Pixel arrangement structure, display substrate and mask assembly

Abstract

The present disclosure relates to a pixel arrangement structure, a display substrate and a mask assembly. The pixel arrangement structure comprises a pixel group formed by first sub-pixels, second sub-pixels and third sub-pixels being uniformly distributed and spliced with each other. The pixel group has a regular polygonal shape. At least one side edge of the first sub-pixel has a groove, and at least part of the second sub-pixels and at least part of the third sub-pixels are arranged in the groove. The pixel arrangement structure, the display substrate and the mask assembly can improve the display resolution of the display device while ensuring the display effect of the display device and improving the production yield of the display device and the corresponding mask.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and in particular to a pixel arrangement structure, display substrate, and mask assembly. Background Technology

[0002] Organic light-emitting diodes (OLEDs) have been widely used in the display field due to their advantages such as self-illumination, high contrast and low power consumption.

[0003] Currently, the most mature and mass-produced OLED colorization technology uses a vapor deposition process, employing a fine metal mask (FMM) to deposit the light-emitting material layer for each sub-pixel. However, with the continuous improvement of display resolution, the pixel density of each sub-pixel in display devices using OLEDs as light-emitting devices is constantly increasing. The fabrication of fine metal masks is extremely difficult, especially as display resolutions increase, leading to a large number of apertures in the masks, further complicating production and making them very expensive. Furthermore, defects in the fine metal mask can cause color mixing and other defects in organic electroluminescent displays. The more fine metal masks used, the more likely product defects will occur, thus reducing product yield. Summary of the Invention

[0004] Therefore, it is necessary to provide a pixel arrangement structure, a display substrate, and a mask assembly to ensure the display effect of the display device while improving the display resolution, and to improve the production yield of the display device and the corresponding mask.

[0005] According to one aspect of the present disclosure, a pixel arrangement structure is provided. The pixel arrangement structure includes: a plurality of pixel groups. Each pixel group is composed of a first sub-pixel, a second sub-pixel, and a third sub-pixel that are uniformly distributed and interlocked. The pixel group has a regular polygonal shape. The first sub-pixel has a groove on at least one edge, and at least a portion of the second sub-pixel and at least a portion of the third sub-pixel are disposed within the groove.

[0006] In this embodiment, by designing the shapes of the first, second, and third sub-pixels, it is advantageous to combine and arrange multiple sub-pixels with different emission colors and the same or different shapes, so that each sub-pixel is spliced ​​together to form a pixel group with a regular polygonal shape, and the first, second, and third sub-pixels are evenly distributed within the pixel group. This facilitates the splicing of multiple pixel groups using the regular shape of the pixel group, ensuring that each sub-pixel is evenly distributed within a single pixel group and within the pixel arrangement area. Furthermore, the splicing between the first, second, and third sub-pixels can be achieved by setting a groove on at least one edge of the first sub-pixel, and placing at least a portion of the second and at least a portion of the third sub-pixels within the groove. This allows for mutual color compensation between different sub-pixels within the same pixel arrangement area by increasing the size of adjacent portions, effectively improving the jaggedness and graininess of the displayed image caused by pixel arrangement.

[0007] Therefore, the pixel arrangement structure provided in this disclosure can be applied to display devices with high display resolution to reduce color unevenness and eliminate color mixing while ensuring high display resolution, thereby improving the display effect and production yield. Furthermore, in this disclosure, the sub-pixels within each pixel group are spliced ​​in the aforementioned manner, which also helps to reduce the requirement for increasing pixel density when improving display resolution, thereby reducing the process precision required for the mask used to prepare high-resolution display devices and improving the mask production yield.

[0008] Furthermore, the pixel arrangement structure provided in the above embodiments is particularly suitable for flexible display devices. For example, when a flexible display device is stretched or bent, this pixel arrangement structure also helps to ensure that the color display effect of the display device remains unchanged, that is, to eliminate color shift and have a high color fidelity effect.

[0009] In some embodiments, the plurality of pixel groups are arranged in rows along a first direction and in columns along a second direction perpendicular to the first direction.

[0010] Optionally, the pixel groups located in adjacent rows are arranged in parallel.

[0011] Optionally, the pixel groups located in adjacent rows are symmetrical about the row boundary line.

[0012] Optionally, the pixel groups located in adjacent rows are fitted together.

[0013] In this embodiment of the disclosure, the structure of the pixel group is as described above, and the shape of the pixel group is a regular polygon, which is beneficial to achieving a variety of pixel group arrangement methods.

[0014] In some embodiments, multiple pixel groups are spliced ​​together to form repeating units, and the repeating units are regular polygons.

[0015] Optionally, the plurality of repeating units are arranged in rows along a first direction and in columns along a second direction perpendicular to the first direction; wherein repeating units in adjacent rows are aligned; or, repeating units in adjacent rows are staggered.

[0016] Optionally, the repeating units in adjacent rows are staggered, and the distance by which the repeating units in adjacent rows are staggered along the first direction is less than or equal to the size of the first sub-pixel in the first direction.

[0017] In this embodiment, the structure of the pixel group is as described above. Multiple pixel groups can be spliced ​​together to repeat according to the spliced ​​structure. That is, the pixel arrangement structure provided in this embodiment is not only based on the repetition of pixel groups, but can also be repeated using the structure after splicing multiple pixel groups, which is beneficial for diversifying the shape of the repeating unit. Furthermore, in this embodiment, the shape of the repeating unit is a regular polygon, which is beneficial for diversifying the arrangement of the repeating units.

[0018] In some embodiments, the first sub-pixel, the second sub-pixel, and the third sub-pixel are all regular polygons. The first sub-pixel has grooves on its opposite side edges. The second sub-pixel includes a first side and a second side and a third side adjacent to the first side. The second sub-pixel is located within the groove of the first sub-pixel, with the first side facing the bottom of the groove, and the second and third sides facing two side edges of the groove. The opposite side edges of the third sub-pixel are facing two side edges of the groove; wherein, the third sub-pixel is located on the side of the second sub-pixel away from the bottom of the groove, or the third sub-pixel and the second sub-pixel are located within the grooves on opposite sides of the first sub-pixel.

[0019] Optionally, the first sub-pixel is an H-shaped sub-pixel, and the second sub-pixel is a rectangular sub-pixel.

[0020] Optionally, the third sub-pixel is a T-shaped sub-pixel, which includes a horizontal portion and a vertical portion; the horizontal portion is located outside the corresponding end of the H-shaped sub-pixel, and the vertical portion is located within the groove.

