Display panel and display device

Abstract

The invention relates to a display panel and a display device. The second lateral redundant pixel region is located on at least one side of the display region in the first direction. The first lateral redundant pixel region is located between the second lateral redundant pixel region and the display region. The corner redundant pixel area is located at the corner of the non-display area and is adjacent to the second lateral redundant pixel area. The display pixels are located in the display area. The first lateral redundant pixel is located in the first lateral redundant pixel region. The area of the at least one first lateral redundant pixel is the same as the area of the at least one display pixel. The second lateral redundant pixel is located in the second lateral redundant pixel area. The size of the second lateral redundant pixel in the second direction is larger than the size of the display pixel and the first lateral redundant pixel in the second direction. The second direction intersects the first direction. The corner redundant pixels are located in the corner redundant pixel area. The thickness of the corner redundant pixel is larger than or equal to the thickness of the second lateral redundant pixel and the thickness of the first lateral redundant pixel.

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, soft 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 luminescent 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, which is beneficial for 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 object, 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, wherein the non-display area includes a first lateral redundant pixel area, a second lateral redundant pixel area, and a corner redundant pixel area, wherein the second lateral redundant pixel area is located on at least one side of the display area in a first direction, the first lateral redundant pixel area is located between the second lateral redundant pixel area and the display area, and the corner redundant pixel area is located at a corner of the non-display area and is 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 is located on the substrate in the second lateral redundant pixel area, the size of the second lateral redundant pixel along the second direction is larger than the size of the display pixel along the second direction and the size of the first lateral redundant pixel along the second direction, and the second direction intersects with 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 the display device of the embodiment 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 amount of ink droplets required to form the first lateral redundant pixel is the same as the total amount of ink droplets required to form the display pixel. The first lateral redundant pixel area is located at the edge of the display area. After the ink droplets are dried, the edge with uneven film thickness will first be located in the first lateral redundant pixel area, that is, the first lateral redundant pixel plays a buffering role for the uneven thickness of the display pixels in the display area in the first direction.

[0012] Moreover, the size of the second lateral redundant pixel along the second direction is greater than the size of the display pixel and the first lateral redundant pixel along the second direction. Therefore, when forming the second lateral redundant pixel, a larger total amount of ink droplets needs to be sprayed in the second direction than when forming the first lateral redundant pixel and the display pixel. The larger total amount of ink droplets includes more solvent, and more solvent provides a solvent atmosphere for the drying process of the ink droplets in the second lateral redundant pixel area, thereby reducing the volatilization rate of the solvent in the second lateral redundant pixel area. The volatilization rate of the solvent in the second lateral redundant pixel area located on the outside tends to be the same as the smaller solvent volatilization rate of the display area located on the inside, thereby reducing the risk of ink flowing from the display area to the non-display area along the first direction. In this way, the problem of uneven thickness of the display pixels in the display area due to the flow of ink from the display area to the non-display area along the first direction is improved, which is conducive to reducing the size of the first lateral redundant pixel area and the second lateral redundant pixel area along the first direction, thereby reducing the frame 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. A 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 area, reducing the volatilization rate of the solvent in the corner redundant pixel area. The volatilization rate of the solvent in the corner redundant pixel area located at the corner tends to be the same as the volatilization rate of the solvent at the corner in the display area, reducing the risk of ink flowing from the corner of the display area to the corner of the non-display area. In this way, the problem of uneven thickness of the display pixels at the corner of the display area due to the flow of ink to the corner of the non-display area is improved, which is conducive to reducing the size of the corner redundant pixel area in the non-display area and further reducing the frame of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0019] Figure 6 is provided in an exemplary embodiment of the present disclosure Figure 1 A schematic diagram of the cross-sectional structure of the display panel 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 area; 100B2, second lateral redundant pixel area; 100B3, third lateral redundant pixel area; 100B4, fourth lateral redundant pixel area; 100B5, corner redundant pixel area;

[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 strip redundant pixel; 125B, second strip 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 technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than 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 located around 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. An adjacent row of the first display pixel row, a row of the second display pixel row, and a row of the third display pixel row are repeatedly arranged as a repeating unit along the second direction Y. The first display pixel row includes a first display pixel. The second display pixel row includes a second display pixel. The third display pixel row includes a third display pixel. The first display pixel, the second display pixel, and the third display pixel respectively emit three different colors of light, such as red light, blue light, and green light.

