Display panel and display device

Abstract

The present application relates to a display panel and a display device. A second lateral redundant pixel region is located on at least one side of a display region in a first direction. The first lateral redundant pixel region is located between the second lateral redundant pixel region and the display region. A corner redundant pixel region is located at a corner of a non-display region and is adjacent to the second lateral redundant pixel region. Display pixels are located in the display region. First lateral redundant pixels are located in the first lateral redundant pixel region. The area of ​​at least one first lateral redundant pixel is the same as the area of ​​at least one display pixel. Second lateral redundant pixels are located in the second lateral redundant pixel region. The dimension of the second lateral redundant pixel along a second direction is greater than the dimensions of the display pixel and the first lateral redundant pixel along the second direction. The second direction intersects the first direction. Corner redundant pixels are located in the corner redundant pixel region. The thickness of the corner redundant pixels is greater than or equal to the thickness of the second lateral redundant pixels and the thickness of the first lateral redundant pixels.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display technology has become a research hotspot in the field of optoelectronic display technology due to its advantages such as self-luminescence, wide viewing angle, high contrast, low power consumption, extremely high response speed, ultra-light weight, flexible display, rollable screen, strong temperature adaptability, and simple manufacturing process. The method of preparing corresponding devices using inkjet spraying (ink-jet printing, referred to as IJP) has attracted much attention due to its high material utilization rate. However, when using inkjet spraying to prepare a display device, in order to ensure the uniformity of film formation in the display area and the uniformity of the brightness of the light-emitting device, in addition to spraying the light-emitting material in the display area, virtual pixels are generally sprayed with the same material around the display area to ensure the uniformity of film formation in the display area. However, setting more virtual pixels will result in a larger border of the display panel. Summary of the Invention

[0003] The embodiments of the present application provide a display panel that is conducive to reducing the border of the display panel, so as to at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned objective, according to a first aspect of the present application, a display panel is provided, comprising:

[0005] A substrate having a display area and a non-display area located around the display area, the non-display area including a first lateral redundant pixel area, a second lateral redundant pixel area, and a corner redundant pixel area, the second lateral redundant pixel area being located on at least one side of the display area in a first direction, the first lateral redundant pixel area being located between the second lateral redundant pixel area and the display area, and the corner redundant pixel area being located at a corner of the non-display area and adjacent to the second lateral redundant pixel area;

[0006] Display pixels, located in the display area;

[0007] a first lateral redundant pixel located on the substrate in the first lateral redundant pixel region, wherein an area of ​​at least one of the first lateral redundant pixels is the same as an area of ​​at least one of the display pixels;

[0008] a second lateral redundant pixel located on the substrate in the second lateral redundant pixel region, wherein a size of the second lateral redundant pixel along the second direction is larger than a size of the display pixel along the second direction and a size of the first lateral redundant pixel along the second direction, and the second direction intersects the first direction;

[0009] A corner redundant pixel is located on the substrate in the corner redundant pixel area, and a thickness of the corner redundant pixel is greater than or equal to a thickness of the second lateral redundant pixel and a thickness of the first lateral redundant pixel.

[0010] According to a second aspect of the present application, a display device is provided, comprising the above-mentioned display panel.

[0011] In the display panel and display device of the embodiments of the present application, the area of ​​the first lateral redundant pixel is the same as the area of ​​at least one display pixel. Therefore, the total number of ink droplets required to form the first lateral redundant pixel is the same as the total number of ink droplets required to form the display pixel. The first lateral redundant pixel region is located at the edge of the display area. After the ink droplets dry, the edges with uneven film thickness are first located in the first lateral redundant pixel region. In other words, the first lateral redundant pixel acts as a buffer against uneven thickness of the display pixels in the display area in the first direction.

[0012] Furthermore, the size of the second lateral redundant pixels along the second direction is greater than the size of the display pixels and the first lateral redundant pixels along the second direction. Therefore, when forming the second lateral redundant pixels, a larger total amount of ink droplets needs to be sprayed in the second direction compared to when forming the first lateral redundant pixels and display pixels. This larger total amount of ink droplets contains more solvent, which provides a solvent atmosphere for the drying process of the ink droplets in the second lateral redundant pixel region, thereby reducing the solvent evaporation rate in the second lateral redundant pixel region. The solvent evaporation rate in the outer second lateral redundant pixel region tends to be the same as the lower solvent evaporation rate in the inner display region, reducing the risk of ink flowing from the display area to the non-display area along the first direction. This alleviates the problem of uneven thickness of display pixels in the display area due to ink flowing from the display area to the non-display area along the first direction, facilitating the reduction of the size of the first and second lateral redundant pixel regions along the first direction, thereby reducing the bezel of the display panel.

[0013] Furthermore, the thickness of the corner redundant pixel is greater than or equal to the thickness of the second lateral redundant pixel and the thickness of the first lateral redundant pixel. Therefore, the total amount of ink droplets required to form the corner redundant pixel is greater than or equal to the total amount of ink droplets required to form the second lateral redundant pixel and the first lateral redundant pixel. The large amount of solvent in the ink droplets forming the corner redundant pixel provides a solvent atmosphere for the drying process of the ink droplets in the corner redundant pixel region, reducing the solvent evaporation rate in the corner redundant pixel region. The solvent evaporation rate in the corner redundant pixel region located at the corner is similar to the solvent evaporation rate in the corner of the display area, reducing the risk of ink flowing from the corner of the display area to the corner of the non-display area. This alleviates the problem of uneven thickness of display pixels at the corner of the display area due to ink flowing to the corner of the non-display area, which helps reduce the size of the corner redundant pixel region in the non-display area and further reduces the bezel of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic planar structural diagram of a display panel provided in an exemplary embodiment of the present disclosure;

[0015] Figure 2 The exemplary embodiment of the present disclosure provides Figure 1 A partial enlarged schematic diagram of point A in the display panel is shown;

[0016] Figure 3 The exemplary embodiment of the present disclosure provides Figure 1 Another partial enlarged schematic diagram of point A in the display panel is shown;

[0017] Figure 4 The exemplary embodiment of the present disclosure provides Figure 1 Another partial enlarged schematic diagram of point A in the display panel is shown;

[0018] Figure 5 is another partially enlarged schematic diagram of a display panel provided in an exemplary embodiment of the present disclosure;

[0019] Figure 6 The exemplary embodiment of the present disclosure provides Figure 1 A schematic diagram of the cross-sectional structure of the display panel taken at BB' is shown;

[0020] Figure 7 is formed Figure 1 The process diagram of the display panel is shown.

[0021] Description of reference numerals:

[0022] 100, display panel; 100A, display area; 100B, non-display area; 100B1, first lateral redundant pixel region; 100B2, second lateral redundant pixel region; 100B3, third lateral redundant pixel region; 100B4, fourth lateral redundant pixel region; 100B5, corner redundant pixel region;

[0023] 11. Substrate;

[0024] 121, display pixel; 121A, display pixel row;

[0025] 122, first lateral redundant pixel; 123, second lateral redundant pixel; 124, third lateral redundant pixel; 125, fourth lateral redundant pixel; 125A, first stripe redundant pixel; 125B, second stripe redundant pixel; 126, corner redundant pixel; 1261, first corner portion; 1262, second corner portion;

[0026] 13. Pixel definition layer; 131. Display area dam; 131A. Display area opening; 132. First lateral dam; 132A. First lateral redundant pixel opening; 133. Second lateral dam; 133A. Second lateral redundant pixel opening;

[0027] 141. anode layer; 142. cathode layer; 143. driving circuit layer;

[0028] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0030] See also Figure 1 As shown, an embodiment of the present application provides a display panel 100. The display panel 100 may be at least one of an organic light emitting diode display panel and a quantum dot display panel. In an exemplary embodiment, the display panel 100 is an organic light emitting diode display panel.

[0031] The display panel 100 includes a substrate 11. In some embodiments, the substrate 11 may include at least one of a flexible substrate 11 and a hard substrate 11. The flexible substrate 11 may include an organic substrate 11. The hard substrate 11 may include a glass substrate 11.

[0032] The substrate 11 has a display area 100A and a non-display area 100B surrounding the display area 100A. The portion of the display panel 100 corresponding to the display area 100A can emit light to achieve display. The portion of the display panel 100 corresponding to the non-display area 100B cannot emit light.

