Pixel arrangement structure, mask plate and display panel

Abstract

The present invention discloses a pixel arrangement structure, a mask plate and a display panel. The pixel arrangement structure includes: pixel units arranged in an array, each pixel unit includes four sub-pixels of different colors, each sub-pixel is an N-gon, and in one pixel unit, the connection line of the centers of the four sub-pixels is a rhombus, wherein N≥4 and is a positive integer; the connection line of the centers of the four sub-pixels of the same color in adjacent pixel units is a rectangle. By setting four sub-pixels of different colors, the picture can be brighter and the colors can be more vivid. On the other hand, by making the connection line of the centers of the four sub-pixels in one pixel unit a rhombus, and the connection line of the centers of the four sub-pixels of the same color in adjacent pixel units a rectangle, the uniformity of the distribution of each sub-pixel is improved, thereby improving the uniformity of the light emission of the pixel arrangement structure. At the same time, the above arrangement form can also reduce the arrangement gap between each sub-pixel, and improve the pixel density and resolution.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic products, and in particular relates to a pixel arrangement structure, a mask plate and a display panel. Background Art

[0002] With the advancement of technology, digital display devices such as smart phones and tablet computers have been widely used, among which display panels are indispensable interpersonal communication interfaces in these display devices. For example, organic light emitting diode (OLED) display panels have the advantages of self-luminescence, energy saving and consumption reduction, bendability, good flexibility, etc., and the display device that realizes display does not require a backlight source, has the characteristics of fast response speed and good display effect, and has attracted the attention of users and is widely used in terminal products such as smart phones and tablet computers.

[0003] The pixel arrangement structure of the existing display panel is limited by the arrangement form and size and cannot meet the demand for higher pixel density. The picture has a jagged effect and the user experience is relatively poor.

[0004] Therefore, a new pixel arrangement structure, mask plate and display panel are urgently needed. Summary of the invention

[0005] The embodiments of the present invention provide a pixel arrangement structure, a mask plate and a display panel. By setting four sub-pixels of different colors, the picture can be made brighter and the colors more vivid. On the other hand, by making the connection line of the centers of the four sub-pixels in a pixel unit diamond-shaped, and the connection line of the centers of the four sub-pixels of the same color in adjacent pixel units rectangular, the uniformity of the distribution of each sub-pixel is improved, thereby improving the uniformity of the light emission of the pixel arrangement structure. At the same time, the above arrangement form can also reduce the arrangement gap between each sub-pixel, thereby improving the pixel density and resolution.

[0006] On the one hand, an embodiment of the present invention provides a pixel arrangement structure, including: pixel units arranged in an array, each of the pixel units including four sub-pixels of different colors, each of the sub-pixels is an N-gon, and in one of the pixel units, the line connecting the centers of the four sub-pixels is a rhombus, wherein N≥4 and is a positive integer; the line connecting the centers of the four sub-pixels of the same color in adjacent pixel units is a rectangle.

[0007] According to one aspect of the present invention, the pixel unit includes a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel; the light-emitting area of ​​the blue sub-pixel is larger than the light-emitting area of ​​the red sub-pixel, and the light-emitting area of ​​the red sub-pixel is larger than the green sub-pixel and the white sub-pixel.

[0008] According to one aspect of the present invention, a ratio of light emitting areas of the blue sub-pixel, the red sub-pixel, the green sub-pixel, and the white sub-pixel is 3:2:1:1.

[0009] According to one aspect of the present invention, the minimum distance between two adjacent sub-pixels is less than or equal to 0.005 mm.

[0010] According to one aspect of the present invention, a line connecting the centers of four sub-pixels of the same color in adjacent pixel units forms a square.

[0011] According to one aspect of the present invention, a line connecting the centers of four adjacent sub-pixels in two adjacent pixel units is in a rhombus shape.

[0012] According to one aspect of the present invention, in a rhombus formed by a line connecting the centers of the four sub-pixels, one of two adjacent internal angles of the rhombus is 60°, and the other is 120°.

[0013] According to one aspect of the present invention, each of the sub-pixels is in a regular hexagon.

[0014] Another aspect of an embodiment of the present invention provides a mask plate for preparing the pixel arrangement structure in any of the above embodiments.

[0015] Another aspect of the embodiments of the present invention provides a display panel, including the pixel arrangement structure in any of the above embodiments.

