Display panel, mask assembly, and display device

Abstract

The present application provides a display panel, a mask assembly, and a display device. The display panel includes pixel units, and each pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. The central connection lines of the three sub-pixels are arranged in a triangular shape. The second sub-pixel and the third sub-pixel are arranged along a first direction. The first sub-pixels of two adjacent pixel units in a second direction are adjacent to each other, or the second sub-pixels of two pixel units are adjacent to each other and the third sub-pixels are adjacent to each other. Among the three sub-pixels in the pixel unit, the distances from the corresponding adjacent sub-pixels in the second direction are partially the same and partially different. Through the arrangement of the pixel units and the sub-pixels in the pixel units, the present application realizes high-resolution display, and is conducive to adjusting the aperture ratio and achieving the maximum lifespan of the device.

Description

Technical Field

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

[0002] With the continuous development of display technology, how to achieve a higher resolution for the display screen has become an important research and development direction. A high resolution can ensure a better display picture. However, for a high-resolution display screen, the pixel size and the pitch between pixels need to be correspondingly reduced, which poses extremely high requirements on the manufacturing process. How to improve the resolution while reducing the process difficulty has become an exploration problem. Summary of the Invention

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

[0004] The display panel according to an embodiment of the present application includes a plurality of pixel units arranged in an array. Each pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. The central connection lines of the first sub-pixel, the second sub-pixel, and the third sub-pixel within the pixel unit are arranged in a triangular shape.

[0005] The pixel units are arranged in a first direction and a second direction. The second sub-pixel and the third sub-pixel are arranged in the first direction, such that the first sub-pixels of two adjacent pixel units in the second direction are adjacent to each other, or the second sub-pixels of two adjacent pixel units in the second direction are adjacent to each other and the third sub-pixels are adjacent to each other.

[0006] The distances between the three sub-pixels in the pixel unit and the corresponding adjacent sub-pixels in the second direction are partially the same and partially different.

[0007] In some embodiments, the distance between the second sub-pixel in the pixel unit and the corresponding adjacent second sub-pixel in the second direction is equal to the distance between the third sub-pixel in the pixel unit and the corresponding adjacent third sub-pixel in the second direction. The distance between the first sub-pixel in the pixel unit and the corresponding adjacent first sub-pixel in the second direction is less than the distance between the second sub-pixel in the pixel unit and the corresponding adjacent second sub-pixel in the second direction.

[0008] In some embodiments, the center of the triangle formed by the central connection lines of the first sub-pixel, the second sub-pixel, and the third sub-pixel is the light-emitting center of the pixel unit.

[0009] In some embodiments, the light-emitting centers of the pixel units are arranged on the same straight line in the first direction.

[0010] In some embodiments, the first sub-pixel, the second sub-pixel, and the third sub-pixel are all quadrilateral or pentagonal.

[0011] In some embodiments, the first sub-pixel, the second sub-pixel, and the third sub-pixel each include at least one right angle.

[0012] In some embodiments, the right-angle sides of the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively arranged along directions parallel to the first direction and the second direction.

[0013] In some embodiments, the corners of the first sub-pixel, the second sub-pixel, and the third sub-pixel are designed with rounded corners.

[0014] In some embodiments, the sides of the first sub-pixel are parallel to the opposite sides of the adjacent first sub-pixel, second sub-pixel, and third sub-pixel, the sides of the second sub-pixel are parallel to the opposite sides of the adjacent first sub-pixel, second sub-pixel, and third sub-pixel, and the sides of the third sub-pixel are parallel to the opposite sides of the adjacent first sub-pixel, second sub-pixel, and third sub-pixel.

[0015] In some embodiments, the emission color of the first sub-pixel is different from the emission colors of the second sub-pixel and the third sub-pixel.

[0016] In some embodiments, the first sub-pixel is a blue sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel is a green sub-pixel.

[0017] In some embodiments, for two adjacent pixel units in the second direction, they are mirror-symmetrical with respect to the perpendicular bisector of the line connecting the centers of two adjacent first sub-pixels arranged adjacent in the second direction, or mirror-symmetrical with respect to the perpendicular bisector of the line connecting the centers of two adjacent second sub-pixels arranged adjacent in the second direction, or mirror-symmetrical with respect to the perpendicular bisector of the line connecting the centers of two adjacent third sub-pixels arranged adjacent in the second direction.

[0018] In some embodiments, the side of the first sub-pixel relative to the second sub-pixel in the pixel unit forms a preset angle with the first direction.

[0019] In some embodiments, the first sub-pixel includes a first side parallel to the first direction, and the first sides of two adjacent first sub-pixels arranged adjacent in the second direction are relatively parallel, and the distance between the first sub-pixel and the corresponding adjacent first sub-pixel in the second direction in the pixel unit is the distance between the first sides of two adjacent first sub-pixels.

[0020] In some embodiments, the second sub-pixel includes a second side parallel to the first direction. The second sides of two adjacent second sub-pixels arranged adjacent to each other in the second direction are arranged relatively parallel to each other. The distance between the second sub-pixels in the second direction in the pixel unit and the corresponding adjacent second sub-pixels is the distance between the second sides of two adjacent second sub-pixels arranged adjacent to each other.