[0033] The display panel 100 further includes a plurality of display pixels 121. The plurality of display pixels 121 are located on the substrate 11 in the display area 100A.

[0034] In some embodiments, see Figures 2 to 5 As shown, the plurality of display pixels 121 include a plurality of display pixel rows 121A arranged at intervals along the second direction Y. One display pixel row 121A includes at least two display pixels 121 arranged at intervals along the first direction X and emitting light of the same color.

[0035] In an exemplary embodiment, the plurality of display pixel rows 121A include a first display pixel row, a second display pixel row, and a third display pixel row. Adjacent first display pixel rows, second display pixel rows, and third display pixel rows are repeatedly arranged as a repeating unit along the second direction Y. The first display pixel row includes first display pixels. The second display pixel row includes second display pixels. The third display pixel row includes third display pixels. The first display pixels, the second display pixels, and the third display pixels each emit three different colors of light, such as red, blue, and green.

[0036] In some embodiments, the shape of the display pixel 121 is selected from at least one of a circle, an ellipse, and a polygon. The polygon includes at least one of a square, a diamond, a pentagon, a hexagon, and an octagon. In an exemplary embodiment, the shape of the display pixel 121 is a rectangle.

[0037] In some embodiments, the second direction Y intersects the first direction X. In one exemplary embodiment, the first direction X is perpendicular to the second direction Y, but is not limited thereto. The angle between the first direction X and the second direction Y may also be an acute angle or an obtuse angle.

[0038] In some embodiments, as Figure 1 As shown, the first direction X is the width direction of the display panel 100, and the second direction Y is the length direction of the display panel 100. The length of the display panel 100 may be greater than or equal to the width of the display panel 100. In other embodiments, the first direction X may be the length direction of the display panel 100, and the second direction Y may be the width direction of the display panel 100.

[0039] See also Figure 1 As shown, the non-display area 100B includes a first lateral redundant pixel area 100B1 , a second lateral redundant pixel area 100B2 and a corner redundant pixel area 100B5 .

[0040] In the first direction X, the first lateral redundant pixel region 100B1 is adjacent to the display region 100A. In one exemplary embodiment, see Figure 1 As shown, along the first direction X, the display area 100A is located between the two first lateral redundant pixel areas 100B1 , that is, the two first lateral redundant pixel areas 100B1 are located at the outer edges of the display area 100A.

[0041] The first lateral redundant pixel region 100B1 extends along the second direction Y. The size of the first lateral redundant pixel region 100B1 along the second direction Y is greater than the size of the first lateral redundant pixel region 100B1 along the first direction X. In one exemplary embodiment, the shape of the first lateral redundant pixel region 100B1 is rectangular, but is not limited thereto.

[0042] See Figures 2 to 5 As shown, the display panel 100 further includes first lateral redundant pixels 122. The first lateral redundant pixels 122 are located in a first lateral redundant pixel region 100B1. The area of ​​at least one first lateral redundant pixel 122 is the same as the area of ​​at least one display pixel 121. Therefore, the total amount of ink droplets required to form the first lateral redundant pixel 122 is approximately the same as the total amount of ink droplets required to form the at least one display pixel 121. The first lateral redundant pixel region 100B1 is located at the edge of the display area 100A. After the ink droplets dry, the edges with uneven film thickness are first located in the first lateral redundant pixel region 100B1. This means that the first lateral redundant pixels 122 act as a buffer against uneven thickness of the display pixels 121 in the display area 100A in the first direction X.

[0043] It should be noted that the total amount of ink droplets depends on the number and density of the ink droplets. The greater the number and density of the ink droplets, the greater the total amount of ink droplets.

[0044] In some embodiments, the shape of the first lateral redundant pixel 122 is the same as the shape of the display pixel 121, which facilitates the area of ​​the first lateral redundant pixel 122 being the same as the area of ​​the display pixel 121. In one exemplary embodiment, the shape of the first lateral redundant pixel 122 and the shape of the display pixel 121 are both rectangular, but the present invention is not limited thereto. In another exemplary embodiment, the shape of the first lateral redundant pixel 122 and the shape of the display pixel 121 can both be circular, elliptical, or the like.

[0045] In some embodiments, see Figure 2 As shown, when the shape of the first lateral redundant pixel 122 is the same as that of the display pixel 121, the dimension XD2 of the first lateral redundant pixel 122 along the first direction X is equal to the dimension XD1 of the display pixel 121 along the first direction X, and the dimension YD2 of the first lateral redundant pixel 122 along the second direction Y is equal to the dimension YD1 of the display pixel 121 along the second direction Y. In this way, the area of ​​the first lateral redundant pixel 122 is the same as that of the display pixel 121.

[0046] It should be noted that, in the present application, the size of each pixel along the first direction X and the second direction Y is equal to the maximum size of each pixel along the first direction X and the second direction Y. For example, the size XD2 of the first lateral redundant pixel 122 along the first direction X is equal to the maximum size of the first lateral redundant pixel 122 along the first direction X. The size YD2 of the first lateral redundant pixel 122 along the second direction Y is equal to the maximum size of the first lateral redundant pixel 122 along the second direction Y.

[0047] In some embodiments, when the total amount of ink droplets required to form the first lateral redundant pixel 122 is the same as the total amount of ink droplets required to form at least one display pixel 121 , after the solvent in the ink droplets is removed to form a film, the thickness of the first lateral redundant pixel 122 is equal to the thickness of the at least one display pixel 121 .

[0048] In some embodiments, in a first lateral redundant pixel region 100B1, the number of first lateral redundant pixels 122 along the first direction X is M, where M is a positive integer. The greater the number of first lateral redundant pixels 122 along the first direction X, the better the first lateral redundant pixel region 100B1 buffers uneven thicknesses of the display pixels 121 in the display area 100A along the first direction X. The fewer the number of first lateral redundant pixels 122 along the first direction X, the smaller the size of the first lateral redundant pixel region 100B1 in the first direction X, thereby reducing the size of the non-display area 100B in the first direction X.

[0049] Optionally, M is greater than or equal to 1 and less than or equal to 6, ensuring that an appropriate number of first lateral redundant pixels 122, which are substantially the same as the display pixels 121, are present outside the display area 100A. In this manner, a portion of the first lateral redundant pixels 122 is retained to function as a buffer in the first direction X. Furthermore, the space occupied by the first lateral redundant pixel area 100B1 in the first direction X is reduced, providing space for the second lateral redundant pixels 123 described below.

[0050] In one exemplary embodiment, see Figure 2 and Figure 3 As shown, in a first lateral redundant pixel region 100B1 , along the first direction X, the number of the first lateral redundant pixel 122 is one.

[0051] In another exemplary embodiment, see Figure 4 and Figure 5 As shown, in a first lateral redundant pixel region 100B1 , the number of first lateral redundant pixels 122 along the first direction X is three.

[0052] In some embodiments, see Figures 2 to 5 As shown, when the plurality of display pixels 121 include a plurality of display pixel rows 121A arranged at intervals along the second direction Y, a first lateral redundant pixel region 100B1 is provided with a plurality of first lateral redundant pixels 122 arranged at intervals along the second direction Y. Each first lateral redundant pixel 122 is arranged side by side with a display pixel row 121A in the first direction X. In this way, each first lateral redundant pixel 122 is aligned with a display pixel 121 in both the first direction X and the second direction Y, which facilitates simplifying the formation processes of both.

[0053] In some embodiments, see Figures 2 to 5 As shown, the first lateral redundant pixels 122 arranged side by side along the first direction X are identical to the display pixels 121 , that is, the first lateral redundant pixels 122 arranged side by side along the first direction X are identical to the display pixels 121 in shape and area.

[0054] In some embodiments, the first lateral redundant pixels 122 and the display pixels 121 arranged side by side along the first direction X are made of the same material. Thus, when forming ink droplets, the same ink droplets can be used to continuously form the first lateral redundant pixels 122 and the display pixels 121 arranged side by side, simplifying the process of forming the first lateral redundant pixels 122 and the display pixels 121.

[0055] See Figure 1 As shown, the second lateral redundant pixel region 100B2 is located on at least one side of the display area 100A in the first direction X. The second lateral redundant pixel region 100B2 extends along the second direction Y. The first lateral redundant pixel region 100B1 is located between the second lateral redundant pixel region 100B2 and the display area 100A. As such, the second lateral redundant pixel region 100B2 can be located at the outermost side of the display panel 100 in the first direction X.

