Display panel, display panel preparation method and display device

Abstract

The invention discloses a display panel, a display panel preparation method and a display device, and the display panel comprises a substrate which comprises a display area and a non-display area adjacent to the display area; the blocking structure is arranged on one side of the substrate and located in the non-display area, and at least part of the blocking structure surrounds the display area; the inorganic layer comprises a first part and a second part which are connected, the first part is located on the side, away from the substrate, of the barrier structure, the second part is located on the side, away from the substrate, of the barrier structure, and the first part comprises a hydrophobic surface on the side, away from the substrate, of the barrier structure; the organic layer is arranged on the side, away from the substrate, of the second part, and the organic layer is located in an area defined by the barrier structure. The hydrophobic surface is arranged on the side, away from the substrate, of the blocking structure, the organic layer is effectively prevented from crossing the blocking structure, the overflow problem is avoided, and the reliability of the display panel is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic products, and in particular relates to a display panel, a method for preparing a display panel, and a display device. Background Art

[0002] With the advancement of technology, digital display panels such as smart phones and tablet computers have been widely used, among which the display screen is an indispensable interpersonal communication interface in these display panels. OLED (Organic Light Emitting Diode) display panels have the advantages of self-luminescence, energy saving and consumption reduction, bendability, good flexibility, etc., and the display panel that realizes display does not require a backlight source, has the characteristics of fast response speed and good display effect, and has attracted the attention of users and is widely used in terminal products such as smart phones and tablet computers.

[0003] However, due to the structural limitations of existing display panels, the reliability of the display panels cannot meet the requirements.

[0004] Therefore, there is an urgent need for a new display panel, a method for manufacturing a display panel, and a display device. Summary of the invention

[0005] The embodiments of the present invention provide a display panel, a method for manufacturing a display panel, and a display device. By providing a hydrophobic surface on the side of the barrier structure away from the substrate, the organic layer is effectively blocked from passing over the barrier structure, thereby avoiding overflow problems and improving the reliability of the display panel. In addition, in the embodiments of the present invention, only one barrier structure can be provided to effectively block the organic layer, which is conducive to achieving a narrow frame of the display panel and improving the user experience.

[0006] In a first aspect, an embodiment of the present invention provides a display panel, comprising: a substrate, the substrate comprising a display area and a non-display area adjacent to the display area; a barrier structure, provided on one side of the substrate and located in the non-display area, the barrier structure at least partially surrounding the display area; an inorganic layer, the inorganic layer comprising a first part and a second part connected to each other, the first part being located on a side of the barrier structure away from the substrate, the second part being located on a side of the substrate, the first part comprising a hydrophobic surface away from the substrate; and an organic layer, provided on a side of the second part away from the substrate, and the organic layer being located in the area enclosed by the barrier structure.

[0007] In a second aspect, an embodiment of the present invention provides a method for preparing a display panel, comprising the following steps: providing a substrate, the substrate comprising a display area and a non-display area adjacent to the display area; forming a barrier structure on one side of the substrate, the barrier structure being formed in the non-display area, and the barrier structure at least partially surrounding the display area; forming an inorganic layer, the inorganic layer comprising a first portion formed on a side of the barrier structure away from the substrate and a second portion formed on one side of the substrate, the first portion and the second portion being connected, and a surface of the first portion on a side away from the substrate is hydrophobically treated to form a hydrophobic surface; forming an organic layer on a side of the second portion away from the substrate, the organic layer being located in the area enclosed by the barrier structure.

[0008] In a third aspect, an embodiment of the present invention provides a display panel, including the display panel in any of the above embodiments.

