Display panel

Abstract

Embodiments of the present application disclose a display panel. The display panel comprises a pixel definition layer, a coating layer, and a light-emitting layer. The pixel definition layer comprises a black material, an opening is formed on the pixel definition layer, and the opening exposes a pixel electrode. The coating layer covers the side of the pixel electrode away from a substrate and is disposed in the opening, and the coating layer at least covers the edge area of the pixel electrode exposed by the opening. The light-emitting layer is disposed in the opening and covers the coating layer.

Description

Display panel Technical Field

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

[0002] In an organic light-emitting diode (OLED) panel, the red, green, and blue resists correspond to the light output of the red, green, and blue sub-pixels in the light-emitting layer, respectively; the black matrix prevents light leakage and reduces reflection from the panel. To match PLP technology and achieve a low-reflectivity design, a black material is introduced into the pixel-defining layer. This material, which contains pigments, dyes, or carbon black, has a light-absorbing effect. During the manufacturing process, the pixel-defining layer containing black material is typically patterned directly using a photolithography process. Due to the black material's tendency to aggregate and its high adhesion to the anode interface, it is prone to residue on the anode sub-pixel area. When the light-emitting layer is evaporated, the light-emitting layer is easily punctured by the black material residue, causing sub-pixel degradation. SUMMARY OF THE INVENTION

[0003] The embodiments of the present application provide a display panel that can reduce the risk of a light-emitting layer being punctured by black residues.

[0004] An embodiment of the present application provides a display panel, comprising:

[0005] substrate;

[0006] a pixel electrode, the pixel electrode being disposed on the substrate;

[0007] a pixel definition layer, the pixel definition layer covering a side of the pixel electrode away from the substrate, the pixel definition layer comprising a black material, and having an opening formed therein, the opening exposing the pixel electrode;

[0008] a covering layer, the covering layer covering a side of the pixel electrode away from the substrate and disposed in the opening, the covering layer at least covering an edge region of the pixel electrode exposed by the opening; and

[0009] A light-emitting layer is disposed in the opening and covers the cladding layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG1 is a schematic structural diagram of a display panel provided in an embodiment of the present application;

[0011] FIG2 is another schematic structural diagram of a display panel provided in an embodiment of the present application;

[0012] FIG3 is another structural schematic diagram of a display panel provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device; the terms "first", "second", "third", etc. are used only as labels and do not impose numerical requirements or establish an order.

[0014] The present application provides a display panel, which is described in detail below. It should be noted that the order of description of the following embodiments does not limit the preferred order of the embodiments.

[0015] An embodiment of the present application provides a display panel, comprising:

[0016] substrate;

[0017] a pixel electrode, the pixel electrode being disposed on the substrate;

[0018] a pixel definition layer, the pixel definition layer covering a side of the pixel electrode away from the substrate, the pixel definition layer comprising a black material, and having an opening formed therein, the opening exposing the pixel electrode;

[0019] a covering layer, the covering layer covering a side of the pixel electrode away from the substrate and disposed in the opening, the covering layer at least covering an edge region of the pixel electrode exposed by the opening; and

[0020] A light-emitting layer is disposed in the opening and covers the cladding layer.

[0021] Optionally, in some embodiments of the present application, the thickness of the pixel definition layer is between 0.8 microns and 2 microns.

[0022] Optionally, in some embodiments of the present application, the Young's modulus of the coating layer is between 2 GPa and 10 GPa.

[0023] Optionally, in some embodiments of the present application, the pixel definition layer includes an opening forming portion forming a sidewall of the opening and a flat portion adjacent to the opening forming portion, wherein the flat portion has a flatter surface than the opening forming portion, and the flat portion is disposed on a side of the opening forming portion away from the opening;

[0024] The covering layer includes a covering portion formed in the opening and a supporting portion formed above the flat portion, wherein the covering portion at least covers a side of the opening forming portion close to the pixel electrode, and the supporting portion has a convex surface.

[0025] Optionally, in some embodiments of the present application, in the opening area, the distance between the edge of the covering portion and the edge of the opening forming portion is less than or equal to 5 microns.

[0026] Optionally, in some embodiments of the present application, the coating layer continuously covers the surface of the pixel definition layer.

[0027] Optionally, in some embodiments of the present application, the covering layer further includes a connecting portion, the connecting portion is connected to the supporting portion and covers the flat portion, and the connecting portion is separated from the covering portion.

