Display panel and display device

Abstract

The present application provides a display panel and a display device. The ratio of the area of the orthographic projection of a first encapsulation unit on a substrate to the perimeter of the orthographic projection of a first isolation opening on the substrate is a first ratio. The ratio of the area of the orthographic projection of a second encapsulation unit on the substrate to the perimeter of the orthographic projection of a second isolation opening on the substrate is a second ratio. The ratio of the area of the orthographic projection of a third encapsulation unit on the substrate to the perimeter of the orthographic projection of a third isolation opening on the substrate is a third ratio. The first ratio is less than or equal to the sum of the second ratio and the third ratio. The present application can improve the encapsulation reliability.

Description

Display panel and display device

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411846566.6, filed December 13, 2024, entitled “Display panel, method of manufacturing display panel, and display device,” the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND

[0004] Organic Light Emitting Diode (OLED) and flat display devices based on Light Emitting Diode (LED) technology have been widely used in mobile phones, televisions, notebook computers, desktop computers and other consumer electronic products due to their high image quality, power saving, thin body and wide application range. OLED has become the mainstream of display panels. In the preparation process of traditional display panels, the fine metal mask (FMM) is usually used to realize the patterning of light-emitting pixels. FMM technology is mature and has rich mass production experience. However, FMM technology also has the problems of limited precision, high development cost and long development cycle. The fine metal mask-free technology eliminates the limitations of traditional OLED process on display screen size, resolution and other screen performance, and has the advantages of high performance, full-size and agile delivery. The patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN118678742A, CN118785761A, CN115224220A, CN118678729A, CN118660529A and CN118660589A disclose the related content of fine metal mask-free technology, which are referred to.

[0005] However, there are still some problems in the display panel that need to be solved. SUMMARY

[0006] To overcome the technical problems mentioned in the above technical background, the embodiments of the present application provide a display panel, comprising: a substrate; an isolation structure located on one side of the substrate, the isolation structure enclosing a separate opening, the separate opening comprising a first separate opening, a second separate opening and a third separate opening, the area of the first separate opening on the substrate is greater than the area of the second separate opening on the substrate, and the area of the first separate opening on the substrate is greater than the area of the third separate opening on the substrate; a light emitting unit, the light emitting unit comprising a first light emitting unit, a second light emitting unit and a third light emitting unit, the first light emitting unit being at least partially located in the first separate opening, the second light emitting unit being at least partially located in the second separate opening, and the third light emitting unit being at least partially located in the third separate opening; an encapsulation unit, the encapsulation unit comprising a first encapsulation unit, a second encapsulation unit and a third encapsulation unit, the first encapsulation unit being located on the side of the first light emitting unit away from the substrate, the second encapsulation unit being located on the side of the second light emitting unit away from the substrate, and the third encapsulation unit being located on the side of the third light emitting unit away from the substrate; wherein the ratio of the area of the first encapsulation unit on the substrate to the perimeter of the projection of the first separate opening on the substrate is a first ratio, the ratio of the area of the second encapsulation unit on the substrate to the perimeter of the projection of the second separate opening on the substrate is a second ratio, and the ratio of the area of the third encapsulation unit on the substrate to the perimeter of the projection of the third separate opening on the substrate is a third ratio, the first ratio being less than or equal to the sum of the second ratio and the third ratio.

[0007] In some possible embodiments, this application also provides a display panel, the display panel comprising: a substrate; an isolation structure located on one side of the substrate, the isolation structure comprising a first isolation portion and a second isolation portion sequentially stacked along a direction away from the substrate, the second isolation portion enclosing an isolation opening, the isolation opening comprising a first isolation opening, a second isolation opening and a third isolation opening, the orthographic projection area of ​​the first isolation opening on the substrate being larger than the orthographic projection area of ​​the second isolation opening on the substrate, and the orthographic projection area of ​​the first isolation opening on the substrate being larger than the orthographic projection area of ​​the third isolation opening on the substrate; and light-emitting units comprising a first light-emitting unit, a second light-emitting unit and a third light-emitting unit, the first light-emitting unit being at least partially located within the first isolation opening, the second light-emitting unit being at least partially located within the first isolation opening, and the second light-emitting unit being at least partially located within the first isolation opening. The third light-emitting unit is located at least partially within the second isolation opening; the encapsulation unit includes a first encapsulation unit, a second encapsulation unit, and a third encapsulation unit. The first encapsulation unit is located on the side of the first light-emitting unit away from the substrate, the second encapsulation unit is located on the side of the second light-emitting unit away from the substrate, and the third encapsulation unit is located on the side of the third light-emitting unit away from the substrate; wherein, the ratio of the area of ​​the first encapsulation unit to the overlap area of ​​the first encapsulation unit with the isolation structure is a fourth ratio, the ratio of the area of ​​the second encapsulation unit to the overlap area of ​​the second encapsulation unit with the isolation structure is a fifth ratio, and the ratio of the area of ​​the third encapsulation unit to the overlap area of ​​the third encapsulation unit with the isolation structure is a sixth ratio, and the fourth ratio is less than or equal to the sum of the fifth and sixth ratios.

[0008] In some possible embodiments, this application also provides a display panel, the display panel comprising: a substrate; an isolation structure located on one side of the substrate, the isolation structure comprising a first isolation portion and a second isolation portion sequentially stacked along a direction away from the substrate, the second isolation portion enclosing an isolation opening; a light-emitting unit located at least partially within the isolation opening; and an encapsulation unit located on the side of the light-emitting unit away from the substrate; wherein the ratio of the orthographic projection area of ​​the encapsulation unit on the substrate to the perimeter of the orthographic projection of the corresponding isolation opening on the substrate is less than or equal to 50.

[0009] In some possible embodiments, this application also provides a display panel, the display panel comprising: a substrate; an isolation structure located on one side of the substrate, the isolation structure comprising a first isolation portion and a second isolation portion sequentially stacked along a direction away from the substrate, the second isolation portion enclosing an isolation opening; a light-emitting unit located at least partially within the isolation opening; and an encapsulation unit located on the side of the light-emitting unit away from the substrate; wherein the ratio of the area of ​​the encapsulation unit to the overlap area between the encapsulation unit and the isolation structure is less than or equal to 50.

[0010] In some possible embodiments, this application also provides a method for manufacturing a display panel, the method comprising: providing a substrate; forming an isolation structure on one side of the substrate, the isolation structure enclosing an isolation opening, the isolation opening including a first isolation opening, a second isolation opening, and a third isolation opening, wherein the orthographic projection area of ​​the first isolation opening on the substrate is larger than the orthographic projection area of ​​the second isolation opening on the substrate, and the orthographic projection area of ​​the first isolation opening on the substrate is larger than the orthographic projection area of ​​the third isolation opening on the substrate; forming at least a portion of light-emitting units within the isolation opening, the light-emitting units including a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit, wherein the first light-emitting unit is at least partially located within the first isolation opening, the second light-emitting unit is at least partially located within the second isolation opening, and the third light-emitting unit is at least partially located within the third isolation opening. Inside; an encapsulation unit is formed on the side of the light-emitting unit away from the substrate. The encapsulation unit includes a first encapsulation unit, a second encapsulation unit, and a third encapsulation unit. The first encapsulation unit is located on the side of the first light-emitting unit away from the substrate, the second encapsulation unit is located on the side of the second light-emitting unit away from the substrate, and the third encapsulation unit is located on the side of the third light-emitting unit away from the substrate. The ratio of the orthographic projection area of ​​the first encapsulation unit on the substrate to the perimeter of the orthographic projection of the first isolation opening on the substrate is a first ratio. The ratio of the orthographic projection area of ​​the second encapsulation unit on the substrate to the perimeter of the orthographic projection of the second isolation opening on the substrate is a second ratio. The ratio of the orthographic projection area of ​​the third encapsulation unit on the substrate to the perimeter of the orthographic projection of the third isolation opening on the substrate is a third ratio. The first ratio is less than or equal to the sum of the second ratio and the third ratio.

[0011] In some possible implementations, this application also provides a display device, which includes the display panel of this application, or a display panel prepared by the preparation method of the display panel of this application.

[0012] This application has the following beneficial effects:

[0013] The present application provides a display panel, a method for manufacturing the display panel, and a display device. By setting a first ratio to be less than or equal to the sum of a second ratio and a third ratio, the stability of the first encapsulation unit can be improved, making the first encapsulation unit less likely to fall off. This improves the encapsulation effect of the first encapsulation unit on the first light-emitting unit, and thus improves the display effect of the display panel. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 is one of the partial top views of the display panel provided in the embodiments of this application.

[0016] Figure 2 is one of the cross-sectional views of section AA in Figure 1 provided in the embodiments of this application.

[0017] Figure 3 is a second partial top view of the display panel provided in an embodiment of this application.

[0018] Figure 4 is one of the cross-sectional views of section BB in Figure 3 provided in the embodiments of this application.

[0019] Figure 5 is a second cross-sectional view of section BB in Figure 3 provided in the embodiment of this application.

[0020] Figure 6 is a third cross-sectional view of section BB in Figure 3 provided in the embodiment of this application.

[0021] Figure 7 is a partial top view of the display panel provided in the embodiment of this application.

[0022] Figure 8 is a cross-sectional view of the CC section in Figure 7 provided in an embodiment of this application.

[0023] Figure 9a is a partial top view of the display panel provided in an embodiment of this application.

[0024] Figure 9b is a cross-sectional view of section DD in Figure 9a provided in an embodiment of this application.

[0025] Figure 10a is a partial top view of the display panel provided in the embodiment of this application.

[0026] Figure 10b is a cross-sectional view of MM in Figure 10a provided in an embodiment of this application.

[0027] Figure 11 is a partial top view of the display panel provided in the embodiment of this application.

[0028] Figure 12 is a cross-sectional view of EE in Figure 11 provided in an embodiment of this application.

[0029] Figure 13 is a partial top view of the display panel provided in the embodiment of this application (the seventh of the series).

[0030] Figure 14 is a cross-sectional view of FF in Figure 13 provided in an embodiment of this application.

[0031] Figure 15 is a second cross-sectional view of section AA in Figure 1 provided in an embodiment of this application.

[0032] Figure 16 is a third cross-sectional view of section AA in Figure 1 provided in the embodiment of this application.

[0033] Figure 17 is a partial top view of the display panel provided in the embodiment of this application (eighth of the above).

[0034] Figure 18 is a partial top view of the display panel provided in an embodiment of this application.

[0035] Figure 19 is a partial top view of the display panel provided in the embodiment of this application.

