Display panel, preparation method of display panel and electronic equipment

Abstract

The embodiment of the invention provides a display panel, a preparation method of the display panel and electronic equipment, and relates to the technical field of display, the display panel comprises a substrate, a first electrode and a blocking part, the first electrode comprises a first electrode part and a second electrode part which are arranged in a stacked mode in the direction away from the substrate, and the blocking part is arranged on the first electrode part; the side, away from the substrate, of the second electrode part is provided with a first sunken part sunken towards the substrate, the blocking part is located on the surface, away from the substrate, of the second electrode part, and at least part of the orthographic projection of the first sunken part on the substrate is located in the orthographic projection of the blocking part on the substrate. By arranging the blocking part on the surface, away from the substrate, of the second electrode part, the risk that etching liquid medicine makes contact with the first electrode part through the first concave part can be reduced, so that the risk that the first electrode part is damaged can be reduced, the problem that a corresponding light-emitting unit generates dark spots can be solved, and the light-emitting efficiency is improved. Finally, the display effect of the display panel can be improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a display panel, a method for manufacturing the display panel, and an electronic device. Background Technology

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

[0003] However, there are still some problems with the display panel that need to be addressed. Summary of the Invention

[0004] To overcome the technical problems mentioned in the background, this application provides a display panel, which includes:

[0005] substrate;

[0006] A first electrode is located on one side of the substrate. The first electrode includes a first electrode portion and a second electrode portion stacked in a direction away from the substrate. The side of the second electrode portion away from the substrate has a first recessed portion recessed in the direction towards the substrate.

[0007] The sealing portion is located on the surface of the second electrode portion opposite to the substrate, and at least a portion of the orthographic projection of the first recessed portion on the substrate is located within the orthographic projection of the sealing portion on the substrate.

[0008] In some possible implementations, the first recess penetrates the second electrode portion along the thickness direction of the substrate, and the first recess exposes a portion of the first electrode portion.

[0009] Preferably, at least a portion of the sealing portion is located within the first recess and fills at least a portion of the first recess.

[0010] In some possible implementations, the sealing portion is a sealing layer;

[0011] Preferably, the orthographic projection of the sealing portion on the substrate coincides with the orthographic projection of the second electrode portion on the substrate;

[0012] Preferably, there are multiple first electrodes and multiple sealing portions, each sealing portion is disposed on the surface of the corresponding first electrode away from the substrate, and the display panel further includes a light-emitting portion located on the side of each first electrode away from the substrate; each first electrode includes at least one first recess, and the orthographic projection of the at least one first recess of each first electrode on the substrate is located within the orthographic projection of the corresponding sealing portion on the substrate;

[0013] Preferably, the sealing part is an integral structure;

[0014] Preferably, the sealing portion has a second recessed portion recessed in the direction of the substrate on the side away from the substrate, and the orthographic projection of the second recessed portion on the substrate is outside the orthographic projection of the first recessed portion on the substrate;

[0015] Preferably, along the thickness direction of the substrate, the second recess penetrates the sealing portion, and the second recess exposes a portion of the second electrode portion;

[0016] Preferably, along the thickness direction of the substrate, the thickness of the second electrode portion is greater than or equal to... and less than or equal to

[0017] Preferably, along the thickness direction of the substrate, the thickness of the sealing portion is greater than or equal to... and less than or equal to

[0018] Preferably, the material of the sealing portion is the same as the material of the second electrode portion;

[0019] Preferably, the material of the sealing portion includes indium tin oxide.

[0020] In some possible implementations, the orthographic projection of the sealing portion on the substrate is located within the orthographic projection of the second electrode portion on the substrate;

[0021] Preferably, the sealing portion extends from the side of the second electrode portion away from the substrate to contact the side of the first electrode portion exposed by the first recess that is away from the substrate;

[0022] Preferably, the number of the first electrodes is multiple, and the display panel further includes a light-emitting portion located on the side of each first electrode away from the substrate; each first electrode includes at least one first recess, and at least one sealing portion is provided on the side of each first electrode away from the substrate, and the at least one sealing portion fills the at least one first recess in a corresponding manner;

[0023] Preferably, each of the first electrodes has a plurality of spaced-apart sealing portions on the side away from the substrate;

[0024] Preferably, the material of the sealing portion includes silver fluoride.

[0025] In some possible implementations, the orthographic projection of the sealing portion on the substrate covers the orthographic projection of the first recessed portion on the substrate;

[0026] Preferably, along the thickness direction of the substrate, the thickness of the sealing portion located on the side of the second electrode portion away from the substrate is greater than or equal to... and less than or equal to

[0027] Preferably, the distance between the edge of the orthographic projection of the sealing portion on the substrate and the edge of the orthographic projection of the first recessed portion on the substrate is greater than or equal to 0.1 μm and less than or equal to 1 μm.

[0028] In some possible implementations, the first electrode further includes a third electrode portion located on the side of the first electrode portion closer to the substrate;

[0029] Preferably, the material of the first electrode portion includes silver;

[0030] Preferably, the material of the second electrode portion includes indium tin oxide;

[0031] Preferably, the material of the third electrode portion includes indium tin oxide.

[0032] In some possible implementations, the display panel further includes an isolation structure located on the side of the first electrode away from the substrate, the isolation structure enclosing an isolation opening, the isolation opening exposing a portion of the first electrode; in the thickness direction of the substrate, the sealing portion is located between the isolation structure and the substrate;

[0033] Preferably, the display panel further includes a pixel defining layer located between the first electrode and the isolation structure, the pixel defining layer including a pixel opening that exposes a portion of the first electrode and communicates with the isolation opening; in the thickness direction of the substrate, the sealing portion is located between the pixel defining layer and the substrate;

[0034] Preferably, the display panel further includes a light-emitting portion and a second electrode stacked sequentially on the side of the first electrode away from the substrate, wherein both the light-emitting portion and the second electrode are located within the isolation opening; and in the thickness direction of the substrate, the sealing portion is located between the light-emitting portion and the substrate.

