Display panel, manufacturing method thereof and display device

Abstract

The invention relates to a display panel, a manufacturing method thereof and a display device. The display panel comprises a substrate, a partition structure, a protection part and a light emitting unit, the partition structure is arranged on one side of the substrate and defines a first opening; the protection part at least partially covers at least part of the side wall, facing the first opening, of the partition structure; the light-emitting unit is arranged in the first opening. Therefore, the structural and dimensional stability of the isolator can be improved, the process yield is further improved, and the manufacturing yield of the display panel is improved.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and particularly to a display panel, a manufacturing method thereof, and a display device. Background Art

[0002] OLED (Organic Light-Emitting Diode) has the characteristics of self-luminescence, high brightness, wide viewing angle, high contrast ratio, flexibility, low energy consumption, etc., and thus has received extensive attention. As a new generation of display method, it has begun to gradually replace traditional liquid crystal displays and is widely used in mobile phone screens, computer monitors, full-color TVs, etc.

[0003] In the display panel in the related art, there is a problem of low manufacturing yield. Summary of the Invention

[0004] Based on this, the present application provides a display panel, a manufacturing method thereof, and a display device to improve the manufacturing yield of the display panel.

[0005] According to one aspect of the present application, a display panel is provided, including a substrate, a partition structure, a protection part, and a light-emitting unit; the partition structure is disposed on one side of the substrate and defines a first opening; the protection part at least partially covers at least a part of the sidewall of the partition structure facing the first opening; the light-emitting unit is disposed in the first opening.

[0006] In the display panel provided according to the embodiments of the present application, at least a part of the protection part covers at least a part of the sidewall of the partition structure facing the first opening; thus, when manufacturing the light-emitting unit disposed in the first opening defined by the partition structure, the protection part can provide protection for the sidewall of the partition structure facing the first opening, thereby improving the structural and dimensional stability of the partition structure in multiple patterning processes, further improving the structural and dimensional stability of the partition structure, and then improving the process yield and the manufacturing yield of the display panel. In addition, if the cathodes in the display panel are interconnected through the partition structure, by providing the protection part, the structural and dimensional stability of the partition structure is improved, thereby improving the overlapping yield between the cathode and the partition structure, further improving the manufacturing yield of the display panel, and improving the reliability of the display panel. In summary, the present application can improve the manufacturing yield and reliability of the display panel.

[0007] In one of the embodiments, the partition structure includes an isolation part, the isolation part defines the first opening, and the protection part covers at least a part of the sidewall of the isolation part facing the first opening.

[0008] In one embodiment, the partition structure further includes a blocking portion, the blocking portion is disposed on a side of the isolation portion away from the substrate, and an end portion of the blocking portion close to the first opening extends toward the center of the first opening so as to protrude from a side wall of the protection portion facing the first opening.

[0009] In one embodiment, the protection portion completely covers a side wall of the isolation portion facing the first opening. In one embodiment, the protection portion includes a first sub-portion, and the first sub-portion covers at least a part of the side wall of the isolation portion close to the first opening.

[0010] In one embodiment, the first sub-portion is in contact with a side of the substrate facing the first opening.

[0011] In one embodiment, the first sub-portion completely covers a side wall of the isolation portion facing the first opening.

[0012] In one embodiment, the protection portion further includes a second sub-portion connected to the first sub-portion, the second sub-portion covers a surface of the isolation portion on a side away from the substrate, and the blocking portion is located on a side of the second sub-portion away from the substrate.

[0013] In one embodiment, the blocking portion includes a first blocking sub-portion and a second blocking sub-portion, and the second blocking sub-portion is disposed on a side of the first blocking sub-portion away from the substrate.

[0014] In one embodiment, a positive projection of the first blocking sub-portion on the substrate is located within a positive projection of the second blocking sub-portion on the substrate.

[0015] In one embodiment, positive projections of the isolation portion and the protection portion on the substrate are located within a positive projection of the second blocking sub-portion on the substrate.

[0016] In one embodiment, the first blocking sub-portion covers a side of the isolation portion away from the substrate.

[0017] In one embodiment, the material of the first blocking sub-portion includes a conductive material or an insulating material.

[0018] In one embodiment, the material of the second blocking sub-portion includes a conductive material or an insulating material.

[0019] In one embodiment, the material of the first blocking sub-portion includes an inorganic material.

[0020] In one embodiment, the material of the second blocking sub-portion includes an inorganic material.

[0021] In one embodiment, the first blocking sub - portion and the second blocking sub - portion are made of the same material;

[0022] In one embodiment, the first blocking sub - portion and the second blocking sub - portion are made of different materials;

[0023] In one embodiment, the first blocking sub - portion and the second blocking sub - portion are formed by a single patterning process;

[0024] In one embodiment, the first blocking sub - portion and the second blocking sub - portion are formed by a step - by - step patterning process.

[0025] In one embodiment, the light - emitting unit includes a first electrode, a light - emitting functional portion, and a second electrode that are sequentially stacked in a direction away from the substrate. The partition structure is located on a side of the first electrode away from the substrate. The first opening exposes the first electrode, and the second electrode is connected to a part of the partition structure.

[0026] In one embodiment, the isolation portion further includes an insulating portion near the substrate side and a conductive portion away from the substrate side. The second electrode is electrically connected to the conductive portion, and the protection portion covers a part of the sidewall of the conductive portion facing the first opening.

[0027] In one embodiment, the protection portion covers a part of the sidewalls of the conductive portion and the insulating portion facing the first opening;

[0028] In one embodiment, the protection portion includes at least one metal layer.

[0029] In one embodiment, there is a spacing between the light - emitting functional portion and the partition structure.

[0030] In one embodiment, the display panel further includes an insulating layer, which is located between the partition structure and the first electrode; a second opening is formed in the insulating layer, and the second opening is correspondingly arranged with the first opening and exposes the first electrode; at least a part of the light - emitting functional portion is disposed in the second opening.

[0031] In one embodiment, the orthographic projection of the partition structure on the insulating layer is located at the periphery of the second opening.

[0032] In one embodiment, the insulating layer is made of an inorganic material.

[0033] According to another aspect of the present application, there is provided a method for manufacturing a display panel, including:

[0034] Providing a substrate;

[0035] A partition structure and a protection part are formed on one side of the substrate. The partition structure defines a first opening; at least part of the protection part covers at least part of the side wall of the isolation part facing the first opening.

[0036] A light-emitting unit is formed in the first opening.

[0037] According to the manufacturing method of the display panel provided by the embodiment of the present application, at least part of the protection part covers at least part of the side wall of the isolation part facing the first opening; thus, when the light-emitting unit is formed in the first opening defined by the partition structure through the patterning process, the protection part can provide protection for the side wall of the partition structure facing the first opening, thereby improving the structural and dimensional stability of the partition structure in multiple patterning processes, further improving the structural and dimensional stability of the partition structure, and then improving the process yield and the manufacturing yield of the display panel. In addition, if the cathodes in the display panel are interconnected through the partition structure, by providing the protection part, the structural and dimensional stability of the partition structure is improved, thereby improving the lap yield between the cathode and the partition structure, and then improving the manufacturing yield of the display panel and the reliability of the display panel. In summary, the present application can improve the manufacturing yield and reliability of the display panel.