[0028] Optionally, in some embodiments of the present application, the thickness of the coating layer is less than or equal to 0.2 microns.

[0029] Optionally, in some embodiments of the present application, both the covering layer and the pixel definition layer include organic photosensitive materials, and the covering layer is a transparent film layer.

[0030] Optionally, in some embodiments of the present application, in a plane perpendicular to the surface of the display panel, the width of the covering portion decreases from the side of the covering portion close to the pixel electrode to the side of the covering portion away from the pixel electrode.

[0031] Optionally, in some embodiments of the present application, a surface of the covering portion away from the pixel definition layer is a convex surface.

[0032] Optionally, in some embodiments of the present application, the display panel further includes an isolation layer, the isolation layer covering a surface of the pixel electrode layer away from the substrate, the opening exposing at least a portion of the isolation layer, the isolation layer being connected to the pixel definition layer, and the isolation layer being used to separate the black material and the pixel electrode;

[0033] The adhesion of the black material to the isolation layer is smaller than the adhesion of the black material to the pixel electrode.

[0034] The display panel of the embodiment of the present application is provided with a covering layer in the opening area of ​​the patterned black pixel definition layer. The covering layer at least covers the edge area of ​​the pixel electrode exposed by the opening to wrap the black residue remaining in the opening (the black material provided in the pixel definition layer), so that when the light-emitting layer is formed in the opening, the risk of the light-emitting layer being punctured by the black residue can be reduced.

[0035] 1 , an embodiment of the present application provides a display panel 100 , which includes a substrate 11 , a pixel electrode 12 , a pixel definition layer 13 , a cladding layer bf1 , and a light-emitting layer 14 .

[0036] The pixel electrode 12 is disposed on the substrate 11. The pixel definition layer 13 covers the side of the pixel electrode 12 away from the substrate 11. The pixel definition layer 13 comprises a black material. An opening 13a is formed in the pixel definition layer 13. The opening 13a exposes the pixel electrode 12.

[0037] The cladding layer bf1 covers the side of the pixel electrode 12 away from the substrate 11 and is disposed within the opening 13a. The cladding layer bf1 covers at least the edge of the pixel electrode 12 exposed by the opening 13a, thereby encapsulating the black material exposed within the opening 13a. The light-emitting layer 14 is disposed within the opening 13a and covers the cladding layer bf1.

[0038] Alternatively, the pixel definition layer 13 may be formed to include resin, such as polyacrylate or polyimide, silica-based organic materials, etc. Black materials include but are not limited to pigments, dyes, carbon black, and other materials with light absorption properties.

[0039] In the pixel definition layer 13 , a black material is mixed with an organic photosensitive material to form a black organic photosensitive material. The black organic photosensitive material is then formed on the substrate 11 and patterned using a photolithography process to form the pixel definition layer 13 .

[0040] Optionally, the thickness of the pixel definition layer 13 is between 0.8 microns and 2 microns, for example, it can be 0.8 microns, 0.9 microns, 1 micron, 1.1 microns, 1.2 microns, 1.3 microns, 1.4 microns, 1.5 microns, 1.6 microns, 1.7 microns, 1.8 microns, 1.9 microns or 2 microns.

[0041] If the thickness of the pixel definition layer 13 is thinner, the light absorption effect is weaker. If the thickness of the pixel definition layer 13 is too thick, the process efficiency is lower, the depth of the opening 13a is deeper, and it is more difficult to fill the organic encapsulation layer.

[0042] Therefore, the thickness of the pixel definition layer 13 is limited to meet the requirements of light absorption effect, process and packaging, and can also reduce the total amount of black material to a certain extent, thereby reducing the amount of black residue cl. The black material remaining in the opening 13a is generally referred to as black residue cl.

[0043] It should be understood that during the process of forming the pixel definition layer, since the black material easily aggregates and has high adhesion to the interface with the pixel electrode, the black material easily remains on the exposed surface of the pixel electrode in the edge area around the pixel opening.

[0044] In the display panel 100 of the present embodiment, a coating layer bf1 is disposed in the opening 13a region of the patterned black pixel definition layer 13. The coating layer bf1 is used to encapsulate the black residue cl remaining within the opening 13a (the black material exposed within the opening 13a). This reduces the risk of the black residue cl puncturing the light-emitting layer 14 when the light-emitting layer 14 is formed within the opening 13a.