[0021] In some embodiments, the third sub-pixel includes a third side parallel to the first direction. The third sides of two adjacent third sub-pixels arranged adjacent to each other in the second direction are arranged relatively parallel to each other. The distance between the third sub-pixels in the second direction in the pixel unit and the corresponding adjacent third sub-pixels is the distance between the third sides of two adjacent third sub-pixels arranged adjacent to each other.

[0022] In some embodiments, the first sub-pixel includes a fourth side opposite to the second sub-pixel in an adjacent pixel unit, and the second sub-pixel includes a fifth side opposite to the first sub-pixel in an adjacent pixel unit. The fourth side and the fifth side are parallel to the second direction.

[0023] In some embodiments, the display panel is an OLED display panel.

[0024] The mask assembly according to the embodiments of the present application is used to manufacture the display panel according to any one of the above embodiments. The mask assembly includes:

[0025] A first mask plate, the first mask plate includes a first substrate and at least one first opening formed in the first substrate. Each first opening covers two adjacent first sub-pixels in the second direction of the display panel and the distance between the two first sub-pixels.

[0026] A second mask plate, the second mask plate includes a second substrate and at least one second opening formed in the second substrate. Each second opening covers two adjacent second sub-pixels in the second direction of the display panel and the distance between the two second sub-pixels.

[0027] A third mask plate, the third mask plate includes a third substrate and at least one third opening formed in the third substrate. Each third opening covers two adjacent third sub-pixels in the second direction of the display panel and the distance between the two third sub-pixels.

[0028] In some embodiments, the stretching direction of the mask assembly corresponds to the second direction in the display panel.

[0029] In some embodiments, the first opening, the second opening, and the third opening are all hexagonal.

[0030] The display device according to the embodiment of the present application includes the display panel described in any one of the above embodiments.

[0031] A method for manufacturing a display panel according to an embodiment of the present application is used to manufacture the display panel described in any one of the above embodiments. The manufacturing method includes:

[0032] Using a first mask to form the first sub-pixels of the display panel. The first mask includes at least one first opening, and each first opening covers two adjacent first sub-pixels of the display panel in the second direction and the spacing between the two first sub-pixels.

[0033] Using a second mask to form the second sub-pixels of the display panel. The second mask includes at least one second opening, and each second opening covers two adjacent second sub-pixels of the display panel in the second direction and the spacing between the two second sub-pixels.

[0034] Using a third mask to form the third sub-pixels of the display panel. The third mask includes at least one third opening, and each third opening covers two adjacent third sub-pixels of the display panel in the second direction and the spacing between the two third sub-pixels.

[0035] In the display panel, mask assembly, display device, and method for manufacturing a display panel of the present application, through the arrangement that the center connection lines of the first sub-pixel, the second sub-pixel, and the third sub-pixel in the pixel unit form a triangle, and the setting that the numbers of the first sub-pixel, the second sub-pixel, and the third sub-pixel are the same, Real RGB pixel arrangement is achieved, which can not only improve the resolution of the display panel but also reduce the process difficulty. By arranging the second sub-pixel and the third sub-pixel along the first direction, the first sub-pixels of two adjacent pixel units in the second direction are adjacent, or the second sub-pixels of two adjacent pixel units in the second direction are adjacent and the third sub-pixels are adjacent, which is beneficial to improving the aperture ratio of the sub-pixels, thereby enhancing the display life of the display panel. And through the setting that the distances between the three sub-pixels in the pixel unit and the corresponding adjacent sub-pixels are partially the same and partially different in the second direction, it is beneficial for the virtual light-emitting centers to be more evenly distributed in the vertical direction and the horizontal virtual centers to be on a horizontal line, so that the graininess of the pixel unit is more evenly displayed and the display image quality is ensured to be uniform.

[0036] Additional aspects and advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. Description of the Drawings

[0037] 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, wherein:

[0038] Figure 1 is a schematic structural diagram of a display panel according to an embodiment of the present application;

[0039] Figure 2 is a schematic structural diagram of a display panel according to an embodiment of the present application;

[0040] Figure 3 is a schematic structural diagram of a display panel according to an embodiment of the present application;

[0041] Figure 4 is a schematic structural diagram of a display panel according to an embodiment of the present application;

[0042] Figure 5 is a schematic structural diagram of a first mask plate according to an embodiment of the present application;

[0043] Figure 6 is a schematic structural diagram of a second mask plate according to an embodiment of the present application;

[0044] Figure 7 is a schematic structural diagram of a third mask plate according to an embodiment of the present application;

[0045] Figure 8 is a schematic diagram of a pixel opening structure of a mask assembly according to an embodiment of the present application;

[0046] Figure 9 is a schematic flow chart of a method for manufacturing a display panel according to an embodiment of the present application.

[0047] Main element symbol description:

[0048] Display device, display panel 10, pixel unit 12, first sub-pixel 122, first side 1222, fourth side 1224, second sub-pixel 124, second side 1242, fifth side 1244, third sub-pixel 126, third side 1262, first mask plate 20, first substrate 22, first opening 24, second mask plate 30, second substrate 32, second opening 34, third mask plate 40, third substrate 42, third opening 44. Detailed Description of the Embodiments

[0049] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0050] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "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, and are only for the convenience of describing 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, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0051] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" should be construed broadly. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, an electrical connection or a connection capable of mutual communication; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. 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.

[0052] 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, 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. Such 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.

