Display panel, display device, and mask assembly

Abstract

The present application provides a display panel, a display device, and a mask assembly. The display panel includes a plurality of light-emitting units arranged in an array on a light-emitting device layer. Each light-emitting unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel arranged along a first direction. At least a part of the third sub-pixel extends at a preset angle with respect to the first direction; or, at least a part of the first sub-pixel and at least a part of the second sub-pixel extend at a preset angle with respect to the first direction; or, at least a part of the first sub-pixel, at least a part of the second sub-pixel, and at least a part of the third sub-pixel extend at a preset angle with respect to the first direction. By setting at least a part of the sub-pixels to extend at a preset angle with respect to the first direction, the present application can reduce the difference between the pixel width D1 and the BM OUT value in the horizontal and vertical directions, improve the color deviation uniformity of the display panel, and enhance the display effect of the display panel.

Description

Technical Field

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

[0002] OLED display panels have been widely used in the display field due to characteristics such as self-luminescence, low power consumption, and rollability. However, due to the difference in the widths of pixels in the horizontal and vertical directions, the attenuation rates of the viewing angle brightness of monochromatic light in the horizontal and vertical directions are different, resulting in different color offsets in the horizontal and vertical directions of the OLED display panel. Summary of the Invention

[0003] In view of this, the present application provides a display panel, a display device, and a mask assembly.

[0004] The display panel according to an embodiment of the present application includes a plurality of light-emitting units arranged in an array on a light-emitting device layer. Each of the light-emitting units includes a first sub-pixel, a second sub-pixel, and a third sub-pixel arranged along a first direction. At least a part of the third sub-pixel extends in a direction that forms a preset angle with the first direction; or

[0005] At least a part of the first sub-pixel and at least a part of the second sub-pixel extend in a direction that forms a preset angle with the first direction; or

[0006] At least a part of the first sub-pixel, at least a part of the second sub-pixel, and at least a part of the third sub-pixel extend in a direction that forms a preset angle with the first direction.

[0007] In some embodiments, the preset angle is 45° and / or 135°.

[0008] In some embodiments, when at least a part of the third sub-pixel extends in a direction that forms a preset angle with the first direction, the third sub-pixel includes at least one third extension portion, and the extension direction of the third extension portion forms a preset angle with the first direction.

[0009] In some embodiments, at least a part of the third sub-pixel extends in a direction that forms a preset angle with the first direction. The third sub-pixel includes a third main body portion and a third extension portion. The third extension portion extends outward from the third main body portion, and the extension direction of the third extension portion forms a preset angle with the first direction.

[0010] In some embodiments, the third sub-pixel is symmetrically arranged with respect to a straight line passing through the geometric center of the third sub-pixel and parallel to the first direction.

[0011] In some embodiments, the first sub-pixel is a green sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a red sub-pixel. Each light-emitting unit includes two of the first sub-pixels, one of the second sub-pixels, and one of the third sub-pixels. The two first sub-pixels are arranged in a second direction perpendicular to the first direction.

[0012] In some embodiments, the first sub-pixel is pentagonal or heptagonal, and the second sub-pixel is hexagonal or octagonal.

[0013] In some embodiments, when at least a part of the first sub-pixel and at least a part of the second sub-pixel extend in a direction at a preset angle to the first direction,

[0014] the first sub-pixel includes two first extension parts, and the extension direction of the first extension part is at a preset angle to the first direction;

[0015] the second sub-pixel includes two second extension parts, and the extension direction of the second extension part is at a preset angle to the first direction. The first sub-pixel and the second sub-pixel surround and are arranged around the third sub-pixel.

[0016] In some embodiments, when at least a part of the first sub-pixel and at least a part of the second sub-pixel extend in a direction at a preset angle to the first direction,

[0017] the first sub-pixel includes one first extension part, and the extension direction of the first extension part is at a preset angle to the first direction;

[0018] the second sub-pixel includes one second main body part and two second extension parts, and the extension direction of the second extension part is at a preset angle to the first direction. The first sub-pixel and the second sub-pixel surround and are arranged around the third sub-pixel.

[0019] In some embodiments, the third sub-pixel is rhombic.

[0020] In some embodiments, when at least a part of the first sub-pixel, at least a part of the second sub-pixel, and at least a part of the third sub-pixel extend in a direction at a preset angle to the first direction;

[0021] the first sub-pixel includes one first main body part and two first extension parts, and the first extension parts extend outward from the first main body part. The extension direction of the first extension part is at a preset angle to the first direction;

[0022] The second sub-pixel includes a second main body portion and two second extension portions, the second extension portions extending outward from the second main body portion, and the extending direction of the second extension portions forms a preset angle with the first direction;

[0023] The third sub-pixel includes three third extension portions, and the extending direction of the third extension portions forms a preset angle with the first direction;

[0024] The first sub-pixel and the second sub-pixel enclose and are arranged around the third sub-pixel.

[0025] In some embodiments, when at least a part of the first sub-pixel, at least a part of the second sub-pixel, and at least a part of the third sub-pixel have an extending direction that forms a preset angle with the first direction;

[0026] The first sub-pixel includes a first extension portion, and the extending direction of the first extension portion forms a preset angle with the first direction;

[0027] The second sub-pixel includes two second main body portions and three second extension portions, the second extension portions extending outward from the second main body portions, and the extending direction of the second extension portions forms a preset angle with the first direction;

[0028] The third sub-pixel includes three third extension portions, and the extending direction of the third extension portions forms a preset angle with the first direction;

[0029] The first sub-pixel and the second sub-pixel enclose and are arranged around the third sub-pixel.

[0030] In some embodiments, the display panel includes a color filter layer disposed on the light-emitting side of the light-emitting device layer, the color filter layer including a plurality of color filter units corresponding to the light-emitting units, and each color filter unit including a first color filter corresponding to the first sub-pixel, a second color filter corresponding to the second sub-pixel, and a third color filter corresponding to the third sub-pixel.

