Patent Publication Number: US-2023165099-A1

Title: Pixel arrangement structure, display panel, and mask assembly

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority to Chinese Patent Application No. 202111391636.X, filed on Nov. 23, 2021, the entire content of which is incorporated herein by reference. 
     TECHNICAL FIELD 
     The present disclosure relates to the technical field of display technology and, more particularly, to a pixel arrangement structure, a display panel, and a mask assembly. 
     BACKGROUND 
     Organic light-emitting diode (OLED) is an active light-emitting device. Compared with the display mode of the traditional liquid crystal display (LCD), the OLED display technology does not need a backlight and has self-luminous characteristics. The OLED uses a thinner organic material film layer and a glass substrate. When a current passes through the OLED, the organic material emits light. Therefore, the OLED display panel can significantly save power, can be made lighter and thinner, can withstand a wider range of temperature changes than the LCD display panel, and has a larger viewing angle. The OLED display panel is expected to become the next-generation flat panel display technology since the LCD display panel, and it is one of the most popular flat panel display technologies. 
     A pixel arrangement structure in the OLED display panel plays an important role in display effect of the OLED display panel. Therefore, how to design a desired pixel arrangement structure has become an urgent technical problem to be solved. 
     SUMMARY 
     One aspect of the present disclosure provides a pixel arrangement structure for a display panel. The pixel arrangement structure includes a plurality of repetition components arranged in rows and columns. Each repetition component includes: a first pixel group including two or more first sub-pixels arranged in a column direction, two adjacent first sub-pixels at least partially overlapping with each other in the column direction; a second pixel group disposed on a side of the first pixel group in a row direction and including two or more second sub-pixels arranged in the column direction, two adjacent second sub-pixels at least partially overlapping with each other in the column direction; and a third pixel group including two or more third sub-pixels, the two or more third sub-pixels including at least one first-type third sub-pixel disposed between the first pixel group and the second pixel group and at least one second-type third sub-pixel disposed on a side of the second pixel group facing away from the first pixel group. A number ratio of first sub-pixels, second sub-pixels, and third sub-pixels is 1:1:1, and along the column direction, at least one first sub-pixel partially overlaps with the third sub-pixels, and at least one second sub-pixel partially overlaps with the third sub-pixels. 
     Another aspect of the present disclosure provides a display panel. The display panel includes a pixel arrangement structure. The pixel arrangement structure comprises a plurality of repetition components arranged in rows and columns. Each repetition component includes: a first pixel group including two or more first sub-pixels arranged in a column direction, two adjacent first sub-pixels at least partially overlapping with each other in the column direction; a second pixel group disposed on a side of the first pixel group in a row direction and including two or more second sub-pixels arranged in the column direction, two adjacent second sub-pixels at least partially overlapping with each other in the column direction; and a third pixel group including two or more third sub-pixels, the two or more third sub-pixels including at least one first-type third sub-pixel disposed between the first pixel group and the second pixel group and at least one second-type third sub-pixel disposed on a side of the second pixel group facing away from the first pixel group. A number ratio of first sub-pixels, second sub-pixels, and third sub-pixels is 1:1:1, and along the column direction, at least one first sub-pixel partially overlaps with the third sub-pixels, and at least one second sub-pixel partially overlaps with the third sub-pixels. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       To more clearly illustrate the technical solution of the present disclosure, the accompanying drawings used in the description of the disclosed embodiments are briefly described below. The drawings described below are merely some embodiments of the present disclosure. Other drawings may be derived from such drawings by a person with ordinary skill in the art without creative efforts and may be encompassed in the present disclosure. 
