Display panel, method for manufacturing display panel, and display device

Abstract

The present application provides a display panel, a method for manufacturing a display panel, and a display device. The display panel includes: a pixel definition body having a sloped surface on one side close to a pixel opening area, an anode definition layer arranged in a groove shape, an edge of the anode definition layer adhered to the pixel definition body, and a sloped position where the anode definition layer and the pixel definition body are adhered; an anode layer arranged on a side of the anode definition layer away from a substrate, an edge of the anode layer adhered to the pixel definition body, and a shape of the anode layer identical to that of the anode definition layer, so that the shape of the anode layer can be defined by the anode definition layer to form a groove-shaped anode layer, and the side of the anode layer is sloped, which can expand the emission area of ​​the display panel, increase the emission angle of the emitted light, and improve the visual color deviation of the display panel, and the sloped anode layer can reflect a portion of the light, thereby realizing the reuse of light, improving the efficiency of light emission, reducing the display power consumption of the display panel, and extending the life of the display panel.

Description

Technical Field

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

[0002] Each film layer in a conventional OLED (Organic Light-Emitting Diode) display panel is a flat layer. In the pixel opening area of ​​the OLED display panel, the anode layer is arranged horizontally. Figure 1 As shown, the anode layer 2 is a horizontally arranged flat layer and is covered by the pixel definition layer 1, with only the pixel opening area exposed for subsequent deposition of film materials.

[0003] Since the anode layer 2 is arranged horizontally, see Figure 1 As shown, the maximum visual range of a single pixel is small. When the user's viewing angle is further increased, the pixel light is blocked, and color cast occurs, affecting the user's visual experience. Summary of the Invention

[0004] In view of this, this Summary of the Invention section is provided to briefly introduce the concepts that will be described in detail in the Detailed Description of the Invention section below. This Summary of the Invention section is not intended to identify key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] The purpose of the present application is to provide a display panel, a method for manufacturing a display panel, and a display device, which can expand the viewing angle of pixels and thus improve the impact of visual color shift.

[0006] To achieve the above objectives, this application has the following technical solutions:

[0007] In a first aspect, an embodiment of the present application provides a display panel, comprising:

[0008] substrate;

[0009] A pixel definition layer is provided on the substrate and includes at least two pixel definition bodies spaced apart from each other, wherein the space between two adjacent pixel definition bodies is a pixel opening area, and a side of the pixel definition body close to the pixel opening area is a sloped surface;

[0010] an anode definition layer, disposed on the substrate in the pixel opening area, wherein the anode definition layer is configured in a groove shape, an edge of the anode definition layer is aligned with the pixel definition body, and a position where the anode definition layer and the pixel definition body are aligned is sloped;

[0011] The anode layer is arranged on a side of the anode definition layer away from the substrate. The edge of the anode layer is in contact with the pixel definition body, and the shape of the anode layer is the same as that of the anode definition layer.

[0012] In a second aspect, an embodiment of the present application provides a method for manufacturing a display panel, comprising:

[0013] providing a substrate;

[0014] A pixel definition layer is prepared on the substrate, wherein the pixel definition layer includes at least two pixel definition bodies spaced apart from each other, the space between two adjacent pixel definition bodies is a pixel opening area, and the side of the pixel definition body close to the pixel opening area is a sloped surface;

[0015] An anode initialization layer is formed on the substrate in the pixel opening area, wherein the edge of the anode initialization layer is aligned with the pixel definition body, and the anode initialization layer is etched to form a groove-shaped anode definition layer, wherein the position where the anode definition layer is aligned with the pixel definition body is sloped;

[0016] An anode material is sputtered on a side of the anode definition layer away from the substrate to form an anode layer. The edge of the anode layer is aligned with the pixel definition body, and the shape of the anode layer is the same as that of the anode definition layer.