[0031] In some embodiments, the color filter layer includes a BM region, the BM region including a first opening corresponding to the first color filter, a second opening corresponding to the second color filter, and a third opening corresponding to the third color filter, the distances from the respective sides of the first sub-pixel to the corresponding boundaries of the first opening being the same, the distances from the respective sides of the second sub-pixel to the corresponding boundaries of the second opening being equal, and the distances from the respective sides of the third sub-pixel to the corresponding boundaries of the third opening being equal.

[0032] In some embodiments, the distances from the respective sides of the first sub-pixel to the corresponding boundaries of the first opening are equal to the distances from the respective sides of the second sub-pixel to the corresponding boundaries of the second opening and are equal to the distances from the respective sides of the third sub-pixel to the corresponding boundaries of the third opening.

[0033] A display device according to an embodiment of the present application, the display device including the above-mentioned display panel.

[0034] A mask assembly according to an embodiment of the present application is used to manufacture the above-mentioned display panel. The mask assembly includes:

[0035] A first mask plate, the first mask plate including a first substrate and a first opening area formed in the first substrate, the first opening area corresponding to the first sub-pixel;

[0036] A second mask plate, the second mask plate including a second substrate and a second opening area formed in the second substrate, the second opening area corresponding to the second sub-pixel; and

[0037] A third mask plate, the third mask plate including a third substrate and a third opening area formed in the third substrate, the third opening area corresponding to the third sub-pixel.

[0038] In the display panel, display device, and mask assembly of the present application, by providing that each light-emitting unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel arranged along a first direction, at least a part of the third sub-pixel extends at a preset angle with respect to the first direction, or at least a part of the first sub-pixel and at least a part of the second sub-pixel extend at a preset angle with respect to the first direction, or at least a part of the first sub-pixel, at least a part of the second sub-pixel, and at least a part of the third sub-pixel extend at a preset angle with respect to the first direction. In this way, the difference between the pixel width D1 and the BM OUT value in the horizontal and vertical directions can be reduced, effectively improving the color deviation uniformity in the horizontal and vertical directions of the device and enhancing the display effect of the display panel.

[0039] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0041] Figure 1 is a cross-sectional schematic view of a display panel according to an embodiment of the present application.

[0042] Figures 2-3 It is a plan view of the display panel according to an embodiment of the present application.

[0043] Figures 4-8 It is a plan view of the light-emitting unit according to an embodiment of the present application.

[0044] Figures 9-10 It is a plan view of the display panel according to an embodiment of the present application.

[0045] Figures 11-16 It is a plan view of the light-emitting unit according to an embodiment of the present application.

[0046] Main element symbol description:

[0047] Display device 100, display panel 10, light-emitting unit 12, first sub-pixel 122, first main body 1221, first extension 1222, second sub-pixel 124, second main body 1241, second extension 1242, third sub-pixel 126, third main body 1261, third extension 1262;

[0048] Light-emitting device layer 110, color filter layer 130, color filter unit 132, BM region 134;

[0049] First direction X, preset angle A. Detailed implementation manners

[0050] The following details the embodiments of the present application. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0051] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for facilitating the description of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0052] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0053] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0054] Currently, OLED display panels have been widely used in the display field due to characteristics such as self-luminescence, low power consumption, and rollability. Due to the need to reduce power consumption and have good rollability characteristics, many structures have adopted a color filter on encapsulation (COE) structure that uses a color film (CF) and a black matrix (BM) instead of a polarizer to perform a light filtering function. Among them, the main function of the black matrix BM is to reduce the reflectivity of the light-emitting device.

[0055] However, in devices with a COE structure, color shifts in the horizontal and vertical directions may occur. As shown in the attached Figure 1 figure, on the premise that the thickness of the light-emitting device remains unchanged, the light output of the light-emitting device is affected by the black matrix BM (mainly affected by the width D1 of the pixel and the distance BM OUT value D2 between the black matrix opening boundary and the pixel opening boundary). The degree of influence is negatively correlated with both the pixel width D1 and the BM OUT value D2. When D2 is the same, the difference in pixel widths in the horizontal and vertical directions will cause a difference in the degree of influence of the black matrix BM on the light output of the device, thereby affecting the viewing angle brightness decay curve L-decay of monochromatic light (L-decay refers to the curve of the light output brightness of the light-emitting device decaying as the viewing angle increases), and ultimately presenting a difference in the color shift direction of white light. The greater the difference in pixel widths in the horizontal and vertical directions, the greater the final difference.

[0056] In the related art, the BM OUT value is increased in the direction with a small pixel width D1 to reduce the influence of the black matrix BM on the L-decay of monochromatic light. However, this solution will cause an increase in the reflectivity of the light-emitting device. Therefore, there is an urgent need for a solution to improve the color shift uniformity in the horizontal and vertical directions of the light-emitting device without changing the BM.OUT value.

[0057] In view of this, please refer to Figure 1 and Figure 2 This application provides a display panel 10, which includes a plurality of light-emitting units 12 arranged in an array on a light-emitting device layer 110. Each light-emitting unit 12 includes a first sub-pixel 122, a second sub-pixel 124, and a third sub-pixel 126 arranged along a first direction X. At least a part of the third sub-pixel 126 extends at a preset angle A with respect to the first direction X; alternatively, at least a part of the first sub-pixel 122 and at least a part of the second sub-pixel 126 extend at a preset angle with respect to the first direction; or at least a part of the first sub-pixel 122, at least a part of the second sub-pixel 124, and at least a part of the third sub-pixel 126 extend at a preset angle with respect to the first direction.

