Display panel, manufacturing method thereof and display device

Abstract

The invention is suitable for the technical field of display equipment, and provides a display panel, a manufacturing method of the display panel and a display device. The isolation structure is arranged on one side of the substrate, and an isolation opening is defined by the isolation structure; the light-emitting layer is arranged on one side of the substrate, and the light-emitting layer comprises a plurality of light-emitting units which are arranged at intervals; the packaging layer is arranged on the side, away from the substrate, of the light-emitting layer, the packaging layer comprises a plurality of packaging units, main body parts of the packaging units cover the surfaces of the sides, away from the substrate, of the light-emitting units, the first extension parts are located on the sides, away from the substrate, of the isolation structures, and the first extension parts and the isolation structures are arranged at intervals; and the cushion layer is arranged on the side, away from the substrate, of at least part of the isolation structure, and the orthographic projection contour of the cushion layer on the isolation structure is at least partially overlapped with the orthographic projection contour of the first extension part on the isolation structure. According to the display panel, the problem that dark spots appear on the light-emitting units can be avoided, and the display effect of the display panel is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of display devices, and in particular, relates to a display panel and a manufacturing method thereof, and a display device. Background Art

[0002] With the development of display technology, OLED (Organic Light Emitting Diode) display panels have been widely used due to their advantages such as lighter weight, higher brightness, lower power consumption, faster response and higher definition.

[0003] In the manufacturing process of display panels in related technologies, dark spots may easily appear in the light-emitting units, thus affecting the display effect. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a display panel and a manufacturing method thereof, and a display device to solve the problem that dark spots exist in the light-emitting units of the current display panel, which affects the display effect.

[0005] A first aspect of an embodiment of the present application provides a display panel, comprising: a substrate; an isolation structure, arranged on one side of the substrate, the isolation structure enclosing an isolation opening; a light-emitting layer, arranged on one side of the substrate, the light-emitting layer comprising a plurality of light-emitting units spaced apart from each other, the light-emitting units being arranged corresponding to the isolation opening; an encapsulation layer, arranged on a side of the light-emitting layer away from the substrate, the encapsulation layer comprising a plurality of encapsulation units, each of the encapsulation units being arranged corresponding to each of the light-emitting units, the encapsulation units comprising a main body portion and a first extension portion connected to each other, the main body portion covering a surface of the light-emitting unit on a side away from the substrate, the first extension portion being located on a side of the isolation structure away from the substrate, and the first extension portion and the isolation structure being spaced apart from each other; and a cushion layer, arranged on a side of at least part of the isolation structure away from the substrate, the contour of the cushion layer's orthographic projection on the isolation structure at least partially overlapping with the contour of the first extension portion's orthographic projection on the isolation structure.

[0006] The above-mentioned display panel is provided with a packaging unit including a main body and a first extension part connected to each other, and a cushion layer is provided on the side of the isolation structure away from the substrate, so that the positive projection contour of the cushion layer on the isolation structure at least partially overlaps with the positive projection contour of the first extension part on the isolation structure. In this way, the cushion layer can form a closed coating structure on the isolation structure together with the first extension part, thereby reducing the influence of the etching process on the light-emitting unit during the manufacturing process, avoiding water vapor from invading the light-emitting unit along the gap position on the isolation structure, and thus not causing damage to the light-emitting unit, avoiding the problem of dark spots in the light-emitting unit, and improving the display effect of the display panel.

[0007] In one embodiment, the pad layer includes a first subpad layer, which at least partially covers a surface of the isolation structure facing away from the substrate; preferably, the first subpad layer at least partially covers a surface of the first extension portion facing away from the isolation structure.

[0008] In one embodiment, the light-emitting unit includes a first electrode, a light-emitting functional part, and a second electrode stacked in sequence, and the first sub-pad layer is in the same layer and made of the same material as the light-emitting functional part. By making the pad layer include the first sub-pad layer in the same layer and made of the same material as the light-emitting functional part, no additional steps are required in the production process of the first sub-pad layer, which simplifies the processing steps and reduces the production cost.

[0009] In one embodiment, the pad layer further includes a second subpad layer, and the second subpad layer at least partially covers a surface of the first subpad layer that is away from the isolation structure.

[0010] In one embodiment, the second subpad layer is in the same layer and made of the same material as the second electrode. By making the pad layer include the second subpad layer in the same layer and made of the same material as the second electrode, not only can the overall height of the pad layer be increased, so that it can better provide auxiliary support and stress sharing for the packaging unit, but also no additional process is required in the production process of the second subpad layer, thus simplifying the processing steps and reducing the production cost.

[0011] In one embodiment, the packaging unit further includes a second extension portion connected to the main body, the second extension portion is disposed on a side of the first extension portion away from the isolation structure, and the second extension portion at least partially covers a surface of the pad layer away from the isolation structure.

[0012] In one embodiment, the cushion layer includes a central portion and a peripheral portion connected to each other, the central portion covers the side surface of the isolation structure away from the substrate, and the peripheral portion is at least partially sandwiched between the first extension portion and the second extension portion. By making the central portion of the cushion layer cover the side surface of the isolation structure away from the substrate, and the peripheral portion is at least partially sandwiched between the first extension portion and the second extension portion, the covering structure formed on the isolation structure is more compact, and the effect of blocking water vapor intrusion is better.

[0013] In one embodiment, the second extensions located on the same side of the isolation structure are connected to each other to completely cover the side surface of the cushion layer away from the isolation structure. By connecting the second extensions located on the same side of the isolation structure to each other, another closed covering structure can be further formed on the side surface of the cushion layer away from the isolation structure, thereby enhancing the effect of blocking water vapor intrusion.

[0014] In one embodiment, the light-emitting unit includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit; the cushion layer is disposed on the isolation structure located at least partially around the first light-emitting unit; and / or the cushion layer is disposed on the isolation structure located at least partially around the second light-emitting unit; and / or the cushion layer is disposed on the isolation structure located at least partially around the third light-emitting unit. In this way, the cushion layer can be disposed on the isolation structure located at least partially around any one or several of the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit, so as to facilitate adjustment of the actual location of the cushion layer according to different process steps, thereby focusing on protecting the light-emitting units that are at a higher risk of water vapor intrusion, and also facilitating flexible adjustment of the process steps and simplifying the manufacturing process.