[0035] Preferably, the display panel further includes a packaging unit located on the side of the second electrode away from the substrate, at least a portion of the packaging unit extending from the side of the first electrode toward the isolation opening to the side of the isolation structure away from the substrate;

[0036] Preferably, there are multiple packaging units, and the multiple packaging units are spaced apart on the side of the isolation structure away from the substrate;

[0037] Preferably, there is a gap between the packaging unit located on the side of the isolation structure away from the substrate and the side of the isolation structure away from the substrate.

[0038] In some possible implementations, the display panel further includes a second encapsulation layer located on the side of the encapsulation unit away from the substrate and a third encapsulation layer located on the side of the second encapsulation layer away from the substrate;

[0039] Preferably, the materials of both the packaging unit and the third packaging layer include inorganic materials;

[0040] Preferably, the material of the second encapsulation layer includes organic materials;

[0041] Preferably, the isolation structure includes a first isolation portion and a second isolation portion stacked sequentially along a direction away from the substrate, wherein the orthographic projection of the side of the first isolation portion away from the substrate on the substrate is located within the orthographic projection of the second isolation portion on the substrate;

[0042] Preferably, the second electrode is electrically connected to the first isolation portion; and / or, 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 is electrically connected to the third isolation portion;

[0043] Preferably, the material of the third isolation portion includes molybdenum; and / or, the material of the first isolation portion includes aluminum; and / or, the material of the second isolation portion includes titanium.

[0044] In some possible implementations, this application also provides another display panel, the display panel comprising:

[0045] substrate;

[0046] A first electrode is located on one side of the substrate. The first electrode includes a first electrode portion and a second electrode portion stacked in a direction away from the substrate. The side of the second electrode portion away from the substrate has a first recessed portion recessed in the direction towards the substrate.

[0047] A sealing portion is located on the surface of the second electrode portion away from the substrate. The sealing portion covers the first recessed portion. The side of the sealing portion away from the substrate has a second recessed portion recessed in the direction of the substrate. The orthographic projection of the second recessed portion on the substrate is outside the orthographic projection of the first recessed portion on the substrate.

[0048] In some possible implementations, this application also provides a method for manufacturing a display panel, the method comprising:

[0049] Provide substrate;

[0050] A first electrode is formed on one side of the substrate and a sealing portion is formed on the surface of the first electrode away from the substrate. The first electrode includes a first electrode portion and a second electrode portion stacked in a direction away from the substrate. The side of the second electrode portion away from the substrate has a first recessed portion recessed in a direction towards the substrate. At least a portion of the orthographic projection of the first recessed portion on the substrate is located within the orthographic projection of the sealing portion on the substrate.

[0051] In some possible implementations, the steps of forming a first electrode on one side of the substrate and forming a sealing portion on the surface of the first electrode opposite to the substrate include:

[0052] A first electrode material layer is formed on one side of the substrate;

[0053] A second electrode material layer is formed on the side of the first electrode material layer away from the substrate, and the second electrode material layer has a first recess that penetrates the second electrode material layer.

[0054] After a preset time interval, a sealing material layer is formed on the side of the second electrode material layer away from the substrate, and part of the sealing material layer extends into the first recess.

[0055] The sealing portion material layer, the second electrode portion material layer, and the first electrode portion material layer are patterned to form the sealing portion and the first electrode;

[0056] Preferably, the preset time is greater than or equal to 1 second and less than or equal to 2 seconds.

[0057] In some possible implementations, the steps of forming a first electrode on one side of the substrate and forming a sealing portion on the surface of the first electrode opposite to the substrate include:

[0058] A first electrode material layer is formed on one side of the substrate;

[0059] A second electrode material layer is formed on the side of the first electrode material layer away from the substrate, and the second electrode material layer has a first recess that penetrates the second electrode material layer.

[0060] The first electrode material layer and the second electrode material layer are cleaned with a solution to form a sealing portion in the first recess.

[0061] The first electrode material layer and the second electrode material layer are patterned to form the first electrode;

[0062] Preferably, the solution comprises at least one of hydrofluoric acid, sodium fluoride solution, potassium fluoride solution, ammonium fluoride solution, or ammonium bifluoride solution.

[0063] In some possible implementations, after forming a first electrode on one side of the substrate and forming a sealing portion on the surface of the first electrode opposite to the substrate, the method further includes:

[0064] An isolation structure is formed on the side of the first electrode away from the substrate, the isolation structure enclosing an isolation opening, the isolation opening exposing a portion of the first electrode;

[0065] At least a portion of the light-emitting unit is formed within the isolation opening, and an encapsulation unit is formed on the side of the light-emitting unit away from the substrate.

[0066] In some possible implementations, before cleaning the first electrode material layer and the second electrode material layer with a solution, the method further includes:

[0067] The first electrode is then annealed.

[0068] In some possible implementations, this application also provides an electronic device, which includes the display panel described in this application, or a display panel prepared by the method for preparing the display panel described in this application.

[0069] Compared with the prior art, this application has the following beneficial effects:

[0070] This application provides a display panel, a method for manufacturing the display panel, and an electronic device. By providing a sealing portion on the surface of the second electrode portion away from the substrate, the risk of etching solution contacting the first electrode portion through the first recess can be reduced, thereby reducing the risk of damage to the first electrode portion. This can improve the problem of dark spots generated by the corresponding light-emitting unit and ultimately improve the display effect of the display panel. Attached Figure Description

[0071] 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.

[0072] Figure 1 A cross-sectional schematic diagram showing the first electrode of the display panel provided in an embodiment of this application disposed on a substrate;

[0073] Figure 2 One of the cross-sectional schematic diagrams provided in this application shows the sealing portion located away from the substrate surface in the second electrode portion;

[0074] Figure 3 A second schematic cross-sectional view of the sealing portion located away from the substrate surface in an embodiment of this application;

[0075] Figure 4 One of the cross-sectional schematic diagrams of the first electrode provided in the embodiments of this application further includes a third electrode portion;

[0076] Figure 5 The first electrode provided in the embodiments of this application also includes a second cross-sectional schematic diagram of a third electrode portion;

[0077] Figure 6 One of the cross-sectional schematic diagrams of the display panel provided in the embodiments of this application includes an isolation structure;

[0078] Figure 7 A second cross-sectional schematic diagram of the display panel including the isolation structure provided in the embodiments of this application;

[0079] Figure 8 One of the cross-sectional schematic diagrams of a display panel including a packaging unit provided in an embodiment of this application;

[0080] Figure 9 A second cross-sectional schematic diagram of a display panel including a packaging unit, provided for an embodiment of this application;

[0081] Figure 10 A cross-sectional schematic diagram of the display panel provided in the embodiments of this application, including a second encapsulation layer and a third encapsulation layer;

[0082] Figure 11 A schematic flowchart illustrating a method for manufacturing a display panel according to an embodiment of this application;

[0083] Figure 12 In the embodiments of this application, a third electrode material layer and a first electrode material layer are sequentially formed on one side of the substrate;

[0084] Figure 13 A cross-sectional view of a second electrode material layer formed on the side of the first electrode material layer away from the substrate, as provided in an embodiment of this application;

[0085] Figure 14 This is a cross-sectional view of a sealing material layer formed on the side of the second electrode material layer away from the substrate, as provided in an embodiment of this application.