[0038] In one embodiment, the partition structure includes an isolation part; the step of forming the partition structure and the protection part on one side of the substrate includes:

[0039] An isolation part and a protection part are formed on one side of the substrate. The isolation part defines the first opening, and at least part of the protection part covers at least part of the side wall of the isolation part facing the first opening.

[0040] In one embodiment, the partition structure further includes a blocking part; after forming the isolation part and the protection part on one side of the substrate, the step of forming the partition structure and the protection part on one side of the substrate further includes:

[0041] A blocking part is formed on the side of the isolation part away from the substrate. The end of the blocking part close to the first opening extends towards the center of the first opening so as to protrude from the side wall of the protection part facing the first opening.

[0042] In one embodiment, the step of forming the blocking part on the side of the isolation part away from the substrate includes:

[0043] A first sacrificial layer is formed on one side of the substrate. The first sacrificial layer fills the first opening and exposes the side of the isolation part away from the substrate.

[0044] A barrier material layer is formed on a side of the isolation portion away from the substrate, and the barrier material layer covers the side of the isolation portion away from the substrate and the side of the first sacrificial layer away from the substrate;

[0045] The barrier material layer is patterned and the first sacrificial layer is removed to obtain the barrier portion.

[0046] In one embodiment, the step of forming the first sacrificial layer on one side of the substrate includes:

[0047] The first sacrificial layer is formed on one side of the substrate; the first sacrificial layer covers the first opening and the side of the isolation portion away from the substrate;

[0048] The first sacrificial layer is patterned to obtain a sacrificial sub-portion filled in the first opening, and the side of the sacrificial sub-portion away from the substrate is flush with or higher than the side of the isolation portion away from the substrate.

[0049] In one embodiment, the material of the first sacrificial layer is photoresist.

[0050] In one embodiment, the step of forming the isolation portion and the protection portion on one side of the substrate includes:

[0051] An isolation material layer is formed on one side of the substrate, and the isolation material layer is patterned to obtain the isolation portion defining the first opening;

[0052] A protection material layer is formed on a side of the isolation portion away from the substrate, and the protection material layer is patterned to obtain a protection portion at least partially covering at least a portion of the sidewall of the isolation portion facing the first sub-opening.

[0053] In one embodiment, the step of forming the isolation portion and the protection portion on one side of the substrate includes:

[0054] A second sacrificial layer is formed on one side of the substrate and the second sacrificial layer is patterned;

[0055] An isolation material layer and a protection material layer are sequentially formed on a side of the substrate close to the second sacrificial layer and are patterned to obtain the isolation portion defining the first opening, and a protection portion at least partially covering at least a portion of the sidewall of the isolation portion facing the first opening.

[0056] In one embodiment, the step of forming the second sacrificial layer on one side of the substrate and patterning the second sacrificial layer includes:

[0057] The second sacrificial layer is formed on one side of the substrate, and the second sacrificial layer is patterned to form a plurality of third openings thereon. The third openings include a first end away from the substrate and a second end close to the substrate, and the projection of the periphery of the first end on the substrate is located within the projection of the periphery of the second end on the substrate.

[0058] In one embodiment, the step of sequentially forming an isolation material layer and a protection material layer on the side of the substrate close to the second sacrificial layer and performing a patterning process includes:

[0059] An isolation material layer and a protection material layer are formed within the third openings and on the side of the second sacrificial layer away from the substrate, and the protection material layer is located on the side of the isolation material layer away from the substrate.

[0060] The second sacrificial layer is removed to obtain the isolation portion defining the first opening and a protection portion at least partially covering at least a part of the sidewall of the isolation portion facing the first opening.

[0061] In one embodiment, the material of the second sacrificial layer is photoresist.

[0062] According to another aspect of the present application, a display panel is provided, including a substrate, a partition structure, and a light-emitting unit; the partition structure is disposed on one side of the substrate and defines a first opening; the partition structure includes an isolation body and a blocking portion; the blocking portion is disposed on the side of the isolation body away from the substrate; an end of the blocking portion close to the first opening extends toward the center of the first opening so as to protrude from the sidewall of the isolation body facing the first opening; the isolation body includes an isolation portion and a protection portion, and at least a part of the protection portion covers at least a part of the sidewall of the isolation portion facing the first opening; the light-emitting unit is disposed within the first opening.

[0063] According to the display panel provided by the embodiment of the present application, by making the isolation body include an isolation portion and a protection portion, at least a part of the protection portion covers at least a part of the sidewall of the isolation portion facing the first opening; thus, when manufacturing the light-emitting unit disposed within the first opening defined by the partition structure, the protection portion can provide protection for the sidewall of the isolation portion facing the first opening, thereby improving the structural and dimensional stability of the isolation portion in multiple patterning processes, further improving the structural and dimensional stability of the isolation body, and then improving the process yield and the manufacturing yield of the display panel. In addition, if the cathodes of the light-emitting units are interconnected through the isolation body, by providing the protection portion, the structural and dimensional stability of the isolation body is improved, thereby improving the overlapping yield between the cathode and the isolation body, and then improving the manufacturing yield of the display panel and the reliability of the display panel. In summary, the present application can improve the manufacturing yield and reliability of the display panel.

[0064] According to another aspect of the present application, there is provided a display device, characterized by including the display panel described in any of the above embodiments. In this way, the manufacturing yield of the display device can be improved, and the reliability of the display device can be enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 It is a schematic cross-sectional view of a display panel in an embodiment of the present application.

[0066] Figure 2 is Figure 1 A schematic cross-sectional view of a partition structure of the shown display panel.

[0067] Figure 3 is Figure 1 A schematic cross-sectional view of another partition structure of the shown display panel.

[0068] Figure 4 is Figure 1 A schematic cross-sectional view of still another partition structure of the shown display panel.

[0069] Figure 5 is Figure 1 A schematic cross-sectional view of yet another partition structure of the shown display panel.

[0070] Figure 6 It is a partial top view schematic of a display panel in an embodiment of the present application.

[0071] Figure 7 It is a flowchart of a manufacturing method of a display panel in an embodiment of the present application.

[0072] Figure 8 is Figure 7 A flowchart of a method for manufacturing a partition structure in the manufacturing method of the shown display panel.

[0073] Figure 9 is Figure 8 A flowchart of a method for manufacturing a blocking portion of a partition structure in the manufacturing method of the shown display panel.

[0074] Figure 10 is Figure 8 A flowchart of another method for manufacturing a blocking portion of a partition structure in the manufacturing method of the shown display panel.

[0075] Figure 11 is Figure 7 A flowchart of a method for manufacturing an isolation body of a partition structure in the manufacturing method of the shown display panel.

[0076] Figure 12 is Figure 7Another flowchart for manufacturing the isolation body of the partition structure in the method for manufacturing the display panel shown.

[0077] Figure 13 For Figure 7 Another flowchart for manufacturing the isolation body of the partition structure in the method for manufacturing the display panel shown.

[0078] Figure 14 A process flowchart of the method for manufacturing the display panel in an embodiment of the present application.

[0079] Figure 15 Another process flowchart of the method for manufacturing the display panel in another embodiment of the present application.

[0080] Figure 16 Another process flowchart of the method for manufacturing the display panel in another embodiment of the present application.

[0081] Figure 17 Another process flowchart of the method for manufacturing the display panel in another embodiment of the present application.

[0082] Figure 18 A schematic structural diagram of the display device in an embodiment of the present application.