[0015] In one embodiment, the cushion layer is in the same layer and made of the same material as the third light-emitting unit. When the first light-emitting unit, the second light-emitting unit and the third light-emitting unit are sequentially manufactured and formed, the first light-emitting unit is subject to a higher risk of water vapor intrusion, the second light-emitting unit is subject to the second highest risk of water vapor intrusion, and the third light-emitting unit is subject to the lowest risk of water vapor intrusion. Therefore, making the cushion layer in the same layer and made of the same material as the third light-emitting unit can provide key protection for the first light-emitting unit and the second light-emitting unit, preventing water vapor from invading the first light-emitting unit and the second light-emitting unit along the side wall of the isolation structure, thereby preventing damage to the first light-emitting unit and the second light-emitting unit, and avoiding the problem of dark spots in the first light-emitting unit and the second light-emitting unit.

[0016] In one embodiment, the display panel further comprises a pixel defining layer, the pixel defining layer is arranged on one side of the substrate, the pixel defining layer defines a plurality of pixel openings spaced apart from each other, and each of the light-emitting units is arranged corresponding to each of the pixel openings; the isolation structure is arranged on a side of the pixel defining layer away from the substrate, and the isolation structure is located between at least partially adjacent two of the pixel openings. By arranging the pixel defining layer and the pixel openings defined by the pixel defining layer, arranging the light-emitting units corresponding to each of the pixel openings, and arranging the isolation structure on the pixel defining layer, it is convenient to arrange and shape the light-emitting units and the isolation structure.

[0017] In one embodiment, the isolation structure includes an isolation body and a blocking portion, wherein the blocking portion is located on a side of the isolation body away from the substrate, and the orthographic projection of the isolation body on the substrate is located within the orthographic projection of the blocking portion on the substrate; the main body also covers the side wall of the isolation body, and the first extension portion is located on a side of the blocking portion away from the substrate, and the first extension portion and the blocking portion are spaced apart from each other. By adopting the isolation structure designed as above, and making the first extension portion located on a side of the blocking portion away from the substrate, and the first extension portion and the blocking portion are spaced apart from each other, water vapor can be better blocked, and water vapor is prevented from invading the light-emitting unit along the side wall of the isolation structure, thereby preventing the light-emitting unit from being damaged.

[0018] In one embodiment, the isolation structure further includes a base portion, the base portion is located on a side of the isolation body close to the substrate, and the orthographic projection of the isolation body on the substrate is located within the orthographic projection of the base portion on the substrate. By providing the base portion, the effect of the isolation structure in blocking water vapor can be further improved.

[0019] A second aspect of an embodiment of the present application provides a method for manufacturing a display panel, comprising: forming an isolation structure on one side of a substrate, the isolation structure enclosing an isolation opening; sequentially arranging a light-emitting layer and a packaging layer that cover the entire layer on a side of the isolation structure away from the substrate; etching the light-emitting layer and the packaging layer to respectively form a light-emitting unit, a packaging unit and a cushion layer, the light-emitting unit being arranged corresponding to the isolation opening, the packaging unit comprising a main body portion and a first extension portion that are connected to each other, the main body portion covering a surface of the light-emitting unit that is away from the substrate, the first extension portion being located on a side of the isolation structure that is away from the substrate, and the first extension portion and the isolation structure being spaced apart from each other, the cushion layer being arranged on a side of at least part of the isolation structure that is away from the substrate, and the contour of the positive projection of the cushion layer on the isolation structure at least partially overlapping with the contour of the positive projection of the first extension portion on the isolation structure.

[0020] In the display panel manufactured by the above method, the cushion layer can form a closed coating structure together with the first extension part on the isolation structure, thereby reducing the influence of the etching process on the light-emitting unit during the manufacturing process, preventing water vapor from invading the light-emitting unit along the gap position on the isolation structure, and thus preventing damage to the light-emitting unit, avoiding the problem of dark spots in the light-emitting unit, and improving the display effect of the display panel.

[0021] In one embodiment, the etching of the light-emitting layer and the encapsulation layer to form the light-emitting unit, the encapsulation unit and the pad layer respectively includes: etching the light-emitting layer to form a light-emitting functional portion arranged corresponding to the isolation opening, and a first sub-pad layer at least partially covering a surface of a side of the isolation structure away from the substrate. In this way, the first sub-pad layer is formed by etching simultaneously with the light-emitting functional portion, so that no additional process is required in the production process of the first sub-pad layer, which simplifies the processing steps and reduces the production cost.

[0022] In one embodiment, the etching of the light-emitting layer and the encapsulation layer to respectively form the light-emitting unit, the encapsulation unit and the cushion layer further includes: etching the light-emitting layer to form a second electrode located on the surface of the light-emitting functional unit facing away from the substrate, and a second sub-cushion layer at least partially covering the surface of the first sub-cushion layer facing away from the isolation structure. In this way, the second sub-cushion layer is formed by etching simultaneously with the second electrode, which can not only increase the overall height of the cushion layer, so that it can better provide auxiliary support for the encapsulation unit and share stress, but also does not require additional steps in the production process of the second sub-cushion layer, which simplifies the processing steps and reduces the production cost.

[0023] In one embodiment, the etching of the light-emitting layer and the encapsulation layer to respectively form a light-emitting unit, an encapsulation unit and a cushion layer includes: sequentially arranging a first light-emitting layer and a first encapsulation layer that are fully covered on a side of the isolation structure away from the substrate; etching the first light-emitting layer and the first encapsulation layer to remove a portion of the first light-emitting layer located on a side of the isolation structure away from the substrate to respectively form a first light-emitting unit and a first encapsulation unit; sequentially arranging a second light-emitting layer and a second encapsulation layer that are fully covered on a side of the isolation structure away from the substrate; etching the second light-emitting layer and the second encapsulation layer to remove a portion of the second light-emitting layer located on a side of the isolation structure away from the substrate to respectively form a second light-emitting unit and a second encapsulation unit; sequentially arranging a third light-emitting layer and a third encapsulation layer that are fully covered on a side of the isolation structure away from the substrate; etching the third light-emitting layer and the third encapsulation layer to respectively form a third light-emitting unit, a third encapsulation unit and a cushion layer. In this way, the pad layer is etched synchronously with the third light-emitting unit, so that the pad layer can protect the first light-emitting unit and the second light-emitting unit, and no additional steps are required during the production of the pad layer, which simplifies the processing steps and reduces the production cost.

[0024] In one embodiment, the manufacturing method further comprises: removing a portion of the third light-emitting layer located on the isolation structure at least partially around the third light-emitting unit.

[0025] In one embodiment, the manufacturing method further includes: removing a portion of the third light-emitting layer located on the isolation structure on at least a portion of the periphery of the second light-emitting unit; or removing a portion of the third light-emitting layer located on the isolation structure on at least a portion of the periphery of the first light-emitting unit.