[0016] Compared with the prior art, the pixel arrangement structure provided in the embodiment of the present invention includes pixel units arranged in an array, each pixel unit includes four sub-pixels of different colors. Compared with the prior art which only has sub-pixels of three colors, the pixel unit in this embodiment can make the picture brighter and the colors more vivid by setting four sub-pixels of different colors. On the other hand, by making the connection line between the centers of the four sub-pixels in a pixel unit diamond-shaped, and the connection line between the centers of the four sub-pixels of the same color in adjacent pixel units rectangular, the uniformity of the distribution of each sub-pixel is improved, thereby improving the uniformity of the light emission of the pixel arrangement structure. At the same time, the above arrangement form can also reduce the arrangement gap between the sub-pixels, thereby improving the pixel density and resolution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1is a structural schematic diagram of a pixel arrangement structure provided by an embodiment of the present invention;

[0019] Figure 2 is a schematic structural diagram of a pixel unit provided by an embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of a light-emitting process of a pixel unit provided by an embodiment of the present invention;

[0021] Figure 4 is a schematic diagram of a pixel unit light-emitting process provided by another embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of a pixel unit light-emitting process provided by another embodiment of the present invention;

[0023] Figure 6 is a schematic diagram of a pixel unit light-emitting process provided by another embodiment of the present invention;

[0024] Figure 7 It is a structural schematic diagram of a pixel arrangement structure provided by another embodiment of the present invention.

[0025] In the attached figure:

[0026] P-pixel unit; R-red sub-pixel; G-green sub-pixel; B-blue sub-pixel; W-white sub-pixel; X-first direction; Y-second direction. DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0029] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0030] It is obvious to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Therefore, the present invention is intended to cover modifications and variations of the present invention that fall within the scope of the corresponding claims (technical solutions claimed for protection) and their equivalents. It should be noted that the implementation methods provided in the embodiments of the present invention can be combined with each other without contradiction.

[0031] The following will be combined with the attached drawings Figures 1 to 7 Various embodiments of a pixel arrangement structure, a mask plate, and a display panel are described.

[0032] The display panel provided in the embodiment of the present invention may be an organic light-emitting diode (OLED) display panel, a liquid crystal panel or a micro flat panel display panel (Micro-OLED or Micro-LED), etc. The following embodiments are described by taking the display panel as an OLED display panel as an example.

[0033] See also Figure 1 to Figure 2 , Figure 1 is a structural schematic diagram of a pixel arrangement structure provided by an embodiment of the present invention; Figure 2 Schematic diagram of the structure of a pixel unit P provided by an embodiment of the present invention.

[0034] A pixel arrangement structure provided by an embodiment of the present invention includes: pixel units P arranged in an array, each pixel unit P includes four sub-pixels of different colors, each sub-pixel is an N-gon, and in one pixel unit P, the line connecting the centers of the four sub-pixels is a rhombus, where N≥4 and is a positive integer; the line connecting the centers of four sub-pixels of the same color in adjacent pixel units P is a rectangle.

[0035] The pixel arrangement structure provided in the embodiment of the present invention includes pixel units P arranged in an array, each pixel unit P includes four sub-pixels of different colors. Compared with the prior art in which only three colors of sub-pixels are provided, the pixel unit P in this embodiment can make the picture brighter and the colors more vivid by providing four sub-pixels of different colors. On the other hand, by making the connection line between the centers of the four sub-pixels in one pixel unit P diamond-shaped, and the connection line between the centers of the four sub-pixels of the same color in adjacent pixel units P rectangular, the uniformity of the distribution of each sub-pixel is improved, thereby improving the uniformity of the light emission of the pixel arrangement structure. At the same time, the above arrangement form can also reduce the arrangement gap between the sub-pixels, thereby improving the pixel density and resolution.

[0036] In this embodiment, each sub-pixel is an N-gon, N≥4 and is a positive integer. For example, when N=4, each sub-pixel can be a quadrilateral in the shape of a rectangle, trapezoid, etc., and when N=6, each sub-pixel is a hexagon. It can be understood that the more sides each sub-pixel has, the less obvious the edge angle of each sub-pixel will be. For example, the edge angle of a hexagonal sub-pixel is weaker than that of a quadrilateral sub-pixel. The hexagonal sub-pixel can significantly reduce the jaggedness of the displayed image.

[0037] The pixel units P are arranged in an array. Specifically, the pixel units P can be arranged along a first direction X and a second direction Y respectively. The first direction X and the second direction Y intersect. Optionally, the first direction X and the second direction Y are perpendicular to each other.

[0038] In some optional embodiments, the pixel unit P includes a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B and a white sub-pixel W; the light-emitting area of ​​the blue sub-pixel B is larger than the light-emitting area of ​​the red sub-pixel R, and the light-emitting area of ​​the red sub-pixel R is larger than the light-emitting areas of the green sub-pixel G and the white sub-pixel W.