[0036] Figure 20 is a flowchart illustrating a method for preparing a display panel according to an embodiment of this application.

[0037] Figure 21 is a cross-sectional schematic diagram of a pixel defining material layer and an isolation material layer sequentially formed on one side of a substrate according to an embodiment of this application.

[0038] Figure 22 is a cross-sectional view of the isolation material layer and the pixel material layer after patterning in sequence according to an embodiment of this application.

[0039] Reference numerals: 1. Substrate; 101. Substrate; 102. Conductive layer; 103. Insulating layer; 1031. Via; 2. First electrode; 21. First sub-electrode; 3. Light-emitting part; 31. Light-emitting sub-part; 4. Second electrode; 41. Second sub-electrode; 5. Light-emitting unit; 51. Light-emitting sub-unit; 6. Pixel defining layer; 61. Pixel opening; 7. Isolation structure; 71. First isolation part; 72. Second isolation part; 73. Third isolation part; 8. Packaging unit; 801. Packaging part; 8011. Packaging sub-part; 802. Edge-sealing part; 81. First packaging unit; 811. First edge-sealing part; 82. Second packaging unit; 821. Second encapsulation portion; 83, Third encapsulation unit; 831, Third encapsulation portion; 9, Isolation opening; 901, Isolation sub-opening; 91, First isolation opening; 911, First isolation sub-opening; 92, Second isolation opening; 93, Third isolation opening; 10, Concave-convex structure; 1001, First concave-convex structure; 1002, Second concave-convex structure; 11, Reinforcing block; 111, First reinforcing part; 112, Second reinforcing part; 12, Second encapsulation layer; 13, Third encapsulation layer; 14, Pixel defining material layer; 15, Isolation material layer; 16, First opening; 161, First sub-opening; 162, Second sub-opening; 163, Third sub-opening. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] In the description of this application, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0045] Increasing the density of light-emitting units (i.e., pixel density) in a display panel is a crucial way to improve display quality. However, current display panels manufactured using fine vapor deposition mask (FMM) technology are limited by technology and cannot further increase the density of light-emitting units. Through long-term research, the inventors discovered that to solve the technical problem of not being able to further increase the density of light-emitting units, an isolation structure can be incorporated into some display panels. During the full-layer vapor deposition of the light-emitting functional layer and the second electrode, the light-emitting functional layer and the second electrode can be disconnected at the isolation structure. Through multiple vapor deposition and etching processes (i.e., patterning of light-emitting units), light-emitting units of different colors can be formed in different isolation openings.

[0046] 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 an encapsulation unit located on the side of the light-emitting unit away from the substrate. The encapsulation unit can encapsulate the light-emitting unit.

[0047] However, through long-term research, the inventors discovered that the packaging unit of the display panel in the related technology is prone to falling off, which affects the packaging effect of the packaging unit on the light-emitting unit, making the light-emitting unit prone to forming dark spots, and ultimately affecting the display effect of the display panel.

[0048] To address the aforementioned technical problems, the inventors have innovatively designed the following technical solutions, which will be described in detail below with reference to the accompanying drawings. It should be noted that the deficiencies in the solutions of the related technologies described above are the result of the inventors' practical experience and careful research. Therefore, the discovery process of the aforementioned technical problems and the solutions proposed in this embodiment below are contributions made by the inventors to this application during the invention process, and should not be construed as technical content known to those skilled in the art.

[0049] Please refer to Figures 1 and 2. This embodiment provides a display panel, which includes a substrate 1, an isolation structure 7, a light-emitting unit 5, and an encapsulation unit 8.

[0050] An isolation structure 7 is located on one side of the substrate 1, and the isolation structure 7 encloses and forms an isolation opening 9. The isolation opening 9 includes a first isolation opening 91, a second isolation opening 92, and a third isolation opening 93. The orthographic projection area of ​​the first isolation opening 91 on the substrate 1 is larger than the orthographic projection area of ​​the second isolation opening 92 on the substrate 1, and the orthographic projection area of ​​the first isolation opening 91 on the substrate 1 is larger than the orthographic projection area of ​​the third isolation opening 93 on the substrate 1. Specifically, the orthographic projection of the first isolation opening 91 on the substrate 1 refers to the opening formed by the orthographic projection of the isolation structure 7 corresponding to the first isolation opening 91 on the substrate 1; the orthographic projection of the second isolation opening 92 on the substrate 1 refers to the opening formed by the orthographic projection of the isolation structure 7 corresponding to the second isolation opening 92 on the substrate 1; and the orthographic projection of the third isolation opening 93 on the substrate 1 refers to the opening formed by the orthographic projection of the isolation structure 7 corresponding to the third isolation opening 93 on the substrate 1.

[0051] The light-emitting unit 5 includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit. The first light-emitting unit is at least partially located within the first isolation opening 91, the second light-emitting unit is at least partially located within the second isolation opening 92, and the third light-emitting unit is at least partially located within the third isolation opening 93.

[0052] The packaging unit 8 includes a first packaging unit 81, a second packaging unit 82 and a third packaging unit 83. The first packaging unit 81 is located on the side of the first light-emitting unit away from the substrate 1, the second packaging unit 82 is located on the side of the second light-emitting unit away from the substrate 1, and the third packaging unit 83 is located on the side of the third light-emitting unit away from the substrate 1.

[0053] The ratio of the orthographic projection area of ​​the first packaging unit 81 on the substrate 1 to the perimeter of the orthographic projection of the first isolation opening 91 on the substrate 1 is the first ratio; the ratio of the orthographic projection area of ​​the second packaging unit 82 on the substrate 1 to the perimeter of the orthographic projection of the second isolation opening 92 on the substrate 1 is the second ratio; and the ratio of the orthographic projection area of ​​the third packaging unit 83 on the substrate 1 to the perimeter of the orthographic projection of the third isolation opening 93 on the substrate 1 is the third ratio. The first ratio is less than or equal to the sum of the second and third ratios.

[0054] The first light-emitting unit, the second light-emitting unit, and the third light-emitting unit emit different colors. For example, the first light-emitting unit emits red, the second light-emitting unit emits green, and the third light-emitting unit emits blue. Typically, the projected area of ​​the first isolation opening 91 corresponding to the first light-emitting unit on the substrate 1 is larger than the projected area of ​​the second isolation opening 92 corresponding to the second light-emitting unit and the third isolation opening 93 corresponding to the third light-emitting unit on the substrate 1.

[0055] The larger the area of ​​the isolation opening 9, the larger the area of ​​the packaging unit 8 covering the isolation opening 9. Therefore, under normal circumstances, the orthographic projection area of ​​the first packaging unit 81 on the substrate 1 is greater than the orthographic projection area of ​​the second packaging unit 82 and the third packaging unit 83 on the substrate 1.

[0056] The larger the area of ​​the packaging unit 8, the greater the external scouring force it is subjected to, and the easier it is to fall off. Therefore, the external scouring force on the third packaging unit 83 is usually greater than that on the second packaging unit 82 and the third packaging unit 83. The first packaging unit 81 is more likely to fall off than the second packaging unit 82 and the third packaging unit 83.

[0057] Furthermore, the larger the perimeter of the orthographic projection of the isolation opening 9 onto the substrate 1, the larger the contact area between the packaging unit 8 and the isolation structure 7, the greater the adhesive force between the packaging unit 8 and the isolation structure 7, and the less likely the packaging unit 8 is to fall off.

[0058] In summary, the stability of the packaging unit 8 is related to the perimeter of the orthographic projection of the isolation opening 9 onto the substrate 1, and the size of the area of ​​the orthographic projection of the packaging unit 8 onto the substrate 1.

[0059] Through long-term research, the inventors discovered that the stability of the second packaging unit 82 and the third packaging unit 83 in the display panel is better than that of the first packaging unit 81, and they are not easily dropped by external forces. Therefore, based on the second packaging unit 82 and the third packaging unit 83, when the ratio of the orthographic projection area of ​​the first packaging unit 81 on the substrate 1 to the perimeter of the orthographic projection of the first isolation opening 91 on the substrate 1 is less than or equal to the sum of the ratios of the orthographic projection area of ​​the second packaging unit 82 on the substrate 1 to the perimeter of the orthographic projection of the second isolation opening 92 on the substrate 1 and the ratios of the orthographic projection area of ​​the third packaging unit 83 on the substrate 1 to the perimeter of the orthographic projection of the third isolation opening 93 on the substrate 1, that is, when the first ratio is less than or equal to the sum of the second and third ratios, the stability of the first packaging unit 81 can be guaranteed. This allows the first packaging unit 81 to achieve a better packaging effect on the first light-emitting unit, making it less likely for the first light-emitting unit to produce dark spots, thereby improving the display effect of the display panel.

[0060] Based on the above design, in this embodiment, by setting the first ratio to be less than or equal to the sum of the second and third ratios, the stability of the first encapsulation unit 81 can be improved, making the first encapsulation unit 81 less likely to fall off, thereby improving the encapsulation effect of the first encapsulation unit 81 on the first light-emitting unit, and thus improving the display effect of the display panel.

[0061] In some possible implementations, the first ratio is greater than the second ratio, and the first ratio is greater than the third ratio.

[0062] In some possible implementations, referring again to Figures 1 and 2, the ratio of the orthographic projection area of ​​the packaging unit 8 on the substrate 1 to the perimeter of the orthographic projection of the corresponding isolation opening 9 on the substrate 1 is less than or equal to 50. For example, this ratio can be 50, 45, 40, 35, 30, 25, 20, or 15, etc. Setting this ratio appropriately can improve the stability of the packaging unit 8, making it less likely for the packaging unit 8 to fall off.

[0063] Preferably, the ratio of the orthographic projection area of ​​the packaging unit 8 on the substrate 1 to the perimeter of the orthographic projection of the corresponding isolation opening 9 on the substrate 1 is less than or equal to 35. For example, this ratio can be 35, 30, 25, 20, or 15, etc. Setting this ratio appropriately can further improve the stability of the packaging unit 8, making it less likely for the packaging unit 8 to fall off.

