic projection of the support portion 512 on the substrate 1 is a closed annular shape, so as to form a closed gap space 500. Optionally, the gap space 500 is a closed structure, wherein the first segment 51 and the second segment 52 enclose the closed gap space 500 and may not be connected to other external spaces, so as to further improve the structural stability of the first segment 51 and the second segment 52.

[0101] Optionally, the orthographic projection of the support portion 512 on the substrate 1 may be arranged around the orthographic projection of the pixel opening 22 on the substrate 1. Optionally, the orthographic projection of the second segment 52 on the substrate 1 may be arranged around the orthographic projection of the support portion 512 on the substrate 1.

[0102] In these optional embodiments, by setting the support portion 512 to have a ring-shaped projection on the substrate 1, a larger connection area is provided between the support portion 512 in the isolation opening 30 and the second segment 52 on the peripheral side of the isolation structure 3, so that the support portion 512 in the isolation opening 30 can better support the second segment 52 on the peripheral side of the isolation structure 3, thereby better improving the supporting effect of the support portion 512 on the second segment 52, making it difficult for the first segment 51 to separate from the isolation structure 3, and better improving the packaging effect of the first packaging layer 5 on the display panel.

[0103] See also Figure 6 , Figure 6 This is a partial cross-sectional view of a display panel provided in yet another embodiment of the present application.

[0104] Reference Figure 6 In some optional embodiments, the encapsulation portion 50 further includes a third segment 53, the third segment 53 is located on the side of the second sublayer 32 away from the substrate 1, one end of the second segment 52 extends toward the side away from the substrate 1 and is connected to the third segment 53, the third segment 53 is spaced apart from the isolation structure 3, and the third segment 53 located on the side of the isolation structure 3 away from the substrate 1 can better improve the path of water vapor intrusion into the light-emitting unit 41, so as to better improve the encapsulation effect of the first encapsulation layer 5 on the light-emitting unit 41. Optionally, the third segment 53 is connected to one end of the second segment 52 away from the substrate 1.

[0105] Optionally, a support structure 61 may be filled between the third segment 53 and the isolation structure 3, and the support structure 61 filled between the third segment 53 and the isolation structure 3 may play a better limiting role for the third segment 53. For example, the support structure 61 filled between the third segment 53 and the isolation structure 3 may be used to support the third segment 53, so that the third segment 53 is not likely to break and fall off toward the isolation structure 3, thereby better improving the structural stability of the first encapsulation layer 5.

[0106] Optionally, at least part of the material of the second encapsulation layer 6 may extend to between the third segment 53 and the isolation structure 3 to form a support structure 61 , so that part of the material of the second encapsulation layer 6 may also be used to support the third segment 53 .

[0107] Optionally, at least part of the second encapsulation layer 6 may also be located on the side of the third segment 53 away from the isolation structure 3, so that the third segment 53 can be better wrapped by the second encapsulation layer 6, so as to further enhance the limiting effect of the second encapsulation layer 6 on the third segment 53, so that the second encapsulation layer 6 can limit the third segment 53 from falling off and breaking toward the pixel opening 22, thereby better improving the structural stability of the first encapsulation layer 5.

[0108] Please also read Figures 1 to 6The embodiment of the first aspect of the present application further provides a display panel, including a substrate 1, a pixel definition layer 2, an isolation structure 3, a light-emitting layer 4 and a first encapsulation layer 5; the pixel definition layer 2 includes a pixel definition portion 21 and a pixel opening 22 located on one side of the substrate 1; the isolation structure 3 is arranged on the side of the pixel definition portion 21 away from the substrate 1 and encloses a plurality of isolation openings 30, the orthographic projection of the pixel opening 22 on the substrate 1 is located within the orthographic projection of the isolation opening 30 on the substrate 1, the isolation structure 3 includes a first sublayer 31 and a second sublayer 32 located on the side of the first sublayer 31 away from the substrate 1, the first sublayer 31 includes a top surface 311 away from the substrate 1 and a side wall facing the opening, and the second sublayer 32 is protruded from the side wall toward the isolation opening 30; the light-emitting layer 4 includes a plurality of light-emitting units 41, and the light-emitting units 41 are at least partially located in the pixel opening 22; the first The encapsulation layer 5 includes a plurality of encapsulation parts 50 for encapsulating the light-emitting unit 41, and the encapsulation part 50 includes a first segment 51 and a second segment 52 connected to each other, the first segment 51 is located in the isolation opening 30 and is arranged on the side of the light-emitting unit 41 facing away from the substrate 1, and the second segment 52 is located on the side of the isolation structure 3 facing the isolation opening 30, and the side surface of the first segment 51 facing away from the substrate 1 and the side surface of the second segment 52 facing away from the isolation structure 3 are at least partially connected to each other to enclose a gap space 500; wherein, the pixel defining part 21 has a first orthographic projection on the substrate 1, and the second sublayer 32 has a second orthographic projection on the substrate 1, and the first orthographic projection includes a projection part located outside the second orthographic projection; the orthographic projection of the second segment 52 on the substrate 1 has a third boundary 5300 facing the isolation opening 30, and the third boundary 5300 is located within the projection part.

