Display panel, mask assembly and display device

Abstract

The present invention provides a display panel, a mask assembly and a display device. The display panel includes a plurality of pixel units distributed in an array, the pixel units include a first pixel unit and a second pixel unit, the first pixel unit is located in an odd column, the second pixel unit is located in an even column, and the first pixel unit and the second pixel unit are centrally symmetrical about a first straight line, each pixel unit includes two first color sub-pixels, one second color sub-pixel and one third color sub-pixel, and two first color sub-pixels share one second color sub-pixel and one third color sub-pixel to form two sub-pixel units. Thus, by utilizing the principle of sub-pixel borrowing, the second color sub-pixel and the third color sub-pixel in each pixel unit in the display panel are shared by two first color sub-pixels, which can effectively improve the resolution and effectively compensate for the partial picture loss caused by fewer sub-pixels, which is conducive to improving the display effect.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel, a mask assembly for manufacturing sub-pixels in the display panel, and a display device. Background Art

[0002] OLED display technology has rapidly increased its market share of display devices due to its wide color gamut, fast response speed, wide viewing angle, and flexibility. However, with the rapid development of products in the fields of mobile phones, wearables, VR, and the challenges of future micro LED display technology, it is necessary to design and produce higher quality and higher resolution OLED display devices. The luminescent materials of each sub-pixel of OLED are evaporated on the position of the corresponding color sub-pixel on the array substrate through a precision metal mask (FMM). At present, as people's requirements for the resolution of display devices become higher and higher, the requirements for pixel arrangement structures and precision metal masks used to form the light-emitting layer are also getting higher and higher. However, for high-resolution OLED, the fine metal mask (FMM) is one of the key technologies that restrict its development. The production of FMM for evaporation becomes more and more difficult as the pixel density (ppi) increases. At the same time, due to the increase in ppi, the distance between the sub-pixel luminous areas becomes smaller and smaller, and the probability of poor color mixing will also increase.

[0003] Therefore, research on display panels needs to be further deepened. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to some extent. To this end, one object of the present invention is to provide a display panel that can help to manufacture a high-resolution display panel, or facilitate the manufacture of a FMM used for evaporating a light-emitting layer in the display panel.

[0005] In one aspect of the present invention, the present invention provides a display panel. According to an embodiment of the present invention, the display panel includes a plurality of pixel units arranged in an array, the pixel units include a first pixel unit and a second pixel unit, the first pixel unit is located in an odd column, the second pixel unit is located in an even column, or the first pixel unit is located in an even column, the second pixel unit is located in an odd column, and the first pixel unit and the second pixel unit are centrally symmetrical about a first straight line, wherein the pixel unit includes two first color sub-pixels, one second color sub-pixel and one third color sub-pixel, and two first color sub-pixels share one second color sub-pixel and one third color sub-pixel to form two sub-pixel units. Thus, by using the principle of sub-pixel borrowing, the second color sub-pixel and the third color sub-pixel in each pixel unit in the display panel are shared by two first color sub-pixels (sub-pixel rendering (Sub-Pixel Rendering, SPR) technology), which can effectively improve the resolution, and can effectively make up for the partial picture loss caused by fewer sub-pixels, which is conducive to improving the display effect.

[0006] According to an embodiment of the present invention, the first pixel unit is in the shape of an inverted triangle, and the second pixel unit is in the shape of an equilateral triangle.

[0007] According to an embodiment of the present invention, two of the first color sub-pixels and one of the third color sub-pixels in the same pixel unit are respectively located at three corners of a triangle.

[0008] According to an embodiment of the present invention, in the pixel units located in the same row, a first color sub-pixel in the first pixel unit and a third color sub-pixel in the second pixel unit are arranged adjacent to each other.

[0009] According to an embodiment of the present invention, in the pixel units located in the same row, the line connecting the geometric centers of all second color sub-pixels is a first fold line, and the line connecting the geometric centers of all third color sub-pixels is a second fold line, and the first fold line and the second fold line intersect.