[0056] In an exemplary embodiment, along the first direction X, two second lateral redundant pixel regions 100B2 are respectively located at opposite sides of the display region 100A.

[0057] In some embodiments, the size of the second laterally redundant pixel region 100B2 along the second direction Y is greater than the size of the second laterally redundant pixel region 100B2 along the first direction X. In some embodiments, the shape of the second laterally redundant pixel region 100B2 is rectangular, but is not limited thereto.

[0058] See Figure 1 As shown, the size of the second lateral redundant pixel region 100B2 along the second direction Y may be smaller than or equal to the size of the first lateral redundant pixel region 100B1 along the second direction Y. The opposite ends of the first lateral redundant pixel region 100B1 along the second direction Y are respectively located outside the opposite ends of the second lateral redundant pixel region 100B2 along the second direction Y.

[0059] See Figures 2 to 5 As shown, the display panel 100 further includes a second lateral redundant pixel 123. The second lateral redundant pixel 123 is located in the second lateral redundant pixel region 100B2. Figure 1 and Figure 2As shown, the dimension YC1 of the second lateral redundant pixel 123 along the second direction Y is greater than the dimension YD1 of the display pixel 121 and the dimension YD2 of the first lateral redundant pixel 122 along the second direction Y. Therefore, when forming the second lateral redundant pixel 123, a larger total amount of ink droplets needs to be sprayed in the second direction Y than when forming the first lateral redundant pixel 122 and the display pixel 121. This larger total amount of ink droplets contains more solvent, which provides a solvent atmosphere for the drying process of the ink droplets in the second lateral redundant pixel region 100B2, reducing the solvent evaporation rate in the second lateral redundant pixel region 100B2. The solvent evaporation rate in the outermost second lateral redundant pixel region 100B2 is close to the smaller solvent evaporation rate in the inner display area 100A, reducing the risk of ink flowing from the display area 100A to the non-display area 100B along the first direction X. In this way, the problem of uneven thickness of the display pixels 121 in the display area 100A due to the flow of ink from the display area 100A to the non-display area 100B along the first direction X is improved, which is conducive to reducing the size of the non-display area 100B along the first direction X, thereby reducing the border of the display panel 100 in the first direction X.

[0060] It should be noted that the embodiment of the present application compresses the size of the second lateral redundant pixel area 100B2 along the first direction X and increases the total amount of ink droplets in this area to create a large amount of solvent atmosphere to improve the uneven thickness of the display pixels 121 in the first direction X, thereby achieving the purpose of a narrow frame in the first direction X.

[0061] In some embodiments, the area of ​​the second lateral redundant pixel 123 is larger than the area of ​​the display pixel 121 and the area of ​​the first lateral redundant pixel 122 , so as to increase the total amount of ink droplets forming the second lateral redundant pixel 123 .

[0062] In some embodiments, a ratio of a dimension YC1 of the second lateral redundant pixel 123 along the second direction Y to a dimension YD2 of the first lateral redundant pixel 122 along the second direction Y is greater than or equal to 2. Thus, the dimension of the second lateral redundant pixel 123 along the second direction Y is larger, which helps increase the area of ​​the second lateral redundant pixel 123.

[0063] Optionally, a ratio of a dimension YC1 of the second lateral redundant pixel 123 along the second direction Y to a dimension YD2 of the first lateral redundant pixel 122 along the second direction Y is 3 to 20. The ratio can be any value between 3 and 20, for example, 3, 5, 8, 10, 12, 15, or 20.

[0064] In some embodiments, in the second direction Y, one second lateral redundant pixel 123 extends to two opposite ends of the second lateral redundant pixel 123 and is adjacent to two corner redundant pixel regions 100B5. Figure 1 As shown, the dimension YC1 of the second lateral redundant pixel 123 along the second direction Y is equal to the dimension of the second lateral redundant pixel region 100B2 along the second direction Y. The larger dimension of the second lateral redundant pixel 123 along the second direction Y results in a larger area of ​​the second lateral redundant pixel 123. This increases the total amount of ink droplets required to form the second lateral redundant pixel 123, thereby significantly improving the uneven thickness of the display pixels 121 in the display area 100A caused by the flow of ink from the display area 100A to the non-display area 100B along the first direction X. This helps reduce the dimension of the second lateral redundant pixel region 100B2 along the first direction X, thereby reducing the bezel of the display panel 100 in the first direction X.

[0065] In some embodiments, see Figure 1 and Figure 2 As shown, a dimension YC1 of a second lateral redundant pixel 123 along the second direction Y is greater than a dimension XC1 of the second lateral redundant pixel 123 along the first direction X. Thus, while utilizing the space in the second direction Y to increase the area of ​​the second lateral redundant pixel 123, the dimension of the second lateral redundant pixel 123 along the first direction X is reduced, thereby further reducing the dimension of the non-display area 100B along the first direction X, thereby ensuring that the display panel 100 has a narrow bezel in the first direction X.

[0066] In some embodiments, one second lateral redundant pixel region 100B2 is provided with one or more second lateral redundant pixels 123 arranged at intervals along the first direction X.

[0067] Optionally, in a second lateral redundant pixel region 100B2, the number of second lateral redundant pixels 123 arranged at intervals along the first direction X is greater than or equal to 1 and less than or equal to 6. In this manner, the number of second lateral redundant pixels 123 in the second lateral redundant pixel region 100B2 is appropriate, reducing the size of the non-display area 100B along the first direction X. Furthermore, the formation process of the second lateral redundant pixels 123 can improve the uneven thickness of the display pixels 121 along the first direction X.

[0068] In one exemplary embodiment, see Figure 2 As shown, in a second lateral redundant pixel area 100B2 , the number of the second lateral redundant pixels 123 arranged at intervals along the first direction X is three.

[0069] In another exemplary embodiment, see Figures 3 to 5 As shown, in a second lateral redundant pixel area 100B2 , the number of the second lateral redundant pixels 123 arranged at intervals along the first direction X is two.

[0070] In some embodiments, the second lateral redundant pixel 123 is rectangular in shape, for example, a long strip structure extending along the second direction Y. The long strip structure design allows the second lateral redundant pixel 123 to more fully utilize the space in the lateral direction of the display area 100A while simplifying the formation of the second lateral redundant pixel 123.

[0071] In some embodiments, when the total amount of ink droplets forming the second lateral redundant pixel 123 is greater than or equal to the total amount of ink droplets forming the display pixel 121 and the total amount of ink droplets forming the first lateral redundant pixel 122, after the solvent in the ink droplets is removed to form a film, the thickness of the second lateral redundant pixel 123 is greater than or equal to the thickness of the display pixel 121 and the first lateral redundant pixel 122.

[0072] In some embodiments, when the total amount of ink droplets forming the second lateral redundant pixel 123 is greater than the total amount of ink droplets forming the display pixel 121 and the total amount of ink droplets forming the first lateral redundant pixel 122, after the solvent in the ink droplets is removed to form a film, the thickness of at least a portion of the second lateral redundant pixel 123 is greater than the thickness of the display pixel 121 and the first lateral redundant pixel 122.

[0073] See also Figures 1 to 5 As shown, the corner redundant pixel region 100B5 is located at a corner of the non-display area 100B and is adjacent to the second lateral redundant pixel region 100B2. The four corner redundant pixel regions 100B5 are respectively located at the four corners of the non-display area 100B.

[0074] Display panel 100 also includes corner redundant pixels 126. Corner redundant pixels 126 are located in corner redundant pixel region 100B5. The thickness of corner redundant pixels 126 is greater than or equal to the thickness of the second lateral redundant pixels 123 and the thickness of the first lateral redundant pixels 122. Therefore, the total number of ink droplets required to form corner redundant pixels 126 is greater than or equal to the total number of ink droplets required to form the second lateral redundant pixels 123 and the first lateral redundant pixels 122. The large amount of solvent in the ink droplets forming corner redundant pixels 126 provides a solvent atmosphere for the drying process of the ink droplets in corner redundant pixel region 100B5, reducing the solvent evaporation rate in corner redundant pixel region 100B5. The solvent evaporation rate in corner redundant pixel region 100B5 is similar to the solvent evaporation rate at the corners of display area 100A, reducing the risk of ink flowing from the corners of display area 100A to the corners of non-display area 100B. In this way, the problem of uneven thickness of the display pixels 121 at the corners of the display area 100A due to the flow of ink to the corners of the non-display area 100B is improved, which is conducive to reducing the size of the corner redundant pixel area 100B5 in the non-display area 100B and further reducing the border of the display panel 100.