[0109] In a display panel provided in an embodiment of the present application, the display panel includes a substrate 1, a pixel definition layer 2, an isolation structure 3, a light-emitting unit 41 and a first encapsulation layer 5. The pixel definition portion 21 is arranged on one side of the substrate 1, the isolation structure 3 is arranged on the side of the pixel definition portion 21 away from the substrate 1 and encloses to form an isolation opening 30, the orthographic projection of the pixel opening 22 on the substrate 1 is located within the orthographic projection of the isolation opening 30 on the substrate 1, the light-emitting unit 41 is at least partially located within the pixel opening 22, and the isolation structure 3 can be used to divide the sub-pixels of the display panel. The isolation structure 3 is arranged on the substrate 1 and encloses to form a plurality of isolation openings 30 to separate the light-emitting layer 4 to form mutually disconnected light-emitting units 41, thereby reducing the crosstalk of carriers in the light-emitting layer 4 and improving the display effect of the display panel. In addition, the light-emitting unit 41 does not need to use a precision mask plate to prepare the light-emitting unit 41, which can reduce the development and use of the precision mask plate and reduce the preparation cost.

[0110] A depression is formed in the area where the pixel opening 22 is located. When the light-emitting unit 41, the first encapsulation layer 5 and other structures are deposited on the pixel definition layer 2, they will change adaptively with the depression of the pixel opening 22. If the connection position between the second segment 52 and the first segment 51 is located in the concave area of ​​the first segment 51, the connection area 510 is set away from the second segment 52 due to the influence of the concave structure, which easily leads to the connection failure between the first segment 51 and the second segment 52, and then leads to the problem of encapsulation failure of the first encapsulation layer 5. The embodiment of the present application avoids the depression of the pixel opening 22 by limiting the third boundary 5300 to be located within the projection part, that is, the third boundary 5300 is located directly above the pixel definition part 21, thereby improving the encapsulation reliability of the first encapsulation layer 5.

[0111] Optionally, the gap space 500 has a first boundary 5100 away from the isolation structure 3 in its orthographic projection on the substrate 1, which can be understood as: the connection between the side surface of the first segment 51 facing away from the substrate 1 and the side surface of the second segment 52 facing away from the isolation structure 3 is defined as a connection area 510, and the orthographic projection of the connection area 510 on the substrate 1 includes two boundaries, wherein the boundary close to the isolation structure 3 coincides with the first boundary 5100, that is, the two are the same boundary.

[0112] In some optional embodiments, within the same isolation opening 30, the orthographic projection of the gap space 500 on the substrate 1 has a first boundary 5100 away from the isolation structure 3, the orthographic projection of the top surface 311 on the substrate 1 has a second boundary 5200, the distance between the first boundary 5100 and the second boundary 5200 is b, and the distance between the third boundary 5300 and the second boundary 5200 is c, b<c.