[0053] With the continuous development of display technology, how to achieve higher resolution for display screens has become an important research and development direction. High resolution can ensure a better display image. For high-resolution display screens, the pixel size and the pitch between pixels need to be correspondingly reduced, which requires extremely high manufacturing processes. How to improve the resolution while reducing the process difficulty has become an urgent problem to be solved.

[0054] Currently, in OLED, the sub-pixel rendering (SPR) technology process can be used to solve the above problems. The SPR technology can utilize the difference in the resolution of the human eye for different color sub-pixels, change the conventional mode of simply defining a pixel with three sub-pixels of red, green, and blue, and share some sub-pixels that are insensitive to the resolution at certain positions among different pixels. With a relatively small number of sub-pixels, it can simulate and achieve the same pixel resolution performance ability, thereby reducing the manufacturing process difficulty and manufacturing cost. However, there are still unevenness or incomplete display of features when borrowing pixels to display some delicate images.

[0055] In related technologies, the RealRGB pixel structure can be used to solve the problems existing in the sub-pixel rendering pixel technology. The RealRGB pixel structure has no pixel borrowing relationship, and the RealRGB pixel structure has better image fineness than the sub-pixel rendering pixel at the same resolution.

[0056] Currently, the RealRGB pixel structure mainly includes two types: RealSRGB pixel arrangement and RealDeltaRGB pixel arrangement. The monochromatic pixels of SRGB are in the same row and the same column, and both the row and the column are equally spaced, with better display effects, but the pixel aperture ratio is low, resulting in low lifespan and not meeting the usage requirements. The Delta pixel arrangement has the characteristic of a high pixel aperture ratio, but the display effect is not good.

[0057] In view of this, please refer to Figure 1 and Figure 2 , this application provides a display panel 10. The display panel 10 includes a plurality of pixel units 12 arranged in an array. Each pixel unit 12 includes a first sub-pixel 122, a second sub-pixel 124, and a third sub-pixel 126. The center connection lines of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 within the pixel unit 12 are arranged in a triangle;

[0058] The pixel units 12 are arranged along a first direction and a second direction. The second sub-pixel 124 and the third sub-pixel 126 are arranged along the first direction. The first sub-pixels 122 of two adjacent pixel units 12 in the second direction are adjacent to each other, or the second sub-pixels 124 of two adjacent pixel units 12 in the second direction are adjacent to each other and the third sub-pixels 126 are adjacent to each other;

[0059] The pitch between two adjacent second sub-pixels 124 arranged in the second direction is equal to the pitch between two adjacent third sub-pixels 126 arranged in the second direction, and the pitch between two adjacent first sub-pixels 122 arranged in the second direction is less than the pitch between two adjacent second sub-pixels 124 arranged in the second direction.

[0060] In the display panel 10 of the present application, by arranging the center connection lines of the first sub-pixels 122, the second sub-pixels 124, and the third sub-pixels 126 in the pixel unit 12 to form a triangle, and setting the same number of the first sub-pixels 122, the second sub-pixels 124, and the third sub-pixels 126, a Real RGB pixel arrangement is achieved, which can not only improve the resolution of the display panel 10 but also reduce the process difficulty; by arranging the second sub-pixels 124 and the third sub-pixels 126 along the first direction, and arranging the first sub-pixels 122 of two adjacent pixel units 12 adjacent to each other in the second direction, or arranging the second sub-pixels 124 of two adjacent pixel units 12 adjacent to each other and the third sub-pixels 126 adjacent to each other in the second direction, it is beneficial to increase the aperture ratio of the sub-pixels, thereby improving the display life of the display panel 10. And by setting the pitches between the three sub-pixels in the pixel unit 12 and the corresponding adjacent sub-pixels to be partially the same and partially different in the second direction, it is beneficial to make the virtual light-emitting centers more evenly distributed in the vertical direction and the horizontal virtual centers on a horizontal line, so that the granularity display of the pixel unit 12 is more uniform, ensuring uniform display image quality.

[0061] 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, can achieve self-luminescence and can implement customized driving for the pixel unit 12. Without a backlight, the display function can be achieved, and it has the advantages of being thin, light, low in energy consumption, high in brightness, and good in luminous efficiency.

[0062] It should be noted that the pixel unit 12 refers to the smallest repeating unit in the display panel 10 that can achieve the same light-emitting effect and function. The arrangement of multiple pixel units 12 in an array means that the centers of multiple pixel units 12 are arranged in a staggered manner along at least the first direction and the second direction to form an array. In particular, multiple pixel units 12 may be arranged in a staggered manner along the mutually perpendicular first direction and the second direction to form an array layout. At this time, the mutually perpendicular first direction and the second direction may be the row extension direction and the column extension direction of the pixel unit 12. The pixel units 12 arranged along the row extension direction form pixel rows, and the pixel units 12 arranged along the column extension direction form pixel columns. Among them, the rows and columns of the pixel unit 12 arranged in the display panel 10 are relative.

[0063] Please refer to Figure 1 、 3 orFigure 4 , in some embodiments, the first direction may be the row direction, that is, the row extension direction of the pixel unit 12, and the second direction may be the column direction, that is, the column extension direction of the pixel unit 12. Please refer to Figure 2 , in some embodiments, the first direction may also be the column direction, that is, the column extension direction of the pixel unit 12, and the second direction may be the row direction, that is, the row extension direction of the pixel unit 12.

