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 layer and a first packaging layer. The isolation structure is located on one side of the substrate, and a plurality of isolation openings are defined by the isolation structure; the light-emitting layer comprises a plurality of light-emitting units arranged at intervals, and the light-emitting units are at least partially located in the isolation openings; the first packaging layer comprises a plurality of packaging parts used for packaging the light emitting units, the plurality of packaging parts comprise a first packaging part and a second packaging part which are adjacently arranged, the first packaging part extends to the side, away from the substrate, of the isolation structure, and the second packaging part extends to the side, away from the substrate, of the isolation structure; the orthographic projection of the first packaging part on the substrate and the orthographic projection of the second packaging part on the substrate are at least partially overlapped; wherein the thickness of a film layer of the first packaging part is different from that of a film layer of the second packaging part. The reliability and the use performance of the display panel are improved.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel and display device. Background Technology

[0002] Organic light-emitting diodes (OLEDs) and flat panel displays based on light-emitting diodes (LEDs) are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body, and wide range of applications, becoming the mainstream of display devices.

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

[0004] This application provides a display panel and display device, which aim to improve the reliability of OLED display products.

[0005] A first aspect of this application provides a display panel, including a substrate, an isolation structure, a light-emitting layer, and a first encapsulation layer; the isolation structure is located on one side of the substrate and forms a plurality of isolation openings; the light-emitting layer includes a plurality of spaced-apart light-emitting units, at least partially located in the isolation openings; the first encapsulation layer includes a plurality of encapsulation portions for encapsulating each light-emitting unit, the plurality of encapsulation portions including adjacent first encapsulation portions and second encapsulation portions, the first encapsulation portions extending to the side of the isolation structure away from the substrate, the second encapsulation portions extending to the side of the isolation structure away from the substrate, and the orthographic projection of the first encapsulation portion on the substrate and the orthographic projection of the second encapsulation portion on the substrate at least partially overlap; wherein the film thickness of the first encapsulation portion is different from the film thickness of the second encapsulation portion.

[0006] According to an embodiment of the first aspect of this application, the film thickness of the first encapsulation portion is less than the film thickness of the second encapsulation portion.

[0007] The first package includes a first main body extending toward the second package. The isolation structure between the first package and the second package includes a first half-region and a second half-region connected to each other. The first half-region is disposed close to the first package, and the second half-region is disposed close to the second package. The edge of the first main body in the orthographic projection of the substrate is at least partially located within the orthographic projection of the second half-region on the substrate.

[0008] According to any of the foregoing embodiments of the first aspect of this application, the first encapsulation portion includes a first segment and a second segment. The first segment is located on the side of the light-emitting unit away from the substrate and extends to 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 includes a first main body portion. The second encapsulation portion includes a third segment and a fourth segment. The third segment is located on the side of the light-emitting unit away from the substrate and extends to 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. The orthographic projection of the second segment on the substrate and the orthographic projection of the fourth segment on the substrate at least partially overlap.

[0009] According to any of the foregoing embodiments of the first aspect of this application, the film thickness of the second segment is less than the film thickness of the fourth segment.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the film thickness of the first segment is less than the film thickness of the third segment.

[0011] According to any of the foregoing embodiments of the first aspect of this application, the first segment includes a first sub-segment and a second sub-segment connected to each other. The first sub-segment is located on the side of the light-emitting unit away from the substrate, and the second sub-segment is located on the side of the isolation structure facing the isolation opening. The second sub-segment extends along the sidewall of the isolation structure and is connected to the second segment. The surface of the first sub-segment away from the substrate and the surface of the second sub-segment away from the isolation structure are at least partially spaced apart and form a communicating opening.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the third segment includes a third sub-segment and a fourth sub-segment connected to each other. The third sub-segment is located on the side of the light-emitting unit away from the substrate, and the fourth sub-segment is located on the side of the isolation structure facing the isolation opening. The fourth sub-segment extends along the sidewall of the isolation structure and is connected to the fourth segment. The surface of the third sub-segment away from the substrate and the surface of the fourth sub-segment away from the isolation structure are at least partially connected to each other to enclose and form a gap space.

[0013] According to any of the foregoing embodiments of the first aspect of this application, the fourth segment includes a second main body portion that extends toward the first main body portion.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the film thickness of the first main body portion is less than the film thickness of the second main body portion.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the first main body portion on the substrate and the orthographic projection of the second main body portion on the substrate are spaced apart.

[0016] According to any of the foregoing embodiments of the first aspect of this application, the second segment further includes a first sidewall and a first overlapping portion. The first sidewall is connected between the first overlapping portion and the first main body portion. The first overlapping portion is located on the side of the second main body portion away from the substrate. The orthographic projection of the first overlapping portion on the substrate at least partially overlaps with the orthographic projection of the second main body portion on the substrate.

[0017] According to any of the foregoing embodiments of the first aspect of this application, the film thickness of the first overlapping portion is less than the film thickness of the second main body portion.

[0018] According to any of the foregoing embodiments of the first aspect of this application, the fourth segment further includes a second sidewall and a second overlapping portion. The second sidewall is connected between the second overlapping portion and the second main body portion. The second overlapping portion is located on the side of the first main body portion away from the substrate. The orthographic projection of the second overlapping portion onto the substrate at least partially overlaps with the orthographic projection of the first main body portion onto the substrate.

[0019] According to any of the foregoing embodiments of the first aspect of this application, the film thickness of the second overlapping portion is greater than the film thickness of the first main body portion.

[0020] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure includes a first isolation portion and a second isolation portion located on the side of the first isolation portion away from the substrate, wherein the second isolation portion protrudes out of the first isolation portion toward the isolation opening.

[0021] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate, and the third isolation portion protrudes from the first isolation portion toward the isolation opening.

[0022] According to any of the foregoing embodiments of the first aspect of this application, the first isolation portion includes a conductive material, and / or, the third isolation portion includes a conductive material.

[0023] According to any of the foregoing embodiments of the first aspect of this application, the first isolation portion has a first orthographic projection on the substrate, and the orthographic projection of the first main body portion on the substrate has a first boundary, the first boundary being located within the first orthographic projection.

[0024] According to any of the foregoing embodiments of the first aspect of this application, along the direction from the isolation opening to the adjacent isolation opening, the first orthographic projection includes a second boundary and a third boundary, the second boundary is disposed near the first encapsulation part, the third boundary is disposed near the second encapsulation part, and the distance between the first boundary and the second boundary is greater than the distance between the first boundary and the third boundary.

[0025] According to any of the foregoing embodiments of the first aspect of this application, the first boundary, the second boundary, and the third boundary are parallel to each other.

[0026] According to any of the foregoing embodiments of the first aspect of this application, the distance between the second boundary and the third boundary is A, and the distance between the first boundary and the third boundary is b, where b < 0.5A.

[0027] According to any of the foregoing embodiments of the first aspect of this application, a first gap is formed between the second segment and the isolation structure, and / or a second gap is formed between the fourth segment and the isolation structure, and / or a third gap is formed between the second segment and the fourth segment.

[0028] According to any of the foregoing embodiments of the first aspect of this application, the light-emitting layer further includes redundant units located on the side of the isolation structure away from the substrate; at least some of the redundant units are located in a first gap, and / or, at least some of the redundant units are located in a second gap, and / or, at least some of the redundant units are located in a third gap.

[0029] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a second encapsulation layer disposed on the side of the first encapsulation layer away from the substrate, and the second encapsulation layer at least partially fills the third gap.

[0030] According to any of the foregoing embodiments of the first aspect of this application, the material of the first encapsulation layer includes inorganic materials, and / or the material of the second encapsulation layer includes organic materials.

[0031] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a pixel definition layer, which is located on one side of the substrate and encloses a plurality of pixel openings, the pixel openings are connected to the isolation openings, and the light-emitting units are at least partially located within the pixel openings.

[0032] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure is located on the side of the pixel definition layer away from the substrate, or a clearance opening is provided on the pixel definition layer, and the isolation structure is located within the clearance opening.

[0033] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a first electrode layer and a second electrode layer. The first electrode layer is disposed between the pixel definition layer and the substrate, and includes a first electrode that is electrically connected to the light-emitting unit. The second electrode layer is disposed on the side of the light-emitting layer away from the substrate, and includes a second electrode that is electrically connected to the light-emitting unit.