[0064] Preferably, at least a portion of the encapsulation unit 8 extends from the side of the isolation structure 7 toward the isolation opening 9 to the side of the isolation structure 7 away from the substrate 1. The encapsulation unit 8 includes an edge portion 802 and an encapsulation portion 801 connected to each other. The edge portion 802 is located on the side of the isolation structure 7 away from the substrate 1, and the encapsulation portion 801 is located within the isolation opening 9. The ratio of the orthographic projection area of ​​the encapsulation portion 801 on the substrate 1 to the perimeter of the orthographic projection of the corresponding isolation opening 9 on the substrate 1 is less than or equal to 45. For example, this ratio can be 45, 40, 35, 30, 25, 20, or 15. Setting this ratio appropriately can improve the stability of the encapsulation unit 8, making it less likely for the encapsulation unit 8 to fall off. The orthographic projection area of ​​the encapsulation portion 801 on the substrate 1 refers to the orthographic projection area of ​​the isolation opening 9 formed by the isolation structure 7 on the substrate 1.

[0065] Optionally, there is a gap between the side of the edge portion 802 near the substrate 1 and the side of the isolation structure 7 away from the substrate 1.

[0066] The edge-covering portion 802 and the encapsulation portion 801 are integrally formed. The orthographic projection of the encapsulation portion 801 on the substrate 1 covers the orthographic projection of the corresponding light-emitting unit 5 on the substrate 1. The encapsulation portion 801 is the effective encapsulation portion of the light-emitting unit 5.

[0067] Furthermore, the ratio of the orthographic projection area of ​​the package portion 801 on the substrate 1 to the perimeter of the orthographic projection of the corresponding isolation opening 9 on the substrate 1 is less than or equal to 30. For example, this ratio can be 30, 28, 25, 23, 20, 17 or 15, etc., which can further improve the stability of the package unit 8.

[0068] In some possible implementations, see Figures 3 and 4. The isolation opening 9 includes at least two isolation sub-openings 901, the light-emitting unit 5 includes at least two light-emitting sub-units 51, the light-emitting sub-units 51 are located within the isolation sub-openings 901, and the encapsulation unit 8 covers the multiple light-emitting sub-units 51 located within the same isolation opening 9 and contacts the isolation structure 7 located between two adjacent isolation sub-openings 901.

[0069] The same light-emitting unit 5 is divided into at least two light-emitting sub-units 51. Therefore, the light-emitting sub-units 51 located in the same isolation opening 9 emit the same color. Adjacent light-emitting sub-units 51 are separated by an isolation structure 7. The encapsulation unit 8 can contact the isolation structure 7 between adjacent light-emitting sub-units 51. In this way, the contact area between the encapsulation unit 8 and the isolation structure 7 can be further increased, and the adhesion between the encapsulation unit 8 and the isolation structure 7 can be greater, thereby improving the stability of the encapsulation unit 8 and making it less likely to fall off.

[0070] Preferably, the packaging unit 8 includes a packaging sub-part 8011 located within the isolating sub-opening 901. The ratio of the orthographic projection area of ​​the packaging sub-part 8011 on the substrate 1 to the perimeter of the orthographic projection of the corresponding isolating sub-opening 901 on the substrate 1 is less than or equal to 45. For example, this ratio can be 45, 40, 35, 30, 25, 20, or 15, etc. Setting this ratio appropriately can improve the stability of the packaging unit 8, making it less likely for the packaging unit 8 to fall off. The orthographic projection area of ​​the packaging sub-part 8011 on the substrate 1 refers to the orthographic projection area of ​​the isolating sub-opening 901 formed by the isolation structure 7 on the substrate 1.

[0071] Preferably, the ratio of the orthographic projection area of ​​the package sub-part 8011 on the substrate 1 to the perimeter of the orthographic projection of the isolation sub-opening 901 corresponding to the package sub-part 8011 on the substrate 1 is less than or equal to 30. For example, this ratio can be 30, 28, 25, 23, 20, 17 or 15, etc., which can further improve the stability of the package unit 8.

[0072] Preferably, the encapsulation unit 8 covers the isolation structure 7 located between two adjacent isolator openings 901. The encapsulation unit 8 covers the sidewalls of the isolation structure 7 located between adjacent isolator openings 901 and the side away from the substrate 1, thereby further increasing the contact area between the encapsulation unit 8 and the isolation structure 7.

[0073] Preferably, the width W of the orthographic projection of the isolation structure 7 between two adjacent isolator openings 901 onto the substrate 1 is greater than or equal to 3 μm and less than or equal to 6 μm.

[0074] For example, the width W can be 3μm, 3.5μm, 4μm, 5μm, 5.5μm or 6μm, etc. By reasonably setting the width W, the encapsulation effect of the encapsulation unit 8 on the light-emitting unit 5 can be improved without affecting the light-emitting effect of the light-emitting unit 5.

[0075] Preferably, the shape of the orthographic projection of the isolator opening 901 onto the substrate 1 includes at least one of a rectangle and a square. Thus, the isolator opening 9 can be divided into isolator openings 901 of different shapes according to actual needs.

[0076] Preferably, the orthographic projection of the isolator opening 901 onto the substrate 1 is rectangular. When the orthographic projection areas of the isolator opening 901 onto the substrate 1 are equal, the rectangular shape of the isolator opening 901 results in a larger perimeter and a larger contact area between the packaging unit 8 and the isolation structure 7, thereby further improving the stability of the packaging unit 8.

[0077] In some possible implementations, please refer again to Figures 2-4. The light-emitting unit 5 includes a first electrode 2, a light-emitting part 3 and a second electrode 4 stacked sequentially in a direction away from the substrate 1. The second electrode 4 is electrically connected to the first isolation part 71. The display panel also includes a pixel defining layer 6 located between the substrate 1 and the isolation structure 7. The pixel defining layer 6 is provided with a pixel opening 61, which communicates with the isolation opening 9.

[0078] Optionally, the light-emitting part 3 includes a plurality of light-emitting sub-parts 31 arranged at intervals, the second electrode 4 includes a plurality of second sub-electrodes 41 arranged at intervals, and the light-emitting sub-unit 51 includes light-emitting sub-parts 31 and second sub-electrodes 41.

[0079] When the light-emitting part 3 is formed, the light-emitting part 3 will be disconnected at the isolation structure 7 between adjacent isolator openings 901 to form a light-emitting sub-part 31. When the second electrode 4 is formed, the second electrode 4 will be disconnected at the isolation structure 7 between adjacent isolator openings 901 to form a second sub-electrode 41. The second sub-electrode 41 overlaps with the isolation structure 7.

[0080] Preferably, as shown in Figures 3-6, the substrate 1 includes a substrate 101 and a conductive layer 102 and an insulating layer 103 stacked sequentially on one side of the substrate 101. The insulating layer 103 is provided with a plurality of vias 1031 penetrating the insulating layer 103. The first electrode 2 is electrically connected to the conductive layer 102 through the vias 1031.

[0081] The display panel also includes a buffer layer, a semiconductor layer, a first conductive layer, a second conductive layer, a third conductive layer, and a fourth conductive layer, sequentially stacked on one side of the substrate 101. The semiconductor layer includes a source region, a drain region, and a channel region. The first conductive layer includes a gate and a first capacitor plate. The second conductive layer includes a second capacitor plate, which together form a capacitor. The third conductive layer includes a drain and a source, with the drain electrically connected to the drain region and the source electrically connected to the source region. The gate, source, and drain form a driving transistor. In this embodiment, the conductive layer 102 is located on the fourth conductive layer. The side of the conductive layer 102 closest to the substrate 101 is electrically connected to the drain of the driving transistor, and the side of the conductive layer 102 furthest from the substrate 101 is electrically connected to the first electrode 2 through a via 1031. Thus, the signal driving the transistor can be transmitted to the first electrode 2 through the conductive layer 102 to illuminate the corresponding light-emitting unit 5.

[0082] In some embodiments, referring again to Figures 3 and 5, multiple light-emitting sub-units 51 located within the same isolation opening 9 share a first electrode 2. In this embodiment, multiple light-emitting sub-units 51 within the same isolation opening 9 are provided with power signals through the same first electrode 2. Each light-emitting sub-unit 51 includes a first electrode 2, a light-emitting sub-part 31, and a second sub-electrode 41.

[0083] In some other embodiments, please refer again to Figures 3 and 6. The first electrode 2 includes a plurality of first sub-electrodes 21 spaced apart. The light-emitting sub-unit 51 includes the first sub-electrodes 21. The first sub-electrodes 21 are electrically connected to the conductive layer 102 through the via 1031.

[0084] In this embodiment, for example, the same isolation opening 9 is divided into two isolation sub-openings 901, and the same first electrode 2 is divided into two first sub-electrodes 21. Each isolation sub-opening 901 contains a light-emitting sub-unit 51. Each light-emitting sub-unit 51 includes a first sub-electrode 21, a light-emitting portion 31, and a second sub-electrode 41. The first sub-electrode 21 of each light-emitting sub-unit 51 is electrically connected to the conductive layer 102 through a via 1031. In this way, the first sub-electrodes 21 of different light-emitting sub-units 51 within the same isolation opening 9 are independent of each other. When the first sub-electrode 21 of one light-emitting sub-unit 51 is damaged (e.g., oxidized), it will not affect the first sub-electrode 21 of the other light-emitting sub-unit 51, thus not affecting the normal display of the other light-emitting sub-unit 51, thereby improving the display effect of the display panel.

[0085] Preferably, as shown in Figures 7 and 8, the first isolation opening 91 includes at least two first isolation sub-openings 911, and the first light-emitting unit includes at least two first light-emitting sub-units 51, with the first light-emitting sub-units 51 located within the first isolation sub-openings 911.

[0086] Based on the above analysis, the stability of the first packaging unit 81 in the related technology is worse than that of the second packaging unit 82 and the third packaging unit 83. Therefore, in this embodiment, the first isolation opening 91 can be divided into multiple first isolation sub-openings 911. In this way, the contact area between the first packaging unit 81 and the isolation structure 7 can be increased, thereby improving the stability of the first packaging unit 81.

[0087] In some possible implementations, please refer to Figures 9a and 9b. The first packaging unit 81 includes a first edge portion 811 located on the side of the isolation structure 7 away from the substrate 1, and the second packaging unit 82 includes a second edge portion 812 located on the side of the isolation structure 7 away from the substrate 1. Along the arrangement direction of the first isolation opening 91 and the second isolation opening 92, the extension length D1 of the first edge portion 811 is less than the extension length D2 of the second edge portion 812.

[0088] Optionally, the third packaging unit 83 includes a third edge portion 813 located on the side of the isolation structure 7 away from the substrate 1. Along the arrangement direction of the first isolation opening 91 and the third isolation opening 93, the extension length D1 of the first edge portion 811 is less than the extension length D3 of the third edge portion 813.