[0021] Optionally, in the pixel group, the ratio of the number of the first sub-pixel, the second sub-pixel, and the third sub-pixel is 1:2:2; or, the ratio of the number of the first sub-pixel, the second sub-pixel, and the third sub-pixel is 1:1:1.

[0022] In some embodiments, multiple pixel groups are spliced ​​together to form repeating units. In a repeating unit, the first sub-pixel of different pixel groups emits a different color, the second sub-pixel of different pixel groups emits a different color, and the third sub-pixel of different pixel groups emits a different color.

[0023] Optionally, a plurality of repeating unit arrays are arranged, and a plurality of first sub-pixels are arranged in rows along a first direction and in columns along a second direction perpendicular to the first direction; wherein, the emission colors of the third sub-pixels corresponding to the first sub-pixels in the same column and adjacent row pixel groups are the same; or, the emission colors of the third sub-pixels corresponding to the first sub-pixels in the same column and adjacent row pixel groups are different.

[0024] In embodiments where the repeating unit is composed of multiple pixel groups, the repeating unit can have a wider range of shape and color combinations to further improve the display effect of the pixel arrangement structure in the display device, especially the color display effect of the flexible display device under stretching or bending conditions, as well as the deformation tolerance of the pixel arrangement structure.

[0025] In some embodiments, the first sub-pixel, the second sub-pixel, and the third sub-pixel are all regular polygons. The second sub-pixel and the third sub-pixel are arranged side by side, and at least a portion of the second sub-pixel and at least a portion of the third sub-pixel are embedded in the same groove. Each of the second and third sub-pixels includes a first side and a second and a third side respectively adjacent to the first side. The first sides of the second and third sub-pixels are respectively positioned opposite the bottom of the groove, the second sides of the second and third sub-pixels are respectively positioned opposite two side edges of the groove, and the third sides of the second and third sub-pixels are respectively positioned opposite each other.

[0026] Optionally, the first sub-pixel, the second sub-pixel, and the third sub-pixel are all H-shaped sub-pixels; or, the first sub-pixel, the second sub-pixel, and the third sub-pixel are all U-shaped sub-pixels.

[0027] Optionally, in the pixel group, the ratio of the number of the first sub-pixel, the second sub-pixel, and the third sub-pixel is 1:1:1.

[0028] In some embodiments, a plurality of pixel groups are arranged in a row along a first direction and in a column along a second direction perpendicular to the first direction; wherein two pixel groups located in the same row and any adjacent to each other are inverted and correspondingly interlocked.

[0029] In some embodiments, the first sub-pixel, the second sub-pixel, and the third sub-pixel have the same shape; wherein, any two adjacent sub-pixels located in the same row emit different colors.

[0030] According to another aspect of the present disclosure, a display substrate is provided. The display substrate includes the pixel arrangement structure described in some of the above embodiments.

[0031] According to another aspect of the embodiments of this disclosure, a mask assembly is provided for fabricating the pixel arrangement structure described in some of the above embodiments. The mask assembly includes a first mask, a second mask, and a third mask. The first mask is used to fabricate a first sub-pixel, a second sub-pixel, and a third sub-pixel that emits a first color and are located in different pixel groups. The second mask is used to fabricate a first sub-pixel, a second sub-pixel, and a third sub-pixel that emits a second color and are located in different pixel groups. The third mask is used to fabricate a first sub-pixel, a second sub-pixel, and a third sub-pixel that emits a third color and are located in different pixel groups.

[0032] The mask assembly provided in this embodiment adopts the structure described above. It can utilize the first, second, and third masks to sequentially prepare sub-pixels corresponding to the emitted light color, thereby completing the pixel arrangement structure described in some of the aforementioned embodiments. Furthermore, by matching the aforementioned pixel arrangement structure with the mask assembly, the processing precision of each mask can be appropriately reduced, thereby improving the mask preparation yield and saving production costs. Attached Figure Description

[0033] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0034] Figure 1 This is a schematic diagram of a pixel arrangement structure in one embodiment of the present disclosure;

[0035] Figure 2 This is a schematic diagram of another pixel arrangement structure in one embodiment of the present disclosure;

[0036] Figure 3 This is a schematic diagram of another pixel arrangement structure in one embodiment of the present disclosure;

[0037] Figure 4 This is a schematic diagram of the decomposition of a pixel group according to an embodiment of the present disclosure;

[0038] Figure 5This is a schematic diagram of the decomposition of another pixel group in one embodiment of the present disclosure;

[0039] Figure 6 This is a schematic diagram of the decomposition of another pixel group in one embodiment of the present disclosure;

[0040] Figure 7 This is a schematic diagram of the decomposition of another pixel group in one embodiment of the present disclosure;

[0041] Figure 8 This is a schematic diagram of the structure of a repeating unit in one embodiment of the present disclosure;

[0042] Figure 9 for Figure 8 A schematic diagram of the shape of each sub-pixel in the repeating unit shown;

[0043] Figure 10 This is a schematic diagram of a pixel group corresponding fitting structure in one embodiment of the present disclosure;

[0044] Figure 11 This is a schematic diagram of another pixel arrangement structure in one embodiment of the present disclosure;

[0045] Figure 12 This is a schematic diagram of another pixel group corresponding fitting structure in one embodiment of the present disclosure;

[0046] Figure 13 This is a schematic diagram of another pixel arrangement structure in one embodiment of the present disclosure;

[0047] Figure 14 This is a schematic diagram of the structure of a mask assembly according to an embodiment of the present disclosure;

[0048] Figure 15 This is a schematic diagram of the structure of another mask assembly in one embodiment of the present disclosure;

[0049] Figure 16 This is a schematic diagram of the structure of another mask assembly in one embodiment of the present disclosure.

[0050] The reference numerals in the detailed embodiments are as follows:

[0051] Pixel group 1; first sub-pixel 11, second sub-pixel 12, third sub-pixel 13; horizontal part 131, vertical part 132;

[0052] The first side of the second sub-pixel 12 21 The second side l 22 and the third side l 23 ;

[0053] The first side of the third sub-pixel 13 31 The second side l 32 and the third side l33 ;

[0054] Repeating unit; first color subpixel P R Second color subpixel P G The third color subpixel P B ;

[0055] U-shaped sub-pixel 21, H-shaped sub-pixel 22; Groove G; Row boundary line L;

[0056] First mask 31, second mask 32, third mask 33;

[0057] The first opening is 311, the second opening is 321, and the third opening is 331. Detailed Implementation

[0058] To facilitate understanding of this disclosure, a more complete description will now be given with reference to the accompanying drawings, in which preferred embodiments of the present disclosure are shown. However, this disclosure may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the disclosure will be achieved.