[0083] 1. Display device; 10. Display panel; 11. Substrate; 12. Partition structure; 12a. First opening; 121. Isolation body; 1211. Isolation part; 1211a. First metal layer; 1211b. Second metal layer; 1212. Protection part; 1212a. First sub - part; 1212b. Second sub - part; 122. Blocking part; 1221. First blocking sub - part; 1222. Second blocking sub - part; 13. Light - emitting unit; 131. First electrode; 132. Light - emitting functional part; 133. Second electrode; 14. Insulating layer; 14a. Second opening; 15. First sacrificial layer; 151. Sacrificial sub - part; 16. Second sacrificial layer; 16a. Third opening. Detailed implementation manners

[0084] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure content of the present application more thorough and comprehensive.

[0085] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used herein in the specification of this application are for the purpose of describing particular embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0086] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or there can also be intervening elements. Further, when a layer is referred to as being "under" another layer, it can be directly below or there can be one or more light-emitting units. It can also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or there can also be one or more light-emitting units.

[0087] In cases where "comprising", "having", and "including" as described herein are used, unless an explicit limiting term such as "only", "consisting of", etc. is used, another component can also be added. Unless otherwise mentioned, terms in the singular form can include the plural form and should not be construed as having a quantity of one.

[0088] It should be understood that although terms such as "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, the first element can be referred to as the second element, and similarly, the second element can be referred to as the first element.

[0089] It should also be understood that when interpreting an element, although not explicitly described, the element is interpreted as including an error range, and this error range should be within the acceptable deviation of a specific value determined by those skilled in the art. For example, "about", "approximately", or "substantially" can mean within one or more standard deviations, which are not defined herein.

[0090] In addition, in the specification, the phrase "schematic diagram of planar distribution" refers to the drawing when observing the target part from above, and the phrase "schematic cross-sectional view" refers to the drawing when observing the cross-section intercepted by vertically cutting the target part from the side.

[0091] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are only drawn by way of example in the drawings and not necessarily to the true scale.

[0092] OLED (Organic Light-Emitting Diode) has the characteristics of self-luminescence, high brightness, wide viewing angle, high contrast, flexibility, low power consumption, etc. Therefore, it has received extensive attention and, as a new generation of display method, has begun to gradually replace traditional liquid crystal displays and is widely used in mobile phone screens, computer monitors, full-color TVs, etc.

[0093] However, the display panels in related technologies have the problem of low manufacturing yield. After research, the inventor found that the reason for the above problem is that full-color display is mainly achieved by three colors of red sub-pixels (RED, abbreviated as R), green sub-pixels (GREEN, abbreviated as G), and blue sub-pixels (BLUE, abbreviated as B) in the OLED display panel. When manufacturing the display panel, multiple patterning processes are required. For example, when manufacturing red sub-pixels, green sub-pixels, and blue sub-pixels, three patterning processes are required. In multiple patterning processes, due to the influence of processes such as etching, the size and structure of the isolation structure are likely to change, reducing the stability of the evaporation process window conditions of the display panel, reducing the process yield of the display panel, and further reducing the manufacturing yield of the display panel.

[0094] Based on the above technical problems, the present application provides a display panel, a manufacturing method thereof, and a display device to improve the manufacturing yield of the display panel.

[0095] In the first aspect, referring to Figure 1 and Figure 6 as shown, an embodiment of the present application provides a display panel 10, including a substrate 11, a partition structure 12, a protection part 1212, and a light-emitting unit 13; the partition structure 12 is disposed on one side of the substrate 11 and defines a first opening 12a; at least part of the protection part 1212 covers at least part of the side wall of the partition structure 12 facing the first opening 12a; the light-emitting unit 13 is disposed in the first opening 12a.

[0096] Specifically, the display panel 10 may be an organic light-emitting diode display panel (Organic Light Emitting Diode, abbreviated as OLED), a quantum dot light-emitting diode display panel (Quantum Dot Light Emitting Diodes, abbreviated as QLED), etc.

[0097] The substrate 11 may include a substrate and a driving circuit layer disposed on the substrate. Among them, the substrate may be a rigid substrate or a flexible substrate. When the substrate is a rigid substrate, the material of the substrate may be glass or silicon wafer, etc. When the substrate is a flexible substrate, the material of the substrate may be polyimide.

[0098] The partition structure 12 can define a plurality of first openings 12a. The orthographic projection of the partition structure 12 on the substrate 11 can be grid-shaped or an independent ring shape. The number of the light-emitting units 13 can be multiple, and the multiple light-emitting units 13 are correspondingly arranged in the multiple first openings 12a one by one. The partition structure 12 can partition the light-emitting materials of the light-emitting units 13 on different sides thereof, so as to avoid crosstalk between the light-emitting units 13 of different colors.

[0099] According to the display panel 10 provided by the embodiment of the present application, at least part of the protection part 1212 covers at least part of the side wall of the partition structure 12 facing the first opening 12a; thus, when manufacturing the light-emitting unit 13 arranged in the first opening 12a defined by the partition structure 12, the protection part 1212 can provide protection for the side wall of the partition structure 12 facing the first opening 12a, so as to improve the structural and dimensional stability of the partition structure 12 in multiple patterning processes, and further improve the structural and dimensional stability of the partition structure 12, thereby improving the process yield and the manufacturing yield of the display panel 10. In addition, if the cathodes in the light-emitting units 13 are connected to each other through the partition structure 12, by providing the protection part 1212, the structural and dimensional stability of the partition structure 12 is improved, so as to improve the overlapping yield between the cathode and the partition structure 12, and further improve the manufacturing yield of the display panel 10 and the reliability of the display panel 10. In summary, the present application can improve the manufacturing yield and reliability of the display panel 10.

[0100] As Figure 1 shown, in one embodiment, the partition structure 12 includes a separation part 1211, the separation part 1211 defines the first opening 12a, and the protection part 1212 covers at least part of the side wall of the separation part 1211 facing the first opening 12a.

[0101] Thus, by making at least part of the protection part 1212 cover at least part of the side wall of the separation part 1211 facing the first opening 12a, in this way, when manufacturing the light-emitting unit 13, the protection part 1212 can provide protection for the side wall of the separation part 1211 facing the first opening 12a, so as to improve the structural and dimensional stability of the separation part 1211 in multiple patterning processes, and further improve the structural and dimensional stability of the separation part 1211, improve the process yield, and improve the manufacturing yield of the display panel 10. In addition, if the cathodes in the display panel 10 are connected to each other through the separation part 1211, the overlapping yield between the cathode and the separation part 1211 can be improved, so as to improve the manufacturing yield of the display panel 10 and the reliability of the display panel 10.

[0102] In a specific example, the cross-sectional shape of the separation part 1211 in the first plane is an inverted trapezoid, the first plane is parallel to the thickness direction of the substrate and perpendicular to the extending direction of the partition structure.

[0103] Thus, the light-emitting material layers located on different sides of the isolation portion 1211 can be separated by the isolation portion 1211, thereby avoiding crosstalk between the light-emitting units 13 of different colors.

[0104] As Figure 1 and Figure 2 shown, in one embodiment, the partition structure 12 further includes a blocking portion 122. The blocking portion 122 is disposed on a side of the isolation portion 1211 away from the substrate 11. An end of the blocking portion 122 facing the first opening 12a extends toward the center of the first opening 12a so as to protrude from a sidewall of the protection portion 1212 facing the first opening.

