Display panel and display device

Abstract

The application relates to a display panel and a display device. The display panel comprises an array substrate and a light-emitting layer. The light-emitting layer is located on one side of the array substrate. The light-emitting layer comprises a pixel definition layer and a plurality of pixel units. The pixel definition layer comprises a plurality of openings and a side wall arranged around the openings, the side wall is provided with a plurality of avoiding portions distributed radially along the opening, and the pixel units are located in the openings. The width dimension of the projection of the plurality of avoiding portions in the thickness direction of the display panel decreases along a first direction, and the plurality of avoiding portions are gradiently distributed along the thickness direction. The first direction is the direction from the center of the opening to the side wall. The application can improve the color deviation phenomenon of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] With the development of display technology, organic light-emitting diode (OLED) display panels are increasingly widely used in the display field due to their advantages such as low power consumption, light weight, wide viewing angle and fast response speed.

[0003] Currently, OLED display panels typically use multiple pixel units to emit light. However, the light emitted by the pixel units is reflected by the surrounding film layer, causing color shift in the overall display effect of the display panel. Summary of the Invention

[0004] The display panel and display device provided in this application embodiment can effectively improve the color shift phenomenon of the display panel.

[0005] On one hand, an embodiment of this application proposes a display panel, including: an array substrate; a light-emitting layer located on one side of the array substrate; the light-emitting layer including a pixel definition layer and a plurality of pixel units; the pixel definition layer including a plurality of openings and a sidewall surrounding the openings; the sidewall having a plurality of clearance portions radially distributed along the openings; and the pixel units located within the openings. The width of the plurality of clearance portions projected onto the thickness direction of the display panel decreases along a first direction, and the plurality of clearance portions are gradient-distributed along the thickness direction; the first direction is from the center of the opening to the sidewall.

[0006] On the other hand, embodiments of this application also provide a display device, including the display panel as described above.

[0007] According to the display panel and display device provided in this application, the display panel includes an array substrate and a light-emitting layer. The light-emitting layer includes a pixel definition layer and pixel units. The pixel definition layer includes an opening and a sidewall surrounding the opening. The sidewall is provided with a plurality of avoidance portions distributed radially along the opening, and the plurality of avoidance portions are gradient distributed along the thickness direction. This can reduce the possibility that light emanating from the pixel units to the periphery of the opening will hit the sidewall and be reflected. The width of the orthographic projection of the plurality of avoidance portions in the thickness direction of the display panel decreases from the center of the opening to the sidewall. This makes the tilt angle of the sidewall gentler the further away from the pixel unit, further reducing the possibility that light emanating from the pixel units to the periphery of the opening will hit the sidewall and be reflected, reducing the possibility of abnormal image effects of the display panel, thereby improving the color shift phenomenon of the display panel. Attached Figure Description

[0008] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0009] Figure 1 A cross-sectional structural diagram of a display panel provided for some embodiments of this application;

[0010] Figure 2 for Figure 1 A schematic diagram of an enlarged structure of P;

[0011] Figure 3 A schematic diagram of an opening in a display panel provided for some embodiments of this application;

[0012] Figure 4 for Figure 1 A schematic diagram of another enlarged structure of P;

[0013] Figure 5 This is a schematic diagram of another structure of an opening in a display panel provided in some embodiments of this application;

[0014] Figure 6 This is a schematic diagram of another structure of an opening in a display panel provided in some embodiments of this application;

[0015] Figure 7 This is a schematic diagram of another structure of an opening in a display panel provided in some embodiments of this application;

[0016] Figure 8 This is a schematic diagram of another structure of an opening in a display panel provided in some embodiments of this application;

[0017] Figure 9 for Figure 2 A schematic diagram of an enlarged structure of Q;

[0018] Figure 10 for Figure 2 Another enlarged structural diagram of Q.

[0019] Marker explanation:

[0020] 1. Array substrate; 2. Light-emitting layer; S1. First plane;

[0021] 10. Pixel definition layer; 11. Opening; 12. Sidewall; 121. Connecting surface; 13. Clearance area; 131. First surface; 132. Groove; 133. First recess; 134. Side surface; 134a. First edge; 134b. Second edge; 1341. Diffuse reflection area;

[0022] 20. Pixel unit;

[0023] X, first direction; Y, second direction; Z, third direction.