[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 rhombus, 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 an 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, 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. 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 an exemplary embodiment, the first lateral redundant pixel region 100B1 is rectangular in shape, but is not limited thereto.

[0042] See also Figures 2 to 5 As shown, the display panel 100 further includes a first lateral redundant pixel 122. The first lateral redundant pixel 122 is located in the 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 similar to the total amount of ink droplets required to form at least one display pixel 121. The first lateral redundant pixel region 100B1 is located at the edge of the display region 100A. After the ink droplets are dried, the edge with uneven film thickness will first be located in the first lateral redundant pixel region 100B1, that is, the first lateral redundant pixel 122 plays a buffering role for the uneven thickness of the display pixels 121 in the display region 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 ink droplets. The greater the number and density of 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 is conducive to the area of ​​the first lateral redundant pixel 122 being the same as the area of ​​the display pixel 121. In an exemplary embodiment, the shape of the first lateral redundant pixel 122 and the shape of the display pixel 121 are both rectangular, but not limited thereto. In an exemplary embodiment, the shape of the first lateral redundant pixel 122 and the shape of the display pixel 121 can both be circular or elliptical, etc.

[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 size XD2 of the first lateral redundant pixel 122 along the first direction X is equal to the size XD1 of the display pixel 121 along the first direction X, and the size YD2 of the first lateral redundant pixel 122 along the second direction Y is equal to the size 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 removing the solvent film in the ink droplets, 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 the first lateral redundant pixels 122 along the first direction X is M, where M is a positive integer. The more the number of the first lateral redundant pixels 122 along the first direction X, the better the buffering effect of the first lateral redundant pixel region 100B1 on the uneven thickness of the display pixels 121 of the display area 100A in the first direction X. The fewer the number of the first lateral redundant pixels 122 in the first direction X, the smaller the size occupied by 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 the number of first lateral redundant pixels 122 that are similar to the display pixels 121 outside the display area 100A is appropriate. In this way, while a portion of the first lateral redundant pixels 122 is reserved to play a buffering role in the first direction X, the space occupied by the first lateral redundant pixel area 100B1 in the first direction X is reduced, providing a 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 area 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 area 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, in the case where the plurality of display pixels 121 include a plurality of display pixel rows 121A arranged at intervals along the second direction Y, a plurality of first lateral redundant pixels 122 arranged at intervals along the second direction Y are disposed in a first lateral redundant pixel region 100B1, and each first lateral redundant pixel 122 is disposed 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 the first direction X and the second direction Y, which is conducive to simplifying the formation process 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 the same as the display pixels 121 , that is, the first lateral redundant pixels 122 arranged side by side along the first direction X are the same as 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 include 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, thereby simplifying the process of forming the first lateral redundant pixels 122 and the display pixels 121.

[0055] See also Figure 1 As shown, the second lateral redundant pixel region 100B2 is located at least one side of the display region 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 region 100A. In this way, 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 lateral redundant pixel region 100B2 along the second direction Y is greater than the size of the second lateral redundant pixel region 100B2 along the first direction X. In some embodiments, the second lateral redundant pixel region 100B2 is rectangular in shape, but is not limited thereto.

[0058] See also 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 located outside the opposite ends of the second lateral redundant pixel region 100B2 along the second direction Y, respectively.

[0059] See also 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 size YC1 of the second lateral redundant pixel 123 along the second direction Y is larger than the size YD1 of the display pixel 121 along the second direction Y and the size 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. The larger total amount of ink droplets includes more solvent, which provides a solvent atmosphere for the drying process of the ink droplets in the second lateral redundant pixel area 100B2, thereby reducing the volatilization rate of the solvent in the second lateral redundant pixel area 100B2. The volatilization rate of the solvent in the second lateral redundant pixel area 100B2 located at the outermost side tends to be the same as the smaller volatilization rate of the solvent in the display area 100A located at the inner side, thereby 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 beneficial 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 the 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 size YC1 of the second lateral redundant pixel 123 along the second direction Y to a size YD2 of the first lateral redundant pixel 122 along the second direction Y is greater than or equal to 2. Thus, the size of the second lateral redundant pixel 123 along the second direction Y is larger, which is beneficial to increase the area of ​​the second lateral redundant pixel 123.