[0026] A third aspect of the embodiments of the present application provides a display device, comprising the display panel as described in the first aspect; or a display panel prepared by the method for manufacturing a display panel according to the second aspect.

[0027] It can be understood that the beneficial effects of the third aspect mentioned above can be found in the relevant descriptions of the first and second aspects mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 is a cross-sectional view of the overall structure of a display panel in the related art;

[0030] Figure 2 is a cross-sectional view of the overall structure of a display panel provided by an embodiment of the present application;

[0031] Figure 3 It is a schematic diagram of a partial structure enlargement of an isolation structure, a cushion layer and a packaging unit in a display panel provided by an embodiment of the present application;

[0032] Figure 4 is a flow chart of a method for manufacturing a display panel provided by an embodiment of the present application;

[0033] Figure 5 It is a schematic diagram of the overall structure of a display device provided by an embodiment of the present application.

[0034] Figure Number:

[0035] 10. Display device;

[0036] 100. Display panel;

[0037] 110. Substrate;

[0038] 120, light-emitting layer, 121, light-emitting unit, 1211, first electrode, 1212, light-emitting functional unit, 1213, second electrode, 121A, first light-emitting unit, 121B, second light-emitting unit, 121C, third light-emitting unit;

[0039] 130, isolation structure, 131, isolation opening, 132, isolation body, 133, blocking portion, 134, base portion;

[0040] 140, cushion layer, 141, first sub-cushion layer, 142, second sub-cushion layer, 143, central portion, 144, peripheral portion;

[0041] 150, encapsulation layer, 151, encapsulation unit, 1511, main body, 1512, first extension part, 1513, second extension part;

[0042] 160. pixel defining layer, 161. pixel opening. DETAILED DESCRIPTION

[0043] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0044] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0046] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0048] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. "Multiple" means two or more.

[0049] like Figure 1 As shown, the display panel 1 in the related art includes a substrate 11, a light-emitting layer 12 arranged on the substrate 11, an isolation structure 14 arranged between two adjacent light-emitting units in the light-emitting layer 12, and an encapsulation layer 13 arranged on the side of the light-emitting layer 12 away from the substrate 11, wherein the encapsulation layer 13 at least partially extends onto the isolation structure 14, and external water vapor can easily invade into the light-emitting layer 14 from the position of the encapsulation layer 13, resulting in dark spots in the light-emitting units, thereby affecting the display effect of the display panel 1.

[0050] To at least partially address the issues in the related art, see Figure 2 As shown, an embodiment of the present application provides a display panel 100 , which includes: a substrate 110 , a light-emitting layer 120 , an isolation structure 130 , a pad layer 140 and an encapsulation layer 150 .

[0051] Specifically, the light-emitting layer 120, the isolation structure 130, the pad layer 140 and the encapsulation layer 150 are respectively arranged on one side of the substrate 110, wherein the substrate 110 is used to support and carry other film layers in the display panel 100. For example, the substrate 110 can be made of materials such as glass and polyimide (PI). In some embodiments, the substrate 110 can also include an array substrate, on which a driving circuit for driving the light-emitting units 121 in the display area of ​​the display panel 100 to emit light is provided. Under the drive of the driving circuit, different light-emitting units 121 in the display area can be excited to emit light of different colors, so that the display panel 100 can achieve a colorful display effect.

[0052] The isolation structure 130 can enclose an isolation opening 131 for at least partially accommodating the light-emitting unit 121, so as to complete the arrangement and molding of the light-emitting unit 121 without the aid of a mask, that is, in the light-emitting layer 120, an isolation structure 130 is provided between a portion of two adjacent light-emitting units 121, or an isolation structure 130 is provided between every two adjacent light-emitting units 121. The specific structural form of the isolation structure 130 is not limited, as long as it can play the role of isolating two light-emitting units 121.

[0053] The composition and preparation of the isolation structure 130 are described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, CN117979755A, CN117998900A, CN The present invention is further described in CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A for reference.

[0054] The light-emitting layer 120 includes a plurality of light-emitting units 121 spaced apart from each other, and the light-emitting units 121 are arranged corresponding to the isolation openings 131. For example, the light-emitting units 121 may be red light-emitting units for emitting red light, green light-emitting units for emitting green light, blue light-emitting units for emitting blue light, or white light-emitting units for emitting white light, etc. The number of light-emitting units 121 of different types, the arrangement of the plurality of light-emitting units 121, the spacing between two adjacent light-emitting units 121, etc. may be flexibly arranged, and are not limited here. The light-emitting unit 121 can emit light under the driving action of the driving circuit, and specifically, the light-emitting material in the light-emitting unit 121 may emit light under the action of an electric field.

[0055] The encapsulation layer 150 can encapsulate and protect the display panel 100 as a whole. The encapsulation layer 150 can be a single-layer structure made of inorganic materials or organic materials, or a laminated structure made of at least one of inorganic materials or organic materials, which is not limited here. The encapsulation layer 150 includes a plurality of encapsulation units 151, each of which is arranged corresponding to each light-emitting unit 121. The encapsulation unit 151 includes a main body 1511 and a first extension 1512 connected to each other. The main body 1511 covers the surface of the light-emitting unit 121 on one side away from the substrate 110. The first extension 1512 is located on the side of the isolation structure 130 away from the substrate 110, and the first extension 1512 and the isolation structure 130 are arranged at intervals from each other. The main body 1511 and the first extension portion 1512 are different blocks divided on the packaging unit 151 according to their respective locations and functions. In actual products, there may not be a clear boundary on the packaging unit 151 to distinguish the main body 1511 and the extension portion 1512.

[0056] The cushion layer 140 is disposed on the side of at least part of the isolation structure 130 away from the substrate 110. The cushion layer 140 is disposed on the isolation structure 130 to play a cushioning role. The manufacturing material, cross-sectional shape and cross-sectional size of the cushion layer 140 are not limited. In addition, the cushion layer 140 may be disposed on only part of the isolation structure 130, or may be disposed on all the isolation structures 130. The range of the cushion layer 140 can be flexibly set according to actual use requirements.

[0057] The orthographic projection contour of the pad layer 140 on the isolation structure 130 at least partially overlaps with the orthographic projection contour of the first extension portion 1512 on the isolation structure 130. The first extension portion 1512 and the pad layer 140 are both located on the side of the isolation structure 130 that is away from the substrate 110. The pad layer 140 and the first extension portion 1512 at least partially overlap in the isolation structure 130 to form a closed encapsulation structure, thereby reducing the influence of the etching process on the light-emitting unit 121 during the manufacturing process and preventing water vapor from invading the light-emitting unit 121 along the gap position on the isolation structure 130.