[0017] Embodiments of the present application provide a display panel, a method for manufacturing a display panel, and a display device. The display panel includes: a substrate; a pixel definition layer, disposed on the substrate, including at least two pixel definition bodies distributed at intervals, wherein the interval area between two adjacent pixel definition bodies is a pixel opening area, and the side of the pixel definition body close to the pixel opening area is a sloped surface; an anode definition layer, disposed on the substrate in the pixel opening area, the anode definition layer is configured in a groove shape, the edge of the anode definition layer is aligned with the pixel definition body, and the position where the anode definition layer and the pixel definition body are aligned is sloped; an anode layer, disposed on a side of the anode definition layer away from the substrate, the edge of the anode layer is aligned with the pixel definition body, and the shape of the anode layer is the same as that of the anode definition layer. The anode definition layer can be used to define the shape of the anode layer to form a groove-shaped anode layer. The side of the anode layer is sloped, which can expand the emission area of ​​the display panel, increase the emission angle of the emitted light, and improve the visual color shift of the display panel. The sloped anode layer can reflect a portion of the light, thereby realizing light reuse, improving the light emission efficiency, reducing the display power consumption of the display panel, and extending the life of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are 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.

[0019] The above and other features, advantages, and aspects of the various embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

[0020] Figure 1 A schematic diagram showing a conventional display panel discovered by the applicant;

[0021] Figure 2 A cross-sectional schematic diagram of a display panel provided in an embodiment of the present application is shown;

[0022] Figure 3 A simplified schematic diagram of a display panel provided by an embodiment of the present application is shown;

[0023] Figure 4 A cross-sectional schematic diagram of another display panel provided in an embodiment of the present application is shown;

[0024] Figure 5 A simplified schematic diagram of another display panel provided by an embodiment of the present application is shown;

[0025] Figure 6 A simplified schematic diagram of another display panel provided by an embodiment of the present application is shown;

[0026] Figure 7 A cross-sectional schematic diagram of another display panel provided in an embodiment of the present application is shown;

[0027] Figure 8 A flow chart showing a method for manufacturing a display panel provided in an embodiment of the present application is shown;

[0028] Figure 9 A schematic diagram of a display device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below with reference to the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0031] Secondly, this application is described in detail with reference to schematic diagrams. When describing the embodiments of this application, for ease of explanation, cross-sectional views of the structures may be partially enlarged and not to scale. Furthermore, these schematic diagrams are merely illustrative and should not limit the scope of protection of this application. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0032] As described in the background art, each film layer in a conventional OLED (Organic Light-Emitting Diode) display panel is a flat layer, and the pixel opening area of ​​the OLED display panel, especially the anode layer, is arranged horizontally. Figure 1 As shown, the anode layer 2 is a horizontally arranged flat layer and is covered by the pixel definition layer 1, with only the pixel opening area exposed for subsequent deposition of film materials.

[0033] Since the anode layer 2 is arranged horizontally, see Figure 1 As shown, the maximum visual range of a single pixel is small. When the user's viewing angle is further increased, the pixel light is blocked, and color cast occurs, affecting the user's visual experience.

[0034] Based on the above technical problems, embodiments of the present application provide a display panel and a display device, wherein the display panel includes: a substrate; a pixel definition layer, disposed on the substrate, including at least two pixel definition bodies distributed at intervals, wherein the interval area between two adjacent pixel definition bodies is a pixel opening area, and the side of the pixel definition body close to the pixel opening area is a sloped surface; an anode definition layer, disposed on the substrate in the pixel opening area, wherein the anode definition layer is configured in a groove shape, the edge of the anode definition layer is aligned with the pixel definition body, and the position where the anode definition layer and the pixel definition body are aligned is sloped; an anode layer, disposed on a side of the anode definition layer away from the substrate, the edge of the anode layer is aligned with the pixel definition body, and the shape of the anode layer is the same as that of the anode definition layer, so that the shape of the anode layer can be defined by the anode definition layer to form a groove-shaped anode layer, and the side of the anode layer is sloped, which can expand the emission area of ​​the display panel, increase the emission angle of the emitted light, and improve the visual color shift of the display panel. In addition, the sloped anode layer can reflect a portion of the light, thereby realizing light recycling, improving the light emission efficiency, reducing the display power consumption of the display panel, and extending the life of the display panel.

[0035] In order to better understand the technical solutions and technical effects of the present application, specific embodiments will be described in detail below with reference to the accompanying drawings.