[0113] In these optional embodiments, by limiting b to be less than c, the connection position between the second segment 52 and the first segment 51 can avoid the pixel opening 22 area in the thickness direction of the display panel, that is, there is a non-overlapping portion between the orthographic projection of the connection area 510 on the substrate 1 and the orthographic projection of the pixel opening 22 on the substrate 1, so that the connection area 510 is mainly located above the flat pixel defining portion 21, reducing the influence of the pixel opening 22 structure on the connection between the second segment 52 and the first segment 51 to form a sealing structure, allowing the first segment 51 to support the second segment 52 more stably, thereby improving the packaging reliability of the first packaging layer 5, and thereby improving the yield and performance of the display panel.

[0114] Optionally, the orthographic projection of the connection region 510 on the substrate 1 further includes a fourth boundary 5400, the fourth boundary 5400 is located on the side of the first boundary 5100 away from the isolation structure 3, and the distance between the fourth boundary 5400 and the second boundary 5200 is d, d≤c. Optionally, the first boundary 5100 and the fourth boundary 5400 are both annular, and the fourth boundary 5400 is located inside the first boundary 5100, that is, the size of the fourth boundary 5400 is smaller than the size of the first boundary 5100, and the first boundary 5100 is closer to the isolation structure 3 than the fourth boundary 5400.

[0115] In these optional embodiments, by limiting d≤c, the connection areas 510 can all be located on the pixel defining portion 21, thereby avoiding the setting of the pixel opening 22, that is, the connection areas 510 are all located above the pixel defining portion 21, so that the first segment 51 can support the second segment 52 more stably, thereby improving the packaging reliability of the first packaging layer 5, and thereby improving the yield and performance of the display panel.

[0116] Optionally, a display panel provided in an embodiment of the first aspect of the present application may be the display panel in any of the aforementioned embodiments. Therefore, a display panel provided in an embodiment of the present application may have the beneficial effects of the display panel in any of the aforementioned embodiments, and the present application will not elaborate on it. For example, the substrate 1 may be the substrate 1 in any of the aforementioned embodiments. For example, the encapsulation portion 50 may be the encapsulation portion 50 in any of the aforementioned embodiments. For example, the display panel may also include a first electrode layer 71 and a second electrode layer 72 in any of the aforementioned embodiments. For example, the isolation structure 3 may be the isolation structure 3 in any of the aforementioned embodiments, and the isolation structure 3 may include the first sublayer 31, the second sublayer 32 and the third sublayer 33 in any of the aforementioned embodiments, so that the isolation structure 3 can be used to isolate the materials of the light-emitting layer 4 and the second electrode layer 72 when preparing the light-emitting layer 4 and the second electrode layer 72, and the second electrodes 721 in adjacent isolation openings 30 can also be electrically connected to each other through the isolation structure 3 to form a surface electrode. For example, the display panel may further include the pixel opening 22 in any of the foregoing embodiments, and the size of the pixel opening 22 gradually increases in the direction away from the substrate 1, so as to facilitate the climbing of the light-emitting unit 41 and the second electrode 721, thereby increasing the light-emitting area of ​​the light-emitting unit 41 and facilitating the overlap of the second electrode 721 and the isolation structure 3 to form a whole-surface electrode. For example, the display panel may further include the second encapsulation layer 6 and the third encapsulation layer 8 in any of the foregoing embodiments to improve the flatness of the display panel and further enhance the encapsulation effect.

[0117] The embodiment of the second aspect of the present application provides a display device, which includes the display panel of any of the above-mentioned embodiments. Since the display device provided by the embodiment of the second aspect of the present application includes the display panel provided by any of the above-mentioned embodiments of the first aspect, the display device provided by the embodiment of the second aspect of the present application has the beneficial effects of the display panel of any of the above-mentioned embodiments of the first aspect, which will not be repeated here.

[0118] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0119] According to the embodiments described above, these embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and the modifications based on the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that: include: substrate; an isolation structure, arranged on one side of the substrate and enclosing a plurality of isolation openings, the isolation structure comprising a first sublayer and a second sublayer located on a side of the first sublayer away from the substrate, the first sublayer comprising a top surface away from the substrate and a sidewall facing the isolation opening, and the second sublayer protruding from the sidewall toward the isolation opening by a length a; a plurality of light emitting units, wherein the light emitting units are at least partially located in the isolation opening; A first encapsulation layer includes a plurality of encapsulation parts, wherein the encapsulation part includes a first segment and a second segment connected to each other, wherein the first segment is located in the isolation opening and is disposed on a side of the light-emitting unit away from the substrate, and the second segment is located on a side of the isolation structure facing the isolation opening, and a surface of a side of the first segment away from the substrate and a surface of a side of the second segment away from the isolation structure are at least partially connected to each other to enclose a gap space; Wherein, within the same isolation opening, the gap space has a first boundary on the orthographic projection of the substrate away from the isolation structure, and the top surface has a second boundary on the orthographic projection of the substrate, and the distance between the first boundary and the second boundary is b, b>a.