[0063] Optionally, the ratio of the size YC1 of the second lateral redundant pixel 123 along the second direction Y to the size YD2 of the first lateral redundant pixel 122 along the second direction Y is 3 to 20. The ratio may 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 respectively. Figure 1 As shown, the size YC1 of the second lateral redundant pixel 123 along the second direction Y is equal to the size of the second lateral redundant pixel area 100B2 along the second direction Y. The size of the second lateral redundant pixel 123 along the second direction Y is larger, so that the area of ​​the second lateral redundant pixel 123 is larger. The total amount of ink droplets required to form the second lateral redundant pixel 123 is larger, and the problem of uneven thickness of the display pixels 121 of 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 better improved, which is conducive to reducing the size of the second lateral redundant pixel area 100B2 along the first direction X, thereby reducing the frame of the display panel 100 in the first direction X.

[0065] In some embodiments, see Figure 1 and Figure 2 As shown, a size YC1 of a second lateral redundant pixel 123 along the second direction Y is greater than a size XC1 of the second lateral redundant pixel 123 along the first direction X. In this way, while the area of ​​the second lateral redundant pixel 123 is increased by utilizing the space in the second direction Y, the size of the second lateral redundant pixel 123 along the first direction X is reduced, thereby reducing the size of the non-display area 100B along the first direction X, thereby ensuring that the display panel 100 has a narrow frame 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 way, the number of second lateral redundant pixels 123 in the second lateral redundant pixel region 100B2 is appropriate, the size of the non-display region 100B along the first direction X is reduced, and the formation process of the second lateral redundant pixels 123 can improve the uneven thickness problem 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 2.

[0070] In some embodiments, the second lateral redundant pixel 123 is in a rectangular shape, for example, a long strip structure extending along the second direction Y. The design of the long strip structure enables the second lateral redundant pixel 123 to make full use of the lateral space of the display area 100A while simplifying the difficulty of forming 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 film is removed from the ink droplets, 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 part 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 the corner of the non-display region 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 region 100B.

[0074] The display panel 100 further includes a corner redundant pixel 126. The corner redundant pixel 126 is located in the corner redundant pixel area 100B5. The thickness of the corner redundant pixel 126 is greater than or equal to the thickness of the second lateral redundant pixel 123 and the thickness of the first lateral redundant pixel 122. Therefore, the total amount of ink droplets required to form the corner redundant pixel 126 is greater than or equal to the total amount of ink droplets required to form the second lateral redundant pixel 123 and the first lateral redundant pixel 122. A large amount of solvent in the ink droplets forming the corner redundant pixel 126 provides a solvent atmosphere for the drying process of the ink droplets in the corner redundant pixel area 100B5, reducing the volatilization rate of the solvent in the corner redundant pixel area 100B5. The volatilization rate of the solvent in the corner redundant pixel area 100B5 located at the corner tends to be the same as the volatilization rate of the solvent at the corner in the display area 100A, reducing the risk of ink flowing from the corner of the display area 100A to the corner of the 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 beneficial 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, the number of corner redundant pixels 126 may be one or more. At a corner of the non-display area 100B, a plurality of corner redundant pixels 126 may be arranged at intervals in a direction away from the display area 100A, and the areas of the plurality of corner redundant pixels 126 may be the same or different.

[0076] In some embodiments, see Figures 2 to 5 As shown, the area of ​​a corner redundant pixel 126 is larger than the area of ​​the display pixel 121 and the area of ​​the first lateral redundant pixel 122. In this way, 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 volatilization rate of the solvent at the corner of the non-display area 100B can be reduced, thereby improving the problem of uneven thickness of the display pixel 121 at at least one corner in 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 shape of the corner redundant pixel 126 is L-shaped, and the corner redundant pixel 126 extends from the corner of the non-display area 100B to both sides of the display area 100A. When the corner redundant pixel 126 is formed, not only the problem of uneven thickness of the display pixel 121 at at least one corner of the display area 100A is improved, but also the problem of uneven thickness of the display pixel 121 at the non-corner in the display area 100A along at least one of the first direction X and the second direction Y can be improved.

[0078] In some embodiments, see Figures 2 to 4 As shown, in a corner redundant 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. In this way, the formation process of the larger one 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 improve the uneven thickness problem of the display pixel 121 along the first direction X or the second direction Y. At the same time, the design flexibility of the corner redundant pixel 126 can also be increased.

[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 a first direction X may be the same as a size ZY2 of a second corner portion 1262 along a second direction Y.