[0034] According to any of the foregoing embodiments of the first aspect of this application, the material of the isolation structure includes a conductive material, and the second electrode is electrically connected to the isolation structure.

[0035] According to any of the foregoing embodiments of the first aspect of this application, the second encapsulation portion includes a second main body portion extending toward the first encapsulation portion, and the isolation structure located between the first encapsulation portion and the second encapsulation portion includes a first half-region and a second half-region connected to each other, the first half-region being disposed close to the first encapsulation portion, the second half-region being disposed close to the second encapsulation portion, and the edge of the second main body portion in the orthographic projection of the substrate being located outside the orthographic projection of the first half-region on the substrate.

[0036] A first aspect of this application also provides a display panel, including a substrate, an isolation structure, a light-emitting layer, and a first encapsulation layer. The isolation structure is located on one side of the substrate and forms a plurality of isolation openings. The isolation structure includes a first isolation portion and a second isolation portion located on the side of the first isolation portion away from the substrate. The second isolation portion protrudes from the first isolation portion toward the isolation openings. The light-emitting layer includes a plurality of spaced-apart light-emitting units, at least partially located in the isolation openings. The first encapsulation layer includes a plurality of encapsulation portions for encapsulating each light-emitting unit. The plurality of encapsulation portions include adjacent first encapsulation portions and second encapsulation portions. The first encapsulation portions extend to the side of the isolation structure away from the substrate, and the second encapsulation portions extend to the side of the isolation structure away from the substrate. On one side of the board, the orthographic projection of the first encapsulation portion on the substrate and the orthographic projection of the second encapsulation portion on the substrate at least partially overlap; wherein, the film thickness of the first encapsulation portion is less than the film thickness of the second encapsulation portion, the first encapsulation portion includes a first main body portion extending toward the second encapsulation portion, and the orthographic projection of the first main body portion on the substrate has a first boundary; along the direction from the isolation opening to the adjacent isolation opening, the first isolation portion has a first orthographic projection on the substrate, the first orthographic projection includes a second boundary and a third boundary, the second boundary is disposed close to the first encapsulation portion, the third boundary is disposed close to the second encapsulation portion, the first boundary is located between the second boundary and the third boundary, and the distance between the first boundary and the second boundary is greater than the distance between the first boundary and the third boundary.

[0037] According to the first aspect of this application, the distance between the second boundary and the third boundary is A, and the distance between the first boundary and the third boundary is b, where b < 0.5A.

[0038] According to any of the foregoing embodiments of the first aspect of this application, the first boundary, the second boundary, and the third boundary are parallel to each other.

[0039] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate, and the third isolation portion protrudes from the first isolation portion toward the isolation opening.

[0040] According to any of the foregoing embodiments of the first aspect of this application, the first isolation portion includes a conductive material, and / or, the third isolation portion includes a conductive material.

[0041] According to any of the foregoing embodiments of the first aspect of this application, the first encapsulation portion includes a first segment and a second segment. The first segment is located on the side of the light-emitting unit away from the substrate and extends to 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 includes a first main body portion. The second encapsulation portion includes a third segment and a fourth segment. The third segment is located on the side of the light-emitting unit away from the substrate and extends to 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. The orthographic projection of the second segment on the substrate and the orthographic projection of the fourth segment on the substrate at least partially overlap.

[0042] According to any of the foregoing embodiments of the first aspect of this application, the fourth segment includes a second main body portion that extends toward the first main body portion.

[0043] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the first main body portion on the substrate and the orthographic projection of the second main body portion on the substrate are spaced apart.

[0044] According to any of the foregoing embodiments of the first aspect of this application, the second segment further includes a first sidewall and a first overlapping portion. The first sidewall is connected between the first overlapping portion and the first main body portion. The first overlapping portion is located on the side of the second main body portion away from the substrate. The orthographic projection of the first overlapping portion on the substrate at least partially overlaps with the orthographic projection of the second main body portion on the substrate.

[0045] According to any of the foregoing embodiments of the first aspect of this application, the fourth segment further includes a second sidewall and a second overlapping portion. The second sidewall is connected between the second overlapping portion and the second main body portion. The second overlapping portion is located on the side of the first main body portion away from the substrate. The orthographic projection of the second overlapping portion onto the substrate at least partially overlaps with the orthographic projection of the first main body portion onto the substrate.

[0046] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a pixel definition layer, a first electrode layer, and a second electrode layer; the pixel definition layer is located on one side of the substrate and surrounds a plurality of pixel openings, the pixel openings are connected to the isolation openings, and the light-emitting unit is at least partially located within the pixel openings; the first electrode layer is disposed between the pixel definition layer and the substrate, the first electrode layer includes a first electrode, and the first electrode is electrically connected to the light-emitting unit; the second electrode layer is disposed on the side of the light-emitting layer away from the substrate, the second electrode layer includes a second electrode, and the second electrode is electrically connected to the light-emitting unit.

[0047] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure is located on the side of the pixel definition layer away from the substrate, or a clearance opening is provided on the pixel definition layer, and the isolation structure is located within the clearance opening.

[0048] According to any of the foregoing embodiments of the first aspect of this application, the material of the isolation structure includes a conductive material, and the second electrode is electrically connected to the isolation structure.

[0049] An embodiment of the second aspect of this application provides a display device, which includes a display panel of any of the above embodiments.

[0050] According to an embodiment of this application, the display panel includes a substrate, an isolation structure, a light-emitting layer, and a first encapsulation layer. At least two encapsulation portions corresponding to adjacent light-emitting units extend towards each other above the isolation structure, such that the orthographic projections of the encapsulation portions corresponding to the two adjacent light-emitting units on the substrate at least partially overlap. That is, the orthographic projections of the first encapsulation portion and the second encapsulation portion on the substrate at least partially overlap, resulting in a larger distribution area of ​​the encapsulation portions. The overlap of at least some 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 other encapsulation portions, making the relative position between the covered encapsulation portion and the isolation structure more stable. The covered encapsulation portion is less prone to damage, avoiding encapsulation failure and further improving the reliability and performance of the display panel.

[0051] By setting the film thickness of the first encapsulation portion to be less than that of the second encapsulation portion, the thinner material of the first encapsulation portion is more conducive to patterning during the manufacturing process of the display panel, while the thicker material of the second encapsulation portion is less susceptible to damage from subsequent etching processes, thus improving the encapsulation stability of the second encapsulation portion. This application embodiment, through differentiated manufacturing of different encapsulation portions, combines the advantages of good encapsulation stability and simplified manufacturing process. Attached Figure Description

[0052] 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, in which the same or similar reference numerals denote the same or similar features, and the drawings are not drawn to scale.

[0053] Figure 1 This is a partial structural diagram of the isolation structure and encapsulation part in a display panel provided in an embodiment of this application;

[0054] Figure 2 This is an embodiment provided by this application. Figure 1 One of the sectional views at point AA;

[0055] Figure 3 This is an embodiment provided by this application. Figure 1 Sectional view at point AA (second section);

[0056] Figure 4 This is one of the partial cross-sectional views of a display panel provided in an embodiment of this application;

[0057] Figure 5This is a second partial cross-sectional view of a display panel provided in one embodiment of this application;

[0058] Figure 6 This is a third partial cross-sectional view of a display panel provided in one embodiment of this application;

[0059] Figure 7 This is a fourth partial cross-sectional view of a display panel provided in one embodiment of this application;

[0060] Figure 8 This is an embodiment provided by this application. Figure 1 Sectional view at point AA (third section);

[0061] Figure 9 This is an embodiment provided by this application. Figure 1 Sectional view at point AA, Part 4.