[0036] See also Figure 2 FIG. 1 is a cross-sectional schematic diagram of a display panel provided in an embodiment of the present application, comprising:

[0037] The substrate 0 and the pixel definition layer 1 are arranged on the substrate 0 and include at least two pixel definition bodies 1 distributed at intervals. The interval area between two adjacent pixel definition bodies 1 is a pixel opening area, and the side of the pixel definition body 1 close to the pixel opening area is a slope surface.

[0038] The anode definition layer 2 is arranged on the substrate 0 in the pixel opening area. The anode definition layer 2 is arranged in a groove shape. The edge of the anode definition layer 2 is in contact with the pixel definition body 1, and the position where the anode definition layer 2 and the pixel definition body 1 are in contact is sloped; the anode layer 3 is arranged on the side of the anode definition layer 2 away from the substrate 0. The edge of the anode layer 3 is in contact with the pixel definition body 1, and the shape of the anode layer 3 is the same as that of the anode definition layer 2.

[0039] In the embodiment of the present application, the material of the substrate 0 can be glass or transparent ceramic or transparent plastic or various flexible or bendable materials, for example, polymer resins, such as polyethersulfone (PES), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyarylate, polyimide (PI), polycarbonate (PC) or cellulose acetate propionate (CAP). When the substrate 1 is a flexible material, the display panel is a flexible display panel, which is conducive to the realization of various new display forms such as folding screens and curling screens. The working scenarios of folding screens, curling screens, etc. include display in a partially bent state, for example, it is a flat panel display when fully unfolded, and split-screen and split-function display can be achieved in the bent state.

[0040] The pixel definition layer 1 can define the size of the pixel opening area of ​​the display panel through at least two pixel definition bodies 1 distributed at intervals, so that the subsequent display panel can emit light through the pixel opening area to realize the display function. In order to expand the pixel opening area and increase the maximum visual range of the display panel, the embodiment of the present application can set the side of the pixel definition body 1 close to the pixel opening area to a sloped surface.

[0041] In order to define the shape of the anode layer 3, since the anode layer 3 is mainly prepared by particle sputtering, if the anode definition layer 2 is not used in advance to define the shape of the anode layer 3, the shape of the anode layer 3 formed by sputtering may be irregular, and the anode layer 3 of the required shape cannot be accurately formed. In order to be able to accurately and quickly form the anode layer 3 on the display panel, the embodiment of the present application also provides an anode definition layer 2 for defining the shape of the anode layer 3, that is, the shapes of the anode layer 3 and the anode definition layer 2 can be set to be consistent, so that the anode definition layer 2 defines the shape of the anode layer 3.

[0042] Specifically, in order to expand the maximum visual range of the display panel, the anode definition layer 2 can be set to a groove shape. Specifically, the edge of the anode definition layer 2 is in contact with the pixel definition body 1 and is sloped. Similarly, the edge of the anode layer 3 is in contact with the pixel definition body 1 and is sloped.

[0043] For example, see Figure 2 At the position indicated by the dotted circle, since the edge of the anode layer 3 is sloped, see Figure 3 As shown in the area marked by the solid arrow, the groove-shaped anode layer 3 provided in the embodiment of the present application is used, and the maximum visual range is ∠B; see Figure 3 As shown in the area marked with a dotted line, if a conventional flat anode layer 3 is used, the maximum visual range is ∠A. As can be seen from the figure, ∠B>∠A, that is, the groove-shaped anode layer 3 with a sloped edge provided in the embodiment of the present application is used, which expands the maximum visual range of the display panel, increases the emission angle of the emitted light, and improves the color deviation of the viewing angle of the display panel.

[0044] In addition, see Figure 2 As shown, since the edge of the anode layer 3 is sloped, after the corresponding light-emitting layer is subsequently deposited on the display panel, the light emitted by the light-emitting layer can be partially reflected by the sloped anode layer 3, thereby realizing the reuse of light, improving the efficiency of light emission, reducing the display power consumption of the display panel, and extending the life of the display panel.

[0045] In one possible implementation, see Figure 2As shown, the position where the anode definition layer 2 provided in the embodiment of the present application is bonded to the pixel definition body 1 is in a flat slope, thereby facilitating the formation of the anode layer 3, allowing the anode layer 3 to be smoothly formed on the anode definition layer 2, and avoiding sputtering the anode layer 3 into an irregular shape.