         FIG.  1    illustrates a schematic structural diagram of a repetition component of an exemplary pixel arrangement structure according to some embodiments of the present disclosure; 
         FIG.  2    illustrates a schematic structural diagram of an exemplary pixel arrangement structure according to some embodiments of the present disclosure; 
         FIG.  3    illustrates a schematic structural diagram of another repetition component of an exemplary pixel arrangement structure according to some embodiments of the present disclosure; 
         FIG.  4    illustrates a schematic structural diagram of another exemplary pixel arrangement structure according to some embodiments of the present disclosure; 
         FIG.  5    illustrates a schematic structural diagram of an exemplary display panel according to some embodiments of the present disclosure; 
         FIG.  6    illustrates a schematic structural diagram of a mask of an exemplary mask assembly according to some embodiments of the present disclosure; 
         FIG.  7    illustrates a schematic structural diagram of another mask of an exemplary mask assembly according to some embodiments of the present disclosure; 
         FIG.  8    illustrates a schematic structural diagram of another mask of an exemplary mask assembly according to some embodiments of the present disclosure; 
         FIG.  9    illustrates a schematic structural diagram of a mask of another exemplary mask assembly according to some embodiments of the present disclosure; 
         FIG.  10    illustrates a schematic structural diagram of another mask of another exemplary mask assembly according to some embodiments of the present disclosure; and 
         FIG.  11    illustrates a schematic structural diagram of another mask of another exemplary mask assembly according to some embodiments of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Various features and embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. In the description below, numerous specific details are proposed to provide a comprehensive understanding of the present disclosure. However, for those skilled in the art, the present disclosure may be implemented without some of the specific details. The description of the embodiments below is intended to provide a better understanding of the present disclosure through examples. In the drawings and the specification below, certain well-known structures and technical details are not shown to avoid unnecessary ambiguity. For clarity, dimensions of certain structures may be expanded to show structural details. In addition, the features, structures, or characteristics described below may be combined in one or more embodiments in any suitable manner. 
     In the description of the present disclosure, it should be noted that, unless otherwise specified, “plurality” means two or more. The orientation or position relationship indicated by terms “upper,” “lower,” “left,” right,” inner,” and “outer” are only for the convenience and simplification of describing the present disclosure, do not indicate or imply that a device or an element referred herein must have a specific orientation or must be constructed and operated in a specific orientation, and hence cannot be construed as limiting the present disclosure. In addition, terms “first” and “second” are only used for illustration purpose, and cannot be construed as indicating or implying relative importance. 
     Words appeared in the description below for describing directions refer to directions in the drawings, and do not limit a specific structure of the embodiments of the present disclosure. In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, terms “installation” and “connection” should be interpreted in a broad sense. For example, the terms may refer to a fixed connection, a detachable connection, or an integral connection. The connection may be direct or indirect. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the specification can be interpreted according to specific circumstances. 
     For better illustration of the embodiments of the present disclosure, pixel arrangement structures, display panels, and mask assemblies will be described in detail below with reference to  FIGS.  1 - 11   . 
       FIG.  1    illustrates a schematic structural diagram of a repetition component of an exemplary pixel arrangement structure according to some embodiments of the present disclosure.  FIG.  2    illustrates a schematic structural diagram of an exemplary pixel arrangement structure according to some embodiments of the present disclosure. 
     As shown in  FIG.  1    and  FIG.  2   , the present disclosure provides a pixel arrangement structure for a display panel. The pixel arrangement structure includes a plurality of repetition components  100  arranged in rows and columns. The repetition component  100  includes a first pixel group  101 , a second pixel group  102 , and a third pixel group  103 . The first pixel group  101  includes two or more first sub-pixels  110  arranged along a column direction Y, and adjacent two first sub-pixels  110  in the column direction Y are at least partially overlapped. Disposed on a side of the first pixel group  101  along a row direction X, the second pixel group  102  includes two or more second sub-pixels  120  arranged along the column direction Y, and adjacent two second sub-pixels  120  in the column direction Y are at least partially overlapped. The third pixel group  103  includes two or more third sub-pixels  130 . The two or more third sub-pixels  130  includes at least one first-type third sub-pixel  131  and at least one second-type third sub-pixel  132 . The at least first-type third sub-pixel  131  is disposed between the first pixel group  101  and the second pixel group  102 . The at least one second-type third sub-pixel  132  is disposed on a side of the second pixel group  102  facing away from the first pixel group  101 . A number ratio of first sub-pixels  110 , second sub-pixels  120 , and third sub-pixels  130  is 1:1:1. Along the column direction Y, at least one first sub-pixel  110  partially overlaps with the third sub-pixels  130 , and at least one second sub-pixel  120  partially overlaps with the third sub-pixels  130 . 