[0105] Thus, by disposing the blocking portion 122 on a side of the isolation portion 1211 away from the substrate 11; and the end of the blocking portion 122 close to the first opening 12a extends toward the center of the first opening 12a so as to protrude from the sidewall of the protection portion 1212 facing the first opening 12a, it is equivalent to forming an undercut structure with a "larger upper part and smaller lower part" for the partition structure 12, that is: the partition structure 12 has an "eaves". In this way, the light-emitting materials of adjacent light-emitting units 13 can be separated during the evaporation process, thereby avoiding crosstalk between the light-emitting units 13 of different colors.

[0106] As Figure 1 and Figure 2 shown, in one embodiment, the protection portion 1212 completely covers the sidewall of the isolation portion 1211 facing the first opening 12a.

[0107] Thus, the structural and dimensional stability of the isolation portion 1211 in multiple patterning processes can be effectively improved, and further, the structural and dimensional stability of the isolation portion 1211 can be improved, thereby improving the process yield and the manufacturing yield of the display panel 10. In addition, if the cathodes in the display panel 10 are interconnected through the isolation portion 1211, the lap joint yield between the cathode and the isolation portion 1211 can be improved, thereby improving the manufacturing yield of the display panel 10 and the reliability of the display panel 10.

[0108] As Figure 1 shown, in one embodiment, the protection portion 1212 includes a first sub-portion 1212a, and the first sub-portion 1212a covers at least a part of the sidewall of the isolation portion 1211 facing the first opening 12a.

[0109] Thus, the first sub-portion 1212a can be used to provide protection for the sidewall of the isolation portion 1211 facing the first opening 12a, improve the structural and dimensional stability of the isolation portion 1211, thereby improving the process yield of the display panel 10 and the lap joint yield between the cathode and the isolation portion 1211, and further improving the manufacturing yield and reliability of the display panel 10.

[0110] As Figure 1 shown, in one embodiment, the first sub - portion 1212a is in contact with one side of the substrate 11 facing the first opening 12a.

[0111] Thus, the first sub - portion 1212a can protect the side wall of the isolation portion 1211 facing the first opening 12a, especially the part of the side wall facing the substrate 11, improving the structural and dimensional stability of the isolation portion 1211, especially the dimension of the isolation portion 1211 on the side facing the substrate 11, thereby further improving the process yield of the display panel 10, further improving the overlap yield between the cathode and the isolation portion 1211, and further improving the manufacturing yield and reliability of the display panel 10. As Figure 1 、 Figure 3 shown, in one embodiment, the first sub - portion 1212a completely covers the side wall of the isolation portion 1211 facing the first opening 12a. Thus, the structural and dimensional stability of the isolation portion 1211 in multiple patterning processes can be effectively improved, and then the structural and dimensional stability of the isolation portion 1211 can be improved, further improving the process yield and the manufacturing yield of the display panel 10. In addition, when the cathodes in the display panel 10 are interconnected through the isolation portion 1211, the overlap yield between the cathode and the isolation portion 1211 can be improved, thereby improving the manufacturing yield of the display panel 10 and the reliability of the display panel 10.

[0112] As Figure 2 and Figure 4 shown, in one embodiment, the protection portion 1212 further includes a second sub - portion 1212b connected to the first sub - portion 1212a; the second sub - portion 1212b covers one side surface of the partition structure 12 away from the substrate 11.

[0113] Thus, the structural and dimensional stability of the partition structure 12 can be further improved, and the manufacturing yield and reliability of the display panel 10 can be further improved. On the other hand, it is convenient for the manufacture of the protection portion 1212 and can avoid affecting the structure and dimensions of the partition structure 12 during the manufacture of the protection portion 1212.

[0114] As Figure 2 and Figure 4 shown, in one embodiment, the second sub - portion 1212b covers one side surface of the isolation portion 1211 away from the substrate 11, and the blocking portion 122 is located on the side of the second sub - portion 1212b away from the substrate 11.

[0115] Thus, the isolation portion 1211 can be separated from the outside by using the first sub-portion 1212a and the second sub-portion 1212b, thereby further improving the structural and dimensional stability of the isolation portion 1211, further improving the structural and dimensional stability of the isolation body 121, and further improving the manufacturing yield and reliability of the display panel 10. In addition, the manufacturing of the protection portion 1212 can be facilitated, and the structure and dimensions of the isolation portion 1211 can be prevented from being affected during the manufacturing of the protection portion 1212.

[0116] As Figure 3 and Figure 4 shown, in one embodiment, the blocking portion 122 includes a first blocking sub-portion 1221 and a second blocking sub-portion 1222, and the second blocking sub-portion 1222 is disposed on a side of the first blocking sub-portion 1221 away from the substrate 11.

[0117] In this way, it is beneficial to increase the size of the partition structure 12 in the thickness direction of the substrate 11, beneficial to improve the isolation ability of the partition structure 12, expand the subsequent evaporation process window, thereby improving the manufacturing yield of the display panel 10 and improving the reliability of the display panel 10.

[0118] As Figure 3 and Figure 4 shown, in one embodiment, the orthographic projections of the isolation portion 1211 and the protection portion 1212 on the substrate 11 are located within the orthographic projection of the second blocking sub-portion 1222 on the substrate 11.

[0119] In this way, it can be ensured that the partition structure 12 forms an undercut structure with a larger upper part and a smaller lower part, that is, it is ensured that the partition structure 12 has an "eaves", so that the light-emitting material of the light-emitting unit 13 can be blocked, and crosstalk between different-color light-emitting units 13 can be avoided, thereby improving the display quality of the display panel 10.

[0120] As Figure 3 and Figure 4 shown, in one embodiment, the orthographic projection of the first blocking sub-portion 1221 on the substrate 11 is located within the orthographic projection of the second blocking sub-portion 1222 on the substrate 11. In a specific example, the first blocking sub-portion 1221 covers a side of the isolation portion 1211 away from the substrate 11.

[0121] In this way, the first blocking sub-portion 1221 can play an isolation role, which is equivalent to increasing the height of the isolation body 121, thereby being beneficial to improving the isolation ability of the partition structure 12, beneficial to expanding the evaporation process window, thereby improving the manufacturing yield of the display panel 10 and improving the reliability of the display panel 10.

[0122] In one embodiment, the materials of the first blocking sub - portion 1221 and the second blocking sub - portion 1222 are the same or different; specifically, the material of the first blocking sub - portion 1221 includes a conductive material or an insulating material; the material of the second blocking sub - portion 1222 includes a conductive material or an insulating material.

[0123] In one embodiment, the materials of both the first blocking sub - portion 1221 and the second blocking sub - portion 1222 are conductive materials.

[0124] In this way, on the one hand, the strength and hardness of the blocking portion 122 can be improved, so that the blocking portion 122 is not prone to collapse during the forming process of the partition structure 12, ensuring the projection relationship of the blocking portion 122, the isolation portion 1211, and the protection portion 1212 on the substrate 11, which is conducive to obtaining the partition structure 12 with the desired shape. On the other hand, when the material of the isolation portion 1211 includes a conductive material, by making the materials of both the first blocking sub - portion 1221 and the second blocking sub - portion 1222 be conductive materials, the resistance of the entire partition structure 12 can be reduced, thereby reducing the power consumption of the display panel 10.

[0125] In one embodiment, the materials of both the first blocking sub - portion 1221 and the second blocking sub - portion 1222 are insulating materials. Specifically, the materials of both the first blocking sub - portion 1221 and the second blocking sub - portion 1222 are inorganic materials.