[0086] Figure 15 A cross-sectional view of the sequentially patterned sealing material layer, second electrode material layer, and first electrode material layer provided in an embodiment of this application;

[0087] Figure 16 A cross-sectional schematic diagram showing the formation of a second electrode material layer on the side of the first electrode material layer away from the substrate, provided in an embodiment of this application;

[0088] Figure 17 A cross-sectional schematic diagram of a sealing portion formed in a first recess provided in an embodiment of this application;

[0089] Figure 18 A schematic cross-section of the patterned first electrode material layer and second electrode material layer provided in an embodiment of this application.

[0090] Figure 19 One of the cross-sectional views of forming an isolation structure on the side of the first electrode away from the substrate, as provided in the embodiments of this application;

[0091] Figure 20 This is a second schematic cross-section showing the formation of an isolation structure on the side of the first electrode away from the substrate, as provided in an embodiment of this application.

[0092] Reference numerals: 1. Substrate; 2. First electrode; 21. First electrode portion; 22. Second electrode portion; 221. First recessed portion; 23. Third electrode portion; 3. Sealing portion; 31. Second recessed portion; 4. Light-emitting portion; 5. Second electrode; 6. Light-emitting unit; 7. Pixel defining layer; 71. Pixel opening; 8. Isolation structure; 81. First isolation portion; 82. Second isolation portion; 83. Third isolation portion; 9. Isolation opening; 10. Encapsulation unit; 11. First encapsulation layer; 12. Second encapsulation layer; 13. Material layer of third electrode portion; 14. Material layer of first electrode portion; 15. Material layer of second electrode portion; 16. Material layer of sealing portion. Detailed Implementation

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0098] 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 Metal Mask (FMM) technology are limited by technological constraints that prevent further increases in light-emitting unit density. Through long-term research, the inventors discovered a solution to this problem: in some display panels, a first electrode is incorporated. During the deposition of the light-emitting functional layer and the second electrode, the two electrodes can be disconnected at the first electrode. By employing multiple deposition and etching processes (i.e., patterning of light-emitting units), light-emitting units of different colors can be formed within different electrode openings.

[0099] Among them, patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, CN117979755A, and CN1179 CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A describe the relevant technical solutions for the first electrode, the contents of which are incorporated herein by reference.

[0100] The display panel in the related technology includes a substrate and a light-emitting unit located on one side of the substrate. The light-emitting unit includes a first electrode, and the side of the first electrode away from the substrate has a recess. In the subsequent manufacturing process of the display panel, the etching solution can easily damage the first electrode through the recess, thereby causing dark spots in the related light-emitting unit and ultimately affecting the display effect of the display panel.

[0101] 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 existing solutions 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.

[0102] Please see Figure 1 This embodiment provides a display panel, which includes a substrate 1, a first electrode 2, and a sealing portion 3.

[0103] The substrate 1 may include a substrate and a plurality of driving units located on one side of the substrate, each driving unit may include one or more semiconductor switching devices. The semiconductor switching devices may be formed by the interaction of multiple film layers in the substrate 1; for example, the semiconductor switching devices may be thin-film transistors formed by the interaction of multiple film layers.

[0104] The first electrode 2 is located on one side of the substrate 1. The first electrode 2 includes a first electrode portion 21 and a second electrode portion 22 stacked in a direction away from the substrate 1. The side of the second electrode portion 22 away from the substrate 1 has a first recessed portion 221 recessed in the direction towards the substrate 1.

[0105] The sealing portion 3 is located on the surface of the second electrode portion 22 away from the substrate 1, and at least a portion of the orthogonal projection of the first recess 221 on the substrate 1 is located within the orthogonal projection of the sealing portion 3 on the substrate 1.

[0106] The sealing part 3 can seal at least part of the first recess 221. In this way, during the subsequent manufacturing process of the display panel, the etching solution is less likely to flow through the first recess 221 to contact the second electrode part 22, thereby making it less likely to damage the second electrode part 22. The corresponding light-emitting unit 6 is less likely to generate dark spots, thereby improving the display effect of the display panel.

[0107] Based on the above design, this embodiment reduces the risk of etching solution contacting the first electrode portion 21 through the first recess 221 by providing a sealing portion 3 on the surface of the second electrode portion 22 away from the substrate 1. This reduces the risk of the first electrode portion 21 being damaged, thereby improving the problem of dark spots generated by the corresponding light-emitting unit 6 and ultimately improving the display effect of the display panel.

[0108] In some possible implementations, please refer again. Figure 1 Along the thickness direction Z of the substrate 1, the first recess 221 penetrates the second electrode portion 22, and the first recess 221 exposes a portion of the first electrode portion 21.

[0109] Optionally, at least a portion of the sealing portion 3 is located within the first recess 221 and fills at least a portion of the first recess 221.

[0110] The sealing part 3 located in the first recess 221 can seal the first recess 221. In this way, during the subsequent manufacturing process of the display panel, the etching solution is less likely to flow through the first recess 221 to contact the second electrode part 22, thereby making it less likely to damage the second electrode part 22.

[0111] In some embodiments, see Figure 2 The sealing part 3 is a sealing layer, and the orthographic projection of the sealing part 3 on the substrate 1 coincides with the orthographic projection of the second electrode part 22 on the substrate 1.