[0075] In some embodiments, see Figures 2 to 5 As shown, at each corner of the non-display area 100B, there may be one or more corner redundant pixels 126. At a corner of the non-display area 100B, multiple corner redundant pixels 126 may be arranged at intervals in a direction away from the display area 100A. The areas of the multiple corner redundant pixels 126 may be the same or different.

[0076] In some embodiments, see Figures 2 to 5 As shown, the area of ​​one corner redundant pixel 126 is larger than the area of ​​the display pixel 121 and the area of ​​the first lateral redundant pixel 122. Thus, when a larger total amount of ink droplets is sprayed at at least one corner of the non-display area 100B to form the corner redundant pixel 126, the evaporation rate of the solvent at the corner of the non-display area 100B can be reduced, thereby improving the uneven thickness of the display pixel 121 at at least one corner of the display area 100A.

[0077] In some embodiments, see Figures 2 to 5 As shown, a corner redundant pixel 126 includes a first corner portion 1261 and a second corner portion 1262 connected to each other. The first corner portion 1261 extends along the second direction Y and is located on one side of the display area 100A in the first direction X. The second corner portion 1262 extends along the first direction X and is located on one side of the display area 100A in the second direction Y. In the second direction Y, the first corner portion 1261 is adjacent to the second lateral redundant pixel 123. Therefore, the corner redundant pixel 126 has an L-shape, extending from a corner of the non-display area 100B to both sides of the display area 100A. The formation of the corner redundant pixel 126 not only improves the uneven thickness of the display pixels 121 at at least one corner of the display area 100A, but also improves the uneven thickness of the display pixels 121 at non-corners in the display area 100A along at least one of the first direction X and the second direction Y.

[0078] In some embodiments, see Figures 2 to 4 As shown, in a redundant corner pixel 126, the dimension ZY1 of the first corner portion 1261 along the second direction Y is different from the dimension ZX2 of the second corner portion 1262 along the first direction X. Thus, the process of forming the larger of the dimension of the first corner portion 1261 along the second direction Y and the dimension of the second corner portion 1262 along the first direction X can better alleviate the uneven thickness of the display pixel 121 along the first direction X or the second direction Y. This also increases the design flexibility of the redundant corner pixel 126.

[0079] In an exemplary embodiment, a dimension ZY1 of the first corner portion 1261 along the second direction Y is smaller than a dimension ZX2 of the second corner portion 1262 along the first direction X. The second corner portion 1262 can improve the uneven thickness problem of the display pixel 121 along the second direction Y.

[0080] In another exemplary embodiment, a dimension ZY1 of the first corner portion 1261 along the second direction Y is greater than a dimension ZX2 of the second corner portion 1262 along the first direction X. The first corner portion 1261 can improve the uneven thickness problem of the display pixel 121 along the first direction X.

[0081] In some embodiments, in a corner redundant pixel 126 , a size ZY1 of the first corner portion 1261 along the second direction Y and a size ZX2 of the second corner portion 1262 along the first direction X may also be the same.

[0082] In some embodiments, see Figures 2 to 4 As shown, in a corner redundant pixel 126 , a size ZX1 of a first corner portion 1261 along the first direction X may be the same as a size ZY2 of a second corner portion 1262 along the second direction Y.

[0083] In some other embodiments, in a corner redundant pixel 126 , a size ZX1 of the first corner portion 1261 along the first direction X may be different from a size ZY2 of the second corner portion 1262 along the second direction Y.

[0084] In some embodiments, see Figures 2 to 4 As shown, a plurality of redundant corner pixels 126 are provided in a redundant corner pixel region 100B5. Each redundant corner pixel 126 includes a first corner portion 1261 and a second corner portion 1262 connected to each other. The first corner portions 1261 of the redundant corner pixels 126 are arranged at intervals along a first direction X, and the second corner portions 1262 of the redundant corner pixels 126 are arranged at intervals along a second direction Y. This improves the design flexibility of the redundant corner pixels 126, thereby enhancing the flexibility of achieving a narrow-frame display panel 100. Furthermore, the arrangement of the first corner portions 1261 and the second corner portions 1262 of the redundant corner pixels 126 can simplify the process of forming the redundant corner pixels 126.

[0085] In some embodiments, see Figures 2 to 4As shown, in a corner redundant pixel area 100B5, the first corner portions 1261 of a plurality of corner redundant pixels 126 are arranged at intervals along the first direction X, and the second corner portions 1262 of a plurality of corner redundant pixels 126 are arranged at intervals along the second direction Y. As the dimensions ZY1 of at least two of the first corner portions 1261 increase in the second direction Y, and the dimensions ZX2 of at least two adjacent second corner portions 1262 increase in the first direction X. In this manner, the first corner portions 1261 and second corner portions 1262 of at least some of the corner redundant pixels 126 farther from the display area 100A are larger. This design of at least some of the corner redundant pixels 126 can better alleviate the uneven thickness of the display pixels 121 at the corners of the display area 100A.

[0086] In some embodiments, see Figures 2 to 4 As shown, in a corner redundant pixel region 100B5, when the first corner portions 1261 of a plurality of corner redundant pixels 126 are arranged at intervals along a first direction X, the first corner portions 1261 of the plurality of corner redundant pixels 126 may have the same size ZX1 along the first direction X. In a corner redundant pixel region 100B5, when the second corner portions 1262 of the plurality of corner redundant pixels 126 are arranged at intervals along a second direction Y, the second corner portions 1262 of the plurality of corner redundant pixels 126 may have the same size ZY2 along the second direction Y.

[0087] In other embodiments, in a corner redundant pixel region 100B5, when the first corner portions 1261 of a plurality of corner redundant pixels 126 are arranged at intervals along the first direction X, the first corner portions 1261 of at least two of the corner redundant pixels 126 may have increasing sizes ZX1 along the first direction X. In a corner redundant pixel region 100B5, when the second corner portions 1262 of a plurality of corner redundant pixels 126 are arranged at intervals along the second direction Y, the second corner portions 1262 of the plurality of corner redundant pixels 126 may have increasing sizes ZY2 along the second direction Y.

[0088] In some embodiments, see Figures 2 to 4 As shown, the dimension ZY1 of the first corner portion 1261 along the second direction Y is smaller than the dimension YC1 of the second lateral redundant pixel 123 along the second direction Y. Thus, the smaller dimension of the first corner portion 1261 along the second direction Y primarily alleviates uneven thickness of the display pixels 121 at the corners in the display area 100A. The larger dimension of the second lateral redundant pixel 123 along the second direction Y primarily alleviates uneven thickness of the display pixels 121 in the display area 100A along the first direction X.

[0089] In some embodiments, see Figures 2 to 4As shown, in a case where a plurality of second lateral redundant pixels 123 are arranged at intervals along the first direction X in a second lateral redundant pixel region 100B2, and a plurality of corner redundant pixels 126 are arranged in a corner redundant pixel region 100B5, the number of corner redundant pixels 126 in the corner redundant pixel region 100B5 is the same as the number of second lateral redundant pixels 123 in the second lateral redundant pixel region 100B2. In this way, the effect of the corner redundant pixels 126 in improving the thickness unevenness of the display pixels 121 at the corners matches the effect of the second lateral redundant pixels 123 in improving the thickness unevenness of the display pixels 121 along the first direction X in the formation process.

[0090] In some embodiments, see Figures 2 to 4 As shown, when the number of corner redundant pixels 126 in a corner redundant pixel region 100B5 is the same as the number of second lateral redundant pixels 123 in a second lateral redundant pixel region 100B2, the first corner portions 1261 of the plurality of corner redundant pixels 126 are arranged side by side with the plurality of second lateral redundant pixels 123 in a one-to-one arrangement along the second direction Y. This simplifies the design and formation process of the redundant pixels in the adjacent second lateral redundant pixel region 100B2 and the corner redundant pixel region 100B5.

