Display panel, display device and preparation method of display panel

Abstract

The embodiment of the invention provides a display panel, a display device and a preparation method of the display panel. The display panel comprises a substrate; the pixel defining layer is arranged on one side of the substrate, and the pixel defining layer comprises a pixel limiting part and a pixel opening formed in the pixel limiting part; the light-emitting layer is arranged on the side, away from the substrate, of the pixel defining layer, the light-emitting layer comprises a light-emitting part, at least part of the light-emitting part is located in the pixel openings, a receding opening is formed in the light-emitting part, the receding opening is located between every two adjacent pixel openings, and a hydrophobic structure is arranged in each receding opening. The hydrophobic structure is arranged in the abdicating opening, so that the material of the light-emitting layer is difficult to fall in the area where the abdicating opening is located, the transverse crosstalk between different pixel openings is further improved, and the display effect and the use performance of the display panel can be improved.

Description

Technical Field

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

[0002] Organic Light-Emitting Diode (OLED) displays, also known as organic electroluminescent displays, offer a range of advantages over existing liquid crystal displays (LCDs), including autonomous illumination, wide viewing angles, ultra-lightness, ultra-thinness, high brightness, low power consumption, and fast response times. Their response speed can be up to 1,000 times that of LCDs, making them a highly popular flat-panel display product both domestically and internationally, with broad application prospects. Quantum dot (QD) materials, with their high color purity, adjustable wavelength, and stable material properties, offer significant advantages in the pursuit of high-color-gamut color displays.

[0003] However, the performance of current display products needs to be improved. Summary of the Invention

[0004] The embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel, aiming to improve the performance of the display panel.

[0005] An embodiment of the first aspect of the present application provides a display panel, comprising: a substrate; a pixel definition layer, arranged on one side of the substrate, the pixel definition layer comprising a pixel defining portion and a pixel opening opened in the pixel defining portion; a light-emitting layer, arranged on a side of the pixel definition layer facing away from the substrate, the light-emitting layer comprising a light-emitting portion, at least part of the light-emitting portion being located within the pixel opening, wherein a clearance opening is provided on the light-emitting portion, the clearance opening being located between two adjacent pixel openings, and a hydrophobic structure is provided within the clearance opening.

[0006] According to an embodiment of the first aspect of the present application, the hydrophobic structure includes a first sublayer and a second sublayer, the second sublayer is located on the side of the first sublayer facing away from the substrate, at least part of the material of the second sublayer is bonded to at least part of the material of the first sublayer, and the surface of the second sublayer facing away from the first sublayer is a hydrophobic surface.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the second sublayer includes a composite material, the composite material includes a first end, a second end and a connecting portion connecting the first end and the second end, the first end is bonded to at least part of the material of the first sublayer, and the second end includes a hydrophobic group.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the first sublayer includes at least one of metal oxide and inorganic matter, and the first end includes silane; or, the material of the first sublayer includes metal material, and the first end includes thiol.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the connecting portion includes an alkyl group.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the linking portion includes an alkyl group with 0-12 carbon atoms.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the second end comprises a perfluoroalkyl group having 1 to 12 carbon atoms or perfluorobenzene and a derivative of perfluorobenzene.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the combined material comprises

[0013]

[0014] At least one of .

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the first sublayer is located on a side of the pixel defining portion facing away from the substrate.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the first sublayer is located on the side of the pixel definition layer facing the substrate, a hydrophobic opening is opened on the pixel defining portion, and the first sublayer is in contact and connected with the second sublayer in the hydrophobic opening.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, a first electrode is provided on the side of the substrate facing the pixel definition layer, the orthographic projection of the first electrode on the substrate and the orthographic projection of the pixel opening on the substrate at least partially overlap, and the first sublayer and the first electrode are provided on the same layer.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the first sublayer and the first electrode are made of the same material.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, at least one clearance opening surrounds one or more pixel openings in a closed ring shape.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, at least one clearance opening is extended on one side of the pixel opening.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, at least one light-emitting layer includes a red light-emitting unit and a blue light-emitting unit located at the pixel opening, and at least one clearance port is located between the red light-emitting unit and the blue light-emitting unit.

[0022] According to any of the foregoing embodiments of the first aspect of the present application, the light-emitting layer includes a red light-emitting unit, a blue light-emitting unit, and a green light-emitting unit located at different pixel openings, at least one give-way opening is located between the red light-emitting unit and the blue light-emitting unit, and at least one give-way opening is located between the green light-emitting unit and the blue light-emitting unit.