[0024] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0025] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application and not to limit it. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating examples.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0027] Currently, display panels typically use red (R), green (G), and blue (B) pixel units to form three primary colors for image display. A 1:1:1 ratio of these three primary colors results in the best image display effect. Taking OLED display panels as an example, because the transmittance of blue pixel units is higher than that of red and green pixel units, the aperture sizes of the three primary colors must be different to achieve a 1:1:1 ratio.

[0028] However, the sidewalls of the openings formed by the pixel definition layer reflect the light emitted by the pixel units. The reflected light enhances the brightness of the light emitted from the openings, causing an imbalance in the ratio of the three primary colors. This results in abnormal color display in some or all areas of the display panel, a phenomenon known as color shift.

[0029] Therefore, in order to solve the above problems, this application provides a display panel and a display device.

[0030] To better understand this application, on the one hand, the following will combine... Figures 1 to 10 The display panel and display device according to embodiments of this application will be described in detail.

[0031] Figure 1 This is a cross-sectional structural diagram of a display panel provided for some embodiments of this application. Figure 2 for Figure 1 A schematic diagram of an enlarged structure of P. Figure 3 This is a schematic diagram of an opening in a display panel provided for some embodiments of this application.

[0032] like Figures 1 to 3 As shown, this application embodiment provides a display panel. The display panel includes an array substrate 1 and a light-emitting layer 2. The light-emitting layer 2 is located on one side of the array substrate 1. The light-emitting layer 2 includes a pixel definition layer 10 and a plurality of pixel units 20. The pixel definition layer 10 includes a plurality of openings 11 and a sidewall 12 surrounding the openings 11. The sidewall 12 is provided with a plurality of clearance portions 13 radially distributed along the openings 11, and the pixel units 20 are located within the openings 11. The width of the plurality of clearance portions 13 projected onto the thickness direction of the display panel decreases along a first direction X, and the plurality of clearance portions 13 are gradient-distributed along the thickness direction. The first direction X is the direction from the center of the opening 11 to the sidewall 12.

[0033] This application embodiment uses an OLED (Organic Light-Emitting Diode) display panel as an example. The display panel includes an array substrate 1 and a light-emitting layer 2. The array substrate 1 includes a substrate and an array layer. The light-emitting layer 2 is located on the side of the array layer facing away from the substrate, and the light-emitting layer 2 includes a pixel definition layer 10 and a plurality of pixel units 20. Optionally, the light-emitting layer 2 also includes an anode, and the pixel units 20 are electrically connected to the array layer on the array substrate 1 through the anode.

[0034] Optionally, the pixel definition layer 10 may include a barrier structure that encloses a plurality of openings 11. The barrier structure may be made of a black light-absorbing material, or a combination of a black pigment or dye and other materials. In some embodiments, the materials used to make the barrier structure are, for example, titanium black, lignin black, composite oxide pigments such as iron or manganese, and combinations thereof. By providing the barrier structure, crosstalk between different colors of light passing through adjacent openings 11 can be avoided. It is understood that the sidewalls 12 that enclose the openings 11 are also the sidewalls 12 of the barrier structure.

[0035] Optionally, the pixel unit 20 includes an organic light-emitting material layer. Exemplarily, the organic light-emitting material layer includes one or more of an electron injection layer (EIL), an electron transport layer (ETL), a hole blocking layer (HBL), an electron blocking layer (EBL), a hole transport layer (HTL), and a hole injection layer (HIL).

[0036] Optionally, the sidewall 12 is provided with a plurality of clearance portions 13 radially distributed along the opening 11. The clearance portions 13 can be concave structures formed by recesses along the thickness direction of the display panel. Optionally, each opening 11 can be formed by a plurality of sidewalls 12. In the following embodiments of this application, each opening 11 is formed by four sidewalls 12 as an example, and each sidewall 12 is provided with a plurality of clearance portions 13. Exemplarily, the number of clearance portions 13 provided on each sidewall 12 includes two, three, four or more. The embodiments of this application do not limit the number of clearance portions 13 on each sidewall 12, as long as the plurality of clearance portions 13 are gradient distributed. Optionally, the spacing between the plurality of clearance portions 13 on each sidewall 12 can be the same. Or the spacing between the plurality of clearance portions 13 on each sidewall 12 can be different.