[0058] In the display panel 10 of this application, each light-emitting unit 12 includes a first sub-pixel 122, a second sub-pixel 124, and a third sub-pixel 126 arranged along a first direction X. At least a part of the third sub-pixel 126 extends at a preset angle A with respect to the first direction X, or at least a part of the first sub-pixel 122 and at least a part of the second sub-pixel 126 extend at a preset angle A with respect to the first direction; or at least a part of the first sub-pixel 122, at least a part of the second sub-pixel 124, and at least a part of the third sub-pixel 126 extend at a preset angle A with respect to the first direction; or at least a part of the first sub-pixel 122 is arranged in this way. In this way, the difference between the pixel width D1 and the BM OUT value in the horizontal and vertical directions can be reduced, thereby effectively improving the color shift uniformity of the light-emitting unit 12 in the horizontal and vertical directions and enhancing the display effect of the display panel 10.

[0059] Specifically, the display panel 10 may be an Organic Light-Emitting Diode (OLED) display panel 10. The display panel 10 uses organic light-emitting diodes for display, which can achieve self-luminescence and can customize the driving of pixel points. Without a backlight, the display function can be realized, and it has the advantages of being thin and light, low energy consumption, high brightness, and good luminous efficiency.

[0060] It should be noted that the light-emitting unit 12 refers to the smallest repeating unit in the display panel 10 that can achieve the same light-emitting effect and function. The multiple light-emitting units 12 are arranged in an array, which means that the centers of the multiple light-emitting units 12 are staggered along at least two directions to form an array. In particular, the multiple light-emitting units 12 can be staggered along two mutually perpendicular directions to form an array arrangement. At this time, the two mutually perpendicular directions can be the row extension direction and the column extension direction of the light-emitting unit 12 respectively. The light-emitting units 12 arranged along the row extension direction form pixel rows, and the light-emitting units 12 arranged along the column extension direction form pixel columns. Among them, the rows and columns in which the light-emitting units 12 are arranged in the display panel 10 are relative. In this embodiment, the light-emitting units 12 arranged in rows can be the light-emitting units 12 arranged in columns in other embodiments, which will not be elaborated in detail here.

[0061] It should also be noted that the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are arranged along the first direction, which means that the geometric centers of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are arranged along the first direction. And, the specific arrangement order of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 is not limited. For example, please refer to Figures 2-10 , in some embodiments, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 in each light-emitting unit 12 are arranged in sequence along the first direction. Again, for example, please refer to Figure 11 and Figure 12 , in some embodiments, the second sub-pixel 124, the third sub-pixel 126, and the first sub-pixel 122 in each light-emitting unit 12 are arranged in sequence along the first direction. For another example, please refer to Figure 15 and Figure 16 , in some embodiments, the first sub-pixel 122, the third sub-pixel 126, and the second sub-pixel 124 are arranged in sequence along the first direction.

[0062] In this embodiment, the first direction X can be the row direction, that is, the row extension direction of the light-emitting unit 12, and the second direction can be the column direction, that is, the column extension direction of the light-emitting unit 12. Of course, in other embodiments, the first direction X can also be the column direction, that is, the column extension direction of the light-emitting unit 12, and the second direction can be the row direction, that is, the row extension direction of the light-emitting unit 12.

[0063] Please refer to Figure 2 and Figure 9, in some embodiments, among adjacent rows of light-emitting units, the light-emitting units 12 are located in a straight line in the second direction. Correspondingly, among the light-emitting units 12 in the same column, the first sub-pixels 122 are arranged in a straight line in the second direction to form a first sub-pixel column, the second sub-pixels 124 are arranged in a straight line in the second direction to form a second sub-pixel column, and the third sub-pixels 126 are arranged in a straight line in the second direction to form a third sub-pixel column.

[0064] Please refer to Figure 3 and Figure 10 , in some embodiments, among adjacent rows of light-emitting units, the first sub-pixels 122, the second sub-pixels 124, and the third sub-pixels 126 in the light-emitting units 12 are arranged with a dislocation in the second direction (column direction).

[0065] It should be noted that the dislocation arrangement means that the centers of the sub-pixels in adjacent rows are not on the same straight line in the second direction.

[0066] The preset angle A can be either an acute angle or an obtuse angle. When the preset angle A is an acute angle, the range of the preset angle A can be between 30° and 60°. For example, the preset angle A can be 30°, 35°, 40°, 45°, 50°, 55°, or 60°. When the preset angle A is an obtuse angle, the range of the preset angle A can be between 120° and 150°. For example, the preset angle A can be 120°, 125°, 130°, 135°, 140°, 145°, or 150°. Of course, it can be understood that the above values of the preset angle A are only for illustrative purposes and do not limit the specific values of the preset angle A. For example, in other embodiments, the preset angle A can also be other acute or obtuse angle values.

[0067] Furthermore, in some embodiments, the size of the preset angle A is 45° or 135°. For example, in some embodiments, the included angle between the extending direction of the third sub-pixel 126 and the first direction X is 45°. In other embodiments, the included angle between the extending direction of the third sub-pixel 126 and the first direction X is 135°. It can be understood that when the included angle between the extending direction of the third sub-pixel 126 and the first direction X is 45° or 135°, the width and BM OUT value of the third sub-pixel 126 in the horizontal direction are the same as the width and BM OUT value of the third sub-pixel 126 in the vertical direction. Thus, the color shift uniformity in the horizontal and vertical directions of the device is effectively improved, and further, the display effect of the display panel 10 is enhanced.

[0068] The first sub-pixel 122 is in the shape of a quadrilateral, pentagon, hexagon, heptagon, octagon, or even more other regular or irregular polygonal shapes. For example, referring to Figure 14 , in some examples, the first sub-pixel is in the shape of a quadrilateral. For example, please refer to Figures 2-4, in some examples, the first sub-pixel 122 is pentagonal. For another example, please refer to Figure 13 , the first sub-pixel 122 is hexagonal. Please refer to Figures 8-10 , in some examples, the first sub-pixel 122 is heptagonal. For another example, please refer to Figure 15 , the first sub-pixel 122 is octagonal.