[0010] According to an embodiment of the present invention, in two pixel units located in the same row, a line connecting the geometric centers of one of the first color sub-pixels and the second color sub-pixel in the first pixel unit is defined as a first line, and a line connecting the geometric centers of one of the first color sub-pixels and the second color sub-pixel in the second pixel unit is defined as a second line, and a line connecting the geometric centers of the other first color sub-pixel and the second color sub-pixel is defined as a third line, wherein the first line and the second line are parallel to each other, and the first line and the third line intersect.

[0011] According to an embodiment of the present invention, in two pixel units located in the same row, a line connecting the geometric centers of one of the first color sub-pixels and the third color sub-pixel in the first pixel unit is defined as a fourth line, and a line connecting the geometric centers of one of the first color sub-pixels and the third color sub-pixel in the second pixel unit is defined as a fifth line, and a line connecting the geometric centers of the other first color sub-pixel and the third color sub-pixel is defined as a sixth line, wherein the fourth line and the fifth line are parallel to each other, and the fourth line intersects with the sixth line.

[0012] According to an embodiment of the present invention, projections of the first pixel unit and the second pixel unit adjacent to each other and located in the same row in the column direction at least partially overlap.

[0013] According to an embodiment of the present invention, one of the first color sub-pixels in the second pixel unit in the i-th row and j-th column is arranged adjacent to one of the first color sub-pixels in the first sub-pixel unit in the i+1-th row and j-1-th column, and another of the first color sub-pixels in the second pixel unit in the i-th row and j-th column is arranged adjacent to the first color sub-pixel in the first sub-pixel unit in the i+1-th row and j+1-th column, where i is a positive integer greater than or equal to 0, and j is a positive integer greater than or equal to 0 and is an even number.

[0014] According to an embodiment of the present invention, the light-emitting layer in one of the first color sub-pixels in the second pixel unit in the i-th row and j-th column and the light-emitting layer in one of the first color sub-pixels in the first sub-pixel unit in the i+1-th row and j-1-th column are an integrated structure, and the light-emitting layer in another of the first color sub-pixels in the second pixel unit in the i-th row and j-th column and the light-emitting layer in the first color sub-pixel in the first sub-pixel unit in the i+1-th row and j+1-th column are an integrated structure.

[0015] According to an embodiment of the present invention, the first color sub-pixel, the second color sub-pixel and the third color sub-pixel all have a symmetry axis.

[0016] According to an embodiment of the present invention, the shapes of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are independently triangle, quadrilateral, pentagon or hexagon.

[0017] In another aspect of the present invention, the present invention provides a mask assembly for manufacturing the display panel described above. According to an embodiment of the present invention, the mask assembly includes a first precision metal mask, a second precision metal mask and a third precision metal mask, wherein the first precision metal mask has a plurality of first openings, the first openings are used for evaporation to form a first color sub-pixel, and each of the first openings is evaporated to form a first color sub-pixel, the first opening used for evaporation to form the first color sub-pixel in the first pixel unit is defined as the first sub-opening, and the first opening used for evaporation to form the first color sub-pixel in the second pixel unit is defined as the second sub-opening, wherein the first sub-opening and the second sub-opening are centrally symmetrical about the first straight line; the second precision metal mask has a plurality of second openings, the second openings are used for evaporation to form a second color sub-pixel, and each of the second openings is evaporated to form a The second color sub-pixel is defined as the third sub-opening for evaporating the second color sub-pixel in the first pixel unit, and the fourth sub-opening for evaporating the second color sub-pixel in the second pixel unit, wherein the third sub-opening and the fourth sub-opening are centrally symmetrical about the first straight line; the third precision metal mask has a plurality of third openings, the third openings are used to evaporate to form the third color sub-pixel, and each of the third openings evaporates to form one third color sub-pixel, the third opening used to evaporate the third color sub-pixel in the first pixel unit is defined as the fifth sub-opening, and the third opening used to evaporate the third color sub-pixel in the second pixel unit is defined as the sixth sub-opening, wherein the fifth sub-opening and the sixth sub-opening are centrally symmetrical about the first straight line. Thus, it is helpful to reduce the difficulty of manufacturing the precision metal mask, thereby helping to reduce the cost, and at the same time, a high-resolution display panel can be manufactured.