[0023] An embodiment of the second aspect of the present application further provides a display device, comprising a display panel according to any one of the above-mentioned embodiments of the first aspect.

[0024] An embodiment of the third aspect of the present application further provides a method for manufacturing a display panel, comprising:

[0025] A pixel definition layer and a first sublayer are prepared on a substrate, wherein the pixel definition layer includes a pixel definition portion and a pixel opening opened in the pixel definition portion, and the first sublayer is exposed from the pixel definition layer;

[0026] Disposing a photoresist layer on a side of the pixel definition layer and the first sub-layer facing away from the substrate, patterning the photoresist layer to form a first opening, and exposing the first sub-layer through the first opening;

[0027] A composite material layer is provided on a side of the photoresist layer facing away from the substrate, at least a portion of the composite material is bonded to at least a portion of the material of the first sublayer within the first opening to form a second sublayer, and the first sublayer and the second sublayer are combined to form a hydrophobic structure;

[0028] removing the combined material layer from an area outside the first opening;

[0029] A light-emitting portion is arranged on the side of the pixel definition layer facing away from the substrate, at least a portion of the light-emitting portion is located in the pixel opening, and the light-emitting portion surrounds the hydrophobic structure to form a clearance opening.

[0030] According to an embodiment of the third aspect of the present application, a pixel definition layer and a first sublayer are prepared on a substrate, the pixel definition layer including a pixel defining portion and a pixel opening opened in the pixel defining portion, and the first sublayer is exposed from the pixel definition layer.

[0031] A pixel definition material layer is provided on one side of the substrate, and the pixel definition material layer is patterned to form a pixel definition layer, wherein the pixel definition layer includes a pixel defining portion and a pixel opening;

[0032] Disposing a first material layer on a side of the pixel definition layer facing away from the substrate, and patterning the first material layer to form a first sublayer;

[0033] or,

[0034] Disposing a first material layer on a substrate, and patterning the first material layer to form a first sublayer;

[0035] A pixel definition material layer is provided on one side of the substrate and patterned to form a pixel definition layer. The pixel definition layer includes a pixel definition portion and a pixel opening. A hydrophobic port is also provided on the pixel definition portion, and the first sublayer is exposed from the hydrophobic port.

[0036] In the display panel provided in the present application, the display panel includes a substrate, a pixel definition layer, a light-emitting layer, and a hydrophobic structure. The pixel definition layer is provided on the substrate and includes a pixel defining portion and a pixel opening. The pixel opening is used to accommodate at least a portion of the light-emitting portion of the light-emitting layer to achieve light-emitting display of the display panel. A clearance port is provided on the light-emitting portion. The clearance port is located between adjacent pixel openings and does not affect the light-emitting display of the display panel. A hydrophobic structure is provided in the clearance port, making it difficult for the material of the light-emitting layer to fall into the area where the clearance port is located, thereby improving the lateral crosstalk between different pixel openings, and can improve the display effect and performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0038] Figure 1 is a structural diagram of a display panel provided in an embodiment of the present application;

[0039] Figure 2 yes Figure 1 A cross-sectional view at AA in one example;

[0040] Figure 3 This is a schematic structural diagram of a composite material for a display panel provided in an embodiment of the present application;

[0041] Figure 4 yes Figure 1 A cross-sectional view at AA in another example;

[0042] Figure 5 yes Figure 1 In yet another example, a cross-sectional view at AA;

[0043] Figure 6 is a structural schematic diagram of a display panel provided by another embodiment of the present application;

[0044] Figure 7 is a structural schematic diagram of a display panel provided in yet another embodiment of the present application;

[0045] Figure 8 is a structural schematic diagram of a display panel provided in yet another embodiment of the present application;

[0046] Figure 9is a structural schematic diagram of a display panel provided by another embodiment of the present application;

[0047] Figure 10 is a structural schematic diagram of a display panel provided by another embodiment of the present application;

[0048] Figure 11 This is a schematic flow chart of a method for manufacturing a display panel provided in an embodiment of the present application;

[0049] Figures 12 to 16 This is a schematic structural diagram of a display panel manufacturing process provided in an embodiment of the present application;

[0050] Figure 17 This is a flow chart of a step in a method for manufacturing a display panel provided in an embodiment of the present application;

[0051] Figure 18 and Figure 19 This is a schematic structural diagram of a manufacturing process of a certain step in a method for manufacturing a display panel provided in an embodiment of the present application;

[0052] Figure 20 This is a schematic flow chart of a step in a method for manufacturing a display panel provided in another embodiment of the present application;

[0053] Figure 21 and Figure 22 This is a structural diagram of a manufacturing process of a certain step in a method for manufacturing a display panel provided in another embodiment of the present application.