2. The display panel according to claim 1, characterized in that: 1.5a≤b≤2.5a; Preferably, b=2a.

3. The display panel according to claim 1, characterized in that: The display panel further includes a pixel defining portion disposed on a side of the isolation structure close to the substrate, wherein: The pixel defining portion has a first orthographic projection on the substrate, the second sub-layer has a second orthographic projection on the substrate, and the first orthographic projection includes a projection portion located outside the second orthographic projection; The orthographic projection of the second segment on the substrate has a third boundary facing the isolation opening, and the third boundary is located within the projection portion.

4. The display panel according to claim 3, characterized in that: In the same isolation opening, the distance between the third boundary and the second boundary is c, b<c; Preferably, the connection between the side surface of the first segment facing away from the substrate and the side surface of the second segment facing away from the isolation structure is a connection area, and the orthographic projection of the connection area on the substrate includes the first boundary and the fourth boundary, the fourth boundary is located on the side of the first boundary facing away from the isolation structure, and the distance between the fourth boundary and the second boundary is d, d≤c.

5. The display panel according to claim 3, characterized in that: The first segment includes a main body and a support portion, wherein the support portion is located on a side of the main body away from the substrate and extends toward the second segment, and the support portion is connected to the second segment; Preferably, one end of the main body portion facing the isolation structure and one end of the second segment facing the substrate are connected to each other; Preferably, the pixel defining portion encloses a plurality of pixel openings, the pixel openings are connected to the corresponding isolation openings, and the opening areas of the pixel openings gradually increase in a direction away from the substrate; Preferably, the main body includes a first subsection and a second subsection which are connected to each other, wherein the orthographic projection of the first subsection on the substrate is located within the orthographic projection of the pixel opening on the substrate, and the orthographic projection of the second subsection on the substrate is located within the orthographic projection of the pixel defining portion on the substrate.

6. The display panel according to claim 5, characterized in that: The second segment includes a first portion disposed on a side of the second sub-layer facing the isolation opening, the support portion and the first portion are connected to each other to enclose and form the gap space, and the first portion extends toward a side away from the substrate; Preferably, at least part of the gap space is located between the second sub-layer and the substrate; Preferably, the second segment also includes a second part arranged on the side of the first sublayer facing the isolation opening, the first part is spaced apart from the main body, the second part is spaced apart from the support part, and the first part, the second part, the support part and the main body together form the gap space.

7. The display panel according to any one of claims 1 to 6, characterized in that: The encapsulation part further includes a third segment, the third segment is located on a side of the second sub-layer away from the substrate, one end of the second segment extends toward the side away from the substrate and is connected to the third segment, the third segment is spaced apart from the isolation structure, and a support structure is filled between the third segment and the isolation structure; Preferably, the display panel further comprises a second encapsulation layer disposed on a side of the first encapsulation layer away from the substrate, and at least a portion of the material of the second encapsulation layer extends between the third segment and the isolation structure to form the support structure; Preferably, at least part of the second encapsulation layer is located on a side of the third segment away from the isolation structure; Preferably, the material of the first encapsulation layer includes an inorganic material, and / or the material of the second encapsulation layer includes an organic material.

8. The display panel according to any one of claims 1 to 6, characterized in that: The isolation structure further includes a third sublayer disposed on a side of the first sublayer facing the substrate, and the third sublayer is disposed protruding from the first sublayer toward the isolation opening; Preferably, the gap space is a closed structure.