     As shown in  FIG.  1    and  FIG.  2   , structures of the first pixel group  101  and the second pixel group  102  are defined by solid lines, which do not constitute a structural limitation on the pixel arrangement structure of the embodiments of the present disclosure. In some embodiments, the row direction is the X direction in  FIG.  1   , and the column direction is the Y direction in  FIG.  1   . In some other embodiments, the row direction may be the Y direction in  FIG.  1   , and the column direction may be the X direction in  FIG.  1   . 
     In the pixel arrangement structure provided by the embodiments of the present disclosure, the pixel arrangement structure includes the first pixel group  101 , the second pixel group  102 , and the third sub-pixels  130  arranged in the row direction X. The first pixel group  101  includes two or more first sub-pixels, and the adjacent two or more first sub-pixels  110  at least partially overlap in the column direction Y, such that the two or more first sub-pixels  110  can be vapor-deposited by a same mask opening of a mask. Similarly, the two or more second sub-pixels  120  at least partially overlap in the column direction Y, such that the two or more second sub-pixels  120  can be vapor-formed by the same mask opening of the mask. When the two or more sub-pixels in the pixel arrangement structure are vapor-deposited by the same mask opening, on one hand, the number of mask openings of the mask can be reduced to facilitate the preparation and molding of the mask, on the other hand, complexity of vapor-depositing the pixel arrangement structure can be reduced. Thus, the embodiments of the present disclosure can reduce not only the complexity of fabricating the pixel arrangement structure but also the complexity of making the mask for vapor-depositing the pixel arrangement structure. 
     In addition, the number ratio of the first sub-pixels  110 , the second sub-pixels  120 , and the third sub-pixels  130  is 1:1:1. That is, three sub-pixels that form a white light-emitting display component  200 , enclosed by dashed lines as shown in  FIG.  2   , are physical sub-pixels. There is no need to share sub-pixels. As such, display effect of the pixel arrangement structure is improved. When the repetition component  100  is repeatedly arranged in sequence to form the pixel arrangement structure, the at least one first-type third sub-pixel  131  is disposed between the first pixel group  101  and the second pixel group  102 , and the at least one second-type third sub-pixel  132  is disposed between the second pixel group  102  and the first pixel group  101  of another repetition component  100 . At least one first sub-pixel  110  partially overlaps with the third sub-pixels  130 . At least one second sub-pixel  120  partially overlaps with the third sub-pixels  130 . As such, distances between the three sub-pixels that form the display unit  200  can be reduced, and the display effect of the pixel arrangement structure is further improved. As shown in  FIG.  2   , the dashed lines define a structure of the display component  200 . The dashed lines do not constitute a structural limitation on the pixel arrangement structure provided by the embodiments of the present disclosure. 
     In some embodiments, a shape of the first type-third sub-pixel  131  is the same as a shape of the second-type third sub-pixel  132 . However, the first type-third sub-pixel  131  and the second-type third sub-pixel  132  are deposed at different positions. In the repetition component  100 , the first-type third sub-pixel  131  is disposed between the first pixel group  101  and the second pixel group  102 , and the second-type third sub-pixel  132  is disposed outside the first pixel group  101  and the second pixel group  102 . That is, in the entire pixel arrangement structure, the first sub-pixels  130  are disposed between any adjacent first pixel group  101  and the second pixel group  102  in the row direction X. 