[0054] Description of reference numerals:

[0055] 10. Display panel;

[0056] 100, substrate; 110, first electrode;

[0057] 200, pixel definition layer; 210, pixel definition portion; 220, pixel opening; 230, hydrophobic port;

[0058] 300, light-emitting layer; 301, first carrier layer; 302, second carrier layer; 310, light-emitting portion; 311, opening; 320, light-emitting unit; 321, blue light-emitting unit; 322, red light-emitting unit; 323, green light-emitting unit;

[0059] 400, hydrophobic structure; 410, first sublayer; 420, second sublayer; 402, composite material; 421, first end; 422, second end; 423, connecting portion;

[0060] 500, second electrode layer;

[0061] 600. Encapsulation layer. DETAILED DESCRIPTION

[0062] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are set forth in order to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the well-known structures and technologies are not shown in order to avoid unnecessary ambiguity in the present application; and, for clarity, the sizes of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0063] In the description of this application, it should be noted that, unless otherwise specified, "plurality" means more than two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are merely for the purpose of facilitating the description of this application and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0065] In order to better understand this application, Figures 1 to 11 The display panel, the display device and the method for manufacturing the display panel according to the embodiments of the present application are described in detail.

[0066] Please also refer to Figure 1 and Figure 2 , Figure 1 is a top view of a display panel 10 provided in an embodiment of the present application, Figure 2 yes Figure 1 Cross-sectional view at AA in the middle.

[0067] like Figure 1 and Figure 2As shown, an embodiment of the first aspect of the present application provides a display panel 10, comprising: a substrate 100; a pixel definition layer 200, arranged on one side of the substrate 100, the pixel definition layer 200 comprising a pixel defining portion 210 and a pixel opening 220 opened in the pixel defining portion 210; a light-emitting layer 300, arranged on a side of the pixel definition layer 200 facing away from the substrate 100, the light-emitting layer 300 comprising a light-emitting portion 310, at least a portion of the light-emitting portion 310 being located within the pixel opening 220, wherein a clearance opening 311 is provided on the light-emitting portion 310, the clearance opening 311 being located between two adjacent pixel openings 220, and a hydrophobic structure 400 is provided within the clearance opening 311.

[0068] In the display panel 10 provided in the present application, the display panel 10 includes a substrate 100, a pixel definition layer 200, a light-emitting layer 300, and a hydrophobic structure 400. The pixel definition layer 200 is disposed on the substrate 100 and includes a pixel defining portion 210 and a pixel opening 220. The pixel opening 220 is used to accommodate at least a portion of the light-emitting portion 310 of the light-emitting layer 300 to achieve light-emitting display of the display panel 10. A clearance opening 311 is provided on the light-emitting portion 310. The clearance opening 311 is located between adjacent pixel openings 220 and does not affect the light-emitting display of the display panel 10. The hydrophobic structure 400 is disposed within the clearance opening 311, making it difficult for material of the light-emitting layer 300 to fall into the area where the clearance opening 311 is located, thereby improving lateral crosstalk between different pixel openings 220, and can improve the display effect and performance of the display panel 10.

[0069] Optionally, the light-emitting layer 300 further includes a light-emitting unit 320 located within each pixel opening 220. Optionally, the light-emitting units 320 may emit different colors to achieve a colored display of the display panel 10. For example, the light-emitting unit 320 includes a red light-emitting unit 322 for emitting red light, a green light-emitting unit 323 for emitting green light, and a blue light-emitting unit 321 for emitting blue light.