[0062] Explanation of reference numerals in the attached figures:

[0063] 1. Substrate;

[0064] 2. Pixel definition layer; 21. Pixel aperture;

[0065] 3. Isolation structure; 30. Isolation opening; 301. First half-zone; 302. Second half-zone; 31. First isolation section; 32. Second isolation section; 33. Third isolation section; 311. First boundary; 312. Second boundary; 313. Third boundary;

[0066] 4. Light-emitting layer; 41. Light-emitting unit;

[0067] 5. First encapsulation layer; 50. Encapsulation part; 51. First encapsulation part; 511. First segment; 5111. First sub-segment; 5112. Second sub-segment; 512. Second segment; 5121. First main body; 5122. First sidewall; 5123. First overlapping part; 5110. Connecting opening; 52. Second encapsulation part; 521. Third segment; 5211. Third sub-segment; 5212. Fourth sub-segment; 5222. Fourth segment; 5221. Second main body; 5222. Second sidewall; 5223. Second overlapping part; 5210. Gap space; Q1. First gap; Q2. Second gap; Q3. Third gap;

[0068] 6. Second encapsulation layer; 71. First electrode layer; 711. First electrode; 72. Second electrode layer; 721. Second electrode; 8. Third encapsulation layer. Detailed Implementation

[0069] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0071] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0072] In this embodiment, for ease of explanation, the portion with a thinner film thickness relative to adjacent film thicknesses is referred to as the first encapsulation portion, and the portion with a thicker film thickness relative to adjacent film thicknesses is referred to as the second encapsulation portion. The first and second encapsulation portions do not define their positions. That is, two adjacent, overlapping encapsulation portions have different film thicknesses. The encapsulation portion with a relatively thinner film thickness is defined as the first encapsulation portion, and the encapsulation portion with a relatively thicker film thickness is defined as the second encapsulation portion.

[0073] This application provides a display panel and a display device. The following description, in conjunction with the accompanying drawings, will illustrate various embodiments of the display panel and the display device.

[0074] Please refer to the following: Figures 1 to 4 , Figure 1 This is a partial structural diagram of the isolation structure and encapsulation part in a display panel provided in an embodiment of this application.

[0075] like Figures 1 to 3 As shown, a first aspect embodiment of this 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 located on one side of the substrate 1 and forms a plurality of isolation openings 30. The light-emitting layer 4 includes a plurality of spaced-apart light-emitting units 41, and the light-emitting units 41 are at least partially located in the isolation openings 30. The first encapsulation layer 5 includes a plurality of encapsulation portions 50 for encapsulating each light-emitting unit 41. The plurality of encapsulation portions 50 include a first encapsulation portion 51 and a second encapsulation portion 52 arranged adjacent to each other. The first encapsulation portion 51 extends to the side of the isolation structure 3 away from the substrate 1, and the second encapsulation portion 52 extends to the side of the isolation structure 3 away from the substrate 1. The orthographic projection of the first encapsulation portion 51 on the substrate 1 and the orthographic projection of the second encapsulation portion 52 on the substrate 1 at least partially overlap. The film thickness of the first encapsulation portion 51 is less than the film thickness of the second encapsulation portion 52.

[0076] Optionally, since the film thickness of the encapsulation portion 50 may vary at different locations, the fact that the film thickness of the first encapsulation portion 51 is less than the film thickness of the second encapsulation portion 52 can be understood as: the maximum film thickness of the first encapsulation portion 51 is less than the maximum film thickness of the second encapsulation portion 52, or the minimum film thickness of the first encapsulation portion 51 is less than the minimum film thickness of the second encapsulation portion 52. For the sake of brevity, the following description of film thickness is the same as here.

[0077] Optionally, the above structure can be referenced in the orthographic projection direction of substrate 1. Figure 2 The Z-axis direction can also be the thickness direction of the display panel.

[0078] Optional, such as Figure 1 As shown, the isolation structure 3 can be in the form of a grid to facilitate the division of sub-pixels in the display panel. The hollowed-out areas in the grid-shaped isolation structure 3 can be isolation openings 30.

[0079] Figure 1 The location of the packaging section 50 is indicated by a dashed line. The dashed line does not constitute a limitation on the structure of this application. The dashed line is used to define the location and distribution range of the packaging section 50.

[0080] In a display panel provided in this application embodiment, the display panel includes a substrate 1, an isolation structure 3, a light-emitting layer 4, and a first encapsulation layer 5. At least two encapsulation portions 50 corresponding to adjacent light-emitting units 41 extend towards each other above the isolation structure 3, such that the orthographic projections of the encapsulation portions 50 corresponding to the two adjacent light-emitting units 41 on the substrate 1 at least partially overlap. That is, the orthographic projections of the first encapsulation portion 51 and the second encapsulation portion 52 on the substrate 1 at least partially overlap, resulting in a larger distribution area of ​​the encapsulation portions 50. The overlap of at least some adjacent encapsulation portions 50 expands the distribution area of ​​the encapsulation portions 50 and improves the encapsulation effect. Furthermore, at least one encapsulation portion 50 is covered by other encapsulation portions 50, making the relative position between the covered encapsulation portion 50 and the isolation structure 3 more stable. The covered encapsulation portion 50 is less prone to damage, avoiding encapsulation failure and further improving the reliability and performance of the display panel.

[0081] By setting the film thickness of the first encapsulation portion 51 to be less than that of the second encapsulation portion 52, the thinner material of the first encapsulation portion 51 is more conducive to patterning during the manufacturing process of the display panel, while the thicker material of the second encapsulation portion 52 is less susceptible to damage from subsequent etching processes, thereby improving the encapsulation stability of the second encapsulation portion 52. This embodiment of the application, by differentiating the fabrication of different encapsulation portions 50, can combine the advantages of good encapsulation stability and simplified manufacturing process.

[0082] An isolation structure 3 is disposed on the substrate 1 and encloses multiple isolation openings 30 to isolate the light-emitting layer 4, forming mutually disconnected light-emitting units 41. This reduces crosstalk of charge carriers within the light-emitting layer 4, improves the display effect of the display panel, and eliminates the need for precision photomasks in the fabrication of the light-emitting units 41, thus reducing the development and use of precision photomasks and lowering manufacturing costs. The first encapsulation layer 5 includes an encapsulation portion 50 for encapsulating each light-emitting unit 41. The encapsulation portion 50 provides encapsulation protection to the light-emitting units 41, achieving independent encapsulation and improving the yield of the light-emitting units 41 affected by water and oxygen intrusion.

[0083] The composition and preparation 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.

[0084] Optionally, multiple isolation openings 30 are spaced apart along the row and column directions, and the direction from one isolation opening 30 to the next is the row or column direction. For example... Figure 1As shown, the row direction can be the first direction X, and the column direction can be the second direction Y.

[0085] 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. The material of the first encapsulation layer 5 may include inorganic materials, which have good density and good barrier properties against moisture and oxygen. The material of the second encapsulation layer 6 may include organic materials to give the second encapsulation layer 6 good flowability and make the surface of the second encapsulation layer 6 facing away from the substrate 1 relatively flat. The material of the third encapsulation layer 8 may include inorganic materials to further improve the encapsulation effect of the display panel.

[0086] Optionally, the first encapsulation layer 5 can be prepared by chemical vapor deposition (CVD). Optionally, the second encapsulation layer 6 can be prepared by inkjet printing (IJP). Optionally, the third encapsulation layer 8 can be prepared by chemical vapor deposition.

[0087] Optionally, the display panel also includes a touch layer, a polarizing layer, and a cover plate disposed on the third encapsulation layer 8. The touch layer is used to enable touch operation of the display panel, the polarizing layer is used to filter light to improve the display effect of the display panel, and the cover plate is used to protect the underlying film layer to improve the strength of the display panel.

[0088] In some alternative embodiments, refer to Figure 2 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 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 encapsulation portion 50. One of the first electrode 711 and the second electrode 721 can serve as an anode, and the other can serve as a cathode to drive the light-emitting unit 41 to emit light. In this embodiment, the first electrode 711 is used as the anode of the display panel, and the second electrode 721 is used as the cathode of the display panel for illustrative purposes.

[0089] Optionally, the orthographic projection of the first electrode 711 onto the substrate 1 at least partially overlaps with the orthographic projection of the isolation opening 30 onto the substrate 1. By fabricating the light-emitting unit 41 and the second electrode 721 within the isolation opening 30, the light-emitting unit 41 can be driven to emit light through the first electrode 711 and the second electrode 721.

[0090] 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).

[0091] Optional, refer to Figure 4 The first encapsulation portion 51 includes a first main body portion 5121 extending toward the second encapsulation portion 52. The isolation structure 3 located between the first encapsulation portion 51 and the second encapsulation portion 52 includes a first half-region 301 and a second half-region 302 connected to each other. The first half-region 301 is disposed close to the first encapsulation portion 51, and the second half-region 302 is disposed close to the second encapsulation portion 52. The edge of the first main body portion 5121 in the orthographic projection of the substrate 1 is at least partially located within the orthographic projection of the second half-region 302 on the substrate 1.