[0058] Among them, the first extension portion 1512 and the cushion layer 140 can be arranged in the same layer on the side of the isolation structure 130 away from the substrate 110 to form a closed encapsulation structure. The first extension portion 1512 and the cushion layer 140 can also be arranged in a staggered manner on the side of the isolation structure 130 away from the substrate 110, and the first extension portion 1512 and the cushion layer 140 are connected by a connecting portion to form a closed encapsulation structure.

[0059] The display panel 100 of the embodiment of the present application is provided with a packaging unit 151 including a main body 1511 and a first extension portion 1512 connected to each other, and a cushion layer 140 is provided on the side of the isolation structure 130 away from the substrate 110, so that the positive projection contour of the cushion layer 140 on the isolation structure 130 at least partially overlaps with the positive projection contour of the first extension portion 1512 on the isolation structure 130. In this way, the cushion layer 140 can form a closed coating structure together with the first extension portion 1512 on the isolation structure 130, thereby reducing the influence of the etching process on the light-emitting unit 121 during the manufacturing process, avoiding water vapor from invading the light-emitting unit 121 along the gap position on the isolation structure 130, and thus not causing damage to the light-emitting unit 121, avoiding the problem of dark spots in the light-emitting unit 121, and improving the display effect of the display panel 100.

[0060] The pad layer 140 may be a single-layer structure formed of a single material, or a laminated structure formed of a plurality of the same or different materials. In some embodiments, optionally, the pad layer 140 includes a first sub-pad layer 141, and the first sub-pad layer 141 at least partially covers the side surface of the isolation structure 130 away from the substrate 110. Further, the first sub-pad layer 141 at least partially covers the side surface of the first extension portion 1512 away from the isolation structure 130, that is, the first extension portion 1512 and the first sub-pad layer 141 are arranged in a high and low staggered manner on the side of the isolation structure 130 away from the substrate 110, wherein the first extension portion 1512 is at the bottom, and the first sub-pad layer 141 is at the top, and at least partially covers the side surface of the first extension portion 1512 away from the isolation structure 130, and the first extension portion 1512 and the first sub-pad layer 141 are connected by a connecting portion to form a closed encapsulation structure.

[0061] The light-emitting material in the light-emitting unit 121 emits light under the action of an electric field. In some embodiments, the light-emitting unit 121 optionally includes a first electrode 1211, a light-emitting functional unit 1212, and a second electrode 1213, which are sequentially stacked. The first sub-pad layer 141 can be arranged in the same layer and with the same material as the light-emitting functional unit 1212. It should be noted that the "same layer" here means that the first sub-pad layer 141 and the light-emitting functional unit 1212 are formed by the same film layer. For example, further, the first sub-pad layer 141 and the light-emitting functional unit 1212 can be formed in the same preparation process.

[0062] One of the first electrode 1211 and the second electrode 1213 may be an anode, and the other of the first electrode 1211 and the second electrode 1213 may be a cathode. In this way, an electric field is generated between the first electrode 1211 and the second electrode 1213 which are opposite to each other and spaced apart, and the light-emitting functional part 1212 can emit light under the action of the electric field. The light-emitting functional part 1212 may include a multilayer structure. For example, the light-emitting functional part 1212 includes a stacked hole injection part, a hole transport part, a light-emitting part, an electron transport part, an electron injection part, etc. At this time, by making the first sub-pad layer 141 and the light-emitting functional part 1212 in the same layer and with the same material, the first sub-pad layer 141 can be formed simultaneously with the light-emitting functional part 1212 in the same processing step. No additional process is required in the production process of the first sub-pad layer 141, which simplifies the processing steps and reduces the production cost.

[0063] Furthermore, in some embodiments, the pad layer 140 also includes a second sub-pad layer 142, which at least partially covers a surface of the first sub-pad layer 141 that is away from the isolation structure 130. By making the pad layer 140 include the second sub-pad layer 142, the overall height of the pad layer 140 can be increased, so that it can better provide auxiliary support for the packaging unit 151 and share stress.

[0064] On the basis of the above embodiment, the second subpad layer 142 and the second electrode 1213 are in the same layer and are made of the same material, so that the second subpad layer 142 can be formed simultaneously with the second electrode 1213 in the same processing step, and no additional steps need to be added during the production of the second subpad layer 142, which simplifies the processing steps and reduces the production cost. It should be noted that the "same layer" here means that the second subpad layer 142 and the second electrode 1213 are formed by the same film layer, for example, further, the second subpad layer 142 and the second electrode 1213 can be formed in the same preparation process.

[0065] Please combine Figure 2 Also see Figure 3 In some embodiments, optionally, the packaging unit 151 further includes a second extension portion 1513 connected to the main body 1511, the second extension portion 1513 is disposed on a side of the first extension portion 1512 away from the isolation structure 130, and the second extension portion 1513 at least partially covers a surface of the pad layer 140 away from the isolation structure 130. In this embodiment, the first extension portion 1512 and the second extension portion 1513 of the packaging unit 151 can be formed in multiple times in different manufacturing processes.

[0066] Specifically, the pad layer 140 includes a central portion 143 and a peripheral portion 144 connected to each other, the central portion 143 covers the side surface of the isolation structure 130 away from the substrate 110, and the peripheral portion 144 is at least partially sandwiched between the first extension portion 1512 and the second extension portion 1513. It should be noted that the first sub-pad layer 141 and the second sub-pad layer 142 are different parts divided on the pad layer 140 along the stacking direction of the pad layer 140, and the central portion 143 and the peripheral portion 144 are different parts divided on the pad layer 140 along a direction substantially parallel to the surface of the substrate 110. Therefore, the central portion 143 and the peripheral portion 144 and the first sub-pad layer 141 and the second sub-pad layer 142 can include each other, that is, the central portion 143 can include a partial structure of the first sub-pad layer 141 and the second sub-pad layer 142 located at a relatively central position, and the peripheral portion 144 can include a partial structure of the first sub-pad layer 141 and the second sub-pad layer 142 located at a relatively edge position, and they are not independent of each other. At this time, the peripheral portion 144 at least partially extends to between the first extension portion 1512 and the second extension portion 1513 of the packaging unit 151 .