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

[0084] In some embodiments, see Figures 2 to 4 As shown, a corner redundant pixel area 100B5 is provided with a plurality of corner redundant pixels 126. In the case where each corner redundant 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 plurality of corner redundant pixels 126 are arranged at intervals along the first direction X, and the second corner portions 1262 of the plurality of corner redundant pixels 126 are arranged at intervals along the second direction Y. In this way, the plurality of corner redundant pixels 126 can improve their design flexibility, thereby improving the flexibility of the display panel 100 for realizing a narrow frame. In addition, the arrangement of the first corner portions 1261 and the second corner portions 1262 of the plurality of corner redundant pixels 126 can simplify the formation process of the plurality of corner redundant 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 the plurality of corner redundant pixels 126 are arranged at intervals along the first direction X, and the second corner portions 1262 of the plurality of corner redundant pixels 126 are arranged at intervals along the second direction Y. In the direction away from the display area 100A, the size ZY1 of at least two first corner portions 1261 along the second direction Y increases gradually, and the size ZX2 of at least two adjacent second corner portions 1262 along the first direction X increases gradually. In this way, the size of the first corner portion 1261 and the second corner portion 1262 of at least part of the corner redundant pixels 126 away from the display area 100A is larger, and the design of at least part of the corner redundant pixels 126 can better improve the problem of 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 area 100B5, when the first corner portions 1261 of the plurality of corner redundant pixels 126 are arranged at intervals along the first direction X, the sizes ZX1 of the first corner portions 1261 of the plurality of corner redundant pixels 126 along the first direction X may be the same. In a corner redundant pixel area 100B5, when the second corner portions 1262 of the plurality of corner redundant pixels 126 are arranged at intervals along the second direction Y, the sizes ZY2 of the second corner portions 1262 of the plurality of corner redundant pixels 126 along the second direction Y may be the same.

[0087] In some other embodiments, in a corner redundant pixel area 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 size ZX1 of the first corner portions 1261 of at least two corner redundant pixels 126 along the first direction X may be increased. In a corner redundant pixel area 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 size ZY2 of the second corner portions 1262 of the plurality of corner redundant pixels 126 along the second direction Y may be increased.

[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 dimension of the first corner portion 1261 along the second direction Y is smaller, which mainly improves the uneven thickness of the display pixel 121 at the corner in the display area 100A. The dimension of the second lateral redundant pixel 123 along the second direction Y is larger, which mainly improves the uneven thickness of the plurality of 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 arranged at intervals along the first direction X are provided in a second lateral redundant pixel region 100B2, and a plurality of corner redundant pixels 126 are provided in a corner redundant pixel region 100B5, 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. In this way, the effect of improving the uneven thickness of the display pixel 121 at the corner by the formation process of the corner redundant pixel 126 can match the effect of improving the uneven thickness of the display pixel 121 along the first direction X by the formation process of the second lateral redundant pixel 123.

[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 respectively arranged side by side with the plurality of second lateral redundant pixels 123 in a one-to-one manner along the second direction Y. In this way, 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 are simplified.

[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 may have the same size along the first direction X. In this way, 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 are simplified.

[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 area 100B5 to simplify the formation process of the corner redundant pixel 126.

[0093] In some 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 pixel 126 is greater than the total amount of ink droplets forming the second lateral redundant pixel 123, so that the thickness of at least part of the corner redundant pixel 126 is greater than the thickness of the second lateral redundant pixel 123. The formation process of the corner redundant pixel 126 can better improve the uneven thickness problem of the display pixel 121 at the corner of the display area 100A, and improve the uneven brightness problem of the display pixel 121 at the corner caused by the uneven thickness.

[0095] See also 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] The size of the third lateral redundant pixel region 100B3 along the first direction X is greater than the size of the third lateral redundant pixel region 100B3 along the second direction Y.

[0099] In some embodiments, the display panel 100 further includes a third lateral redundant pixel 124. The third lateral redundant pixel 124 is located in the 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 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 the display pixel 121. In addition, the third lateral redundant pixel region 100B3 is located at the edge of the display region 100A in the second direction Y. After the ink droplets are dried, the edge with uneven film thickness will first be located in the third lateral redundant pixel region 100B3, that is, the third lateral redundant pixel 124 plays a buffering role for the uneven thickness of the display pixel 121 in the display region 100A in the second direction Y. Therefore, the third lateral redundant pixel 124 cooperates with the first lateral redundant pixel 122 to play a buffering role for the uneven thickness of the display pixel 121 along the first direction X and the second direction Y, thereby improving the problem of uneven display brightness caused by 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 advantageously the same as that of the display pixel 121 .