[0092] Optionally, the boundary line between the first half-region 301 and the second half-region 302 in the isolation structure 3 is... Figure 4 The dashed line M is used to indicate that the isolation structure 3 located between the first packaging part 51 and the second packaging part 52 can be divided into a first half-region 301 and a second half-region 302.

[0093] In these embodiments, the first main body portion 5121 of the first encapsulation portion 51, which is thinner than the second encapsulation portion 52, extends at least partially to the area directly above the second half-region 302 provided near the second encapsulation portion 52, so that the first main body extends beyond the first half-region 301, thereby improving the stability of the first encapsulation portion 51. This can improve the problem that the thinner first encapsulation portion 51 is prone to falling off the isolation structure 3 and causing encapsulation failure, thereby improving the encapsulation effect and reliability of the display panel.

[0094] In some optional embodiments, the first encapsulation portion 51 includes a first segment 511 and a second segment 512. The first segment 511 is located on the side of the light-emitting unit 41 away from the substrate 1 and extends to the sidewall of the isolation structure 3 facing the isolation opening 30. The second segment 512 is located on the side of the isolation structure 3 away from the substrate 1 and includes a first main body portion 5121. The second encapsulation portion 52 includes a third segment 521 and a fourth segment 522. The third segment 521 is located on the side of the light-emitting unit 41 away from the substrate 1 and extends to the sidewall of the isolation structure 3 facing the isolation opening 30. The fourth segment 522 is located on the side of the isolation structure 3 away from the substrate 1. The orthographic projection of the second segment 512 on the substrate 1 and the orthographic projection of the fourth segment 522 on the substrate 1 at least partially overlap.

[0095] In these embodiments, the encapsulation portion 50 covers the sidewall of the isolation structure 3 facing the isolation opening 30 and extends to the side of the isolation structure 3 away from the substrate 1. That is, the encapsulation portion 50 not only covers the isolation opening 30, but also covers a portion of the isolation structure 3 surrounding the isolation opening 30, which can expand the distribution area of ​​the encapsulation portion 50 and improve the encapsulation effect of the encapsulation portion 50. The second segment 512 or the fourth segment 522 extends on the isolation structure 3 towards the adjacent light-emitting unit 41 and at least partially overlaps. The overlapping method can be that the second segment 512 is partially stacked on the side of the fourth segment 522 away from the substrate 1, or the fourth segment 522 is partially stacked on the side of the second segment 512 away from the substrate 1.

[0096] Optional, refer to Figure 4 and Figure 5 The fourth segment 522 is partially stacked on the side of the second segment 512 facing away from the substrate 1. The second segment 512 covers part of the isolation structure 3 to expand the distribution area of ​​the first package portion 51. The fourth segment 522 covers the isolation structure 3 to expand the distribution area of ​​the second package portion 52. Both the second segment 512 and the fourth segment 522 are located on the top surface of the isolation structure 3. The second segment 512 and the fourth segment 522 can be at least partially overlapped on the isolation structure 3, so that the fourth segment 522 can cover part of the second segment 512. On the one hand, this can expand the distribution area of ​​the second package portion 52 and improve the packaging effect of the second package portion 52; on the other hand, the partial coverage of the first package portion 51 by the second package portion 52 can improve the stability of the relative position of the first package portion 51 and the isolation structure 3, and improve the problem of packaging failure caused by damage to the second segment 512.

[0097] Optional, refer to Figure 6 and Figure 7 The second segment 512 is partially stacked on the side of the fourth segment 522 facing away from the substrate 1. The second segment 512 and the fourth segment 522 are at least partially overlapped on the isolation structure 3, so that the second segment 512 can cover part of the fourth segment 522. On the one hand, this can expand the distribution area of ​​the first package portion 51 and improve the packaging effect of the first package portion 51; on the other hand, the partial coverage of the second package portion 52 by the first package portion 51 can improve the stability of the relative position of the second package portion 52 and the isolation structure 3, and improve the problem of packaging failure caused by damage to the fourth segment 522.

[0098] Optional, refer to Figure 2 and Figure 3The film thickness of the second segment 512 is less than the film thickness of the fourth segment 522. Both the second segment 512 and the fourth segment 522 are located on the side of the isolation structure 3 facing away from the substrate 1. Since the film thickness of the first encapsulation portion 51 is less than the film thickness of the second encapsulation portion 52, the film thickness of the second segment 512 is also less than the film thickness of the fourth segment 522. Similarly, the film thickness of the first segment 511 is less than the film thickness of the third segment 521.

[0099] In some alternative embodiments, refer to Figure 4 The first segment 511 includes a first sub-segment 5111 and a second sub-segment 5112 that are connected to each other. The first sub-segment 5111 is located on the side of the light-emitting unit 41 away from the substrate 1, and the second sub-segment 5112 is located on the side of the isolation structure 3 facing the isolation opening 30. The second sub-segment 5112 extends along the side wall of the isolation structure 3 and is connected to the second segment 512. The surface of the first sub-segment 5111 away from the substrate 1 and the surface of the second sub-segment 5112 away from the isolation structure 3 are at least partially spaced apart and form a communication opening 5110.

[0100] In these embodiments, because the film thickness of the first encapsulation portion 51 is relatively thin, the surface of its first segment 5111 facing away from the substrate 1 and the surface of its second segment 5112 facing away from the isolation structure 3 may not overlap. The support effect of the first segment 5111 on the second segment 5112 is weak, thus reducing the stability of the first encapsulation portion 51. However, by limiting the first main body portion 5121 to extend at least partially above the second half-region 302, the first main body extends beyond the first half-region 301, thereby improving the stability of the first encapsulation portion 51. This addresses the problem of the thinner first encapsulation portion 51 easily detaching from the isolation structure 3, causing encapsulation failure, and ultimately improves the encapsulation effect and reliability of the display panel.

[0101] In some alternative embodiments, refer to Figure 4 The third segment 521 includes a third sub-segment 5211 and a fourth sub-segment 5212 that are connected to each other. The third sub-segment 5211 is located on the side of the light-emitting unit 41 away from the substrate 1, and the fourth sub-segment 5212 is located on the side of the isolation structure 3 facing the isolation opening 30. The fourth sub-segment 5212 extends along the side wall of the isolation structure 3 and is connected to the fourth segment 522. The surface of the third sub-segment 5211 away from the substrate 1 and the surface of the fourth sub-segment 5212 away from the isolation structure 3 are at least partially connected to each other to enclose and form a gap space 5210.

[0102] In these embodiments, by setting the surface of the third segment 5211 facing away from the substrate 1 and the surface of the fourth segment 5212 facing away from the isolation structure 3 to be at least partially connected, and by forming a gap space 5210 with the third segment 5211 and the fourth segment 5212, the third segment 5211 can provide better support for the fourth segment 5212, making it less likely for the second encapsulation part 52 to detach from the isolation structure 3, thereby improving the encapsulation effect of the first encapsulation layer 5 on the display panel.

[0103] In some optional embodiments, the fourth segment 522 includes a second main body portion 5221 that extends toward the first main body portion 5121. Optionally, the side of the first main body portion 5121 facing the substrate 1 may be flush with the side of the second main body portion 5221 facing the substrate 1, that is, the first main body portion 5121 and the second main body portion 5221 do not overlap, but overlap with the other through other portions of the fourth segment 522 or the second segment 512.

[0104] Optionally, the film thickness of the first main body portion 5121 is less than the film thickness of the second main body portion 5221. The overall film thickness of the first encapsulation portion 51 is less than the overall film thickness of the second encapsulation portion 52. That is, among the corresponding portions of the first encapsulation portion 51 and the second encapsulation portion 52, the portion located in the first encapsulation portion 51 has a smaller film thickness than the portion located in the second encapsulation portion 52.