[0018] According to an embodiment of the present invention, in the first precision metal mask, two adjacent first openings in the column direction are connected to each other.

[0019] In another aspect of the present invention, the present invention provides a display device. According to an embodiment of the present invention, the display panel includes the display panel described above. Thus, the display device has a higher resolution. The display device includes all the features and advantages of the display panel described above, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a schematic diagram of the arrangement of sub-pixels in a display panel according to an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of the arrangement of sub-pixels in a display panel in another embodiment of the present invention;

[0023] Figure 3 is a schematic diagram of the arrangement of sub-pixels in a display panel in another embodiment of the present invention;

[0024] Figure 4 is a schematic diagram of the arrangement of sub-pixels in a display panel in another embodiment of the present invention;

[0025] Figure 5 is a schematic diagram of the arrangement of sub-pixels in a display panel in another embodiment of the present invention;

[0026] Figure 6 is a schematic diagram of the arrangement of sub-pixels in a display panel in another embodiment of the present invention;

[0027] Figure 7 is a schematic diagram of the arrangement of sub-pixels in a display panel in another embodiment of the present invention;

[0028] Figure 8 is a schematic diagram of the arrangement of sub-pixels in a display panel in another embodiment of the present invention;

[0029] Fig. 9 It is a schematic structural diagram of a first precision metal mask in another embodiment of the present invention;

[0030] Fig.10 It is a schematic structural diagram of a second precision metal mask in another embodiment of the present invention;

[0031] Fig.11 It is a schematic structural diagram of a third precision metal mask in yet another embodiment of the present invention;

[0032] Fig.12 It is a schematic structural diagram of a first precision metal mask in yet another embodiment of the present invention. DETAILED DESCRIPTION

[0033] The scheme of the present invention will be explained below in conjunction with embodiments. It will be appreciated by those skilled in the art that the following embodiments are only used to illustrate the present invention and should not be considered as limiting the scope of the present invention. Where specific techniques or conditions are not indicated in the embodiments, the techniques or conditions described in the literature in this area or the product specifications are followed.

[0034] In one aspect of the present invention, the present invention provides a display panel. Figure 1The display panel includes a plurality of pixel units arranged in an array, the pixel units include a first pixel unit 11 and a second pixel unit 12, the first pixel unit 11 is located in an odd column, and the second pixel unit 12 is located in an even column (the figure takes the first pixel unit 11 being located in an odd column and the second pixel unit 12 being located in an even column as an example), or the first pixel unit is located in an even column, the second pixel unit is located in an odd column, and the first pixel unit 11 and the second pixel unit 12 are centrally symmetric about a first straight line X, wherein the pixel unit includes two first color sub-pixels 21, one second color sub-pixel 22 and one third color sub-pixel 23 (that is, in the entire display panel, the number ratio of the first color sub-pixels, the second color sub-pixels and the third color sub-pixels is 2:1:1), and the two first color sub-pixels 21 share one second color sub-pixel 22 and one third color sub-pixel 23 to form two sub-pixel units. Therefore, by utilizing the sub-pixel borrowing principle, the second color sub-pixel and the third color sub-pixel in each pixel unit in the display panel are shared by two first color sub-pixels (Sub-Pixel Rendering (SPR) technology), which can effectively improve the resolution and effectively make up for the partial picture loss caused by fewer sub-pixels, which is beneficial to improving the display effect.

[0035] It should be noted that, refer to Figure 1 The first pixel unit 11 and the second pixel unit 12 are centrally symmetrical about the first straight line X. There are two situations in which the first straight line x, the axis of symmetry between two adjacent first pixel units and second pixel units, is centrally symmetrical, and the first straight lines x of the two situations intersect.

[0036] According to an embodiment of the present invention, referring to Figure 1 , the first pixel unit 11 is an inverted triangle, and the second pixel unit 12 is an equilateral triangle. This is conducive to the reasonable layout of multiple pixel units, and more pixel units are sequentially arranged in a certain space to improve the resolution of the display panel. In some embodiments, the projections of the first pixel unit 11 and the second pixel unit 12 adjacent to each other in the same row in the column direction at least partially overlap. This can further improve the resolution of the display panel, especially when the first pixel unit and the second pixel unit are inverted triangles and equilateral triangles, respectively. Figure 1 As shown, the arrangement of pixel units can be more densely arranged to improve the resolution.

