Display panel and electronic equipment

Abstract

The embodiment of the invention provides a display panel and electronic equipment, and relates to the technical field of display, the display panel comprises a substrate, an isolation structure, a plurality of light emitting units, a plurality of packaging units and a barrier layer, the isolation structure is enclosed to form a plurality of isolation openings; the packaging units are located on the sides, away from the substrate, of the corresponding light-emitting units, each packaging unit comprises an edge covering part located on the side, away from the substrate, of the corresponding isolation structure, and a gap is formed between the side, close to the substrate, of each edge covering part and the side, away from the substrate, of the corresponding isolation structure; the barrier layer is located on the side, away from the substrate, of the isolation structure and fills at least part of the gap, and the orthographic projection of the barrier layer on the substrate is located in the orthographic projection of the side, away from the substrate, of the isolation structure on the substrate. According to the invention, the etching liquid of the rear light-emitting unit is not easy to damage the front light-emitting unit, and the barrier layer is not easy to influence the brightness of the light-emitting area of the light-emitting unit, so that the display effect of the display panel can be improved.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) and flat-panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages of high image quality, power saving, thin body and wide application range, becoming the mainstream in display panels. In the preparation process of traditional display panels, the graphicization of luminous pixels is usually achieved through a fine metal mask (FMM). FMM technology is mature and has rich experience in mass production. However, FMM technology also has problems such as limited accuracy, high development cost and long development cycle. The non-fine metal mask technology eliminates the limitations of traditional OLED processes on display screen size, resolution and other screen performance, and has the advantages of high performance, full-domain size and agile delivery. Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN118678742A, CN118785761A, CN115224220A, CN118678729A, CN118660529A, and CN118660589A record relevant contents of the non-fine metal mask technology for reference.

[0003] However, there are still some problems with display panels that need to be solved urgently. Summary of the invention

[0004] In order to overcome the technical problems mentioned in the above technical background, an embodiment of the present application provides a display panel, wherein the display panel includes: substrate; An isolation structure, located on one side of the substrate, the isolation structure encloses a plurality of isolation openings; a plurality of light-emitting units, at least a portion of each of the light-emitting units being located in a corresponding isolation opening; A plurality of packaging units, each packaging unit being located on a side of the corresponding light-emitting unit away from the substrate, each packaging unit comprising a edging portion located on a side of the isolation structure away from the substrate, and a gap being formed between a side of the edging portion close to the substrate and a side of the isolation structure away from the substrate; The barrier layer is located on a side of the isolation structure away from the substrate, the barrier layer fills at least a portion of the gap, and the orthographic projection of the barrier layer on the substrate is located within the orthographic projection of the side of the isolation structure away from the substrate on the substrate.

[0005] In some possible implementations, the isolation structure includes a first isolation portion and a second isolation portion stacked in sequence in a direction away from the substrate, and an orthographic projection of a side of the first isolation portion away from the substrate on the substrate is located within an orthographic projection of the second isolation portion on the substrate; Preferably, the orthographic projection of the barrier layer on the substrate is located within the orthographic projection of the second isolation portion on the substrate; Preferably, the orthographic projection of the barrier layer on the substrate is outside the orthographic projection of the isolation opening on the substrate; Preferably, the material of the barrier layer includes organic material.

[0006] In some possible implementations, a distance between an edge of an orthographic projection of the barrier layer on the substrate and an edge of an orthographic projection of the second isolation portion on the substrate is greater than or equal to 1 μm; Preferably, the distance from the side of the barrier layer away from the substrate to the substrate is greater than the distance from the side of the hemming portion away from the substrate to the substrate; Preferably, at least part of the hemming portion extends into the barrier layer; Preferably, along the thickness direction of the substrate, the thickness of the barrier layer is greater than or equal to 2 μm and less than or equal to 4 μm.

[0007] In some possible implementations, the isolation opening includes a first isolation opening and a second isolation opening, the light-emitting unit includes a first light-emitting unit and a second light-emitting unit, at least a portion of the first light-emitting unit is located in the first isolation opening, and at least a portion of the second light-emitting unit is located in the second isolation opening, the encapsulation unit includes a first encapsulation unit and a second encapsulation unit, the first encapsulation unit is located on a side of the first light-emitting unit away from the substrate, and the second encapsulation unit is located on a side of the second light-emitting unit away from the substrate; Preferably, the barrier layer comprises a first barrier portion, the first barrier portion is located between the first light-emitting unit and the second light-emitting unit, and the first barrier portion fills a portion of the gap corresponding to the edge portion of the first encapsulation unit and fills a portion of the gap corresponding to the edge portion of the second encapsulation unit; Preferably, a distance between an edge of an orthographic projection of the first blocking portion on the substrate and an edge of an orthographic projection of a side of the isolation structure between the first light-emitting unit and the second light-emitting unit away from the substrate on the substrate is greater than or equal to 1 μm; Preferably, the first blocking portion comprises a first blocking sub-portion and a second blocking sub-portion connected to each other, the first blocking sub-portion fills a portion of the gap corresponding to the edge-wrapped portion of the first packaging unit, and the second blocking sub-portion fills a portion of the gap corresponding to the edge-wrapped portion of the second packaging unit; Preferably, a distance from a side of the second blocking sub-portion away from the substrate to the substrate is greater than a distance from a side of the first blocking sub-portion away from the substrate to the substrate.

[0008] In some possible implementations, the isolation opening further includes a third isolation opening, the light-emitting unit further includes a third light-emitting unit, at least a portion of the third light-emitting unit is located in the third isolation opening, and the encapsulation unit further includes a third encapsulation unit, and the third encapsulation unit is located on a side of the third light-emitting unit away from the substrate; Preferably, the barrier layer further comprises a second barrier portion, the second barrier portion is located between the second light emitting unit and the third light emitting unit, and the second barrier portion fills a portion of the gap corresponding to the edge portion of the second encapsulation unit and fills a portion of the gap corresponding to the edge portion of the third encapsulation unit; Preferably, a distance between an edge of an orthographic projection of the second blocking portion on the substrate and an edge of an orthographic projection of a side of the isolation structure between the second light emitting unit and the third light emitting unit away from the substrate on the substrate is greater than or equal to 1 μm; Preferably, the distance from the side of the first blocking portion away from the substrate to the substrate is equal to the distance from the side of the second blocking portion away from the substrate to the substrate; Preferably, the first blocking portion is connected to the second blocking portion; Preferably, the second blocking portion comprises a third blocking sub-portion and a fourth blocking sub-portion connected to each other, the third blocking sub-portion fills a portion of the gap corresponding to the edge-wrapping portion of the second packaging unit, and the fourth blocking sub-portion fills a portion of the gap corresponding to the edge-wrapping portion of the third packaging unit; Preferably, the distance between the side of the fourth blocking sub-portion away from the substrate and the substrate is greater than the distance between the side of the third blocking sub-portion away from the substrate and the substrate; Preferably, the distance from the side of the third blocking sub-portion away from the substrate to the substrate is equal to the distance from the side of the second blocking sub-portion away from the substrate to the substrate; Preferably, the third blocking sub-portion is connected to the second blocking sub-portion; Preferably, the first light emitting unit, the second light emitting unit and the third light emitting unit have different light emitting colors.

[0009] In some possible implementations, the barrier layer further includes a third barrier portion, the third barrier portion is located between the first light-emitting unit and the third light-emitting unit, and the third barrier portion fills a portion of the gap corresponding to the edge portion of the first encapsulation unit and fills a portion of the gap corresponding to the edge portion of the third encapsulation unit; Preferably, a distance between an edge of an orthographic projection of the third blocking portion on the substrate and an edge of an orthographic projection of a side of the isolation structure between the first light-emitting unit and the third light-emitting unit away from the substrate on the substrate is greater than or equal to 1 μm; Preferably, the distance from the side of the second blocking portion away from the substrate to the substrate is equal to the distance from the side of the third blocking portion away from the substrate to the substrate; Preferably, the second blocking portion is connected to the third blocking portion; Preferably, the first blocking portion is connected to the third blocking portion; Preferably, the third blocking portion comprises a fifth blocking sub-portion and a sixth blocking sub-portion connected to each other, the fifth blocking sub-portion fills a portion of the gap corresponding to the edge-binding portion of the third packaging unit, and the sixth blocking sub-portion fills a portion of the gap corresponding to the edge-binding portion of the first packaging unit; Preferably, the distance between the side of the fifth blocking sub-portion away from the substrate and the substrate is greater than the distance between the side of the sixth blocking sub-portion away from the substrate and the substrate; Preferably, the distance from the side of the fifth blocking sub-portion away from the substrate to the substrate is equal to the distance from the side of the fourth blocking sub-portion away from the substrate to the substrate; Preferably, the distance from the side of the sixth blocking sub-portion away from the substrate to the substrate is equal to the distance from the side of the first blocking sub-portion away from the substrate to the substrate; Preferably, the fifth blocking sub-portion is connected to the fourth blocking sub-portion; Preferably, the sixth blocking sub-portion is connected to the first blocking sub-portion; Preferably, the orthographic projection of the barrier layer on the substrate is in a grid shape.