[0070] Optionally, the light-emitting portion 310 may include a common layer. For example, the light-emitting portion 310 may include a first carrier layer 301 and a second carrier layer 302. For example, the light-emitting portion 310 may include at least one of a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer, and an electron injection layer. The light-emitting layer 300 also includes a light-emitting unit 320. The first carrier layer 301 includes at least one of the aforementioned hole injection layer, hole transport layer, and electron blocking layer, and the first carrier layer 301 is located on the side of the light-emitting unit 320 facing the substrate 100. The second carrier layer 302 includes at least one of the aforementioned hole blocking layer, electron transport layer, and electron injection layer, and the second carrier layer 302 is located on the side of the light-emitting unit 320 facing away from the substrate 100. Since the light-emitting portion 310 includes a common layer, carriers can flow laterally within the light-emitting portion 310. During use of the display panel 10 , when a single light-emitting unit 320 is driven to emit light, the carriers may flow laterally in the light-emitting portion 310 , which may cause the adjacent light-emitting unit 320 to emit light, thereby affecting the display effect of the display panel 10 .

[0071] In an embodiment of the present application, a hydrophobic structure 400 is provided between adjacent pixel openings 220. The hydrophobic structure 400 has a certain hydrophobicity. When preparing the light-emitting portion 310, it is difficult for the light-emitting portion 310 to fall at the position where the hydrophobic structure 400 is located, thereby forming a clearance opening 311. The clearance opening 311 is located between adjacent pixel openings 220, that is, the clearance opening 311 is located between adjacent light-emitting units 320. It is difficult for carriers to flow between adjacent pixel openings 220 through the clearance opening 311, thereby improving the problem of lateral crosstalk and improving the display effect of the display panel 10.

[0072] The hydrophobic structure 400 includes a hydrophobic material and can be provided in various ways. For example, a surface of the hydrophobic structure 400 facing away from the substrate 100 can be provided with a plurality of hydrophobic grooves.

[0073] In other optional embodiments, such as Figure 1 and Figure 4 As shown, the hydrophobic structure 400 includes a first sublayer 410 and a second sublayer 420. The second sublayer 420 is located on the side of the first sublayer 410 facing away from the substrate 100. At least part of the material of the second sublayer 420 is bonded to at least part of the material of the first sublayer 410, and the surface of the second sublayer 420 facing away from the first sublayer 410 is a hydrophobic surface.

[0074] In these optional embodiments, the hydrophobic structure 400 is divided into a two-layer structure, and the hydrophobic structure 400 includes a first sublayer 410 and a second sublayer 420. The first sublayer 410 can be directly coated on a preset position, and the material of the second sublayer 420 is bonded to the material of the first sublayer 410, which can ensure the stability of the position of the second sublayer 420 and fix the second sublayer 420 at the preset position. The surface of the second sublayer 420 facing away from the first sublayer 410 is a hydrophobic surface, so that in the process of forming the light-emitting portion 310, the material of the light-emitting portion 310 is difficult to fall on the second sublayer 420, thereby forming a makeshift opening 311, thereby improving the display effect of the display panel 10.

[0075] Optional, such as Figures 1 to 4 As shown, the second sub-layer 420 includes a composite material 402, the molecular structure of the composite material 402 includes a first end 421, a second end 422 and a connecting portion 423 connecting the first end 421 and the second end 422, the first end 421 is bonded to at least part of the material of the first sub-layer 410, and the second end 422 includes a hydrophobic group.

[0076] In these optional embodiments, the material of the second sub-layer 420 is a composite material 402, which includes three parts. The first end 421 of the composite material 402 can bond with at least a portion of the material of the first sub-layer 410, anchoring the first sub-layer 410 in a predetermined position. The second end 422 of the composite material 402 includes a hydrophobic group, thereby forming a hydrophobic surface on the side of the second sub-layer 420 facing away from the first sub-layer 410. The connecting portion 423 of the composite material 402 can connect the first end 421 and the second end 422 to form a stable molecular structure.

[0077] There are many ways to select the material of the first sublayer 410. The material of the first sublayer 410 may include at least one of metal, metal oxide, inorganic substance, etc., so that the first sublayer 410 can be stably set on the substrate 100 or the pixel definition layer 200, ensuring the stability of the position of the first sublayer 410 and the substrate 100 or the pixel definition layer 200.

[0078] When the material of the first sub-layer 410 includes at least one of metal oxide and inorganic matter, the first end portion 421 includes silane, so that the composite material 402 can be bonded to the first sub-layer 410 via silane.

[0079] When the material of the first sub-layer 410 includes a metal material, the first end portion 421 includes a thiol group, so that the composite material 402 can be bonded to the first sub-layer 410 via the thiol group.