     In some embodiments, the first pixel group  101  and the second pixel group  102  in the repetition component  100  are symmetrically arranged with respect to the first-type third sub-pixel  131 . The first-type third sub-pixel  131  joins with the first sub-pixel  110  and the second sub-pixel  120  disposed on both sides of the first-type third sub-pixel  131  to form the display component  200 . In some embodiments, the first pixel group  101  and the second pixel group  102  are symmetrically arranged with respect to the first-type third sub-pixel  131 , such that in the formed display component  200 , distances between the first-type third sub-pixel  131  and both of the first sub-pixel  120  and the second sub-pixel  120  are closer, thereby achieving a more uniform display effect. 
     In some embodiments, when the repetition components  100  are arranged in sequence along the row direction X, the second pixel group  102  of a preceding repetition component  100  and the first pixel group  101  of an adjacent repetition component  100  in the row direction X are symmetrically arranged with respect to the second-type third sub-pixel  132 , thereby further improving the display effect. 
     In some embodiments, in the repetition component  100 , at least a portion of the first pixel group  101  has an edge arranged in parallel with an edge of at least a portion of the first-type third sub-pixel  131  to reduce a distance between the first sub-pixel  110  and the third sub-pixel  130 , thereby improving the display effect. 
     In some embodiments, in the repetition component  100 , at least a portion of the second pixel group  102  has an edge arranged in parallel with the edge of the at least a portion of the first-type third sub-pixel  131  to reduce a distance between the third sub-pixel  130  and the second sub-pixel  120 , thereby improving the display effect. 
     In some embodiments, in the same repetition component  100 , at least a portion of the second pixel group  102  has the edge arranged in parallel with an edge of at least a portion of the second-type third sub-pixel  132  to reduce a distance between the second sub-pixel  120  and the third sub-pixel  130 , thereby improving the display effect. 
     In some embodiments, in the same repetition component  100 , at least a portion of the first pixel group  101  has the edge arranged in parallel with the edge of the at least a portion of the second-type third sub-pixel  132  to reduce a distance between the first sub-pixel  110  and the third sub-pixel  130 , thereby improving the display effect. 
     Returning to  FIG.  1    and  FIG.  2   , in some embodiments, the numbers of the first sub-pixels  110 , the second sub-pixels  120 , and the third sub-pixels  130  are all three. The number of the first-type third sub-pixel  131  is one. The number of the second-type third sub-pixels  132  is two. The two second-type third sub-pixels  132  are separately arranged in the column direction Y. The two second-type third sub-pixels  132  are disposed between the first sub-pixel  110  and the second sub-pixel  120  that are adjacent in the row direction X. 
     In some embodiments, the arrangement of the first sub-pixel  110 , the second sub-pixel  120 , and the third sub-pixel  130  is more uniform, and the distances between the three sub-pixels used to form the same display component can be reduced. Thus, the display effect of the pixel arrangement structure can be improved. 
     In some embodiments, multiple repetition components  100  are arranged in multiple rows and multiple columns. The repetition components  100  in two adjacent rows are arranged in a staggered manner. The first-type third sub-pixels  131  in the (i)th row of the repetition components  100  are aligned in the column direction Y with the corresponding second-type third sub-pixels  132  in the (i−1)th row of the repetition components  100 . i is a positive integer greater than 1. 
     In some embodiments, when the first-type third sub-pixels  131  in the (i)th row of the repetition components  100  are aligned in the column direction Y with the second-type third sub-pixels  132  in the (i−1)th row of the repetition components  100 , the first pixel group  101  disposed on a side of the first-type third sub-pixel in the (i)th row of the repetition components  100  at least partially overlaps in the column direction Y with the second pixel group  102  disposed on the same side of the second-type third sub-pixel  132  in the (i−1)th row of the repetition components  100 . That is, the first pixel groups  101  and the second pixel groups  102  are alternately arranged along the column direction Y, thereby avoiding obvious monochromatic display stripes in the pixel arrangement structure. Further, aligning the first-type third sub-pixels  131  in the (i)th row of the repetition components  100  in the column direction Y with the second-type third sub-pixels  132  in the (i−1)th row of the repetition components  100  makes the arrangement of the third sub-pixels in the pixel arrangement structure more uniform. 