[0101] In some embodiments, when the shape of the third lateral redundant pixel 124 is the same as that of the display pixel 121, the size of the third lateral redundant pixel 124 along the first direction X is equal to the size of the display pixel 121 along the first direction X, and the size of the third lateral redundant pixel 124 along the second direction Y is equal to the size of the display pixel 121 along the second direction Y. In this way, the area of ​​the third lateral redundant pixel 124 is the same as that of the 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 , and after removing the solvent film in the ink droplets, the thickness of the third lateral redundant pixel 124 is equal to the thickness of 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 one of the first lateral redundant pixel regions 100B1 is M, the number of the third lateral redundant pixels 124 along the second direction Y in one of the third lateral redundant pixel regions 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., the first display pixel row 121A to the 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 the different display pixel rows 121A is 3, 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 3. The number of the first lateral redundant pixels 122 in the first lateral redundant pixel area 100B1 along the first direction X is usually 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 meet the requirements of the buffering effect of the third lateral redundant pixels 124 by the plurality of 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 the number of third lateral redundant pixels 124 outside the display area 100A that are similar to the display pixels 121 is appropriate. In this way, while a portion of the third lateral redundant pixels 124 is reserved to play a buffering role in the second direction Y, the space occupied by the third lateral redundant pixel area 100B3 in the second direction Y is reduced, providing a 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 arranged at intervals with the plurality of display pixel rows 121A. One redundant pixel row includes at least two third lateral redundant pixels 124 arranged at intervals along the first direction X and including the same material. The third lateral redundant pixel 124 and at least two display pixels 121 in at least one display pixel row 121A include the same material. In this way, by providing the third lateral redundant pixel 124 in the redundant pixel row, a buffering effect is played on the 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 display pixel row 121A to the third display pixel row 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 the same as the first display pixel 121. The second redundant pixel row includes a second type of redundant pixels, which are the same as the second display pixel 121. The third redundant pixel row includes a third type of redundant pixels, which are the same as the third display pixel 121. The arrangement directions of the first redundant pixel row, the second redundant pixel row, and the third redundant pixel row are the same as the arrangement of the first display pixel row 121A to the third display pixel row 121A.

[0107] In some embodiments, 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 also Figure 1 As shown, the fourth lateral redundant pixel region 100B4 is located at least one side of the display region 100A in the second direction Y and is adjacent to the corner redundant pixel region 100B5. In the second direction Y, the third lateral redundant pixel region 100B3 is located between the fourth lateral redundant pixel region 100B4 and the display region 100A. In this way, 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. The size of the fourth lateral redundant pixel region 100B4 along the first direction X is greater than the size 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 also Figures 2 to 5 As shown, the display panel 100 further includes a fourth lateral redundant pixel 125. The fourth lateral redundant pixel 125 is located in the fourth lateral redundant pixel area 100B4. The thickness of the fourth lateral redundant pixel 125 is greater than or equal to the thickness of the third lateral redundant pixel 124 and at least one display pixel 121. Therefore, the total amount of ink droplets required to form the fourth lateral redundant pixel 125 is greater than or equal to the total amount of ink droplets required to form the third lateral redundant pixel 124 and the display pixel 121. A large amount of solvent in the ink droplets forming the fourth lateral redundant pixel 125 provides a solvent atmosphere for the drying process of the ink droplets in the fourth lateral redundant pixel area 100B4, reducing the volatilization rate of the solvent in the fourth lateral redundant pixel area 100B4. The volatilization rate of the solvent in the fourth lateral redundant pixel area 100B4 located on the outside tends to be the same as the volatilization rate of the solvent in the display area 100A located on the inside, reducing the risk of ink flowing from the display area 100A to the fourth lateral redundant pixel area 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 beneficial 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 the 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 pixel 125 extends along the first direction X, and the size of the fourth lateral redundant pixel 125 along the first direction X is greater than the size of the fourth lateral redundant pixel 125 along the second direction Y. In this way, while fully utilizing the space in the first direction X to increase the area of ​​the fourth lateral redundant pixel 125, the size of the fourth lateral redundant pixel 125 along the second direction Y can also be reduced, thereby reducing the frame of the display panel 100 along the second direction Y.