[0080] Optionally, the second end portion 422 includes a 1-12 carbon perfluoroalkyl group or perfluorobenzene and its derivatives, so that the second end portion 422 has good hydrophobicity, so that the material of the light-emitting portion 310 is difficult to be compatible with the second end portion 422, thereby easily forming the clearance opening 311.

[0081] Optionally, the linker 423 may include an alkyl group, for example, an alkyl group having 0 to 12 carbon atoms. The alkyl group can stably connect to the silane and a perfluoroalkyl group having 1 to 12 carbon atoms, perfluorobenzene, and derivatives thereof. The silane can also stably connect to the mercapto group and a perfluoroalkyl group having 1 to 12 carbon atoms, perfluorobenzene, and derivatives thereof, thereby forming a relatively stable molecular structure.

[0082] Optionally, the combined material 402 may be, for example:

[0083]

[0084]

[0085] At least one of .

[0086] There are many ways to set the position of the first sublayer 410. For example, the first sublayer 410 can be directly set on the pixel definition layer 200. After the pixel definition layer 200 is prepared, the first sublayer 410 is directly prepared on the side of the pixel defining portion 210 between two adjacent pixel openings 220 facing away from the substrate 100.

[0087] In other optional embodiments, such as Figure 1 and Figure 5 As shown, the first sublayer 410 is located on the side of the substrate 100 facing the pixel definition layer 200 , a hydrophobic opening 230 is opened on the pixel defining portion 210 , and the first sublayer 410 is in contact with the second sublayer 420 in the hydrophobic opening 230 .

[0088] In these optional embodiments, the first sublayer 410 is located on the side of the pixel definition layer 200 facing the substrate 100. During the manufacturing process of the display panel 10, the first sublayer 410 can be manufactured first, followed by the pixel definition layer 200. This can reduce the impact of the manufacturing of the first sublayer 410 on the manufacturing of the pixel definition layer 200. The pixel defining portion 210 is provided with a hydrophobic opening 230, so that the first sublayer 410 can be exposed through the hydrophobic opening 230, and the second sublayer 420 is in contact with and connected to the first sublayer 410 within the hydrophobic opening 230.

[0089] In some optional embodiments, a first electrode 110 is further provided on the side of the substrate 100 facing the pixel definition layer 200, and the orthographic projection of the first electrode 110 on the substrate 100 and the orthographic projection of the pixel opening 220 on the substrate 100 at least partially overlap, and the first sublayer 410 and the first electrode 110 are arranged on the same layer.

[0090] In these optional embodiments, the first electrode 110 is used to drive the light-emitting unit 320 in the pixel opening 220 to emit light, and the first electrode 110 and the first sublayer 410 are arranged in the same layer, so that the first electrode 110 and the first sublayer 410 can be prepared and formed in the same process steps to simplify the preparation process of the display panel 10.

[0091] Optionally, a second electrode layer 500 is further provided on the side of the light emitting layer 300 facing away from the substrate 100 , and the second electrode layer 500 and the first electrode 110 cooperate to drive the light emitting layer 300 to emit light. Optionally, an encapsulation layer 600 is further provided on the side of the second electrode layer 500 facing away from the substrate 100 .

[0092] Optionally, the first sublayer 410 and the first electrode 110 are made of the same material. For example, the first electrode 110 may be made of a conductive metal, and the first sublayer 410 may also be made of a metal material. The second sublayer 420 may be bonded to the first sublayer 410 .

[0093] The clearance opening 311 is filled with a hydrophobic structure 400. The orthographic projection of the clearance opening 311 on the substrate 100 overlaps with the orthographic projection of the hydrophobic structure 400 on the substrate 100. There are various ways to configure the shape and position of the clearance opening 311, that is, there are various ways to configure the position and shape of the hydrophobic structure 400. The orthographic projection of the clearance opening 311 on the substrate 100 and the orthographic projection of the hydrophobic structure 400 on the substrate 100 have the same shape and location.

[0094] Optional, such as Figure 1 As shown, at least one clearance opening 311 surrounds one or more pixel openings 220 in a closed ring shape, that is, the hydrophobic structure 400 surrounds one or more pixel openings 220 in a closed ring shape, making it difficult for carriers in the ring-shaped clearance opening 311 to flow outside the clearance opening 311, thereby better improving the display effect of the display panel 10.

[0095] Optionally, the clearance opening 311 may be formed in a closed ring around a single pixel opening 220 , and a closed ring-shaped clearance opening 311 may be provided around each pixel opening 220 to improve the problem of carrier crosstalk between any two adjacent pixel openings 220 .