[0009] Compared with the related art, the display panel provided by the embodiment of the present invention includes a substrate, a barrier structure, an inorganic layer and an organic layer. Since the organic layer itself has a certain fluidity, a barrier structure is provided in the non-display area to block the flow of the organic layer, and the first part of the inorganic layer located on the side of the barrier structure away from the substrate includes a hydrophobic surface on the side away from the substrate. The hydrophobic surface refers to a surface with a non-adhesive property, that is, the organic layer material will not spread on its surface, but will gather into a sphere. By providing a hydrophobic surface on the side of the barrier structure away from the substrate, the organic layer is effectively blocked from crossing the barrier structure, avoiding the problem of overflow, and improving the reliability of the display panel. In addition, in the embodiment of the present invention, only one circle of barrier structure can be provided to achieve effective blocking of the organic layer, which is conducive to achieving a narrow frame of the display panel and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0011] Figure 1 is a schematic structural diagram of a display panel provided according to an embodiment of the present invention;

[0012] Figure 2 An embodiment of the present invention provides Figure 1 Schematic diagram of the cross section at AA in the middle;

[0013] Figure 3 Another embodiment of the present invention provides Figure 1 Schematic diagram of the cross section at AA in the middle;

[0014] Figure 4 is a flow chart of a method for preparing a display panel provided by an embodiment of the present invention;

[0015] Figure 5 is a cross-sectional schematic diagram of a structure obtained in step S110 in a method for preparing a display panel provided by an embodiment of the present invention;

[0016] Figure 6 is a cross-sectional schematic diagram of a structure obtained in step S120 in a method for preparing a display panel provided by an embodiment of the present invention;

[0017] Figure 7 is a cross-sectional schematic diagram of a structure obtained in step S130 in a method for preparing a display panel provided by an embodiment of the present invention;

[0018] Figure 8 is a schematic cross-sectional view of a structure obtained during the preparation process of a display panel provided by an embodiment of the present invention;

[0019] Fig. 9 It is a cross-sectional schematic diagram of the structure obtained during the preparation process of a display panel provided by another embodiment of the present invention. DETAILED DESCRIPTION

[0020] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0022] In the prior art, the encapsulation layer usually includes an organic layer and an inorganic layer. The organic layer has a certain fluidity, and a barrier structure needs to be set in the non-display area to prevent the overflow of the organic layer. However, there is still an overflow risk when a single-circle barrier structure is set, and setting two or more circles of barrier structures will increase the border width of the display panel, affecting the design of narrow-border products.

[0023] In order to solve the above problems, the display panel provided by the embodiment of the present invention provides a hydrophobic surface on the side of the barrier structure away from the substrate, effectively preventing the organic layer from passing over the barrier structure, avoiding the overflow problem, and improving the reliability of the display panel. In addition, in the embodiment of the present invention, only one circle of barrier structure can be provided to effectively block the organic layer, which is conducive to realizing a narrow frame of the display panel and improving the user experience.

[0024] In order to better understand the present invention, Figures 1 to 9 A display panel, a method for manufacturing a display panel, and a display device according to embodiments of the present invention are described in detail.

[0025] Please also read Figure 1 to Figure 2 , Figure 1 is a cross-sectional schematic diagram of a display panel provided by an embodiment of the present invention; Figure 2 is a cross-sectional schematic diagram of a display panel provided by another embodiment of the present invention.

[0026] An embodiment of the present invention provides a display panel, comprising: a substrate 1, the substrate 1 comprising a display area AA and a non-display area NA adjacent to the display area AA; a barrier structure 2, arranged on one side of the substrate 1 and located in the non-display area NA, the barrier structure 2 at least partially surrounding the display area AA; an inorganic layer 3, the inorganic layer 3 comprising a first portion Z1 and a second portion Z2 connected to each other, the first portion Z1 being located on a side of the barrier structure 2 facing away from the substrate 1, the second portion Z2 being located on a side of the substrate 1, the first portion Z1 comprising a hydrophobic surface S facing away from the substrate 1; an organic layer 4, arranged on a side of the second portion Z2 facing away from the substrate 1, and the organic layer 4 being located in the area enclosed by the barrier structure 2.

[0027] The display panel provided by the embodiment of the present invention includes a substrate 1, a barrier structure 2, an inorganic layer 3 and an organic layer 4. Since the organic layer 4 itself has a certain fluidity, a barrier structure 2 is provided in the non-display area NA to prevent the organic layer 4 from flowing, and the first part Z1 of the inorganic layer 3 located on the side of the barrier structure 2 away from the substrate 1 includes a hydrophobic surface S on the side away from the substrate 1. The hydrophobic surface S refers to a surface with a non-adhesive property, that is, the organic layer 4 material will not spread on its surface, but will gather into a sphere. By providing the hydrophobic surface S on the side of the barrier structure 2 away from the substrate 1, the organic layer 4 is effectively prevented from crossing the barrier structure 2, avoiding the problem of overflow, and improving the reliability of the display panel. In addition, in the embodiment of the present invention, only one circle of barrier structure 2 can be provided to achieve effective blocking of the organic layer 4, which is conducive to achieving a narrow frame of the display panel and improving the user experience.