[0067] Due to the production process, Figure 3 As shown, along the direction perpendicular to the surface of the substrate 110, the second extension portion 1513 and the isolation structure 130 are spaced apart from each other. The second extension portions 1513 located on the periphery of the same isolation structure 130 are connected to each other to completely cover the side surface of the cushion layer 140 away from the isolation structure 130. In this way, another closed encapsulation structure can be further formed on the side surface of the cushion layer 140 away from the isolation structure 130, thereby enhancing the effect of blocking water vapor intrusion.

[0068] As described above, the light-emitting layer 120 may include a plurality of light-emitting units 121 for emitting light of different colors. In some embodiments, optionally, the light-emitting unit 121 includes a first light-emitting unit 121A, a second light-emitting unit 121B and a third light-emitting unit 121C; the pad layer 140 is disposed on an isolation structure 130 located at least partially around the first light-emitting unit 121A, or the pad layer 140 is disposed on an isolation structure 130 located at least partially around the second light-emitting unit 121B, or the pad layer 140 is disposed on an isolation structure 130 located at least partially around the third light-emitting unit 121C, or the pad layer 140 is simultaneously disposed on the isolation structure 130 located at least partially around the first light-emitting unit 121A, on the isolation structure 130 located at least partially around the second light-emitting unit 121B, and on the isolation structure 130 located at least partially around the third light-emitting unit 121C.

[0069] In this way, the cushion layer 140 can be set on the isolation structure 130 on at least part of the surrounding side of any one or several of the first light-emitting unit 121A, the second light-emitting unit 121B and the third light-emitting unit 121C, so as to facilitate the adjustment of the actual setting position of the cushion layer 140 according to different process steps, so as to focus on protecting the light-emitting unit 121 which is at higher risk of water vapor intrusion, and also facilitate the flexible adjustment of the process steps to simplify the manufacturing process.

[0070] In some embodiments, optionally, the pad layer 140 is disposed on the isolation structure 130 located at least partially around the first light-emitting unit 121A, or the pad layer 140 is disposed on the isolation structure 130 located at least partially around the second light-emitting unit 121B, or the pad layer 140 is disposed on both the isolation structure 130 located at least partially around the first light-emitting unit 121A and the isolation structure 130 located at least partially around the second light-emitting unit 121B, and the pad layer 140 is disposed in the same layer and the same material as the third light-emitting unit 121C. It should be noted that the "same layer" here means that the pad layer 140 and the third light-emitting unit 121C are formed by the same film layer, for example, further, the pad layer 140 and the third light-emitting unit 121C can be formed in the same preparation process.

[0071] When the first light-emitting unit 121A, the second light-emitting unit 121B and the third light-emitting unit 121C are sequentially manufactured, the first light-emitting unit 121A that is manufactured first has to endure more etching times. Therefore, the first light-emitting unit 121A is subject to a higher risk of water vapor intrusion, the second light-emitting unit 121B is subject to the second highest risk of water vapor intrusion, and the third light-emitting unit 121C is subject to the lowest risk of water vapor intrusion. In order to solve the above problem, the cushion layer 140 and the third light-emitting unit 121C are provided in the same layer and with the same material. Then, the cushion layer 140 can be formed synchronously with the third light-emitting unit 121C in the same processing step and is provided on the isolation structure 130 located at least partially around the first light-emitting unit 121A. Or it is arranged on the isolation structure 130 located at least partially around the second light-emitting unit 121B, or the cushion layer 140 is simultaneously arranged on the isolation structure 130 located at least partially around the first light-emitting unit 121A and the isolation structure 130 located at least partially around the second light-emitting unit 121B, so as to focus on protecting the first light-emitting unit 121A and the second light-emitting unit 121B, and prevent water vapor from invading the first light-emitting unit 121A and the second light-emitting unit 121B along the gap position on the isolation structure 130, so as to avoid damage to the first light-emitting unit 121A and the second light-emitting unit 121B, and avoid the problem of dark spots in the first light-emitting unit 121A and the second light-emitting unit 121B.

[0072] In order to further avoid signal crosstalk between adjacent light-emitting units 121, in some embodiments, optionally, the display panel 100 also includes a pixel defining layer 160, and the pixel defining layer 160 is arranged on one side of the substrate 110, and the pixel defining layer 160 defines a plurality of pixel openings 161 spaced apart from each other, and each light-emitting unit 121 is arranged corresponding to each pixel opening 161; the isolation structure 130 is arranged on the side of the pixel defining layer 160 away from the substrate 110, and the isolation structure 130 is located between at least partially adjacent two pixel openings 161.

[0073] By setting a pixel defining layer 160 and a pixel opening 161 defined by the pixel defining layer 160 , the light emitting unit 121 is set corresponding to each pixel opening 161 , and the isolation structure 130 is set on the pixel defining layer 160 , which facilitates the setting and forming of the light emitting unit 121 and the isolation structure 130 .

[0074] The specific structural form of the isolation structure 130 is not limited. In some embodiments, optionally, the isolation structure 130 includes an isolation body 132 and a blocking portion 133. The blocking portion 133 is located on the side of the isolation body 132 facing away from the substrate 110, and the orthographic projection of the isolation body 132 on the substrate 110 is located within the orthographic projection of the blocking portion 133 on the substrate 110; the main body 1511 also covers the side wall of the isolation body 132, and the first extension portion 1512 is located on the side of the blocking portion 133 facing away from the substrate 110, and the first extension portion 1512 and the blocking portion 133 are spaced apart from each other.

[0075] That is to say, the isolation structure 130 includes a relatively independent isolation body 132 and a blocking portion 133, wherein the isolation body 132 is located on the substrate 110 or the pixel defining layer 160, and the blocking portion 133 is located on the side of the isolation body 132 away from the substrate 110, and the area covered by the orthographic projection of the blocking portion 133 on the substrate 110 is relatively large, while the area covered by the orthographic projection of the isolation body 132 on the substrate 110 is relatively small, so that the orthographic projection of the blocking portion 133 on the substrate 110 can cover the orthographic projection of the isolation body 132 on the substrate 110. The cross-sectional shapes of the isolation body 132 and the blocking portion 133 can be regular shapes, such as rectangles, trapezoids, etc., or irregular shapes. Figure 2 In the embodiment shown, the cross-sectional shapes of the isolating body 132 and the blocking portion 133 are both trapezoidal. By adopting the above-designed isolating structure 130, and making the main body 1511 cover the side wall of the isolating body 132, the first extension portion 1512 is located on the side of the blocking portion 133 away from the substrate 110, and the first extension portion 1512 and the blocking portion 133 are arranged at intervals from each other, it is possible to better block water vapor, prevent water vapor from invading into the light-emitting unit 121 along the side wall of the isolating structure 130, and prevent the light-emitting unit 121 from being damaged.