[0105] Optionally, the first main body portion 5121 and the second main body portion 5221 are spaced apart on the substrate 1 by their orthogonal projections. The first encapsulation portion 51 and the second encapsulation portion 52 are prepared in a sequential order; the first encapsulation portion 51 can be prepared first, followed by the second encapsulation portion 52. In this case, the fourth segment 522 is stacked on the side of the second segment 512 facing away from the substrate 1, such as... Figure 3 and Figure 4 As shown. Alternatively, the second encapsulation portion 52 can be fabricated first, followed by the first encapsulation portion 51. In this case, the second segment 512 is stacked on the side of the fourth segment 522 facing away from the substrate 1, as shown. Figure 2 and Figure 6 As shown. Before fabricating the corresponding encapsulation portion 50, corresponding light-emitting material and electrode material are formed on the substrate 1. The gap between the first main body portion 5121 and the second main body portion 5221 can be formed by the filling and covering of the light-emitting material and electrode material.

[0106] In some alternative embodiments, refer to Figure 6The second segment 512 also includes a first sidewall 5122 and a first overlapping portion 5123. The first sidewall 5122 is connected between the first overlapping portion 5123 and the first main body portion 5121. The first overlapping portion 5123 is located on the side of the second main body portion 5221 away from the substrate 1. The orthographic projection of the first overlapping portion 5123 on the substrate 1 at least partially overlaps with the orthographic projection of the second main body portion 5221 on the substrate 1.

[0107] In these embodiments, the second segment 512 is partially stacked on the side of the fourth segment 522 facing away from the substrate 1. A first sidewall 5122 and a first overlapping portion 5123 are also provided on the first main body portion 5121 of the second segment 512. The first sidewall 5122 extends towards the side facing away from the substrate 1, allowing the first overlapping portion 5123 to be located on the side of the second main body portion 5221 facing away from the substrate 1. Furthermore, during the subsequent fabrication of the second encapsulation layer 6 of the organic material, the second encapsulation layer 6 can contact the first main body portion 5121, the first sidewall 5122, and the first overlapping portion 5123, further increasing the contact area between the second encapsulation layer 6 and the second segment 512. This increases the adhesion between the second encapsulation layer 6 and the second segment 512, improving the problem of film peeling and blistering that easily occurs in high-temperature and high-humidity environments.

[0108] Furthermore, the orthographic projection of the first overlapping portion 5123 on the substrate 1 at least partially overlaps with the orthographic projection of the second main body portion 5221 of the fourth segment 522 of the second encapsulation portion 52 corresponding to the adjacent light-emitting unit 41 on the substrate 1. On the one hand, this can further increase the contact area between the second segment 512 and the second encapsulation layer 6. On the other hand, the first overlapping portion 5123 and the adjacent fourth segment 522 form a slit in the thickness direction. When the second electrode layer 72 and the light-emitting layer 4 are subsequently etched by the etching solution on the part of the isolation structure 3 away from the substrate 1, the travel path of the etching solution is extended, which can reduce the etching solution on the part of the second electrode layer 72 and the light-emitting layer 4 on the part of the isolation structure 3 away from the substrate 1, thereby reducing the contact area between the second encapsulation layer 6 and the isolation structure 3 and reducing the possibility of the second encapsulation layer 6 falling off the surface of the isolation structure 3.

[0109] Optionally, the film thickness of the first overlapping portion 5123 is less than the film thickness of the second main body portion 5221. The film thickness of the first overlapping portion 5123 can be the same as the film thickness of the first main body portion 5121.

[0110] In some alternative embodiments, refer to Figure 4The fourth segment 522 also includes a second sidewall 5222 and a second overlapping portion 5223. The second sidewall 5222 is connected between the second overlapping portion 5223 and the second main body portion 5221. The second overlapping portion 5223 is located on the side of the first main body portion 5121 away from the substrate 1. The orthographic projection of the second overlapping portion 5223 on the substrate 1 at least partially overlaps with the orthographic projection of the first main body portion 5121 on the substrate 1.

[0111] In these embodiments, the fourth segment 522 is partially stacked on the side of the second segment 512 facing away from the substrate 1. A second sidewall 5222 and a second overlapping portion 5223 are also provided on the second main body portion 5221 of the fourth segment 522. The second sidewall 5222 extends towards the side facing away from the substrate 1, allowing the second overlapping portion 5223 to be located on the side of the first main body portion 5121 facing away from the substrate 1. Furthermore, during the subsequent fabrication of the second encapsulation layer 6 of the organic material, the second encapsulation layer 6 can contact the second main body portion 5221, the second sidewall 5222, and the second overlapping portion 5223, further increasing the contact area between the second encapsulation layer 6 and the fourth segment 522. This increases the adhesion between the second encapsulation layer 6 and the fourth segment 522, improving the problem of film peeling and blistering that easily occurs in high-temperature and high-humidity environments.

[0112] Furthermore, the orthographic projection of the second overlapping portion 5223 on the substrate 1 at least partially overlaps with the orthographic projection of the first main body portion 5121 of the second segment 512 of the first encapsulation portion 51 corresponding to the adjacent light-emitting unit 41 on the substrate 1. On the one hand, this can further increase the contact area between the fourth segment 522 and the second encapsulation layer 6. On the other hand, the second overlapping portion 5223 and the adjacent second segment 512 form a slit in the thickness direction. When the second electrode layer 72 and the light-emitting layer 4 are subsequently etched by the etching solution on the part of the isolation structure 3 away from the substrate 1, the travel path of the etching solution is extended, which can reduce the etching of the part of the second electrode layer 72 and the light-emitting layer 4 on the part of the isolation structure 3 away from the substrate 1, thereby reducing the contact area between the second encapsulation layer 6 and the isolation structure 3 and reducing the possibility of the second encapsulation layer 6 falling off the surface of the isolation structure 3.

[0113] Optionally, the film thickness of the second overlapping portion 5223 is greater than the film thickness of the first main body portion 5121. The film thickness of the second overlapping portion 5223 can be the same as the thickness of the second main body portion 5221.

[0114] In some optional embodiments, the display panel further includes a pixel definition layer 2, which is located on one side of the substrate 1 and encloses a plurality of pixel openings 21. The pixel openings 21 communicate with the isolation openings 30, and the light-emitting unit 41 is at least partially located within the pixel openings 21. Optionally, the isolation structure 3 may be disposed on the side of the pixel definition layer 2 facing away from the substrate 1, or the pixel definition layer 2 may have a clearance opening, and the isolation structure 3 may be located within the clearance opening. This application embodiment illustrates the example of the isolation structure 3 being located on the pixel definition layer 2.

[0115] Optionally, the first electrode layer 71 is disposed between the pixel definition layer 2 and the substrate 1. A portion of the first electrode 711 is exposed from the pixel opening 21 to contact at least a portion of the light-emitting unit 41, so that the light-emitting unit 41 can be connected to the first electrode 711 through the pixel opening 21, so that the first electrode 711 can drive the light-emitting unit 41 to emit light for display.

[0116] Optionally, the material of the isolation structure 3 includes a conductive material, and the second electrode 721 is electrically 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 full-surface electrode, ensuring the normal light emission of the light-emitting unit 41.

[0117] In these optional embodiments, the first electrode 711 and the isolation structure 3 can be insulated from each other by the pixel definition layer 2, so that the second electrode 721 is less likely to be short-circuited to the first electrode 711 through the isolation structure 3, thereby improving the working stability of the display panel.

[0118] In some optional embodiments, the isolation structure 3 includes a first isolation portion 31 and a second isolation portion 32 located on the side of the first isolation portion 31 away from the substrate 1, the second isolation portion 32 being disposed protruding from the first isolation portion 31 toward the isolation opening 30.

[0119] Optionally, the material of the first isolation portion 31 may include a conductive material, and the second electrode 721 may be connected to the first isolation portion 31, so that the second electrodes 721 of adjacent sub-pixels can be electrically connected through the first isolation portion 31.

[0120] In these embodiments, by making the second isolation portion 32 protrude from the first isolation portion 31 toward the isolation opening 30, the second isolation portion 32 can block at least part of the material used to prepare the light-emitting layer 4 and the second electrode layer 72 when the light-emitting layer 4 and the second electrode layer 72 of the display panel are deposited, thereby isolating the light-emitting layer 4 and the second electrode layer 72 between adjacent sub-pixels. This facilitates the formation of multiple spaced light-emitting units 41 located within the isolation opening 30 and multiple spaced second electrodes 721 located within the isolation opening 30. As a result, it is not necessary to set a high-precision mask when depositing the light-emitting layer 4 and the second electrode layer 72 of the display panel. For example, it is not necessary to set a high-precision fine metal mask (FMM) when depositing the light-emitting layer 4 and the second electrode layer 72, thereby reducing the manufacturing cost of the display panel.