[0028] It should be noted that there are two main formation principles of hydrophobic surface S: microstructure and chemical functionality. Microstructure forms a certain microstructure on the surface through surface morphology design and nano-scale roughening, thereby changing the surface energy. Chemical functionality changes the surface chemical properties through surface chemical modification, thereby achieving a hydrophobic effect.

[0029] In terms of microstructure, the formation of the hydrophobic surface S mainly depends on the surface roughness and surface morphology. The surface roughness can be obtained by chemical etching, electrolytic processing and other methods. The surface morphology can be obtained by micro-electroprocessing, deposition, coating and other methods. In addition, the hydrophobic surface S usually has a multi-level structure, and excellent performance can be obtained by the composite design of nanostructure and microstructure.

[0030] In terms of chemical functionality, surface chemical modification is one of the common methods to achieve a hydrophobic surface S. Commonly used surface modifiers include fluorides, silanes, and siloxanes. These chemicals can form an extremely thin protective film on the surface, thereby preventing water molecules from diffusing on the surface. For example, a hydrophilic surface can be turned into a hydrophobic surface S by modifying the surface with fluorides.

[0031] Optionally, in this embodiment, any one of hydrogen fluoride, sulfur hexafluoride, and carbon tetrafluoride can be used as a plasma source to perform plasma treatment on the surface of the first portion Z1 facing away from the substrate 1 to form a hydrophobic surface S. The hydrophobic surface S has lower surface energy and greater roughness than the surface of the second portion Z2 to block the flow of the organic layer 4 material.

[0032] The substrate 1 may be a hard substrate 1, such as a glass substrate 1; or a flexible substrate 1, and its material may be polyimide, polystyrene, polyethylene terephthalate, polyparaxylene, polyethersulfone or polyethylene naphthalate. The substrate 1 is mainly used to support the device disposed thereon.

[0033] The barrier structure 2 can be made of materials such as PSPI (Photosensitive Polyimide).

[0034] The inorganic layer 3 may be made of silicon nitride, silicon oxide, silicon oxynitride and the like, and may be formed by a CVD (Chemical Vapor Deposition) process.

[0035] The material of the organic layer 4 can be made of resin or high molecular organic material, and can be specifically formed by an IJP (Inkjet printing) process.

[0036] See also Figures 2 to 3 In some optional embodiments, the barrier structure 2 includes a first surface F1, a second surface F2 and a side surface C connecting the first surface F1 and the second surface F2, which are arranged opposite to each other in a direction perpendicular to the plane where the substrate 1 is located, and the first surface F1 is arranged away from the substrate 1 relative to the second surface F2; the first part Z1 includes a first sub-portion Z11 located on the first surface F1 and a second sub-portion Z12 located on the side surface C, and at least the first sub-portion Z11 includes a hydrophobic surface S.

[0037] In this embodiment, the first surface F1 corresponds to the top of the barrier structure 2. Considering that it is sufficient to prevent the organic layer 4 from crossing from the top of the barrier structure 2 to the other side, only the first sub-portion Z11 located on the first surface F1 may include the hydrophobic surface S, and the flow of the organic layer 4 may be restricted by the first sub-portion Z11. Alternatively, the part of the second sub-portion Z12 located on the side C facing the organic layer 4 may include the hydrophobic surface S to restrict the organic layer 4 from climbing up to the top of the barrier structure 2, thereby improving the blocking effect.

[0038] Optionally, in a direction perpendicular to the plane where the substrate 1 is located, the cross-sectional shape of the barrier structure 2 may be a rectangle, a trapezoid or the like.