[0089] There is a gap between the side of the first edge portion 811 near the substrate 1 and the side of the isolation structure 7 away from the substrate 1; there is a gap between the side of the second edge portion 812 near the substrate 1 and the side of the isolation structure 7 away from the substrate 1; and there is a gap between the side of the third edge portion 813 near the substrate 1 and the side of the isolation structure 7 away from the substrate 1. It can be seen that the first edge portion 811, the second edge portion 812 and the third edge portion 813 are all in a suspended state.

[0090] Since the edge portion 802 is in a suspended state, the extension length of the edge portion 802 will affect the stability of the packaging unit 8. Specifically, the longer the extension length of the edge portion 802, the greater the scouring force on the corresponding packaging unit 8, and the easier it is for the corresponding packaging unit 8 to fall off.

[0091] In this embodiment, the extension length D1 of the first edge-wrapping portion 811 is set to be less than the extension length D2 of the second edge-wrapping portion 812, and the extension length D1 of the first edge-wrapping portion 811 is set to be less than the extension length D3 of the third edge-wrapping portion 813. Thus, the first packaging unit 81 has better stability compared to the second packaging unit 82 and the third packaging unit 83; if the second packaging unit 82 and the third packaging unit 83 are not prone to falling off, the first packaging unit 81 is also less likely to fall off.

[0092] Preferably, along the arrangement direction of the first isolation opening 91 and the second isolation opening 92, the extension length D1 of the first edge portion 811 is greater than or equal to 1 μm and less than or equal to 6 μm.

[0093] For example, the extension length D1 can be 1μm, 2μm, 3μm, 4μm, 5μm or 6μm, etc. Setting the extension length D1 appropriately can be more conducive to increasing the stability of the first packaging unit 81.

[0094] Preferably, as shown in Figures 10a and 10b, the first edge portion 811 and the second edge portion 812 at least partially overlap, with the first edge portion 811 located on the side of the second edge portion 812 closer to the substrate 1.

[0095] Optionally, the first edge portion 811 and the third edge portion 813 overlap at least partially, with the first edge portion 811 located on the side of the third edge portion 813 closer to the substrate 1.

[0096] Since the first edge-wrapping portion 811 overlaps with the second edge-wrapping portion 812 and the third edge-wrapping portion 813, and the first edge-wrapping portion 811 is located on the side of the second edge-wrapping portion 812 and the third edge-wrapping portion 813 closer to the substrate 1, when an external scouring force impacts the packaging unit 8, the scouring force will first impact the second edge-wrapping portion 812 and the third edge-wrapping portion 813. The second edge-wrapping portion 812 and the third edge-wrapping portion 813 can protect the first edge-wrapping portion 811, making the first edge-wrapping portion 811 less likely to break. This can reduce the scouring force on the first packaging unit 81, thereby further reducing the risk of the first packaging unit 81 falling off.

[0097] In some possible implementations, see Figures 11-12. The sidewall of the isolation structure 7 facing the isolation opening 9 is provided with a concave-convex structure 10, and the encapsulation unit 8 contacts the concave-convex structure 10.

[0098] The sidewall of the isolation structure 7 facing the isolation opening 9 has a concave-convex structure 10, which can increase the surface area of ​​the sidewall of the isolation structure 7. The packaging unit 8 contacts the sidewall of the isolation structure 7, thus increasing the contact area between the packaging unit 8 and the isolation structure 7, thereby improving the adhesion between the packaging unit 8 and the isolation structure 7, and further improving the stability of the packaging unit 8, making the packaging unit 8 less likely to fall off.

[0099] Preferably, the concave-convex structure 10 includes a first concave-convex structure 1001, which is located on the side of the first isolation portion 71 facing the isolation opening 9.

[0100] Optionally, the concave-convex structure 10 includes a second concave-convex structure 1002, which is located on the side of the second isolation portion 72 facing the isolation opening 9.

[0101] The encapsulation unit 8 is in contact with both the first convex and concave structure 1001 and the second convex and concave structure 1002. Thus, the convex and concave structure 10 covers the entire sidewall of the isolation structure 7 facing the isolation opening 9, thereby further increasing the contact area between the encapsulation unit 8 and the isolation structure 7.

[0102] Preferably, the first convex-concave structure 1001 is serrated. Compared with other convex-concave structures 10, the serrated first convex-concave structure 1001 can further increase the surface area of ​​the sidewall of the first isolation portion 71 facing the isolation opening 9, thereby further increasing the contact area between the encapsulation unit 8 and the isolation structure 7.

[0103] Preferably, the encapsulation unit 8 and the convex-concave structure 10 are fitted together. The encapsulation unit 8 and the convex-concave structure 10 are tightly fitted together, which increases the adhesive force between the encapsulation unit 8 and the convex-concave structure 10.

[0104] In some possible implementations, see Figures 13-14. The display panel also includes a reinforcing block 11 located within the isolation opening 9, and the encapsulation unit 8 contacts the reinforcing block 11.

[0105] The orthographic projection of the reinforcing block 11 on the substrate 1 is outside the orthographic projection of the isolation structure 7 on the substrate 1, and the orthographic projection of the reinforcing block 11 on the substrate 1 is outside the orthographic projection of the pixel defining layer 6 on the substrate 1. That is, the reinforcing block 11 does not contact the isolation structure 7 and the pixel defining layer 6, and is independently set in the isolation opening 9. The reinforcing block 11 will not affect the normal display of the light-emitting unit 5.

[0106] Since the packaging unit 8 is in contact with the reinforcing block 11, the contact area between the packaging unit 8 and the reinforcing block 11 can be increased, thereby improving the stability of the packaging unit 8.

[0107] Preferably, the encapsulation unit 8 extends from the reinforcing block 11 toward the sidewall of the isolation structure 7 to the side of the reinforcing block 11 away from the substrate 1, and the encapsulation unit 8 covers the reinforcing block 11. The encapsulation unit 8 covers the exposed surface of the reinforcing block 11, thereby further increasing the contact area between the encapsulation unit 8 and the reinforcing block 11.

[0108] Preferably, there are multiple reinforcing blocks 11. In this way, the contact area between the encapsulation unit 8 and the reinforcing blocks 11 can be further increased without affecting the normal display of the light-emitting unit 5.

[0109] In some possible implementations, along the direction away from the substrate 1, the reinforcing block 11 includes a first reinforcing part 111 and a second reinforcing part 112. The second reinforcing part 112 is in the same layer as the isolation structure 7. The second reinforcing part 112 and the isolation structure 7 have the same layer structure and the same layer material.

[0110] Optionally, the first reinforcing part 111 is on the same layer as the pixel defining layer 6, and the material of the first reinforcing part 111 is the same as the material of the pixel defining layer 6.

[0111] The first reinforcing part 111 is formed at the same time as the pixel defining layer 6, and the second reinforcing part 112 is formed at the same time as the isolation structure 7. Therefore, it is not necessary to set up a special process for forming the first reinforcing part 111 and the second reinforcing part 112, thereby reducing the process cost of forming the reinforcing block 11.

[0112] In some possible implementations, please refer to Figures 1 and 15. The minimum distance between the edge of the orthographic projection of the side of the first isolation portion 71 corresponding to the first light-emitting unit away from the substrate 1 and the edge of the orthographic projection of the side of the second isolation portion 72 close to the substrate 1 on the substrate 1 is a first distance L1. The minimum distance between the edge of the orthographic projection of the side of the first isolation portion 71 corresponding to the second light-emitting unit away from the substrate 1 and the edge of the orthographic projection of the side of the second isolation portion 72 close to the substrate 1 on the substrate 1 is a second distance L2. The first distance L1 is greater than the second distance L2.

[0113] Preferably, the minimum distance between the edge of the orthographic projection of the side of the first isolation portion 71 away from the substrate 1 and the edge of the orthographic projection of the side of the second isolation portion 72 close to the substrate 1 is the third distance L3, and the first distance L1 is greater than the third distance L3.

[0114] The greater the minimum distance between the edge of the first isolation portion 71 projected onto the substrate 1 on the side away from the substrate 1 and the edge of the second isolation portion 72 projected onto the substrate 1 on the side close to the substrate 1, the greater the etching amount of the first isolation portion 71, the longer the second isolation portion 72 extends relative to the first isolation portion 71, and the larger the contact area between the packaging unit 8 and the first isolation portion 71 and the second isolation portion 72.

[0115] In this embodiment, the first distance L1 is set to be greater than the second distance L2, and the first distance L1 is set to be greater than the third distance L3. The contact area between the first encapsulation unit 81 and the isolation structure 7 is larger than the contact area between the second encapsulation unit 82 and the third encapsulation unit 83 and the isolation structure 7. If the first encapsulation unit 81 and the second encapsulation unit 82 are not easy to fall off, the third encapsulation unit 83 is also not easy to fall off, thereby improving the encapsulation effect of the encapsulation unit 8 on the light-emitting unit 5.

[0116] Preferably, the first distance L1 is greater than or equal to 0.3 μm and less than or equal to 0.7 μm. For example, the first distance L1 can be 0.3 μm, 0.4 μm, 0.5 μm, 0.6 μm or 0.7 μm, etc. By reasonably setting the first distance L1, the overlap area between the first encapsulation unit 81 and the isolation structure 7 can be increased while ensuring that the second electrode 4 of the first light-emitting unit is effectively connected to the isolation structure 7.

[0117] In some possible implementations, please refer again to Figures 1 and 2. The isolation structure 7 includes a first isolation portion 71 and a second isolation portion 72 stacked sequentially along the direction away from the substrate 1. The second electrode 4 of the light-emitting unit 5 is electrically connected to the first isolation portion 71. The orthographic projection of the side of the first isolation portion 71 away from the substrate 1 on the substrate 1 is located within the orthographic projection of the second isolation portion 72 on the substrate 1.

[0118] Since the second isolation portion 72 is located on the side of the first isolation portion 71 away from the substrate 1, and on a plane parallel to the substrate 1, the lateral width of the second isolation portion 72 is greater than the lateral width of the first isolation portion 71. Therefore, the second isolation portion 72 causes the light-emitting material layer and the second electrode material layer to be disconnected at the isolation structure 7. In this way, the isolation structure 7 formed by the first isolation portion 71 and the second isolation portion 72 makes it easier to independently package each light-emitting unit, thereby improving the packaging yield of the display panel.