[0037] It is understandable that the width of the orthographic projection of the plurality of clearance portions 13 in the thickness direction of the display panel decreases along the first direction X. Specifically, the shape of the orthographic projection of the plurality of clearance portions 13 on each sidewall 12 in the thickness direction of the display panel includes rectangles, and the width of the rectangular projection is the width of the orthographic projection of the clearance portion 13 in the thickness direction of the display panel. The first direction X is the direction from the center of the opening 11 to the sidewall 12. That is to say, the further away the clearance portion 13 is from the center of the opening 11 on the same sidewall 12, the smaller the width of the orthographic projection of the clearance portion 13 in the thickness direction of the display panel.

[0038] In this embodiment, the plurality of clearance portions 13 are distributed in a gradient along the thickness direction. Specifically, the plurality of clearance portions 13 on the same sidewall 12 may have a stepped structure; or, the plurality of clearance portions 13 on the same sidewall 12 may be recessed into the sidewall 12 to form a plurality of concave structures, and the plurality of concave structures are distributed in a gradient; or the plurality of sidewalls 12 on the same sidewall 12 may be divided into two parts, one part being a stepped structure and the other part being a concave structure, and the two parts may be distributed sequentially or alternately. It can be understood that the gradient distribution means that there is a height difference between two adjacent clearance portions 13 on the same sidewall 12.

[0039] According to the display panel and display device provided in this application, the display panel includes an array substrate 1 and a light-emitting layer 2. The light-emitting layer 2 includes a pixel definition layer 10 and pixel units 20. The pixel definition layer 10 includes an opening 11 and a sidewall 12 surrounding the opening 11. The sidewall 12 is provided with a plurality of clearance portions 13 radially distributed along the opening 11, and the plurality of clearance portions 13 are gradient distributed along the thickness direction. This can reduce the possibility that light emanating from the pixel unit 20 to the periphery of the opening 11 will irradiate the sidewall 12 and be reflected. The width of the orthographic projection of the plurality of clearance portions 13 in the thickness direction of the display panel decreases from the center of the opening 11 to the sidewall 12. This makes the tilt angle of the sidewall 12 gentler the further away from the pixel unit 20 it is, further reducing the possibility that light emanating from the pixel unit 20 to the periphery of the opening 11 will irradiate the sidewall 12 and be reflected, reducing the possibility of abnormal image effects on the display panel, thereby improving the color shift phenomenon of the display panel.

[0040] like Figure 2 As shown, in some alternative embodiments, at least a portion of the clearance portion 13 on the sidewall 12 has a stepped structure.

[0041] It should be noted that the stepped structure includes a stepped surface and a thickness difference surface, with the thickness difference surface located between two adjacent stepped surfaces. In this embodiment, a plurality of clearance portions 13 on the sidewall 12 form the stepped surface of the stepped structure, and the sidewall 12 between two adjacent clearance portions 13 forms a thickness difference surface. Furthermore, among two adjacent clearance portions 13, the clearance portion 13 closer to the center of the opening 11 is located on the side of the clearance portion 13 away from the center of the opening 11 facing the array substrate 1.

[0042] Alternatively, the thickness difference between the multiple clearance portions 13 can be the same.

[0043] Optionally, the sidewall 12 includes a plurality of connecting surfaces 121, which are disposed between two adjacent clearance portions 13. The plurality of connecting surfaces 121 have a preset angle with the first direction X. Optionally, the plurality of connecting surfaces 121 are arranged perpendicular to the first direction X, that is, the plurality of connecting surfaces 121 are arranged parallel to the thickness direction of the display panel; or, the minimum angle between the plurality of connecting surfaces 121 and the first direction X is an acute angle.

[0044] The above-described arrangement in this embodiment makes the arrangement of the avoidance portion 13 on the side wall 12 more regular, which is beneficial for analyzing the effect of the avoidance portion 13 on color deviation.

[0045] like Figure 2 As shown, in some optional embodiments, the avoidance part 13 includes a first surface 131, which is arranged parallel to the display surface of the display panel, and multiple first surfaces 131 located on the same sidewall 12 form a stepped surface.