[0069] The second sub-pixel 124 is hexagonal, octagonal or even more other regular or irregular polygonal shapes. For example, referring to Figures 2-7 and Figure 13 , in some examples, the second sub-pixel 124 is hexagonal. For another example, referring to Figures 8-12 , Figure 14 and Figure 15 , in some examples, the second sub-pixel 124 is octagonal.

[0070] The third sub-pixel 126 is quadrilateral, hexagonal, octagonal, decagonal, dodecagonal or even more other regular or irregular polygonal shapes. For example, please refer to Figures 13-14 , in some examples, the third sub-pixel 126 of each light-emitting unit 12 is rhombic. For example, please refer to Figures 2-4 , in some examples, the third sub-pixel 126 of each light-emitting unit 12 is hexagonal. For another example, please refer to Figures 5-10 and Figure 15 , in some examples, the third sub-pixel 126 of each light-emitting unit 12 is octagonal. For another example, please refer to Figure 11 , in some examples, the third sub-pixel 126 of each light-emitting unit 12 is decagonal. For another example, please refer to Figure 12 , in some examples, the third sub-pixel 126 of each light-emitting unit 12 is dodecagonal.

[0071] Furthermore, the specific shapes and arrangements of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 in each light-emitting unit 12 are not limited and can be set according to specific products.

[0072] For example, please refer to Figure 7 , in some embodiments, the first sub-pixel 122 of each light-emitting unit 12 is heptagonal, the second sub-pixel 124 is hexagonal, and the third sub-pixel 126 is octagonal. It can be understood that with the third sub-pixel 126 being octagonal and the first sub-pixel 122 being heptagonal, the first sub-pixel 122 can be cooperatively arranged with the third sub-pixel 126, so that the approach degree of L-decay in the horizontal and vertical directions is higher. Thus, the color shift uniformity of the display panel 10 in the horizontal and vertical directions is further improved.

[0073] For example, please refer to Figure 8, in some embodiments, the first sub-pixel 122 of each light-emitting unit 12 is pentagonal, the second sub-pixel 124 is octagonal, and the third sub-pixel 126 is octagonal. It can be understood that since the third sub-pixel 126 is an octagon in a polygonal shape, and the second sub-pixel 124 is octagonal, the second sub-pixel 124 and the third sub-pixel 126 of adjacent light-emitting units 12 are cooperatively arranged. Thus, the light-emitting units 12 are arranged more compactly, and the proximity of L-decay in the horizontal and vertical directions is higher. In this way, the color shift uniformity of the display panel 10 in the horizontal and vertical directions is further improved.

[0074] For example, please refer to Figures 9-10 , in some embodiments, the first sub-pixel 122 in each light-emitting unit 12 is heptagonal, the second sub-pixel 124 is octagonal, and the third sub-pixel 126 is octagonal. It can be understood that the third sub-pixel 126 is an octagon in a polygonal shape, the first sub-pixel 122 is heptagonal, and the second sub-pixel 124 is octagonal. The first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 in the light-emitting unit 12 can be cooperatively arranged, so that the proximity of L-decay in the horizontal and vertical directions is higher, and the color shift uniformity of the display panel 10 in the horizontal and vertical directions is further improved.

[0075] For example, please refer to Figure 12 , in some embodiments, the first sub-pixel 122 in each light-emitting unit 12 is heptagonal, the second sub-pixel 124 is octagonal, and the third sub-pixel 126 is dodecagonal. It can be understood that the third sub-pixel 126 is an octagon in a polygonal shape, the first sub-pixel 122 is heptagonal, and the second sub-pixel 124 is dodecagonal. The first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 in the light-emitting unit 12 can be cooperatively arranged, so that the proximity of L-decay in the horizontal and vertical directions is higher, and the color shift uniformity of the display panel 10 in the horizontal and vertical directions is further improved.

[0076] In certain embodiments, when the extending direction of the third sub-pixel 126 forms a preset angle A with the first direction, the third sub-pixel 126 includes at least one third extension portion 1262, and the extending direction of the third extension portion 1262 forms the preset angle A with the first direction.

[0077] For example, please refer to Figures 5-8 , in some examples, the third sub-pixel 126 is in a polygonal shape, and the third sub-pixel 126 is axially symmetrically arranged with respect to a straight line passing through the geometric center of the third sub-pixel 126 and parallel to the first direction.

[0078] Specifically, there may be two third extension portions 1262, and the two third extension portions 1262 are symmetrically arranged with respect to a straight line passing through the geometric center of the third sub-pixel 126 and parallel to the first direction X. The third extension portions 1262 extend from the geometric center of the third sub-pixel 126 at a preset angle A deviating from the first direction X, and the two third extension portions 1262 form a V shape in the second direction. For example, one of the third extension portions 1262 extends from the geometric center of the third sub-pixel 126 at a preset angle A of 45° deviating from the first direction X, and the other third extension portion 1262 extends from the geometric center of the third sub-pixel 126 at a preset angle A of 135° deviating from the first direction X.

[0079] In this way, in this embodiment, by arranging the third sub-pixel 126 in a zigzag shape, while increasing the area of the third sub-pixel 126, it is also possible to further reduce the difference between the width of the third sub-pixel 126 in the horizontal direction and the BM OUT value and the width of the third sub-pixel 126 in the vertical direction and the BM OUT value, thereby further reducing the difference in the degree of light emission influence, so that the difference in L-decay of the light emitted by the third sub-pixel 126 in the horizontal direction and the vertical direction is small.