[0112] Optionally, the sealing portion 3 has a second recessed portion 31 recessed in the direction of the substrate 1 on the side away from the substrate 1. The second recessed portion 31 penetrates the sealing portion 3. The exposed portion of the second electrode portion 22 is on the side away from the substrate 1. The orthographic projection of the second recessed portion 31 on the substrate 1 is outside the orthographic projection of the first recessed portion 221 on the substrate 1.

[0113] After the material layer of the second electrode portion 22 is formed, after a preset time interval, such as 1 second or 2 seconds, the material layer of the sealing portion 3 is formed on the material layer of the second electrode portion 22. In this way, the first recess 221 on the material layer of the second electrode portion 22 and the second recess 31 on the material layer of the sealing portion 3 will naturally be offset from each other. Finally, the first recess 221 on the second electrode portion 22 and the second recess 31 on the sealing portion 3 will be offset from each other.

[0114] Thus, during the subsequent manufacturing process of the display panel, the etching solution is less likely to pass through the second recess 31 and the first recess 221 sequentially to reach the first electrode portion 21, thereby making it less likely to damage the first electrode portion 21.

[0115] When the material of the sealing portion 3 is deposited, part of the material of the sealing portion 3 will enter the first recess 221, and eventually part of the sealing portion 3 will extend into the first recess 221 and seal the first recess 221. In this way, the risk of the etching solution damaging the second electrode portion 22 after passing through the second recess 31 and the first recess 221 in sequence can be further reduced.

[0116] Preferably, there are multiple first electrodes 2 and multiple sealing portions 3. Each sealing portion 3 is disposed on the surface of the corresponding first electrode 2 away from the substrate 1. The display panel also includes a light-emitting portion located on the side of each first electrode 2 away from the substrate 1. Each first electrode 2 includes at least one first recess 221, and the orthographic projection of at least one first recess 221 of each first electrode 2 on the substrate 1 is located within the orthographic projection of the corresponding sealing portion 3 on the substrate 1.

[0117] Optionally, the sealing part 3 is an integral structure.

[0118] In this embodiment, the side of the light-emitting part facing the substrate 1 contacts the side of the sealing part 3 away from the substrate 1, and the sealing part 3 is an integral covering the side of the first electrode 2 away from the substrate 1.

[0119] Preferably, along the thickness direction Z of the substrate 1, the thickness D1 of the second electrode portion 22 is greater than or equal to... and less than or equal to For example, the thickness D1 can be or wait

[0120] Preferably, along the thickness direction Z of the substrate 1, the thickness D2 of the sealing portion 3 is greater than or equal to... and less than or equal to For example, the thickness D2 can be or wait.

[0121] By setting the thicknesses D1 and D2 appropriately, the etching solution is less likely to pass through the second recess 31 and the first recess 221 sequentially to reach the second electrode 22, thereby making it less likely to damage the second electrode 22.

[0122] Preferably, in this embodiment, the material of the sealing part 3 is the same as the material of the second electrode part 22; specifically, the material of the sealing part 3 includes indium tin oxide.

[0123] In other embodiments, please refer to Figure 3 The orthographic projection of the sealing part 3 on the substrate 1 is located within the orthographic projection of the second electrode part 22 on the substrate 1.

[0124] The second electrode portion 22 of the sealing portion 3 extends from the side away from the substrate 1 to contact the side of the first electrode portion 21 exposed by the first recess 221 that is away from the substrate 1.

[0125] In this way, the sealing part 3 can completely seal the first recess 221, thereby improving the sealing effect of the sealing part 3 on the first recess 221. In the subsequent manufacturing process of the display panel, the etching solution is less likely to reach the second electrode part 22 through the first recess 221.

[0126] Preferably, the material of the sealing portion 3 in this embodiment includes silver fluoride. During the preparation of the first electrode 2, the material layers of the second electrode portion 22 and the sealing portion 3 can be cleaned with a relevant solution (e.g., hydrofluoric acid, sodium fluoride solution, potassium fluoride solution, ammonium fluoride solution, or ammonium bifluoride solution). After the solution comes into contact with the material of the second electrode portion 22 through the first recess 221, silver fluoride is generated in the first recess 221, which makes it easier to form the sealing portion 3 in the first recess 221.

[0127] Preferably, there are multiple first electrodes 2, and the display panel further includes a light-emitting portion located on the side of each first electrode 2 away from the substrate 1; each first electrode 2 includes at least one first recess 221, and at least one sealing portion 3 is provided on the side of each first electrode 2 away from the substrate 1, and at least one sealing portion 3 fills at least one first recess 221 in a corresponding manner.

[0128] Preferably, each first electrode 2 has a plurality of spaced-apart sealing portions 3 on the side away from the substrate 1.

[0129] In this embodiment, the side of the light-emitting part facing the substrate 1 contacts the side of the first electrode 2 away from the substrate 1. Multiple sealing portions 3 and multiple first recesses 221 can be provided on the same side of the first electrode 2 away from the substrate 1. Each sealing portion 3 corresponds to a first recess 221, and each sealing portion 3 seals the corresponding first recess 221. This makes it more difficult for the etching solution to reach the second electrode part 22 through the first recesses 221.

[0130] In some possible implementations, please refer again. Figure 3 The orthographic projection of the sealing portion 3 on the substrate 1 covers the orthographic projection of the first recess 221 on the substrate 1. In this way, the sealing effect of the sealing portion 3 on the first recess 221 can be further improved.

[0131] Preferably, along the thickness direction Z of the substrate 1, the thickness D3 of the sealing portion 3 located on the side of the second electrode portion 22 away from the substrate 1 is greater than or equal to... and less than or equal to

[0132] Thickness D3 does not include the thickness of the sealing portion 3 located within the first recess 221. For example, thickness D3 can be... or If the thickness D3 is too large, the material of the second electrode portion 22 will need a longer reaction time with the solution, which will affect the efficiency of forming the first electrode 2; if the thickness D3 is too small, it may affect the sealing effect of the sealing portion 3 on the first recess 221. Therefore, by reasonably setting the thickness D3, the sealing effect of the sealing portion 3 on the first recess 221 can be improved without affecting the efficiency of forming the first electrode 2.