[0010] In some possible implementations, the display panel further includes a pixel defining layer located between the substrate and the isolation structure, the pixel defining layer defines a plurality of pixel openings, and the pixel openings are connected to the isolation openings; Preferably, the blocking layer is located outside a region formed by an extension line of a side wall of the pixel opening.

[0011] In some possible implementations, the display panel further includes a second encapsulation layer located on a side of the encapsulation unit away from the substrate and a third encapsulation layer located on a side of the second encapsulation layer away from the substrate; Preferably, the materials of the encapsulation unit and the third encapsulation layer both include inorganic materials; Preferably, the material of the second encapsulation layer includes organic material.

[0012] In some possible implementations, the light-emitting unit includes a first electrode, a light-emitting functional portion, and a second electrode sequentially stacked along a thickness direction of the substrate, the isolation structure includes a conductive material, and the second electrode is electrically connected to the first isolation portion; Preferably, the isolation structure further comprises a third isolation portion located on a side of the first isolation portion facing the substrate, and the second electrode is electrically connected to the third isolation portion; Preferably, the material of the third isolation portion includes molybdenum or titanium; and / or the material of the first isolation portion includes aluminum, silver or copper.

[0013] In some possible implementations, the present application further provides a display panel, comprising: substrate; An isolation structure, located on one side of the substrate, the isolation structure encloses a plurality of isolation openings; A plurality of light emitting units, at least a portion of each of which is located in the corresponding isolation opening, including a first light emitting unit and a second light emitting unit; A blocking layer is located on a side of the isolation structure away from the substrate, the orthographic projection of the blocking layer on the substrate is located within the orthographic projection of the isolation structure on the substrate away from the substrate, the distance between the edge of the orthographic projection of the blocking layer on the substrate and the edge of the orthographic projection of the isolation structure enclosing the first light-emitting unit on the substrate away from the substrate is a first size, the distance between the edge of the orthographic projection of the blocking layer on the substrate and the edge of the orthographic projection of the isolation structure enclosing the second light-emitting unit on the substrate away from the substrate is a second size, and the first size is the same as the second size.

[0014] In some possible implementations, the display panel further includes a third light-emitting unit, and a distance between an edge of an orthographic projection of the barrier layer on the substrate and an edge of an orthographic projection of a side of the isolation structure enclosing the third light-emitting unit away from the substrate on the substrate is a third size, and the third size is the same as the second size; Preferably, the display panel further includes: A plurality of packaging units, wherein the packaging units are located on a side of the corresponding light-emitting unit away from the substrate, the packaging units include a edging portion located on a side of the isolation structure away from the substrate, a gap is formed between a side of the edging portion close to the substrate and a side of the isolation structure away from the substrate, and the barrier layer fills at least a portion of the gap; Preferably, the first size is greater than or equal to 1 μm.

[0015] In some possible implementations, the present application further provides a method for preparing a display panel, the method comprising: providing a substrate; An isolation structure having an isolation opening is formed on one side of the substrate, a light-emitting unit is formed in the isolation opening and a packaging unit is formed on a side of the light-emitting unit away from the substrate, and a barrier layer is formed on a side of the isolation structure away from the substrate, the packaging unit includes a edging portion located on a side of the isolation structure away from the substrate, a gap is provided between a side of the edging portion close to the substrate and a side of the isolation structure away from the substrate, the barrier layer is located on a side of the isolation structure away from the substrate, the barrier layer fills at least a portion of the gap, and an orthographic projection of the barrier layer on the substrate is located within an orthographic projection of the isolation structure on the substrate away from the substrate.

[0016] In some possible implementations, the steps of forming an isolation structure having an isolation opening on one side of the substrate, forming a light-emitting unit in the isolation opening, forming an encapsulation unit on a side of the light-emitting unit away from the substrate, and forming a barrier layer on a side of the isolation structure away from the substrate include: forming a pixel defining material layer and an isolation material layer in sequence on one side of the substrate; performing patterning on the isolation material layer and the pixel definition material layer in sequence to respectively form an isolation material layer having a first isolation opening and a pixel definition material layer having a first pixel opening, wherein the first pixel opening is connected to the first isolation opening; forming a first light emitting unit in the first isolation opening and forming a first packaging unit located at a side of the first light emitting unit away from the substrate; A first blocking sub-portion is formed on a side of the isolation material layer close to the first light-emitting unit and away from the substrate, wherein the first blocking sub-portion fills a portion of the gap corresponding to the edge portion of the first packaging unit; Preferably, a distance between an edge of an orthographic projection of the first blocking sub-portion on the substrate and an edge of an orthographic projection of a side of the first isolation opening away from the substrate on the substrate is greater than or equal to 1 μm.

[0017] In some possible implementations, after the step of forming a first barrier layer on a side of the isolation material layer close to the first light-emitting unit away from the substrate, the method further includes: performing patterning on the isolation material layer and the pixel defining material layer in sequence to respectively form an isolation material layer having a second isolation opening and a pixel defining material layer having a second pixel opening, wherein the second pixel opening is connected to the second isolation opening; forming a second light emitting unit in the second isolation opening and forming a second packaging unit located at a side of the second light emitting unit away from the substrate; A second blocking sub-portion is formed on a side of the isolation material layer close to the second light-emitting unit away from the substrate, the second blocking sub-portion fills a portion of the gap corresponding to the edge portion of the second encapsulation unit, and the second blocking sub-portion is connected to the first blocking sub-portion located between the first light-emitting unit and the second light-emitting unit; Preferably, a distance between an edge of an orthographic projection of the second blocking sub-portion on the substrate and an edge of an orthographic projection of a side of the second isolation opening away from the substrate on the substrate is greater than or equal to 1 μm.

[0018] In some possible implementations, after the step of forming a second barrier layer on a side of the isolation material layer close to the second light-emitting unit away from the substrate, the method further includes: Sequentially patterning the isolation material layer and the pixel defining material layer to form an isolation structure having a third isolation opening and a pixel defining layer having a third pixel opening, respectively, wherein the third pixel opening is connected to the third isolation opening; forming a third light emitting unit in the third isolation opening and forming a third packaging unit located at a side of the third light emitting unit away from the substrate; A third blocking sub-portion is formed on a side of the isolation material layer close to the third light-emitting unit away from the substrate, the third blocking sub-portion fills a portion of the gap corresponding to the edge portion of the third encapsulation unit, the third blocking sub-portion is connected to the second blocking sub-portion located between the second light-emitting unit and the third light-emitting unit, and the third blocking sub-portion is also connected to the first blocking sub-portion located between the first light-emitting unit and the third light-emitting unit; Preferably, a distance between an edge of an orthographic projection of the third blocking sub-portion on the substrate and an edge of an orthographic projection of a side of the third isolation opening away from the substrate on the substrate is greater than or equal to 1 μm.

[0019] In some possible implementations, the present application further provides an electronic device, which includes the display panel described in the present application, or includes a display panel prepared by the method for preparing the display panel described in the present application.