[0126] In this way, the blocking portion 122 can be better integrated with the inorganic encapsulation layer, improving the encapsulation efficiency of the display panel 10, thereby improving the reliability of the display panel 10. At the same time, the inorganic material has good etching resistance, so the structural stability of the blocking portion 122 can be improved, ensuring the projection relationship of the blocking portion 122, the isolation portion 1211, and the protection portion 1212 on the substrate 11, which is conducive to obtaining the partition structure 12 with the desired shape.

[0127] In a specific example, the material of the first blocking sub - portion 1221 may include at least one of silicon oxide and silicon nitride. The material of the second blocking sub - portion 1222 may include at least one of silicon oxide and silicon nitride.

[0128] In one embodiment, the material of the first blocking sub - portion 1221 includes a conductive material, and the material of the second blocking sub - portion 1222 includes an insulating material. Specifically, the material of the first blocking sub - portion 1221 includes a conductive material, and the material of the second blocking sub - portion 1222 includes an inorganic material.

[0129] In this way, on the one hand, the structural stability of the blocking part 122 can be improved, the projection relationship between the blocking part 122 and the isolation body 121 on the substrate 11 can be ensured, which is beneficial to obtaining the partition structure 12 with the desired shape; on the other hand, the second blocking sub-part 1222 can be better integrated with the inorganic encapsulation layer, improving the encapsulation efficiency of the display panel 10, thereby improving the reliability of the display panel 10; furthermore, when the material of the isolation part 1211 includes a conductive material, by making the material of the first blocking sub-part 1221 include a conductive material, the resistance of the partition structure 12 can be reduced, thereby reducing the power consumption of the display panel 10.

[0130] In one embodiment, the materials of the first blocking sub-part and the second blocking sub-part may be the same or different;

[0131] In one embodiment, the first blocking sub-part and the second blocking sub-part may be formed by a single patterning process or a step-by-step patterning process.

[0132] As Figures 1 to 5 shown, in one embodiment, the light-emitting unit 13 includes a first electrode 131, a light-emitting functional part 132, and a second electrode 133 that are sequentially stacked in a direction away from the substrate 11. The partition structure 12 is located on the side of the first electrode 131 away from the substrate 11. The first opening 12a exposes the first electrode 131, and the second electrode 131 is connected to a part of the partition structure 12.

[0133] It should be noted that the first electrode 131 may be an anode, and the second electrode 133 may be a cathode. Both the first electrode 131 and the second electrode 133 are electrically connected to the driving circuit layer.

[0134] It can be understood that the light-emitting functional part 132 at least includes an emission layer (EML). In addition, it may also include one or more of a hole injection layer (HIL), a hole transport layer (HTL), an electron injection layer (EIL), an electron transport layer (ETL), a hole block layer (HBL), and an electron block layer (EBL). Alternatively, the light-emitting functional part 132 may also be a stacked emission layer, that is, it includes at least two emission layers and a charge generation layer (CGL) located between adjacent emission layers.

[0135] In one embodiment, the isolation portion 1211 further includes an insulating portion (not shown in the figure) facing the substrate 11 side and a conductive portion (not shown in the figure) facing away from the substrate side. The second electrode 133 is electrically connected to the conductive portion; the protection portion 1212 covers a part of the side wall of the conductive portion facing the first opening.

[0136] In one embodiment, the protection portion 1212 covers a part of the side walls of the conductive portion and the insulating portion facing the first opening.

[0137] Thus, through the insulating portion, insulation can be ensured between the first electrode and the partition structure, and between the first electrodes; by making the protection portion 1212 cover a part of the side walls of the conductive portion and the insulating portion facing the first opening, the stability of the structure and size of the isolation portion can be improved in this way, so that the reliability of the connection between the second electrode and the conductive portion can be improved, and further the resistance of the partition structure 12 can be reduced, thereby reducing the voltage drop between the plurality of second electrodes 133, and further improving the uniformity of the display screen brightness of the display panel 10 and improving the display quality of the display panel 10.

[0138] As Figure 5 shown, in one embodiment, the conductive portion includes at least one metal layer. In one example, the conductive portion includes one metal layer. Further, the material of the conductive portion includes at least one of metal, metal oxide, and metal nitride. Exemplarily, the metal can be silver, copper, titanium, aluminum, etc. The metal oxide can be tin oxide, zinc oxide, cadmium oxide, indium oxide, indium tin oxide, indium zinc oxide, gallium zinc oxide, aluminum zinc oxide, tantalum titanium oxide, etc. The metal nitride can be titanium nitride.

[0139] As Figure 5 shown, in another example, the conductive portion includes a first metal layer 1211a and a second metal layer 1211b stacked in a direction away from the substrate 11. The outer contour of the orthographic projection of the first metal layer 1211a on the substrate 11 is located outside the outer contour of the orthographic projection of the second metal layer 1211b on the substrate 11. Here, the first metal layer 1211a and the second metal layer 1211b are stacked in sequence in a direction away from the substrate 11. In one example, the material of the first metal layer 1211a can be Mo, and the material of the second metal layer 1211b can be Al.

[0140] In one embodiment, the material of the protection portion 1212 includes a conductive material, and the second electrode 133 of the light-emitting unit 13 is electrically connected to the protection portion 1212.

[0141] In one embodiment, the protection portion 1212 includes at least one metal layer.

[0142] In one embodiment, the material of the protection portion 1212 includes at least one of indium tin oxide and titanium nitride.

[0143] In this way, the influence of the dry and wet etching processes on the structure and dimensions of the isolation part 1211 can be prevented, the stability of the structure and dimensions of the isolation part 1211 can be improved, and thus the manufacturing yield of the display panel 10 can be increased.

[0144] As Figures 1 to 5 shown, in one embodiment, there is a spacing between the light-emitting functional part 132 and the partition structure 12.

[0145] Thus, it can be ensured that the film layers of the light-emitting units 13 of different colors are in a mutually insulated state, so that the problem of current crosstalk between adjacent light-emitting units 13 can be avoided. When the corresponding color light-emitting units 13 are lit, the current will not be laterally transmitted to adjacent light-emitting units 13, and thus the problem of color crosstalk of the display panel 10 can be prevented, improving the display effect.

[0146] As Figures 1 to 5 shown, in one embodiment, the display panel 10 further includes an insulating layer 14, and the insulating layer 14 is located between the partition structure 12 and the first electrode 131; a second opening 14a is formed in the insulating layer 14, and the second opening 14a is correspondingly arranged with the first opening 12a; the first electrode 131 is exposed through the second opening 14a; at least a part of the light-emitting functional part 132 is arranged in the second opening 14a. Specifically, the insulating layer 14 can be a pixel definition layer PDL or other insulating film layers. The insulating layer 14 can be used to insulate adjacent first electrodes 131 from each other and / or isolate the partition structure 12 from the first electrode 131 to make them insulated from each other.

[0147] As Figures 1 to 5 shown, in one embodiment, the orthographic projection of the partition structure 12 on the insulating layer 14 is located at the periphery of the second opening 14a.

[0148] In this way, the partition structure 12 can be prevented from restricting the light-emitting angle of the light-emitting unit 13.

[0149] In one embodiment, the partition structure 12 defines a plurality of first openings 12a, and a plurality of second openings 14a are formed in the insulating layer 14, and the plurality of second openings 14a are in one-to-one communication with the first openings 12a.