[0059] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, this does not indicate any order, quantity, or importance, but is merely used to distinguish different components. These terms are used only to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. Words such as “comprising” or “including” mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0060] Organic light-emitting diodes (OLEDs) have been widely used in the display field due to their advantages such as self-illumination, high contrast, low power consumption, and flexible display.

[0061] Currently, the most mature and mass-produced OLED colorization technology uses a vapor deposition process, employing a fine metal mask (FMM) to deposit the light-emitting material layer for each sub-pixel. However, with the continuous improvement of display resolution, the pixel density of each sub-pixel in display devices using OLEDs as light-emitting devices is constantly increasing. The fabrication of fine metal masks is extremely difficult, especially as display resolutions increase, leading to a large number of apertures in the masks, further complicating production and making them very expensive. Furthermore, defects in the fine metal mask can cause color mixing and other defects in organic electroluminescent displays, and the more fine metal masks used, the more likely product defects will occur, thus reducing product yield.

[0062] This disclosure provides a pixel arrangement structure and a display substrate that can be applied to a display device to improve the display resolution of the display device while ensuring the display effect of the display device, thereby improving the production yield of the display device and the corresponding mask.

[0063] It is understandable that in the display substrate of a display device, the subpixel is the smallest display unit that can be divided to display the image. The setting position of each subpixel and its display color (that is, the pixel arrangement structure) can determine the final picture effect presented to the user.

[0064] Furthermore, those skilled in the art should know that, based on the pixel arrangement structure in the embodiments of this disclosure, each sub-pixel should be distributed as evenly as possible.

[0065] Please see Figures 1-3 This disclosure provides a pixel arrangement structure comprising multiple pixel groups 1. Each pixel group 1 is composed of a first sub-pixel 11, a second sub-pixel 12, and a third sub-pixel 13, which are evenly distributed and interconnected. The pixel group 1 has a regular polygonal shape.

[0066] Furthermore, optionally, such as Figure 2 and Figure 3 As shown, multiple pixel groups 1 are spliced ​​together to form a repeating unit, and the shape of the repeating unit is a regular polygon.

[0067] Here, a regular polygon refers to a polygon whose edges extend according to certain rules, and different polygons can be joined together according to certain rules to form a regular shape. For example, a regular polygon is a rectangle.

[0068] In addition, it should be noted that, Figure 1 The elliptical frame used to identify pixel group 1, and Figure 2 and Figure 3The elliptical outline used to identify the repeating unit is only for indicating the position of pixel group 1 and the repeating unit, and does not define the structure of pixel group 1 and the repeating unit. That is, the elliptical outline does not encompass the entire structure of the corresponding pixel group 1 or repeating unit, but only schematically indicates a portion of its structure. Similarly, in the following text... Figure 10 and Figure 12 The elliptical border used to identify pixel group 1 is set in the same way.

[0069] It is understood that pixels are used to achieve color display, and the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 in pixel group 1 can each have different emission colors. However, considering the various arrangements of pixel group 1, in some embodiments where the shapes of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 are all different, the first sub-pixel 11 in different pixel groups 1 within the same repeating unit can have different emission colors, the second sub-pixel 12 in different pixel groups 1 within the same repeating unit can have different emission colors, and the third sub-pixel 13 in different pixel groups 1 within the same repeating unit can have different emission colors. Therefore, for ease of description, according to the different emission colors, each sub-pixel in pixel group 1 can be further divided into first color sub-pixels P. R Second color subpixel P G and the third color subpixel P B Furthermore, in some of the following embodiments, the first color sub-pixel P R Red sub-pixel, second color sub-pixel P G The green sub-pixel and the third color sub-pixel P B The example used is the blue sub-pixel, but it is not limited to this.

[0070] It should be added that, in each pixel group 1 provided in the embodiments of this disclosure, the number of each of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 can be one or more. Furthermore, the shapes of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 can be the same or different. This disclosure does not limit this. That is to say, in each pixel group 1 provided in the embodiments of this disclosure, the arrangement of each sub-pixel can have many different implementations.

[0071] Based on the foregoing, please refer to Figures 4-7 In each pixel group 1, the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 are all regular polygons. The first sub-pixel 11 has a groove G on at least one side edge, and at least a portion of the second sub-pixel 12 and at least a portion of the third sub-pixel 13 are located within the groove G.

[0072] In one possible implementation, please combine Figure 1 , Figure 4 and Figure 5 Understandably, the first sub-pixel 11 has grooves G on its opposite two side edges. The second sub-pixel 12 includes a first edge l. 21 and with the first side l 21 The second adjacent edges l 22 and the third side l 23 The second sub-pixel 12 is located within the groove G of the first sub-pixel 11, and the first edge l 21 The second side l is disposed opposite to the bottom of the groove G. 22 and the third side l 23 The third sub-pixel 13 is disposed opposite to the two sides of the groove G. At least a portion of the third sub-pixel 13 is located within the groove G, and the opposite two sides of the third sub-pixel 13 (e.g., the second side 1) are respectively disposed opposite to the two sides of the groove G. 32 and the third side l 33 They are respectively positioned opposite to the two sides of the groove G.

[0073] Optionally, the third sub-pixel 13 is located on the side of the second sub-pixel 12 that is away from the bottom of the groove G. In pixel group 1, the ratio of the number of the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 is, for example, 1:2:2;

[0074] For example, please refer to Figure 4 The shapes of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 are different. Pixel group 1 includes one first sub-pixel 11, two second sub-pixels 12, and two third sub-pixels 13. Furthermore, the first sub-pixel 11 is an H-shaped sub-pixel, the second sub-pixel 12 is a rectangular sub-pixel, and the third sub-pixel 13 is a T-shaped sub-pixel.

[0075] Please continue reading. Figure 4 The H-shaped sub-pixel (i.e., the first sub-pixel 11) has grooves G on its opposite side edges. A rectangular sub-pixel (i.e., the second sub-pixel 12) is located within the grooves G of the H-shaped sub-pixel. The T-shaped sub-pixel (i.e., the third sub-pixel 13) includes a horizontal portion 131 and a vertical portion 132. The horizontal portion 131 is located outside the corresponding end of the H-shaped sub-pixel, and the vertical portion 132 is located within the grooves. The vertical portion 132 of the T-shaped sub-pixel includes a first side l. 31 and with the first side l 31 The second adjacent edges l 32 and the third side l 33 , where the second side l 32 and the third side l 33 They are respectively positioned opposite to the two sides of the groove G.