[0076] like Figure 3As shown, the isolation structure 130 further includes a base portion 134, which is located on the side of the isolation body 132 close to the substrate 110, and the orthographic projection of the isolation body 132 on the substrate 110 is located within the orthographic projection of the base portion 134 on the substrate 110. Similarly, the orthographic projection of the base portion 134 on the substrate 110 covers a larger area, while the orthographic projection of the isolation body 132 on the substrate 110 covers a relatively smaller area, so that the orthographic projection of the base portion 134 on the substrate 110 can cover the orthographic projection of the isolation body 132 on the substrate 110. That is, the base portion 134, the isolation body 132 and the blocking portion 133 in the isolation structure 130 are stacked in sequence, and by providing the base portion 134, the water vapor blocking effect of the isolation structure 130 can be further improved.

[0077] Please combine Figures 2 to 3 Also see Figure 4 The embodiment of the present application further provides a method for manufacturing a display panel 100, comprising the following steps:

[0078] S102 , forming an isolation structure 130 on one side of the substrate 110 , wherein the isolation structure 130 surrounds an isolation opening 131 .

[0079] S104 , sequentially disposing a light-emitting layer 120 and an encapsulation layer 150 that completely cover the isolation structure 130 on a side facing away from the substrate 110 .

[0080] S106. Etch the light-emitting layer 120 and the encapsulation layer 150 to respectively form a light-emitting unit 121, an encapsulation unit 151 and a pad layer 140. The light-emitting unit 121 is arranged corresponding to the isolation opening 131. The encapsulation unit 151 includes a main body 1511 and a first extension portion 1512 connected to each other. The main body 1511 covers a surface of the light-emitting unit 121 facing away from the substrate 110. The first extension portion 1512 is located on a side of the isolation structure 130 facing away from the substrate 110, and the first extension portion 1512 and the isolation structure 130 are spaced apart from each other. The pad layer 140 is arranged on a side of at least part of the isolation structure 130 facing away from the substrate 110. The orthographic projection contour of the pad layer 140 on the isolation structure 130 at least partially overlaps with the orthographic projection contour of the first extension portion 1512 on the isolation structure 130.

[0081] In the above manufacturing process, the light-emitting layer 120 is etched to simultaneously form the light-emitting unit 121 and the pad layer 140. Specifically, the light-emitting unit 121 is formed at a position corresponding to the isolation opening 131 surrounded by the isolation structure 130, and the pad layer 140 is formed at a position corresponding to the isolation structure 130, and the encapsulation layer 150 is etched to form the encapsulation unit 151. In this way, no additional process is required in the manufacturing process of the pad layer 140, which simplifies the processing steps and reduces the manufacturing cost.

[0082] In the display panel 100 manufactured by the above method, the cushion layer 140 can form a closed coating structure together with the first extension portion 1512 on the isolation structure 130, thereby reducing the influence of the etching process on the light-emitting unit 121 during the manufacturing process, preventing water vapor from invading the light-emitting unit 121 along the gap position on the isolation structure 130, and thus preventing the light-emitting unit 121 from being damaged, thereby avoiding the problem of dark spots in the light-emitting unit 121, and improving the display effect of the display panel 100.

[0083] In some embodiments, step S106 includes:

[0084] S1062 , etching the light emitting layer 120 to form a light emitting functional portion 1212 disposed corresponding to the isolation opening 131 , and a first sub-pad layer 141 at least partially covering a surface of a side of the isolation structure 130 facing away from the substrate 110 .

[0085] In this embodiment, the first subpad layer 141 and the light emitting functional portion 1212 are formed by synchronous etching, so that no additional steps are required in the manufacturing process of the first subpad layer 141, which simplifies the processing steps and reduces the manufacturing cost.

[0086] In one embodiment, step S106 further includes:

[0087] S1064 , etching the light emitting layer 120 to form a second electrode 1213 located on a surface of the light emitting functional portion 1212 facing away from the substrate 110 , and a second subpad layer 142 at least partially covering a surface of the first subpad layer 141 facing away from the isolation structure 130 .

[0088] In this configuration, the second sub-pad layer 142 and the second electrode 1213 are formed by synchronous etching, which not only increases the overall height of the pad layer 140, enabling it to better provide auxiliary support for the packaging unit 151 and share stress, but also eliminates the need to add additional steps during the production of the second sub-pad layer 142, thereby simplifying the processing steps and reducing production costs.

[0089] As described above, the light emitting layer 120 includes a plurality of light emitting units 121 spaced apart from each other. Therefore, in some embodiments, the method for manufacturing the display panel specifically includes:

[0090] S1042 , sequentially disposing a first light-emitting layer and a first encapsulation layer that fully cover the first light-emitting layer on a side of the isolation structure 130 that is away from the substrate 110 .

[0091] S1066, etching the first light-emitting layer and the first encapsulation layer to remove a portion of the first light-emitting layer located on a side of the isolation structure 130 away from the substrate, so as to respectively form a first light-emitting unit 121A and an encapsulation unit 151 corresponding to the first light-emitting unit 121A.

[0092] S1044 , sequentially arrange a second light-emitting layer and a second encapsulation layer that are fully covered on a side of the isolation structure 130 that is away from the substrate.

[0093] S1068, etching the second light-emitting layer and the second encapsulation layer to remove a portion of the second light-emitting layer located on a side of the isolation structure 130 away from the substrate 110, so as to respectively form a second light-emitting unit 121B and an encapsulation unit 151 corresponding to the second light-emitting unit 121B.

[0094] S1046 , sequentially disposing a third light-emitting layer and a third encapsulation layer that fully cover the isolation structure 130 on a side facing away from the substrate 110 .

[0095] S10610, etching the third light-emitting layer and the third encapsulation layer to respectively form a third light-emitting unit 121C, an encapsulation unit 151 corresponding to the third light-emitting unit 121C, and a pad layer 140.

[0096] That is, the substrate 110 may have a plurality of different light-emitting units 121, and different light-emitting units 121 may have different light-emitting colors, and the pad layer 140 may be formed by etching synchronously with any of the light-emitting units 121. Exemplarily, the pad layer 140 may be formed by etching synchronously with the third light-emitting unit 121C, so that the pad layer 140 can protect the first light-emitting unit 121A and the second light-emitting unit 121B, and no additional process is required in the manufacturing process of the pad layer 140, which simplifies the processing steps and reduces the manufacturing cost.