[0080] For another example, please refer to Figure 15 , in some examples, the third sub-pixel 126 is in a Z shape, and the third sub-pixel 126 includes a third main body portion 1261 and two third extension portions 1262. One third extension portion 1262 is connected to one end of the third main body portion 1261, and the other third extension portion 1262 is connected to the other end of the third main body portion 1261. The two third extension portions 1262 are at a preset angle A deviating from the first direction X, and the third main body portion 1261 is perpendicular to the third extension portions 1262. Among them, the preset angle A of the third extension portion 1262 extending from the third main body portion 1261 along the first direction X is 45°.

[0081] For another example, please refer to Figure 11 , in some examples, the third sub-pixel 126 includes a third main body portion 1261 and three third extension portions 1262 extending from the third main body portion 1261. The extending directions of two of the third extension portions 1262 form a preset angle A with the first direction, and the other third extension portion 1262 extends along the first direction. Among them, the preset angle A of the third extension portion 1262 extending from the third main body portion 1261 along the first direction X is 45°.

[0082] For another example, please refer to Figure 12, in some examples, the third sub-pixel 126 is in a W shape, and the third sub-pixel 126 is symmetrically arranged with respect to a straight line passing through the geometric center of the third sub-pixel 126 and parallel to the first direction. The third sub-pixel 126 includes two third main parts 1261 and three third extension parts 1262. One second extension part 1242 connects two second main parts 1241, and the other two second extension parts 1242 extend outward from the two second main parts 1241 respectively. The extension directions of the two third extension parts 1262 form a preset angle A with the first direction, and the other third extension part 1262 extends along the first direction.

[0083] Please refer to Figure 13 , in some embodiments, when at least a part of the first sub-pixel 122 and at least a part of the second sub-pixel 124 extend in a direction forming a preset angle A with the first direction, the first sub-pixel 122 includes two first extension parts 1222, and the extension directions of the first extension parts 1222 form a preset angle A with the first direction. The second sub-pixel 124 includes two second extension parts 1242, and the extension directions of the second extension parts 1242 form a preset angle A with the first direction. The first sub-pixel 122 and the second sub-pixel 124 surround and are arranged around the third sub-pixel 126.

[0084] Please refer to Figure 14 , in some embodiments, when at least a part of the first sub-pixel 122 and at least a part of the second sub-pixel 124 extend in a direction forming a preset angle A with the first direction, the first sub-pixel 122 includes one first extension part 1222, and the extension direction of the first extension part 1222 forms a preset angle A with the first direction. The second sub-pixel 124 includes one second main part 1241 and two second extension parts 1242, and the extension directions of the second main part 1241 and the second extension parts 1242 form a preset angle A with the first direction. The first sub-pixel 122 and the second sub-pixel 124 surround and are arranged around the third sub-pixel 126.

[0085] Please refer to Figure 15, in some embodiments, when at least a part of the first sub-pixel 122, at least a part of the second sub-pixel 124, and at least a part of the third sub-pixel 126 extend in a direction that forms a preset angle A with the first direction, the first sub-pixel 122 includes a first main body portion 1221 and two first extension portions 1222. The first extension portions 1222 extend outward from the first main body portion 1221, and the extending direction of the first extension portions 1222 forms a preset angle A with the first direction. The second sub-pixel 124 includes a second main body portion 1241 and two second extension portions 1242. The second extension portions 1242 extend outward from the second main body portion 1241, and the extending direction of the second extension portions 1242 forms a preset angle A with the first direction. The third sub-pixel 126 includes three third extension portions 1262, and the extending direction of the third extension portions 1262 forms a preset angle A with the first direction. The first sub-pixel 122 and the second sub-pixel 124 surround and are arranged around the third sub-pixel 126.

[0086] Please refer to Figure 16 , in some embodiments, when at least a part of the first sub-pixel 122, at least a part of the second sub-pixel 124, and at least a part of the third sub-pixel 126 extend in a direction that forms a preset angle A with the first direction, the first sub-pixel 122 includes a first extension portion 1222, and the extending direction of the first extension portion 1222 forms a preset angle A with the first direction. The second sub-pixel 124 includes two second main body portions 1241 and three second extension portions 1242. The second extension portions 1242 extend outward from the second main body portions 1241, and the extending direction of the second extension portions 1242 forms a preset angle A with the first direction. The third sub-pixel 126 includes three third extension portions 1262, and the extending direction of the third extension portions 1262 forms a preset angle A with the first direction. A sub-pixel and the second sub-pixel 124 surround and are arranged around the third sub-pixel 126.

[0087] In some embodiments, the color of the light emitted by the first sub-pixel 122 is different from the color of the light emitted by the second sub-pixel 124 and the color of the light emitted by the third sub-pixel 126. Further, the light emitted by the sub-pixels in each pixel unit includes red light, green light, and blue light. In this way, the display panel 10 can achieve normal display of a full-color image through the uniform distribution of sub-pixels with different colors.

[0088] In some embodiments, the first sub-pixel 122 is a green sub-pixel, the second sub-pixel 124 is a blue sub-pixel, and the third sub-pixel 126 is a red sub-pixel.

[0089] It should be noted that in the existing light-emitting unit design, the widths of different pixels in the horizontal and vertical directions are different, with the red pixels being the most prominent (the pixel width of the pixels in the horizontal direction is smaller than the pixel width in the vertical direction). The pixel width of the pixels in the horizontal direction being smaller than the pixel width in the vertical direction results in different degrees of influence on the device under the condition of the same BMOUT value, leading to a relatively large difference in the L-decay of the red light in the horizontal and vertical directions. ， Ultimately, it leads to a difference in the white light color deviation direction in the horizontal and vertical directions.