[0037] It should be noted that the above-mentioned "equilateral triangle" does not specifically refer to an equilateral triangle, but is relative to an "inverted triangle". The above-mentioned equilateral triangle and inverted triangle may be an equilateral triangle, an isosceles triangle or an irregular triangle, and those skilled in the art may flexibly design according to actual conditions.

[0038] According to an embodiment of the present invention, referring to Figure 1 , two first color sub-pixels 21 and one third color sub-pixel 23 in the same pixel unit are respectively located at three corners of a triangle. Thus, the arrangement positions of the four sub-pixels can be better arranged in the triangular pixel unit, the space can be more reasonably utilized, and the good display quality of the display panel can be ensured.

[0039] According to an embodiment of the present invention, referring to Figure 1 In the pixel units located in the same row, a first color sub-pixel 21 in the first pixel unit 11 and a third color sub-pixel 23 in the second pixel unit 12 are arranged adjacent to each other. Thus, the above arrangement can realize the centrosymmetric arrangement of the first pixel unit and the second pixel unit.

[0040] According to an embodiment of the present invention, referring to Figure 2 In the pixel units located in the same row, the line connecting the geometric centers of all the second color sub-pixels 22 is the first fold line 221, and the line connecting the geometric centers of all the third color sub-pixels 23 is the second fold line 231, and the first fold line 221 intersects the second fold line 231. Thus, the reasonable layout of each pixel can be effectively achieved, and the pixel arrangement density can be improved.

[0041] According to an embodiment of the present invention, referring to Figure 3 , in two pixel units located in the same row, the first pixel unit 11 is defined as a line connecting the geometric center of one first color sub-pixel 21 and the geometric center of the second color sub-pixel 22 as the first line 201, and the second pixel unit 12 is defined as a line connecting the geometric center of one first color sub-pixel 21 and the geometric center of the second color sub-pixel 22 as the second line 202, and the other line connecting the geometric center of the first color sub-pixel 21 and the geometric center of the second color sub-pixel 22 as the third line 203, wherein the first line 201 and the second line 202 are parallel to each other, and the first line 201 and the third line 203 intersect. It should be noted that the above-mentioned "intersection" can refer to the direct intersection of two lines, or the intersection through an extended line, for example, the intersection of the above-mentioned first line 201 and the third line 203 refers to the intersection of the extended lines of the first line 201 and the third line 203.

[0042] According to an embodiment of the present invention, referring to Figure 4, in two pixel units located in the same row, the line connecting the geometric center of one of the first color sub-pixels 21 and the geometric center of the third color sub-pixel 23 in the first pixel unit 11 is defined as the fourth line 204, and the line connecting the geometric center of one of the first color sub-pixels 21 and the geometric center of the third color sub-pixel 23 in the second pixel unit 12 is defined as the fifth line 205, and the line connecting the geometric center of the other first color sub-pixel 21 and the geometric center of the third color sub-pixel 23 is defined as the sixth line 206, wherein the fourth line 204 and the fifth line 205 are parallel to each other, and the fourth line 204 and the sixth line 206 intersect. Similarly, it should be noted that the above-mentioned "intersection" can refer to the direct intersection of two lines, or the intersection through an extended line, for example, the intersection of the above-mentioned fourth line 204 and the sixth line 206 refers to the intersection of the extended lines of the fourth line 204 and the sixth line 206.