[0046] Optional, see Figure 3 As shown, in order to illustrate the height of the anode definition layer 2 and the anode layer 3, and the angle between the sloped surface of the anode definition layer 2 and the anode layer 3 and the horizontal direction, Figure 3 A simplified schematic diagram of an anode definition layer 2 and an anode layer 3 is provided in an embodiment of the present application. The total height h of the anode layer 3 and the anode definition layer 2 can be set to be greater than 100 nm and less than the height of the pixel definition layer 1 to ensure that the height of the anode layer 3 and the anode definition layer 2 is not too small, thereby expanding the maximum viewing angle range of the display panel. If the total height of the anode layer 3 and the anode definition layer 2 is too small, the maximum viewing angle range of the display panel cannot be well expanded, and the color deviation of the display panel cannot be effectively improved.

[0047] Optional, see Figure 3 As shown, the angle between the position where the anode definition layer 2 and the pixel definition body 1 are attached and the horizontal direction can be used as the first angle β. The first angle β can be greater than 15° and less than 60°, so as to facilitate a smooth transition in the subsequent deposition of various film layers of the display panel. Experiments show that when the first angle β is less than 15°, the visual color deviation of the display panel will be sharply deteriorated. When the first angle β is greater than 60°, the visual color deviation of the display panel will also be sharply deteriorated. Therefore, in order to effectively improve the visual color deviation of the display panel, in the embodiment of the present application, the size of the first angle β is set to 15°<β<60°.

[0048] As for the length s of the flat bottom portion of the anode layer 3 and the anode definition layer, see Figure 5 As shown, the pixel opening area of ​​the display panel can be set as large as possible according to the size of the pixel opening area of ​​the display panel, so as to expand the maximum viewing angle range of the display panel and reduce the color deviation of the viewing angle of the display panel.

[0049] In one possible implementation, see Figure 4 As shown, it is a cross-sectional schematic diagram of a display panel provided by an embodiment of the present application. The position where the anode definition layer 2 and the pixel definition body 1 are attached is in an arc-shaped slope. Similarly, see Figure 4 As shown, for example, Figure 4 At the position indicated by the dotted circle, since the edge of the anode layer 3 is in an arc-shaped slope, see Figure 4 As shown in the area marked by the solid arrow, the groove-shaped anode layer 3 provided in the embodiment of the present application is used, and the maximum visual range is ∠B; see Figure 4As shown in the area marked with a dotted line, if a conventional flat anode layer 3 is used, the maximum visual range is ∠A. As can be seen from the figure, ∠B>∠A, that is, the groove-shaped anode layer 3 with a sloped edge provided in the embodiment of the present application is used, which expands the maximum visual range of the display panel, increases the emission angle of the emitted light, and improves the color deviation of the viewing angle of the display panel.

[0050] In addition, after the corresponding light-emitting layer is subsequently deposited on the display panel, the light emitted by the light-emitting layer can also be partially reflected by the edge of the arc-shaped sloped anode layer 3, thereby realizing the reuse of light, improving the light-emitting efficiency, reducing the display power consumption of the display panel, and extending the life of the display panel.

[0051] In one possible implementation, see Figure 4 As shown, in order to allow the anode layer 3 and subsequent display panel film layers to be smoothly deposited on the display panel and avoid sputtering the anode layer 3 into an irregular shape, the arc direction of the formed anode definition layer 2 can be bent toward the side of the substrate 0.

[0052] Optional, see Figure 5 As shown, in order to make the arc direction of the formed anode definition layer 2 be curved toward the side of the substrate 0, and to illustrate the height of the anode definition layer 2 and the anode layer 3, and the angle between the arc-shaped sloped surface of the anode definition layer 2 and the anode layer 3 and the horizontal direction, Figure 5 A simplified schematic diagram of an anode definition layer 2 and an anode layer 3 is provided in an embodiment of the present application. The total height h of the anode layer 3 and the anode definition layer 2 can be set to be greater than 100 nm and less than the height of the pixel definition layer 1 to ensure that the height of the anode layer 3 and the anode definition layer 2 is not too small, thereby expanding the maximum viewing angle range of the display panel. If the total height of the anode layer 3 and the anode definition layer 2 is too small, the maximum viewing angle range of the display panel cannot be well expanded, and the color deviation of the display panel cannot be effectively improved.