[0090] In this way, in this embodiment, by arranging the red sub-pixels at a preset angle A along the first direction X, the difference in the L-decay of the red light in the horizontal and vertical directions is smaller, and the difference in the white light color deviation direction in the horizontal and vertical directions can be reduced to the greatest extent.

[0091] Of course, in other embodiments, the corresponding relationship of the light-emitting colors of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 may not be limited to the embodiments discussed above, but can be changed according to actual needs, and no specific limitation is made here.

[0092] The area of the blue sub-pixels is larger than the area of the red sub-pixels, and the area of the red sub-pixels is larger than the area of the green sub-pixels. In particular, for an organic light-emitting diode display device, since the blue light-emitting material usually has the lowest luminous efficiency and relatively short lifespan compared with red and green, the area of the blue sub-pixels can be larger than the areas of the red and green sub-pixels. In addition, since the human eye is more sensitive to green and the green light-emitting material has the highest efficiency, the area of the green sub-pixels can be made the smallest.

[0093] In some embodiments, each light-emitting unit 12 includes a first sub-pixel 122, a second sub-pixel 124, and a third sub-pixel 126. Specifically, in this embodiment, each light-emitting unit 12 includes a green sub-pixel, a blue sub-pixel, and a red sub-pixel.

[0094] In some embodiments, each light-emitting unit 12 includes two first sub-pixels 122, a second sub-pixel 124, and a third sub-pixel 126. The two first sub-pixels 122 are arranged along a second direction, and the second direction is perpendicular to the first direction X.

[0095] Specifically, in this embodiment, the sub-pixels in the light-emitting unit 12 are arranged in a GGRB structure. Each light-emitting unit 12 includes two green sub-pixels, a blue sub-pixel, and a red sub-pixel. Among them, there are two green sub-pixels, and in each light-emitting unit 12, the two green sub-pixels are located between the blue sub-pixel and the red sub-pixel and are arranged along a direction perpendicular to the first direction X.

[0096] Please further combine with Figure 1 In some embodiments, the display panel 10 includes a color filter layer 130 disposed on the light-emitting side of the light-emitting device layer 110. The color filter layer 130 includes a plurality of color filter units 132 corresponding to the light-emitting units 12. Each color filter unit 132 includes a first color filter corresponding to the first sub-pixel 122, a second color filter corresponding to the second sub-pixel 124, and a third color filter corresponding to the third sub-pixel 126.

[0097] It should be noted that the corresponding relationship between the color filter unit 132 and the light-emitting unit 12 means that the relative position distribution of the color filter unit 132 corresponds to the relative position distribution of the light-emitting unit 12. The first color filter corresponding to the first sub-pixel 122 means that the shape, size, and relative position distribution of the first sub-pixel 122 correspond to the shape, size, and relative position distribution of the first color filter in the color filter unit 132 of the display panel 10. The second color filter corresponding to the second sub-pixel 124 means that the shape, size, and relative position distribution of the second sub-pixel 124 correspond to the shape, size, and relative position distribution of the second color filter in the color filter unit 132 of the display panel 10. The third color filter corresponding to the third sub-pixel 126 means that the shape, size, and relative position distribution of the third sub-pixel 126 correspond to the shape, size, and relative position distribution of the third color filter in the color filter unit 132 of the display panel 10.

[0098] The first color filter only allows light of green color to pass through, the second color filter only allows light of blue color to pass through, and the third color filter only allows light of red color to pass through. In this way, the first sub-pixel 122 emits green light toward the light-emitting side, the second sub-pixel 124 emits blue light toward the light-emitting side, and the third sub-pixel 126 emits red light toward the light-emitting side.

[0099] In this way, the pixel width D1 of the third sub-pixel 126 and the opening boundary of the BM region 134 are approximately the same as or equal to the pixel opening boundary distance BM OUT value of the third sub-pixel 126, so that the influence degree of the BM region 134 on the light emission of the light-emitting device layer 110 has little difference in the horizontal and vertical directions. ， In this way, the color deviation uniformity in the horizontal and vertical directions of the light-emitting device is effectively improved, and the display effect of the display panel 10 is enhanced.

[0100] In some embodiments, each light-emitting unit 12 includes two first sub-pixels 122, one second sub-pixel 124, and one third sub-pixel 126. The color filter unit 132 includes one first color filter, one second color filter, and one third color filter. The first color filter is correspondingly disposed with the two first sub-pixels 122, the second color filter is correspondingly disposed with the second sub-pixel 124, and the third color filter is correspondingly disposed with the third sub-pixel 126.

[0101] In this way, by sharing one first color film for two first sub-pixels 122 in each light-emitting unit 12, the manufacturing process can be effectively improved and the cost can be saved.

[0102] In some embodiments, each light-emitting unit 12 includes two first sub-pixels 122, a second sub-pixel 124, and a third sub-pixel 126. The color film unit 132 includes two first color films, a second color film, and a third color film. Each first color film is correspondingly arranged with a first sub-pixel 122, the second color film is correspondingly arranged with the second sub-pixel 124, and the third color film is correspondingly arranged with the third sub-pixel 126.

[0103] In this way, by arranging each color film corresponding to one sub-pixel, the light-emitting effect of each sub-pixel can be ensured, thereby effectively improving the color deviation uniformity in different directions of the device.

[0104] In some embodiments, the color film layer 130 includes a BM region 134. The BM region 134 includes a first opening corresponding to the first color film, a second opening corresponding to the second color film, and a third opening corresponding to the third color film. The distances from each side of the first sub-pixel 122 to the corresponding boundary of the first opening are the same, the distances from each side of the second sub-pixel 124 to the corresponding boundary of the second opening are equal, and the distances from each side of the third sub-pixel 126 to the corresponding boundary of the third opening are equal.