[0046] In this embodiment of the application, the avoidance part 13 includes a first surface 131, which is arranged parallel to the display surface of the display panel. Specifically, the edge of the first surface 131 near the center of the opening 11 is connected to the side wall 12, so that the avoidance part 13 can occupy most of the area of ​​the side wall 12, thereby reducing the light irradiated from the pixel unit 20 onto the side wall 12, and further reducing the light reflected from the side wall 12 to the outside, thus improving the color shift problem of the display panel.

[0047] Figure 4 for Figure 1 Another enlarged structural diagram of P.

[0048] like Figure 4 As shown, in some optional embodiments, each avoidance portion 13 includes a groove 132, which is recessed along the thickness direction of the display panel, and the bottom of the groove 132 and the edge of the sidewall 12 near the center of the opening 11 have a predetermined distance along the thickness direction of the display panel.

[0049] In some embodiments, the bottom of the groove 132 and the edge of its sidewall 12 near the center of the opening 11 have a predetermined distance along the thickness direction of the display panel. Specifically, the groove 132 can be fabricated using a mask process. For example, photoresist is coated on the sidewall 12 of the opening 11, and then a mask is used to block the photoresist layer. Light is used to irradiate the photoresist layer, which forms a specific opening 11 under the irradiation of the light, allowing part of the sidewall 12 to be exposed through the specific opening 11. The sidewall 12 is then etched through the specific opening 11, finally forming the groove 132. It is understood that there is a thickness difference between the bottoms of two adjacent grooves 132. In other words, the bottom of the groove 132 near the center of the opening 11 is located on the side of the bottom of the groove 132 away from the center of the opening 11 facing the array substrate 1.

[0050] The present application embodiment, through the above-described configuration, can reduce the manufacturing process of the avoidance portion 13. Furthermore, light irradiated by the pixel unit 20 onto the surface of the groove 132 away from the center of the opening 11 can be reflected back into the groove 132, thereby reducing the amount of light reflected from the sidewall 12 to the outside.

[0051] Figure 5 This is a schematic diagram of another structure of an opening in a display panel provided in some embodiments of this application.

[0052] Please continue reading. Figure 5 In some alternative embodiments, the clearance portion 13 includes a first recess 133 and a sidewall 12 opposite to each other along the first direction X. The first recess 133 is symmetrically distributed with respect to a first plane S1, which passes through the center of the opening 11 and is parallel to the first direction X.

[0053] Optionally, the clearance portion 13 located on the same sidewall 12 may include a first recess 133, a second recess, and a third recess. This application embodiment does not limit the number of clearance portions 13 on the same sidewall 12.

[0054] Optionally, different sidewalls 12 within the same opening 11 may each include a first recess 133. Specifically, the first recesses 133 on two opposite sidewalls 12 along the first direction X are symmetrically distributed along the first plane S1. Further, different sidewalls 12 within the same opening 11 may each include a second recess and a third recess. Specifically, the second and third recesses on two opposite sidewalls 12 along the first direction X are symmetrically distributed along the first plane S1. It is understood that the first recesses 133, the second recess, and the third recess on the same sidewall 12 are spaced apart.

[0055] Optionally, taking the same opening 11 as an example formed by four side walls 12, the clearance portions 13 on the two opposite side walls 12 can be symmetrically arranged.

[0056] The above-described configuration in this application embodiment facilitates the analysis of the color shift improvement effect of the avoidance part 13, reducing the amount of light irradiated from the pixel unit 20 to the side wall 12, while also reducing the differences in the same pixel unit 20 when viewed from different angles.

[0057] Please continue reading. Figure 5 In some alternative embodiments, the distance from the first recess 133 on any two sidewalls 12 to the pixel unit 20 is the same.

[0058] Optionally, each of the multiple sidewalls 12 in the same opening 11 includes a first recess 133, and the distance between each first recess 133 and the pixel unit 20 is set to be the same. For example, the first recesses 133 on two opposite sidewalls 12 are at the same distance from the pixel unit 20. Of course, the first recesses 133 on two adjacent sidewalls 12 are at the same distance from the pixel unit 20.

[0059] The embodiments of this application improve the uniformity of the range of light emitted from the pixel unit 20 in the same opening 11 by the above settings, reduce the reflection of light from different sidewalls 12 in the same opening 11, and further reduce the difference when the same opening 11 is viewed from different angles.

[0060] Figure 6 This is a schematic diagram of another structure of an opening in a display panel provided in some embodiments of this application. Figure 7 This is a schematic diagram of another structure of an opening in a display panel provided in some embodiments of this application.