[0020] Compared with the prior art, this application has the following beneficial effects: A display panel and an electronic device provided in the present application can prevent the etching liquid of the rear light-emitting unit from easily damaging the front light-emitting unit by setting a barrier layer filling at least part of the gap on the side of the isolation structure away from the substrate. The barrier layer is also not likely to affect the brightness of the light-emitting area of ​​the light-emitting unit, thereby improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 One of the partial top view schematic diagrams of the display panel provided in the embodiment of the present application; Figure 2 Provided in the embodiments of this application Figure 1 One of the cross-sectional views at AA in the middle; Figure 3 Provided in the embodiments of this application Figure 1 The second cross-sectional view at AA in the middle; Figure 4 A second partial top view schematic diagram of a display panel provided in an embodiment of the present application; Figure 5 Provided in the embodiments of this application Figure 4 A schematic cross-sectional view of the middle BB; Figure 6a Provided in the embodiments of this application Figure 4 One of the cross-sectional views at CC in the middle; Figure 6b Provided in the embodiments of this application Figure 4 The second cross-sectional view at CC in the middle; Figure 7 Provided in the embodiments of this application Figure 4 The third cross-sectional view of the CC in the middle; Figure 8 A cross-sectional schematic diagram of a display panel provided in an embodiment of the present application including a second encapsulation layer and a third encapsulation layer; Fig. 9A schematic diagram of a process for preparing a display panel provided in an embodiment of the present application; Fig.10 A cross-sectional schematic diagram of sequentially forming a pixel defining material layer and an isolation material layer on one side of a substrate provided in an embodiment of the present application; Fig.11 One of the cross-sectional schematic diagrams after the isolation material layer and the pixel definition material layer are patterned in sequence according to an embodiment of the present application; Fig.12 A cross-sectional schematic diagram of forming a first light-emitting unit in a first isolation opening and forming a first packaging unit located on a side of the first light-emitting unit away from a substrate provided in an embodiment of the present application; Fig.13 A schematic top view of a first blocking sub-portion formed on a side of an isolation material layer close to a first light-emitting unit away from a substrate provided in an embodiment of the present application; Fig.14 Provided in the embodiments of this application Fig.13 Schematic cross-sectional view at DD in the middle; Fig.15 The second cross-sectional intention of sequentially patterning the isolation material layer and the pixel definition material layer provided in the embodiment of the present application; Fig.16 A cross-sectional view of forming a second light-emitting unit in a second isolation opening and forming a second packaging unit located on a side of the second light-emitting unit away from the substrate provided in an embodiment of the present application; Fig.17 A schematic top view of a second blocking sub-portion formed on a side of the isolation material layer close to the second light-emitting unit away from the substrate provided in an embodiment of the present application; Fig.18 Provided in the embodiments of this application Fig.17 A schematic cross-sectional view at EE in the middle; Fig.19 The third cross-sectional view after the isolation material layer and the pixel definition material layer are patterned in sequence according to the embodiment of the present application; Fig. 20 A cross-sectional view of forming a third light-emitting unit in a third isolation opening and forming a third packaging unit located on a side of the third light-emitting unit away from the substrate provided in an embodiment of the present application; Fig.21 A schematic top view of a third blocking sub-portion formed on a side of the isolation material layer close to the third light-emitting unit away from the substrate provided in an embodiment of the present application; Fig. 22 Provided in the embodiments of this application Fig.21 Schematic cross-sectional view at FF in the middle.

[0023] Reference numerals: 1, substrate; 2, pixel defining layer; 201, pixel opening; 211, first pixel opening; 212, second pixel opening; 213, third pixel opening; 3, isolation structure; 31, first isolation portion; 32, second isolation portion; 33, third isolation portion; 4, blocking layer; 401, first blocking sub-portion; 402, second blocking sub-portion; 403, third blocking sub-portion; 41, first blocking portion; 42, second blocking portion; 43, third blocking portion; 5, first electrode; 6, light-emitting functional portion; 7, second electrode; 8, light-emitting unit; 9. Packaging unit; 901. Edge wrapping portion; 91. First packaging unit; 92. Second packaging unit; 93. Third packaging unit; 10. Gap; 11. Isolation opening; 111. First isolation opening; 112. Second isolation opening; 113. Third isolation opening; 12. Second packaging layer; 13. Third packaging layer; 14. Pixel defining material layer; 15. Isolation material layer; 16. First blocking sub-portion; 17. Second blocking sub-portion; 18. Third blocking sub-portion; 19. Fourth blocking sub-portion; 20. Fifth blocking sub-portion; 21. Sixth blocking sub-portion. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invention product is usually placed when in use, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] It should be noted that, in the absence of conflict, different features in the embodiments of the present application may be combined with each other.

[0029] Improving the density of light-emitting units in a display panel (i.e., pixel density) is an important way to improve display effects. However, the display panels currently made using fine metal evaporation mask (FMM) technology cannot further increase the density of light-emitting units due to technical limitations. In order to solve the technical problem that the density of light-emitting units cannot be further increased, an isolation structure is set in some display panels. When the light-emitting functional layer and the second electrode are evaporated in the entire layer, the light-emitting functional layer and the second electrode can be disconnected at the isolation structure. Through multiple evaporation and multiple etching processes (i.e., light-emitting unit patterning), light-emitting units of different colors can be formed in different isolation openings.

[0030] The display panel in the related technology includes a substrate, an isolation structure located on one side of the substrate, a light-emitting unit located in an isolation opening formed by the isolation structure, and a packaging unit located on a side of the light-emitting unit away from the substrate. The packaging unit extends from a side of the isolation structure toward the isolation opening to a side of the isolation structure away from the substrate. The packaging unit can encapsulate the light-emitting unit.

[0031] However, there is a gap between the packaging unit located on the side of the isolation structure away from the substrate and the isolation structure. In the process of forming the rear light-emitting unit, the relevant drug liquid can easily enter the front light-emitting unit through the gap corresponding to the front light-emitting unit, and eventually damage the front light-emitting unit, thereby forming a dark spot on the display panel, and finally affecting the display effect of the display panel.

[0032] In order to solve the above-mentioned technical problems, the specific implementation scheme of the present application will be described in detail below with reference to the accompanying drawings.

[0033] See also Figure 1 and Figure 2 This embodiment provides a display panel, which includes a substrate 1, an isolation structure 3, a plurality of light-emitting units 8, a plurality of packaging units 9 and a barrier layer 4.

[0034] The substrate 1 may include a substrate and a plurality of drive units located on one side of the substrate, and each drive unit may include one or more semiconductor switch devices. The semiconductor switch device may be formed by the cooperation of a plurality of film layers in the substrate 1, for example, the semiconductor switch device may be a thin film transistor formed by the cooperation of a plurality of film layers.

[0035] The isolation structure 3 is located on one side of the substrate 1 , and the isolation structure 3 encloses a plurality of isolation openings 11 ; at least a portion of the light emitting unit 8 is located in a corresponding isolation opening 11 .

[0036] The packaging unit 9 is located on the side of the corresponding light-emitting unit 8 away from the substrate 1 . The packaging unit 9 includes a edging portion 901 located on the side of the isolation structure 3 away from the substrate 1 . A gap 10 is provided between the side of the edging portion 901 close to the substrate 1 and the side of the isolation structure 3 away from the substrate 1 .

[0037] The barrier layer 4 is located on the side of the isolation structure 3 away from the substrate 1 , and fills at least a portion of the gap 10 . The orthographic projection of the barrier layer 4 on the substrate 1 is located within the orthographic projection of the side of the isolation structure 3 away from the substrate 1 on the substrate 1 .

[0038] After patterning the light-emitting unit 8 and the packaging unit 9, a gap 10 will naturally be formed between the edge portion 901 of the packaging unit 9 and the side of the isolation structure 3 away from the substrate 1. In this embodiment, at least part of the gap 10 is filled with the barrier layer 4. In the process of forming the rear light-emitting unit 8, the etching liquid of the patterned rear light-emitting unit 8 (the light-emitting unit formed later is the rear light-emitting unit) is not easy to pass through the gap 10 into the corresponding front light-emitting unit 8 (the light-emitting unit formed earlier is the front light-emitting unit), so that the front light-emitting unit 8 is not easy to be damaged, and the light-emitting unit 8 is not easy to form dark spots, which can ultimately improve the display effect of the display panel.

[0039] In addition, the orthographic projection of the blocking layer 4 in the present embodiment on the substrate 1 is located within the orthographic projection of the side of the isolation structure 3 away from the substrate 1 on the substrate 1, that is, the blocking layer 4 will not extend to the side of the light-emitting unit 8 away from the substrate 1. Therefore, the blocking layer 4 is not easy to affect the brightness of the light-emitting area of ​​the light-emitting unit 8, so that it is not easy to cause the display panel to have uneven display problems, thereby further improving the display effect of the display panel.

[0040] Based on the above design, this embodiment arranges a barrier layer 4 filling at least part of the gap 10 on the side of the isolation structure 3 away from the substrate 1, so that the etching liquid of the rear light-emitting unit 8 is not easy to damage the front light-emitting unit 8, and the barrier layer 4 is not easy to affect the brightness of the light-emitting area of ​​the light-emitting unit 8, thereby improving the display effect of the display panel.