[0039] It can be understood that the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B can emit red light, green light, and blue light respectively, and the red light, green light, and blue light are mixed to obtain white light, and the white sub-pixel W in this embodiment can directly emit white light. This embodiment adds a white sub-pixel W to the standard red, blue, and green primary color sub-pixels, which can make the picture brighter and the colors more vivid on the one hand, and on the other hand, the addition of the white sub-pixel W greatly improves the luminous efficiency, and consumes less power when the picture brightness is equal. In this embodiment, each pixel unit P is composed of four color sub-pixels, which adds a new dimension to the color of the display panel, thereby greatly expanding the color gamut that can be achieved when the display panel is displayed, and realizing brilliant and realistic colors.

[0040] Taking into account that the organic light-emitting materials used for the red sub-pixel R, the green sub-pixel G, the blue sub-pixel B and the white sub-pixel W are different, and their respective brightness decay times are also inconsistent, the inventors have found through research that the time required for the brightness decay of the red sub-pixel R, the green sub-pixel G, the blue sub-pixel B and the white sub-pixel W is ranked as follows: white sub-pixel W>green sub-pixel G>red sub-pixel R>blue sub-pixel B, that is, the brightness of the blue sub-pixel B decays the fastest. In order to prevent the pixel arrangement structure from having uneven light emission after being used for a period of time after being applied to the display panel, the present embodiment adjusts the light-emitting area of ​​each sub-pixel according to the brightness decay time of the sub-pixels of each color, so that the light-emitting area of ​​the blue sub-pixel B is larger than the light-emitting area of ​​the red sub-pixel R, and the light-emitting area of ​​the red sub-pixel R is larger than the light-emitting areas of the green sub-pixel G and the white sub-pixel W, that is, the light-emitting area of ​​the blue sub-pixel B is the largest, so as to compensate for the brightness decay problem of the blue sub-pixel B caused by the light-emitting material after being used for a period of time.

[0041] Furthermore, the light emitting area of ​​the white sub-pixel W is the same as the light emitting area of ​​the green sub-pixel G.

[0042] See also Figures 2 to 6 Optionally, the light emitting process of the red sub-pixel R, the green sub-pixel G, the blue sub-pixel B and the white sub-pixel W is as follows:

[0043] When displaying black, the red sub-pixel R, the green sub-pixel G, the blue sub-pixel B and the white sub-pixel W are all turned off, and the display is pure black, grayscale 0, such as Figure 3 As shown;

[0044] When displaying red, the blue sub-pixel B and the green sub-pixel G are turned off, and the red sub-pixel R and the white sub-pixel W are turned on. At this time, the image appears bright red, as shown in Figure 1. Figure 4 As shown;

[0045] When displaying blue, the green sub-pixel G and the red sub-pixel R are turned off, and the blue sub-pixel B and the white sub-pixel W are turned on. At this time, the image appears bright blue, as shown in FIG. Figure 5 As shown;

[0046] When displaying green, the blue sub-pixel B and the red sub-pixel R are turned off, and the green sub-pixel G and the white sub-pixel W are powered on. At this time, the image appears bright green, as shown in Figure 1. Figure 6 As shown;

[0047] When displaying white, the red sub-pixel R, the green sub-pixel G, the blue sub-pixel B and the white sub-pixel W are all powered, and the display is bright pure white with a grayscale of 255. Figure 2 As shown;

[0048] When displaying white, the brightness of the four sub-pixels, red sub-pixel R, green sub-pixel G, blue sub-pixel B and white sub-pixel W, is controlled by the current of each sub-pixel. The smaller the current, the lower the brightness, so that the combination is gray;

[0049] Displaying other colors: The brightness of the four sub-pixels, namely, the red sub-pixel R, the green sub-pixel G, the blue sub-pixel B and the white sub-pixel W, is controlled by the current of each sub-pixel to display the corresponding colors.

[0050] When the pixel arrangement structure provided in the embodiment of the present invention is applied to an OLED display panel, the red sub-pixel R, the green sub-pixel G, the blue sub-pixel B and the white sub-pixel W all include a stacked anode layer, a light-emitting layer and a cathode layer. Since the material of the anode layer is generally a material with a high work function, in order to improve the hole injection efficiency, it can be gold (Au), platinum (Pt), titanium (Ti), silver (Ag), indium tin oxide (ITO)-silver (Ag)-indium tin oxide (ITO), etc.