[0097] In the display panel 100, since the substrate 110 may have a plurality of different light-emitting units 121, the pad layer 140 may be disposed on the isolation structure 130 located on at least one side of different light-emitting units 121. Exemplarily, the manufacturing method of the display panel 100 may further include the following steps:

[0098] S108 , removing a portion of the third light-emitting layer located on the isolation structure 130 at least partially around the third light-emitting unit 121C.

[0099] After a third light-emitting layer that covers the entire layer is sequentially arranged on the side of the isolation structure 130 facing away from the substrate 110 and is etched, a third light-emitting layer is formed on the isolation structure 130 located at least partially around each light-emitting unit 121. Subsequently, the portion of the third light-emitting layer located on the isolation structure 130 on at least partially around the third light-emitting unit 121C can be removed, that is, the portion of the third light-emitting layer located on the isolation structure 130 on at least partially around the second light-emitting unit 121B is retained, and the portion of the pad layer 140 located on the isolation structure 130 on at least partially around the first light-emitting unit 121A is retained as the pad layer 140.

[0100] In some other embodiments, the method for manufacturing the display panel 100 may further include the following steps:

[0101] S110, removing the portion of the third light emitting layer on the isolation structure 130 at least partially around the second light emitting unit 121B. At this time, only the portion of the pad layer 140 on the isolation structure 130 at least partially around the first light emitting unit 121A is retained as the pad layer 140.

[0102] Or S112, remove the portion of the third light emitting layer on the isolation structure 130 at least partially around the first light emitting unit 121A. At this time, only the portion of the pad layer 140 on the isolation structure 130 at least partially around the second light emitting unit 121B is retained as the pad layer 140.

[0103] To summarize, in the manufacturing process of the display panel 100, after the first light-emitting unit 121A is formed on the substrate 110, the partial structure on the isolation structure 130 formed synchronously with the first light-emitting unit 121A is removed, and then the second light-emitting unit 121B is formed on the substrate 110, and the partial structure on the isolation structure 130 formed synchronously with the second light-emitting unit 121B is removed, and then the third light-emitting unit 121C is formed on the substrate 110, and the portion located on the isolation structure 130 is formed synchronously with the third light-emitting unit 121C. Finally, according to actual manufacturing requirements, the portion of the third light-emitting layer located on the isolation structure 130 on at least a portion of the periphery of the third light-emitting unit 121C is removed, and the portion of the third light-emitting layer located on at least a portion of the periphery of the second light-emitting unit 121B is removed. At this time, the portion of the third light-emitting layer located on the isolation structure 130 on at least a portion of the periphery of the first light-emitting unit 121A is retained as a cushion layer 140, and an encapsulation layer 150 is formed on the substrate 110. The cushion layer 140 can form a closed encapsulation structure together with the first extension portion 1512 on the isolation structure 130. In this way, the cushion layer 140 can form a closed encapsulation structure together with the first extension portion 1512 on the isolation structure 130, thereby reducing the influence of the etching process on the first light-emitting unit 121A during the manufacturing process, and preventing water vapor from invading the first light-emitting unit 121A along the side wall of the isolation structure 130, thereby preventing damage to the first light-emitting unit 121A and avoiding the problem of dark spots in the first light-emitting unit 121A.

[0104] According to actual manufacturing requirements, the portion of the third light-emitting layer located on the isolation structure 130 at least partially around the third light-emitting unit 121C can be removed, and the portion of the third light-emitting layer located on the isolation structure 130 at least partially around the first light-emitting unit 121A can be removed. In this case, the portion of the third light-emitting layer located on the isolation structure 130 at least partially around the second light-emitting unit 121B is retained, and the encapsulation layer 150 is formed on the substrate 110. The cushion layer 140 can form a closed encapsulation structure on the isolation structure 130 together with the first extension portion 1512. In this way, the cushion layer 140 can form a closed encapsulation structure on the isolation structure 130 together with the first extension portion 1512, thereby reducing the influence of the etching process on the second light-emitting unit 121B during the manufacturing process, preventing water vapor from invading the second light-emitting unit 121B along the side wall of the isolation structure 130, thereby preventing damage to the second light-emitting unit 121B, and avoiding the problem of dark spots in the second light-emitting unit 121B.

[0105] Please combine Figures 2 to 3 Also see Figure 5 The embodiment of the present application further provides a display device 10, which includes a display panel 100 as in any one of the above embodiments.

[0106] The display panel 100 disclosed in the embodiment of the present application is applied to a display device 10 to provide a picture display function. The display device 10 can be any product or component with a display function, including but not limited to mobile phones, tablet computers, laptop computers, e-readers, wearable devices, remote controls, televisions, desktop computers, vehicle-mounted devices, etc. Since the display panel 100 in any of the above-mentioned embodiments is adopted, a packaging unit 151 including a main body 1511 and a first extension portion 1512 connected to each other is provided, and a cushion layer 140 is provided on the side of the isolation structure 130 away from the substrate 110, so that the positive projection contour of the cushion layer 140 on the isolation structure 130 at least partially overlaps with the positive projection contour of the first extension portion 1512 on the isolation structure 130. In this way, the cushion layer 140 can form a closed coating structure together with the first extension portion 1512 on the isolation structure 130, thereby reducing the influence of the etching process on the light-emitting unit 121 during the manufacturing process, avoiding water vapor from invading the light-emitting unit 121 along the gap position on the isolation structure 130, and thus not causing damage to the light-emitting unit 121, avoiding the problem of dark spots in the light-emitting unit 121, and improving the display effect of the display panel 100.

[0107] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0108] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: include: substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure surrounds an isolation opening; A light-emitting layer is disposed on one side of the substrate, the light-emitting layer comprises a plurality of light-emitting units spaced apart from each other, and the light-emitting units are disposed corresponding to the isolation openings; an encapsulation layer, arranged on a side of the light-emitting layer away from the substrate, the encapsulation layer comprising a plurality of encapsulation units, each of the encapsulation units being arranged corresponding to each of the light-emitting units, the encapsulation units comprising a main body portion and a first extension portion connected to each other, the main body portion covering a surface of a side of the light-emitting unit away from the substrate, the first extension portion being located on a side of the isolation structure away from the substrate, and the first extension portion and the isolation structure being arranged spaced apart from each other; as well as The cushion layer is disposed on a side of at least a portion of the isolation structure away from the substrate, and an orthographic projection contour of the cushion layer on the isolation structure at least partially overlaps with an orthographic projection contour of the first extension portion on the isolation structure.