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

[0116] Optionally, the ratio of the dimension XC2 of the fourth lateral redundant pixel 125 along the first direction X to the 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 two ends of the fourth lateral redundant pixel 125 adjacent to two corner redundant pixel regions 100B5 respectively. Figure 1 As shown, the size XC2 of the fourth lateral redundant pixel 125 along the first direction X is equal to the size of the fourth lateral redundant pixel area 100B4 along the first direction X. The size of the fourth lateral redundant pixel 125 along the first direction X is larger, so that the area of ​​the fourth lateral redundant pixel 125 is larger. The total amount of ink droplets required to form the fourth lateral redundant pixel 125 is larger, and the problem of uneven thickness of the display pixels 121 of the display area 100A due to the flow of ink from the display area 100A to the non-display area 100B along the second direction Y is better improved, which is conducive to reducing the size of the non-display area 100B along the second direction Y, thereby reducing the frame of the display panel 100 in the second direction Y.

[0118] In some embodiments, the fourth lateral redundant pixel 125 is in a strip shape, which can make full use of the lateral space of the display area 100A and simplify the formation of the fourth lateral redundant pixel 125 .

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

[0120] Optionally, in a fourth lateral redundant pixel region 100B4, the number of fourth lateral redundant pixels 125 arranged at intervals along the second direction Y is greater than or equal to 1 and less than or equal to 6. In this way, the number of fourth lateral redundant pixels 125 in the fourth lateral redundant pixel region 100B4 is appropriate, and the size of the non-display region 100B along the second direction Y is reduced. Meanwhile, the formation process of the fourth lateral redundant pixels 125 can improve the uneven thickness problem 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 arranged in a fourth lateral redundant pixel area 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 area 100B4 is provided with a plurality of fourth lateral redundant pixels 125, along the direction away from the display area 100A, the sizes of at least two fourth lateral redundant pixels 125 along the second direction Y gradually change. For example, along the direction away from the display area 100A, the sizes of at least two fourth lateral redundant pixels 125 along the second direction Y gradually decrease.

[0125] In some embodiments, see Figure 2 , Figure 3 as well as Figure 5 As shown, when a fourth lateral redundant pixel area 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 , sizes of at least two fourth lateral redundant pixels 125 along the first direction X are different.

[0127] In one exemplary embodiment, see Figure 4As shown, the plurality of fourth lateral redundant pixels 125 include a first strip redundant pixel 125A and a second strip redundant pixel 125B. The first strip redundant pixel 125A is located between the second strip redundant pixel 125B and the third lateral redundant pixel area 100B3 and between the corner redundant pixel 126 and the third lateral redundant pixel area 100B3. The size of the second strip redundant pixel 125B along the first direction X is greater than the size of the first strip redundant pixel 125A along the first direction X. In this way, the area of ​​the first strip redundant pixel 125A close to the display area 100A can be larger, the total amount of ink droplets forming the first strip redundant pixel 125A is larger, and the problem of uneven thickness of the display pixel 121 along the second direction Y is better improved, which is conducive to reducing the size of the fourth lateral redundant pixel area 100B4 along the second direction Y and reducing 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 pixel 125A may be greater than the thickness of the second strip-shaped redundant pixel 125B to accommodate the film thickness after the ink droplets are dried when the total amount of ink droplets forming the first strip-shaped redundant pixel 125A is greater than the total amount of ink droplets forming the second strip-shaped redundant pixel 125B. When the total amount of ink droplets of the first strip-shaped redundant pixel 125A is greater than the total amount of ink droplets forming the second strip-shaped redundant pixel 125B, the problem of uneven thickness of the display pixel 121 along the second direction Y can be better improved.

[0129] In some embodiments, see Figure 2 and Figure 3 As shown, when a plurality of corner redundant pixels 126 are disposed in a corner redundant pixel area 100B5 and the 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. In this way, the design and formation process of the corner redundant pixel 126 and the fourth lateral redundant pixel 125 are simplified.

[0130] In some embodiments, when a plurality of corner redundant pixels 126 are disposed in a corner redundant pixel area 100B5 and the corner redundant pixel 126 includes a second corner portion 1262 extending along the first direction X, the size of one of the fourth lateral redundant pixels 125 along the second direction Y is equal to the size of one of the second corner portions 1262 along the second direction Y. In this way, the design and formation process of the corner redundant pixels 126 and the fourth lateral redundant pixels 125 are simplified.