[0091] In some embodiments, see Figures 2 to 4 As shown, when the first corner portions 1261 of the plurality of corner redundant pixels 126 are arranged side by side with the plurality of second lateral redundant pixels 123 in a one-to-one manner along the second direction Y, the first corner portions 1261 and the second lateral redundant pixels 123 arranged side by side along the second direction Y can have the same size along the first direction X. This simplifies the design and formation process of the redundant pixels in the adjacent second lateral redundant pixel region 100B2 and the corner redundant pixel region 100B5.

[0092] In some embodiments, see Figure 5 As shown, the corner redundant pixel 126 may be rectangular. One corner redundant pixel 126 is located in one corner redundant pixel region 100B5 to simplify the process of forming the corner redundant pixel 126.

[0093] In other embodiments, in a corner redundant pixel area 100B5 , a plurality of corner redundant pixels 126 may extend along the first direction X and be spaced apart along the second direction Y, or a plurality of corner redundant pixels 126 may extend along the second direction Y and be spaced apart along the first direction X.

[0094] In some embodiments, the total amount of ink droplets forming the corner redundant pixels 126 is greater than the total amount of ink droplets forming the second lateral redundant pixels 123, so that the thickness of at least a portion of the corner redundant pixels 126 is greater than the thickness of the second lateral redundant pixels 123. The process for forming the corner redundant pixels 126 can better improve the uneven thickness of the display pixels 121 at the corners of the display area 100A, and improve the uneven brightness problem of the display pixels 121 at the corners caused by the uneven thickness.

[0095] See Figures 1 to 5 As shown, in some embodiments, the non-display area 100B further includes a third lateral redundant pixel area 100B3 and a fourth lateral redundant pixel area 100B4.

[0096] The third lateral redundant pixel region 100B3 is adjacent to the display region 100A in the second direction Y. The third lateral redundant pixel region 100B3 extends along the first direction X. One third lateral redundant pixel region 100B3 is located between two adjacent corner redundant pixel regions 100B5.

[0097] In one exemplary embodiment, see Figure 1 As shown, along the second direction Y, the display area 100A is located between the two third lateral redundant pixel areas 100B3 , that is, the two third lateral redundant pixel areas 100B3 are located at the outer edges of the display area 100A.

[0098] A size of the third lateral redundant pixel region 100B3 along the first direction X is greater than a size of the third lateral redundant pixel region 100B3 along the second direction Y.

[0099] In some embodiments, the display panel 100 further includes third lateral redundant pixels 124. The third lateral redundant pixels 124 are located in a third lateral redundant pixel region 100B3. The area of ​​at least one third lateral redundant pixel 124 is the same as the area of ​​at least one display pixel 121. The total number of ink droplets required to form the third lateral redundant pixel 124 is the same as the total number of ink droplets required to form the display pixel 121. Furthermore, the third lateral redundant pixel region 100B3 is located at the edge of the display area 100A in the second direction Y. After the ink droplets dry, the edges of the uneven film thickness are first located in the third lateral redundant pixel region 100B3. In other words, the third lateral redundant pixels 124 act as a buffer against uneven thickness of the display pixels 121 in the display area 100A in the second direction Y. Therefore, the third lateral redundant pixels 124, in conjunction with the first lateral redundant pixels 122, act as a buffer against uneven thickness of the display pixels 121 along the first direction X and the second direction Y, thereby alleviating uneven display brightness caused by the uneven thickness.

[0100] In some embodiments, the shape of the third lateral redundant pixel 124 is the same as that of the display pixel 121 , so that the area of ​​the third lateral redundant pixel 124 is the same as that of the display pixel 121 .

[0101] In some embodiments, when the shape of third lateral redundant pixel 124 is the same as that of display pixel 121, the size of third lateral redundant pixel 124 along the first direction X is equal to the size of display pixel 121 along the first direction X, and the size of third lateral redundant pixel 124 along the second direction Y is equal to the size of display pixel 121 along the second direction Y. In this way, the area of ​​third lateral redundant pixel 124 is the same as that of display pixel 121.

[0102] In some embodiments, the total amount of ink droplets required to form the third lateral redundant pixel 124 is the same as the total amount of ink droplets required to form at least one display pixel 121. After removing the solvent from the ink droplets to form a film, the thickness of the third lateral redundant pixel 124 is equal to the thickness of the at least one display pixel 121.

[0103] In some embodiments, when the number of the first lateral redundant pixels 122 along the first direction X in a first lateral redundant pixel region 100B1 is M, the number of the third lateral redundant pixels 124 along the second direction Y in a third lateral redundant pixel region 100B3 is N, where N is greater than M and is a positive integer. Thus, when the plurality of display pixels 121 include a plurality of different display pixel rows 121A (e.g., first display pixel row 121A to third display pixel row 121A) arranged at intervals along the second direction Y, the number and design of the third lateral redundant pixels 124 along the second direction Y in the third lateral redundant pixel region 100B3 are related to the number and design of the different display pixel rows 121A. For example, when the number of different display pixel rows 121A is three, the number of the third lateral redundant pixels 124 along the second direction Y in the third lateral redundant pixel region 100B3 needs to be greater than or equal to three. The number of first lateral redundant pixels 122 in the first lateral redundant pixel region 100B1 along the first direction X is generally greater than or equal to 1. The number of different display pixel rows 121A is generally greater than 1. Therefore, N is greater than M to accommodate the buffering effect required by the third lateral redundant pixels 124 for the multiple different display pixel rows 121A (e.g., the first display pixel row 121A to the third display pixel row 121A) arranged at intervals along the second direction Y.

[0104] Optionally, N is greater than or equal to 1 and less than or equal to 9, ensuring that an appropriate number of third lateral redundant pixels 124, which are substantially identical to the display pixels 121, are present outside the display area 100A. In this manner, while a portion of the third lateral redundant pixels 124 is retained to function as a buffer in the second direction Y, the space occupied by the third lateral redundant pixel region 100B3 in the second direction Y is reduced, providing space for the formation of the fourth lateral redundant pixels 125 described below.

[0105] In some embodiments, the plurality of third lateral redundant pixels 124 include a plurality of redundant pixel rows. In the second direction Y, the plurality of redundant pixel rows are spaced apart from the plurality of display pixel rows 121A. A redundant pixel row includes at least two third lateral redundant pixels 124 spaced apart along the first direction X and made of the same material. The third lateral redundant pixels 124 and at least two display pixels 121 in at least one display pixel row 121A are made of the same material. Thus, the provision of the third lateral redundant pixels 124 in the redundant pixel rows serves to mitigate uneven thickness of the display pixels 121 in the display pixel row 121A in the second direction Y.

[0106] In an exemplary embodiment, when the plurality of display pixel rows 121A include the first to third display pixel rows 121A, the plurality of redundant pixel rows may include a first redundant pixel row, a second redundant pixel row, and a third redundant pixel row. The first redundant pixel row includes a first type of redundant pixels, which are identical to the first display pixel 121. The second redundant pixel row includes a second type of redundant pixels, which are identical to the second display pixel 121. The third redundant pixel row includes a third type of redundant pixels, which are identical to the third display pixel 121. The first redundant pixel row, the second redundant pixel row, and the third redundant pixel row are arranged in the same direction as the first to third display pixel rows 121A.

[0107] In some embodiments, as Figures 2 to 5 As shown, in the second direction Y, at least two third lateral redundant pixels 124 in a redundant pixel row and at least two display pixels 121 in a display pixel row 121A are arranged side by side in a one-to-one manner.

[0108] See Figure 1 As shown, the fourth lateral redundant pixel region 100B4 is located on at least one side of the display area 100A in the second direction Y and is adjacent to the corner redundant pixel region 100B5. The third lateral redundant pixel region 100B3 is located between the fourth lateral redundant pixel region 100B4 and the display area 100A in the second direction Y. As such, the fourth lateral redundant pixel region 100B4 can be located at the outermost side of the display panel 100 in the second direction Y.

[0109] In an exemplary embodiment, along the second direction Y, two fourth lateral redundant pixel regions 100B4 are respectively located at opposite sides of the display region 100A.

[0110] In some embodiments, the fourth lateral redundant pixel region 100B4 extends along the first direction X. A dimension of the fourth lateral redundant pixel region 100B4 along the first direction X is greater than a dimension of the fourth lateral redundant pixel region 100B4 along the second direction Y. In some embodiments, the fourth lateral redundant pixel region 100B4 is rectangular in shape, but is not limited thereto.