[0076] like Figure 5 As shown, optionally, the third sub-pixel 13 and the second sub-pixel 12 are located in the grooves G on opposite sides of the first sub-pixel 11. In pixel group 1, the ratio of the number of the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 is, for example, 1:1:1;

[0077] For example, please refer to Figure 5 The shapes of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 are different. Pixel group 1 includes a first sub-pixel 11, a second sub-pixel 12, and a third sub-pixel 13. Furthermore, the first sub-pixel 11 is an H-shaped sub-pixel, while the second sub-pixel 12 and the third sub-pixel 13 are both rectangular sub-pixels (or T-shaped sub-pixels).

[0078] Please continue reading. Figure 5 The H-shaped sub-pixel (i.e., the first sub-pixel 11) has grooves G on its opposite two sides. Two rectangular sub-pixels (i.e., the second sub-pixel 12 and the third sub-pixel 13) are located in the two grooves G of the H-shaped sub-pixel, respectively.

[0079] In another possible implementation, please combine Figure 6 and Figure 7 It is understood that the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 have the same shape. In pixel group 1, the ratio of the number of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 is, for example, 1:1:1; that is, pixel group 1 may include one first sub-pixel 11, one second sub-pixel 12, and one third sub-pixel 13. The second sub-pixel 12 and the third sub-pixel 13 are arranged side by side, and at least a portion of the second sub-pixel 12 and at least a portion of the third sub-pixel 13 are respectively embedded in the same groove G of the first sub-pixel 11.

[0080] Please continue reading. Figure 6 and Figure 7 The second sub-pixel 12 and the third sub-pixel 13 both include the first side (l 21 and l 31 ) and the second side (l) adjacent to the first side. 22 and l 32 ) and the third side (l 23 and l 33 The first edge (l) of the second sub-pixel 12 and the third sub-pixel 13 21 and l 31 The second sub-pixel 12 is respectively positioned opposite to the bottom of the groove G, and its second side l 22 and the second side l of the third sub-pixel 13 32 The third side l of the second sub-pixel 12 is respectively positioned opposite to the two sides of the groove G. 23and the third side l of the third sub-pixel 13 33 Relative settings.

[0081] Optionally, please refer to Figure 6 In pixel group 1, the first, second, and third sub-pixels are all U-shaped sub-pixels 21. Since the first, second, and third sub-pixels in this embodiment have the same shape, therefore... Figure 6 The sub-pixels within pixel group 1 are identified by their emission colors. For example, the first sub-pixel corresponds to the third color sub-pixel P. B The second sub-pixel corresponds to the second color sub-pixel P. G The third sub-pixel corresponds to the first color sub-pixel P. R Thus, the third color subpixel P B Second color subpixel P G and the first color subpixel P R One edge of each has a groove G.

[0082] Furthermore, the first, second, and third sub-pixels in pixel group 1 can have other correspondences with the color sub-pixels. The following illustration only uses the arrangement of the color sub-pixels as an example. For example, please refer to... Figure 6 Understood, the first color subpixel P within pixel group 1 R Second color subpixel P G and the third color subpixel P B The arrangement can be implemented in many different ways. For example, the first color subpixel P R Second color sub-pixel P G Adjacent arrangement, and the first color sub-pixel P R Second color sub-pixel P G The groove opening direction is the same as the third color sub-pixel P B The groove openings are in opposite directions; the first color sub-pixel P R Second color sub-pixel P G The third color sub-pixel P extends into the adjacent sidewall. B Within the groove G. But it's not limited to that. For example, the second color subpixel P G and the third color subpixel P B They can be arranged adjacently, and the second color subpixel P G and the third color subpixel P B The groove opening direction is the same as the first color sub-pixel P R The openings of the grooves are in opposite directions; the second color sub-pixel P G and the third color subpixel P B The adjacent sidewalls extend into the first color sub-pixel P R Within the groove G. Or, the first color subpixel P.R and the third color subpixel P B Adjacent arrangement, and the first color sub-pixel P R and the third color subpixel P B The opening direction is the same as that of the second color sub-pixel P. G The opening directions are opposite; the first color sub-pixel P R and the third color subpixel P B The second color sub-pixel P extends into the adjacent sidewall. G Inside the groove G.

[0083] Optionally, please refer to Figure 7 In pixel group 1, the first, second, and third sub-pixels are all H-shaped sub-pixels 22. Since the first, second, and third sub-pixels in this embodiment have the same shape, therefore... Figure 7 The sub-pixels within pixel group 1 are also identified by their emission colors. For example, the first sub-pixel corresponds to the second color sub-pixel P. G The second sub-pixel corresponds to the first color sub-pixel P. R The third sub-pixel corresponds to the third color sub-pixel P. B Thus, the second color subpixel P G First color subpixel P R and the third color subpixel P B Both opposite edges have grooves G.

[0084] Furthermore, the first, second, and third sub-pixels in pixel group 1 can have other correspondences with the color sub-pixels. The following illustration only uses the arrangement of the color sub-pixels as an example. For example, please refer to... Figure 7 Understood, the first color subpixel P within pixel group 1 R Second color subpixel P G and the third color subpixel P B The arrangement can be implemented in many different ways. For example, the first color subpixel P R and the third color subpixel P B Located in the second color sub-pixel P G Below; the first color subpixel P R and the third color subpixel P B The two adjacent sub-pixels are arranged side-by-side, and one end of the adjacent sidewall of each of the two adjacent sub-pixels extends into the second color sub-pixel P. G Within the corresponding groove G on the side. But it is not limited to this. For example, the first color sub-pixel P R Second color sub-pixel P G Located in the third color sub-pixel P B Below; the first color subpixel P RSecond color sub-pixel P G The two adjacent sub-pixels are arranged side-by-side, and one end of the adjacent sidewall of each of the two adjacent sub-pixels extends into the third color sub-pixel P. B Within the corresponding groove G on the side. Or, within the second color sub-pixel P. G and the third color subpixel P B Located in the first color sub-pixel P R Below, the second color subpixel P G and the third color subpixel P B The two sub-pixels are arranged adjacently, and one end of the adjacent sidewall of each of the two adjacent sub-pixels extends into the first color sub-pixel P. R Inside the groove G on the corresponding side.