[0039] Optionally, the inorganic layer 3 may adopt a single-layer structure to facilitate preparation, or the inorganic layer 3 may also include multiple film layers to prevent the inorganic layer 3 from being damaged during the hydrophobic treatment.

[0040] See also Figure 2 The inorganic layer 3 includes a first inorganic encapsulation layer 31 , and a surface of the first inorganic encapsulation layer 31 facing away from the substrate 1 includes a hydrophobic surface S.

[0041] In this embodiment, the inorganic layer 3 can only have one first inorganic encapsulation layer 31, and the surface of the first inorganic encapsulation layer 31 facing away from the substrate 1 is hydrophobically treated to increase the surface roughness and reduce the surface energy, so that the partial surface of the corresponding barrier structure 2 is hydrophobic to the organic layer 4.

[0042] In the case of only one first inorganic encapsulation layer 31, the hydrophobic treatment will have a certain etching effect on the first inorganic encapsulation layer 31. In order to ensure that the encapsulation effect of the first inorganic encapsulation layer 31 is not affected, please refer to Figure 3 , Figure 3 Another embodiment of the present invention provides Figure 1 Schematic cross-sectional view at AA in the figure; in some optional embodiments, along the direction away from the substrate 1, the inorganic layer 3 includes a first inorganic encapsulation layer 31 and a sacrificial layer 32 stacked in layers, and the surface of the sacrificial layer 32 facing away from the substrate 1 includes a hydrophobic surface S.

[0043] In this embodiment, only the sacrificial layer 32 located above the first inorganic encapsulation layer 31 is hydrophobically treated to form a hydrophobic surface S. Even if the sacrificial layer 32 is etched during the hydrophobic treatment, it will not affect the encapsulation effect of the first inorganic encapsulation layer 31 located below the sacrificial layer 32, that is, the sacrificial layer 32 plays a role in protecting the first inorganic encapsulation layer 31.

[0044] Optionally, the sacrificial layer 32 may also be made of inorganic materials to reduce production costs.

[0045] Optionally, the material of the first inorganic encapsulation layer 31 includes at least one of silicon nitride, silicon oxide, and silicon oxynitride to ensure a water and oxygen barrier effect.

[0046] Optionally, the material of the sacrificial layer 32 includes at least one of silicon nitride, silicon oxide, and silicon oxynitride. The sacrificial layer 32 and the first inorganic encapsulation layer 31 can be made of the same material to reduce production costs.

[0047] In some optional embodiments, the roughness of the hydrophobic surface S is greater than the roughness of the surface of the second portion Z2 facing away from the substrate 1. It can be understood that the greater the roughness, the worse the fluidity of the organic layer 4 on it, and the more difficult it is to flow, thereby achieving the blocking of the organic layer 4 and avoiding the overflow problem. Specifically, the surface of the first portion Z1 can be hydrophobic.

[0048] For example, the hydrophobic surface S includes fluorine element, and any one of hydrogen fluoride, sulfur hexafluoride, and carbon tetrafluoride can be used as a plasma source to perform plasma treatment on the side of the first part Z1 facing away from the substrate 1 to introduce fluorine element into the surface of the first part Z1, increase the surface roughness, reduce the surface energy, and make the organic layer 4 hydrophobic.

[0049] In some optional embodiments, the display panel includes a barrier structure 2 disposed in a ring shape around the display area AA to reduce the frame width of the display panel, and there is no need to provide multiple barriers 2 to ensure the barrier effect on the organic layer 4. The ring shape can be a rectangular ring, a circular ring or other irregular ring shape, which needs to be selected according to the specific shape of the display panel, and the barrier structure 2 is not limited to a closed ring structure, but can also be an open ring structure, without special limitation.