[0041] For some possible implementations, see again Figure 2 The display panel also includes a pixel defining layer 2 located between the substrate 1 and the isolation structure 3, the pixel defining layer 2 defines a plurality of pixel openings 201, and the pixel openings 201 are connected to the isolation openings 11; the light-emitting unit 8 includes a first electrode 5, a light-emitting functional portion 6, and a second electrode 7 stacked in sequence along the thickness direction Z of the substrate 1, and the pixel opening 201 exposes a portion of the first electrode 5.

[0042] The setting of the isolation structure 3 enables the display panel to form film layers of light-emitting units 8 of different colors in different isolation openings 11 without the need for a fine mask. When forming a light-emitting material layer, the light-emitting material layer will be separated by the isolation structure 3 to form a plurality of light-emitting functional parts 6 arranged at intervals. When forming a second electrode material layer, the second electrode material layer will be separated by the isolation structure 3 to form a plurality of second electrodes 7 arranged at intervals. The isolation structure 3 includes a conductive material. The second electrode 7 is electrically connected to the isolation structure 3. A first electrode 5, a light-emitting functional part 6 and a second electrode 7 form a light-emitting unit 8. Among them, the first electrode 5 can be an anode, and the second electrode 7 can be a cathode.

[0043] In this way, different light-emitting units 8 can be made independent of each other, thereby improving the crosstalk between adjacent light-emitting units 8 and improving the display effect of the display panel. At the same time, due to the presence of the isolation structure 3, the light-emitting material layer and the second electrode material layer in the light-emitting unit 8 of each color in the display panel can be first prepared on the entire surface and then patterned, thereby eliminating the need for a fine mask, thereby saving the manufacturing cost of the display panel.

[0044] For some possible implementations, see Figure 3 The isolation structure 3 includes a first isolation portion 31 and a second isolation portion 32 which are stacked in sequence along a direction away from the substrate 1. The orthographic projection of the side of the first isolation portion 31 away from the substrate 1 on the substrate 1 is located within the orthographic projection of the second isolation portion 32 on the substrate 1. The isolation structure 3 includes a conductive material, and the second electrode 7 is electrically connected to the first isolation portion 31.

[0045] Since the second isolation portion 32 is located on the side of the first isolation portion 31 away from the substrate 1, and the lateral width of the second isolation portion 32 is greater than the lateral width of the first isolation portion 31 in a plane parallel to the substrate 1, the second isolation portion 32 disconnects the light-emitting material layer and the second electrode material layer at the isolation structure 3. In this way, the isolation structure 3 formed by the first isolation portion 31 and the second isolation portion 32 can make it easier to independently package each light-emitting unit 8, thereby improving the packaging yield of the display panel.

[0046] Preferably, the orthographic projection of the barrier layer 4 on the substrate 1 is located within the orthographic projection of the second isolation portion 32 on the substrate 1 .

[0047] Optionally, the orthographic projection of the barrier layer 4 on the substrate 1 is located outside the orthographic projection of the isolation opening 11 on the substrate 1 .

[0048] Optionally, the material of the barrier layer 4 includes an organic material.

[0049] In this way, the barrier layer 4 is not likely to affect the normal display of the light-emitting unit 8, so that the corresponding light-emitting unit 8 is not likely to produce color deviation, thereby further improving the display effect of the display panel.

[0050] For some possible implementations, see again Figure 3 , the distance D between the edge of the orthographic projection of the barrier layer 4 on the substrate 1 and the edge of the orthographic projection of the second isolation portion 32 on the substrate 1 is greater than or equal to 1 μm. For example, the distance D can be 1 μm, 1.2 μm, 1.5 μm, 1.8 or 2 μm, etc., and a reasonable setting of the distance D can make the barrier layer 4 effectively block the corresponding gap 10, while making it less likely for the barrier layer 4 to affect the light-emitting effect of the light-emitting unit 8.

[0051] Preferably, a distance H1 from a side of the barrier layer 4 away from the substrate 1 to the substrate 1 is greater than a distance H2 from a side of the edge portion 901 away from the substrate 1 to the substrate 1 .

[0052] Optionally, at least a portion of the edging portion 901 extends into the barrier layer 4 .

[0053] In this way, the barrier layer 4 covers part of the edging portion 901, which can make the contact area between the barrier layer 4 and the edging portion 901 larger, so that the barrier layer 4 can be more stably arranged on the side of the isolation structure 3 away from the substrate 1, and then the barrier layer 4 can more effectively seal the corresponding gap 10.

[0054] Preferably, along the thickness direction Z of the substrate 1, the thickness H3 of the barrier layer 4 is greater than or equal to 2 μm and less than or equal to 4 μm. For example, the thickness H3 may be 2 μm, 2.2 μm, 2.5 μm, 3 μm, 3.5 μm, 3.8 μm or 4 μm, etc. The thickness H3 is reasonably set so that the barrier layer 4 can more effectively block the corresponding gap 10 without increasing the thickness of the display panel too much.

[0055] For some possible implementations, see Figure 4 and Figure 5The isolation opening 11 includes a first isolation opening 111 and a second isolation opening 112. The light-emitting unit 8 includes a first light-emitting unit and a second light-emitting unit. At least a portion of the first light-emitting unit is located in the first isolation opening 111, and at least a portion of the second light-emitting unit is located in the second isolation opening 112. The encapsulation unit 9 includes a first encapsulation unit 91 and a second encapsulation unit 92. The first encapsulation unit 91 is located on a side of the first light-emitting unit away from the substrate 1, and the second encapsulation unit 92 is located on a side of the second light-emitting unit away from the substrate 1.

[0056] Preferably, the barrier layer 4 includes a first barrier portion 41, which is located between the first light-emitting unit and the second light-emitting unit, and fills a portion of the gap 10 corresponding to the edging portion 901 of the first encapsulation unit 91 and fills a portion of the gap 10 corresponding to the edging portion 901 of the second encapsulation unit 92.

[0057] The first blocking portion 41 can simultaneously block a portion of the gap 10 corresponding to the edging portion 901 of the first packaging unit 91 and a portion of the gap 10 corresponding to the edging portion 901 of the second packaging unit 92 , thereby improving the blocking effect of the first blocking portion 41 on the gap 10 between the edging portion 901 and the isolation structure 3 .

[0058] Preferably, the distance D1 between the edge of the orthographic projection of the first blocking portion 41 on the substrate 1 and the edge of the orthographic projection of the isolation structure 3 between the first light-emitting unit and the second light-emitting unit on the substrate 1 away from the substrate 1 is greater than or equal to 1 μm. For example, the distance D1 may be 1 μm, 1.2 μm, 1.5 μm, 1.8 or 2 μm, etc., and a reasonable setting of the distance D1 can make the first blocking portion 41 effectively block the corresponding gap 10 while making it less likely for the first blocking portion 41 to affect the light-emitting effect of the light-emitting unit 8.

[0059] For some possible implementations, see Figure 4-Figure 6a The isolation opening 11 further includes a third isolation opening 113, the light-emitting unit 8 further includes a third light-emitting unit, at least part of the third light-emitting unit is located in the third isolation opening 113, and the encapsulation unit 9 further includes a third encapsulation unit 93, which is located on a side of the third light-emitting unit away from the substrate 1.

[0060] Optionally, the barrier layer 4 further includes a second barrier portion 42, which is located between the second light-emitting unit and the third light-emitting unit, and fills a portion of the gap 10 corresponding to the edging portion 901 of the second encapsulation unit 92 and a portion of the gap 10 corresponding to the edging portion 901 of the third encapsulation unit 93.

[0061] The first light-emitting unit, the second light-emitting unit and the third light-emitting unit have different light-emitting colors. For example, the light-emitting color of the first light-emitting unit may be blue, the light-emitting color of the second light-emitting unit may be green, and the light-emitting color of the third light-emitting unit may be red. The second blocking portion 42 may block part of the gap 10 corresponding to the edging portion 901 of the second encapsulation unit 92 and part of the gap 10 corresponding to the edging portion 901 of the third encapsulation unit 93 at the same time, thereby improving the blocking effect of the second blocking portion 42 on the gap 10 between the edging portion 901 and the isolation structure 3.

[0062] Preferably, the distance D2 between the edge of the orthographic projection of the second blocking portion 42 on the substrate 1 and the edge of the orthographic projection of the isolation structure 3 between the second light-emitting unit and the third light-emitting unit on the substrate 1 away from the substrate 1 is greater than or equal to 1 μm. For example, the distance D2 may be 1 μm, 1.2 μm, 1.5 μm, 1.8 or 2 μm, etc., and a reasonable setting of the distance D2 can make the second blocking portion 42 effectively block the corresponding gap 10 while making it less likely for the second blocking portion 42 to affect the light-emitting effect of the light-emitting unit 8.