[0045] Optionally, the coating layer bf1 covers the peripheral edge areas of the opening 13 a and is connected to the sidewall surfaces of the opening 13 a.

[0046] Optionally, the material of the coating layer bf1 has leveling properties to better wrap the black residue cl. Due to the leveling properties of the coating layer bf1, the coating layer bf1 can better reduce or even eliminate the height of the black residue cl, thereby reducing the risk of puncturing the light-emitting layer 14.

[0047] The coating layer bf1 can be formed from a resin, such as polyacrylate, polyimide, or a silica-based organic material. In this embodiment, the coating layer bf1 comprises an organic photosensitive material, facilitating direct photolithography to form a patterned coating layer bf1. The coating layer bf1 is a transparent film layer and does not contain any black material.

[0048] Optionally, the Young's modulus of the coating layer bf1 is between 2 GPa and 10 GPa. For example, the Young's modulus of the coating layer bg1 may be 2 GPa, 3 GPa, 4 GPa, 5 GPa, 6 GPa, 7 GPa, 8 GPa, 9 GPa, or 10 GPa.

[0049] It's understood that a higher Young's modulus of a film layer reduces its ability to deform when bent or subjected to stress, resulting in greater rigidity and improved resistance to external forces. Therefore, setting the Young's modulus of coating layer bf1 between 2 GPa and 10 GPa allows the coating layer fb1 to contain the black residue cl while maintaining a high tensile stress to meet bending requirements and improving the toughness of coating layer bf1, thereby reducing the risk of the coating layer fb1 being punctured by the black residue cl.

[0050] Alternatively, the light emitting layer 14 may be formed of one organic emission layer or a plurality of layers including a hole injection layer (HIL), a hole transport layer (HTL), an organic emission layer, an electron transport layer (ETL), and an electron injection layer (EIL).

[0051] Optionally, the display panel 100 further includes a thin film transistor structure layer (TFT) and a common electrode layer (not shown). The thin film transistor structure layer (TFT) is disposed on the substrate 11, and the pixel electrode 12 is disposed on a side of the thin film transistor structure layer (TFT) away from the substrate 11. The common electrode layer covers the side of the light emitting layer 14 away from the substrate 11.

[0052] The pixel electrode 12 may be one of an anode and a cathode, and the common electrode layer may be the other of the anode and the cathode. The pixel electrode 12 may be a single layer or a multi-layer stacked structure.

[0053] In this embodiment, the pixel electrode 12 includes a reflective layer 121 and a transparent layer 122 , and the transparent layer 122 is disposed on the opposite side of the reflective layer 121 .

[0054] The thickness of the reflective layer 121 is greater than that of the transparent layer 122 , so as to improve the reflectivity of the pixel electrode 12 at the same thickness.

[0055] The reflective layer 121 may be made of one or more metals selected from magnesium, silver, gold, calcium, lithium, and aluminum, or alloys thereof. The transparent layer 122 may be made of a material such as indium tin oxide, indium zinc oxide, zinc oxide, or indium oxide.

[0056] Optionally, the pixel definition layer 13 includes an opening forming portion 131 forming a sidewall of the opening 13 a and a flat portion 132 adjacent to the opening forming portion 131 .

[0057] The coating layer bf1 includes a coating portion b1 formed in the opening 13a and a support portion b2 formed above the flat portion 132. The coating portion b1 covers at least one side of the opening forming portion 131 close to the pixel electrode 12. The support portion b2 has a convex surface.

[0058] In this embodiment, the cladding layer bf1 is used to simultaneously form the support portion b2 and the cladding portion b1 , thereby saving a photomask process.

[0059] In some embodiments, the cladding layer bf1 can also be formed by two processes, that is, the cladding portion b1 and the support portion b2 are each formed using one photomask, and in this case, the material of the cladding portion b1 can be different from that of the support portion b2.

[0060] Optionally, in the opening 13a region, a distance d1 between an edge of the covering portion b1 and an edge of the opening forming portion 131 is less than or equal to 5 micrometers. The distance d1 may be 5 micrometers, 4 micrometers, 3 micrometers, 2 micrometers, or 1 micrometer.