     In some embodiments, at least one first sub-pixel  110  in the (i)th row of the repetition components  100  aligns in the column direction Y with at least one second sub-pixel  120  in the (i−1)th row of the repetition components  100 . Thus, the monochromatic display stripes may be suppressed and the display effect may be improved. 
     In some embodiments, the first-type third sub-pixel  131  aligns in the row direction X with the first sub-pixel  110  disposed in a middle part of the first pixel group  101  in the column direction Y and with the second sub-pixel  120  in a middle part of the second pixel group  102  in the column direction Y. 
     In some embodiments, the first-type third sub-pixel  131  is disposed close to the middle part of the first pixel group  101  and the second pixel group  102  in the column direction Y. When the other two second-type third sub-pixels  132  are disposed respectively in the row direction X between the first sub-pixels  110  in the preceding repetition component  100  and the second sub-pixels  120  in the adjacent repetition component  100 , all the third sub-pixels  130  can be disposed in the row direction X between the first sub-pixels  110  and the second sub-pixels  120 . Thus, the obvious monochromatic display stripes can be avoided in the row direction X, and the arrangement of various sub-pixels is more uniform in the row direction X. 
     In addition, in some embodiments, one of the two adjacent rows of the sub-pixels in the entire pixel arrangement structure is repetitively arranged according to an order of the first sub-pixel  110 , the second sub-pixel  120 , and the third sub-pixel  130 , and another of the two adjacent rows of the sub-pixels in the entire pixel arrangement structure is repetitively arranged according to an order of the first sub-pixel  110 , the third sub-pixel  130 , and the second sub-pixel  120 . In the two adjacent rows of the sub-pixels, the third sub-pixels  130  in one row are disposed between the first sub-pixels  110  and the second sub-pixels  120  in another row. Thus, the obvious monochromatic display stripes in the pixel arrangement structure can be avoided, the distances among the three sub-pixels that form a same display component  200  can be reduced, and the display effect of the pixel arrangement structure can be improved. 
     There are many ways to configure a shape of the third sub-pixels  130 . The third sub-pixel  130  may have a circle shape, a polygon shape, or the like. 
     In some embodiments, the third sub-pixel  130  has a hexagon shape. Each third sub-pixel  130  is surrounded by three first sub-pixels  110  and three second sub-pixels  120 . 
     In some embodiments, the third sub-pixel  130  has the hexagon shape. Each third sub-pixel  130  is surrounded by six sub-pixels, such that each of the first sub-pixels  110  and the second sub-pixels  120  disposed around the third sub-pixel  130  is arranged to share with one of the sides of the third sub-pixel  130 . Thus, the distances from the third sub-pixel  130  to the surrounding sub-pixels can be reduced, and the pixels in the pixel arrangement structure can be tightly arranged. 
     In some embodiments, the third sub-pixel  103  has the hexagon shape. The first pixel group  101  and the second pixel group  102  are symmetrically arranged with respect to a first symmetry axis P of the first-type third sub-pixel  131  extending along the column direction Y. The first symmetry axis P is a diagonal line of the first-type third sub-pixel  131 . Thus, a difference between the distance from the first sub-pixel  110  to the first-type third sub-pixel  131  and the distance from the second sub-pixel  120  to the first-type third sub-pixel  131  can be reduced, and the display effect is more uniform. 
     In some embodiments, the first pixel group  101  and the second pixel group  102  in one repetition component  100  are symmetrically arranged with respect to a second symmetry axis Q extending along the row direction X. The second symmetry axis Q passes through the first-type third sub-pixel  131 . In some embodiments, the second symmetry axis Q passes through a center of the first-type third sub-pixel  131  in the column direction Y. In some embodiments, the first sub-pixels  110 , the second sub-pixels  120 , and the third sub-pixels  130  are arranged more uniformly, thereby further improving the uniformity of the pixel arrangement structure. 