[0063] For some possible implementations, see again Figure 4-Figure 6a The barrier layer 4 also includes a third barrier portion 43, which is located between the first light-emitting unit and the third light-emitting unit. The third barrier portion 43 fills a portion of the gap 10 corresponding to the edge portion 901 of the first encapsulation unit 91 and fills a portion of the gap 10 corresponding to the edge portion 901 of the third encapsulation unit 93.

[0064] The third blocking portion 43 can simultaneously block the partial gap 10 corresponding to the edging portion 901 of the first packaging unit 91 and the partial gap 10 corresponding to the edging portion 901 of the third packaging unit 93, thereby improving the blocking effect of the third blocking portion 43 on the gap 10 between the edging portion 901 and the isolation structure 3.

[0065] Preferably, a distance D3 between an edge of an orthographic projection of the third blocking portion 43 on the substrate 1 and an edge of an orthographic projection of the isolation structure 3 between the first light-emitting unit and the third light-emitting unit on the substrate 1 away from the substrate 1 is greater than or equal to 1 μm. For example, the distance D3 may be 1 μm, 1.2 μm, 1.5 μm, 1.8 or 2 μm, etc., and a reasonable setting of the distance D3 may enable the third blocking portion 43 to effectively block the corresponding gap 10 while preventing the third blocking portion 43 from easily affecting the light-emitting effect of the light-emitting unit 8.

[0066] Preferably, the first blocking portion 41 is connected to the second blocking portion 42 , the second blocking portion 42 is connected to the third blocking portion 43 , and the first blocking portion 41 is connected to the third blocking portion 43 .

[0067] Optionally, the orthographic projection of the barrier layer 4 on the substrate 1 is in a grid shape.

[0068] In this way, the first barrier portion 41 , the second barrier portion 42 and the third barrier portion 43 are connected as a whole and form a barrier layer 4 , thereby improving the stability of the barrier layer 4 and further improving the blocking effect of the barrier layer 4 on the corresponding gap 10 .

[0069] Preferably, see Figure 6a and Figure 6b The first blocking portion 41 includes a first blocking sub-portion 16 and a second blocking sub-portion 17 connected to each other. The first blocking sub-portion 16 fills a portion of the gap 10 corresponding to the edge portion of the first packaging unit 91, and the second blocking sub-portion 17 fills a portion of the gap 10 corresponding to the edge portion of the second packaging unit 92.

[0070] Optionally, the second blocking portion 42 includes a third blocking sub-portion 18 and a fourth blocking sub-portion 19 connected to each other, the third blocking sub-portion 18 fills a portion of the gap 10 corresponding to the edging portion of the second packaging unit 92 , and the fourth blocking sub-portion 19 fills a portion of the gap 10 corresponding to the edging portion of the third packaging unit 93 .

[0071] Optionally, the third blocking portion 43 includes a fifth blocking sub-portion 20 and a sixth blocking sub-portion 21 connected to each other, the fifth blocking sub-portion 20 fills a portion of the gap 10 corresponding to the edging portion of the third packaging unit 93, and the sixth blocking sub-portion 21 fills a portion of the gap 10 corresponding to the edging portion of the first packaging unit 91.

[0072] Optionally, the distance between the second blocking sub-portion 17 and the substrate 1 , which is away from the substrate 1 , is greater than the distance between the first blocking sub-portion 16 and the substrate 1 , which is away from the substrate 1 .

[0073] Optionally, a distance from a side of the fourth blocking sub-portion 19 away from the substrate 1 to the substrate 1 is greater than a distance from a side of the third blocking sub-portion 18 away from the substrate 1 to the substrate 1 .

[0074] Optionally, the distance between the side of the third blocking sub-portion 18 away from the substrate 1 and the substrate 1 is equal to the distance between the side of the second blocking sub-portion 17 away from the substrate 1 and the substrate 1 .

[0075] Optionally, a distance from a side of the fifth blocking sub-portion 20 away from the substrate 1 to the substrate 1 is greater than a distance from a side of the sixth blocking sub-portion 21 away from the substrate 1 to the substrate 1 .

[0076] Optionally, the distance between the side of the fifth blocking sub-portion 20 away from the substrate 1 and the substrate 1 is equal to the distance between the side of the fourth blocking sub-portion 19 away from the substrate 1 and the substrate 1 .

[0077] Optionally, the distance between the side of the sixth blocking sub-portion 21 away from the substrate 1 and the substrate 1 is equal to the distance between the side of the first blocking sub-portion 16 away from the substrate 1 and the substrate 1 .

[0078] Optionally, the third blocking sub-portion 18 is connected to the second blocking sub-portion 17 .

[0079] Optionally, the fifth blocking sub-portion 20 is connected to the fourth blocking sub-portion 19 .

[0080] Optionally, the sixth blocking sub-portion 21 is connected to the first blocking sub-portion 16 .

[0081] In this embodiment, the first blocking sub-portion 16 and the sixth blocking sub-portion 21 are formed by the same process and surround the circumference of the first light-emitting unit, so the distance from the side of the sixth blocking sub-portion 21 away from the substrate 1 to the substrate 1 is equal to the distance from the side of the first blocking sub-portion 16 away from the substrate 1 to the substrate 1, and the sixth blocking sub-portion 21 is connected to the first blocking sub-portion 16; the second blocking sub-portion 17 and the third blocking sub-portion 18 are formed by the same process and surround the circumference of the second light-emitting unit, so the distance from the side of the second blocking sub-portion 17 away from the substrate 1 to the substrate 1 is equal to the distance from the side of the third blocking sub-portion 18 away from the substrate 1 to the substrate 1, and the second blocking sub-portion 17 is connected to the third blocking sub-portion 18; the fourth blocking sub-portion 19 and the fifth blocking sub-portion 20 are formed by the same process and surround the circumference of the third light-emitting unit, so the distance from the side of the fourth blocking sub-portion 19 away from the substrate 1 to the substrate 1 is equal to the distance from the side of the fifth blocking sub-portion 20 away from the substrate 1 to the substrate 1, and the fourth blocking sub-portion 19 is connected to the fifth blocking sub-portion 20. During the process preparation, the second blocking sub-portion 17 at least partially overlaps with the first blocking sub-portion 16, that is, the orthographic projections of the second blocking sub-portion 17 and the first blocking sub-portion 16 on the substrate 1 at least partially overlap. The orthographic projections of the third blocking sub-portion 18 and the fourth blocking sub-portion 19 on the substrate 1 at least partially overlap; the orthographic projections of the fifth blocking sub-portion 20 and the sixth blocking sub-portion 21 on the substrate 1 at least partially overlap.

[0082] Typically, the second blocking sub-portion 17 is formed after the first blocking sub-portion 16, and therefore, the distance from the side of the second blocking sub-portion 17 away from the substrate 1 to the substrate 1 is greater than the distance from the side of the first blocking sub-portion 16 away from the substrate 1 to the substrate 1; the fourth blocking sub-portion 19 is formed after the third blocking sub-portion 18, and therefore, the distance from the side of the fourth blocking sub-portion 19 away from the substrate 1 to the substrate 1 is greater than the distance from the side of the third blocking sub-portion 18 away from the substrate 1 to the substrate 1; the sixth blocking sub-portion 21 is formed after the first blocking sub-portion 16, and therefore, the distance from the side of the sixth blocking sub-portion 21 away from the substrate 1 to the substrate 1 is greater than the distance from the side of the first blocking sub-portion 16 away from the substrate 1 to the substrate 1.

[0083] For some possible implementations, see Figure 2 and Figure 7 The blocking layer 4 is located outside the area formed by the extension line of the side wall of the pixel opening 201. In this way, the light emitted by the light emitting unit 8 is not easily blocked by the blocking layer 4, so that the light emitting effect of the light emitting unit 8 can be further improved.

[0084] For some possible implementations, see Figure 8 The display panel further includes a second encapsulation layer 12 located on a side of the encapsulation unit 9 away from the substrate 1 and a third encapsulation layer 13 located on a side of the second encapsulation layer 12 away from the substrate 1 .

[0085] Optionally, the materials of the encapsulation unit 9 and the third encapsulation layer 13 both include inorganic materials, and the material of the second encapsulation layer 12 includes organic materials.