[0064] It should also be noted that 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 second sub-pixel 124 and the third sub-pixel 126 are arranged along the first direction.

[0065] The first sub-pixel 122 of each pixel unit 12 is located on one side of the line connecting the second sub-pixel 124 and the third sub-pixel 126.

[0066] The pitch between sub-pixels refers to the minimum distance between the mutually adjacent edges of the sub-pixels, and this distance is less than the distance between the geometric centers of the two sub-pixels. The pitch between two adjacent second sub-pixels 124 arranged adjacent to each other needs to be greater than or equal to the process limit distance. The pitch between two adjacent third sub-pixels 126 arranged adjacent to each other in the second direction needs to be greater than or equal to the process limit distance, and the pitch between two adjacent first sub-pixels 122 arranged adjacent to each other in the second direction needs to be greater than or equal to the process limit distance. In this way, the display panel 10 can minimize the pitch between adjacent first sub-pixels 122, adjacent second sub-pixels 124, and adjacent third sub-pixels 126 in the second direction to the greatest extent. Thus, under the condition of the same resolution, the pixel aperture area can be increased between adjacent first sub-pixels 122, adjacent second sub-pixels 124, and adjacent third sub-pixels 126 in the second direction, the driving current of the display device can be reduced, and further the service life of the display device can be increased.

[0067] Please refer to Figure 1 , in certain embodiments, the pitch L2 between the second sub-pixel 124 in the pixel unit 12 and the corresponding adjacent second sub-pixel 124 in the second direction is equal to the pitch L3 between the third sub-pixel 126 in the pixel unit 12 and the corresponding adjacent third sub-pixel 126 in the second direction, and the pitch L1 between the first sub-pixel 122 in the pixel unit 12 and the corresponding adjacent first sub-pixel 122 in the second direction is less than the pitch L2 between the second sub-pixel 124 in the pixel unit 12 and the corresponding adjacent second sub-pixel 124 in the second direction.

[0068] Please further refer to Figures 1-4, in some embodiments, the center of the triangle formed by the center connection lines of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 is the light-emitting center of the pixel unit 12. The light-emitting center of the pixel unit 12 may be located at the center position of the pixel unit 12.

[0069] In this way, the distances from the geometric centers of each sub-pixel in the pixel unit 12 to the light-emitting center of the light-emitting unit of the pixel unit 12 are the same, ensuring the uniformity of the virtual light-emitting center of the pixel unit 12, thereby effectively improving the display graininess and making the image quality more uniform.

[0070] In some embodiments, the light-emitting centers of the pixel units 12 are arranged on the same straight line along the first direction. The light-emitting centers of the pixel light-emitting units are arranged on the same straight line along the second direction.

[0071] Specifically, for the pixel units 12 in each pixel row, the center of the triangle formed by the center connection lines of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 is arranged on the same straight line along the first direction. For the pixel units 12 in each pixel column of each row, the center of the triangle formed by the center connection lines of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 is arranged on the same straight line along the second direction.

[0072] In some embodiments, the light-emitting color of the first sub-pixel 122 is different from the light-emitting colors of both the second sub-pixel 124 and the third sub-pixel 126. For example, in this embodiment, the first sub-pixel 122 is a blue sub-pixel, the second sub-pixel 124 is a red sub-pixel, and the third sub-pixel 126 is a green sub-pixel. That is, the RealRGB pixel arrangement is adopted in this application.

[0073] Among them, the light-emitting area of the first sub-pixel 122 is larger than that of the third sub-pixel 126, and the light-emitting area of the third sub-pixel 126 is larger than that of the second sub-pixel 124. That is, the light-emitting area of the blue sub-pixel is larger than that of the green sub-pixel, and the light-emitting area of the green sub-pixel is larger than that of the red sub-pixel. The specific ratio of the light-emitting areas of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 is not limited and can be set according to actual situations. For example, the light-emitting areas of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 can be 5:2:4 or 5:2:3 or 6:3:5, etc.

[0074] Understandably, for an organic light-emitting diode display device, since the blue light-emitting material generally has the lowest luminous efficiency and relatively short lifespan compared to red and green, the area of the blue sub-pixel can be larger than that of the red and green sub-pixels. In addition, since the human eye is more sensitive to red and the red light-emitting material has the highest efficiency, the area of the red sub-pixel can be made the smallest.

[0075] Of course, in other embodiments, the correspondence of the emission colors of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 is not limited to the embodiments discussed above, but can be changed according to actual needs, and no specific limitation is made here.

[0076] In some embodiments, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are all quadrilateral or pentagonal. For example, please refer to Figures 1-2 , in some examples, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are all quadrilateral. Again, for example, please refer to Figure 3 , in some examples, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are all pentagonal. In this way, it is beneficial to optimize the aperture ratio of the sub-pixels and improve the lifespan of the display panel 10.

[0077] Of course, in other embodiments, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are not limited to the shapes discussed above, but can be selected as hexagons, octagons or even more polygons according to actual needs, and no specific limitation is made here.

[0078] Furthermore, the size of the first sub-pixel 122 in the first direction is greater than the size in the second direction, and in the second direction, the size of the first sub-pixel 122 near the third sub-pixel 126 is smaller than the size near the second sub-pixel 122.