[0050] See also Figure 4 , Figure 4 : is a flow chart of a method for preparing a display panel provided by an embodiment of the present invention; an embodiment of the present invention also provides a method for preparing a display panel, comprising the following steps:

[0051] S110: providing a substrate 1, the substrate 1 comprising a display area AA and a non-display area NA adjacent to the display area AA, such as Figure 5 As shown;

[0052] S120: forming a barrier structure 2 on one side of the substrate 1, wherein the barrier structure 2 is formed in the non-display area NA, and the barrier structure 2 is at least partially disposed around the display area AA. Figure 6 As shown;

[0053] S130: forming an inorganic layer 3, the inorganic layer 3 comprising a first portion Z1 formed on the side of the barrier structure 2 facing away from the substrate 1 and a second portion Z2 formed on the side of the substrate 1, the first portion Z1 and the second portion Z2 being connected, and a surface of the first portion Z1 facing away from the substrate 1 is subjected to a hydrophobic treatment to form a hydrophobic surface S, such as Figure 7 As shown;

[0054] S140: forming an organic layer 4 on the side of the second portion Z2 away from the substrate 1, wherein the organic layer 4 is located in the area surrounded by the barrier structure 2, such as Figure 2 shown.

[0055] The display panel manufacturing method provided in the embodiment of the present invention performs a hydrophobic treatment on the surface of the first portion Z1 facing away from the substrate 1 to form a hydrophobic surface S, so as to utilize the hydrophobicity of the hydrophobic surface S to the organic layer 4, effectively preventing the organic layer 4 from passing over the barrier structure 2, and avoiding the problem of overflow. In addition, in the embodiment of the present invention, only one circle of barrier structure 2 can be provided to effectively block the organic layer 4, which is conducive to realizing a narrow frame of the display panel and improving the user experience.

[0056] In step S110, the substrate 1 can be formed by coating, curing, film forming and other processes. The substrate 1 can be a hard substrate 1, such as a glass substrate 1; or a flexible substrate 1, and its material can be polyimide, polystyrene, polyethylene terephthalate, polyparaxylene, polyethersulfone or polyethylene naphthalate. The substrate 1 is mainly used to support the device disposed thereon.

[0057] In step S120 , the barrier structure 2 is prepared by using materials such as PSPI (Photosensitive Polyimide) through coating, inkjet printing and other processes.

[0058] In step S130 , the inorganic layer 3 may be made of materials such as silicon nitride, silicon oxide, and silicon oxynitride, and may be formed by a CVD (Chemical Vapor Deposition) process.

[0059] See also Figure 8 or Fig. 9 , Figure 8 is a schematic cross-sectional view of a structure obtained during the preparation process of a display panel provided by an embodiment of the present invention; Fig. 9 It is a cross-sectional schematic diagram of the structure obtained during the preparation process of a display panel provided by another embodiment of the present invention.

[0060] Optionally, the step of performing a hydrophobic treatment on a surface of the first portion Z1 facing away from the substrate 1 to form a hydrophobic surface S includes:

[0061] Providing a mask plate 5, the mask plate 5 includes a mask opening K corresponding to the first portion Z1;

[0062] Any one of hydrogen fluoride, sulfur hexafluoride and carbon tetrafluoride is used as a plasma source, and a plasma treatment is performed on a surface of the first portion Z1 facing away from the substrate 1 through the mask opening K to form a hydrophobic surface S.

[0063] in, Figure 8 is a schematic diagram of plasma treatment when the inorganic layer 3 includes only one first inorganic encapsulation layer 31, Fig. 9 It is a schematic diagram of plasma treatment when the inorganic layer 3 includes two layers, a first inorganic encapsulation layer 31 and a sacrificial layer 32 .

[0064] It is understandable that hydrogen fluoride, sulfur hexafluoride, and carbon tetrafluoride are all fluorides, and these chemicals can form a very thin protective film on the surface, thereby preventing water molecules from diffusing on the surface. Of course, other materials can also be used as plasma sources, such as silanes, siloxanes, etc. Alternatively, it is also possible not to use plasma technology for hydrophobic treatment, but to use other methods, such as chemical etching, electrolytic processing, etc. As long as the hydrophobic surface S can be formed on the surface of the side of the first part Z1 away from the substrate 1, there is no special limitation.

[0065] In step S140, the material of the organic layer 4 can be made of resin or polymer organic material, and can be specifically formed by IJP (Inkjet printing) process. The organic layer 4 is located in the area surrounded by the barrier structure 2, which means that the organic layer 4 does not cross the barrier structure 2 and flows to the side of the barrier structure 2 away from the display area AA.

[0066] An embodiment of the present invention further provides a display device, comprising the display panel in any of the above embodiments.