[0086] For example, the encapsulation unit 9 and the third encapsulation layer 13 can be formed by chemical vapor deposition (CVD), and the second encapsulation layer 12 can be formed by inkjet printing (IJP). The second encapsulation layer 12 and the third encapsulation layer 13 can provide a better encapsulation effect on the light-emitting unit 8, thereby further improving the encapsulation quality of the display panel.

[0087] Preferably, the distance from the side of the first blocking portion 41 away from the substrate 1 to the substrate 1 is equal to the distance from the side of the second blocking portion 42 away from the substrate 1 to the substrate 1, and the distance from the side of the second blocking portion 42 away from the substrate 1 to the substrate 1 is equal to the distance from the side of the third blocking portion 43 away from the substrate 1 to the substrate 1. In this way, the sides of the first blocking portion 41, the second blocking portion 42 and the third blocking portion 43 away from the substrate 1 are located in the same horizontal plane, so that the flatness of the second encapsulation layer 12 can be improved.

[0088] For some possible implementations, see again Figure 8 The isolation structure 3 further includes a third isolation portion 33 located on a side of the first isolation portion 31 facing the substrate 1 , and the second electrode 7 is electrically connected to the third isolation portion 33 .

[0089] The third isolation portion 33 includes a conductive material, and the second electrode 7 corresponding to the light emitting unit 8 extends to contact the side wall of the third isolation portion 33 to achieve electrical connection between the second electrode 7 corresponding to the light emitting unit 8 and the third isolation portion 33 .

[0090] Specifically, the material of the third isolation portion 33 includes molybdenum or titanium; and / or, the material of the first isolation portion 31 includes aluminum, silver or copper; and / or, the material of the second isolation portion 32 includes titanium or molybdenum. In this way, when the isolation structure 3 separates the second electrode material layer into the second electrode 7, the second electrode 7 is more easily electrically connected to the third isolation portion 33.

[0091] The orthographic projection of the light emitting functional part 6 on the substrate 1 is outside the orthographic projection of the third isolation part 33 on the substrate 1. In this way, the light emitting functional part 6 does not overlap with the isolation structure 3, thereby effectively improving the crosstalk problem between the light emitting units 8.

[0092] For some possible implementations, see again Figure 5 and Figure 6a The present application also provides a display panel, which includes a substrate 1, an isolation structure 3, a plurality of light-emitting units 8 and a barrier layer 4.

[0093] The isolation structure 3 is located on one side of the substrate 1 , and the isolation structure 3 encloses a plurality of isolation openings 11 ; at least a portion of the light emitting unit 8 is located in a corresponding isolation opening 11 .

[0094] At least part of the light emitting unit 8 is located in the corresponding isolation opening 11 , and the light emitting unit 8 includes a first light emitting unit and a second light emitting unit.

[0095] The blocking layer 4 is located on the side of the isolation structure 3 away from the substrate 1, and the orthographic projection of the blocking layer 4 on the substrate 1 is located within the orthographic projection of the side of the isolation structure 3 away from the substrate 1 on the substrate 1, the distance between the edge of the orthographic projection of the blocking layer 4 on the substrate 1 and the edge of the orthographic projection of the side of the isolation structure 3 enclosing the first light-emitting unit on the substrate 1 is a first dimension D1, the distance between the edge of the orthographic projection of the blocking layer 4 on the substrate 1 and the edge of the orthographic projection of the side of the isolation structure 3 enclosing the second light-emitting unit on the substrate 1 is a second dimension D2, and the first dimension D1 is the same as the second dimension D2.

[0096] The orthographic projection of the blocking layer 4 in this embodiment on the substrate 1 is located within the orthographic projection of the side of the isolation structure 3 away from the substrate 1 on the substrate 1, that is, the blocking layer 4 will not extend to the side of the first light-emitting unit and the second light-emitting unit away from the substrate 1. Therefore, the blocking layer 4 is not likely to affect the brightness of the light-emitting areas of the first light-emitting unit and the second light-emitting unit, and thus is not likely to cause the display panel to have uneven display problems.

[0097] Optionally, the display panel also includes a third light-emitting unit, and the distance between the edge of the orthographic projection of the blocking layer 4 on the substrate 1 and the edge of the orthographic projection of the side of the isolation structure 3 enclosing the third light-emitting unit away from the substrate 1 on the substrate 1 is a third dimension D3, and the third dimension D3 is the same as the second dimension D2.

[0098] The barrier layer 4 does not extend to the side of the third light emitting unit away from the substrate 1 , so the barrier layer 4 is not likely to affect the brightness of the light emitting area of ​​the third light emitting unit, thereby not likely to cause the display panel to have a display unevenness problem.

[0099] The remaining technical solutions of the display panel in this embodiment are the same as those of the display panel in the above embodiment, and will not be described again.

[0100] For some possible implementations, see Fig. 9 The present application also provides a method for preparing a display panel, the method comprising: S10: providing a substrate 1.

[0101] S11: An isolation structure 3 having an isolation opening 11 is formed on one side of the substrate 1, a light-emitting unit 8 is formed in the isolation opening 11, and a packaging unit 9 is formed on a side of the light-emitting unit 8 away from the substrate 1, and a barrier layer 4 is formed on a side of the isolation structure 3 away from the substrate 1, the packaging unit 9 includes a edging portion 901 located on a side of the isolation structure 3 away from the substrate 1, a gap 10 is provided between a side of the edging portion 901 close to the substrate 1 and a side of the isolation structure 3 away from the substrate 1, the barrier layer 4 is located on a side of the isolation structure 3 away from the substrate 1, the barrier layer 4 fills at least a portion of the gap 10, and an orthographic projection of the barrier layer 4 on the substrate 1 is located within an orthographic projection of the isolation structure 3 on the substrate 1 away from the substrate 1.

[0102] In the display panel formed by the above method, a barrier layer 4 that can fill at least part of the gap 10 is formed on the side of the isolation structure 3 away from the substrate 1. In the process of forming the rear light-emitting unit 8, the etching liquid or the like of the patterned rear light-emitting unit 8 is not easy to enter the corresponding front light-emitting unit 8 through the gap 10, so that the front light-emitting unit 8 is not easy to be damaged, and the light-emitting unit 8 is not easy to form dark spots, which can ultimately improve the display effect of the display panel.

[0103] In addition, the orthographic projection of the blocking layer 4 in the present embodiment on the substrate 1 is located within the orthographic projection of the side of the isolation structure 3 away from the substrate 1 on the substrate 1, that is, the blocking layer 4 will not extend to the side of the light-emitting unit 8 away from the substrate 1. Therefore, the blocking layer 4 is not likely to affect the brightness of the light-emitting area of ​​the light-emitting unit 8, thereby not easily causing the display panel to have uneven display problems.

[0104] In some possible implementations, the steps of forming an isolation structure 3 having an isolation opening 11 on one side of the substrate 1, forming a light-emitting unit 8 in the isolation opening 11, forming an encapsulation unit 9 on a side of the light-emitting unit 8 away from the substrate 1, and forming a barrier layer 4 on a side of the isolation structure 3 away from the substrate 1 include: See also Fig.10 , a pixel defining material layer 14 and an isolation material layer 15 are sequentially formed on one side of the substrate 1 .

[0105] See also Fig.11The isolation material layer 15 and the pixel defining material layer 14 are patterned in sequence to respectively form an isolation material layer 15 having a first isolation opening 111 and a pixel defining material layer 14 having a first pixel opening 211 , wherein the first pixel opening 211 is connected to the first isolation opening 111 .

[0106] See also Fig.12 A first light emitting unit is formed in the first isolation opening 111 , and a first packaging unit 91 is formed on a side of the first light emitting unit away from the substrate 1 .

[0107] The light-emitting material layer, the second electrode material layer and the packaging material layer of the first light-emitting unit can be formed in sequence in the first isolation opening 111, and then the light-emitting material layer, the second electrode material layer and the packaging material layer located in the first isolation opening 111 are protected by etching the protective layer. Then, the light-emitting material layer, the second electrode material layer and the packaging material layer of the first light-emitting unit are patterned to form the first light-emitting unit and the first packaging unit 91.

[0108] See also Figure 13-14 A first blocking sub-portion 401 is formed on a side of the isolation material layer 15 close to the first light-emitting unit and away from the substrate 1 , and the first blocking sub-portion 401 fills a portion of the gap 10 corresponding to the edge portion 901 of the first encapsulation unit 91 .