[0061] like Figure 6 and Figure 7As shown, in some optional embodiments, at least some of the first recesses 133 on two adjacent sidewalls 12 are overlapped along the projection portion of the display panel thickness direction. Specifically, the first recesses 133 on two adjacent sidewalls 12 can be connected along their own direction.

[0062] Optionally, the projection shape of the first recess 133 on two adjacent sidewalls 12 along the thickness direction of the display panel includes an L-shape. Optionally, the projection shape of the first recess 133 in the same opening 11 along the thickness direction of the display panel includes one of a continuously closed ring, a rectangle, or a square.

[0063] Optionally, such as Figure 6 As shown, the projection shapes of the second and third recesses on two adjacent sidewalls 12 along the thickness direction of the display panel can both be L-shaped. Optionally, as... Figure 7 As shown, the projection shapes of the second and third recesses in the same opening 11 along the thickness direction of the display panel include one of a continuously closed ring, a rectangle, or a square.

[0064] By implementing the above-described configuration, the manufacturing process of the avoidance section 13 can be simplified, further reducing the amount of light irradiated from the pixel unit 20 onto the sidewall 12 and improving the reliability of the avoidance section 13.

[0065] Please continue reading. Figure 3 In some alternative embodiments, the projection of the first recess 133 on two adjacent sidewalls 12 along the thickness direction of the display panel has a gap between its edges along its own extension direction.

[0066] In this embodiment, continuing with the example of an opening 11 being formed by four sidewalls 12, the four sidewalls 12 are a first sidewall 12, a second sidewall 12, a third sidewall 12, and a fourth sidewall 12. Optionally, the first sidewall 12 is arranged adjacent to the second and third sidewalls 12, and the first sidewall 12 is arranged opposite to the fourth sidewall 12. The side of the first recess 133 on the first sidewall 12 closest to the second sidewall 12 is spaced apart from the side of the first recess 133 on the second sidewall 12 closest to the first sidewall 12. Similarly, the side of the first recess 133 on the first sidewall 12 closest to the third sidewall 12 is spaced apart from the side of the first recess 133 on the third sidewall 12 closest to the first sidewall 12.

[0067] In this embodiment of the application, the extension length of the first recess 133 on two adjacent sidewalls 12 can be different, and the extension length of the first recess 133 can be arranged according to design requirements.

[0068] Please continue reading. Figure 4As shown, in some optional embodiments, the angle between the sidewall 12 and the first direction X ranges from 15° to 30°.

[0069] It should be noted that the minimum angle between the sidewall 12 within the same opening 11 and the first direction X is α, and the angle range is 15° to 30°. If the angle between the sidewall 12 and the first direction X is too large, the range of light emitted by the pixel unit 20 will be too small, affecting the display of the image on the display panel; if the angle between the sidewall 12 and the first direction X is too small, it will increase the manufacturing difficulty of the sidewall 12. In this embodiment, the angle between the sidewall 12 and the first direction X is limited to 15° to 30° to balance image display and manufacturing difficulty.

[0070] Figure 8 This is a schematic diagram of another structure of an opening in a display panel provided in some embodiments of this application.

[0071] like Figure 8 As shown, in some optional embodiments, the width of the clearance portion 13 is L, where L =

[0072] 2-(4*v) / D. Where v is the minimum distance from the avoidance part 13 to the pixel unit 20; D is the minimum distance between two adjacent pixel units 20.

[0073] Understandably, the width of the avoidance portion 13 is inversely proportional to the minimum distance from the pixel unit 20, and directly proportional to the minimum distance between two adjacent pixel units 20. In other words, multiple avoidance portions 13 divide the same sidewall 12 into multiple regions. The farther the avoidance portion 13 within the same opening 11 is from the minimum distance of the pixel unit 20 within the opening 11, the smaller its width, resulting in a larger area of ​​the opening 11 formed by the region of the sidewall 12 further away from the center of the opening 11. Furthermore, the width of the avoidance portion 13 is also affected by the minimum distance between two adjacent pixel units 20; the greater the minimum distance between two adjacent pixel units 20, the larger the width of the avoidance portion 13.