     In some embodiments, returning to  FIG.  1    and  FIG.  2   , the first sub-pixel  110  has the hexagon shape, and any two adjacent first sub-pixels  110  in the first pixel group  101  share a common side. When the first sub-pixels  110  have the hexagon shape and are arranged around the hexagon-shaped third sub-pixel  130 , the sides of the first sub-pixels  110  are arranged in parallel with the corresponding sides of the third sub-pixels  130  to reduce the distance between each first sub-pixel  110  and corresponding third sub-pixel  130 . Thus, the pixels in the pixel arrangement structure are tightly arranged, and the display effect of the pixel arrangement structure is further improved. 
     In some embodiments, returning to  FIG.  1    and  FIG.  2   , the second sub-pixel  120  has the hexagon shape, and any two adjacent second sub-pixels  120  in the first pixel group  101  share a common side. When the second sub-pixels  120  have the hexagon shape and are arranged around the hexagon-shaped third sub-pixel  130 , the sides of the second sub-pixels  120  are arranged in parallel with the corresponding sides of the third sub-pixels  130  to reduce the distance between each second sub-pixel  120  and corresponding third sub-pixel  130 . Thus, the pixels in the pixel arrangement structure are tightly arranged, and the display effect of the pixel arrangement structure is further improved. 
       FIG.  3    illustrates a schematic structural diagram of another repetition component  100  of an exemplary pixel arrangement structure according to some embodiments of the present disclosure.  FIG.  4    illustrates a schematic structural diagram of another exemplary pixel arrangement structure according to some embodiments of the present disclosure. 
     As shown in  FIG.  3    and  FIG.  4   , in some embodiments, the repetition component  100  includes two first sub-pixels  110 , two second sub-pixels  120 , and two third sub-pixels  130 . The first-type third sub-pixel  131  and the second-type third sub-pixel  132  are arranged to align along the row direction X. 
     In some embodiments, the first pixel group  101  includes two first sub-pixels  110 . The two first sub-pixels  110  can be formed by vapor deposition through a same mask opening. Similarly, the second pixel group  102  includes two second sub-pixels  120 . The two second sub-pixels  120  can be formed by vapor deposition through a same mask opening. The third sub-pixels  130  are arranged to align along the row direction X, thereby simplifying arrangement structure of the third sub-pixels  130 . 
     In some embodiments, returning to  FIG.  4   , multiple repetition components  100  are arranged in multiple rows and multiple columns. The repetition components  100  in any two adjacent rows are arranged in a staggered manner. The first pixel group  101  and/or the second pixel group  102  in the (i+1)th row of the repetition components  100  are disposed between the first pixel group  101  and the second pixel group  102  in the (i)th row of the repetition components  100 . 
     In some embodiments, two adjacent rows of the repetition components  100  are arranged in a staggered manner. Thus, a distance between the two adjacent rows of the sub-pixels can be reduced, and the pixels in the pixel arrangement structure can be tightly arranged. 
     In some embodiments, the first pixel group  101  and the second pixel group  102  in the (i)th row at least partially overlap in the row direction X with the first pixel group  101  and the second pixel group  102  in the (i+1)th row. Thus, a distance between the first pixel group  101  and/or the second pixel group  102  in the (i)th row and the first pixel group  101  and/or the second pixel group  102  in the (i+1)th row can be reduced. 