[0085] Therefore, in the pixel group 1 provided in this embodiment, by designing the shapes of sub-pixels with different luminous colors (e.g., U-shaped, H-shaped, T-shaped, or rectangular), multiple sub-pixels with different luminous colors and the same or different shapes can be spliced ​​together, so that each sub-pixel splices together to form a pixel group 1 with a regular polygonal shape, and the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 are evenly distributed within the pixel group 1. Furthermore, the splicing between the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 can be achieved by setting a groove G on at least one edge of the first sub-pixel 11, and placing at least a portion of the second sub-pixel 12 and at least a portion of the third sub-pixel 13 within the groove G. In this way, by increasing the size of the adjacent portions between different luminous sub-pixels within the same pixel arrangement area, it is beneficial to achieve a uniform distribution of different sub-pixels and mutual color compensation between different sub-pixels, thereby effectively improving the jaggedness and graininess of the displayed image caused by the pixel arrangement. Therefore, the pixel arrangement structure provided in this embodiment can be applied to display devices with high display resolution to reduce the problem of uneven color display and eliminate color mixing while ensuring that the display device has high display resolution, thereby improving the display effect and production yield of the display device.

[0086] Furthermore, in this embodiment of the present disclosure, the sub-pixels within each pixel group 1 are spliced ​​together in the aforementioned manner, which also helps to reduce the requirement for increasing pixel density when improving display resolution, thereby reducing the process precision required for preparing photomasks for high display resolution display devices and improving the production yield of photomasks.

[0087] Furthermore, the pixel arrangement structure provided in the above embodiments is particularly suitable for flexible display devices. For example, when a flexible display device is stretched or bent, this pixel arrangement structure also helps to ensure excellent color display performance of the display device, that is, to eliminate color shift and have high color fidelity.

[0088] It should be added that, in some embodiments, multiple pixel groups 1 are spliced ​​together to form a repeating unit, and the shape of the repeating unit is a regular polygon. Furthermore, in the repeating unit, the first sub-pixel 11 of different pixel groups 1 has a different color, the second sub-pixel of different pixel groups has a different color, and the third sub-pixel of different pixel groups has a different color. Thus, to match pixel groups 1 with different structures in the aforementioned embodiments, the repeating unit can also have many different implementations.

[0089] In one possible implementation, please refer to Figure 2 and Figure 8 The repeating unit (Unit) comprises three pixel groups 1 arranged side-by-side. The first sub-pixel 11 in each pixel group 1 emits a different color; for example, the first sub-pixel 11 in the three side-by-side pixel groups 1 are sequentially the first color sub-pixel P. R Second color subpixel P G and the third color subpixel P B The second sub-pixel 12 in different pixel groups 1 emits different colors; for example, the second sub-pixel 12 in three pixel groups 1 arranged side by side is the third color sub-pixel P in sequence. B First color subpixel P R Second color sub-pixel P G The third sub-pixel 13 in different pixel groups 1 emits different colors; for example, the third sub-pixel 13 in three pixel groups 1 arranged side by side is sequentially the second color sub-pixel P. G Third color subpixel P B and the first color subpixel P R .

[0090] In this embodiment of the disclosure, compared to Figure 4 Pixel group 1 shown Figure 8 The repeating unit shown has a wider range of shape and color combinations, which can further rationally adjust the uniform distribution of different sub-pixels and their pixel opening area, so as to further improve the display effect of the pixel arrangement structure in the display device, especially the color display effect of the flexible display device under stretching or bending, as well as the deformation tolerance of the pixel arrangement structure.

[0091] Alternatively, in pixel group 1 where the first sub-pixel 11 is an H-shaped sub-pixel, the second sub-pixel 12 is a rectangular sub-pixel, and the third sub-pixel 13 is a T-shaped sub-pixel, the size relationship between the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 is as follows: Figure 9As shown in the diagram. The width of the groove G within the first sub-pixel 11 is D1, the width of the first sub-pixel 11 itself is D2, the distance between the two corresponding grooves G within the first sub-pixel 11 and the width of the portion of the first sub-pixel 11 that serves as the sidewall of the groove G are D3, and the length of the groove G within the first sub-pixel 11 is D4. The width of the second sub-pixel 12 is D1, and the width of the vertical portion 132 in the third sub-pixel 13 is D1, both the same as the width of the groove G within the first sub-pixel 11. The vertical portions 132 in the second sub-pixel 12 and the third sub-pixel 13 can be located within the corresponding groove G of the first sub-pixel 11 and arranged closely together. The length of the second sub-pixel 12 is D5, and the length of the vertical portion 132 in the third sub-pixel 13 is D6. The sum of these two lengths can be the same as the length of the groove G within the first sub-pixel 11, i.e., D5 + D6.

[0092] D6 = D4. Therefore, a first sub-pixel 11, a pair of second sub-pixels 12, and a pair of third sub-pixels 13 can be arranged into a rectangular pixel group 1.

[0093] It is understood that the H-shape, T-shape or U-shape mentioned in some of the above embodiments are all approximate descriptions, that is, the outline shape of the corresponding sub-pixel can be approximated as H-shape, T-shape and U-shape.

[0094] It is worth mentioning that the uniform distribution of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 within pixel group 1 can be represented as the uniform distribution of the corresponding luminous color region (i.e., pixel aperture area) within pixel group 1. For example, the first color sub-pixel P in each pixel group 1 R Total pixel aperture area, second color subpixel P G Total pixel aperture area and third color subpixel P B The total pixel aperture area is the same.

[0095] Here, in conjunction with the structure of pixel group 1 in some of the aforementioned embodiments, the first color sub-pixel P in each pixel group 1 R Second color subpixel P G and the third color subpixel P B The quantity can be one or more.

[0096] The first color subpixel P in each pixel group 1 R Second color subpixel P G and the third color subpixel P B In the example where the quantity is one, the first color sub-pixel P in each pixel group 1 R The total pixel aperture area is the first color sub-pixel P R The pixel aperture area, the second color subpixel P in each pixel group 1 GThe total pixel aperture area is the second color sub-pixel P G The pixel aperture area, the third color subpixel P in each pixel group 1 B The total pixel aperture area is the third color sub-pixel P B The pixel aperture area.

[0097] The first color subpixel P in each pixel group 1 R Second color subpixel P G and the third color subpixel P B In examples with multiple elements, the first color sub-pixel P in each pixel group 1 R The total pixel aperture area refers to all the first color subpixels P in pixel group 1. R The sum of the pixel aperture areas, the second color sub-pixel P in each pixel group 1 G The total pixel aperture area refers to all the second-color subpixels P in pixel group 1. G The sum of the pixel aperture areas, the third color sub-pixel P in each pixel group 1 B The total pixel aperture area refers to all third sub-pixels P in pixel group 1. B The sum of the pixel aperture areas.