[0074] It should be noted that the angle between the sidewall 12 and the first direction X is an acute angle, which makes the area of ​​the opening 11 larger the further away from the center of the opening 11. The more avoidance parts 13 there are on the sidewall 12, the larger the area of ​​the opening 11 will be, thus reducing the possibility that the light emitted by the pixel unit 20 will hit the area of ​​the sidewall 12 that is far away from the center of the opening 11.

[0075] In some alternative embodiments, at least some of the plurality of clearance portions 13 located on the same sidewall 12 have the same size along the second direction Y, and the first direction X, the second direction Y and the display panel thickness direction intersect each other.

[0076] Optionally, the second direction Y can be the extension direction of the avoidance part 13. Taking the projection shape of the avoidance part 13 in the thickness direction of the display panel as a rectangle as an example, the second direction Y is the length direction of the avoidance part 13.

[0077] Optionally, some of the clearance portions 13 on the same sidewall 12 have the same dimension along the second direction Y. Of course, all the clearance portions 13 on the same sidewall 12 have the same dimension along the second direction Y. Alternatively, the clearance portions 13 on the same sidewall 12 may include two parts, one part of which has the same dimension, and the other part of which has a different dimension.

[0078] Through the above-described configuration, the avoidance portion 13 on the same sidewall 12 can be flexibly designed to extend its length according to design requirements, so as to adapt to display panels of different shapes.

[0079] Please continue reading. Figure 8 In some optional embodiments, the dimension of the avoidance portion 13 along the second direction Y is W, where W = N(1 + v / D). Where v is the minimum distance from the avoidance portion 13 to the pixel unit 20; D is the minimum distance between two adjacent pixel units 20; N is the dimension of the pixel unit 20 along the second direction Y; the first direction X, the second direction Y, and the thickness direction of the display panel intersect each other.

[0080] It is understandable that the size of the clearance portion 13 along the second direction Y is directly proportional to the minimum distance from the pixel unit 20, and inversely proportional to the minimum distance between two adjacent pixel units 20. In other words, the farther the clearance portion 13 within the same opening 11 is from the minimum distance of the pixel unit 20 within the opening 11, the larger the size of the clearance portion 13 along the second direction Y, resulting in a larger area occupied by the clearance portion 13 on the sidewall 12. The size of the clearance portion 13 along the second direction Y is also affected by the minimum distance between two adjacent pixel units 20 and the size of the pixel unit 20 itself along the second direction Y. The larger the minimum distance between two adjacent pixel units 20, the smaller the size of the clearance portion 13 along the second direction Y; the larger the size of the pixel unit 20 itself along the second direction Y, the smaller the size of the clearance portion 13 along the second direction Y.

[0081] In some alternative embodiments, the clearance portion 13 includes a side surface 134 disposed toward the opening 11, and the light-emitting layer 2 further includes a light-absorbing layer disposed on the side surface 134.

[0082] Optionally, the side 134 and the side wall 12 of the opening 11 can be at the same tilt angle. Alternatively, the side 134 can be arranged parallel to the thickness direction of the display panel.

[0083] Optionally, the material of the light-absorbing layer includes a light-absorbing material.

[0084] The embodiments of this application reduce the light reflected after the pixel unit 20 is irradiated by the side wall 12 through the above settings, improve the reliability of the avoidance part 13, and improve the color shift phenomenon of the display panel.

[0085] Figure 9 for Figure 2 A schematic diagram of an enlarged structure of Q.

[0086] like Figure 9 As shown, in some alternative embodiments, the sidewall 12 further includes a diffuse reflection portion 1341, which is located at least on the side 134.

[0087] Optionally, the diffuse reflection portion 1341 may include a plurality of concave and convex structures, which may be distributed on the side surface 134 of the clearance portion 13. Of course, the plurality of concave and convex structures may also be distributed on the side wall 12.

[0088] The embodiments of this application reduce the light reflected after the pixel unit 20 is irradiated by the side wall 12 through the above settings, improve the reliability of the avoidance part 13, and improve the color shift phenomenon of the display panel.

[0089] Figure 10 for Figure 2 Another enlarged structural diagram of Q.

[0090] like Figure 10 As shown, in some alternative embodiments, the side 134 tends to move away from the center of the opening 11 due to the direction opposite to the light emission direction of the display panel.