[0150] In this way, it is convenient to arrange the light-emitting units 13 on the substrate 11.

[0151] Here, it should be noted that "in one-to-one communication" means that each first opening 12a corresponds to a second opening 14a respectively.

[0152] In one embodiment, the material of the insulating layer 14 is an inorganic material. In a specific example, the material of the insulating layer 14 includes silicon nitride.

[0153] Thus, the insulating layer 14 can isolate water vapor and oxygen, improving the reliability of the display panel 10.

[0154] As Figure 7 shown, according to another aspect of the present application, there is provided a method for manufacturing a display panel 10, including:

[0155] S10. Provide a substrate 11;

[0156] S20. Form a partition structure 12 and a protection part 1212 on one side of the substrate 11. The partition structure 12 defines a first opening 12a; the protection part 1212 at least partially covers at least a part of the side wall of the isolation part 1211 facing the first opening 12a;

[0157] S30. Form a light-emitting unit 13 in the first opening 12a.

[0158] According to the method for manufacturing the display panel 10 provided by the embodiment of the present application, by making at least a part of the protection part 1212 cover at least a part of the side wall of the isolation part 1211 facing the first opening 12a; thus, when forming the light-emitting unit 13 in the first opening 12a defined by the partition structure 12 through a patterning process, the protection part 1212 can provide protection for the side wall of the partition structure 12 facing the first opening 12a, thereby improving the structural and dimensional stability of the partition structure 12 in multiple patterning processes, further improving the structural and dimensional stability of the partition structure 12, and then improving the process yield and the manufacturing yield of the display panel 10. In addition, if the cathodes in the display panel 10 are interconnected through the partition structure 12, by providing the protection part 1212, the structural and dimensional stability of the partition structure 12 is improved, thereby improving the overlapping yield between the cathode and the partition structure 12, further improving the manufacturing yield of the display panel 10, and improving the reliability of the display panel 10. In summary, the present application can improve the manufacturing yield and reliability of the display panel 10.

[0159] As Figure 8 , Figures 14 to 17 shown, in one embodiment, the partition structure 12 includes an isolation part 1211. In S20, forming the partition structure 12 and the protection part 1212 on one side of the substrate 11 includes:

[0160] S210. Form an isolation part 1211 and a protection part 1212 on one side of the substrate 11. The isolation part 1211 defines a first opening 12a, and the protection part 1212 at least partially covers at least a part of the side wall of the isolation part 1211 facing the first sub-opening 121a.

[0161] Thus, by covering at least a part of the protection portion 1212 on at least a part of the side wall of the isolation portion 1211 facing the first opening 12a, during the fabrication of the light-emitting unit 13, the protection portion 1212 can provide protection to the side wall of the isolation portion 1211 facing the first opening 12a, thereby improving the structural and dimensional stability of the isolation portion 1211 during multiple patterning processes, further improving the structural and dimensional stability of the isolation portion 1211, improving the process yield, and improving the fabrication yield of the display panel 10. Additionally, when the cathodes in the display panel 10 are interconnected through the isolation portion 1211, the lap yield between the cathode and the isolation portion 1211 can be improved, thereby improving the fabrication yield of the display panel 10 and enhancing the reliability of the display panel 10.

[0162] As Figure 8 , Figures 14 to 17 shown, in one embodiment, the partition structure 12 further includes a blocking portion 122;

[0163] After S210, S20 further includes:

[0164] S220. Form a blocking portion 122 on the side of the isolation portion 1211 away from the substrate 11. The end portion of the blocking portion 122 close to the first opening 12a extends towards the center of the first opening 12a so as to protrude from the side wall of the protection portion 1212 facing the first opening 12a.

[0165] In this way, it is convenient to form the partition structure 12 with the protection portion 1212 and having an "eaves", enabling the partition structure 12 to block the light-emitting material of the light-emitting unit 13, thereby avoiding crosstalk between light-emitting units 13 of different colors, improving the display quality of the display panel 10. At the same time, it is beneficial to improve the structural and dimensional stability of the partition structure 12, and improve the fabrication yield and reliability of the display panel 10.

[0166] As Figure 9 , Figure 14 , Figure 15 shown, in one embodiment, in S220, forming the blocking portion 122 on the side of the isolation portion 1211 away from the substrate 11 includes:

[0167] S221. Form a first sacrificial layer 15 on one side of the substrate 11. The first sacrificial layer 15 fills the first opening 12a and exposes the side of the isolation portion 1211 away from the substrate 11;

[0168] It should be noted that within the first opening 12a, the first sacrificial layer 15 covers the side of the protection portion 1212 away from the isolation portion 1211.

[0169] S222. Form a barrier material layer on the side of the isolation part 1211 away from the substrate 11. The barrier material layer covers the side of the isolation part 1211 away from the substrate 11 and the side of the first sacrificial layer 15 away from the substrate 11.

[0170] S223. Pattern the barrier material layer and remove the first sacrificial layer 15 to obtain the barrier part 122.

[0171] In this way, when patterning the barrier material layer, the first sacrificial layer 15 can be used to protect the isolation part 1211, the protection part 1212, and the side of the substrate 11 facing the first opening 12a, avoiding damage to the isolation part 1211 and the protection part 1212, improving the structural and dimensional stability of the partition structure 12. At the same time, damage to the side of the substrate 11 facing the first opening 12a can be avoided, improving the production yield.

[0172] As Figure 10 、 Figure 14 、 Figure 15 shown, in one embodiment, in S221, forming the first sacrificial layer 15 on one side of the substrate 11 includes:

[0173] S2211. Form the first sacrificial layer 15 on one side of the substrate 11. The first sacrificial layer 15 covers the first opening 12a and the side of the isolation part 121 away from the substrate 11.

[0174] S2212. Pattern the first sacrificial layer 15 to obtain the sacrificial sub - part 151 filled in the first opening 12a. The side of the sacrificial sub - part 151 away from the substrate 11 is flush with the side of the isolation part 1211 away from the substrate 11; or, the side of the sacrificial sub - part 151 away from the substrate 11 protrudes from the side of the isolation part 1211 away from the substrate 11.

[0175] In this way, when forming the barrier part 122, the sacrificial sub - part 151 can protect the isolation part 1211, the protection part 1212, and the side of the substrate 11 facing the first opening 12a, improving the production yield; when the side of the sacrificial sub - part 151 away from the substrate 11 is flush with the side of the isolation part 1211 away from the substrate 11, a single - layer barrier part 122 can be formed; when the side of the sacrificial sub - part 151 away from the substrate 11 protrudes from the side of the isolation part 121 away from the substrate 11, a laminated barrier part 122 including a first barrier sub - part 1221 and a second barrier sub - part 1222 can be formed. That is to say, by regulating the size of the first sacrificial layer 15 in the thickness direction of the substrate 11 and the patterning of the first sacrificial layer 15, it is convenient to form barrier parts 122 with different structures and thicknesses, thereby increasing the structural and dimensional flexibility of the partition structure 12, increasing the adjustability of the isolation ability of the partition structure 12, and thus facilitating the expansion of the subsequent evaporation process window.

[0176] In one embodiment, the material of the first sacrificial layer 15 is photoresist.