[0133] Preferably, the distance W between the edge of the orthographic projection of the sealing portion 3 on the substrate 1 and the edge of the orthographic projection of the first recessed portion 221 on the substrate 1 is greater than or equal to 0.1 μm and less than or equal to 1 μm.

[0134] For example, the distance W can be 0.1μm, 0.2μm, 0.3μm, 0.5μm, 0.7μm, 0.8μm, 0.9μm, or 1μm, etc. If the distance W is too large, the material of the second electrode 22 will need a longer reaction time with the solution, which will affect the efficiency of forming the first electrode 2. If the distance W is too small, it may affect the sealing effect of the sealing part 3 on the first recess 221. Therefore, by reasonably setting the distance W, the sealing effect of the sealing part 3 on the first recess 221 can be improved without affecting the efficiency of forming the first electrode 2.

[0135] For some possible implementations, please refer to Figure 4 and Figure 5 The first electrode 2 also includes a third electrode portion 23 located on the side of the first electrode portion 21 near the substrate 1.

[0136] Preferably, the material of the first electrode portion 21 includes silver, the material of the second electrode portion 22 includes indium tin oxide, and the material of the third electrode portion 23 includes indium tin oxide.

[0137] If the first electrode portion 21 is in direct contact with the pixel defining layer 7 in the display panel, the adhesive force between the first electrode portion 21 and the pixel defining layer 7 is not strong enough. In this embodiment, a third electrode portion 23 is formed on the side of the first electrode portion 21 close to the substrate 1. The third electrode portion 23 can directly contact the pixel defining layer 7, and the adhesive force between the third electrode portion 23 and the pixel defining layer 7 is greater, thereby improving the stability of the first electrode 2 disposed on the pixel defining layer 7.

[0138] For some possible implementations, please refer to Figure 6 and Figure 7 The display panel also includes an isolation structure 8 located on the side of the first electrode 2 away from the substrate 1. The isolation structure 8 forms an isolation opening 9, and the isolation opening 9 exposes part of the first electrode 2. In the thickness direction of the substrate 1, the sealing part 3 is located between the isolation structure 8 and the substrate 1.

[0139] The display panel also includes a pixel defining layer 7 located between the first electrode 2 and the isolation structure 8. The pixel defining layer 7 includes a pixel opening 71, which exposes a portion of the first electrode 2. The pixel opening 71 communicates with the isolation opening 9. In the thickness direction of the substrate 1, the sealing part 3 is located between the pixel defining layer 7 and the substrate 1.

[0140] The display panel also includes a light-emitting part 4 and a second electrode 5 stacked sequentially on the side of the first electrode 2 away from the substrate 1. Both the light-emitting part 4 and the second electrode 5 are located within the isolation opening 9. In the thickness direction of the substrate 1, the sealing part 3 is located between the light-emitting part 4 and the substrate 1.

[0141] The isolation structure 8 allows the display panel to form film layers of different colors of light-emitting units 6 in different isolation openings 9 without the need for a fine mask. When forming the light-emitting material layer, the isolation structure 8 separates the light-emitting material layer into multiple spaced-apart light-emitting portions 4. When forming the second electrode material layer, the isolation structure 8 separates the second electrode material layer into multiple spaced-apart second electrodes 5. The isolation structure 8 includes a conductive material, and the second electrodes 5 are electrically connected to the isolation structure 8. One first electrode 2, one light-emitting portion 4, and one second electrode 5 form one light-emitting unit 6. The first electrode 2 can be an anode, and the second electrode 5 can be a cathode.

[0142] In this way, different light-emitting units 6 can be made independent of each other, thereby reducing crosstalk between adjacent light-emitting units 6 and improving the display effect of the display panel. At the same time, due to the presence of the isolation structure 8, the light-emitting material layer and the second electrode material layer in each color light-emitting unit 6 of the display panel can be prepared as a whole before patterning, thereby eliminating the need for a fine mask and saving the manufacturing cost of the display panel.

[0143] Preferably, please refer to Figure 8 and Figure 9 The display panel also includes a packaging unit 10 located on the side of the second electrode 5 away from the substrate 1, at least a portion of the packaging unit 10 extending from the side of the first electrode 2 toward the isolation opening 9 to the side of the isolation structure 8 away from the substrate 1.

[0144] Optionally, there may be multiple packaging units 10, which are spaced apart on the side of the isolation structure 8 away from the substrate 1.

[0145] Optionally, there is a gap between the packaging unit 10 located on the side of the isolation structure 8 away from the substrate 1 and the side of the isolation structure 8 away from the substrate 1.

[0146] During the patterning process of the light-emitting unit 6, the encapsulation unit 10 is disconnected at the isolation structure 8 to form the encapsulation unit 10. The encapsulation unit 10 can completely and independently encapsulate the corresponding light-emitting unit 6, thereby improving the display characteristics of the display panel.

[0147] For some possible implementations, please refer to Figure 10 The display panel also includes a second encapsulation layer 11 located on the side of the encapsulation unit 10 away from the substrate 1 and a third encapsulation layer 12 located on the side of the second encapsulation layer 11 away from the substrate 1.

[0148] Optionally, the materials of the encapsulation unit 10 and the third encapsulation layer 12 both include inorganic materials, and the material of the second encapsulation layer 11 includes organic materials.

[0149] For example, the encapsulation unit 10 and the third encapsulation layer 12 can be formed by chemical vapor deposition (CVD), and the second encapsulation layer 11 can be formed by inkjet printing (IJP). The second encapsulation layer 11 and the third encapsulation layer 12 can achieve a better encapsulation effect on the light-emitting unit 6, thereby further improving the encapsulation quality of the display panel.

[0150] Preferably, please see again. Figure 9 The isolation structure 8 includes a first isolation portion 81 and a second isolation portion 82 stacked sequentially along the direction away from the substrate 1. The orthographic projection of the side of the first isolation portion 81 away from the substrate 1 on the substrate 1 is located within the orthographic projection of the second isolation portion 82 on the substrate 1.