[0098] In this embodiment of the present disclosure, sub-pixels of different emitting colors within each pixel group 1 adopt the aforementioned structure, and according to the different emitting colors, the first color sub-pixel P is made to... R Total pixel aperture area, second color subpixel P G Total pixel aperture area and third sub-pixel P B The total pixel aperture area is the same. This helps ensure that the areas of light-emitting regions with different light-emitting colors in the pixel arrangement structure are the same, so as to avoid color shift and further ensure the uniformity of the display color of the display device.

[0099] In summary, in the embodiments of this disclosure, the structure of pixel group 1 can be implemented in various ways, and correspondingly, the arrangement of each pixel group 1 or repeating unit in the pixel arrangement structure can also be different.

[0100] In some embodiments, multiple pixel groups 1 are arranged in rows along a first direction (e.g., the X direction) and in columns along a second direction perpendicular to the first direction (e.g., the Y direction). Optionally, pixel groups 1 in adjacent rows are arranged in parallel. Optionally, pixel groups 1 in adjacent rows are symmetrical about the row boundary line. Optionally, pixel groups 1 in adjacent rows are correspondingly interlocked. In this embodiment, the structure of pixel group 1 is as described above, and the shape of pixel group 1 is a regular polygon, which is beneficial for achieving diversity in pixel group arrangement.

[0101] In some embodiments, multiple pixel groups 1 are spliced ​​together to form repeating units, and the shape of the repeating unit is a regular polygon. Optionally, multiple repeating units are arranged in rows along a first direction (e.g., the X direction) and in columns along a second direction perpendicular to the first direction (e.g., the Y direction); wherein repeating units in adjacent rows are aligned; or, repeating units in adjacent rows are staggered.

[0102] Optionally, the repeating units in adjacent rows are staggered, and the distance of the staggered repeating units in adjacent rows along the first direction is less than or equal to the size of the first sub-pixel 11 in the first direction.

[0103] In this embodiment, the structure of pixel group 1 is as described above. Multiple pixel groups 1 can be spliced ​​together to repeat according to the spliced ​​structure. That is, the pixel arrangement structure provided in this embodiment is not only repeated according to pixel group 1, but can also be repeated using the structure after splicing multiple pixel groups 1, which is beneficial for diversifying the shape of the repeating unit. Furthermore, in this embodiment, the shape of the repeating unit is a regular polygon, which is beneficial for diversifying the arrangement of the repeating unit.

[0104] In some implementations, the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 have different shapes. Multiple pixel groups 1 or multiple repeating units are arranged in an array. Furthermore, multiple first sub-pixels 11 are arranged in rows along a first direction (e.g., the X direction) and in columns along a second direction perpendicular to the first direction (e.g., the Y direction).

[0105] Please see here. Figures 1-3 In some examples where the first sub-pixel 11 is an H-shaped sub-pixel, the second sub-pixel 12 is a rectangular sub-pixel, and the third sub-pixel is a T-shaped sub-pixel, pixel group 1 arranges its sub-pixels based on the first sub-pixel 11. Therefore, the arrangement of multiple pixel groups 1 can be defined by the arrangement of the first sub-pixel 11. Furthermore, sub-pixels of different emitting colors can be evenly distributed according to their pixel opening areas to ensure the display effect of the display device.

[0106] Optionally, such as Figure 1 As shown, adjacent first sub-pixels 11 in the same row emit different colors. For example, the first sub-pixels 11 in any row are arranged in a RGB color cycle.

[0107] Optionally, such as Figure 2 As shown, the third sub-pixel 13 corresponding to the first sub-pixel 11 in the same column and adjacent row pixel group 1 has the same emission color.

[0108] Optionally, such as Figure 3 As shown, adjacent row pixel groups 1 are staggered, for example, by the width dimension D1 of a first sub-pixel along the row direction. Thus, the third sub-pixel 13 corresponding to the first sub-pixel 11 in the same column and adjacent row pixel group 1 emits different colors.

[0109] In other embodiments, the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 have the same shape. Multiple pixel groups 1 are arranged in rows along a first direction (e.g., the X direction) and in columns along a second direction perpendicular to the first direction (e.g., the Y direction). Pixel groups 1 in adjacent rows are symmetrical about the row boundary line; and any two adjacent pixel groups 1 in the same row are inverted and interlocked. Alternatively, pixel groups 1 in adjacent rows are interlocked, and any two adjacent pixel groups 1 in the same row are inverted and interlocked. Furthermore, optionally, the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 are all polygonal sub-pixels; wherein any two adjacent polygonal sub-pixels in the same row emit different colors.

[0110] For example, please refer to Figure 10 and Figure 11 To facilitate differentiation, based on the emission color of each sub-pixel, the first sub-pixel in pixel group 1 is designated as the third color sub-pixel P. B The second sub-pixel is the second color sub-pixel P. G The third sub-pixel is the first color sub-pixel P. R Explanation follows. First color subpixel P R Second color subpixel P G and the third color subpixel P B All are U-shaped sub-pixels. Multiple pixel groups 1 are arranged in rows along a first direction (e.g., the X direction) and in columns along a second direction perpendicular to the first direction (e.g., the Y direction). Pixel groups 1 located in adjacent rows are symmetrical about the row boundary line L; and any two pixel groups 1 located in the same row that are adjacent to each other are inverted and correspondingly interlocked.

[0111] Here, each pixel group 1 is composed of three U-shaped sub-pixels with different emission colors. Two of the U-shaped sub-pixels have the same opening direction and are arranged side-by-side. The third U-shaped sub-pixel has an opening direction opposite to the opening directions of the aforementioned two U-shaped sub-pixels, and its sidewalls extend into the grooves G of the corresponding U-shaped sub-pixels. For example... Figure 10As shown, the aforementioned inversion of the two pixel groups 1 means that the structure of one pixel group 1 is rotated 180° relative to the structure of the other pixel group 1 on the same plane in a direction perpendicular to the plane. For example, in one pixel group 1, two U-shaped sub-pixels arranged side by side are located at the bottom with their openings facing upwards, while in the other pixel group 1, two U-shaped sub-pixels arranged side by side are located at the top with their openings facing downwards. The aforementioned corresponding interlocking of the two pixel groups 1 means that the two U-shaped sub-pixels are respectively located at the edges of the corresponding pixel group 1 near the edge of the other pixel group 1, and the outer edges of the two U-shaped sub-pixels extend into each other's grooves G.