[0177] As Figure 11 , Figure 14 , Figure 15 As shown, in one embodiment, in S210, an isolation portion 1211 and a protection portion 1212 are formed on one side of the substrate 11, including:

[0178] S211a. An isolation material layer is formed on one side of the substrate 11, and the isolation material layer is patterned to obtain the isolation portion 1211 defining the first opening 12a;

[0179] S212a. A protection material layer is formed on the side of the isolation portion 1211 away from the substrate 11, and the protection material layer is patterned to obtain the protection portion 1212 at least partially covering at least a part of the side wall of the isolation portion 1211 facing the first opening 12a.

[0180] In this way, it is convenient to obtain the isolation portion 1211 and the protection portion 1212.

[0181] As Figure 12 , Figure 16 , Figure 17 As shown, in one embodiment, in S210, an isolation portion 1211 and a protection portion 1212 are formed on one side of the substrate 11, including:

[0182] S211b. A second sacrificial layer 16 is formed on one side of the substrate 11, and the second sacrificial layer 16 is patterned;

[0183] S212b. An isolation material layer and a protection material layer are sequentially formed on the side of the substrate 11 close to the second sacrificial layer 16 and patterned to obtain the isolation portion 1211 defining the first opening 12a and the protection portion 1212 at least partially covering at least a part of the side wall of the isolation portion 1211 facing the first opening 12a.

[0184] In this way, the second sacrificial layer 16 can act as a mask layer, which can protect the substrate 11 while facilitating the fabrication of the isolation portion 1211 and the protection portion 1212, reducing the number of patterning times, greatly reducing the etching amount, and improving the fabrication efficiency of the display panel 10.

[0185] As Figure 13 , Figure 16 , Figure 17 As shown, in one embodiment, the step of forming the second sacrificial layer 16 on one side of the substrate 11 and patterning the second sacrificial layer 16 in S211b includes:

[0186] A second sacrificial layer 16 is formed on one side of the substrate 11, and the second sacrificial layer 16 is patterned to form a plurality of third openings 16a thereon. The third openings 16a include a first end away from the substrate 11 and a second end close to the substrate 11. The orthographic projection of the periphery of the first end on the substrate 11 is located within the orthographic projection of the periphery of the second end on the substrate 11.

[0187] Thus, the third openings 16a can be used for positioning, facilitating the fabrication of the isolation portion 1211 and the protection portion 1212, and improving the position accuracy of the isolation portion 1211 and the protection portion 1212. In addition, the third openings 16a include a first end away from the substrate 11 and a second end close to the substrate 11. By making the orthographic projection of the periphery of the first end on the substrate 11 located within the orthographic projection of the periphery of the second end on the substrate 11, when forming the barrier material layer, the barrier material layer on the side of the second sacrificial layer 16 away from the substrate 11 can be disconnected from the barrier material layer within the third openings 16a, thereby facilitating the removal of the barrier material layer on the side of the second sacrificial layer 16 away from the substrate 11 to obtain the isolation portion 1211 and the protection portion 1212 with the required structure.

[0188] In a specific example, the cross-sectional shape of the third opening 16a can be a regular trapezoid.

[0189] Such as Figure 13 、 Figure 16 、 Figure 17 As shown, in one embodiment, S212b, the step of sequentially forming an isolation material layer and a protection material layer on the side of the substrate 11 close to the second sacrificial layer 16 and performing a patterning process includes:

[0190] S2121b, forming an isolation material layer and a protection material layer within the third openings 16a and on the side of the second sacrificial layer 16 away from the substrate 11, with the protection material layer located on the side of the isolation material layer away from the substrate 11;

[0191] S2122b, removing the second sacrificial layer 16; obtaining the isolation portion 1211 that defines the first opening 12a, and the protection portion 1212 that at least partially covers at least a part of the sidewall of the isolation portion 1211 close to the first opening 12a.

[0192] Thus, the isolation portion 1211 and the protection portion 1212 can be formed within the third openings 16a. When removing the second sacrificial layer 16, the isolation material layer and the protection material layer on the side of the second sacrificial layer 16 away from the substrate 11 can be removed together, thereby improving the size accuracy and position accuracy of the isolation portion 1211, reducing the number of patterning times, greatly reducing the etching amount, and effectively improving the manufacturing efficiency of the display panel 10.

[0193] In one embodiment, the material of the second sacrificial layer 16 is photoresist.

[0194] As Figures 1 to 6 shown, according to another aspect of the present application, there is provided a display panel 10, including a substrate 11, a partition structure 12, and a light-emitting unit 13; the partition structure 12 is disposed on one side of the substrate 11 and defines a first opening 12a; the partition structure 12 includes a separator 121 and a blocking portion 122; the blocking portion 122 is disposed on a side of the separator 121 away from the substrate 11; an end of the blocking portion 122 close to the first opening 12a extends toward the center of the first opening 12a so as to protrude from a sidewall of the separator 121 facing the first opening 12a; the separator 121 includes a separating portion 1211 and an auxiliary portion 1212, and at least a part of the auxiliary portion 1212 covers at least a part of a sidewall of the separating portion 1211 facing the first opening 12a; the light-emitting unit 13 is disposed in the first opening 12a.

[0195] According to the display panel 10 provided by the embodiment of the present application, by making the separator 121 include the separating portion 1211 and the auxiliary portion 1212, at least a part of the auxiliary portion 1212 covers at least a part of a sidewall of the separating portion 1211 facing the first opening 12a; thus, when manufacturing the light-emitting unit 13 disposed in the first opening 12a defined by the partition structure 12, the auxiliary portion 1212 can provide protection for the sidewall of the separating portion 1211 facing the first opening 12a, thereby improving the structural and dimensional stability of the separating portion 1211 in multiple patterning processes, further improving the structural and dimensional stability of the separator 121, further improving the process yield, and improving the manufacturing yield of the display panel 10. In addition, when the cathodes in the display panel 10 are interconnected through the separator 121, by providing the auxiliary portion 1212, the structural and dimensional stability of the separator 121 is improved, thereby improving the lap yield between the cathode and the separator 121, further improving the manufacturing yield of the display panel 10, and improving the reliability of the display panel 10. In summary, the present application can improve the manufacturing yield and reliability of the display panel 10.

[0196] As Figure 18 shown, according to another aspect of the present application, there is provided a display device 1, including the display panel 10 described in any of the above embodiments. In this way, the manufacturing yield of the display device can be improved, and the reliability of the display device can be improved.

[0197] The display device 1 can be a laptop computer, mobile phone, wireless device, personal digital assistant (PDA), handheld or portable computer, GPS receiver / navigator, camera, MP4 video player, video camera, game console, watch, clock, calculator, television monitor, flat panel display, computer monitor, automotive display (e.g., odometer display, etc.), navigator, cockpit controller and / or display, display for a camera view (e.g., display for a rearview camera in a vehicle), digital photo, electronic billboard or sign, projector, etc.

[0198] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0199] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A display panel, characterized in that, Comprising: A substrate; A partition structure disposed on one side of the substrate and defining a first opening; A protection part, at least part of the protection part covering at least part of the side wall of the partition structure facing the first opening; A light-emitting unit disposed within the first opening.

2. The display panel according to claim 1, characterized in that, The partition structure includes an isolation part that defines the first opening, and the protection part covers at least part of the side wall of the isolation part facing the first opening; Optionally, the partition structure further includes a blocking part disposed on the side of the isolation part away from the substrate, and an end of the blocking part close to the first opening extends towards the center of the first opening so as to protrude from the side wall of the protection part facing the first opening; Optionally, the protection part completely covers the side wall of the isolation part facing the first opening.