9. A display panel, characterized in that: include: substrate; A pixel defining portion, disposed on one side of the substrate; an isolation structure, located on a side of the pixel defining portion away from the substrate and enclosing a plurality of isolation openings, the isolation structure comprising a first sublayer and a second sublayer located on a side of the first sublayer away from the substrate, the first sublayer comprising a top surface away from the substrate and a sidewall facing the isolation opening, and the second sublayer protruding from the sidewall toward the isolation opening; a plurality of light emitting units, wherein the light emitting units are at least partially located in the isolation opening; A first encapsulation layer includes a plurality of encapsulation parts, wherein the encapsulation part includes a first segment and a second segment connected to each other, wherein the first segment is located in the isolation opening and is disposed on a side of the light-emitting unit away from the substrate, and the second segment is located on a side of the isolation structure facing the isolation opening, and a surface of a side of the first segment away from the substrate and a surface of a side of the second segment away from the isolation structure are at least partially connected to each other to enclose a gap space; The pixel defining portion has a first orthographic projection on the substrate, the second sublayer has a second orthographic projection on the substrate, and the first orthographic projection includes a projection portion located outside the second orthographic projection; The orthographic projection of the second segment on the substrate has a third boundary facing the isolation opening, and the third boundary is located within the projection portion.

10. The display panel according to claim 9, characterized in that: In the same isolation opening, the orthographic projection of the gap space on the substrate has a first boundary away from the isolation structure, the orthographic projection of the top surface on the substrate has a second boundary, the distance between the first boundary and the second boundary is b, the distance between the third boundary and the second boundary is c, b<c; Preferably, the connection between the side surface of the first segment facing away from the substrate and the side surface of the second segment facing away from the isolation structure is a connection area, and the orthographic projection of the connection area on the substrate includes the first boundary and the fourth boundary, the fourth boundary is located on the side of the first boundary facing away from the isolation structure, and the distance between the fourth boundary and the second boundary is d, d≤c.

11. The display panel according to claim 9, characterized in that: The pixel defining portion encloses a plurality of pixel openings, the pixel openings are connected to the corresponding isolation openings, and the opening areas of the pixel openings gradually increase in a direction away from the substrate; Preferably, the first segment includes a main body and a support portion, the support portion is located on a side of the main body away from the substrate and extends toward the second segment, and the support portion is connected to the second segment; Preferably, one end of the main body portion facing the isolation structure and one end of the second segment facing the substrate are connected to each other; Preferably, the main body includes a first subsection and a second subsection which are connected to each other, wherein the orthographic projection of the first subsection on the substrate is located within the orthographic projection of the pixel opening on the substrate, and the orthographic projection of the second subsection on the substrate is located within the orthographic projection of the pixel defining portion on the substrate.

12. The display panel according to claim 11, characterized in that: The second segment includes a first portion disposed on a side of the second sub-layer facing the isolation opening, the support portion and the first portion are connected to each other to enclose and form the gap space, and the first portion extends toward a side away from the substrate; Preferably, at least part of the gap space is located between the second sub-layer and the substrate; Preferably, the second segment also includes a second part arranged on the side of the first sublayer facing the isolation opening, the first part is spaced apart from the main body, the second part is spaced apart from the support part, and the first part, the second part, the support part and the main body together form the gap space.

13. The display panel according to any one of claims 9 to 12, characterized in that: The isolation structure further includes a third sublayer disposed on a side of the first sublayer facing the substrate, and the third sublayer is disposed protruding from the first sublayer toward the isolation opening; Preferably, the gap space is a closed structure.

14. The display panel according to any one of claims 9 to 12, characterized in that: The encapsulation part further includes a third segment, the third segment is located on a side of the second sub-layer away from the substrate, one end of the second segment extends toward the side away from the substrate and is connected to the third segment, the third segment is spaced apart from the isolation structure, and a support structure is filled between the third segment and the isolation structure; Preferably, the display panel further comprises a second encapsulation layer disposed on a side of the first encapsulation layer away from the substrate, and at least a portion of the material of the second encapsulation layer extends between the third segment and the isolation structure to form the support structure; Preferably, at least part of the second encapsulation layer is located on a side of the third segment away from the isolation structure; Preferably, the material of the first encapsulation layer includes an inorganic material, and / or the material of the second encapsulation layer includes an organic material.

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

Images