2. The display panel according to claim 1, wherein: The pad layer includes a first sub-pad layer, and the first sub-pad layer at least partially covers a surface of the isolation structure facing away from the substrate; Preferably, the first subpad layer at least partially covers a surface of a side of the first extension portion facing away from the isolation structure.

3. The display panel according to claim 2, wherein: The light-emitting unit includes a first electrode, a light-emitting functional part and a second electrode which are stacked in sequence, and the first sub-pad layer is in the same layer and made of the same material as the light-emitting functional part.

4. The display panel according to claim 3, wherein: The pad layer further includes a second subpad layer, and the second subpad layer at least partially covers a surface of the first subpad layer on a side facing away from the isolation structure.

5. The display panel according to claim 4, wherein: The second subpad layer and the second electrode are in the same layer and made of the same material.

6. The display panel according to claim 1, wherein: The packaging unit further includes a second extension portion connected to the main body, the second extension portion is disposed on a side of the first extension portion away from the isolation structure, and the second extension portion at least partially covers a surface of the cushion layer away from the isolation structure.

7. The display panel according to claim 6, wherein: The pad layer includes a central portion and a peripheral portion connected to each other, the central portion covers a surface of the isolation structure facing away from the substrate, and the peripheral portion is at least partially sandwiched between the first extension portion and the second extension portion.

8. The display panel according to claim 6, wherein: The second extension portions located on the same peripheral side of the isolation structure are connected to each other to completely cover a surface of the cushion layer facing away from the isolation structure.

9. The display panel according to claim 1, wherein: The light emitting unit includes a first light emitting unit, a second light emitting unit and a third light emitting unit; The cushion layer is disposed on the isolation structure located at least partially around the first light-emitting unit; and / or The cushion layer is disposed on the isolation structure located at least partially around the second light-emitting unit; and / or The pad layer is disposed on the isolation structure located at least partially around the third light emitting unit.

10. The display panel according to claim 9, wherein: The cushion layer is in the same layer and made of the same material as the third light emitting unit.

11. The display panel according to any one of claims 1 to 10, characterized in that: The display panel further comprises a pixel defining layer, the pixel defining layer being arranged on one side of the substrate, the pixel defining layer defining a plurality of pixel openings arranged at intervals from each other, and each of the light emitting units being arranged corresponding to each of the pixel openings; The isolation structure is arranged on a side of the pixel defining layer away from the substrate, and the isolation structure is located between at least partially adjacent two pixel openings.

12. The display panel according to any one of claims 1 to 10, characterized in that: The isolation structure comprises an isolation body and a blocking portion, wherein the blocking portion is located on a side of the isolation body away from the substrate, and an orthographic projection of the isolation body on the substrate is located within an orthographic projection of the blocking portion on the substrate; The main body also covers the side wall of the isolating body. The first extending portion is located on a side of the blocking portion away from the substrate, and the first extending portion and the blocking portion are spaced apart from each other.

13. The display panel according to claim 12, wherein: The isolation structure further includes a base portion, which is located on a side of the isolation body close to the substrate, and an orthographic projection of the isolation body on the substrate is located within an orthographic projection of the base portion on the substrate.

14. A method for manufacturing a display panel, characterized in that: include: An isolation structure is formed on one side of the substrate, wherein the isolation structure surrounds an isolation opening; A light-emitting layer and an encapsulation layer are sequentially arranged on a side of the isolation structure away from the substrate so as to cover the entire structure; The light-emitting layer and the encapsulation layer are etched to respectively form a light-emitting unit, a encapsulation unit and a cushion layer, wherein the light-emitting unit is arranged corresponding to the isolation opening, and the encapsulation unit includes a main body and a first extension portion connected to each other, wherein the main body covers a surface of the light-emitting unit facing away from the substrate, and the first extension portion is located on a side of the isolation structure facing away from the substrate, and the first extension portion and the isolation structure are spaced apart from each other, and the cushion layer is arranged on a side of at least part of the isolation structure facing away from the substrate, and the orthographic projection contour of the cushion layer on the isolation structure at least partially overlaps with the orthographic projection contour of the first extension portion on the isolation structure.

15. The manufacturing method according to claim 14, characterized in that: The etching of the light-emitting layer and the encapsulation layer to respectively form a light-emitting unit, an encapsulation unit and a cushion layer comprises: The light-emitting layer is etched to form a light-emitting functional portion arranged corresponding to the isolation opening, and a first sub-pad layer at least partially covering a surface of a side of the isolation structure away from the substrate.

16. The method of claim 15, wherein: The etching of the light-emitting layer and the encapsulation layer to form a light-emitting unit, an encapsulation unit and a cushion layer respectively further comprises: The light emitting layer is etched to form a second electrode located on a surface of the light emitting functional portion facing away from the substrate, and a second subpad layer at least partially covering a surface of the first subpad layer facing away from the isolation structure.

17. The manufacturing method according to claim 14, characterized in that: The production method shown specifically includes: A first light-emitting layer and a first encapsulation layer are sequentially arranged on a side of the isolation structure away from the substrate so as to cover the entire structure; Etching the first light-emitting layer and the first encapsulation layer to remove a portion of the first light-emitting layer located on a side of the isolation structure away from the substrate, so as to form a first light-emitting unit and a first encapsulation unit respectively; A second light-emitting layer and a second encapsulation layer are sequentially arranged on a side of the isolation structure away from the substrate and covering the entire structure; Etching the second light-emitting layer and the second encapsulation layer to remove a portion of the second light-emitting layer located on a side of the isolation structure away from the substrate, so as to form a second light-emitting unit and a second encapsulation unit respectively; A third light-emitting layer and a third encapsulation layer are sequentially arranged on a side of the isolation structure away from the substrate so as to cover the entire structure; The third light emitting layer and the third encapsulation layer are etched to form a third light emitting unit, a third encapsulation unit and a pad layer respectively.

18. The method of claim 17, wherein: The production method further comprises: A portion of the third light-emitting layer located on at least a portion of the periphery of the third light-emitting unit and on the isolation structure is removed.

19. The method of claim 18, wherein: The production method further comprises: removing a portion of the third light-emitting layer located on the isolation structure at least partially around the second light-emitting unit; or A portion of the third light-emitting layer located on at least a portion of the periphery of the first light-emitting unit and on the isolation structure is removed.

20. A display device, characterized in that: include: The display panel according to any one of claims 1 to 13; or A display panel manufactured by the method for manufacturing a display panel according to any one of claims 14 to 19.

Images