[0079] It should be noted that the shapes and areas of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 can be the same as the shapes and areas of the light-emitting layer exposed from the corresponding opening regions of the pixel definition layer.

[0080] In some embodiments, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 all include at least one right angle. For example, please refer to Figure 1 , in some examples, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 all include three right angles. The first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 can be obtained by removing a right angle from a rectangle. And in one pixel unit 12, the removed right angles of the first sub-pixel 122 and the third sub-pixel 126 are opposite angles. Again, for example, please refer to Figure 3, in some examples, the first sub-pixel 122 and the second sub-pixel 124 include two right angles, and the third sub-pixel 126 includes one right angle. The first sub-pixel 122 and the second sub-pixel 124 are obtained by removing two right angles from a rectangle, and the third sub-pixel 126 is obtained by removing three right angles from a rectangle. Moreover, the right angles removed from the third sub-pixel 126 correspond to the right angles removed from the first sub-pixel 122 and the second sub-pixel 124 respectively.

[0081] In some embodiments, the right-angle sides of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are respectively arranged along directions parallel to the first direction and the second direction.

[0082] Please refer to Figure 1 or Figure 2 , in some embodiments, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 all include two obtuse angles.

[0083] In some embodiments, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 include at least one acute angle and one obtuse angle. For example, please refer to Figure 3 , in some examples, the first sub-pixel 122 and the second sub-pixel 124 both include one acute angle and one obtuse angle, and the third sub-pixel 126 includes two obtuse angles and one acute angle.

[0084] Please refer to Figure 4 , in some embodiments, the corners of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are designed with rounded corners. In this way, the problem of color separation of the pixel unit 12 is effectively improved to a certain extent, and thus the display effect of the display panel 10 can be further enhanced.

[0085] Please further refer to Figure 1 , in some embodiments, the sides of the first sub-pixel 122 are parallel to the opposite sides of the adjacent first sub-pixel 122, second sub-pixel 124, and third sub-pixel 126, the sides of the second sub-pixel 124 are parallel to the opposite sides of the adjacent first sub-pixel 122, second sub-pixel 124, and third sub-pixel 126, and the sides of the third sub-pixel 126 are parallel to the opposite sides of the adjacent first sub-pixel 122, second sub-pixel 124, and third sub-pixel 126.

[0086] In this way, the distances between the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 within the pixel unit 12 and between adjacent pixel units 12 can be set to the minimum, so that the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 within the pixel units 12 and between adjacent pixel units 12 can cooperate closely, thereby increasing the number of pixel units per unit area and being beneficial to improving the resolution of the display panel 10.

[0087] In some embodiments, two adjacent pixel units 12 in the second direction are mirror-symmetrical with respect to the perpendicular bisector of the line connecting the centers of two adjacent first sub-pixels 122 arranged adjacent to each other in the second direction.

[0088] In some embodiments, two adjacent pixel units 12 in the second direction are mirror-symmetrical with respect to the perpendicular bisector of the line connecting the centers of two adjacent second sub-pixels 124 arranged adjacent to each other in the second direction.

[0089] In some embodiments, two adjacent pixel units 12 in the second direction are mirror-symmetrical with respect to the perpendicular bisector of the line connecting the centers of two adjacent third sub-pixels 126 arranged adjacent to each other in the second direction.

[0090] It should be noted that the perpendicular bisector of the line connecting the centers of two first sub-pixels 122 in the second direction is located between the perpendicular bisectors of the lines connecting the centers of two second sub-pixels 124 and the perpendicular bisectors of the lines connecting the centers of two third sub-pixels 126.

[0091] In some embodiments, the side of the first sub-pixel 122 relative to the second sub-pixel 124 in the pixel unit 12 forms a preset angle with the first direction.

[0092] The preset angle can be either an acute angle or an obtuse angle. When the preset angle is an acute angle, the range of the preset angle can be between 30° and 60°. For example, the preset angle can be 30°, 35°, 40°, 45°, 50°, 55° or 60°. When the preset angle is an obtuse angle, the range of the preset angle can be between 120° and 150°. For example, the preset angle can be 120°, 125°, 130°, 135°, 140°, 145° or 150°. Of course, it can be understood that the above preset angle values are only for illustrative purposes and do not limit the specific values of the preset angle. For example, in other embodiments, the preset angle can also be other acute or obtuse angle values.

[0093] Furthermore, in some embodiments, the size of the preset angle is 30° or 150°. For example, in some embodiments, the angle between the side of the first sub-pixel 122 relative to the second sub-pixel 124 in the pixel unit 12 and the first direction is 30°. In other embodiments, the angle between the side of the first sub-pixel 122 relative to the second sub-pixel 124 in the pixel unit 12 and the first direction is 150°. It can be understood that when the angle between the side of the first sub-pixel 122 relative to the second sub-pixel 124 in the pixel unit 12 and the first direction is 30° or 150°, the first sub-pixel 122 and the second sub-pixel 124 in the pixel unit 12 cooperate with each other, which is beneficial to improving the resolution of the display panel 10.

[0094] Please further combineFigure 1 In some embodiments, the first sub-pixel 122 includes a first side 1222 parallel to the first direction. The first sides 1222 of two adjacent first sub-pixels 122 arranged adjacent to each other in the second direction are parallel. The distance L1 between the first sub-pixel 122 in the pixel unit 12 and the corresponding adjacent first sub-pixel 122 in the second direction is the distance between the first sides 1222 of two adjacent first sub-pixels 122 arranged adjacent to each other.