[0121] In some alternative embodiments, refer to Figure 7 The isolation structure 3 also includes a third isolation portion 33 located on the side of the first isolation portion 31 facing the substrate 1. The third isolation portion 33 protrudes from the first isolation portion 31 toward the isolation opening 30. Optionally, the material of the third isolation portion 33 may include a conductive material. The second electrode 721 can be connected to the third isolation portion 33, so that the second electrodes 721 of adjacent sub-pixels can be electrically connected through the third isolation portion 33. By setting the third isolation portion 33 to protrude from the first isolation portion 31 toward the isolation opening 30, the third isolation portion 33 can have a larger size to facilitate connection with the second electrode 721.

[0122] Optionally, the second isolation part 32 is made of titanium (Ti) or molybdenum (Mo), the first isolation part 31 is made of aluminum (Al), silver (Ag) or copper (Cu), and the third isolation part 33 is made of titanium (Ti) or molybdenum (Mo). For example, the isolation structure 3 is a Ti / Al / Ti (titanium / aluminum / titanium) or Ti / Al / Mo (titanium / aluminum / molybdenum) three-layer metal composite material.

[0123] Combined with reference Figures 4 to 7 In some optional embodiments, the first isolation portion 31 has a first orthographic projection on the substrate 1, and the orthographic projection of the first main body portion 5121 on the substrate 1 has a first boundary 311, which is located within the first orthographic projection. The orthographic projection of the first isolation portion 31 on the substrate 1 forms the first orthographic projection, and the first boundary 311 being located within the first orthographic projection allows both the first main body portion 5121 and the second main body portion 5221 to extend a certain distance, thereby improving the packaging reliability of the packaging portion 50.

[0124] Optionally, along the direction from the isolation opening 30 to the adjacent isolation opening 30, the first orthographic projection includes a second boundary 312 and a third boundary 313. The second boundary 312 is located near the first encapsulation portion 51, and the third boundary 313 is located near the second encapsulation portion 52. The distance between the first boundary 311 and the second boundary 312 is greater than the distance between the first boundary 311 and the third boundary 313. This makes the first main body portion 5121 extend to a longer length, resulting in better stability of the first encapsulation portion 51. This improves the problem of the thinner first encapsulation portion 51 easily detaching from the isolation structure 3, causing encapsulation failure, thereby improving the encapsulation effect and reliability of the display panel.

[0125] The distance between the first boundary 311 and the second boundary 312 is greater than the distance between the first boundary 311 and the third boundary 313. This can also be understood as the first boundary 311 being located within the orthographic projection of the second half-region 302 onto the substrate 1. Simultaneously, the first boundary 311 is located within the first orthographic projection.

[0126] Optionally, the first boundary 311, the second boundary 312, and the third boundary 313 are parallel to each other. The isolation structure 3 and the isolation opening 30 are regularly shaped when projected onto the substrate 1. Optionally, the isolation opening 30 is rectangular when projected onto the substrate 1.

[0127] Optionally, the distance between the second boundary 312 and the third boundary 313 is A, and the distance between the first boundary 311 and the third boundary 313 is b, where b < 0.5A. By limiting b < 0.5A, the extension of the first main body portion 5121 can exceed half the width of the second isolation portion 32, resulting in better stability of the first encapsulation portion 51. This improves the problem of the thinner first encapsulation portion 51 easily detaching from the isolation structure 3 and causing encapsulation failure, thereby improving the encapsulation effect and reliability of the display panel.

[0128] Optionally, the second segment 512 and the isolation structure 3 are spaced apart along the thickness direction of the display panel and a first gap Q1 is formed. During the preparation of the first encapsulation part 51, a first light-emitting material layer is covered under the first encapsulation material layer, and this part of the first light-emitting material layer is subsequently etched away to form the first gap Q1.

[0129] Optionally, the fourth segment 522 and the isolation structure 3 are spaced apart along the thickness direction of the display panel and a second gap Q2 is formed, that is, the second gap Q2 is formed when the second light-emitting material layer between the fourth segment 522 and the isolation structure 3 is removed.

[0130] Optionally, the second segment 512 and the fourth segment 522 are spaced apart along the thickness direction of the display panel and form a third gap Q3. During the fabrication of the next encapsulation portion 50, a light-emitting material layer is covered under the next encapsulation material layer, and this portion of the light-emitting material layer is subsequently etched away to form the third gap Q3.

[0131] In some optional embodiments, the light-emitting layer 4 further includes redundant units located on the side of the isolation structure 3 facing away from the substrate 1; at least some of the redundant units are located within a first gap Q1, and / or, at least some of the redundant units are located within a second gap Q2, and / or, at least some of the redundant units are located within a third gap Q3. The redundant units may be the light-emitting material layer and the second electrode 721 material layer that have not been etched away.

[0132] In some alternative embodiments, refer to Figure 9 At least one encapsulation portion 50 forms a gap with its adjacent encapsulation portion 50 and the isolation structure 3, and the second encapsulation layer 6 fills at least part of the gap. The gap may include at least one of a first gap Q1, a second gap Q2 and a third gap Q3, that is, the second encapsulation layer 6 fills at least one of the first gap Q1, the second gap Q2 and the third gap Q3.

[0133] Optionally, the second encapsulation layer 6 described above at least partially fills the first gap Q1; and / or: the second encapsulation layer 6 at least partially fills the second gap Q2; and / or: the second encapsulation layer 6 at least partially fills the third gap Q3, such that the second encapsulation layer 6 can provide support to the second segment 512 or the fourth segment 522.

[0134] In some alternative embodiments, refer to Figure 4 and Figure 6 The second encapsulation portion 52 includes a second main body portion 5221 extending toward the first encapsulation portion 51. The isolation structure 3 located between the first encapsulation portion 51 and the second encapsulation portion 52 includes a first half-region 301 and a second half-region 302 connected to each other. The first half-region 301 is disposed close to the first encapsulation portion 51, and the second half-region 302 is disposed close to the second encapsulation portion 52. The edge of the second main body portion 5221 in the orthographic projection of the substrate 1 is located outside the orthographic projection of the first half-region 301 on the substrate 1.

[0135] In these embodiments, by setting the edge of the second main body portion 5221 in the orthographic projection of the substrate 1 outside the orthographic projection of the first half-region 301 in the substrate 1, the first main body portion 5121 of the subsequently manufactured first encapsulation portion 51 can have sufficient space to extend beyond the first half-region 301, so that the first main body portion 5121 of the thinner first encapsulation portion 51 at least partially extends to directly above the second half-region 302, thereby improving the stability of the first encapsulation portion 51. This can improve the problem that the thinner first encapsulation portion 51 is prone to falling off the isolation structure 3 and causing encapsulation failure, thereby improving the encapsulation effect and reliability of the display panel.

[0136] Combined with reference Figures 1 to 9 The first aspect of this application also provides a display panel, including a substrate 1, an isolation structure 3, a light-emitting layer 4, and a first encapsulation layer 5. The isolation structure 3 is located on one side of the substrate 1, and the isolation structure 3 encloses a plurality of isolation openings 30. The isolation structure 3 includes a first isolation portion 31 and a second isolation portion 32 located on the side of the first isolation portion 31 away from the substrate 1. The second isolation portion 32 protrudes from the first isolation portion 31 toward the isolation openings 30. The light-emitting layer 4 includes a plurality of spaced-apart light-emitting units 41, and the light-emitting units 41 are at least partially located in the isolation openings 30. The first encapsulation layer 5 includes a plurality of encapsulation portions 50 for encapsulating each light-emitting unit 41. The plurality of encapsulation portions 50 include adjacent first encapsulation portions 51 and second encapsulation portions 52. The first encapsulation portion 51 extends to the side of the isolation structure 3 away from the substrate 1, and the second encapsulation portion 52 extends to the side of the isolation structure 3 away from the substrate 1. The orthographic projection of the first encapsulation portion 51 on the substrate 1 at least partially overlaps with the orthographic projection of the second encapsulation portion 52 on the substrate 1; wherein, the film thickness of the first encapsulation portion 51 is less than the film thickness of the second encapsulation portion 52, the first encapsulation portion 51 includes a first main body portion 5121 extending toward the second encapsulation portion 52, and the orthographic projection of the first main body portion 5121 on the substrate 1 has a first boundary 311; along the direction from the isolation opening 30 to the adjacent isolation opening 30, the first isolation portion 31 has a first orthographic projection on the substrate 1, the first orthographic projection includes a second boundary 312 and a third boundary 313, the second boundary 312 is disposed near the first encapsulation portion 51, the third boundary 313 is disposed near the second encapsulation portion 52, the first boundary 311 is located between the second boundary 312 and the third boundary 313, and the distance between the first boundary 311 and the second boundary 312 is greater than the distance between the first boundary 311 and the third boundary 313.