[0061] It can be understood that since there is no pixel definition layer 13 blocking the area below the edge of the covering portion b1 and the edge of the opening forming portion 131, the reflection intensity of light in this area is relatively large. Therefore, the distance of this area is limited to less than or equal to 5 microns to limit the reflection area of ​​this area to a smaller range, thereby reducing the reflection effect of the display panel 100 when the screen is off.

[0062] Optionally, a distance d1 between an edge of the covering portion b1 and an edge of the opening forming portion 131 is greater than or equal to 1 micrometer, so that the covering layer bf1 covers an area with more black residues cl.

[0063] Optionally, the coating layer bf1 further includes a connecting portion b3 , which is connected to the supporting portion b2 and covers the flat portion 132 .

[0064] The connecting portion b3 is connected to the supporting portion b2 and adheres to the flat portion 132 of the pixel definition layer 13 , thereby reducing the risk of the supporting portion b2 and the pixel definition layer 13 being peeled off.

[0065] Optionally, the covering portion b1 completely covers the opening forming portion 131 , and the connecting portion b3 is connected to the covering portion b1 , that is, the covering layer bf1 continuously covers the surface of the pixel definition layer 13 .

[0066] The covering portion b1 completely covers the opening forming portion 131, so that the light-emitting layer 14 has a smoother interface in the opening 13a region, improving the continuity of the light-emitting layer 14 in the opening 13a region. In addition, the risk of the covering layer bf1 peeling off is reduced, that is, the connection stability of the covering layer fb1 is improved.

[0067] Optionally, in some embodiments, referring to FIG. 2 , the covering portion b1 covers a side of the opening forming portion 131 close to the pixel electrode 12 , and the connecting portion b3 and the covering portion b1 are separated.

[0068] Compared to the embodiment in which the covering portion b1 and the connecting portion b3 are connected, the embodiment corresponding to FIG2 is only different in that the covering portion b1 and the connecting portion b3 are separated.

[0069] Among them, in the area of ​​the opening 13a, since there is only the pixel definition layer 13, after the pixel definition layer 13 is superimposed with the connecting portion b3, the depth of the opening 13a area is the thickness of the pixel definition layer 13, and the depth is relatively shallow, which facilitates the subsequent leveling of the organic encapsulation layer to fill the area of ​​the opening 13a.

[0070] Furthermore, based on the pixel electrode 12 being away from the surface of the substrate 11 , the maximum height of the covering portion b1 separated from the connecting portion b3 is smaller than the maximum height of the opening forming portion 131 , so that the depth of the opening 13a region is the thickness of the opening forming portion 131 .

[0071] Optionally, the display panel 100 further includes an organic encapsulation layer 151 covering a side of the light emitting layer 14 away from the substrate 11. The organic encapsulation layer 151 fills the opening 13a.

[0072] The thickness h1 of the covering portion b1 is less than or equal to 0.2 μm. The thickness h2 of the connecting portion b3 is greater than the thickness h1 of the covering portion b1.

[0073] The thickness h1 of the coating portion b1 is limited to be less than or equal to 0.2 μm, so as to avoid the coating portion b1 being too thick after overlapping the opening forming portion 131 , resulting in the area corresponding to the opening 13a being too deep, thereby facilitating the leveling of the organic encapsulation layer 151 to fill the opening 13a area and improve the encapsulation performance.

[0074] Optionally, the thickness h1 of the coating portion b1 may be 0.2 micrometers, 0.15 micrometers, 0.1 micrometers, or 0.05 micrometers.

[0075] The thickness h2 of the connecting portion b3 is greater than the thickness h1 of the covering portion b1, which can improve the stability of the connection with the flat portion 132. In addition, since the connecting portion b3 corresponds to the area attached to the flat portion 132, the greater thickness of the connecting portion b3 does not affect the depth of the opening 13a area.

[0076] Optionally, the thickness h2 of the connecting portion b3 is less than or equal to 1 micron, for example, it can be 1 micron, 0.9 micron, 0.8 micron, 0.7 micron, 0.6 micron, 0.5 micron, 0.4 micron, 0.3 micron or 0.2 micron.

[0077] It should be noted that the display panel 100 may further include an inorganic encapsulation layer 152, which is alternately stacked with an organic encapsulation layer 151. One inorganic encapsulation layer 152 covers the surface of the common electrode layer away from the substrate 11, the organic encapsulation layer 151 covers the surface of the inorganic encapsulation layer 152 away from the substrate 11, and another inorganic encapsulation layer 152 covers the surface of the organic encapsulation layer 151 away from the substrate 11.