[0095] In some embodiments, the second sub-pixel 124 includes a second side 1242 parallel to the first direction. The second sides 1242 of two adjacent second sub-pixels 124 arranged adjacent to each other in the second direction are parallel. The distance L2 between the second sub-pixel 124 in the pixel unit 12 and the corresponding adjacent second sub-pixel 124 in the second direction is the distance between the second sides 1242 of two adjacent second sub-pixels 124 arranged adjacent to each other.

[0096] In some embodiments, the third sub-pixel 126 includes a third side 1262 parallel to the first direction. The third sides 1262 of two adjacent third sub-pixels 126 arranged adjacent to each other in the second direction are parallel. The distance L3 between the third sub-pixel 126 in the pixel unit 12 and the corresponding adjacent third sub-pixel 126 in the second direction is the distance between the third sides of two adjacent third sub-pixels 126.

[0097] In some embodiments, the first sub-pixel 122 includes a fourth side 1224 opposite to the second sub-pixel 124 in an adjacent pixel unit 12, and the second sub-pixel 124 includes a fifth side 1244 opposite to the first sub-pixel 122 in an adjacent pixel unit 12. The fourth side 1224 and the fifth side 1244 are parallel to the second direction.

[0098] Please refer to Figures 5-8, Embodiments of the present application also provide a mask assembly (not shown in the figure) for manufacturing the display panel 10 of the above embodiments. The mask assembly includes a first mask plate 20, a second mask plate 30, and a third mask plate 40. Among them, the first mask plate 20 includes a first substrate 22 and at least one first opening 24 formed in the first substrate 22. Each first opening 24 covers two adjacent first sub-pixels 122 arranged in the second direction on the display panel 10 and the spacing between the two first sub-pixels 122. The second mask plate 30 includes a second substrate 32 and at least one second opening 34 formed in the second substrate 32. Each second opening 34 covers two adjacent second sub-pixels 124 arranged in the second direction on the display panel 10 and the spacing between the two second sub-pixels 124. The third mask plate 40 includes a third substrate 42 and at least one third opening 44 formed in the third substrate 42. Each third opening 44 covers two adjacent third sub-pixels 126 arranged in the second direction on the display panel 10 and the spacing between the two third sub-pixels 126.

[0099] The mask assembly of the present application can be used to fabricate the display panel 10. By making each opening of the mask plate correspond to two adjacent sub-pixels, the product yield can be improved. In the display panel 10, three sub-pixels together form an independent pixel unit 12. Inside the pixel unit 12, the center connection lines of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 form a triangle. The numbers of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are the same, realizing a Real RGB pixel arrangement. This can not only improve the resolution of the display panel 10 but also reduce the process difficulty. Moreover, it is beneficial to the aperture ratio of the sub-pixels, improving the display life of the display panel 10. Additionally, it is beneficial for the virtual light-emitting centers of the pixel units 12 to be more evenly distributed in the vertical direction and for the horizontal virtual centers to be on a horizontal line, making the granularity display of the pixel units 12 more uniform and ensuring uniform display image quality.

[0100] The shape and area of the first opening 24 are substantially the same as the shape and area formed by combining two adjacent first sub-pixels 122 arranged in the second direction. The shape and area of the second opening 34 are substantially the same as the shape and area formed by combining two adjacent second sub-pixels 124 arranged in the second direction. The shape and area of the third opening 44 are substantially the same as the shape and area formed by combining two adjacent third sub-pixels 126 arranged in the second direction.

[0101] In some embodiments, the first substrate 22, the second substrate 32, and the third substrate 42 can be made of a metal material.

[0102] Thus, the first mask plate 20, the second mask plate 30, and the third mask plate 40 can be fine metal masks (FMMs), which can be applied to the evaporation process to form the corresponding display panel 10 by evaporating the organic light-emitting materials corresponding to the pixel patterns.

[0103] In some embodiments, the mask assembly further includes a cover mask, a howling mask, and an alignment mask. The first mask plate 20, the second mask plate 30, and the third mask plate 40 can each be combined with the cover mask, the howling mask, and the alignment mask to form a mask integrated frame (Mask Frame Assembly; MFA).

[0104] Thus, the combined mask integrated frame can be respectively placed into the corresponding evaporation chambers to evaporate the organic light-emitting materials corresponding to the sub-pixels. Specifically, each evaporation can form the pattern of one type of sub-pixel. After forming the pattern of one type of sub-pixel, the pattern of another type of sub-pixel is formed. After the patterns of the three types of sub-pixels are formed, the display panel 10 of the embodiment of the present application is obtained.

[0105] In some embodiments, in order to reduce the evaporation difficulty, the FMM openings for evaporating adjacent sub-pixels are fabricated in a 2-in-1 manner, that is, each FMM pixel opening corresponds to 2 adjacent sub-pixels, thereby improving the product yield.

[0106] It should be noted that adjacent sub-pixels refer to the same sub-pixels in the adjacent pixel units 12. For example, one FMM pixel opening corresponds to two adjacent first sub-pixels 122, one FMM pixel opening corresponds to two adjacent second sub-pixels 124, and one FMM pixel opening corresponds to two adjacent third sub-pixels 126.