[0109] A barrier material layer may be formed on the side of the isolation material layer 15 away from the substrate 1 , and then the barrier material layer may be patterned to ultimately form a first barrier sub-portion 401 , which may fill a portion of the gap 10 corresponding to the edge portion 901 of the first packaging unit 91 .

[0110] Preferably, the distance L1 between the edge of the orthographic projection of the first blocking sub-portion 401 on the substrate 1 and the edge of the orthographic projection of the side of the first isolation opening 111 away from the substrate 1 on the substrate 1 is greater than or equal to 1 μm. For example, the distance L1 may be 1 μm, 1.2 μm, 1.5 μm, 1.8 or 2 μm, etc., and a reasonable setting of the distance L1 can make the first blocking sub-portion 401 effectively block the corresponding gap 10 while making it less likely for the first blocking sub-portion 401 to affect the light-emitting effect of the first light-emitting unit.

[0111] See also Fig.15 , the isolation material layer 15 and the pixel defining material layer 14 are patterned in sequence to respectively form an isolation material layer 15 having a second isolation opening 112 and a pixel defining material layer 14 having a second pixel opening 212 , and the second pixel opening 212 is connected to the second isolation opening 112 .

[0112] See also Fig.16A second light emitting unit is formed in the second isolation opening 112 , and a second packaging unit 92 is formed on a side of the second light emitting unit away from the substrate 1 .

[0113] The light-emitting material layer, the second electrode material layer and the packaging material layer of the second light-emitting unit can be formed in sequence in the second isolation opening 112, and then the light-emitting material layer, the second electrode material layer and the packaging material layer located in the second isolation opening 112 are protected by etching the protective layer. Then, the light-emitting material layer, the second electrode material layer and the packaging material layer of the second light-emitting unit are patterned to form the second light-emitting unit and the second packaging unit 92.

[0114] After the first light-emitting unit is formed, a first blocking sub-portion 401 is formed on the side of the isolation material layer 15 away from the substrate 1 to fill a portion of the gap 10 corresponding to the edging portion 901 of the first packaging unit 91. The first blocking sub-portion 401 can seal the gap 10 corresponding to the first packaging unit 91. Therefore, when the light-emitting material and packaging material of the second light-emitting unit are patterned, the corresponding etching liquid is not easy to invade the first light-emitting unit through the gap 10 corresponding to the first packaging unit 91, and thus is not easy to damage the first light-emitting unit.

[0115] See also Figure 17-Figure 18 A second blocking sub-portion 402 is formed on the side of the isolation material layer 15 close to the second light-emitting unit away from the substrate 1, and the second blocking sub-portion 402 fills a portion of the gap 10 corresponding to the edge portion 901 of the second encapsulation unit 92, and the second blocking sub-portion 402 is connected to the first blocking sub-portion 401 located between the first light-emitting unit and the second light-emitting unit.

[0116] A barrier material layer may be formed on the side of the isolation material layer 15 away from the substrate 1 , and then the barrier material layer may be patterned to ultimately form a second barrier sub-portion 402 , which may fill a portion of the gap 10 corresponding to the edge portion 901 of the second packaging unit 92 .

[0117] Preferably, the distance L2 between the edge of the orthographic projection of the second blocking sub-portion 402 on the substrate 1 and the edge of the orthographic projection of the side of the second isolation opening 112 away from the substrate 1 on the substrate 1 is greater than or equal to 1 μm. For example, the distance L2 may be 1 μm, 1.2 μm, 1.5 μm, 1.8 or 2 μm, etc., and a reasonable setting of the distance L2 can make the second blocking sub-portion 402 effectively block the corresponding gap 10 while making it less likely for the second blocking sub-portion 402 to affect the light-emitting effect of the second light-emitting unit.

[0118] See also Fig.19The isolation material layer 15 and the pixel defining material layer 14 are patterned in sequence to respectively form an isolation structure 3 having a third isolation opening 113 and a pixel defining layer 2 having a third pixel opening 213 , and the third pixel opening 213 is connected to the third isolation opening 113 .

[0119] See also Fig. 20 , a third light emitting unit is formed in the third isolation opening 113 and a third packaging unit 93 is formed on a side of the third light emitting unit away from the substrate 1 .

[0120] The light-emitting material layer, the second electrode material layer and the packaging material layer of the third light-emitting unit can be formed in sequence in the third isolation opening 113, and then the light-emitting material layer, the second electrode material layer and the packaging material layer located in the third isolation opening 113 are protected by etching the protective layer. Then, the light-emitting material layer, the second electrode material layer and the packaging material layer of the third light-emitting unit are patterned to form the third light-emitting unit and the third packaging unit 93.

[0121] After the first light-emitting unit is formed, a first blocking sub-portion 401 filling a portion of the gap 10 corresponding to the first packaging unit 91 is formed on the side of the isolation material layer 15 away from the substrate 1, and after the second light-emitting unit is formed, a second blocking sub-portion 402 filling a portion of the gap 10 corresponding to the second packaging unit 92 is formed on the side of the isolation material layer 15 away from the substrate 1. The first blocking sub-portion 401 can block the gap 10 corresponding to the first packaging unit 91, and the second blocking sub-portion 402 can block the gap 10 corresponding to the second packaging unit 92. Therefore, when patterning the light-emitting material and packaging material of the third light-emitting unit, the corresponding etching liquid is not easy to invade the first light-emitting unit through the gap 10 corresponding to the first packaging unit 91, and is not easy to invade the second light-emitting unit through the gap 10 corresponding to the second packaging unit 92, so that it is not easy to damage the first light-emitting unit and the second light-emitting unit, and it is not easy to form dark spots, which can ultimately greatly improve the display effect of the display panel.

[0122] See also Figure 21-22 A third blocking sub-portion 403 is formed on a side of the isolation material layer 15 close to the third light-emitting unit away from the substrate 1, and the third blocking sub-portion 403 fills a portion of the gap 10 corresponding to the edge portion 901 of the third encapsulation unit 93. The third blocking sub-portion 403 is connected to the second blocking sub-portion 402 located between the second light-emitting unit and the third light-emitting unit, and the third blocking sub-portion 403 is also connected to the first blocking sub-portion 401 located between the first light-emitting unit and the third light-emitting unit.

[0123] A barrier material layer may be formed on the side of the isolation structure 3 away from the substrate 1, and then the barrier material layer may be patterned to finally form a third barrier sub-portion 403, which may fill a portion of the gap 10 corresponding to the edge portion 901 of the third encapsulation unit 93. In the subsequent preparation process of the display panel, the third light-emitting unit is not easily damaged, and due to the presence of the third barrier sub-portion 403, when the second encapsulation layer 12 of the display panel is formed, the leveling effect of the second encapsulation layer 12 is better, thereby improving the performance of the display panel.

[0124] Preferably, a distance L3 between an edge of an orthographic projection of the third blocking sub-portion 403 on the substrate 1 and an edge of an orthographic projection of the side of the third isolation opening 113 away from the substrate 1 on the substrate 1 is greater than or equal to 1 μm. For example, the distance L3 may be 1 μm, 1.2 μm, 1.5 μm, 1.8 or 2 μm, etc. By properly setting the distance L3, the third blocking sub-portion 403 can effectively block the corresponding gap 10 while preventing the third blocking sub-portion 403 from easily affecting the light-emitting effect of the third light-emitting unit.

[0125] The part of the first blocking sub-portion 401 and the part of the second blocking sub-portion 402 formed by the above method can form Figure 5 The first blocking portion 41, part of the second blocking sub-portion 402 and part of the third blocking sub-portion 403 can form Figure 5 The second blocking portion 42, part of the first blocking sub-portion 401 and part of the third blocking sub-portion 403 may form Figure 5 Thus, the barrier layer 4 can be formed more easily by the above method.

[0126] The first blocking sub-portion 401 formed by the above method includes Figure 6b The first blocking sub-portion 16 and the sixth blocking sub-portion 21, the second blocking sub-portion 402 includes Figure 6b The second blocking sub-portion 17 and the third blocking sub-portion 18 in the embodiment of the present invention, the third blocking sub-portion 403 includes Figure 6b The fourth blocking sub-portion 19 and the fifth blocking sub-portion 20 in the embodiment.

[0127] In some possible implementations, the present application further provides an electronic device, the electronic device comprising the display panel of the present application, or comprising a display panel prepared by the method for preparing a display panel of the present application. The electronic device may include a device with image processing capabilities, such as a server, a personal computer, a laptop computer, a mobile phone, a tablet computer, a wearable device, a vehicle-mounted display device, etc. Since the electronic device comprises the display panel of the present application, the display effect of the electronic device is better.