[0119] Preferably, the first isolation portion 71 forms a first opening 16 on the side away from the substrate 1. The first opening 16 includes a first sub-opening 161, a second sub-opening 162, and a third sub-opening 163. The orthographic projection area of ​​the first sub-opening 161 on the substrate 1 is larger than the orthographic projection area of ​​the second sub-opening 162 on the substrate 1, and the orthographic projection area of ​​the first sub-opening 161 on the substrate 1 is larger than the orthographic projection area of ​​the third sub-opening 163 on the substrate 1. The first light-emitting unit is at least partially located in the first sub-opening 161, the second light-emitting unit is at least partially located in the second sub-opening 162, and the third light-emitting unit is at least partially located in the third sub-opening 163.

[0120] The ratio of the projected area of ​​the first packaging unit 81 on the substrate 1 to the perimeter of the projected area of ​​the first sub-opening 161 on the substrate 1 is the tenth ratio; the ratio of the projected area of ​​the second packaging unit 82 on the substrate 1 to the perimeter of the projected area of ​​the second sub-opening 162 on the substrate 1 is the eleventh ratio; and the ratio of the projected area of ​​the third packaging unit 83 on the substrate 1 to the perimeter of the projected area of ​​the third sub-opening 163 on the substrate 1 is the twelfth ratio. The tenth ratio is less than or equal to the sum of the eleventh and twelfth ratios. This further improves the stability of the first packaging unit 81, the second packaging unit 82, and the third packaging unit 83.

[0121] Preferably, as shown in FIG16, the isolation structure 7 further includes a third isolation portion 73 located on the side of the first isolation portion 71 facing the substrate 1, and the second electrode 4 of the light-emitting unit 5 is electrically connected to the third isolation portion 73.

[0122] The third isolation section 73 includes a conductive material, and the second electrode 4 corresponding to the light-emitting unit 5 extends to contact the side wall of the third isolation section 73 so as to realize the electrical connection between the second electrode 4 corresponding to the light-emitting unit 5 and the third isolation section 73.

[0123] Specifically, the material of the third isolation portion 73 includes molybdenum; and / or, the material of the first isolation portion 71 includes aluminum; and / or, the material of the second isolation portion 72 includes titanium. Thus, when the isolation structure 7 isolates the material layer of the second electrode 4 as the second electrode 4, the second electrode 4 is more easily electrically connected to the first isolation portion 71 and / or the third isolation portion 73.

[0124] The orthographic projection of the light-emitting part 3 on the substrate 1 is outside the orthographic projection of the third isolation part 73 and / or the first isolation part 71 on the substrate 1. In this way, the light-emitting part 3 does not overlap with the isolation structure 7, thereby effectively improving the crosstalk problem between the light-emitting units 5.

[0125] Preferably, the shape of the orthographic projection of the isolation opening 9 on the substrate 1 in all the above embodiments includes at least one of square and square-like shapes.

[0126] Furthermore, a square includes at least one of a rectangle and a square, and a square-like shape includes at least one of a square with a missing corner and a square with rounded corners.

[0127] Specifically, in the first embodiment, referring again to FIG1, the shape of the orthographic projection of the isolation opening 9 on the substrate 1 includes a rectangle.

[0128] In the second embodiment, please refer to FIG17, the shape of the orthographic projection of the isolation opening 9 on the substrate 1 includes a square.

[0129] In the third embodiment, please refer to FIG18, the shape of the orthographic projection of the isolation opening 9 on the substrate 1 includes a square with a notched corner.

[0130] In the fourth embodiment, please refer to FIG19, the shape of the orthographic projection of the isolation opening 9 on the substrate 1 includes a square with rounded corners.

[0131] In this way, the isolation opening 9 can be set to different shapes according to actual needs.

[0132] Furthermore, the shape of the orthographic projection of the isolation opening 9 onto the substrate 1 is rectangular. When the orthographic projection area of ​​the isolation opening 9 onto the substrate 1 is equal, the rectangular shape of the isolation opening 9 has a larger perimeter, resulting in a larger contact area between the packaging unit 8 and the isolation structure 7, thereby further improving the stability of the packaging unit 8.

[0133] Preferably, referring again to FIG16, the display panel further includes a second encapsulation layer 12 located on the side of the first encapsulation layer away from the substrate 1 and a third encapsulation layer 13 located on the side of the second encapsulation layer 12 away from the substrate 1.

[0134] Preferably, the materials of both the first encapsulation layer and the third encapsulation layer 13 include inorganic materials;

[0135] Preferably, the material of the second encapsulation layer 12 includes organic materials.

[0136] For example, the first and third encapsulation layers 13 can be formed by chemical vapor deposition (CVD), and the second encapsulation layer 12 can be formed by inkjet printing (IJP). The second and third encapsulation layers 12 and 13 can achieve a better encapsulation effect on the light-emitting unit 5, thereby further improving the encapsulation quality of the display panel.

[0137] In some possible implementations, please refer again to Figures 1 and 2. This application also provides a display panel, which includes a substrate 1, an isolation structure 7, a light-emitting unit 5, and an encapsulation unit 8.

[0138] The isolation structure 7 is located on one side of the substrate 1. The isolation structure 7 includes a first isolation portion 71 and a second isolation portion 72 stacked sequentially in a direction away from the substrate 1. The second isolation portion 72 surrounds and forms an isolation opening 9. The isolation opening 9 includes a first isolation opening 91, a second isolation opening 92 and a third isolation opening 93. The orthogonal projection area of ​​the first isolation opening 91 on the substrate 1 is larger than the orthogonal projection area of ​​the second isolation opening 92 on the substrate 1, and the orthogonal projection area of ​​the first isolation opening 91 on the substrate 1 is larger than the orthogonal projection area of ​​the third isolation opening 93 on the substrate 1.

[0139] The light-emitting unit 5 includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit. The first light-emitting unit is at least partially located within the first isolation opening 91, the second light-emitting unit is at least partially located within the second isolation opening 92, and the third light-emitting unit is at least partially located within the third isolation opening 93.

[0140] The packaging unit 8 includes a first packaging unit 81, a second packaging unit 82 and a third packaging unit 83. The first packaging unit 81 is located on the side of the first light-emitting unit away from the substrate 1, the second packaging unit 82 is located on the side of the second light-emitting unit away from the substrate 1, and the third packaging unit 83 is located on the side of the third light-emitting unit away from the substrate 1.

[0141] The ratio of the area of ​​the first packaging unit 81 to the overlap area of ​​the first packaging unit 81 with the isolation structure 7 is the fourth ratio; the ratio of the area of ​​the second packaging unit 82 to the overlap area of ​​the second packaging unit 82 with the isolation structure 7 is the fifth ratio; and the ratio of the area of ​​the third packaging unit 83 to the overlap area of ​​the third packaging unit 83 with the isolation structure 7 is the sixth ratio. The fourth ratio is less than or equal to the sum of the fifth and sixth ratios.

[0142] The first light-emitting unit, the second light-emitting unit, and the third light-emitting unit emit different colors. For example, the first light-emitting unit emits red, the second light-emitting unit emits green, and the third light-emitting unit emits blue. Typically, the projected area of ​​the first isolation opening 91 corresponding to the first light-emitting unit on the substrate 1 is larger than the projected area of ​​the second isolation opening 92 corresponding to the second light-emitting unit and the third isolation opening 93 corresponding to the third light-emitting unit on the substrate 1.

[0143] The larger the area of ​​the isolation opening 9, the larger the area of ​​the packaging unit 8 covering the isolation opening 9. Therefore, under normal circumstances, the area of ​​the first packaging unit 81 is larger than the area of ​​the second packaging unit 82 and the third packaging unit 83.

[0144] In this embodiment, the area of ​​the packaging unit 8 refers to the area of ​​the packaging unit 8 away from the substrate 1, and the overlap area between the packaging unit 8 and the isolation structure 7 mainly refers to the area of ​​the contact portion between the packaging unit 8 and the isolation structure 7. The larger the area of ​​the packaging unit 8, the greater the external scouring force it receives, and the easier it is to fall off. Therefore, the external scouring force received by the third packaging unit 83 is usually greater than that received by the second packaging unit 82 and the third packaging unit 83, and the first packaging unit 81 is more likely to fall off than the second packaging unit 82 and the third packaging unit 83.

[0145] Furthermore, the larger the contact area between the packaging unit 8 and the isolation structure 7, the greater the adhesive force between the packaging unit 8 and the isolation structure 7, the better the stability of the packaging unit 8, and the less likely it is to fall off.

[0146] In summary, the stability of the packaging unit 8 is related to the contact area between the packaging unit 8 and the isolation structure 7, as well as the size of the packaging unit 8.

[0147] Through long-term research, the inventors discovered that the second encapsulation unit 82 and the third encapsulation unit 83 in the display panel have good stability and are not easily dropped by external forces. Therefore, based on the second encapsulation unit 82 and the third encapsulation unit 83, when the ratio of the area of ​​the first encapsulation unit 81 to the overlap area of ​​the first encapsulation unit 81 with the isolation structure 7 is less than or equal to the sum of the ratio of the area of ​​the second encapsulation unit 82 to the overlap area of ​​the second encapsulation unit 82 with the isolation structure 7 and the ratio of the area of ​​the third encapsulation unit 83 to the overlap area of ​​the third encapsulation unit 83 with the isolation structure 7, that is, when the fourth ratio is less than or equal to the sum of the fifth and sixth ratios, the stability of the first encapsulation unit 81 can be guaranteed. This allows the first encapsulation unit 81 to have a better encapsulation effect on the first light-emitting unit, making it less likely for the first light-emitting unit to produce dark spots, thereby improving the display effect of the display panel.

[0148] In some possible implementations, the fourth ratio is greater than the fifth ratio, and the fourth ratio is greater than the sixth ratio.

[0149] Preferably, the fourth ratio is less than or equal to 50, the fifth ratio is less than or equal to 50, and the sixth ratio is less than or equal to 50. For example, the fourth, fifth, and sixth ratios can all be 50, 45, 40, 35, 30, 25, 20, or 15, etc. This can improve the stability of the packaging unit 8 and make it less likely for the packaging unit 8 to fall off.

[0150] Furthermore, the fourth ratio is less than or equal to 35, the fifth ratio is less than or equal to 35, and the sixth ratio is less than or equal to 35. For example, the fourth, fifth, and sixth ratios can all be 35, 30, 25, 20, or 15, etc. This improves the stability of the packaging unit 8, making it less likely to fall off.

[0151] Preferably, the ratio of the projected area of ​​the first packaging unit 81 on the substrate 1 to the overlap area of ​​the first packaging unit 81 with the isolation structure 7 is the seventh ratio, the ratio of the projected area of ​​the second packaging unit 82 on the substrate 1 to the overlap area of ​​the second packaging unit 82 with the isolation structure 7 is the eighth ratio, and the ratio of the projected area of ​​the third packaging unit 83 on the substrate 1 to the overlap area of ​​the third packaging unit 83 with the isolation structure 7 is the ninth ratio, and the seventh ratio is less than or equal to the sum of the eighth ratio and the ninth ratio.