[0112] Optionally, any two adjacent U-shaped sub-pixels in the same row can emit different colors. For example, the U-shaped sub-pixels in any row can be arranged in an RGB color cycle. This facilitates a uniform distribution of sub-pixels with different emission colors.

[0113] For example, please refer to Figure 12 and Figure 13 To facilitate differentiation, based on the emission color of each sub-pixel, the first sub-pixel in pixel group 1 is designated as the second color sub-pixel P. G The second sub-pixel is the first color sub-pixel P. R The third sub-pixel is the third color sub-pixel P. B Explanation follows. First color subpixel P R Second color subpixel P G and the third color subpixel P B All are H-shaped sub-pixels. Multiple pixel groups 1 are arranged in rows along a first direction and in columns along a second direction perpendicular to the first direction. Pixel groups 1 located in adjacent rows are correspondingly interlocked; and any two pixel groups 1 located in the same row that are adjacent to each other are inverted and correspondingly interlocked.

[0114] Here, each pixel group 1 is composed of three H-shaped sub-pixels with different emission colors. Two H-shaped sub-pixels are arranged side-by-side and located below the third H-shaped sub-pixel. Furthermore, the adjacent sidewalls of the two H-shaped sub-pixels extend into the corresponding groove G of the third H-shaped sub-pixel at one end in the same direction. For example... Figure 12 As shown, the aforementioned inversion of the two pixel groups 1 means that the structure of one pixel group 1 is rotated 180° relative to the structure of the other pixel group 1 on the same plane in a direction perpendicular to the plane. For example, in one pixel group 1, two H-shaped sub-pixels arranged side by side are located at the bottom, while in the other pixel group 1, two H-shaped sub-pixels arranged side by side are located at the top. The aforementioned corresponding interlocking of the two pixel groups 1 means that the two H-shaped sub-pixels are respectively located near the edge of the corresponding pixel group 1 and are located on the top and bottom sides respectively, and one side wall of the two H-shaped sub-pixels extends into the groove G on the other side.

[0115] Optionally, any two adjacent H-shaped sub-pixels in the same row can emit different colors. For example, the H-shaped sub-pixels in any row can be arranged in an RGB color cycle. This facilitates a uniform distribution of sub-pixels with different emission colors.

[0116] Based on the same inventive concept, this disclosure also provides a display substrate. The display substrate includes the pixel arrangement structure described in some of the above embodiments. This display substrate also possesses all the technical advantages of the aforementioned pixel arrangement structure.

[0117] It should be noted that the display substrate provided in this embodiment can be an organic light-emitting display substrate. That is, the light-emitting device corresponding to each sub-pixel can be an OLED. An OLED includes an anode, a cathode, and a light-emitting material layer located between the anode and the cathode.

[0118] For example, the display substrate includes a pixel defining layer for defining sub-pixel regions. The pixel defining layer has multiple opening regions. The light-emitting material layers of each OLED are disposed one-to-one within the aforementioned opening regions to form sub-pixels.

[0119] Here, the area of ​​the opening region is the pixel opening area of ​​the corresponding sub-pixel. The opening region is also the light-emitting area of ​​the corresponding sub-pixel.

[0120] For example, the display substrate also includes pixel driving circuits that correspond one-to-one with the sub-pixels. The pixel driving circuits are connected to the anode of the OLED and are configured to drive the OLED to emit light. The structure of the pixel driving circuits can be selected and configured according to actual needs, and will not be described in detail in this embodiment.

[0121] Based on the same inventive concept, this disclosure also provides a mask assembly for fabricating the pixel arrangement structure described in some of the above embodiments. Please refer to... Figures 14-16 The mask assembly includes a first mask 31, a second mask 32, and a third mask 33. The first mask 31 is used to prepare first sub-pixels 11, 12, and 13, each emitting a first color and located in different pixel groups 1. The second mask 32 is used to prepare first sub-pixels 11, 12, and 13, each emitting a second color and located in different pixel groups 1. The third mask 33 is used to prepare first sub-pixels 11, 12, and 13, each emitting a third color and located in different pixel groups 1. In other words, the first mask 31 is used to prepare multiple first-color sub-pixels P. R The second mask 32 is used to prepare multiple second color sub-pixels P G The third mask 33 is used to prepare multiple third color sub-pixels P B .

[0122] The first mask 31 mentioned above is used to prepare multiple first color sub-pixels P R The first mask 31 may have a first color sub-pixel P R The first opening 311 corresponds one-to-one with the light-emitting area. That is, the number, shape, and distribution position of the first openings 311 in the first mask 31 can all match the first color sub-pixel P in the aforementioned embodiment. R The number, shape, and distribution location of the luminescent areas are set, for example... Figures 14-16 As shown in Figure (a) above. Further details will not be provided here.

[0123] The second mask 32 mentioned above is used to prepare multiple second color sub-pixels P G The second mask 32 can have the same color as the second color sub-pixel P. G The second opening 321 corresponds one-to-one with the light-emitting area. That is, the number, shape, and distribution position of the second openings 321 in the second mask 32 can all match the second color sub-pixel P in the aforementioned embodiment. G The number, shape, and distribution location of the luminescent areas are set, for example... Figures 14-16 As shown in Figure (b) above. Further details will not be provided here.

[0124] The aforementioned third mask 33 is used to prepare multiple third color sub-pixels P B The third mask 33 can have a third color sub-pixel P B The third opening 331 corresponds one-to-one with the light-emitting area. That is, the number, shape, and distribution position of the third opening 331 in the third mask 33 can all match the third color sub-pixel P in the aforementioned embodiment. B The number, shape, and distribution location of the luminescent areas are set, for example... Figures 14-16 As shown in Figure (c) above. Further details will not be provided here.

[0125] The mask assembly provided in this embodiment adopts the structure described above. It can utilize the first mask 31, the second mask 32, and the third mask 33 to sequentially prepare sub-pixels corresponding to the emitted light color, thereby completing the pixel arrangement structure described in some of the aforementioned embodiments. Furthermore, by matching the aforementioned pixel arrangement structure with the mask assembly, the processing precision of each mask can be appropriately reduced, thereby improving the mask preparation yield and saving production costs.