[0096] In other optional embodiments, such as Figure 6As shown, at least one clearance opening 311 is provided extending on one side of the pixel opening 220. For example, at least one clearance opening 311 extends in a strip shape on one side of the pixel opening 220, and at least one hydrophobic structure 400 extends in a strip shape on one side of the pixel opening 220. This simplifies the shapes of the clearance opening 311 and the hydrophobic structure 400 and facilitates their preparation and molding.

[0097] In some alternative embodiments, Figure 7 and Figure 8 As shown, the light-emitting layer 300 includes a red light-emitting unit 322 and a blue light-emitting unit 321 located in the pixel opening 220, and at least one clearance opening 311 is located between the red light-emitting unit 322 and the blue light-emitting unit 321 to improve the crosstalk problem between the red light-emitting unit 322 and the blue light-emitting unit 321. Figure 7 FIG. 3 shows a clearance opening 311 located between the red light emitting unit 322 and the blue light emitting unit 321. Figure 8 It is shown that two clearance openings 311 are located between the red light emitting unit 322 and the blue light emitting unit 321 . In other embodiments, three or more clearance openings 311 may be provided between the red light emitting unit 322 and the blue light emitting unit 321 .

[0098] In some other optional embodiments, Figure 9 and Figure 10 As shown, at least one clearance opening 311 is located between the red light-emitting unit 322 and the blue light-emitting unit 321, and at least one clearance opening 311 is located between the green light-emitting unit 323 and the blue light-emitting unit 321. This improves the lateral crosstalk between the red light-emitting unit 322 and the blue light-emitting unit 321, and between the green light-emitting unit 323 and the blue light-emitting unit 321.

[0099] In any of the above embodiments, the material of the light-emitting portion 310 can be selected in a variety of ways. For example, the material of the light-emitting portion 310 includes ink, and the light-emitting portion 310 is prepared on the pixel definition layer 200 using a process such as inkjet printing or coating. The light-emitting layer 300 can include quantum dot light-emitting diodes. In other embodiments, the light-emitting layer 300 can also include organic light-emitting diodes.

[0100] In any of the above embodiments, the hydrophobic structure 400 has a hydrophobic property. The hydrophobic property here refers to a "hydrophobic and oleophobic" property, which means that liquids are unlikely to adhere to or come into contact with the material of the light-emitting portion 310. The hydrophobic property refers to the property of being unlikely to come into contact with liquids, not simply being unlikely to come into contact with water.

[0101] The embodiment of the second aspect of the present application further provides a display device, comprising the display panel 10 of any of the above-mentioned embodiments of the first aspect. Since the display device provided by the embodiment of the second aspect of the present application comprises the display panel 10 of any of the above-mentioned embodiments of the first aspect, the display device provided by the embodiment of the second aspect of the present application has the beneficial effects of the display panel 10 of any of the above-mentioned embodiments of the first aspect, which will not be further elaborated here.

[0102] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0103] The third aspect of the present application also provides a method for preparing a display panel 10, and the display panel 10 may be any of the above-mentioned first aspect embodiments. Figures 1 to 11 As shown, the method for preparing the display panel 10 may include:

[0104] Step S01: Figure 12 As shown, a pixel definition layer 200 and a first sublayer 410 are prepared on a substrate 100 . The pixel definition layer 200 includes a pixel defining portion 210 and a pixel opening 220 opened in the pixel defining portion 210 . The first sublayer 410 is exposed from the pixel definition layer 200 .

[0105] Step S02: Figure 13 As shown, a photoresist layer is disposed on the side of the pixel definition layer 200 and the first sub-layer 410 facing away from the substrate 100 , and the photoresist layer is patterned to form a first opening, through which the first sub-layer 410 is exposed.

[0106] Step S03: Figure 14 and Figure 15 As shown, a composite material layer is provided on the side of the photoresist layer facing away from the substrate 100 , and at least a portion of the composite material 402 is bonded to at least a portion of the material of the first sublayer 410 in the first opening to form a second sublayer 420 , and the first sublayer 410 and the second sublayer 420 are combined to form a hydrophobic structure 400 .

[0107] Step S04: removing the combined material layer and the photoresist layer in the area outside the first opening.