[0053] Optionally, the angle between the position where the arc-shaped parts of the anode definition layer 2 and the anode layer 3 are attached to the pixel definition body 1 and the horizontal direction can be used as the second angle β. The second angle β can be greater than 15° and less than 60°, so as to facilitate a smooth transition in the subsequent deposition of various film layers of the display panel. Experiments show that when the second angle β is less than 15°, the visual color deviation of the display panel will be sharply deteriorated. When the second angle β is greater than 60°, the visual color deviation of the display panel will also be sharply deteriorated. Therefore, in order to effectively improve the visual color deviation of the display panel, in the embodiment of the present application, the size of the second angle β is set to 15°<β<60°.

[0054] In addition, in order to realize the bending of the arc-shaped portion of the anode definition layer 2 and the anode layer 3 toward the side of the substrate 0, so as to smoothly realize the smooth transition of the anode layer 3 and the subsequent film deposition, it can be set that when 15°<β≤45°, r>h / sin 2 (β); when 45°<β<60°, r>h / sin(2β).

[0055] Wherein, r is the radius of the arc portion of the anode layer 3 and the anode definition layer 2, h is the total height of the anode layer and the anode definition layer, β is the second angle of the arc in the horizontal direction, and the second angle is greater than 15° and less than 60°.

[0056] For example, the impact of color shift can be determined by calculating the change in JNCD (Just Noticeable Color Difference), a standard for measuring screen color accuracy. The smaller the JNCD value, the more accurate the screen's color display. A JNCD value of less than 2 is generally considered a professional-grade monitor.

[0057] See also Figure 6 As shown, the initial values ​​of the anode definition layer 2 and the anode layer 3 of the display panel can be set to s = 6.5um, h = 0umβ = 25°. When the β angle is improved, the color deviation of the viewing angle under a small viewing angle can be significantly improved. For example, as shown in Table 1, when β = 41°, the JNCD decreases when the α viewing angle is between 15° and 45°; when h is improved, the color deviation of the viewing angle at a large viewing angle can be significantly improved. For example, as shown in Table 1, when h = 1.1um, the JNCD decreases when the α viewing angle is between 15° and 75°; that is, Small changes in h, such as setting h = 0.01um, can also reduce JNCD; the β angle and h can also be combined for adjustment to significantly improve the full-range viewing angle color deviation of the display panel, for example, setting β = 30° and h = 0.5um can reduce JNCD; the β angle, h and s can also be combined for adjustment to further optimize the large viewing angle color deviation of the display panel, for example, setting β = 30°, h = 0.5um, s = 10um can reduce JNCD.

[0058]

[0059] Table 1

[0060] In the examples of this application, see Figure 7 As shown, the provided display panel may further include a light-emitting layer 4, which is arranged on the side of the anode layer 3 away from the substrate 0. The edge of the light-emitting layer 4 is adhered to the pixel definition body 1, and the shape of the light-emitting layer 4 is the same as that of the anode definition layer 2, thereby realizing normal display of light by the display panel.

[0061] It should be noted that the material of the anode layer 3 described above in the embodiment of the present application may include metal or metal oxide, for example, ITO (indium tin oxide), Ag and other materials, the material of the anode definition layer 2 may include various insulating materials to achieve the definition of the shape of the anode layer 3, and the light-emitting layer may include organic light-emitting materials in various display panels.

[0062] An embodiment of the present application provides a display panel, which includes: a substrate; a pixel definition layer, which is arranged on the substrate and includes at least two pixel definition bodies distributed at intervals, wherein the interval area between two adjacent pixel definition bodies is a pixel opening area, and the side of the pixel definition body close to the pixel opening area is a sloped surface; an anode definition layer, which is arranged on the substrate in the pixel opening area, the anode definition layer is arranged in a groove shape, the edge of the anode definition layer is aligned with the pixel definition body, and the position where the anode definition layer and the pixel definition body are aligned is sloped; an anode layer, which is arranged on the side of the anode definition layer away from the substrate, the edge of the anode layer is aligned with the pixel definition body, and the shape of the anode layer is the same as that of the anode definition layer, so that the shape of the anode layer can be defined by using the anode definition layer to form an anode layer in the shape of a groove, and the side of the anode layer is sloped, which can expand the emission area of ​​the display panel, increase the emission angle of the emitted light, and improve the visual color deviation of the display panel. In addition, the sloped anode layer can reflect a portion of the light, thereby realizing the reuse of light, improving the light emission efficiency, reducing the display power consumption of the display panel, and extending the life of the display panel.