[0067] The display device provided by the embodiment of the present invention has the technical effect of the technical solution of the display panel in any of the above embodiments, and the explanation of the structures and terms that are the same as or corresponding to the above embodiments will not be repeated here.

[0068] The display device provided in the embodiment of the present invention may be an organic light-emitting diode (OLED) display device, a quantum dot light-emitting diode (QLED) or a micro flat panel display device (Micro-OLED or Micro-LED).

[0069] The display device provided in the embodiment of the present invention can be applied to a mobile phone, or any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiment of the present invention does not make any special limitations on this.

[0070] The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the system, module and unit described above can refer to the location process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

[0071] It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in a different order from the embodiments, or several steps can be performed simultaneously.

Claims

1. A display panel, characterized in that: include: A substrate, the substrate comprising a display area and a non-display area adjacent to the display area; A barrier structure, disposed on one side of the substrate and located in the non-display area, wherein the barrier structure is at least partially disposed around the display area; an inorganic layer, the inorganic layer comprising a first portion and a second portion connected to each other, the first portion being located on a side of the barrier structure facing away from the substrate, the second portion being located on a side of the substrate, and the first portion comprising a hydrophobic surface on a side facing away from the substrate; The organic layer is disposed on a side of the second portion away from the substrate, and the organic layer is located in a region surrounded by the barrier structure.

2. The display panel according to claim 1, characterized in that: The barrier structure comprises a first surface, a second surface and a side surface connecting the first surface and the second surface which are arranged opposite to each other in a direction perpendicular to the plane where the substrate is located, and the first surface is arranged away from the substrate relative to the second surface; The first portion includes a first sub-portion located on the first surface and a second sub-portion located on the side surface, and at least the first sub-portion includes the hydrophobic surface.

3. The display panel according to claim 1, characterized in that: The inorganic layer includes a first inorganic encapsulation layer, and a surface of the first inorganic encapsulation layer facing away from the substrate includes the hydrophobic surface.

4. The display panel according to claim 1, characterized in that: Along a direction away from the substrate, the inorganic layer includes a first inorganic encapsulation layer and a sacrificial layer which are stacked, and a surface of the sacrificial layer on a side away from the substrate includes the hydrophobic surface.

5. The display panel according to claim 1, characterized in that: The material of the first inorganic encapsulation layer includes at least one of silicon nitride, silicon oxide, and silicon oxynitride; and / or, The material of the sacrificial layer includes at least one of silicon nitride, silicon oxide, and silicon oxynitride.

6. The display panel according to claim 1, characterized in that: The roughness of the hydrophobic surface is greater than the roughness of the surface of the second portion on a side facing away from the substrate.

7. The display panel according to claim 1, characterized in that: The hydrophobic surface includes fluorine element.

8. The display panel according to claim 1, characterized in that: The display panel includes a ring of the blocking structure arranged around the display area.

9. A method for preparing a display panel, characterized in that: The following steps are involved: Providing a substrate, the substrate comprising a display area and a non-display area adjacent to the display area; forming a barrier structure on one side of the substrate, wherein the barrier structure is formed in the non-display area and at least partially surrounds the display area; forming an inorganic layer, the inorganic layer comprising a first portion formed on a side of the barrier structure away from the substrate and a second portion formed on a side of the substrate, the first portion and the second portion being connected, and a surface of a side of the first portion away from the substrate being subjected to a hydrophobic treatment to form a hydrophobic surface; An organic layer is formed on a side of the second portion facing away from the substrate, and the organic layer is located in a region surrounded by the barrier structure.

10. The method for preparing a display panel according to claim 9, characterized in that: The step of performing a hydrophobic treatment on a surface of the first portion facing away from the substrate to form a hydrophobic surface includes: Providing a mask, wherein the mask includes a mask opening corresponding to the first portion; Any one of hydrogen fluoride, sulfur hexafluoride and carbon tetrafluoride is used as a plasma source, and a plasma treatment is performed on a surface of the first portion facing away from the substrate through the mask opening to form the hydrophobic surface.

11. A display device, characterized in that: A display panel comprising any one of claims 1 to 8.

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