[0078] Optionally, the organic encapsulation layer 151 is formed of a polymer and may be, for example, a laminate or a single layer formed of any one of polyethylene terephthalate, polyimide, polycarbonate, epoxy resin, polyethylene, and polyacrylate. The organic encapsulation layer 151 may be formed of polyacrylate, specifically including a substance obtained by polymerizing a monomer composition including a diacrylate-based monomer and a triacrylate-based monomer. The monomer composition may also include a monoacrylate-based monomer. In addition, the monomer composition may also include a well-known photoinitiator such as TPO, but the monomer composition is not limited thereto. The inorganic encapsulation layer 152 may be a laminate or a single layer including a metal oxide or a metal nitride, for example, including SiN x , Al2O3, SiO2, and TiO2.

[0079] Optionally, the thickness h1 of the covering portion b1 is greater than or equal to 0.1 micrometer, so that the covering portion b1 can wrap the black residue cl to a greater extent.

[0080] Optionally, in a plane perpendicular to the surface of the display panel 100 , the width k of the covering portion b1 decreases gradually from the side of the covering portion b1 close to the pixel electrode 12 to the side of the covering portion b1 away from the pixel electrode 12 .

[0081] The maximum width k of the covering portion b1 is the distance d1 between the edge of the covering layer bf1 and the edge of the opening forming portion 131 .

[0082] The gradually varying width covering portion b1 improves the smoothness of the opening 13 a region while meeting the requirement of covering the black residue cl, thereby facilitating the leveling of the organic encapsulation layer 151 .

[0083] Optionally, in a plane perpendicular to the surface of the display panel 100, the surface of the covering portion b1 away from the pixel definition layer 13 is a convex surface. This configuration further improves the flatness of the opening 13a region and allows the covering portion b1 to cover more black residue cl in the region at a distance d1, thereby reducing the risk of puncturing the light-emitting layer 14.

[0084] In some embodiments, the surface of the covering portion b1 away from the pixel definition layer 13 may also be an inclined surface or a concave surface.

[0085] Optionally, the display panel 100 may further include a color filter layer, which covers the side of the inorganic encapsulation layer 152 away from the substrate 11. The color filter layer includes a black matrix layer having a hollow opening formed therein, and a color resist disposed within the hollow opening. The color resist and the opening 13a are disposed in a one-to-one correspondence. In the orthographic projection pattern of the display panel 100, the distance between the center of the hollow opening and the center of the opening 13a is less than or equal to 1 micron.

[0086] Optionally, referring to FIG. 3 , in some embodiments, based on the above embodiment, the display panel 100 further includes an isolation layer 16. The isolation layer 16 covers the side of the pixel electrode 12 layer facing away from the substrate 11. The opening 13 a exposes at least a portion of the isolation layer 16. The isolation layer 16 is connected to the pixel definition layer 13. The isolation layer 16 is used to separate the black material from the pixel electrode 12.

[0087] The adhesion of the black material to the isolation layer 16 is weaker than the adhesion of the black material to the pixel electrode 12 .

[0088] The provision of the isolation layer 16 reduces the adhesion of the black material, thereby increasing the success rate of removing the residual black material during the development stage, thereby reducing the amount of black residues cl.

[0089] It should be noted that the adhesion can be measured by the hundred-grid method or the pull-off method.

[0090] Optionally, the isolation layer 16 may be made of an oleophobic material to reduce adhesion of the black material to the isolation layer 16 .

[0091] Optionally, the isolation layer 16 is fully exposed in the opening 13 a . In some embodiments, a portion of the isolation layer 16 extends between the pixel definition layer 13 and the pixel electrode 12 .

[0092] The display panel of the embodiment of the present application is provided with a covering layer in the opening area of ​​the patterned black pixel definition layer, so that the covering layer wraps the black residue remaining in the opening (the black material provided in the pixel definition layer), thereby reducing the risk of the light-emitting layer being punctured by the black residue when the light-emitting layer is formed in the opening.