[0128] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0129] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: The display panel comprises: substrate; An isolation structure, located on one side of the substrate, the isolation structure encloses a plurality of isolation openings; a plurality of light-emitting units, at least a portion of each of the light-emitting units being located in a corresponding isolation opening; A plurality of packaging units, each packaging unit being located on a side of the corresponding light-emitting unit away from the substrate, each packaging unit comprising a edging portion located on a side of the isolation structure away from the substrate, and a gap being formed between a side of the edging portion close to the substrate and a side of the isolation structure away from the substrate; A barrier layer is located on a side of the isolation structure away from the substrate, the barrier layer fills at least a portion of the gap, and an orthographic projection of the barrier layer on the substrate is located within an orthographic projection of the side of the isolation structure away from the substrate on the substrate.

2. The display panel according to claim 1, characterized in that: The isolation structure comprises a first isolation portion and a second isolation portion which are sequentially stacked in a direction away from the substrate, wherein the orthographic projection of a side of the first isolation portion away from the substrate on the substrate is located within the orthographic projection of the second isolation portion on the substrate; The orthographic projection of the barrier layer on the substrate is located within the orthographic projection of the second isolation portion on the substrate; An orthographic projection of the barrier layer on the substrate is located outside an orthographic projection of the isolation opening on the substrate.

3. The display panel according to claim 2, characterized in that: The distance between the edge of the orthographic projection of the barrier layer on the substrate and the edge of the orthographic projection of the second isolation portion on the substrate is greater than or equal to 1 μm; The distance between the side of the barrier layer away from the substrate and the substrate is greater than the distance between the side of the hemming portion away from the substrate and the substrate; At least a portion of the hemming portion extends into the barrier layer.

4. The display panel according to claim 1, characterized in that: The isolation opening includes a first isolation opening and a second isolation opening, the light-emitting unit includes a first light-emitting unit and a second light-emitting unit, at least a portion of the first light-emitting unit is located in the first isolation opening, and at least a portion of the second light-emitting unit is located in the second isolation opening, the encapsulation unit includes a first encapsulation unit and a second encapsulation unit, the first encapsulation unit is located at a side of the first light-emitting unit away from the substrate, and the second encapsulation unit is located at a side of the second light-emitting unit away from the substrate; The barrier layer includes a first barrier portion, the first barrier portion is located between the first light-emitting unit and the second light-emitting unit, and the first barrier portion fills a portion of the gap corresponding to the edge portion of the first encapsulation unit and fills a portion of the gap corresponding to the edge portion of the second encapsulation unit; A distance between an edge of an orthographic projection of the first blocking portion on the substrate and an edge of an orthographic projection of a side of the isolation structure between the first light emitting unit and the second light emitting unit away from the substrate on the substrate is greater than or equal to 1 μm.

5. The display panel according to claim 4, characterized in that: The first blocking portion includes a first blocking sub-portion and a second blocking sub-portion connected to each other, the first blocking sub-portion fills a portion of the gap corresponding to the edge portion of the first packaging unit, and the second blocking sub-portion fills a portion of the gap corresponding to the edge portion of the second packaging unit; the distance from the side of the second blocking sub-portion away from the substrate to the substrate is greater than the distance from the side of the first blocking sub-portion away from the substrate to the substrate.

6. The display panel according to claim 5, characterized in that: The isolation opening further includes a third isolation opening, the light-emitting unit further includes a third light-emitting unit, at least a portion of the third light-emitting unit is located in the third isolation opening, the packaging unit further includes a third packaging unit, and the third packaging unit is located at a side of the third light-emitting unit away from the substrate; The barrier layer further includes a second barrier portion, the second barrier portion is located between the second light emitting unit and the third light emitting unit, and the second barrier portion fills a portion of the gap corresponding to the edge portion of the second encapsulation unit and fills a portion of the gap corresponding to the edge portion of the third encapsulation unit; A distance between an edge of an orthographic projection of the second blocking portion on the substrate and an edge of an orthographic projection of a side of the isolation structure between the second light emitting unit and the third light emitting unit away from the substrate on the substrate is greater than or equal to 1 μm.

7. The display panel according to claim 6, characterized in that: The first blocking portion is connected to the second blocking portion; the second blocking portion includes a third blocking sub-portion and a fourth blocking sub-portion that are connected to each other, the third blocking sub-portion fills a portion of the gap corresponding to the edging portion of the second packaging unit, and the fourth blocking sub-portion fills a portion of the gap corresponding to the edging portion of the third packaging unit; the distance from the side of the fourth blocking sub-portion away from the substrate to the substrate is greater than the distance from the side of the third blocking sub-portion away from the substrate to the substrate.

8. The display panel according to claim 7, characterized in that: The distance between the side of the third blocking sub-portion away from the substrate and the substrate is equal to the distance between the side of the second blocking sub-portion away from the substrate and the substrate; the third blocking sub-portion is connected to the second blocking sub-portion.

9. The display panel according to claim 6, characterized in that: The barrier layer further includes a third barrier portion, the third barrier portion is located between the first light-emitting unit and the third light-emitting unit, and the third barrier portion fills a portion of the gap corresponding to the edge portion of the first encapsulation unit and fills a portion of the gap corresponding to the edge portion of the third encapsulation unit; The distance between the edge of the orthographic projection of the third blocking portion on the substrate and the edge of the orthographic projection of the isolation structure between the first light-emitting unit and the third light-emitting unit on the substrate away from the substrate is greater than or equal to 1 μm; The distance between the second blocking portion and the substrate is equal to the distance between the third blocking portion and the substrate.

10. The display panel according to claim 9, characterized in that: The second blocking portion is connected to the third blocking portion; the first blocking portion is connected to the third blocking portion; the third blocking portion includes a fifth blocking sub-portion and a sixth blocking sub-portion that are connected to each other, the fifth blocking sub-portion fills a portion of the gap corresponding to the edge portion of the third packaging unit, and the sixth blocking sub-portion fills a portion of the gap corresponding to the edge portion of the first packaging unit; the distance from the side of the fifth blocking sub-portion away from the substrate to the substrate is greater than the distance from the side of the sixth blocking sub-portion away from the substrate to the substrate.

11. The display panel according to claim 9, characterized in that: The orthographic projection of the barrier layer on the substrate is in a grid shape; The material of the barrier layer includes an organic material.

12. The display panel according to claim 2, characterized in that: The light-emitting unit comprises a first electrode, a light-emitting functional part, and a second electrode which are sequentially stacked along the thickness direction of the substrate, the isolation structure comprises a conductive material, and the second electrode is electrically connected to the first isolation part; The isolation structure further includes a third isolation portion located on a side of the first isolation portion facing the substrate, and the second electrode is electrically connected to the third isolation portion.

13. A display panel, characterized in that: The display panel comprises: substrate; An isolation structure, located on one side of the substrate, the isolation structure encloses a plurality of isolation openings; A plurality of light emitting units, at least a portion of each of which is located in the corresponding isolation opening, including a first light emitting unit and a second light emitting unit; A blocking layer is located on a side of the isolation structure away from the substrate, the orthographic projection of the blocking layer on the substrate is located within the orthographic projection of the isolation structure on the substrate away from the substrate, the distance between the edge of the orthographic projection of the blocking layer on the substrate and the edge of the orthographic projection of the isolation structure enclosing the first light-emitting unit on the substrate away from the substrate is a first size, the distance between the edge of the orthographic projection of the blocking layer on the substrate and the edge of the orthographic projection of the isolation structure enclosing the second light-emitting unit on the substrate away from the substrate is a second size, and the first size is the same as the second size.

14. The display panel according to claim 13, characterized in that: The display panel also includes a third light-emitting unit, and the distance between the edge of the orthographic projection of the blocking layer on the substrate and the edge of the orthographic projection of the isolation structure enclosing the third light-emitting unit on the side away from the substrate is a third size, and the third size is the same as the second size.

15. The display panel according to claim 13, characterized in that: The display panel further includes: A plurality of packaging units, wherein the packaging units are located on a side of the corresponding light-emitting unit away from the substrate, the packaging units include a edging portion located on a side of the isolation structure away from the substrate, a gap is formed between a side of the edging portion close to the substrate and a side of the isolation structure away from the substrate, and the barrier layer fills at least a portion of the gap; The first size is greater than or equal to 1 μm.

16. An electronic device, characterized in that: The electronic device comprises the display panel according to any one of claims 1 to 15.

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