[0111] See Figures 2 to 5 As shown, display panel 100 further includes a fourth lateral redundant pixel 125. Fourth lateral redundant pixel 125 is located in fourth lateral redundant pixel region 100B4. The thickness of fourth lateral redundant pixel 125 is greater than or equal to the thickness of third lateral redundant pixel 124 and at least one display pixel 121. Therefore, the total amount of ink droplets required to form fourth lateral redundant pixel 125 is greater than or equal to the total amount of ink droplets required to form third lateral redundant pixel 124 and display pixel 121. The large amount of solvent in the ink droplets forming fourth lateral redundant pixel 125 provides a solvent atmosphere for the drying process of the ink droplets in fourth lateral redundant pixel region 100B4, reducing the solvent evaporation rate in fourth lateral redundant pixel region 100B4. The solvent evaporation rate in the outer fourth lateral redundant pixel region 100B4 is similar to that in the inner display region 100A, reducing the risk of ink flowing from the display region 100A to the fourth lateral redundant pixel region 100B4. In this way, the problem of uneven thickness of the display pixels 121 in the display area 100A in the second direction Y due to the flow of ink to the non-display area 100B is improved, which is conducive to reducing the size of the non-display area 100B along the second direction Y and further reducing the frame of the display panel 100.

[0112] It should be noted that the embodiment of the present application compresses the size of the fourth lateral redundant pixel area 100B4 along the first direction X and increases the total amount of ink droplets in this area to create a large amount of solvent atmosphere to improve the uneven thickness of the display pixels 121 in the second direction Y, thereby achieving the purpose of a narrow frame in the second direction Y.

[0113] In some embodiments, the area of ​​the fourth lateral redundant pixel 125 is larger than the area of ​​the display pixel 121 and the area of ​​the third lateral redundant pixel, so as to increase the total amount of ink droplets forming the fourth lateral redundant pixel 125 .

[0114] The fourth lateral redundant pixels 125 extend along the first direction X, and the size of the fourth lateral redundant pixels 125 along the first direction X is greater than the size of the fourth lateral redundant pixels 125 along the second direction Y. In this way, while fully utilizing the space along the first direction X to increase the area of ​​the fourth lateral redundant pixels 125, the size of the fourth lateral redundant pixels 125 along the second direction Y can also be reduced, thereby reducing the border of the display panel 100 along the second direction Y.

[0115] In some embodiments, a ratio of a dimension XC2 of fourth lateral redundant pixel 125 along the first direction X to a dimension XD3 of third lateral redundant pixel 124 along the first direction X is greater than or equal to 2. Thus, the dimension of fourth lateral redundant pixel 125 along the first direction X is larger, thereby increasing the area of ​​fourth lateral redundant pixel 125.

[0116] Optionally, a ratio of a dimension XC2 of the fourth lateral redundant pixel 125 along the first direction X to a dimension XD3 of the third lateral redundant pixel 124 along the first direction X is 3 to 20. The ratio may be any value between 3 and 20, for example, 3, 5, 8, 10, 12, 15, or 20.

[0117] In some embodiments, a fourth lateral redundant pixel 125 extends along the first direction X to both ends of the fourth lateral redundant pixel 125 and is adjacent to two corner redundant pixel regions 100B5. Figure 1 As shown, the dimension XC2 of the fourth lateral redundant pixel 125 along the first direction X is equal to the dimension of the fourth lateral redundant pixel area 100B4 along the first direction X. The larger dimension of the fourth lateral redundant pixel 125 along the first direction X results in a larger area of ​​the fourth lateral redundant pixel 125. This increases the total amount of ink droplets required to form the fourth lateral redundant pixel 125, thereby significantly improving the uneven thickness of the display pixels 121 in the display area 100A caused by ink flowing from the display area 100A to the non-display area 100B along the second direction Y. This helps reduce the dimension of the non-display area 100B along the second direction Y, thereby reducing the bezel of the display panel 100 in the second direction Y.

[0118] In some embodiments, the fourth lateral redundant pixels 125 are strip-shaped, which allows the fourth lateral redundant pixels 125 to fully utilize the lateral space of the display area 100A while simplifying the formation of the fourth lateral redundant pixels 125 .

[0119] In a fourth lateral redundant pixel region 100B4, there can be one or more fourth lateral redundant pixels 125. When a plurality of fourth lateral redundant pixels 125 are provided in a fourth lateral redundant pixel region 100B4, the plurality of fourth lateral redundant pixels 125 are arranged at intervals along the second direction Y.

[0120] Optionally, in a fourth lateral redundant pixel region 100B4, the number of fourth lateral redundant pixels 125 spaced apart along the second direction Y is greater than or equal to 1 and less than or equal to 6. In this manner, the number of fourth lateral redundant pixels 125 in the fourth lateral redundant pixel region 100B4 is appropriate, reducing the size of the non-display area 100B along the second direction Y. Furthermore, the formation process of the fourth lateral redundant pixels 125 can improve the uneven thickness of the display pixels 121 along the second direction Y.

[0121] In one exemplary embodiment, see Figure 2 and Figure 5 As shown, three fourth lateral redundant pixels 125 are provided in a fourth lateral redundant pixel region 100B4.

[0122] In another exemplary embodiment, see Figure 3 and Figure 4 As shown, two fourth lateral redundant pixels 125 are disposed in one fourth lateral redundant pixel region 100B4.

[0123] In some embodiments, see Figures 2 to 5 As shown, when a fourth lateral redundant pixel region 100B4 is provided with a plurality of fourth lateral redundant pixels 125 , the sizes of the plurality of fourth lateral redundant pixels 125 along the second direction Y may be the same.

[0124] In some other embodiments, when a fourth lateral redundant pixel region 100B4 is provided with a plurality of fourth lateral redundant pixels 125, the sizes of at least two fourth lateral redundant pixels 125 along the second direction Y gradually change in a direction away from the display area 100A. For example, the sizes of at least two fourth lateral redundant pixels 125 along the second direction Y gradually decrease in a direction away from the display area 100A.

[0125] In some embodiments, see Figure 2 、 Figure 3 as well as Figure 5 As shown, when a fourth lateral redundant pixel region 100B4 is provided with a plurality of fourth lateral redundant pixels 125 , the sizes of the plurality of fourth lateral redundant pixels 125 along the first direction X are the same.

[0126] In some other embodiments, when a fourth lateral redundant pixel region 100B4 is provided with a plurality of fourth lateral redundant pixels 125 , at least two fourth lateral redundant pixels 125 have different sizes along the first direction X.

[0127] In one exemplary embodiment, see Figure 4As shown, the plurality of fourth lateral redundant pixels 125 include a first strip of redundant pixels 125A and a second strip of redundant pixels 125B. The first strip of redundant pixels 125A is located between the second strip of redundant pixels 125B and the third lateral redundant pixel region 100B3, and between the corner redundant pixels 126 and the third lateral redundant pixel region 100B3. The size of the second strip of redundant pixels 125B along the first direction X is larger than the size of the first strip of redundant pixels 125A along the first direction X. This allows the first strip of redundant pixels 125A closer to the display area 100A to have a larger area, resulting in a greater total amount of ink droplets forming the first strip of redundant pixels 125A. This improves the uneven thickness of the display pixels 121 along the second direction Y, helps reduce the size of the fourth lateral redundant pixel region 100B4 along the second direction Y, and reduces the size of the non-display area 100B along the second direction Y.

[0128] In some embodiments, the thickness of the first strip-shaped redundant pixels 125A can be greater than the thickness of the second strip-shaped redundant pixels 125B to accommodate the thickness of the dried ink droplets when the total amount of ink droplets forming the first strip-shaped redundant pixels 125A is greater than the total amount of ink droplets forming the second strip-shaped redundant pixels 125B. When the total amount of ink droplets forming the first strip-shaped redundant pixels 125A is greater than the total amount of ink droplets forming the second strip-shaped redundant pixels 125B, the uneven thickness of the display pixels 121 along the second direction Y can be better alleviated.

[0129] In some embodiments, see Figure 2 and Figure 3 As shown, when a plurality of corner redundant pixels 126 are provided in a corner redundant pixel region 100B5 and each corner redundant pixel 126 includes a second corner portion 1262 extending along the first direction X, each of the second corner portions 1262 of the plurality of corner redundant pixels 126 is arranged side by side with a fourth lateral redundant pixel 125 along the first direction X. This simplifies the design and formation process of the corner redundant pixels 126 and the fourth lateral redundant pixels 125.