[0093] The above is a detailed introduction to a display panel provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, based on the ideas of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, comprising: a substrate; a pixel electrode disposed on the substrate; a pixel definition layer covering a side of the pixel electrode away from the substrate, the pixel definition layer including a black material, an opening being formed in the pixel definition layer to expose the pixel electrode; a coating layer covering a side of the pixel electrode away from the substrate and disposed within the opening, the coating layer covering at least an edge region of the pixel electrode exposed by the opening; and a light-emitting layer disposed within the opening and covering the coating layer.

2. The display panel according to claim 1, wherein the pixel definition layer includes an opening forming portion forming a sidewall of the opening and a flat portion adjacent to the opening forming portion, the flat portion having a flatter surface than the opening forming portion, and the flat portion being disposed on a side of the opening forming portion away from the opening; the coating layer includes a coating portion formed within the opening and a support portion formed above the flat portion, the coating portion covering at least a side of the opening forming portion close to the pixel electrode, and the support portion having a convex surface.

3. The display panel according to claim 2, wherein within the opening region, a distance between an edge of the coating portion and an edge of the opening forming portion is less than or equal to 5 micrometers.

4. The display panel according to claim 2, wherein the coating layer continuously covers a surface of the pixel definition layer.

5. The display panel according to claim 2, wherein the coating layer further includes a connecting portion connected to the support portion and covering the flat portion, and the connecting portion is separated from the coating portion.

6. The display panel according to claim 4, wherein a thickness of the coating portion is less than or equal to 0.2 micrometers.

7. The display panel according to claim 6, wherein the thickness of the coating portion is greater than or equal to 0.1 micrometers.

8. The display panel according to claim 6, wherein the coating layer further includes a connecting portion connected to the coating portion, the connecting portion being connected to the support portion and covering the flat portion, and a thickness of the connecting portion is greater than a thickness of the coating portion.

9. The display panel according to claim 8, wherein the thickness of the connecting portion is less than or equal to 1 micrometer.

10. The display panel according to claim 1, wherein both the coating layer and the pixel definition layer include an organic photosensitive material, and the coating layer is a transparent film layer.

11. The display panel according to claim 1, wherein a Young's modulus of the coating layer ranges from 2 GPa to 10 GPa.

12. The display panel according to claim 2, wherein in a plane perpendicular to a plate surface of the display panel, in a direction from a side of the coating portion close to the pixel electrode to a side of the coating layer away from the pixel electrode, a width of the coating portion decreases.

13. The display panel according to claim 12, wherein a surface of the coating portion away from the pixel definition layer is a convex curved surface.

14. The display panel according to claim 2, wherein, the surface of the covering portion away from the pixel definition layer may also be an inclined surface or a concave curved surface.

15. The display panel according to claim 1, wherein, the thickness of the pixel definition layer is between 0.8 micrometers and 2 micrometers.

16. The display panel according to claim 1, wherein, the display panel includes an organic encapsulation layer and an inorganic encapsulation layer, the inorganic encapsulation layer and the organic encapsulation layer are alternately stacked, an inorganic encapsulation layer covers one side of the light-emitting layer away from the substrate, the organic encapsulation layer covers one side of the inorganic encapsulation layer away from the substrate, and the other inorganic encapsulation layer covers one side of the organic encapsulation layer away from the substrate.

17. The display panel according to claim 16, wherein, the display panel further includes a color filter layer, the color filter layer covers one side of the inorganic encapsulation layer away from the substrate, the color filter layer includes a black matrix layer, a hollow opening is formed in the black matrix layer, a color resistor is disposed in the hollow opening, the color resistors and the openings are arranged in one-to-one correspondence, and in the orthographic projection pattern of the display panel, the distance between the center of the hollow opening and the center of the opening is less than or equal to 1 micrometer.

18. The display panel according to claim 1, wherein, the pixel electrode includes a reflective layer and a transparent layer, the transparent layer is disposed on the opposite side of the reflective layer, and the thickness of the reflective layer is greater than the thickness of the transparent layer.

19. The display panel according to claim 1, wherein, the display panel further includes an isolation layer, the isolation layer covers one side of the pixel electrode layer away from the substrate, the opening exposes at least a part of the isolation layer, the isolation layer is connected to the pixel definition layer, and the isolation layer is used to separate the black material and the pixel electrode; the adhesion of the black material to the isolation layer is less than the adhesion of the black material to the pixel electrode.

20. The display panel according to claim 19, wherein, the material of the isolation layer includes an oleophobic material.

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