[0107] Therefore, with the same PDL Gap, the pixel aperture ratio is greatly improved, making it easier to meet the product requirements. For example, with the same PDL Gap and the same opening ratios of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126, the pixel aperture ratio of the Real RGB pixel arrangement of the present application can reach 18% - 20%, while the pixel aperture ratio of the Delta RGB pixel arrangement is about 14%, and the pixel aperture ratio of the Real-SRGB pixel arrangement is about 6%. Thus, the pixel aperture ratio of the sub-pixels of the present application is significantly improved at high resolutions, enhancing the service life of the display panel.

[0108] Of course, in other embodiments, the display panel 10 is not limited to be formed by the evaporation process, but can be formed by lithography, etching, etc. as needed.

[0109] Please further combine with Figure 8 In some embodiments, the first opening 24, the second opening 34, and the third opening 44 are all hexagonal.

[0110] In some embodiments, the stretching direction of the mask assembly corresponds to the second direction in the display panel 10. In this way, the stretching direction of the mask assembly is the long side direction of the pixel, which is beneficial to the stretching of the mask assembly and ensures the stretching accuracy.

[0111] This application also provides a display device. The display device includes the display panel 10 of the above embodiments.

[0112] In the display device of this application, the central connection lines of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 in the pixel unit 12 of the display panel 10 are arranged in a triangle, and the numbers of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are the same, realizing the Real RGB pixel arrangement, which can not only improve the resolution of the display panel 10 but also reduce the process difficulty. By arranging the second sub-pixel 124 and the third sub-pixel 126 along the first direction, the first sub-pixels 122 of two adjacent pixel units 12 in the second direction are adjacent, or the second sub-pixels 124 of two adjacent pixel units 12 in the second direction are adjacent and the third sub-pixels 126 are adjacent, which is beneficial to the aperture ratio of the sub-pixels and improves the display life of the display panel 10. In addition, it is also beneficial for the virtual light-emitting centers to be more evenly distributed in the vertical direction and the horizontal virtual centers to be on a horizontal line, so that the graininess of the pixel unit 12 is more evenly displayed and the display image quality is guaranteed to be uniform.

[0113] 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 (for example, based on iPhoneTM, based on AndroidTM phone), a portable game device (for example, NintendoDSTM, PlayStationPortableTM, GameboyAdvanceTM, iPhoneTM), a tablet computer, a portable Internet device, a data storage device, etc. The display device can also be other wearable devices (for example, smart bracelets, smart watches, AR glasses, VR glasses, etc.).

[0114] In some cases, the display device can perform multiple functions (for example, 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.

[0115] In combination with Figure 9 , the present application further provides a manufacturing method of the display panel 10 for manufacturing the display panel 10 in the above embodiment. The manufacturing method includes:

[0116] 01. Form the first sub-pixels of the display panel by using a first mask plate. The first mask plate includes at least one first opening, and each first opening covers two adjacent first sub-pixels of the display panel in the second direction and the spacing between the two first sub-pixels;

[0117] 02. Form the second sub-pixels of the display panel by using a second mask plate. The second mask plate includes at least one second opening, and each second opening covers two adjacent second sub-pixels of the display panel in the second direction and the spacing between the two second sub-pixels;

[0118] 03. Form the third sub-pixels of the display panel by using a third mask plate. The third mask plate includes at least one third opening, and each third opening covers two adjacent third sub-pixels of the display panel in the second direction and the spacing between the two third sub-pixels.

[0119] In the manufacturing method of the embodiment of the present application, each opening of the mask plate corresponds to two adjacent sub-pixels, which can improve the product yield. The three sub-pixels together form an independent pixel unit 12. Inside the pixel unit 12, the center connection lines of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 14 are triangular, and the numbers of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 14 are the same, realizing the Real RGB pixel arrangement, which can not only improve the resolution of the display panel 10 but also reduce the process difficulty. By arranging the second sub-pixel 124 and the third sub-pixel 126 along the first direction, two adjacent pixel units 12 in the second direction are mirror-symmetrical, so that the first sub-pixels 122 of two adjacent pixel units 12 in the second direction are adjacent to each other, or the second sub-pixels 124 of two adjacent pixel units 12 in the second direction are adjacent to each other and the third sub-pixels 126 are adjacent to each other, which is beneficial to the aperture ratio of the sub-pixels and improves the display life of the display panel. In addition, it is also beneficial to make the virtual light-emitting centers of the pixel units more evenly distributed in the vertical direction and on a horizontal line in the horizontal virtual center, so that the granularity display of the pixel units is more uniform and the display image quality is ensured to be uniform.

[0120] 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 this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0121] Although the embodiments of this 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 purposes of this application, and the scope of this application is defined by the claims and their equivalents.