[0051] Optionally, in the present embodiment, the anode layer uses an opaque material, such as a metal material such as silver. At the same time, the red sub-pixel R, green sub-pixel G, blue sub-pixel B and white sub-pixel W are also electrically connected to the corresponding pixel circuits to achieve the luminous display of the red sub-pixel R, green sub-pixel G, blue sub-pixel B and white sub-pixel W.

[0052] In some optional embodiments, the ratio of the light emitting areas of the blue sub-pixel B, the red sub-pixel R, the green sub-pixel G, and the white sub-pixel W is 3:2:1:1.

[0053] It can be understood that the ratio of the light-emitting areas of the blue sub-pixel B, the red sub-pixel R, the green sub-pixel G, and the white sub-pixel W needs to be determined based on the time required for the brightness of the red sub-pixel R, the green sub-pixel G, the blue sub-pixel B, and the white sub-pixel W to decay and the uniformity of the light emission of the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B. That is, the light-emitting areas of the blue sub-pixel B and the red sub-pixel R should not exceed the light-emitting areas of the green sub-pixel G and the white sub-pixel W by too much, otherwise it may cause color deviation. When preparing the pixel arrangement structure, each sub-pixel can be formed by evaporation of the mask plate. The aperture ratio of the mask plate can be designed according to the ratio of the light-emitting areas of the blue sub-pixel B, the red sub-pixel R, the green sub-pixel G, and the white sub-pixel W to be 3:2:1:1. After evaporation, a pixel unit P is composed of 4 blue sub-pixels B, red sub-pixels R, green sub-pixels G, and white sub-pixels W, which effectively solves the problem of uneven light emission and color deviation of the display panel after a period of use.

[0054] Of course, the ratio of the luminous areas of the blue sub-pixel B, the red sub-pixel R, the green sub-pixel G and the white sub-pixel W may also adopt other values, as long as they can compensate for the brightness attenuation differences of sub-pixels of different colors caused by the luminescent materials after being used for a period of time.

[0055] In some optional embodiments, each sub-pixel is in the shape of a regular hexagon.

[0056] It is understandable that the pixel unit P formed by the regular hexagonal sub-pixels is similar to a honeycomb structure, which can increase pixel density, increase display brightness, and make light emission more uniform. Since the edges and corners of the regular hexagonal sub-pixels are relatively less obvious, the jagged feeling of the displayed image can be reduced.

[0057] In order to further improve the pixel density per unit area in the pixel arrangement structure, in some optional embodiments, the minimum distance between two adjacent sub-pixels is less than or equal to 0.005 mm.

[0058] It should be noted that in the prior art, various pixel arrangements, such as RGB-stripe, V-Style, Pentile, diamond, etc., the spacing between sub-pixels is relatively large, and the spacing is usually greater than 0.01mm. The peak brightness of the display may not reach the highest due to the large spacing between sub-pixels. The pixel arrangement in the embodiment of the present invention can achieve a minimum distance between two adjacent sub-pixels of less than or equal to 0.005mm, so as to increase the pixel density per unit area and enhance the peak brightness of the display.

[0059] In some optional embodiments, a line connecting the centers of four sub-pixels of the same color in adjacent pixel units P forms a square.

[0060] It can be understood that, since the four sides of the square are equal, when the line connecting the centers of four sub-pixels of the same color in adjacent pixel units P forms a square, it can ensure that the sub-pixels of the same color are evenly distributed in different directions, for example, in the first direction X and the second direction Y. The four sub-pixels of the same color in adjacent pixel units P can specifically be sub-pixels of the same color in four adjacent pixel units P arranged along the first direction X and the second direction Y, respectively.

[0061] For example, the lines connecting the centers of the white sub-pixels W in four adjacent pixel units P can be made into a square to improve the uniformity of the distribution of the white sub-pixels W. Of course, the lines connecting the centers of at least one of the sub-pixels of other colors, such as the blue sub-pixel B, the red sub-pixel R, and the green sub-pixel G, can also be made into a square to further improve the luminous uniformity of the entire pixel arrangement structure.

[0062] Optionally, a line connecting centers of four adjacent sub-pixels in two adjacent pixel units P is in a diamond shape.

[0063] It can be understood that, since the lines connecting the centers of the four sub-pixels in the pixel unit P are also in a rhombus shape, the rhombus formed by the lines connecting the centers of the four adjacent sub-pixels in two adjacent pixel units P can be connected with the rhombus formed by the lines connecting the centers of the four sub-pixels in the pixel unit P to form a parallelogram, thereby improving the compactness of the sub-pixel arrangement.

[0064] See also Figure 7 In some optional embodiments, in a rhombus formed by a line connecting the centers of four sub-pixels, one of two adjacent internal angles of the rhombus is 60°, and the other is 120°.