[0108] Optionally, in step S03, the first sub-layer 410 exposed by the first opening is placed in an environment of the composite material 402. For example, the first sub-layer 410 exposed by the first opening is placed in a solution containing the composite material 402. The first end of the composite material 402 bonds with the first sub-layer 410 to form the second sub-layer 420, with the second end of the composite material 402 being located on a side facing away from the first sub-layer 410. In step S04, excess composite material 402 can be removed by vacuuming or solvent washing, and then the photoresist layer can be stripped.

[0109] Step S05: Figure 16 As shown, a light emitting portion 310 is disposed on the side of the pixel definition layer 200 facing away from the substrate 100 . At least a portion of the light emitting portion 310 is located in the pixel opening 220 , and the light emitting portion 310 surrounds the hydrophobic structure 400 to form a clearance opening 311 .

[0110] In the display panel 10 prepared and formed by the method provided in the embodiment of the present application, the display panel 10 includes a substrate 100, a pixel definition layer 200, a light-emitting layer 300, and a hydrophobic structure 400. The pixel definition layer 200 is disposed on the substrate 100 and includes a pixel defining portion 210 and a pixel opening 220. The pixel opening 220 is used to accommodate at least a portion of the light-emitting portion 310 of the light-emitting layer 300 to achieve light-emitting display of the display panel 10. A clearance opening 311 is provided on the light-emitting portion 310. The clearance opening 311 is located between adjacent pixel openings 220 and does not affect the light-emitting display of the display panel 10. The hydrophobic structure 400 is disposed in the clearance opening 311, making it difficult for material of the light-emitting layer 300 to fall into the area where the clearance opening 311 is located, thereby improving the lateral crosstalk between unused pixel openings 220, and improving the display effect and performance of the display panel 10.

[0111] There are many ways to set up step S01, for example, Figure 17 As shown, step S01 may include:

[0112] Step S011: Figure 18 As shown, a pixel definition material layer is disposed on one side of the substrate 100 , and the pixel definition material layer is patterned to form a pixel definition layer 200 . The pixel definition layer 200 includes a pixel defining portion 210 and a pixel opening 220 .

[0113] Step S012: Figure 19 As shown, a first material layer is disposed on a side of the pixel definition layer 200 facing away from the substrate 100 , and the first material layer is patterned to form a first sub-layer 410 .

[0114] In these optional embodiments, the first sublayer 410 is located above the pixel definition layer 200. After the pixel definition layer 200 is prepared in step S011, the first sublayer 410 is prepared on the pixel definition layer 200. This can simplify the patterning process of the pixel definition layer 200. There is no need to form a hydrophobic port 230 on the pixel definition layer. The subsequent second sublayer 420 can fall directly on the first sublayer 410.

[0115] In other embodiments, Figure 20 As shown, step S01 may further include:

[0116] Step S011': Figure 21 As shown, a first material layer is provided on the substrate 100 , and the first material layer is patterned to form a first sub-layer 410 .

[0117] Step S012': Figure 22 As shown, a pixel definition material layer is provided on one side of the substrate 100, and the pixel definition material layer is patterned to form a pixel definition layer 200, the pixel definition layer 200 includes a pixel definition portion 210 and a pixel opening 220, and a hydrophobic port 230 is also provided on the pixel definition portion 210, and the first sublayer 410 is exposed by the hydrophobic port 230.

[0118] In these optional embodiments, the first sub-layer 410 is prepared before the pixel definition layer 200. After the first sub-layer 410 is prepared and formed in step S011', the pixel definition layer 200 is prepared in step S012'. This can improve the impact of the patterning process of the first material layer on the pixel definition layer 200, and can also prevent the material of the first sub-layer 410 from falling into the pixel opening 220 and affecting the luminescence of the display panel 10, thereby improving the display effect of the display panel 10.

[0119] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A display panel, characterized in that: include: substrate; A pixel definition layer is provided on one side of the substrate, wherein the pixel definition layer includes a pixel defining portion and a pixel opening opened in the pixel defining portion; a light-emitting layer disposed on a side of the pixel definition layer facing away from the substrate, the light-emitting layer including a light-emitting portion, at least a portion of which is located within the pixel opening; Wherein, a clearance opening is provided on the light emitting portion, the clearance opening is located between two adjacent pixel openings and a hydrophobic structure is provided in the clearance opening.

2. The display panel according to claim 1, wherein: The hydrophobic structure includes a first sublayer and a second sublayer, wherein the second sublayer is located on the side of the first sublayer facing away from the substrate, at least part of the material of the second sublayer is bonded to at least part of the material of the first sublayer, and the surface of the second sublayer facing away from the first sublayer is a hydrophobic surface.