[0105] In some embodiments, the distances from each side of the first sub-pixel 122 to the corresponding boundary of the first opening are equal to the distances from each side of the second sub-pixel 124 to the corresponding boundary of the second opening, and are equal to the distances from each side of the third sub-pixel 126 to the corresponding boundary of the third opening.

[0106] The present application also provides a display device, which includes the display panel 10 of any one of the above embodiments.

[0107] In the display device of the present application, each light-emitting unit 12 includes a first sub-pixel 122, a second sub-pixel 124, and a third sub-pixel 126 arranged along the first direction X, and the extending direction of the third sub-pixel 126 forms a preset angle A with the first direction X. In this way, on the one hand, the arrangement that the extending direction of the third sub-pixel 126 forms a preset angle A with the first direction X can ensure that the value of the distance BM OUT between the black matrix opening boundary and the pixel opening boundary of the third sub-pixel 126 remains unchanged, avoiding the increase in the reflectivity of the third sub-pixel 126. On the other hand, the arrangement that the extending direction of the third sub-pixel 126 forms a preset angle A with the first direction X makes the pixel width D1 of the third sub-pixel 126 approximately the same as or the same as the value of the distance BM OUT between the black matrix opening boundary and the pixel opening boundary of the third sub-pixel 126, so that the influence degree of the black matrix BM on the light output of the device has little difference in the horizontal direction and the vertical direction. In this way, the color deviation uniformity in the horizontal direction and the vertical direction of the device is effectively improved, and the display effect of the display device is enhanced.

[0108] Exemplarily, the display device can be any one of various types of computer system devices that are mobile or portable and perform wireless communication. Specifically, the display device can be a mobile phone or a smart phone (e.g., iPhoneTM-based, AndroidTM-based phone), a portable game device (e.g., Nintendo DSTM, PlayStation PortableTM, Gameboy AdvanceTM, iPhoneTM), a tablet computer, a portable Internet device, a data storage device, etc. The display device 100 can also be other wearable devices (e.g., smart bracelets, smart watches, AR glasses, VR glasses, etc.).

[0109] In some cases, the display device can perform multiple functions (e.g., playing music, displaying videos, storing pictures, and receiving and sending phone calls). If necessary, the display device can be a portable device such as a cellular phone, a media player, other handheld devices, a wristwatch device, a headset device, or other compact portable devices.

[0110] The present application also provides a mask assembly for manufacturing the display panel 10 of any of the above embodiments. The mask assembly includes a first mask plate, a second mask plate, and a third mask plate. Among them, the first mask plate includes a first substrate and a first opening area formed on the first substrate, and the first opening area corresponds to the first sub-pixel 122. The second mask plate includes a second substrate and a second opening area formed on the second substrate, and the second opening area corresponds to the second sub-pixel 124. The third mask plate includes a third substrate and a third opening area formed on the third substrate, and the third opening area corresponds to the third sub-pixel 126.

[0111] The mask assembly of the present application can be fabricated to form a display panel 10. In the display panel 10, three or four sub-pixels together form an independent light-emitting unit 12. Inside the light-emitting unit 12, through the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 arranged along the first direction X, at least a part of the extension direction of the third sub-pixel 126 forms a preset angle A with the first direction X, or at least a part of the extension direction of the first sub-pixel 122 and at least a part of the extension direction of the second sub-pixel 124 form a preset angle A with the first direction X, or at least a part of the extension direction of the first sub-pixel 122, at least a part of the extension direction of the second sub-pixel 124, and at least a part of the extension direction of the third sub-pixel 126 form a preset angle A with the first direction X. This design ensures the display effect.

[0112] In some embodiments, the first substrate, the second substrate, and the third substrate are made of a metal material.

[0113] Thus, the first mask plate, the second mask plate, and the third mask plate can be high-precision metal mask plates, which can be applied to the evaporation process to form the corresponding display panel 10 by evaporating the organic light-emitting material corresponding to the pixel pattern.

[0114] Thus, the combined mask integrated frame can be respectively placed into the corresponding evaporation chambers to evaporate the organic light-emitting material corresponding to the sub-pixel. Specifically, each evaporation can form the pattern of one sub-pixel. After forming the pattern of one sub-pixel, the pattern of another sub-pixel is formed. After the patterns of the three sub-pixels are formed, the display panel 10 of the embodiment of the present application is obtained.

[0115] It should be noted that the correspondence between the first opening and the first sub-pixel 122 means that the shape, size, and relative position distribution of the first opening correspond to the shape, size, and relative position distribution of the first sub-pixel 122 in the display panel 10. Thus, during the evaporation process, the evaporation material can pass through the first opening to form the first sub-pixel 122 with a predetermined shape, size, and relative position distribution on the array substrate, that is, the pattern of the first sub-pixel 122. Correspondingly, the correspondence between the second opening and the second sub-pixel 124 means that the shape, size, and relative position distribution of the second opening correspond to the shape, size, and relative position distribution of the second sub-pixel 124 in the display panel 10, and the correspondence between the third opening and the third sub-pixel 126 means that the shape, size, and relative position distribution of the third opening correspond to the shape, size, and relative position distribution of the third sub-pixel 126 in the display panel 10.

[0116] Of course, in other embodiments, it is not limited to forming the display panel 10 by the evaporation process, but the display panel 10 can be formed by lithography, etching, etc. according to needs.

[0117] In the description of this specification, the descriptions referring to terms such as "one embodiment", "certain embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0118] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A display panel, characterized in that, Comprising a plurality of light-emitting units arranged in an array on a light-emitting device layer, each of the light-emitting units including a first sub-pixel, a second sub-pixel, and a third sub-pixel arranged along a first direction, and at least a part of the third sub-pixel having an extension direction at a preset angle with respect to the first direction; or At least a part of the first sub-pixel and at least a part of the second sub-pixel having an extension direction at a preset angle with respect to the first direction; or At least a part of the first sub-pixel, at least a part of the second sub-pixel, and at least a part of the third sub-pixel having an extension direction at a preset angle with respect to the first direction; At least a part of the third sub-pixel having an extension direction at a preset angle with respect to the first direction, the third sub-pixel including a third main body portion and a third extension portion, the third extension portion extending outward from the third main body portion, and the extension direction of the third extension portion being at a preset angle with respect to the first direction.