[0065] It should be noted that the four vertices of the rhombus are the centers of the four sub-pixels. By adjusting the relative positions of the four sub-pixels, the size of the internal angle of the formed rhombus can be adjusted. The inventors have experimentally found that when one of the two adjacent internal angles of the rhombus is 60° and the other is 120°, and the line connecting the centers of the white sub-pixels W in the four adjacent pixel units P is a square, the distribution of the sub-pixels in the pixel arrangement structure is more reasonable and uniform, thereby making the light emission more uniform. Specifically, as shown in the figure, θ1 = 60°, θ2 = 120°, and θ3 = 90°.

[0066] In some optional embodiments, opposite sides of adjacent sub-pixels are arranged parallel to each other.

[0067] It is understandable that when the opposite sides of adjacent sub-pixels are parallel to each other, the distance between the parallel sides of adjacent sub-pixels is equal everywhere, which is convenient for adjusting the distance between adjacent sub-pixels, thereby improving the pixel density. At the same time, the opposite sides of adjacent sub-pixels are parallel to each other, which can also improve the regularity of the sub-pixel arrangement and facilitate the arrangement of the sub-pixels.

[0068] An embodiment of the present invention further provides a mask plate for preparing the pixel arrangement structure in any of the above embodiments.

[0069] Optionally, it includes: a first mask plate having a first opening, the first opening is used to form a red sub-pixel R corresponding to the pixel unit P in the pixel arrangement structure; a second mask plate having a second opening, the second opening is used to form a blue sub-pixel B corresponding to the pixel unit P in the pixel arrangement structure; a third mask plate having a third opening, the third opening is used to form a green sub-pixel G corresponding to the pixel unit P in the pixel arrangement structure; a fourth mask plate having a fourth opening, the fourth opening is used to form a white sub-pixel W corresponding to the pixel unit P in the pixel arrangement structure.

[0070] Optionally, when the green sub-pixel G and the white sub-pixel W have the same shape and size, the green sub-pixel G and the white sub-pixel W may be prepared using the same mask plate to reduce production costs and improve production efficiency.

[0071] An embodiment of the present invention further provides a display panel, comprising the pixel arrangement structure in any of the above embodiments.

[0072] The display panel provided by the embodiment of the present invention has the technical effects of the technical solution of the pixel arrangement structure in any of the above embodiments, and the explanations of the structures and terms that are the same as or corresponding to the above embodiments are not repeated here.

[0073] The display panel provided in the embodiment of the present invention can be applied to mobile phones, or any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiment of the present invention does not make any special limitations on this.

[0074] The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

[0075] It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in a different order from the embodiments, or several steps can be performed simultaneously.

Claims

1. A pixel arrangement structure, characterized in that: include: Pixel units arranged in an array, each of the pixel units includes four sub-pixels of different colors, the pixel units include a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel, the light-emitting area of ​​the blue sub-pixel is larger than the light-emitting area of ​​the red sub-pixel, the light-emitting area of ​​the red sub-pixel is larger than the light-emitting area of ​​the green sub-pixel and the white sub-pixel, each of the sub-pixels is an N-gon, and in one of the pixel units, the line connecting the centers of the four sub-pixels is a rhombus, wherein N ≥ 4 and is a positive integer; A line connecting the centers of four sub-pixels of the same color in adjacent pixel units is in the form of a rectangle.

2. The pixel arrangement structure according to claim 1, characterized in that: The ratio of the light emitting areas of the blue sub-pixel, the red sub-pixel, the green sub-pixel, and the white sub-pixel is 3:2:1:

1.

3. The pixel arrangement structure according to claim 1, characterized in that: The minimum distance between two adjacent sub-pixels is less than or equal to 0.005 mm.

4. The pixel arrangement structure according to claim 1, characterized in that: A line connecting the centers of four sub-pixels of the same color in adjacent pixel units forms a square.

5. The pixel arrangement structure according to claim 1, characterized in that: A line connecting the centers of four adjacent sub-pixels in two adjacent pixel units is in a rhombus shape.

6. The pixel arrangement structure according to claim 1, characterized in that: In a rhombus formed by a line connecting the centers of the four sub-pixels, one of two adjacent internal angles of the rhombus is 60°, and the other is 120°.

7. The pixel arrangement structure according to claim 1, characterized in that: Each of the sub-pixels is in a regular hexagon.

8. A mask plate, characterized in that: Used to prepare the pixel arrangement structure according to any one of claims 1 to 7.

9. A display panel, characterized in that: Comprising the pixel arrangement structure as described in any one of claims 1 to 7.

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