3. The display panel according to claim 2, wherein: The second sub-layer includes a composite material, the molecular structure of the composite material includes opposite first ends, a second end, and a connecting portion connecting the first end and the second end, the first end is bonded to at least a portion of the material of the first sub-layer, and the second end includes a hydrophobic group; Preferably, the material of the first sublayer includes at least one of a metal oxide and an inorganic substance, and the first end portion includes silane; or the material of the first sublayer includes a metal material, and the first end portion includes a mercapto group; Preferably, the linking portion comprises an alkyl group; Preferably, the linking portion comprises an alkyl group of 0-12 carbons; Preferably, the second end comprises a 1-12 carbon perfluoroalkyl group or perfluorobenzene and a perfluorobenzene derivative; Preferably, the combined material comprises At least one of .

4. The display panel according to claim 2, wherein: The first sublayer is located on a side of the pixel defining portion facing away from the substrate.

5. The display panel according to claim 2, wherein: The first sublayer and the pixel definition layer are located on the same side of the substrate. A hydrophobic opening is opened on the pixel definition portion. The first sublayer is in contact with and connected to the second sublayer in the hydrophobic opening.

6. The display panel according to claim 5, wherein: A first electrode is provided on a side of the substrate facing the pixel definition layer, wherein an orthographic projection of the first electrode on the substrate at least partially overlaps with an orthographic projection of the pixel opening on the substrate, and the first sublayer and the first electrode are provided on the same layer; Preferably, the first sublayer and the first electrode are made of the same material.

7. The display panel according to claim 1, wherein: At least one of the clearance openings surrounds one or more of the pixel openings to form a closed ring; Alternatively, at least one of the clearance openings is extended on one side of the pixel opening; Alternatively, at least one of the light-emitting layers includes a red light-emitting unit and a blue light-emitting unit located at the pixel opening, and at least one of the give-way openings is located between the red light-emitting unit and the blue light-emitting unit; Alternatively, the light-emitting layer includes a red light-emitting unit, a blue light-emitting unit and a green light-emitting unit located in different pixel openings, at least one of the give-way openings is located between the red light-emitting unit and the blue light-emitting unit, and at least one of the give-way openings is located between the green light-emitting unit and the blue light-emitting unit.

8. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 7.

9. A method for preparing a display panel, characterized in that: include: A pixel definition layer and a first sublayer are prepared on a substrate, wherein the pixel definition layer includes a pixel defining portion and a pixel opening opened in the pixel defining portion, and the first sublayer is exposed from the pixel definition layer; Disposing a photoresist layer on a side of the pixel definition layer and the first sub-layer facing away from the substrate, patterning the photoresist layer to form a first opening, wherein the first sub-layer is exposed through the first opening; Disposing a composite material layer on a side of the photoresist layer facing away from the substrate, wherein at least a portion of the composite material is bonded to at least a portion of the material of the first sub-layer within the first opening to form a second sub-layer, and the first sub-layer and the second sub-layer are combined to form a hydrophobic structure; removing the combined material layer from an area outside the first opening; A light-emitting portion is provided on a side of the pixel definition layer away from the substrate, at least a portion of the light-emitting portion is located in the pixel opening, and the light-emitting portion surrounds the hydrophobic structure to form a clearance opening.

10. The method according to claim 9, characterized in that The step of preparing a pixel definition layer and a first sublayer on the substrate, wherein the pixel definition layer includes a pixel defining portion and a pixel opening opened in the pixel defining portion, and exposing the first sublayer from the pixel definition layer comprises: Disposing a pixel definition material layer on one side of the substrate, and patterning the pixel definition material layer to form a pixel definition layer, wherein the pixel definition layer includes the pixel defining portion and the pixel opening; Disposing a first material layer on a side of the pixel definition layer facing away from the substrate, and patterning the first material layer to form the first sub-layer; or, Disposing a first material layer on the substrate, and patterning the first material layer to form a first sublayer; A pixel definition material layer is provided on one side of the substrate, and the pixel definition material layer is patterned to form a pixel definition layer, wherein the pixel definition layer includes the pixel definition portion and the pixel opening, and a hydrophobic port is further provided on the pixel definition portion, and the first sublayer is exposed through the hydrophobic port.

Images