[0063] See also Figure 8 FIG. 1 is a flow chart of a method for manufacturing a display panel provided in an embodiment of the present application, comprising:

[0064] S101: providing a substrate;

[0065] S102: preparing a pixel definition layer on the substrate, wherein the pixel definition layer comprises at least two pixel definition bodies spaced apart from each other, wherein a space between two adjacent pixel definition bodies is a pixel opening area, and a side of the pixel definition body close to the pixel opening area is a sloped surface;

[0066] S103: preparing an anode initial layer on the substrate in the pixel opening area, the edge of the anode initial layer being aligned with the pixel definition body, etching the anode initial layer to form a groove-shaped anode definition layer, and the position where the anode definition layer is aligned with the pixel definition body is sloped;

[0067] S104: sputtering an anode material on a side of the anode definition layer away from the substrate to form an anode layer, wherein an edge of the anode layer is aligned with the pixel definition body, and the shape of the anode layer is the same as that of the anode definition layer.

[0068] An embodiment of the present application provides a method for manufacturing a display panel. The display panel manufactured using this manufacturing method includes: a substrate; a pixel definition layer, which is arranged on the substrate and includes at least two pixel definition bodies distributed at intervals, wherein the interval area between the two adjacent pixel definition bodies is a pixel opening area, and the side of the pixel definition body close to the pixel opening area is a sloped surface; an anode definition layer, which is arranged on the substrate in the pixel opening area, and is configured to be groove-shaped. The edge of the anode definition layer is aligned with the pixel definition body, and the position where the anode definition layer and the pixel definition body are aligned is sloped; an anode layer, which is arranged on the side of the anode definition layer away from the substrate, and the edge of the anode layer is aligned with the pixel definition body. The shape of the anode layer is the same as that of the anode definition layer, so that the shape of the anode layer can be defined by the anode definition layer to form a groove-shaped anode layer, and the side of the anode layer is sloped, which can expand the emission area of ​​the display panel, increase the emission angle of the emitted light, and improve the visual color shift of the display panel. The sloped anode layer can reflect a portion of the light, thereby realizing light recycling, improving the light emission efficiency, reducing the display power consumption of the display panel, and extending the life of the display panel.

[0069] See also Figure 9 As shown, it is a schematic diagram of the planar structure of a display device provided in an embodiment of the present application. As can be seen from the figure, the display device 99 includes a display panel 100, and the display panel 100 is the display panel 100 described in any of the above embodiments. The display device 99 provided in the embodiment of the present application can be a mobile phone, a tablet, a computer, a television, a car display device, an instrument display device, or other display devices with display functions, and the embodiment of the present application does not make specific limitations. The display device 99 provided in the embodiment of the present application has the beneficial effects of the display panel 100 provided in the embodiment of the present application. For details, please refer to the specific description of the display panel in the above embodiment, and the embodiment of the present application will not be repeated here.

[0070] An embodiment of the present application discloses a display device, which includes a display panel: a substrate; a pixel definition layer, which is arranged on the substrate and includes at least two pixel definition bodies distributed at intervals, wherein the interval area between the two adjacent pixel definition bodies is a pixel opening area, and the side of the pixel definition body close to the pixel opening area is a sloped surface; an anode definition layer, which is arranged on the substrate in the pixel opening area, and is configured to be groove-shaped, with the edge of the anode definition layer aligned with the pixel definition body, and the position where the anode definition layer and the pixel definition body are aligned is sloped; an anode layer, which is arranged on the side of the anode definition layer away from the substrate, with the edge of the anode layer aligned with the pixel definition body, and the shape of the anode layer is the same as that of the anode definition layer, so that the shape of the anode layer can be defined by the anode definition layer to form a groove-shaped anode layer, and the side of the anode layer is sloped, which can expand the emission area of ​​the display panel, increase the emission angle of the emitted light, and improve the visual color shift of the display panel. In addition, the sloped anode layer can reflect a portion of the light, thereby realizing the reuse of light, improving the light emission efficiency, reducing the display power consumption of the display panel, and extending the life of the display panel.