[0151] Since the second isolation portion 82 is located on the side of the first isolation portion 81 away from the substrate 1, and on a plane parallel to the substrate 1, the lateral width of the second isolation portion 82 is greater than the lateral width of the first isolation portion 81. Therefore, the second isolation portion 82 causes the light-emitting material layer and the second electrode material layer to be disconnected at the isolation structure 8. In this way, the isolation structure 8 formed by the first isolation portion 81 and the second isolation portion 82 makes it easier to independently package each light-emitting unit 6, thereby improving the packaging yield of the display panel.

[0152] Preferably, please see again. Figure 9 The second electrode 5 is electrically connected to the first isolation part 81; the first isolation part 81 includes a conductive material, and the second electrode 5 corresponding to the light-emitting unit 6 extends to contact the side wall of the first isolation part 81 so as to realize the electrical connection between the second electrode 5 corresponding to the light-emitting unit 6 and the first isolation part 81.

[0153] Please see again Figure 10 The isolation structure 8 also includes a third isolation section 83 located on the side of the first isolation section 81 facing the substrate 1, and the second electrode 5 is electrically connected to the third isolation section 83.

[0154] The third isolation section 83 includes a conductive material, and the second electrode 5 corresponding to the light-emitting unit 6 extends to contact the side wall of the third isolation section 83 so as to realize the electrical connection between the second electrode 5 corresponding to the light-emitting unit 6 and the third isolation section 83.

[0155] Specifically, the material of the third isolation portion 83 includes molybdenum; and / or, the material of the first isolation portion 81 includes aluminum; and / or, the material of the second isolation portion 82 includes titanium. Thus, when the isolation structure 8 isolates the second electrode material layer as the second electrode 5, the second electrode 5 is more easily electrically connected to the first isolation portion 81 and / or the third isolation portion 83.

[0156] The orthographic projection of the light-emitting part 4 on the substrate 1 is outside the orthographic projection of the third isolation part 83 and / or the first isolation part 81 on the substrate 1. In this way, the light-emitting part 4 does not overlap with the isolation structure 8, thereby effectively improving the crosstalk problem between the light-emitting units 6.

[0157] In some possible implementations, please refer again. Figure 2 This application also provides a display panel, which includes a substrate 1, a first electrode 2 and a sealing portion 3.

[0158] The first electrode 2 is located on one side of the substrate 1. The first electrode 2 includes a first electrode portion 21 and a second electrode portion 22 stacked in a direction away from the substrate 1. The side of the second electrode portion 22 away from the substrate 1 has a first recessed portion 221 recessed in the direction towards the substrate 1.

[0159] The sealing portion 3 is located on the surface of the second electrode portion 22 away from the substrate 1. The sealing portion 3 covers the first recessed portion 221. The side of the sealing portion 3 away from the substrate 1 has a second recessed portion 31 recessed in the direction of the substrate 1. The orthogonal projection of the second recessed portion 31 on the substrate 1 is outside the orthogonal projection of the first recessed portion 221 on the substrate 1.

[0160] After the material layer of the second electrode portion 22 is formed, after a preset time interval, such as 1 second or 2 seconds, the material layer of the sealing portion 3 is formed on the material layer of the second electrode portion 22. In this way, the first recess 221 on the material layer of the second electrode portion 22 and the second recess 31 on the material layer of the sealing portion 3 will naturally be offset from each other. Finally, the first recess 221 on the second electrode portion 22 and the second recess 31 on the sealing portion 3 will be offset from each other.

[0161] Thus, during the subsequent manufacturing process of the display panel, the etching solution is less likely to pass through the second recess 31 and the first recess 221 sequentially to reach the first electrode portion 21, thereby making it less likely to damage the first electrode portion 21.

[0162] For some possible implementations, please refer to Figure 11 This application also provides a method for manufacturing a display panel, the method comprising:

[0163] S10: Provide substrate 1.

[0164] S11: A first electrode 2 is formed on one side of the substrate 1 and a sealing portion 3 is formed on the surface of the first electrode 2 away from the substrate 1. The first electrode 2 includes a first electrode portion 21 and a second electrode portion 22 stacked in a direction away from the substrate 1. Along the thickness direction Z of the substrate 1, the side of the second electrode portion 22 away from the substrate 1 has a first recessed portion 221 recessed in the direction towards the substrate 1. At least a portion of the orthographic projection of the first recessed portion 221 on the substrate 1 is located within the orthographic projection of the sealing portion 3 on the substrate 1.

[0165] The sealing part 3 formed by the above method can seal the first recess 221. In this way, during the subsequent preparation of the display panel, the etching solution is less likely to flow through the first recess 221 to contact the second electrode part 22, thereby making it less likely to damage the second electrode part 22. The corresponding light-emitting unit 6 is less likely to produce dark spots, thereby improving the display effect of the display panel.

[0166] In some possible implementations, the steps of forming a first electrode 2 on one side of the substrate 1 and forming a sealing portion 3 on the surface of the first electrode 2 facing away from the substrate 1 include:

[0167] Please see Figure 12 A third electrode material layer 13 and a first electrode material layer 14 are sequentially formed on one side of the substrate 1.

[0168] Please see Figure 13 A second electrode material layer 15 is formed on the side of the first electrode material layer 14 away from the substrate 1, and a first recess 221 is provided on the second electrode material layer 15.

[0169] Please see Figure 14 After a preset time interval, a sealing material layer 16 is formed on the side of the second electrode material layer 15 away from the substrate 1, and part of the sealing material layer 16 extends into the first recess 221.

[0170] Please see Figure 15 The sealing part material layer 16, the second electrode part material layer 15 and the first electrode part material layer 14 are patterned to form the sealing part 3 and the first electrode 2.

[0171] Preferably, the preset time is greater than or equal to 1 second and less than or equal to 2 seconds.

[0172] After the first electrode material layer 14 is formed by the above method, a sealing material layer 16 is formed on the basis of the first electrode material layer 14 after a preset time interval, such as 1 second, 1.5 seconds or 2 seconds. In this way, the first recess 221 on the first electrode material layer 14 and the second recess 31 on the sealing material layer 16 will naturally be offset from each other. Finally, the first recess 221 on the second electrode 22 and the second recess 31 on the sealing part 3 will be offset from each other.

[0173] Thus, during the subsequent manufacturing process of the display panel, the etching solution is less likely to pass through the second recess 31 and the first recess 221 sequentially to reach the first electrode portion 21, thereby making it less likely to damage the first electrode portion 21.