[0137] In a display panel provided in this application embodiment, the display panel includes a substrate 1, an isolation structure 3, a light-emitting layer 4, and a first encapsulation layer 5. At least two encapsulation portions 50 corresponding to adjacent light-emitting units 41 extend towards each other above the isolation structure 3, such that the orthographic projections of the encapsulation portions 50 corresponding to the two adjacent light-emitting units 41 on the substrate 1 at least partially overlap. That is, the orthographic projections of the first encapsulation portion 51 and the second encapsulation portion 52 on the substrate 1 at least partially overlap, resulting in a larger distribution area of ​​the encapsulation portions 50. The overlap of at least some adjacent encapsulation portions 50 expands the distribution area of ​​the encapsulation portions 50 and improves the encapsulation effect. Furthermore, at least one encapsulation portion 50 is covered by other encapsulation portions 50, making the relative position between the covered encapsulation portion 50 and the isolation structure 3 more stable. The covered encapsulation portion 50 is less prone to damage, avoiding encapsulation failure and further improving the reliability and performance of the display panel.

[0138] By setting the film thickness of the first encapsulation portion 51 to be less than that of the second encapsulation portion 52, the thinner material of the first encapsulation portion 51 is more conducive to patterning during the manufacturing process of the display panel, while the thicker material of the second encapsulation portion 52 is less susceptible to damage from subsequent etching processes, thus improving the encapsulation stability of the second encapsulation portion 52. Differentiated manufacturing of different encapsulation portions 50 can combine the advantages of good encapsulation stability and simplified manufacturing processes. By limiting the distance between the first boundary 311 and the second boundary 312 to be greater than the distance between the first boundary 311 and the third boundary 313, the first main body portion 5121 extends to a longer length, resulting in better stability of the first encapsulation portion 51. This improves the problem of the thinner first encapsulation portion 51 easily detaching from the isolation structure 3, causing encapsulation failure, thereby improving the encapsulation effect and reliability of the display panel.

[0139] Optionally, the distance between the second boundary 312 and the third boundary 313 is A, and the distance between the first boundary 311 and the third boundary 313 is b, where b < 0.5A. By limiting b < 0.5A, the extension of the first main body portion 5121 can exceed half the width of the second isolation portion 32, resulting in better stability of the first encapsulation portion 51 and improving the encapsulation effect and reliability of the display panel.

[0140] Optionally, the display panel provided in the first aspect of this application may be the display panel in any of the foregoing embodiments. Therefore, the display panel provided in the embodiments of this application may have the beneficial effects of the display panel in any of the foregoing embodiments, and this application will not elaborate further on it. For example, the substrate 1 may be the substrate 1 in any of the foregoing embodiments. For example, the encapsulation portion 50 may be the encapsulation portion 50 in any of the foregoing embodiments. For example, the display panel may also include the first electrode layer 71 and the second electrode layer 72 in any of the foregoing embodiments. For example, the first electrode 711 and the second electrode 721 may respectively serve as the anode and cathode of the display panel. For example, the isolation structure 3 can be the isolation structure 3 in any of the foregoing embodiments. The isolation structure 3 may include the first isolation portion 31 and the second isolation portion 32 in any of the foregoing 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. The relative positional relationship between the isolation structure 3 and the first electrode 711 may also be the same as the relative positional relationship between the isolation structure 3 and the first electrode 711 in any of the foregoing embodiments. The second electrodes 721 in adjacent isolation openings 30 can also be electrically connected to each other through the isolation structure 3 to form surface electrodes. For example, the display panel may also include the pixel definition layer 2 in any of the foregoing embodiments. The pixel definition layer 2 can be used to achieve insulation between the first electrode 711 and the isolation structure 3.

[0141] An embodiment of the second aspect of this application provides a display device that includes the display panel of any of the above embodiments. Since the display device provided in the second aspect of this application includes the display panel of any of the embodiments of the first aspect, it possesses the beneficial effects of the display panel of any of the embodiments of the first aspect, which will not be elaborated further here.

[0142] The embodiments described above are not exhaustive, nor do they limit the invention to the specific embodiments described. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to effectively utilize this application and its modifications. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized by, The application relates to a light-emitting device, comprising: a substrate; an isolation structure located on one side of the substrate, the isolation structure enclosing a plurality of isolated openings; a light-emitting layer comprising a plurality of spaced light-emitting units, the light-emitting units being at least partially located in the isolated openings; a first encapsulation layer comprising a plurality of encapsulation portions for encapsulating the light-emitting units, the encapsulation portions comprising adjacent first encapsulation portions and second encapsulation portions, the first encapsulation portions extending to the side of the isolation structure facing away from the substrate, the second encapsulation portions extending to the side of the isolation structure facing away from the substrate, and the first encapsulation portions and the second encapsulation portions at least partially overlapping in the projection of the substrate; wherein the film layer thickness of the first encapsulation portions is different from the film layer thickness of the second encapsulation portions.

2. The display panel of claim 1, wherein, The film layer thickness of the first encapsulation portions is less than the film layer thickness of the second encapsulation portions.

3. The display panel of claim 2, wherein, The first encapsulation portions comprise a first main portion extending towards the second encapsulation portions, the isolation structure between the first encapsulation portions and the second encapsulation portions comprises a first half region and a second half region connected to each other, the first half region is located close to the first encapsulation portions, the second half region is located close to the second encapsulation portions, and the edge of the first main portion in the projection of the substrate is at least partially located within the projection of the second half region on the substrate.

4. The display panel of claim 3, wherein, The first encapsulation portions comprise a first segment and a second segment, the first segment is located on the side of the light-emitting units facing away from the substrate and extends to the side wall of the isolation structure facing the isolated openings, the second segment is located on the side of the isolation structure facing away from the substrate, the second segment comprises the first main portion, the second encapsulation portions comprise a third segment and a fourth segment, the third segment is located on the side of the light-emitting units facing away from the substrate and extends to the side wall of the isolation structure facing the isolated openings, the fourth segment is located on the side of the isolation structure facing away from the substrate, and the second segment and the fourth segment at least partially overlap in the projection of the substrate; Preferably, the film layer thickness of the second segment is less than the film layer thickness of the fourth segment; Preferably, the film layer thickness of the first segment is less than the film layer thickness of the third segment; Preferably, the first segment comprises a first sub-segment and a second sub-segment connected to each other, the first sub-segment is located on the side of the light-emitting units facing away from the substrate, the second sub-segment is located on the side of the isolation structure facing the isolated openings, the second sub-segment extends along the side wall of the isolation structure and is connected to the second segment, and the side surface of the first sub-segment facing away from the substrate and the side surface of the second sub-segment facing away from the isolation structure are at least partially spaced and form a communication opening. Preferably, the third segment comprises a third sub-segment and a fourth sub-segment connected to each other, the third sub-segment is located on the side of the light emitting unit away from the substrate, the fourth sub-segment is located on the side of the isolation structure facing the isolation opening, the fourth sub-segment extends along the side wall of the isolation structure and is connected to the fourth segment, and the side surface of the third sub-segment away from the substrate and the side surface of the fourth sub-segment away from the isolation structure are at least partially connected to each other to enclose a gap space.

5. The display panel of claim 4, wherein, The fourth segment comprises a second main body part, and the second main body part extends towards the first main body part; Preferably, the film layer thickness of the first main body part is smaller than the film layer thickness of the second main body part; Preferably, the first main body part is arranged in the projection of the substrate and the projection of the second main body part is arranged in the substrate.