Claims

1. A display panel, characterized in that, It includes a plurality of pixel units arranged in an array. Each pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. The center connection lines of the first sub-pixel, the second sub-pixel, and the third sub-pixel within the pixel unit are arranged in a triangular shape. The pixel units are arranged along a first direction and a second direction. The second sub-pixel and the third sub-pixel are arranged along the first direction. The first sub-pixels of two adjacent pixel units in the second direction are adjacent to each other, or the second sub-pixels of two adjacent pixel units in the second direction are adjacent to each other and the third sub-pixels are adjacent to each other. The distances between the three sub-pixels in the second direction of the pixel unit and the corresponding adjacent sub-pixels are partially the same and partially different. The distance between the second sub-pixel in the second direction of the pixel unit and the corresponding adjacent second sub-pixel is equal to the distance between the third sub-pixel in the second direction of the pixel unit and the corresponding adjacent third sub-pixel. The distance between the first sub-pixel in the second direction of the pixel unit and the corresponding adjacent first sub-pixel is less than the distance between the second sub-pixel in the second direction of the pixel unit and the corresponding adjacent second sub-pixel.

2. The display panel according to claim 1, characterized in that, The center of the triangle formed by the center connection lines of the first sub-pixel, the second sub-pixel, and the third sub-pixel is the light-emitting center of the pixel unit.

3. The display panel according to claim 2, wherein The light-emitting centers of the pixel units are arranged on the same straight line along the first direction.

4. The display panel according to claim 1, wherein The first sub-pixel, the second sub-pixel, and the third sub-pixel are all quadrilateral or pentagonal.

5. The display panel according to claim 4, wherein The first sub-pixel, the second sub-pixel, and the third sub-pixel all include at least one right angle.

6. The display panel according to claim 5, wherein The right-angled sides of the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively arranged along directions parallel to the first direction and the second direction.

7. The display panel according to claim 4, wherein The corners of the first sub-pixel, the second sub-pixel, and the third sub-pixel are designed with rounded corners.

8. The display panel according to claim 4, wherein The sides of the first sub-pixel are parallel to the opposite sides of the adjacent first sub-pixel, second sub-pixel, and third sub-pixel. The sides of the second sub-pixel are parallel to the opposite sides of the adjacent first sub-pixel, second sub-pixel, and third sub-pixel. The sides of the third sub-pixel are parallel to the opposite sides of the adjacent first sub-pixel, second sub-pixel, and third sub-pixel.

9. The display panel according to claim 1, wherein The light-emitting color of the first sub-pixel is different from the light-emitting color of the second sub-pixel and the light-emitting color of the third sub-pixel.

10. The display panel according to claim 9, wherein The first sub-pixel is a blue sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel is a green sub-pixel.

11. The display panel according to claim 1, wherein For two adjacent pixel units in the second direction, the perpendicular bisector of the center connection line of the two first sub-pixels adjacent to each other in the second direction is mirror-symmetrical, or the perpendicular bisector of the center connection line of the two second sub-pixels adjacent to each other in the second direction is mirror-symmetrical, or the perpendicular bisector of the center connection line of the two third sub-pixels adjacent to each other in the second direction is mirror-symmetrical.

12. The display panel according to claim 11, wherein In the pixel unit, a side of the first sub-pixel relative to the second sub-pixel forms a preset angle with the first direction.

13. The display panel according to claim 1, wherein The first sub-pixel includes a first side parallel to the first direction. The first sides of two adjacent first sub-pixels arranged adjacent to each other in the second direction are relatively parallel. The distance between the first sub-pixels in the second direction in the pixel unit and the corresponding adjacent first sub-pixels is the distance between the first sides of two adjacent first sub-pixels.

14. The display panel according to claim 1, wherein The second sub-pixel includes a second side parallel to the first direction. The second sides of two adjacent second sub-pixels arranged adjacent to each other in the second direction are relatively parallel. The distance between the second sub-pixels in the second direction in the pixel unit and the corresponding adjacent second sub-pixels is the distance between the second sides of two adjacent second sub-pixels.

15. The display panel according to claim 1, wherein The third sub-pixel includes a third side parallel to the first direction. The third sides of two adjacent third sub-pixels arranged adjacent to each other in the second direction are relatively parallel. The distance between the third sub-pixels in the second direction in the pixel unit and the corresponding adjacent third sub-pixels is the distance between the third sides of two adjacent third sub-pixels.

16. The display panel according to claim 1, characterized in that, The first sub-pixel includes a fourth side opposite to the second sub-pixel in an adjacent pixel unit. The second sub-pixel includes a fifth side opposite to the first sub-pixel in an adjacent pixel unit. The fourth side and the fifth side are parallel to the second direction.

17. The display panel according to claim 1, characterized in that, The display panel is an OLED display panel.

18. A mask assembly for manufacturing the display panel according to any one of claims 1-17, characterized in that, The mask assembly includes: A first mask plate, the first mask plate includes a first substrate and at least one first opening formed in the first substrate. Each first opening covers two adjacent first sub-pixels arranged in the second direction on the display panel and the distance between the two first sub-pixels. A second mask plate, the second mask plate includes a second substrate and at least one second opening formed in the second substrate. Each second opening covers two adjacent second sub-pixels arranged in the second direction on the display panel and the distance between the two second sub-pixels. A third mask plate, the third mask plate includes a third substrate and at least one third opening formed in the third substrate. Each third opening covers two adjacent third sub-pixels arranged in the second direction on the display panel and the distance between the two third sub-pixels.

19. The mask assembly according to claim 18, wherein, The stretching direction of the mask assembly corresponds to the second direction in the display panel.

20. The mask assembly according to claim 18, wherein, The first opening, the second opening, and the third opening are all in a hexagonal shape.

21. A display device, characterized in that, Including the display panel according to any one of claims 1-17.

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