[0126] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0127] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0128] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A pixel arrangement structure, characterized by, The pixel group is composed of a first sub-pixel, a second sub-pixel and a third sub-pixel which are uniformly distributed and spliced with each other; the shape of the pixel group is a regular polygon; the shape of the first sub-pixel, the second sub-pixel and the third sub-pixel is a regular polygon; wherein, At least one side edge of the first sub-pixel has a groove, and at least part of the second sub-pixel and the at least part of the third sub-pixel are arranged in the groove, including: The opposite two side edges of the first sub-pixel have the groove respectively; the second sub-pixel includes a first edge and a second edge and a third edge which are respectively adjacent to the first edge; the second sub-pixel is located in the groove of the first sub-pixel, and the first edge is arranged opposite to the groove bottom, and the second edge and the third edge are arranged opposite to the two side edges of the groove respectively; the opposite two side edges of the third sub-pixel are arranged opposite to the two side edges of the groove respectively; wherein, the third sub-pixel is located on the side of the second sub-pixel away from the groove bottom, or the third sub-pixel and the second sub-pixel are respectively located in the groove on the opposite two sides of the first sub-pixel; Or, the second sub-pixel and the third sub-pixel are arranged side by side, and at least part of the second sub-pixel and at least part of the third sub-pixel are respectively embedded in the same groove; wherein, the second sub-pixel and the third sub-pixel both include a first edge and a second edge and a third edge which are respectively adjacent to the first edge; the first edge of the second sub-pixel and the first edge of the third sub-pixel are arranged opposite to the groove bottom respectively, the second edge of the second sub-pixel and the second edge of the third sub-pixel are arranged opposite to the two side edges of the groove respectively, and the third edge of the second sub-pixel and the third edge of the third sub-pixel are arranged opposite to each other. A plurality of the pixel groups are arranged in rows along a first direction and in columns along a second direction perpendicular to the first direction; wherein, The pixel groups in adjacent rows are arranged in parallel; or, 2. The pixel arrangement structure of claim 1, wherein, The pixel groups in adjacent rows are symmetric about a row boundary as the axis of symmetry; or, The pixel groups in adjacent rows are arranged in a corresponding embedded manner. A plurality of the pixel groups are spliced with each other to form a repeating unit, and the shape of the repeating unit is a regular polygon. A plurality of the repeating units are arranged in rows along a first direction and in columns along a second direction perpendicular to the first direction; wherein, the repeating units in adjacent rows are arranged in alignment; or, the repeating units in adjacent rows are arranged in misalignment.

3. The pixel arrangement structure of claim 1, wherein, The repeating units in adjacent rows are arranged in misalignment, and the distance of misalignment of the repeating units in adjacent rows along the first direction is less than or equal to the size of the first sub-pixel in the first direction.

4. The pixel arrangement structure of claim 3, wherein, ​ 5. The pixel arrangement of claim 4, wherein, ​ 6. The pixel arrangement of claim 1, wherein, The opposite two side edges of the first sub-pixel have the groove; the second sub-pixel comprises a first side and a second side and a third side which are respectively adjacent to the first side; the second sub-pixel is located in the groove of the first sub-pixel, and the first side is opposite to the groove bottom, and the second side and the third side are opposite to the two side edges of the groove respectively; the opposite two side edges of the third sub-pixel are opposite to the two side edges of the groove respectively; wherein the third sub-pixel is located on the side of the second sub-pixel away from the groove bottom, or the third sub-pixel and the second sub-pixel are located in the groove on the opposite two sides of the first sub-pixel respectively. The first sub-pixel is an H-shaped sub-pixel, and the second sub-pixel is a rectangular sub-pixel.

7. The pixel arrangement of claim 6, wherein, The third sub-pixel is a T-shaped sub-pixel, which comprises a horizontal part and a vertical part; the horizontal part is located outside the corresponding end of the H-shaped sub-pixel, and the vertical part is located in the groove.

8. The pixel arrangement structure of claim 6, wherein, In the pixel group, the number ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel is 1:2:2; or, the number ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel is 1:1:

1.

9. The pixel arrangement structure of claim 6, wherein, A plurality of the pixel groups are spliced to form a repeating unit; in the repeating unit, the light-emitting colors of the first sub-pixels of different pixel groups are different, the light-emitting colors of the second sub-pixels of different pixel groups are different, and the light-emitting colors of the third sub-pixels of different pixel groups are different.

10. The pixel arrangement structure of claim 9, wherein, A plurality of the repeating units are arranged in an array, and a plurality of the first sub-pixels are arranged in a row along a first direction and in a column along a second direction perpendicular to the first direction; wherein the light-emitting colors of the third sub-pixels corresponding to the first sub-pixels in the pixel groups located in the same column and adjacent rows are the same; or, the light-emitting colors of the third sub-pixels corresponding to the first sub-pixels in the pixel groups located in the same column and adjacent rows are different.

11. The pixel arrangement of claim 1, wherein, The second sub-pixel and the third sub-pixel are arranged side by side, and at least part of the second sub-pixel and at least part of the third sub-pixel are embedded in the same groove respectively; wherein the second sub-pixel and the third sub-pixel each comprise a first side and a second side and a third side which are respectively adjacent to the first side; the first side of the second sub-pixel and the first side of the third sub-pixel are opposite to the groove bottom respectively, the second side of the second sub-pixel and the second side of the third sub-pixel are opposite to the two side edges of the groove respectively, and the third side of the second sub-pixel and the third side of the third sub-pixel are opposite to each other; The first sub-pixel, the second sub-pixel and the third sub-pixel are all H-shaped sub-pixels; or, the first sub-pixel, the second sub-pixel and the third sub-pixel are all U-shaped sub-pixels.

12. The pixel arrangement structure of claim 11, wherein, In the pixel group, the number ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel is 1:1:

1.

13. The pixel arrangement structure of claim 11, wherein, A plurality of pixel groups are arranged in rows along a first direction and in columns along a second direction perpendicular to the first direction; wherein any two pixel groups located in the same row and adjacent to each other are inverted and correspondingly embedded.

14. The pixel arrangement of any of claims 11-13, wherein, The first sub-pixel, the second sub-pixel and the third sub-pixel have the same shape. The light-emitting colors of any two sub-pixels located in the same row and adjacent to each other are different.

15. A display substrate, comprising: The pixel arrangement structure comprises: The pixel arrangement structure according to any one of claims 1-14.

16. A mask assembly, characterized by A mask assembly for preparing the pixel arrangement structure according to any one of claims 1-14; the mask assembly comprises: A first mask for preparing first sub-pixels, second sub-pixels and third sub-pixels located in different pixel groups respectively and having a first color of light-emitting color; A second mask for preparing first sub-pixels, second sub-pixels and third sub-pixels located in different pixel groups respectively and having a second color of light-emitting color; A third mask for preparing first sub-pixels, second sub-pixels and third sub-pixels located in different pixel groups respectively and having a third color of light-emitting color.

Images