[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 pixel 126 includes a second corner portion 1262 extending along the 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 small, which mainly improves the uneven thickness of the display pixels 121 at the corners in the display area 100A. The dimension of the fourth lateral redundant pixel 125 along the second direction Y is large, which mainly improves the uneven thickness of the plurality of 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. In this way, the total amount of ink droplets forming the fourth lateral redundant pixel 125 can be greater than or equal to the total amount of ink droplets forming the second lateral redundant pixel 123, ensuring that the improvement effect of the fourth lateral redundant pixel 125 on the uneven thickness of the display pixel 121 along the second direction Y is not inferior to the improvement effect of the second lateral redundant pixel 123 on the uneven thickness of the display pixel 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 may 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 is conducive to making 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. In this way, 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 problem of the display pixels 121 located at the corners in the display area 100A.

[0135] It should be noted that the display pixel 121, the first lateral redundant pixel 122 to the fourth lateral redundant pixel 125, and the corner redundant pixel 126 may all include organic light-emitting materials, but are not limited thereto. The organic light-emitting material includes at least one of a red light organic light-emitting material, a green light organic light-emitting material, and a blue light organic light-emitting material. The display pixel 121 and the redundant pixel may be obtained by spraying ink droplets and then removing the solvent in the ink droplets. Spraying includes 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 lateral redundant pixels 122 to the fourth lateral redundant pixels 125 and the corner redundant pixels 126 can flexibly adjust the design of the non-display area 100B, so as to better improve the problem of uneven thickness of the display pixels 121 in the display area 100A and reduce 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. A plurality of display pixels 121 are respectively located in the plurality of display area openings 131A.

[0138] The pixel definition layer 13 further includes a first lateral redundant pixel opening 132A, which is located in the first lateral redundant pixel region 100B1. One first lateral redundant pixel 122 is located in one first lateral redundant pixel opening 132A. When the first lateral redundant pixel 122 is the same as the display pixel 121, the first lateral redundant pixel opening 132A is the same as the display region opening 131A, that is, the shapes and sizes of the two are the same.

[0139] In some embodiments, the pixel definition layer 13 further includes a first lateral dam 132, and the first lateral dam 132 surrounds the first lateral redundant pixel opening 132A. The thickness of the first lateral dam 132 is equal to the thickness of the display area dam 131. In this way, the first lateral dam 132 and the display area dam 131 can be formed by the same process, simplifying the manufacturing process of the display panel 100. In addition, the structure around the first lateral redundant pixel opening 132A is the same as that around the display area opening 131A, and the first lateral redundant pixel 122 can better play a buffering role during its formation process.

[0140] The pixel definition layer 13 further includes a second lateral redundant pixel opening 133A, and the second lateral redundant pixel opening 133A is located in the second lateral redundant pixel region 100B2. One second lateral redundant pixel 123 is located in one second lateral redundant pixel opening 133A. In some embodiments, when the second lateral redundant pixel 123 extends along the second direction Y and is in a strip shape, the second lateral redundant pixel opening 133A also extends along the second direction Y and is in a 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 display area dam 131. In this way, the risk of ink droplets in the display area 100A flowing into the second lateral redundant pixel opening 133A is reduced, and the thickness uniformity of the display pixels 121 in the display area 100A along the first direction X is improved.

[0142] The pixel definition layer 13 further includes a third lateral redundant pixel opening (not shown in the figure), and the third lateral redundant pixel opening is located in the third lateral redundant pixel area 100B3. A third lateral redundant pixel 124 is located in a third lateral redundant pixel opening. In some embodiments, when the third lateral redundant pixel 124 is the same as the display pixel 121, the third lateral redundant pixel opening is the same as the display area opening 131A, that is, the shapes and sizes of the two are the same.

[0143] In some embodiments, the pixel definition layer 13 further includes a third lateral dam (not shown in the figure), and the third lateral dam surrounds the third lateral redundant pixel opening. The thickness of the third lateral dam is equal to the thickness of the display area dam 131. In this way, the third lateral dam and the display area dam 131 can be formed by the same process, simplifying the manufacturing process of the display panel 100. In addition, the structure around the third lateral redundant pixel opening is the same as that around the display area opening 131A, and the third lateral redundant pixel 124 can better play a buffering role during its formation.

[0144] The pixel definition layer 13 further includes a fourth lateral redundant pixel opening (not shown in the figure), and the fourth lateral redundant pixel opening is located in the fourth lateral redundant pixel region 100B4. A fourth lateral redundant pixel 125 is located in a fourth lateral redundant pixel opening. In some embodiments, when the fourth lateral redundant pixel 125 extends along the first direction X and is in a long strip shape, the fourth lateral redundant pixel opening also extends along the first direction X and is in a long strip shape.