[0152] Based on the above analysis, the stability of the encapsulation unit 8 is related to the contact area between the encapsulation unit 8 and the isolation structure 7, as well as the size of the orthogonal projection area of ​​the encapsulation unit 8 on the substrate 1. When the seventh ratio is less than or equal to the sum of the eighth and ninth ratios, the stability of the first encapsulation unit 81 can be improved, making it less likely for the first encapsulation unit 81 to fall off. The first encapsulation unit 81 can provide a better encapsulation effect for the first light-emitting unit, making it less likely for the first light-emitting unit to generate dark spots, thereby improving the display effect of the display panel.

[0153] Preferably, the seventh ratio is greater than the eighth ratio, and the seventh ratio is greater than the ninth ratio.

[0154] The remaining technical solutions of the display panel in this embodiment are the same as those in the above embodiments, and will not be repeated here.

[0155] In some possible implementations, please refer again to Figures 1 and 2. This application also provides a display panel, which includes a substrate 1, an isolation structure 7, a light-emitting unit 5, and an encapsulation unit 8.

[0156] The isolation structure 7 is located on one side of the substrate 1. The isolation structure 7 includes a first isolation portion 71 and a second isolation portion 72 stacked sequentially in a direction away from the substrate 1. The second isolation portion 72 surrounds and forms an isolation opening 9.

[0157] At least a portion of the light-emitting unit 5 is located within the isolation opening 9; the encapsulation unit 8 is located on the side of the light-emitting unit 5 away from the substrate 1.

[0158] The ratio of the orthographic projection area of ​​the packaging unit 8 on the substrate 1 to the perimeter of the orthographic projection of the corresponding isolation opening 9 on the substrate 1 is less than or equal to 50. The orthographic projection of the isolation opening 91 on the substrate 1 refers to the opening formed by the orthographic projection of the isolation structure 7 corresponding to the isolation opening 9 on the substrate 1.

[0159] The first light-emitting unit, the second light-emitting unit, and the third light-emitting unit emit different colors. For example, the first light-emitting unit emits red, the second light-emitting unit emits green, and the third light-emitting unit emits blue. Typically, the projected area of ​​the first isolation opening 91 corresponding to the first light-emitting unit on the substrate 1 is larger than the projected area of ​​the second isolation opening 92 corresponding to the second light-emitting unit and the third isolation opening 93 corresponding to the third light-emitting unit on the substrate 1.

[0160] The larger the area of ​​the isolation opening 9, the larger the area of ​​the packaging unit 8 covering the isolation opening 9. Therefore, under normal circumstances, the orthographic projection area of ​​the first packaging unit 81 on the substrate 1 is greater than the orthographic projection area of ​​the second packaging unit 82 and the third packaging unit 83 on the substrate 1.

[0161] The larger the area of ​​the packaging unit 8, the greater the external scouring force it is subjected to, and the easier it is to fall off. Therefore, the external scouring force on the third packaging unit 83 is usually greater than that on the second packaging unit 82 and the third packaging unit 83. The first packaging unit 81 is more likely to fall off than the second packaging unit 82 and the third packaging unit 83.

[0162] Furthermore, the larger the perimeter of the orthographic projection of the isolation opening 9 onto the substrate 1, the larger the contact area between the packaging unit 8 and the isolation structure 7, the greater the adhesive force between the packaging unit 8 and the isolation structure 7, and the less likely the packaging unit 8 is to fall off.

[0163] In summary, the stability of the packaging unit 8 is related to the perimeter of the orthographic projection of the isolation opening 9 onto the substrate 1, and the size of the area of ​​the orthographic projection of the packaging unit 8 onto the substrate 1.

[0164] Through long-term research, the inventors discovered that when the ratio of the orthographic projection area of ​​the encapsulation unit 8 on the substrate 1 to the perimeter of the orthographic projection of the isolation opening 9 corresponding to the encapsulation unit 8 on the substrate 1 is less than or equal to 50 (for example, the ratio can be 50, 45, 40, 35, 30, 25, 20 or 15, etc.), the encapsulation unit 8 is less likely to fall off, thereby improving the encapsulation effect of the first encapsulation unit 81 on the first light-emitting unit, and thus improving the display effect of the display panel.

[0165] In some possible implementations, the ratio of the orthographic projection area of ​​the packaging unit 8 on the substrate 1 to the perimeter of the orthographic projection of the corresponding isolation opening 9 on the substrate 1 is less than or equal to 35. For example, this ratio can be 35, 33, 30, 28, 25, 23, 20, 17, or 15, which can further improve the stability of the packaging unit 8.

[0166] Preferably, at least a portion of the encapsulation unit 8 extends from the side of the isolation structure 7 toward the isolation opening 9 to the side of the isolation structure 7 away from the substrate 1. The encapsulation unit 8 includes an edge portion 802 and an encapsulation portion 801 connected to each other. The edge portion 802 is located on the side of the isolation structure 7 away from the substrate 1, and the encapsulation portion 801 is located within the isolation opening 9. The ratio of the orthographic projection area of ​​the encapsulation portion 801 on the substrate 1 to the perimeter of the orthographic projection of the corresponding isolation opening 9 on the substrate 1 is less than or equal to 45. For example, this ratio can be 45, 40, 35, 30, 25, 20, or 15, etc. Setting this ratio appropriately can improve the stability of the encapsulation unit 8 and make it less likely for the encapsulation unit 8 to fall off.

[0167] The edge-covering portion 802 and the encapsulation portion 801 are integrally formed. The orthographic projection of the encapsulation portion 801 on the substrate 1 covers the orthographic projection of the corresponding light-emitting unit 5 on the substrate 1. The encapsulation portion 801 is the effective encapsulation portion of the light-emitting unit 5.

[0168] Preferably, the ratio of the orthographic projection area of ​​the package portion 801 on the substrate 1 to the perimeter of the orthographic projection of the corresponding isolation opening 9 on the substrate 1 is less than or equal to 30. For example, this ratio can be 30, 28, 25, 23, 20, 17, or 15, etc., which can further improve the stability of the package unit 8. The orthographic projection area of ​​the package portion 801 on the substrate 1 refers to the orthographic projection area of ​​the isolation opening 9 formed by the isolation structure 7 on the substrate 1.

[0169] The remaining technical solutions of the display panel in this embodiment are the same as those in the above embodiments, and will not be repeated here.

[0170] In some possible implementations, please refer again to Figures 1 and 2. This application also provides a display panel, which includes a substrate 1, a light-emitting unit 5, and an encapsulation unit 8.

[0171] The isolation structure 7 is located on one side of the substrate 1. The isolation structure 7 includes a first isolation portion 71 and a second isolation portion 72 that are stacked sequentially in a direction away from the substrate 1. The second isolation portion 72 encloses and forms an isolation opening 9.

[0172] At least a portion of the light-emitting unit 5 is located within the isolation opening 9, and the encapsulation unit 8 is located on the side of the light-emitting unit 5 away from the substrate 1.

[0173] The ratio of the area of ​​the packaging unit 8 to the overlap area of ​​the packaging unit 8 with the isolation structure 7 is less than or equal to 50.

[0174] The first light-emitting unit, the second light-emitting unit, and the third light-emitting unit emit different colors. For example, the first light-emitting unit emits red, the second light-emitting unit emits green, and the third light-emitting unit emits blue. Typically, the projected area of ​​the first isolation opening 91 corresponding to the first light-emitting unit on the substrate 1 is larger than the projected area of ​​the second isolation opening 92 corresponding to the second light-emitting unit and the third isolation opening 93 corresponding to the third light-emitting unit on the substrate 1.

[0175] The larger the area of ​​the isolation opening 9, the larger the area of ​​the packaging unit 8 covering the isolation opening 9. Therefore, under normal circumstances, the orthographic projection area of ​​the first packaging unit 81 on the substrate 1 is greater than the orthographic projection area of ​​the second packaging unit 82 and the third packaging unit 83 on the substrate 1.

[0176] The larger the area of ​​the packaging unit 8, the greater the external scouring force it is subjected to, and the easier it is to fall off. Therefore, the external scouring force on the third packaging unit 83 is usually greater than that on the second packaging unit 82 and the third packaging unit 83. The first packaging unit 81 is more likely to fall off than the second packaging unit 82 and the third packaging unit 83.

[0177] Furthermore, the larger the contact area between the packaging unit 8 and the isolation structure 7, the greater the adhesive force between the packaging unit 8 and the isolation structure 7, and the less likely the packaging unit 8 is to fall off.

[0178] In summary, the stability of the packaging unit 8 is related to the contact area of ​​the isolation structure 7 and the size of the packaging unit 8.

[0179] Through long-term research, the inventors discovered that when the ratio of the area of ​​the encapsulation unit 8 to the overlap area of ​​the encapsulation unit 8 with the isolation structure 7 is less than or equal to 50 (for example, the ratio can be 50, 45, 40, 35, 30, 25, 20 or 15, etc.), the encapsulation unit 8 is less likely to fall off, thereby improving the encapsulation effect of the first encapsulation unit 81 on the first light-emitting unit, and thus improving the display effect of the display panel.

[0180] In some possible implementations, the ratio of the area of ​​the packaging unit 8 to the overlap area of ​​the packaging unit 8 with the isolation structure 7 is less than or equal to 35; for example, the ratio can be 35, 33, 30, 28, 25, 23, 20, 17 or 15, etc., which can further improve the stability of the packaging unit 8.

[0181] Preferably, at least a portion of the encapsulation unit 8 extends from the side of the isolation structure 7 toward the isolation opening 9 to the side of the isolation structure 7 away from the substrate 1. The encapsulation unit 8 includes an edge portion 802 and an encapsulation portion 801 connected to each other. The edge portion 802 is located on the side of the isolation structure 7 away from the substrate 1, and the encapsulation portion 801 is located within the isolation opening 9. The ratio of the area of ​​the encapsulation portion 801 to the overlap area of ​​the encapsulation portion 801 with the isolation structure 7 is less than or equal to 45. For example, this ratio can be 45, 40, 35, 30, 25, 20, or 15, etc., which can further improve the stability of the encapsulation unit 8.

[0182] Preferably, the ratio of the area of ​​the encapsulation portion 801 to the overlap area of ​​the encapsulation portion 801 with the isolation structure 7 is less than or equal to 30. For example, this ratio can be 30, 28, 25, 23, 20, 17 or 15, etc., which can further improve the stability of the encapsulation unit 8.