6. The display panel of claim 5, wherein, The second segment further comprises a first side wall and a first overlapping part, the first side wall is connected between the first overlapping part and the first main body part, the first overlapping part is located on the side of the second main body part away from the substrate, and the projection of the first overlapping part on the substrate at least partially overlaps the projection of the second main body part on the substrate; Preferably, the film layer thickness of the first overlapping part is smaller than the film layer thickness of the second main body part.

7. The display panel of claim 5, wherein, The fourth segment further comprises a second side wall and a second overlapping part, the second side wall is connected between the second overlapping part and the second main body part, the second overlapping part is located on the side of the first main body part away from the substrate, and the projection of the second overlapping part on the substrate at least partially overlaps the projection of the first main body part on the substrate; Preferably, the film layer thickness of the second overlapping part is greater than the film layer thickness of the first main body part.

8. The display panel of claim 3, wherein, The isolation structure comprises a first isolation part and a second isolation part located on the side of the first isolation part away from the substrate, and the second isolation part is arranged protruding from the first isolation part towards the isolation opening; Preferably, the isolation structure further comprises a third isolation part located on the side of the first isolation part facing the substrate, and the third isolation part is arranged protruding from the first isolation part towards the isolation opening; Preferably, the first isolation part comprises a conductive material, and / or the third isolation part comprises a conductive material.

9. The display panel of claim 8, wherein, The first isolation part has a first projection on the substrate, and the projection of the first main body part on the substrate has a first boundary, and the first boundary is located within the first projection; Preferably, in the direction of the isolation opening pointing to the adjacent isolation opening, the first projection comprises a second boundary and a third boundary, the second boundary is arranged close to the first packaging part, the third boundary is arranged close to the second packaging part, and the distance between the first boundary and the second boundary is greater than the distance between the first boundary and the third boundary; Preferably, the first boundary, the second boundary and the third boundary are parallel to each other; Preferably, the distance between the second boundary and the third boundary is A, the distance between the first boundary and the third boundary is b, and b < 0.5A.

10. The display panel of claim 4, wherein, A first gap is formed between the second segment and the isolation structure, and / or a second gap is formed between the fourth segment and the isolation structure, and / or a third gap is formed between the second segment and the fourth segment; Preferably, the light-emitting layer further comprises a redundant unit, the redundant unit is located on a side of the isolation structure away from the substrate, at least part of the redundant unit is located in the first gap, and / or at least part of the redundant unit is located in the second gap, and / or at least part of the redundant unit is located in the third gap; Preferably, the display panel further comprises a second encapsulation layer, the second encapsulation layer is arranged on a side of the first encapsulation layer away from the substrate, and the second encapsulation layer at least partially fills the third gap; Preferably, the material of the first encapsulation layer comprises an inorganic material, and / or the material of the second encapsulation layer comprises an organic material.

11. The display panel of any of claims 1-10, wherein, Further comprising: A pixel definition layer is located on a side of the substrate and encloses a plurality of pixel openings, the pixel openings are in communication with the isolation openings, and the light-emitting units are at least partially located in the pixel openings; Preferably, the isolation structure is located on a side of the pixel definition layer away from the substrate, or a relief opening is formed on the pixel definition layer, and the isolation structure is located in the relief opening.

12. The display panel of claim 11, wherein, Further comprising: A first electrode layer is arranged between the pixel definition layer and the substrate, the first electrode layer comprises a first electrode, and the first electrode is electrically connected with the light-emitting unit; A second electrode layer is arranged on a side of the light-emitting layer away from the substrate, the second electrode layer comprises a second electrode, and the second electrode is electrically connected with the light-emitting unit; Preferably, the material of the isolation structure comprises a conductive material, and the second electrode is electrically connected with the isolation structure.

13. The display panel of claim 2, wherein, The second encapsulation part comprises a second main part extending towards the first encapsulation part, the isolation structure between the first encapsulation part and the second encapsulation part comprises a first half region and a second half region connected with each other, the first half region is arranged close to the first encapsulation part, the second half region is arranged close to the second encapsulation part, and the second main part is located outside the first half region in the orthographic projection of the substrate.

14. A display panel, characterized by Comprising: A substrate; An isolation structure is located on a side of the substrate, the isolation structure encloses a plurality of isolation openings, the isolation structure comprises a first isolation part and a second isolation part located on a side of the first isolation part away from the substrate, and the second isolation part is arranged protruding from the first isolation part towards the isolation opening; A light-emitting layer comprises a plurality of light-emitting units arranged at intervals, and the light-emitting units are at least partially located in the isolation openings; The first encapsulation layer comprises a plurality of encapsulation portions for encapsulating the light emitting units, the plurality of encapsulation portions comprises a first encapsulation portion and a second encapsulation portion arranged adjacently, the first encapsulation portion extends to a side of the isolation structure away from the substrate, the second encapsulation portion extends to a side of the isolation structure away from the substrate, and a projection of the first encapsulation portion on the substrate at least partially overlaps with a projection of the second encapsulation portion on the substrate; The film layer thickness of the first encapsulation portion is less than the film layer thickness of the second encapsulation portion, the first encapsulation portion comprises a first main body portion extending towards the second encapsulation portion, and a projection of the first main body portion on the substrate has a first boundary; In a direction from the isolation opening to an adjacent isolation opening, the first isolation portion has a first projection on the substrate, the first projection comprises a second boundary and a third boundary, the second boundary is arranged close to the first encapsulation portion, the third boundary is arranged close to the second encapsulation portion, the first boundary is located between the second boundary and the third boundary, and a distance between the first boundary and the second boundary is greater than a distance between the first boundary and the third boundary.

15. The display panel of claim 14, wherein, The distance between the second boundary and the third boundary is A, the distance between the first boundary and the third boundary is b, and b < 0.5A; Preferably, the first boundary, the second boundary and the third boundary are parallel to each other; Preferably, the isolation structure further comprises a third isolation portion arranged on a side of the first isolation portion away from the substrate, and the third isolation portion is arranged protruding from the first isolation portion towards the isolation opening; Preferably, the first isolation portion comprises a conductive material, and / or the third isolation portion comprises a conductive material.

16. The display panel of claim 15, wherein, The first encapsulation portion comprises a first segment and a second segment, the first segment is located on a side of the light emitting unit away from the substrate and extends to a side wall of the isolation structure towards the isolation opening, the second segment is located on a side of the isolation structure away from the substrate, the second segment comprises the first main body portion, the second encapsulation portion comprises a third segment and a fourth segment, the third segment is located on a side of the light emitting unit away from the substrate and extends to a side wall of the isolation structure towards the isolation opening, the fourth segment is located on a side of the isolation structure away from the substrate, and a projection of the second segment on the substrate at least partially overlaps with a projection of the fourth segment on the substrate; Preferably, the fourth segment comprises a second main body portion, and the second main body portion extends towards the first main body portion; Preferably, a projection of the first main body portion on the substrate is arranged apart from a projection of the second main body portion on the substrate; Preferably, the second segment further comprises a first side wall and a first overlapping portion, the first side wall is connected between the first overlapping portion and the first main body portion, the first overlapping portion is located on a side of the second main body portion away from the substrate, and a projection of the first overlapping portion on the substrate at least partially overlaps with a projection of the second main body portion on the substrate. Preferably, the fourth segment further comprises a second side wall and a second overlap portion, the second side wall is connected between the second overlap portion and the second main body portion, the second overlap portion is located on the side of the first main body portion away from the substrate, and the second overlap portion at least partially overlaps the first main body portion in the projection of the substrate.

17. The display panel of any one of claims 14-16, wherein, Further comprising: a pixel definition layer located on one side of the substrate and enclosing a plurality of pixel openings, the pixel openings being in communication with the isolation openings, and the light emitting unit being at least partially located in the pixel openings; a first electrode layer disposed between the pixel definition layer and the substrate, the first electrode layer comprising a first electrode, the first electrode being electrically connected with the light emitting unit; a second electrode layer disposed on the side of the light emitting layer away from the substrate, the second electrode layer comprising a second electrode, the second electrode being electrically connected with the light emitting unit; Preferably, the isolation structure is located on the side of the pixel definition layer away from the substrate, or a relief opening is provided on the pixel definition layer, and the isolation structure is located in the relief opening. Preferably, the material of the isolation structure comprises a conductive material, and the second electrode is electrically connected with the isolation structure.

18. A display device comprising: The display panel comprises any one of the display panels as claimed in claims 1 to 17.

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