[0043] According to an embodiment of the present invention, referring to Figure 5 , a first color sub-pixel in the second pixel unit of the i-th row and j-th column is arranged adjacent to a first color sub-pixel in the first sub-pixel unit of the i+1-th row and j-1-th column, and another first color sub-pixel in the second pixel unit of the i-th row and j-th column is arranged adjacent to the first color sub-pixel in the first sub-pixel unit of the i+1-th row and j+1-th column (e.g. Figure 5 ), wherein i is a positive integer greater than or equal to 0, and j is a positive integer greater than or equal to 0 and is an even number. In some specific embodiments, referring to Figure 6 , the light-emitting layer in a first color sub-pixel in the second pixel unit in the i-th row and j-th column is an integrated structure with the light-emitting layer in a first color sub-pixel in the first sub-pixel unit in the i+1-th row and j-1-th column, and the light-emitting layer in another first color sub-pixel in the second pixel unit in the i-th row and j-th column is an integrated structure with the light-emitting layer in the first color sub-pixel in the first sub-pixel unit in the i+1-th row and j+1-th column. As a result, not only the arrangement of the first color sub-pixels can be better arranged, but also when the light-emitting layers of the two adjacent first color sub-pixels are evaporated, they can be evaporated through an opening of the FMM, thereby reducing the difficulty of manufacturing the FMM.

[0044] According to an embodiment of the present invention, the first color sub-pixel, the second color sub-pixel and the third color sub-pixel all have a symmetry axis, which is not only convenient for the manufacture of FMM, but also beneficial for the evaporation of sub-pixels and the uniformity of the light emission of the display panel, and also beneficial for the arrangement of each sub-pixel to increase pixel density.

[0045] According to an embodiment of the present invention, the shapes of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are independently triangles (such as equilateral triangles, equal triangles or irregular triangles), quadrilaterals (such as rectangles, parallelograms, trapezoids or irregular trapezoids), pentagons (equilateral pentagons or irregular pentagons) or hexagons (equilateral hexagons or irregular hexagons). Those skilled in the art can flexibly set the specific shapes of the three color sub-pixels according to the specific requirements for the opening ratios (or area ratios) of different sub-pixels and the actual conditions such as the arrangement requirements between sub-pixels.

[0046] According to an embodiment of the present invention, the first color sub-pixel is a green sub-pixel, the second color sub-pixel is a blue sub-pixel, and the third color sub-pixel is a red sub-pixel. Figures 1 to 6 , the aperture ratio of the blue sub-pixel is relatively large, and the aperture ratio ratio of the red pixel R, the green sub-pixel G and the blue sub-pixel B is 1:1:4; in other specific embodiments, refer to Figure 7 , the aperture ratio of the green sub-pixel is larger than that of the red sub-pixel, and the aperture ratio ratio of the red pixel R, the green sub-pixel G and the blue sub-pixel B is 1:2:3; Figure 8 The aperture ratio of the red sub-pixel is larger than that of the green sub-pixel, and the aperture ratio ratio of the red pixel R, the green sub-pixel G and the blue sub-pixel B is 2:1:3.

[0047] In another aspect of the present invention, the present invention provides a mask assembly for manufacturing the display panel described above. Figures 9 to 11 (To produce Figures 1 to 6 Taking the mask assembly of the sub-pixel in the display panel as an example), the mask assembly includes a first precision metal mask 100, a second precision metal mask 200 and a third precision metal mask 300, wherein:

[0048] Reference Fig. 9 The first precision metal mask 100 has a plurality of first openings 110, the first openings 110 are used for vapor deposition to form first color sub-pixels, and each first opening 110 is vapor deposited to form a first color sub-pixel, the first opening 110 used for vapor deposition of the first color sub-pixel in the first pixel unit is defined as the first sub-opening 111, and the first opening 110 used for vapor deposition of the first color sub-pixel in the second pixel unit is defined as the second sub-opening 112, wherein the first sub-opening 111 and the second sub-opening 112 are centrally symmetric about the first straight line x.

[0049] Reference Fig.10The second precision metal mask 200 has a plurality of second openings 220, the second openings 220 are used for vapor deposition to form second color sub-pixels, and each second opening 220 is vapor deposited to form a second color sub-pixel, the second opening 220 used for vapor deposition of the second color sub-pixel in the first pixel unit is defined as the third sub-opening 211, and the second opening 220 used for vapor deposition of the second color sub-pixel in the second pixel unit is defined as the fourth sub-opening 222, wherein the third sub-opening 211 and the fourth sub-opening 222 are centrally symmetric about the first straight line x.