[0130] In some embodiments, when a plurality of corner redundant pixels 126 are provided in a corner redundant pixel region 100B5 and each corner redundant pixel 126 includes a second corner portion 1262 extending along the first direction X, the size of one fourth lateral redundant pixel 125 along the second direction Y is equal to the size of one second corner portion 1262 along the second direction Y. This facilitates simplifying the design and formation process of the corner redundant pixels 126 and the fourth lateral redundant pixels 125.

[0131] In some embodiments, see Figures 1 to 4As shown, when a plurality of corner redundant pixels 126 are provided in a corner redundant pixel area 100B5, and the corner redundant pixels 126 include a second corner portion 1262 extending along a first direction X, a dimension XC2 of a fourth lateral redundant pixel 125 along the first direction X is greater than a dimension ZX2 of the second corner portion 1262 along the first direction X. Thus, the dimension of the second corner portion 1262 along the second direction Y is smaller, which primarily reduces uneven thickness of the display pixels 121 at the corners of the display area 100A. The dimension of the fourth lateral redundant pixel 125 along the second direction Y is larger, which primarily reduces uneven thickness of the display pixels 121 in the display area 100A along the second direction Y.

[0132] In some embodiments, the thickness of the fourth lateral redundant pixel 125 is greater than or equal to the thickness of the second lateral redundant pixel 123. Thus, the total amount of ink droplets used to form the fourth lateral redundant pixel 125 can be greater than or equal to the total amount of ink droplets used to form the second lateral redundant pixel 123, ensuring that the fourth lateral redundant pixel 125 improves uneven thickness of the display pixels 121 along the second direction Y as effectively as the second lateral redundant pixel 123 improves uneven thickness of the display pixels 121 along the first direction X.

[0133] Optionally, the thickness of the fourth lateral redundant pixel 125 is greater than the thickness of the second lateral redundant pixel 123. The total amount of ink droplets forming the fourth lateral redundant pixel 125 can be greater than the total amount of ink droplets forming the second lateral redundant pixel 123. The design of the fourth lateral redundant pixel 125 can better reduce the size of the non-display area 100B along the second direction Y, which helps to make the size of the non-display area 100B along the second direction Y smaller.

[0134] In some embodiments, the thickness of the corner redundant pixel 126 is greater than the thickness of the fourth lateral redundant pixel 125. Thus, the total amount of ink droplets forming the corner redundant pixel 126 can be greater than the total amount of ink droplets forming the fourth lateral redundant pixel 125, thereby better improving the uneven thickness of the display pixels 121 located at the corners of the display area 100A.

[0135] It should be noted that the display pixel 121, the first to fourth lateral redundant pixels 122 to 125, and the corner redundant pixel 126 may all comprise, but are not limited to, organic light-emitting materials. The organic light-emitting material may include at least one of a red organic light-emitting material, a green organic light-emitting material, and a blue organic light-emitting material. The display pixel 121 and the redundant pixels may be obtained by spraying ink droplets and then removing the solvent from the ink droplets. Spraying may include at least one of inkjet printing and coating. Exemplarily, the ink droplets are sprayed by inkjet printing.

[0136] It should also be noted that, in the embodiment of the present application, the spacing between any two of the first to fourth lateral redundant pixels 122 to 125 and the corner redundant pixels 126 can flexibly adjust the design of the non-display area 100B, thereby better improving the problem of uneven thickness of the display pixels 121 in the display area 100A and reducing the size of the non-display area 100B of the display panel 100.

[0137] In some embodiments, see Figure 6 As shown, the display panel 100 further includes a pixel definition layer 13. The pixel definition layer 13 is located on the substrate 11. The pixel definition layer 13 includes a display area dam 131 and a plurality of display area openings 131A. The display area dam 131 and the plurality of display area openings 131A are both located in the display area 100A. The display area dam 131 is located between adjacent display area openings 131A. The plurality of display pixels 121 are respectively located within the plurality of display area openings 131A.

[0138] Pixel definition layer 13 also includes a first lateral redundant pixel opening 132A located in first lateral redundant pixel region 100B1. Each first lateral redundant pixel 122 is located within each first lateral redundant pixel opening 132A. If first lateral redundant pixel 122 is identical to display pixel 121, first lateral redundant pixel opening 132A is identical to display region opening 131A, i.e., both have the same shape and size.

[0139] In some embodiments, the pixel definition layer 13 further includes a first lateral dam 132 surrounding the first lateral redundant pixel opening 132A. The thickness of the first lateral dam 132 is equal to that of the display area dam 131. Thus, the first lateral dam 132 and the display area dam 131 can be formed using the same process, simplifying the manufacturing process of the display panel 100. Furthermore, the structure surrounding the first lateral redundant pixel opening 132A is identical to that surrounding the display area opening 131A, allowing the first lateral redundant pixel 122 to better serve as a buffer during its formation.

[0140] Pixel definition layer 13 also includes a second lateral redundant pixel opening 133A located in second lateral redundant pixel region 100B2. A second lateral redundant pixel 123 is located within each second lateral redundant pixel opening 133A. In some embodiments, if a second lateral redundant pixel 123 extends along the second direction Y and is in an elongated strip shape, the second lateral redundant pixel opening 133A also extends along the second direction Y and is in an elongated strip shape.

[0141] In some embodiments, the pixel definition layer 13 further includes a second lateral dam 133. The second lateral dam 133 surrounds the second lateral redundant pixel opening 133A. The thickness of the second lateral dam 133 is greater than or equal to the thickness of the display area dam 131. This reduces the risk of ink droplets in the display area 100A flowing into the second lateral redundant pixel opening 133A, thereby improving the thickness uniformity of the display pixels 121 in the display area 100A along the first direction X.

[0142] Pixel definition layer 13 also includes a third lateral redundant pixel opening (not shown), which is located in third lateral redundant pixel region 100B3. A third lateral redundant pixel 124 is located within each third lateral redundant pixel opening. In some embodiments, when third lateral redundant pixel 124 is identical to display pixel 121, the third lateral redundant pixel opening is identical to display region opening 131A, i.e., both have the same shape and size.

[0143] In some embodiments, the pixel definition layer 13 further includes a third lateral dam (not shown) surrounding the third lateral redundant pixel opening. The thickness of the third lateral dam is equal to that of the display area dam 131. Thus, the third lateral dam and the display area dam 131 can be formed using the same process, simplifying the manufacturing process of the display panel 100. Furthermore, the structure surrounding the third lateral redundant pixel opening is identical to that surrounding the display area opening 131A, allowing the third lateral redundant pixel 124 to better serve as a buffer during its formation.

[0144] Pixel definition layer 13 also includes a fourth laterally redundant pixel opening (not shown), which is located in fourth laterally redundant pixel region 100B4. A fourth laterally redundant pixel 125 is located within each fourth laterally redundant pixel opening. In some embodiments, if a fourth laterally redundant pixel 125 extends along the first direction X and is in the shape of an elongated strip, the fourth laterally redundant pixel opening also extends along the first direction X and is in the shape of an elongated strip.

[0145] In some embodiments, the pixel definition layer 13 further includes a fourth lateral dam (not shown). The fourth lateral dam surrounds the fourth lateral redundant pixel opening. The thickness of the fourth lateral dam is greater than or equal to the thickness of the display area dam 131. This reduces the risk of ink droplets in the display area 100A flowing into the fourth lateral redundant pixel opening and improves the thickness uniformity of the display pixels 121 in the display area 100A along the second direction Y.

[0146] The pixel definition layer 13 further includes a corner redundant pixel opening (not shown), which is located in the corner redundant pixel region 100B5. One corner redundant pixel 126 is located in one corner redundant pixel opening.

[0147] In some embodiments, the corner redundant pixel opening includes a first corner redundant pixel opening extending along the second direction Y and a second corner redundant pixel opening extending along the first direction X. The first corner redundant pixel opening is connected to the second corner redundant pixel opening. The first corner portion 1261 is located within the first corner redundant pixel opening. The second corner portion 1262 is located within the second corner redundant pixel opening. In other words, if the corner redundant pixel 126 is L-shaped, the corner redundant pixel opening is also L-shaped.