[0145] In some embodiments, the pixel definition layer 13 further includes a fourth lateral dam (not shown in the figure). 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 display area dam 131. In this way, the risk of ink droplets in the display area 100A flowing into the fourth lateral redundant pixel opening is reduced, and the thickness uniformity of the display pixels 121 in the display area 100A along the second direction Y is improved.

[0146] The pixel definition layer 13 further includes a corner redundant pixel opening (not shown in the figure), which is located in the corner redundant pixel area 100B5. A corner redundant pixel 126 is located in a 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 in the first corner redundant pixel opening. The second corner portion 1262 is located in the second corner redundant pixel opening. In other words, when the corner redundant pixel 126 is L-shaped, the corner redundant pixel opening is also L-shaped.

[0148] The pixel definition layer 13 further includes a corner dam (not shown in the figure), which is arranged around the corner redundant pixel opening. The thickness of the corner dam is greater than or equal to the display area dam 131. In this way, the risk of ink droplets in the display area 100A flowing into the corner redundant pixel opening is reduced, and the thickness uniformity of the display pixels 121 at the corners in the display area 100A is improved.

[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 anode 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 a display pixel 121, a first lateral redundant pixel 122, and a third lateral redundant pixel 124. Figure 7 (B) is a schematic diagram of printing ink droplets when forming the second lateral redundant pixel 123, Figure 7 (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 a corner redundant pixel 126.

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

[0153] Therefore, it can be seen that the embodiment of the present application optimizes the design of the first lateral redundant pixels 122 to the fourth lateral redundant pixels 125 and the corner redundant pixels 126 to improve the uneven thickness problem of the display pixels 121, especially to improve the uneven thickness problem of the display pixels 121 at the corners in the display area, so as to improve the uneven display brightness problem caused by the uneven thickness and realize the narrow frame design of the display panel.

[0154] Based on the same inventive concept, the present application also 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 as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0156] In the above embodiments, the description of each embodiment has its own emphasis. 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 only 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, wherein the non-display area includes a first lateral redundant pixel area, a second lateral redundant pixel area, and a corner redundant pixel area, wherein the second lateral redundant pixel area is located on at least one side of the display area in a first direction, the first lateral redundant pixel area is located between the second lateral redundant pixel area and the display area, and the corner redundant pixel area is located at a corner of the non-display area and is 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, characterized in that: The corner redundant pixel comprises 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 at one side of the display area in the first direction, the first lateral redundant pixel is located between the first corner portion and the display area in the first direction, and the first corner portion is adjacent to the second lateral redundant pixel in the second direction; The second corner portion extends along the first direction and is located at one side of the display area in the second direction.

3. The display panel according to claim 2, characterized in that: 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, characterized in that: 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, characterized in that: A plurality of the corner redundant pixels are arranged 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, characterized in that: A plurality of second lateral redundant pixels arranged at intervals along the first direction are arranged 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, characterized in that: The first corner parts 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, characterized in that: 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 of the second lateral redundant pixel regions.

10. The display panel according to claim 1, characterized in that: The thickness of at least part of the corner redundant pixels is greater than the thickness of the second lateral redundant pixels.

11. The display panel according to claim 2, characterized in that: 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, wherein the third lateral redundant pixel is located in the third lateral redundant pixel region, and an area of ​​at least one of the third lateral redundant pixels is the same as an area of ​​at least one of the display pixels; the fourth lateral redundant pixel is located in the fourth lateral redundant pixel region, and a thickness of the fourth lateral redundant pixel is greater than or equal to a thickness of the third lateral redundant pixel and the display pixel.

12. The display panel according to claim 11, characterized in that: One of the fourth lateral redundant pixels extends along the first direction to two ends of the fourth lateral redundant pixel and is respectively adjacent to two of the corner redundant pixel regions, and 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, characterized in that: A plurality of the corner redundant pixels are disposed 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, characterized in that: The plurality of fourth lateral redundant pixels include a first strip redundant pixel and a second strip redundant pixel, the first strip redundant pixel is located between the second strip redundant pixel and the third lateral redundant pixel area and between the corner redundant pixel and the third lateral redundant pixel area, and the size of the second strip redundant pixel along the first direction is greater than the size of the first strip redundant pixel along the first direction.

15. The display panel according to claim 11, characterized in that: 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, characterized in that: The size of one of the fourth lateral redundant pixels along the second direction is equal to the size of one of the second corner portions along the second direction.

17. The display panel according to claim 11, characterized in that: 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, characterized in that: 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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