2. The display panel according to claim 1, wherein The preset angle is 45° and / or 135°.

3. The display panel according to claim 1, wherein When at least a part of the third sub-pixel has an extension direction at a preset angle with respect to the first direction, the third sub-pixel includes at least one third extension portion, and the extension direction of the third extension portion is at a preset angle with respect to the first direction.

4. The display panel according to claim 1 or 3, characterized in that, The third sub-pixel is symmetrically arranged with respect to a straight line passing through the geometric center of the third sub-pixel and parallel to the first direction.

5. The display panel according to claim 4, wherein The first sub-pixel is a green sub-pixel, the second sub-pixel is a blue sub-pixel, the third sub-pixel is a red sub-pixel, each of the light-emitting units including two of the first sub-pixels, one of the second sub-pixels, and one of the third sub-pixels, and the center connection line of the two first sub-pixels being arranged along a second direction perpendicular to the first direction.

6. The display panel according to claim 4, wherein, The first sub-pixel is in a pentagonal or heptagonal shape, and the second sub-pixel is in a hexagonal or octagonal shape.

7. The display panel according to claim 1, characterized in that When at least a part of the first sub-pixel and at least a part of the second sub-pixel have an extension direction at a preset angle with respect to the first direction, The first sub-pixel includes two first extension portions, and the extension direction of the first extension portions is at a preset angle with respect to the first direction; The second sub-pixel includes two second extension portions, and the extension direction of the second extension portions is at a preset angle with respect to the first direction, and the first sub-pixel and the second sub-pixel enclose and surround the third sub-pixel.

8. The display panel according to claim 1, wherein When at least a part of the first sub-pixel and at least a part of the second sub-pixel have an extension direction at a preset angle with respect to the first direction, The first sub-pixel includes one first extension portion, and the extension direction of the first extension portion is at a preset angle with respect to the first direction; The second sub-pixel includes one second main body portion and two second extension portions, and the extension direction of the second main body portion and the two second extension portions is at a preset angle with respect to the first direction, and the first sub-pixel and the second sub-pixel enclose and surround the third sub-pixel.

9. The display panel according to claim 7 or 8, characterized in that, The third sub-pixel is in a rhombic shape.

10. The display panel according to claim 1, wherein When at least a part of the first sub-pixel, at least a part of the second sub-pixel, and at least a part of the third sub-pixel have an extension direction at a preset angle with respect to the first direction; The first sub-pixel includes a first main body portion and two first extending portions, the first extending portions extending outward from the first main body portion, and the extending direction of the first extending portions forming a preset angle with the first direction; The second sub-pixel includes a second main body portion and two second extending portions, the second extending portions extending outward from the second main body portion, and the extending direction of the second extending portions forming a preset angle with the first direction; The third sub-pixel includes three third extending portions, the extending direction of the third extending portions forming a preset angle with the first direction; The first sub-pixel and the second sub-pixel enclose and are disposed around the third sub-pixel.

11. The display panel according to claim 1, characterized in that, When at least a part of the first sub-pixel, at least a part of the second sub-pixel, and at least a part of the third sub-pixel have an extending direction forming a preset angle with the first direction; The first sub-pixel includes a first extending portion, the extending direction of the first extending portion forming a preset angle with the first direction; The second sub-pixel includes two second main body portions and three second extending portions, the second extending portions extending outward from the second main body portions, and the extending direction of the second extending portions forming a preset angle with the first direction; The third sub-pixel includes three third extending portions, the extending direction of the third extending portions forming a preset angle with the first direction; The first sub-pixel and the second sub-pixel enclose and are disposed around the third sub-pixel.

12. The display panel according to any one of claims 1 to 3, 5 to 8, 10, and 11, characterized in that, The display panel includes a color filter layer disposed on the light-emitting side of the light-emitting device layer, the color filter layer including a plurality of color filter units corresponding to the light-emitting units, and each color filter unit including a first color filter corresponding to the first sub-pixel, a second color filter corresponding to the second sub-pixel, and a third color filter corresponding to the third sub-pixel.

13. The display panel according to claim 12, wherein The color filter layer includes a BM region, the BM region including a first opening corresponding to the first color filter, a second opening corresponding to the second color filter, and a third opening corresponding to the third color filter, the distances from each side of the first sub-pixel to the corresponding boundary of the first opening being the same, the distances from each side of the second sub-pixel to the corresponding boundary of the second opening being equal, and the distances from each side of the third sub-pixel to the corresponding boundary of the third opening being equal.

14. The display panel according to claim 13, characterized in that, The distances from each side of the first sub-pixel to the corresponding boundary of the first opening are equal to the distances from each side of the second sub-pixel to the corresponding boundary of the second opening, and are equal to the distances from each side of the third sub-pixel to the corresponding boundary of the third opening.

15. A display device, characterized in that, Including the display panel according to any one of claims 1-14.

16. A mask assembly for manufacturing the display panel according to any one of claims 1-14, characterized in that, The mask assembly includes: A first mask plate, the first mask plate including a first substrate and a first opening region formed in the first substrate, the first opening region corresponding to the first sub-pixel; A second mask plate, the second mask plate including a second substrate and a second opening region formed in the second substrate, the second opening region corresponding to the second sub-pixel; and A third mask plate, the third mask plate including a third substrate and a third opening region formed in the third substrate, the third opening region corresponding to the third sub-pixel.

Images