[0050] Reference Fig.11 The third precision metal mask 300 has a plurality of third openings 330, the third openings are used for evaporation to form third color sub-pixels, and each third opening 330 is evaporated to form a third color sub-pixel, the third opening 330 used for evaporation to form the third color sub-pixel in the first pixel unit is defined as the fifth sub-opening 331, and the third opening 330 used for evaporation to form the third color sub-pixel in the second pixel unit is defined as the sixth sub-opening 332, wherein the fifth sub-opening and the sixth sub-opening are centrally symmetric about the first straight line x.

[0051] According to the embodiment of the present invention, by using the above-mentioned mask assembly to evaporate the light-emitting material, it is helpful to reduce the difficulty of manufacturing a precision metal mask, thereby helping to reduce costs, and at the same time, a high-resolution display panel can be manufactured.

[0052] According to an embodiment of the present invention, referring to Fig.12 In the first precision metal mask 100, two adjacent first openings 110 in the column direction are connected, that is, the two first openings 110 that are closest to each other in the column direction are connected, that is, the two first openings for evaporating two adjacent first color sub-pixels in two adjacent first sub-pixel units in the column direction are connected. Thus, the manufacturing difficulty of the first precision metal mask 100 can be reduced, and a first color sub-pixel in the second pixel unit of the i-th row and j-th column obtained by evaporation is an integral sub-pixel with a first color sub-pixel in the first sub-pixel unit of the i+1-th row and j-1-th column, and another first color sub-pixel in the second pixel unit of the i-th row and j-th column is an integral sub-pixel with a first color sub-pixel in the first sub-pixel unit of the i+1-th row and j+1-th column. Figure 6 shown.

[0053] In another aspect of the present invention, the present invention provides a display device. According to an embodiment of the present invention, the display panel includes the display panel described above. Thus, the display device has a higher resolution. The display device includes all the features and advantages of the display panel described above, which will not be repeated here.

[0054] Those skilled in the art will understand that, in addition to the display panel described above, the display panel also includes the necessary structures or components of a conventional display panel, such as a substrate (glass or polymer substrate), a pixel circuit structure such as a thin film transistor, an encapsulation film, a color filter, a glass cover plate and other structures.

[0055] According to the embodiments of the present invention, there is no special requirement for the specific type of display device using the display panel, and those skilled in the art can flexibly select according to actual needs. In some embodiments, the specific type of display device using the display panel includes but is not limited to mobile phones, notebooks, iPads, kindles, televisions, and other display devices with display and camera functions.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0057] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A display panel, characterized in that: A plurality of pixel units arranged in an array are included, wherein the pixel units include a first pixel unit and a second pixel unit, wherein the first pixel unit is located in an odd column and the second pixel unit is located in an even column, or the first pixel unit is located in an even column and the second pixel unit is located in an odd column, and the first pixel unit and the second pixel unit are centrally symmetrical about a first straight line, Wherein, the pixel unit includes two first color sub-pixels, one second color sub-pixel and one third color sub-pixel, and the two first color sub-pixels share one second color sub-pixel and one third color sub-pixel to form two sub-pixel units; One of the first color sub-pixels in the second pixel unit in the i-th row and j-th column is arranged adjacent to one of the first color sub-pixels in the first sub-pixel unit in the i+1-th row and j-1-th column, and another of the first color sub-pixels in the second pixel unit in the i-th row and j-th column is arranged adjacent to the first color sub-pixel in the first sub-pixel unit in the i+1-th row and j+1-th column, wherein i is a positive integer greater than or equal to 0, and j is a positive integer greater than or equal to 0 and is an even number; The first color sub-pixel, the second color sub-pixel, and the third color sub-pixel each have a symmetry axis.

2. The display panel according to claim 1, characterized in that: The first pixel unit is in the shape of an inverted triangle, and the second pixel unit is in the shape of an equilateral triangle.

3. The display panel according to claim 2, characterized in that: The two first color sub-pixels and one third color sub-pixel in the same pixel unit are respectively located at three corners of a triangle.

4. The display panel according to any one of claims 1 to 3, characterized in that: In the pixel units located in the same row, a first color sub-pixel in the first pixel unit and a third color sub-pixel in the second pixel unit are arranged adjacent to each other.