[0148] The pixel definition layer 13 also includes corner dams (not shown) surrounding the redundant corner pixel openings. The corner dams have a thickness greater than or equal to that of the display area dams 131. This reduces the risk of ink droplets in the display area 100A flowing into the redundant corner pixel openings and improves the thickness uniformity of the display pixels 121 at the corners of the display area 100A.

[0149] In some embodiments, the display panel 100 further includes an anode layer 141 and a cathode layer 142, and the pixel definition layer 13 is located between the anode layer 141 and the cathode layer 142. The pixel definition layer 13 is located on the anode layer 141. The cathode layer 142 covers the light emitting layer and the pixel definition layer 13.

[0150] In some embodiments, the display panel 100 further includes a driving circuit layer 143 . The driving circuit layer 143 is located between the substrate 11 and the anode layer 141 . The driving circuit layer 143 includes a pixel driving circuit connected to the anodes in the anode layer 141 .

[0151] like Figure 7 As shown in (A) to (D), Figure 7 (A) is a schematic diagram of printing ink drops when forming the display pixel 121, the first lateral redundant pixel 122 and the third lateral redundant pixel 124. Figure 7 Middle (B) is a schematic diagram of printing ink droplets when forming the second lateral redundant pixel 123, Figure 7 Middle (C) is a schematic diagram of printing ink drops when forming the fourth lateral redundant pixel 125, Figure 7 Middle (D) is a schematic diagram of printing ink droplets when forming the corner redundant pixel 126.

[0152] Combine Figure 7 As can be seen from Figures (A) to (D), the number and density of ink droplets printed to form display pixel 121, first lateral redundant pixel 122, and third lateral redundant pixel 124 are the same. The number and density of ink droplets printed to form second lateral redundant pixel 123, fourth lateral redundant pixel 125, and corner redundant pixel 126 are greater than the number and density of ink droplets printed to form display pixel 121.

[0153] Therefore, it can be seen that the embodiment of the present application optimizes the design of the first to fourth lateral redundant pixels 122 to 125 and the corner redundant pixels 126 to improve the uneven thickness of the display pixels 121, especially the uneven thickness of the display pixels 121 at the corners of the display area, thereby alleviating the uneven display brightness caused by the uneven thickness and achieving a narrow bezel design of the display panel.

[0154] Based on the same inventive concept, the present application further provides a display device, which includes the display panel of any of the above embodiments.

[0155] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0156] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0157] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0158] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, 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 the technical solution of the present application.

Claims

1. A display panel, characterized in that: include: A substrate having a display area and a non-display area located around the display area, the non-display area including a first lateral redundant pixel area, a second lateral redundant pixel area, and a corner redundant pixel area, the second lateral redundant pixel area being located on at least one side of the display area in a first direction, the first lateral redundant pixel area being located between the second lateral redundant pixel area and the display area, and the corner redundant pixel area being located at a corner of the non-display area and adjacent to the second lateral redundant pixel area; Display pixels are located on the substrate in the display area; a first lateral redundant pixel located on the substrate in the first lateral redundant pixel region, wherein an area of ​​at least one of the first lateral redundant pixels is the same as an area of ​​at least one of the display pixels; a second lateral redundant pixel located on the substrate in the second lateral redundant pixel region, wherein a size of the second lateral redundant pixel along a second direction is larger than a size of the display pixel along the second direction and a size of the first lateral redundant pixel along the second direction, and the second direction intersects the first direction; A corner redundant pixel is located on the substrate in the corner redundant pixel area, and a thickness of the corner redundant pixel is greater than or equal to a thickness of the second lateral redundant pixel and a thickness of the first lateral redundant pixel.

2. The display panel according to claim 1, wherein: The corner redundant pixel includes a first corner portion and a second corner portion connected to each other; The first corner portion extends along the second direction and is located on one side of the display area in the first direction. In the first direction, the first lateral redundant pixel is located between the first corner portion and the display area. In the second direction, the first corner portion is adjacent to the second lateral redundant pixel. The second corner portion extends along the first direction and is located on one side of the display area in the second direction.

3. The display panel according to claim 2, wherein: A size of the first corner portion along the second direction is different from a size of the second corner portion along the first direction.

4. The display panel according to claim 2, wherein: A size of the first corner portion along the second direction is smaller than a size of the second lateral redundant pixel along the second direction.

5. The display panel according to claim 2, wherein: A plurality of the corner redundant pixels are provided in one corner redundant pixel area, the first corner portions of the plurality of the corner redundant pixels are arranged at intervals along the first direction, and the second corner portions of the plurality of the corner redundant pixels are arranged at intervals along the second direction.

6. The display panel according to claim 5, wherein: A plurality of second lateral redundant pixels arranged at intervals along the first direction are provided in one of the second lateral redundant pixel regions, and the number of the corner redundant pixels in one of the corner redundant pixel regions is the same as the number of the second lateral redundant pixels in the one of the second lateral redundant pixel regions.

7. The display panel according to claim 6, wherein: The first corner portions of the plurality of corner redundant pixels are respectively arranged side by side with the plurality of second lateral redundant pixels in a one-to-one manner along the second direction.

8. The display panel according to any one of claims 2 to 7, characterized in that: A size of one of the second lateral redundant pixels along the first direction is equal to a size of one of the first corner portions along the first direction.

9. The display panel according to claim 1, wherein: In the second direction, one of the second lateral redundant pixels extends to two opposite ends of the second lateral redundant pixel and is respectively adjacent to two of the corner redundant pixel regions; A plurality of second lateral redundant pixels arranged at intervals along the first direction are disposed in one second lateral redundant pixel region.

10. The display panel according to claim 1, wherein The thickness of at least some of the corner redundant pixels is greater than the thickness of the second lateral redundant pixels.

11. The display panel according to claim 2, wherein: The non-display area further includes a third lateral redundant pixel area and a fourth lateral redundant pixel area, the fourth lateral redundant pixel area is located on at least one side of the display area in the second direction and is adjacent to the corner redundant pixel area, and the third lateral redundant pixel area is located between the fourth lateral redundant pixel area and the display area in the second direction; The display panel further includes a third lateral redundant pixel and a fourth lateral redundant pixel. The third lateral redundant pixel is located in the third lateral redundant pixel region, and the area of ​​at least one of the third lateral redundant pixels is the same as the area of ​​at least one of the display pixels. The fourth lateral redundant pixel is located in the fourth lateral redundant pixel region, and the thickness of the fourth lateral redundant pixel is greater than or equal to the thickness of the third lateral redundant pixel and the display pixel.

12. The display panel according to claim 11, wherein: One of the fourth lateral redundant pixels extends along the first direction to both ends of the fourth lateral redundant pixel and is respectively adjacent to two of the corner redundant pixel regions. One of the fourth lateral redundant pixel regions is provided with a plurality of fourth lateral redundant pixels arranged at intervals along the second direction.

13. The display panel according to claim 12, wherein: A plurality of the corner redundant pixels are provided in one corner redundant pixel area, and each of the second corner portions of the plurality of the corner redundant pixels is arranged side by side with one of the fourth lateral redundant pixels along the first direction.

14. The display panel according to claim 12, wherein: The plurality of fourth lateral redundant pixels include first strip redundant pixels and second strip redundant pixels, the first strip redundant pixels are located between the second strip redundant pixels and the third lateral redundant pixel region and between the corner redundant pixels and the third lateral redundant pixel region, and the size of the second strip redundant pixels along the first direction is larger than the size of the first strip redundant pixels along the first direction.

15. The display panel according to claim 11, wherein: A size of one of the fourth lateral redundant pixels along the first direction is larger than a size of the second corner portion along the first direction.

16. The display panel according to claim 11, wherein: A size of one of the fourth lateral redundant pixels along the second direction is equal to a size of one of the second corner portions along the second direction.

17. The display panel according to claim 11, wherein: The thickness of the fourth lateral redundant pixel is greater than or equal to the thickness of the second lateral redundant pixel, and the thickness of the corner redundant pixel is greater than the thickness of the fourth lateral redundant pixel.

18. The display panel according to claim 11, wherein: In one of the first lateral redundant pixel regions, the number of the first lateral redundant pixels along the first direction is M, where M is a positive integer; In one of the third lateral redundant pixel regions, the number of the third lateral redundant pixels along the second direction is N, where N is greater than M and is a positive integer.

19. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 18.

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