[0071] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences from the other embodiments. In particular, the method and display device embodiments are generally similar to the display panel embodiments, so their descriptions are relatively simple. For relevant parts, refer to the description of the method embodiment.

[0072] The above is only a preferred embodiment of the present application. Although the present application has been disclosed as a preferred embodiment, it is not intended to limit the present application. Any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present application without departing from the scope of the technical solution of the present application, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of protection of the technical solution of the present application.

Claims

1. A display panel, characterized in that: include: substrate; A pixel definition layer is provided on the substrate and includes at least two pixel definition bodies spaced apart from each other, wherein the space between two adjacent pixel definition bodies is a pixel opening area, and a side of the pixel definition body close to the pixel opening area is a sloped surface; an anode definition layer, disposed on the substrate in the pixel opening area, wherein the anode definition layer is configured in a groove shape, an edge of the anode definition layer is aligned with the pixel definition body, and a position where the anode definition layer and the pixel definition body are aligned is sloped; an anode layer, disposed on a side of the anode definition layer away from the substrate, wherein an edge of the anode layer is in contact with the pixel definition body, and the shape of the anode layer is the same as that of the anode definition layer; The anode definition layer is used to define the shape of the anode layer; The position where the anode definition layer and the pixel definition body are attached is sloped, including: The position where the anode definition layer and the pixel definition body are attached is in a flat slope shape; The total height of the anode layer and the anode definition layer is greater than 100 nm and less than the height of the pixel definition layer; The angle between the position where the anode definition layer and the pixel definition body are attached and the horizontal direction is a first angle, and the first angle is greater than 15° and less than 60°.

2. The display panel according to claim 1, wherein: The position where the anode definition layer and the pixel definition body are attached is sloped, including: The position where the anode definition layer and the pixel definition body are attached is in an arc-shaped slope.

3. The display panel according to claim 2, wherein: The total height of the anode layer and the anode definition layer is greater than 100 nm and less than the height of the pixel definition layer; When 15°<β≤45°, r>h / sin 2 (β); When 45°<β<60°, r>h / sin(2β); Wherein, r is the radius of the arc, h is the total height of the anode layer and the anode definition layer, β is a second angle between the arc and the horizontal direction, and the second angle is greater than 15° and less than 60°.

4. The display panel according to claim 1 or 3, wherein: Also includes: The light-emitting layer is arranged on a side of the anode layer away from the substrate. The edge of the light-emitting layer is in contact with the pixel definition body, and the shape of the light-emitting layer is the same as that of the anode definition layer.

5. The display panel according to claim 1, wherein: The material of the anode layer includes metal or metal oxide.

6. The display panel according to claim 1, wherein: The material of the anode definition layer includes an insulating material.

7. A method for manufacturing a display panel, characterized in that: include: providing a substrate; A pixel definition layer is prepared on the substrate, wherein the pixel definition layer includes at least two pixel definition bodies spaced apart from each other, the space between two adjacent pixel definition bodies is a pixel opening area, and the side of the pixel definition body close to the pixel opening area is a sloped surface; An anode initialization layer is formed on the substrate in the pixel opening area, wherein the edge of the anode initialization layer is aligned with the pixel definition body, and the anode initialization layer is etched to form a groove-shaped anode definition layer, wherein the position where the anode definition layer is aligned with the pixel definition body is sloped; sputtering an anode material on a side of the anode definition layer away from the substrate to form an anode layer, wherein an edge of the anode layer is aligned with the pixel definition body, and the shape of the anode layer is the same as that of the anode definition layer; The anode definition layer is used to define the shape of the anode layer; The position where the anode definition layer and the pixel definition body are attached is sloped, including: The position where the anode definition layer and the pixel definition body are attached is in a flat slope shape; The total height of the anode layer and the anode definition layer is greater than 100 nm and less than the height of the pixel definition layer; The angle between the position where the anode definition layer and the pixel definition body are attached and the horizontal direction is a first angle, and the first angle is greater than 15° and less than 60°.

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

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