5. The display panel according to any one of claims 1 to 3, characterized in that: In the pixel units located in the same row, a line connecting geometric centers of all second color sub-pixels is a first fold line, a line connecting geometric centers of all third color sub-pixels is a second fold line, and the first fold line and the second fold line intersect.

6. The display panel according to any one of claims 1 to 3, characterized in that: In two pixel units located in the same row, a line connecting the geometric center of one of the first color sub-pixels and the geometric center of the second color sub-pixel in the first pixel unit is defined as a first line, a line connecting the geometric center of one of the first color sub-pixels and the geometric center of the second color sub-pixel in the second pixel unit is defined as a second line, and a line connecting the geometric center of the other first color sub-pixel and the geometric center of the second color sub-pixel is defined as a third line, The first connecting line and the second connecting line are parallel to each other, and the first connecting line and the third connecting line intersect.

7. The display panel according to any one of claims 1 to 3, characterized in that: In two pixel units located in the same row, a line connecting the geometric center of one of the first color sub-pixels and the geometric center of the third color sub-pixel in the first pixel unit is defined as a fourth line, a line connecting the geometric center of one of the first color sub-pixels and the geometric center of the third color sub-pixel in the second pixel unit is defined as a fifth line, and a line connecting the geometric center of the other first color sub-pixel and the geometric center of the third color sub-pixel is defined as a sixth line, The fourth connecting line and the fifth connecting line are parallel to each other, and the fourth connecting line intersects with the sixth connecting line.

8. The display panel according to any one of claims 1 to 3, characterized in that: The projections of the first pixel unit and the second pixel unit adjacent to each other in the same row in the column direction at least partially overlap.

9. The display panel according to claim 1, characterized in that: The light-emitting layer in one of the first color sub-pixels in the second pixel unit in the i-th row and j-th column and the light-emitting layer in one of the first color sub-pixels in the first sub-pixel unit in the i+1-th row and j-1-th column are an integrated structure, and the light-emitting layer in another of the first color sub-pixels in the second pixel unit in the i-th row and j-th column and the light-emitting layer in the first color sub-pixel in the first sub-pixel unit in the i+1-th row and j+1-th column are an integrated structure.

10. The display panel according to any one of claims 1 to 3, characterized in that: The shapes of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are independently triangle, quadrilateral, pentagon or hexagon.

11. A mask assembly for manufacturing a display panel according to any one of claims 1 to 10, characterized in that: It includes a first precision metal mask, a second precision metal mask and a third precision metal mask, wherein: The first precision metal mask has a plurality of first openings, the first openings are used to form first color sub-pixels by vapor deposition, and each of the first openings forms one first color sub-pixel by vapor deposition, the first opening used to vapor deposit the first color sub-pixel in the first pixel unit is defined as a first sub-opening, and the first opening used to vapor deposit the first color sub-pixel in the second pixel unit is defined as a second sub-opening, wherein the first sub-opening and the second sub-opening are centrally symmetrical about the first straight line; The second precision metal mask has a plurality of second openings, the second openings are used to form second color sub-pixels by evaporation, and each second opening forms one second color sub-pixel by evaporation, the second opening used to evaporate the second color sub-pixel in the first pixel unit is defined as a third sub-opening, and the second opening used to evaporate the second color sub-pixel in the second pixel unit is defined as a fourth sub-opening, wherein the third sub-opening and the fourth sub-opening are centrally symmetrical about the first straight line; The third precision metal mask has multiple third openings, and the third openings are used for vapor deposition to form third color sub-pixels, and each of the third openings forms one third color sub-pixel by vapor deposition. The third opening used for vapor deposition of the third color sub-pixel in the first pixel unit is defined as the fifth sub-opening, and the third opening used for vapor deposition of the third color sub-pixel in the second pixel unit is defined as the sixth sub-opening, wherein the fifth sub-opening and the sixth sub-opening are centrally symmetrical about the first straight line.

12. The mask assembly according to claim 11, characterized in that: In the first precision metal mask, two adjacent first openings in the column direction are connected to each other.

13. A display device, characterized in that: A display panel comprising any one of claims 1-10.

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