[0174] In some possible implementations, the steps of forming a first electrode 2 on one side of the substrate 1 and forming a sealing portion 3 on the surface of the first electrode 2 facing away from the substrate 1 include:

[0175] Please see again Figure 12 A first electrode material layer 14 is formed on one side of the substrate 1.

[0176] Please see Figure 16 A second electrode material layer 15 is formed on the side of the first electrode material layer 14 away from the substrate 1, and the second electrode material layer 15 has a first recess 221 that penetrates the second electrode material layer 15.

[0177] Please see Figure 17 The first electrode material layer 14 and the second electrode material layer 15 are cleaned with a solution to form a sealing part 3 in the first recess 221.

[0178] Please see Figure 18 The first electrode material layer 14 and the second electrode material layer 15 are patterned to form the first electrode 2.

[0179] Preferably, the solution includes at least one of hydrofluoric acid, sodium fluoride solution, potassium fluoride solution, ammonium fluoride solution, or ammonium bifluoride solution.

[0180] After forming the first electrode material layer 14 and the second electrode material layer 15, the first electrode 2 is annealed. Then, the material layer of the second electrode 22 and the material layer of the sealing part 3 are cleaned by one of hydrofluoric acid, sodium fluoride solution, potassium fluoride solution, ammonium fluoride solution or ammonium bifluoride solution. After the solution comes into contact with the material of the second electrode 22 through the first recess 221, silver fluoride is generated in the first recess 221, which makes it easier to form the sealing part 3 in the first recess 221.

[0181] In some possible implementations, after the steps of forming a first electrode 2 on one side of the substrate 1 and forming a sealing portion 3 on the surface of the first electrode 2 away from the substrate 1, the method further includes:

[0182] Please see Figures 19-20 An isolation structure 8 is formed on the side of the first electrode 2 away from the substrate 1. The isolation structure 8 encloses and forms an isolation opening 9, and the isolation opening 9 exposes part of the first electrode 2.

[0183] Since the sealing part 3 in the first electrode 2 formed by the above method can seal the second recess 31 on the sealing part 3, during the formation of the isolation structure 8, the etching solution is not easy to pass through the second recess 31 and the first recess 221 in sequence to reach the first electrode part 21, so that the first electrode part 21 is not easily damaged.

[0184] Please see again Figures 8-9 At least a portion of the light-emitting unit 6 is formed within the isolation opening 9, and an encapsulation unit 10 is formed on the side of the light-emitting unit 6 away from the substrate 1.

[0185] Since the sealing part 3 in the first electrode 2 formed by the above method can seal the second recess 31 on the sealing part 3, the etching solution is not easy to pass through the second recess 31 and the first recess 221 in sequence to reach the first electrode part 21 during the formation of the light-emitting unit 6, so that the first electrode part 21 is not easily damaged.

[0186] In some possible embodiments, this application also provides an electronic device that includes the display panel described in this application, or includes a display panel prepared by the method described in this application. This electronic device may include a device with image processing capabilities, such as a server, personal computer, laptop computer, etc. Because this electronic device includes the display panel described in this application, it has better display quality.

[0187] 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.

[0188] 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, characterized in that, The display panel includes: substrate; A first electrode is located on one side of the substrate. The first electrode includes a first electrode portion and a second electrode portion stacked in a direction away from the substrate. The side of the second electrode portion away from the substrate has a first recessed portion recessed in the direction towards the substrate. The sealing portion is located on the surface of the second electrode portion opposite to the substrate, and at least a portion of the orthographic projection of the first recessed portion on the substrate is located within the orthographic projection of the sealing portion on the substrate.

2. The display panel according to claim 1, characterized in that, Along the thickness direction of the substrate, the first recess penetrates the second electrode portion, and a portion of the first electrode portion is exposed in the first recess. Preferably, at least a portion of the sealing portion is located within the first recess and fills at least a portion of the first recess.

3. The display panel according to claim 2, characterized in that, The sealing part is a sealing layer; Preferably, the orthographic projection of the sealing portion on the substrate coincides with the orthographic projection of the second electrode portion on the substrate; Preferably, there are multiple first electrodes and multiple sealing portions, each sealing portion is disposed on the surface of the corresponding first electrode away from the substrate, and the display panel further includes a light-emitting portion located on the side of each first electrode away from the substrate; each first electrode includes at least one first recess, and the orthographic projection of the at least one first recess of each first electrode on the substrate is located within the orthographic projection of the corresponding sealing portion on the substrate; Preferably, the sealing part is an integral structure; Preferably, the sealing portion has a second recessed portion recessed in the direction of the substrate on the side away from the substrate, and the orthographic projection of the second recessed portion on the substrate is outside the orthographic projection of the first recessed portion on the substrate; Preferably, along the thickness direction of the substrate, the second recess penetrates the sealing portion, and the second recess exposes a portion of the second electrode portion; Preferably, along the thickness direction of the substrate, the thickness of the second electrode portion is greater than or equal to... and less than or equal to Preferably, along the thickness direction of the substrate, the thickness of the sealing portion is greater than or equal to... and less than or equal to Preferably, the material of the sealing portion is the same as the material of the second electrode portion; Preferably, the material of the sealing portion includes indium tin oxide.

4. The display panel according to claim 2, characterized in that, The orthographic projection of the sealing portion on the substrate is located within the orthographic projection of the second electrode portion on the substrate; Preferably, the sealing portion extends from the side of the second electrode portion away from the substrate to contact the side of the first electrode portion exposed by the first recess that is away from the substrate; Preferably, the number of the first electrodes is multiple, and the display panel further includes a light-emitting portion located on the side of each first electrode away from the substrate; each first electrode includes at least one first recess, and at least one sealing portion is provided on the side of each first electrode away from the substrate, and the at least one sealing portion fills the at least one first recess in a corresponding manner; Preferably, each of the first electrodes has a plurality of spaced-apart sealing portions on the side away from the substrate; Preferably, the material of the sealing portion includes silver fluoride.