[0183] Preferably, in the same packaging unit 8, the ratio of the area of ​​the packaging portion 801 to the area of ​​the edge portion 802 is less than or equal to 10. For example, this ratio can be 10, 8, 5, 3 or 2, etc., which can further improve the stability of the packaging unit 8.

[0184] The remaining technical solutions of the display panel in this embodiment are the same as those in the above embodiments, and will not be repeated here.

[0185] In some possible implementations, please refer to Figure 20. This application also provides a method for manufacturing a display panel, which includes the following steps.

[0186] S10: Provides a substrate.

[0187] S11: An isolation structure is formed on one side of the substrate. The isolation structure encloses an isolation opening. The isolation opening includes a first isolation opening, a second isolation opening, and a third isolation opening. The orthogonal projection area of ​​the first isolation opening on the substrate is greater than the orthogonal projection area of ​​the second isolation opening on the substrate, and the orthogonal projection area of ​​the first isolation opening on the substrate is greater than the orthogonal projection area of ​​the third isolation opening on the substrate.

[0188] S12: A light-emitting unit is formed within the isolation opening. The light-emitting unit includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit. The first light-emitting unit is at least partially located within the first isolation opening, the second light-emitting unit is at least partially located within the second isolation opening, and the third light-emitting unit is at least partially located within the third isolation opening.

[0189] S13: A packaging unit is formed on the side of the light-emitting unit away from the substrate. The packaging unit includes a first packaging unit, a second packaging unit and a third packaging unit. The first packaging unit is located on the side of the first light-emitting unit away from the substrate, the second packaging unit is located on the side of the second light-emitting unit away from the substrate, and the third packaging unit is located on the side of the third light-emitting unit away from the substrate.

[0190] The ratio of the orthographic projection area of ​​the first packaging unit 81 on the substrate 1 to the perimeter of the orthographic projection of the first isolation opening 91 on the substrate 1 is the first ratio; the ratio of the orthographic projection area of ​​the second packaging unit 82 on the substrate 1 to the perimeter of the orthographic projection of the second isolation opening 92 on the substrate 1 is the second ratio; and the ratio of the orthographic projection area of ​​the third packaging unit 83 on the substrate 1 to the perimeter of the orthographic projection of the third isolation opening 93 on the substrate 1 is the third ratio. The first ratio is less than or equal to the sum of the second and third ratios.

[0191] The first light-emitting unit, the second light-emitting unit, and the third light-emitting unit in the display panel formed by the above method have different light-emitting colors. For example, the light-emitting color of the first light-emitting unit includes red, the light-emitting color of the second light-emitting unit includes green, and the light-emitting color of the third light-emitting unit includes blue. Under normal circumstances, the orthogonal projection area of ​​the first isolation opening 91 corresponding to the first light-emitting unit on the substrate 1 is larger than the orthogonal projection area of ​​the second isolation opening 92 corresponding to the second light-emitting unit and the third isolation opening 93 corresponding to the third light-emitting unit on the substrate 1.

[0192] The larger the area of ​​the isolation opening 9, the larger the area of ​​the packaging unit 8 covering the isolation opening 9. Therefore, under normal circumstances, the orthographic projection area of ​​the first packaging unit 81 on the substrate 1 is greater than the orthographic projection area of ​​the second packaging unit 82 and the third packaging unit 83 on the substrate 1.

[0193] The larger the area of ​​the packaging unit 8, the greater the external scouring force it is subjected to, and the easier it is to fall off. Therefore, the external scouring force on the third packaging unit 83 is usually greater than that on the second packaging unit 82 and the third packaging unit 83. The first packaging unit 81 is more likely to fall off than the second packaging unit 82 and the third packaging unit 83.

[0194] Furthermore, the larger the perimeter of the orthographic projection of the isolation opening 9 onto the substrate 1, the larger the contact area between the packaging unit 8 and the isolation structure 7, the greater the adhesive force between the packaging unit 8 and the isolation structure 7, and the less likely the packaging unit 8 is to fall off.

[0195] In summary, the stability of the packaging unit 8 is related to the perimeter of the orthographic projection of the isolation opening 9 onto the substrate 1, and the size of the area of ​​the orthographic projection of the packaging unit 8 onto the substrate 1.

[0196] Through long-term research, the inventors discovered that the second encapsulation unit 82 and the third encapsulation unit 83 in the display panel have good stability and are not easily dropped by external forces. Therefore, based on the second encapsulation unit 82 and the third encapsulation unit 83, when the first ratio is equal to the sum of the second ratio and the third ratio, the stability of the first encapsulation unit 81 can be guaranteed. This allows the first encapsulation unit 81 to have a better encapsulation effect on the first light-emitting unit, making it less likely for the first light-emitting unit to produce dark spots, thereby improving the display effect of the display panel.

[0197] In some possible implementations, the step of forming the isolation structure 7 on one side of the substrate 1 includes:

[0198] Please refer to Figure 21. A pixel defining material layer 14 and an isolation material layer 15 are sequentially formed on one side of the substrate 1.

[0199] Please refer to Figure 22. The isolation material layer 15 and the pixel defining material layer 14 are patterned sequentially to form the isolation structure 7, the reinforcing block 11 and the pixel defining layer 6, respectively. The reinforcing block 11 is located inside the isolation opening 9, and the encapsulation unit 8 is in contact with the reinforcing block 11.

[0200] By using the above method, the first reinforcing part 111 is formed at the same time as the pixel defining layer 6, and the second reinforcing part 112 is formed at the same time as the isolation structure 7. Therefore, it is not necessary to set up a process for forming the first reinforcing part 111 and the second reinforcing part 112, thereby reducing the process cost of forming the reinforcing block 11.

[0201] In some possible embodiments, this application also provides a display device, which includes the display panel described in this application, or a display panel prepared by the method described in this application. This display device may include a device with image processing capabilities, such as a server, personal computer, laptop computer, etc. Because this display device includes the display panel described in this application, the display quality of this display device is better.

[0202] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0203] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A display panel, comprising: substrate; An isolation structure is located on one side of the substrate. The isolation structure encloses and forms an isolation opening. The isolation opening includes a first isolation opening, a second isolation opening, and a third isolation opening. The orthographic projection area of ​​the first isolation opening on the substrate is greater than the orthographic projection area of ​​the second isolation opening on the substrate, and the orthographic projection area of ​​the first isolation opening on the substrate is greater than the orthographic projection area of ​​the third isolation opening on the substrate. The light-emitting unit includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit, wherein the first light-emitting unit is at least partially located within the first isolation opening, the second light-emitting unit is at least partially located within the second isolation opening, and the third light-emitting unit is at least partially located within the third isolation opening; The packaging unit includes a first packaging unit, a second packaging unit, and a third packaging unit. The first packaging unit is located on the side of the first light-emitting unit away from the substrate, the second packaging unit is located on the side of the second light-emitting unit away from the substrate, and the third packaging unit is located on the side of the third light-emitting unit away from the substrate. Wherein, the ratio of the orthographic projection area of ​​the first packaging unit on the substrate to the perimeter of the orthographic projection of the first isolation opening on the substrate is a first ratio, the ratio of the orthographic projection area of ​​the second packaging unit on the substrate to the perimeter of the orthographic projection of the second isolation opening on the substrate is a second ratio, and the ratio of the orthographic projection area of ​​the third packaging unit on the substrate to the perimeter of the orthographic projection of the third isolation opening on the substrate is a third ratio, and the first ratio is less than or equal to the sum of the second ratio and the third ratio.

2. The display panel according to claim 1, wherein, The ratio of the orthographic projection area of ​​the packaging unit on the substrate to the perimeter of the orthographic projection of the isolation opening corresponding to the packaging unit on the substrate is less than or equal to 50.

3. The display panel according to claim 2, wherein, At least a portion of the encapsulation unit extends from the side of the isolation structure toward the isolation opening to the side of the isolation structure away from the substrate. The encapsulation unit includes an edge portion and an encapsulation portion connected to each other. The edge portion is located on the side of the isolation structure away from the substrate, and the encapsulation portion is located inside the isolation opening. The ratio of the orthographic projection area of ​​the encapsulation portion on the substrate to the perimeter of the orthographic projection of the isolation opening corresponding to the encapsulation portion on the substrate is less than or equal to 45. There is a gap between the side of the edge portion near the substrate and the side of the isolation structure away from the substrate; The first light-emitting unit, the second light-emitting unit, and the third light-emitting unit emit different colors; The shape of the orthographic projection of the isolation opening onto the substrate includes at least one of square and square-like shapes; The square includes at least one of rectangle and square, and the square-like structure includes at least one of square with missing corner and square with rounded corner.

4. The display panel according to any one of claims 1 to 3, wherein, The first ratio is greater than the second ratio, and the first ratio is greater than the third ratio.

5. The display panel according to any one of claims 1 to 4, wherein, The isolation opening includes at least two isolation sub-openings, the light-emitting unit includes at least two light-emitting sub-units, the light-emitting sub-units are located inside the isolation sub-openings, and the encapsulation unit covers a plurality of the light-emitting sub-units located in the same isolation opening and contacts the isolation structure located between two adjacent isolation sub-openings; The packaging unit includes a packaging sub-part located within the isolator opening. The ratio of the orthographic projection area of ​​the packaging sub-part on the substrate to the perimeter of the orthographic projection of the isolator opening corresponding to the packaging sub-part on the substrate is less than or equal to 45. The encapsulation unit covers the isolation structure located between two adjacent isolation sub-openings; The width of the orthographic projection of the isolation structure between two adjacent isolation sub-openings on the substrate is greater than or equal to 3 μm and less than or equal to 6 μm; The light-emitting sub-units located within the same isolation opening emit the same color; The shape of the orthographic projection of the isolator opening on the substrate includes at least one of rectangle and square.

6. The display panel according to claim 5, wherein, The light-emitting unit includes a first electrode, a light-emitting part, and a second electrode that are sequentially stacked along a direction away from the substrate, and the second electrode is electrically connected to the first isolation part. The light-emitting part includes a plurality of light-emitting sub-parts arranged at intervals, the second electrode includes a plurality of second sub-electrodes arranged at intervals, the light-emitting sub-unit includes the light-emitting sub-parts and the second sub-electrodes, and a plurality of light-emitting sub-units located in the same isolation opening share a first electrode; or, the first electrode includes a plurality of first sub-electrodes arranged at intervals, and the light-emitting sub-unit includes the first sub-electrodes; The substrate includes a substrate and a conductive layer and an insulating layer stacked sequentially on one side of the substrate. The insulating layer has a plurality of vias penetrating the insulating layer. The first sub-electrode is electrically connected to the conductive layer through the vias. The first isolation opening includes at least two first isolation sub-openings, and the first light-emitting unit includes at least two first light-emitting sub-units, with the first light-emitting sub-units located within the first isolation sub-opening.