3. The display panel according to claim 2, characterized in that, The protection part includes a first sub-part that covers at least part of the side wall of the isolation part facing the first opening; Optionally, the first sub-part is connected to the side of the substrate facing the first opening; Optionally, the first sub-part completely covers the side wall of the isolation part facing the first opening; Optionally, the protection part further includes a second sub-part connected to the first sub-part, the second sub-part covering the surface of the isolation part away from the substrate, and the blocking part is located on the side of the second sub-part away from the substrate.

4. The display panel according to claim 2, characterized in that, The blocking part includes a first blocking sub-part and a second blocking sub-part, the first blocking sub-part is disposed on the side of the isolation part away from the substrate, and the second blocking sub-part is disposed on the side of the first blocking sub-part away from the substrate; Optionally, the orthographic projection of the first blocking sub-part on the substrate is located within the orthographic projection of the second blocking sub-part on the substrate; Optionally, the orthographic projections of the isolation part and the protection part on the substrate are located within the orthographic projection of the second blocking sub-part on the substrate; Optionally, the first blocking sub-part covers the side of the isolation part away from the substrate; Optionally, the material of the first blocking sub-part includes a conductive material or an insulating material; Optionally, the material of the second blocking sub-part includes a conductive material or an insulating material; Optionally, the material of the first blocking sub-part includes an inorganic material; Optionally, the material of the second blocking sub-part includes an inorganic material; Optionally, the materials of the first blocking sub-part and the second blocking sub-part are the same; Optionally, the materials of the first blocking sub-part and the second blocking sub-part are different; Optionally, the first blocking sub-part and the second blocking sub-part are formed by a single patterning process; Optionally, the first blocking sub-part and the second blocking sub-part are formed by a step-by-step patterning process.

5. The display panel according to claim 2, characterized in that, The light-emitting unit includes a first electrode, a light-emitting functional part, and a second electrode that are sequentially stacked in a direction away from the substrate. The partition structure is located on the side of the first electrode away from the substrate. The first opening exposes the first electrode, and the second electrode is connected to part of the partition structure; Optionally, the isolation part further includes an insulating part on the side close to the substrate and a conductive part on the side far from the substrate, and the second electrode is electrically connected to the conductive part; The protection part covers a part of the side wall of the conductive part facing the first opening; Optionally, the protection part covers a part of the side walls of the conductive part and the insulating part facing the first opening; Optionally, the material of the protection part includes a conductive material, and the second electrode of the light-emitting unit is electrically connected to the protection part; Optionally, the protection part includes at least one metal layer; Optionally, there is a spacing between the light-emitting functional part and the partition structure; Optionally, the display panel further includes an insulating layer, and the insulating layer is located between the partition structure and the first electrode; a second opening is formed in the insulating layer, the second opening is arranged corresponding to the first opening, and the second opening exposes the first electrode; at least part of the light-emitting functional part is arranged in the second opening; Optionally, the orthographic projection of the partition structure on the insulating layer is located on the periphery of the second opening; Optionally, the material of the insulating layer is an inorganic material.

6. A method for manufacturing a display panel, characterized in that, Including: Providing a substrate; Forming a partition structure and a protection part on one side of the substrate, and the partition structure defines a first opening; The protection part at least partially covers the side wall of the partition structure facing the first opening; Forming a light-emitting unit in the first opening.

7. The method for manufacturing a display panel according to claim 6, characterized in that, The partition structure includes an isolation part; The step of forming the partition structure and the protection part on one side of the substrate includes: Forming an isolation part and a protection part on one side of the substrate, the isolation part defines the first opening, and the protection part at least partially covers at least part of the side wall of the isolation part facing the first opening; Optionally, the partition structure further includes a blocking part; After forming the isolation part and the protection part on one side of the substrate, the step of forming the partition structure and the protection part on one side of the substrate further includes: Forming a blocking part on the side of the isolation part far from the substrate, and the end of the blocking part close to the first opening extends towards the center of the first opening so as to protrude from the side wall of the protection part facing the first opening; Optionally, the step of forming the blocking part on the side of the isolation part far from the substrate includes: Forming a first sacrificial layer on one side of the substrate, the first sacrificial layer fills the first opening and exposes the side of the isolation part far from the substrate; Forming a blocking material layer on the side of the isolation part far from the substrate, and the blocking material layer covers the side of the isolation part far from the substrate and the side of the first sacrificial layer far from the substrate; Performing a patterning process on the blocking material layer and removing the first sacrificial layer to obtain the blocking part; Optionally, the step of forming the first sacrificial layer on one side of the substrate includes: Forming a first sacrificial layer on one side of the substrate; the first sacrificial layer covers the first opening and the side of the isolation part far from the substrate; Pattern the first sacrificial layer to obtain a sacrificial sub - portion filled in the first opening, and the side of the sacrificial sub - portion away from the substrate is flush with or higher than the side of the isolation portion away from the substrate; Optionally, the material of the first sacrificial layer is photoresist.

8. The method for manufacturing a display panel according to claim 7, characterized in that, The step of forming the isolation portion and the protection portion on one side of the substrate includes: Form an isolation material layer on one side of the substrate, and pattern the isolation material layer to obtain the isolation portion defining the first opening; Form a protection material layer on the side of the isolation portion away from the substrate, and pattern the protection material layer to obtain a protection portion that at least partially covers at least a part of the side wall of the isolation portion facing the first opening.

9. The method for manufacturing a display panel according to claim 7, characterized in that, The step of forming the isolation portion and the protection portion on one side of the substrate includes: Form a second sacrificial layer on one side of the substrate, and pattern the second sacrificial layer; Form an isolation material layer and a protection material layer in sequence on the side of the substrate close to the second sacrificial layer, and perform patterning to obtain the isolation portion defining the first opening, and a protection portion that at least partially covers at least a part of the side wall of the isolation portion facing the first opening; Optionally, the step of forming the second sacrificial layer on one side of the substrate and patterning the second sacrificial layer includes: Form the second sacrificial layer on one side of the substrate, and pattern the second sacrificial layer to form a plurality of third openings on the second sacrificial layer. The third openings include a first end away from the substrate and a second end close to the substrate, and the orthographic projection of the periphery of the first end on the substrate is located within the orthographic projection of the periphery of the second end on the substrate; Optionally, the step of forming an isolation material layer and a protection material layer in sequence on the side of the substrate close to the second sacrificial layer and performing patterning includes: Form an isolation material layer and a protection material layer in the second opening and on the side of the second sacrificial layer away from the substrate, and the protection material layer is located on the side of the isolation material layer away from the substrate; Remove the second sacrificial layer; obtain the isolation portion defining the first opening, and a protection portion that at least partially covers at least a part of the side wall of the isolation portion facing the first opening; Optionally, the material of the second sacrificial layer is photoresist.

10. A display panel, characterized in that, Includes: Substrate; A partition structure is provided on one side of the substrate and defines a first opening; the partition structure includes an isolation body and a blocking portion; The blocking portion is provided on the side of the isolation body away from the substrate; the end of the blocking portion close to the first opening extends towards the center of the first opening to protrude from the side wall of the isolation body facing the first opening; the isolation body includes an isolation portion and a protection portion, and at least a part of the protection portion covers at least a part of the side wall of the isolation portion facing the first opening; A light - emitting unit is provided in the first opening.

11. A display device, characterized in that, Includes the display panel according to any one of claims 1 to 5 and 10.

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