5. The display panel according to claim 4, characterized in that, Along the thickness direction of the substrate, the thickness of the sealing portion located on the side of the second electrode portion away from the substrate is greater than or equal to... and less than or equal to Preferably, the distance between the edge of the orthographic projection of the sealing portion on the substrate and the edge of the orthographic projection of the first recessed portion on the substrate is greater than or equal to 0.1 μm and less than or equal to 1 μm.

6. The display panel according to claim 1, characterized in that, The first electrode further includes a third electrode portion located on the side of the first electrode portion closer to the substrate; Preferably, the material of the first electrode portion includes silver; Preferably, the material of the second electrode portion includes indium tin oxide; Preferably, the material of the third electrode portion includes indium tin oxide.

7. The display panel according to any one of claims 1-6, characterized in that, The display panel further includes an isolation structure located on the side of the first electrode away from the substrate, the isolation structure forming an isolation opening, the isolation opening exposing a portion of the first electrode; in the thickness direction of the substrate, the sealing portion is located between the isolation structure and the substrate; Preferably, the display panel further includes a pixel defining layer located between the first electrode and the isolation structure, the pixel defining layer including a pixel opening that exposes a portion of the first electrode and communicates with the isolation opening; in the thickness direction of the substrate, the sealing portion is located between the pixel defining layer and the substrate; Preferably, the display panel further includes a light-emitting portion and a second electrode stacked sequentially on the side of the first electrode away from the substrate, wherein both the light-emitting portion and the second electrode are located within the isolation opening; and in the thickness direction of the substrate, the sealing portion is located between the light-emitting portion and the substrate. Preferably, the display panel further includes a packaging unit located on the side of the second electrode away from the substrate, at least a portion of the packaging unit extending from the side of the first electrode toward the isolation opening to the side of the isolation structure away from the substrate; Preferably, there are multiple packaging units, and the multiple packaging units are spaced apart on the side of the isolation structure away from the substrate; Preferably, there is a gap between the packaging unit located on the side of the isolation structure away from the substrate and the side of the isolation structure away from the substrate.

8. The display panel according to claim 7, characterized in that, The display panel further includes a second encapsulation layer located on the side of the encapsulation unit away from the substrate and a third encapsulation layer located on the side of the second encapsulation layer away from the substrate; Preferably, the materials of both the packaging unit and the third packaging layer include inorganic materials; Preferably, the material of the second encapsulation layer includes organic materials; Preferably, the isolation structure includes a first isolation portion and a second isolation portion stacked sequentially along a direction away from the substrate, wherein the orthographic projection of the side of the first isolation portion away from the substrate on the substrate is located within the orthographic projection of the second isolation portion on the substrate; Preferably, the second electrode is electrically connected to the first isolation portion; and / or, 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 is electrically connected to the third isolation portion; Preferably, the material of the third isolation portion includes molybdenum; and / or, the material of the first isolation portion includes aluminum; and / or, the material of the second isolation portion includes titanium.

9. A display panel, characterized in that, The display panel includes: substrate; A first electrode is located on one side of the substrate. The first electrode includes a first electrode portion and a second electrode portion stacked in a direction away from the substrate. The side of the second electrode portion away from the substrate has a first recessed portion recessed in the direction towards the substrate. A sealing portion is located on the surface of the second electrode portion away from the substrate. The sealing portion covers the first recessed portion. The side of the sealing portion away from the substrate has a second recessed portion recessed in the direction of the substrate. The orthographic projection of the second recessed portion on the substrate is outside the orthographic projection of the first recessed portion on the substrate.

10. A method for manufacturing a display panel, characterized in that, The method includes: Provide substrate; A first electrode is formed on one side of the substrate and a sealing portion is formed on the surface of the first electrode away from the substrate. The first electrode includes a first electrode portion and a second electrode portion stacked in a direction away from the substrate. The side of the second electrode portion away from the substrate has a first recessed portion recessed in a direction towards the substrate. At least a portion of the orthographic projection of the first recessed portion on the substrate is located within the orthographic projection of the sealing portion on the substrate.

11. The method for manufacturing a display panel according to claim 10, characterized in that, The steps of forming a first electrode on one side of the substrate and forming a sealing portion on the surface of the first electrode opposite to the substrate include: A first electrode material layer is formed on one side of the substrate; A second electrode material layer is formed on the side of the first electrode material layer away from the substrate, and the second electrode material layer has a first recess that penetrates the second electrode material layer. After a preset time interval, a sealing material layer is formed on the side of the second electrode material layer away from the substrate, and part of the sealing material layer extends into the first recess. The sealing portion material layer, the second electrode portion material layer, and the first electrode portion material layer are patterned to form the sealing portion and the first electrode; Preferably, the preset time is greater than or equal to 1 second and less than or equal to 2 seconds.

12. The method for manufacturing a display panel according to claim 10, characterized in that, The steps of forming a first electrode on one side of the substrate and forming a sealing portion on the surface of the first electrode opposite to the substrate include: A first electrode material layer is formed on one side of the substrate; A second electrode material layer is formed on the side of the first electrode material layer away from the substrate, and the second electrode material layer has a first recess that penetrates the second electrode material layer. The first electrode material layer and the second electrode material layer are cleaned with a solution to form a sealing portion in the first recess. The first electrode material layer and the second electrode material layer are patterned to form the first electrode; Preferably, the solution comprises at least one of hydrofluoric acid, sodium fluoride solution, potassium fluoride solution, ammonium fluoride solution, or ammonium bifluoride solution.

13. The method for manufacturing a display panel according to any one of claims 10-12, characterized in that, After the steps of forming a first electrode on one side of the substrate and forming a sealing portion on the surface of the first electrode opposite to the substrate, the method further includes: An isolation structure is formed on the side of the first electrode away from the substrate, the isolation structure enclosing an isolation opening, the isolation opening exposing a portion of the first electrode; At least a portion of the light-emitting unit is formed within the isolation opening, and an encapsulation unit is formed on the side of the light-emitting unit away from the substrate.

14. The method for manufacturing a display panel according to claim 12, characterized in that, Before cleaning the first electrode material layer and the second electrode material layer with a solution, the method further includes: The first electrode is annealed.

15. An electronic device, characterized in that, The electronic device includes a display panel as described in any one of claims 1-9, or a display panel prepared by the method for preparing a display panel as described in any one of claims 10-14.

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