[0091] Optionally, the direction opposite to the light emission direction of the display panel is the third direction Z, and the side surface 134 tends to move away from the center of the opening 11 along the third direction Z. Specifically, the side surface 134 includes a first edge 134a and a second edge 134b along the thickness direction of the display panel. The first edge 134a is the side of the side surface 134 away from the array substrate 1, and the second edge 134b is the side of the side surface 134 closer to the array substrate 1. The projection of the side surface 134 in the thickness direction of the display panel shows that the first edge 134a is located on the side of the second edge 134b closer to the center of the opening 11.

[0092] In this embodiment, the light irradiated by the pixel unit 20 onto the side 134 is reflected and can irradiate into the opening 11, thereby reducing the possibility that the light irradiated by the pixel unit 20 onto the side 134 will be reflected out of the opening 11 and improving the reliability of the avoidance part 13.

[0093] On the other hand, embodiments of this application also provide a display device, including any of the display panels described above.

[0094] Since the display device provided in this application includes the display panel of any of the above embodiments, the display device provided in this application has the beneficial effects of the display panel of any of the above embodiments, which will not be repeated here.

[0095] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized by, The display panel comprises: an array substrate; a light-emitting layer located on one side of the array substrate, the light-emitting layer comprising a pixel definition layer and a plurality of pixel units, the pixel definition layer comprising a plurality of openings and a sidewall enclosing the openings, the sidewall being provided with a plurality of avoiding portions radially distributed along the openings, and the pixel units being located in the openings; wherein the width dimension of the projection of the plurality of avoiding portions in the thickness direction of the display panel decreases along a first direction, and the plurality of avoiding portions are gradient-distributed along the thickness direction, the first direction being a direction from the center of the opening to the sidewall, the avoiding portion comprising a side surface, the side surface being arranged towards the opening, and the side surface having a trend of moving away from the center of the opening from a direction opposite to the light-emitting direction of the display panel.

2. The display panel of claim 1, wherein, At least part of the avoiding portions on the sidewall are in a stepped structure.

3. The display panel of claim 2, wherein, The avoiding portion comprises a first surface, the first surface being arranged parallel to the display surface of the display panel, and a plurality of first surfaces on the same sidewall form a stepped surface.

4. The display panel of claim 1, wherein, Each avoiding portion comprises a groove, the groove being recessed along the thickness direction of the display panel, and the bottom of the groove and the edge of the sidewall near the center of the opening have a preset interval along the thickness direction of the display panel.

5. The display panel of claim 1, wherein, The avoiding portion comprises a first recess, the first recess being symmetrically distributed along the first direction with respect to the sidewall, the first plane passing through the center of the opening and being parallel to the first direction.

6. The display panel of claim 5, wherein, The distance from the first recess to the pixel unit on any two sidewalls is the same.

7. The display panel of claim 5, wherein, The projection of the first recess on the thickness direction of the display panel on at least part of two adjacent sidewalls is arranged in an overlapping manner.

8. The display panel of claim 5, wherein, The projection of the first recess on the thickness direction of the display panel on two adjacent sidewalls has a gap between the edges along the extension direction thereof.

9. The display panel of claim 1, wherein, The width dimension of the avoiding portion is L, L=2-(4*v) / D; wherein v is the minimum distance from the avoiding portion to the pixel unit, and D is the minimum distance between two adjacent pixel units.

10. The display panel of claim 1, wherein, At least part of a plurality of avoiding portions on the same sidewall have the same size along a second direction, and the first direction, the second direction and the thickness direction of the display panel are mutually intersected.

11. The display panel of claim 1, wherein, The size of the avoiding portion along the second direction is W, W=N(1+v / D); wherein v is the minimum distance from the avoiding portion to the pixel unit, D is the minimum distance between two adjacent pixel units, N is the size of the pixel unit along the second direction, and the first direction, the second direction and the thickness direction of the display panel are mutually intersected.

12. The display panel of claim 1, wherein, The included angle between the sidewall and the first direction ranges from 15° to 30°.

13. The display panel of claim 1, wherein, The light-emitting layer further comprises a light-absorbing layer arranged on the side surface.

14. The display panel of claim 13, wherein, The sidewall further comprises a diffuse reflection portion, the diffuse reflection portion being located at least on the side surface.

15. A display device comprising: The display panel comprises any one of the display panels according to claims 1-14.

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