7. The display panel according to any one of claims 1 to 6, wherein, The first packaging unit includes a first edge portion located on the side of the isolation structure away from the substrate, and the second packaging unit includes a second edge portion located on the side of the isolation structure away from the substrate. Along the arrangement direction of the first isolation opening and the second isolation opening, the extension length of the first edge portion is less than the extension length of the second edge portion. The third packaging unit includes a third edge portion located on the side of the isolation structure away from the substrate. Along the arrangement direction of the first isolation opening and the third isolation opening, the extension length of the first edge portion is less than the extension length of the third edge portion. Along the arrangement direction of the first isolation opening and the second isolation opening, the extension length of the first edge portion is greater than or equal to 1 μm and less than or equal to 6 μm.

8. The display panel according to claim 7, wherein, There is a gap between the side of the first edge portion near the substrate and the side of the isolation structure away from the substrate; There is a gap between the side of the second edge portion near the substrate and the side of the isolation structure away from the substrate; There is a gap between the side of the third edge portion near the substrate and the side of the isolation structure away from the substrate; The first edge portion and the second edge portion at least partially overlap, and the first edge portion is located on the side of the second edge portion closer to the substrate; The first edge portion and the third edge portion overlap at least partially, and the first edge portion is located on the side of the third edge portion closer to the substrate.

9. The display panel according to any one of claims 1 to 8, wherein, The isolation structure has a concave-convex structure on its sidewall facing the isolation opening, and the encapsulation unit contacts the concave-convex structure; The concave-convex structure includes a first concave-convex structure, which is located on the side of the first isolation portion facing the isolation opening; The concave-convex structure includes a second concave-convex structure, which is located on the side of the second isolation portion facing the isolation opening; The first concave-convex structure is serrated; The packaging unit is interlocked with the concave-convex structure.

10. The display panel according to any one of claims 1 to 9, wherein, The display panel also includes a reinforcing block located within the isolation opening, and the encapsulation unit is in contact with the reinforcing block; The encapsulation unit extends from the sidewall of the reinforcing block toward the isolation structure to the side of the reinforcing block away from the substrate; The encapsulation unit covers the reinforcing block; The orthogonal projection of the reinforcing block on the substrate is located outside the orthogonal projection of the isolation structure on the substrate; The number of the reinforcing blocks is multiple.

11. The display panel according to claim 10, wherein, Along a direction away from the substrate, the reinforcing block includes a first reinforcing portion and a second reinforcing portion, wherein the second reinforcing portion is in the same layer as the isolation structure; The second reinforcing part has the same layer structure as the isolation structure, and each layer is made of the same material; The display panel further includes a pixel defining layer located between the substrate and the isolation structure, the pixel defining layer having pixel openings that communicate with the isolation openings; The first reinforcing part is on the same layer as the pixel defining layer; The material of the first reinforcing part is the same as the material of the pixel defining layer; The orthographic projection of the reinforcing block on the substrate is outside the orthographic projection of the pixel defining layer on the substrate.

12. The display panel according to any one of claims 1 to 11, wherein, The minimum distance between the edge of the orthographic projection of the side of the first isolation portion corresponding to the first light-emitting unit away from the substrate on the substrate and the edge of the orthographic projection of the side of the second isolation portion close to the substrate on the substrate is the first distance, and the minimum distance between the edge of the orthographic projection of the side of the first isolation portion corresponding to the second light-emitting unit away from the substrate and the edge of the orthographic projection of the side of the second isolation portion close to the substrate on the substrate is the second distance, and the first distance is greater than the second distance. The minimum distance between the edge of the orthographic projection of the side of the first isolation portion away from the substrate corresponding to the third light-emitting unit on the substrate and the edge of the orthographic projection of the side of the second isolation portion close to the substrate on the substrate is the third distance, and the first distance is greater than the third distance. The first distance is greater than or equal to 0.3 μm and less than or equal to 0.7 μm.

13. The display panel according to any one of claims 1-12, wherein, The isolation structure includes a first isolation portion and a second isolation portion stacked sequentially along a direction away from the substrate. The orthogonal projection of the side of the first isolation portion away from the substrate onto the substrate is located within the orthogonal projection of the second isolation portion onto the substrate. The second electrode of the light-emitting unit is electrically connected to the first isolation portion. The first isolation portion forms a first opening on the side away from the substrate. The first opening includes a first sub-opening, a second sub-opening, and a third sub-opening. The orthographic projection area of ​​the first sub-opening on the substrate is greater than the orthographic projection area of ​​the second sub-opening on the substrate, and the orthographic projection area of ​​the first sub-opening on the substrate is greater than the orthographic projection area of ​​the third sub-opening on the substrate. The first light-emitting unit is at least partially located in the first sub-opening, the second light-emitting unit is at least partially located in the second sub-opening, and the third light-emitting unit is at least partially located in the third sub-opening.

14. The display panel according to claim 13, wherein, The ratio of the orthographic projection area of ​​the first packaging unit on the substrate to the perimeter of the orthographic projection of the first sub-opening on the substrate is the tenth ratio; the ratio of the orthographic projection area of ​​the second packaging unit on the substrate to the perimeter of the orthographic projection of the second sub-opening on the substrate is the eleventh ratio; the ratio of the orthographic projection area of ​​the third packaging unit on the substrate to the perimeter of the orthographic projection of the third sub-opening on the substrate is the twelfth ratio; and the tenth ratio is less than or equal to the sum of the eleventh ratio and the twelfth ratio. The isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate, and the second electrode of the light-emitting unit is electrically connected to the third isolation portion; The material of the third isolation part includes molybdenum; the material of the first isolation part includes aluminum; and the material of the second isolation part includes titanium. The display panel further includes a second encapsulation layer located on the side of the first encapsulation layer away from the substrate and a third encapsulation layer located on the side of the second encapsulation layer away from the substrate; Both the first encapsulation layer and the third encapsulation layer are made of inorganic materials; The material of the second encapsulation layer includes organic materials.

15. A display panel, comprising: substrate; An isolation structure is located on one side of the substrate. The isolation structure includes a first isolation portion and a second isolation portion stacked sequentially in a direction away from the substrate. The second isolation portion encloses and forms an isolation opening. The isolation opening includes a first isolation opening, a second isolation opening, and a third isolation opening. The orthographic projection area of ​​the first isolation opening on the substrate is larger than the orthographic projection area of ​​the second isolation opening on the substrate, and the orthographic projection area of ​​the first isolation opening on the substrate is larger than the orthographic projection area of ​​the third isolation opening on the substrate. The light-emitting unit includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit, wherein the first light-emitting unit is at least partially located within the first isolation opening, the second light-emitting unit is at least partially located within the second isolation opening, and the third light-emitting unit is at least partially located within the third isolation opening; The packaging unit includes a first packaging unit, a second packaging unit, and a third packaging unit. The first packaging unit is located on the side of the first light-emitting unit away from the substrate, the second packaging unit is located on the side of the second light-emitting unit away from the substrate, and the third packaging unit is located on the side of the third light-emitting unit away from the substrate. Wherein, the ratio of the area of ​​the first packaging unit to the overlap area of ​​the first packaging unit with the isolation structure is the fourth ratio, the ratio of the area of ​​the second packaging unit to the overlap area of ​​the second packaging unit with the isolation structure is the fifth ratio, the ratio of the area of ​​the third packaging unit to the overlap area of ​​the third packaging unit with the isolation structure is the sixth ratio, and the fourth ratio is less than or equal to the sum of the fifth ratio and the sixth ratio.

16. The display panel according to claim 15, wherein, The fourth ratio is greater than the fifth ratio, and the fourth ratio is greater than the sixth ratio; The fourth ratio is less than or equal to 50, the fifth ratio is less than or equal to 50, and the sixth ratio is less than or equal to 50; The ratio of the projected area of ​​the first packaging unit on the substrate to the overlap area of ​​the first packaging unit with the isolation structure is the seventh ratio; the ratio of the projected area of ​​the second packaging unit on the substrate to the overlap area of ​​the second packaging unit with the isolation structure is the eighth ratio; the ratio of the projected area of ​​the third packaging unit on the substrate to the overlap area of ​​the third packaging unit with the isolation structure is the ninth ratio; and the seventh ratio is less than or equal to the sum of the eighth ratio and the ninth ratio. The seventh ratio is greater than the eighth ratio, and the seventh ratio is greater than the ninth ratio.

17. The display panel according to claim 15 or 16, wherein, The isolation structure has a concave-convex structure on its sidewall facing the isolation opening, and the encapsulation unit contacts the concave-convex structure; The concave-convex structure includes a first concave-convex structure, which is located on the side of the first isolation portion facing the isolation opening; The concave-convex structure includes a second concave-convex structure, which is located on the side of the second isolation portion facing the isolation opening; The first concave-convex structure is serrated; The packaging unit is interlocked with the concave-convex structure.

18. The display panel according to any one of claims 15 to 17, wherein, The display panel also includes a reinforcing block located within the isolation opening, and the encapsulation unit is in contact with the reinforcing block; The encapsulation unit extends from the sidewall of the reinforcing block toward the isolation structure to the side of the reinforcing block away from the substrate; The encapsulation unit covers the reinforcing block; The orthogonal projection of the reinforcing block on the substrate is located outside the orthogonal projection of the isolation structure on the substrate; The number of the reinforcing blocks is multiple.

19. The display panel according to claim 18, wherein, Along a direction away from the substrate, the reinforcing block includes a first reinforcing portion and a second reinforcing portion, wherein the second reinforcing portion is in the same layer as the isolation structure; The second reinforcing part has the same layer structure as the isolation structure, and each layer is made of the same material; The display panel further includes a pixel defining layer located between the substrate and the isolation structure, the pixel defining layer having pixel openings that communicate with the isolation openings; The first reinforcing part is on the same layer as the pixel defining layer; The material of the first reinforcing part is the same as the material of the pixel defining layer; The orthographic projection of the reinforcing block on the substrate is outside the orthographic projection of the pixel defining layer on the substrate.

20. A display device comprising a display panel according to any one of claims 1-19.

Images