     In some embodiments, returning to  FIG.  4   , the first-type third sub-pixel  131  in the (i+1)th row and the second pixel group  102  in the (i)th row are arranged to align along the column direction Y, the second-type third sub-pixel  132  in the (i+1)th row and the first pixel group  101  in the (i)th row are arranged to align along the column direction Y, or the first-type third sub-pixel  131  in the (i+1)th row and the second pixel group  102  in the (i)th row are arranged to align along the column direction Y, and the second-type third sub-pixel  132  in the (i+1)th row and the first pixel group  101  in the (i)th row are arranged to align along the column direction Y. Thus, the obvious monochromatic display stripes can be avoided in the column direction Y, and the display effect of the pixel arrangement structure can be improved. 
     In some embodiments, the third sub-pixel  130  has a rhombus shape. The first pixel group  101  and the second pixel group  102  are symmetrically arranged with respect to a third symmetry axis M of the third sub-pixel  130  extending in the column direction Y. The third symmetry axis M is a diagonal line of the third sub-pixel  130 . Thus, a difference between a distance from the first sub-pixel  110  to the third sub-pixel  130  and a distance from the second sub-pixel  120  to the third sub-pixel  130  can be reduced, and the display effect is more uniform. 
     In some embodiments, returning to  FIG.  4   , the first pixel group  101  and the second pixel group  102  in the repetition component  100  are symmetrically arrange with respect to a fourth symmetry axis N extending in the row direction X. The fourth symmetry axis N passes through the third sub-pixel  130 . In some embodiments, the fourth symmetry axis N passes through a center of the third sub-pixel  130  in the column direction Y. In some embodiments, the first sub-pixel  110 , the second sub-pixel  120 , and the third sub-pixel  130  are arranged more uniformly, thereby further improving display uniformity of the pixel arrangement structure. 
     In some embodiments, returning to  FIG.  4   , in two adjacent rows of the sub-pixels in the pixel arrangement structure, one of the two adjacent rows of the sub-pixels is repetitively arranged according to an order of the first sub-pixel  110 , the first sub-pixel  110 , and the third sub-pixel  130 , and another of the two adjacent rows of the sub-pixels is repetitively arranged according to an order of the second sub-pixel  120 , the second sub-pixel  120 , and the third sub-pixel  130 . In the two adjacent columns of the sub-pixels, the first sub-pixels  110  in one column are arranged to align in the row direction X with the second sub-pixel  120  in another column. The third sub-pixels  130  in one column and the third sub-pixels  130  in another column are arranged in a staggered manner. The third sub-pixels  130  corresponds to between two second sub-pixels  120  or two first sub-pixels  110  in a preceding column. 
     In some embodiments, returning to  FIG.  3    and  FIG.  4   , the first sub-pixel  110  has a rhombus shape, and two adjacent first sub-pixels  110  in the first pixel group  101  share a common side. When the first sub-pixel  110  has the rhombus shape and the first sub-pixels  110  are arranged around the rhombus-shaped third sub-pixel  130 , the sides of the first sub-pixels  110  are arranged in parallel with the corresponding sides of the third sub-pixel  130 . Thus, the distance between each of the first sub-pixels  110  and the third sub-pixel  130  can be reduced, the pixels in the pixel arrangement structure can be tightly arranged, and the display effect of the pixel arrangement structure can be improved. 
     In some embodiments, returning to  FIG.  3    and  FIG.  4   , the second sub-pixel  120  has a rhombus shape, and two adjacent second sub-pixels  120  in the second pixel group  102  share a common side. When the second sub-pixel  120  has the rhombus shape and the second sub-pixels  120  are arranged around the rhombus-shaped third sub-pixel  130 , the sides of the second sub-pixels  120  are arranged in parallel with the corresponding sides of the third sub-pixel  130 . Thus, the distance between each of the second sub-pixels  120  and the third sub-pixel  130  can be reduced, the pixels in the pixel arrangement structure can be tightly arranged, and the display effect of the pixel arrangement structure can be improved. 
     In some embodiments, referring to  FIGS.  1 - 4   , the first sub-pixel  110  is a red sub-pixel, the second sub-pixel  120  is a blue sub-pixel, and the third sub-pixel  130  is a green sub-pixel. In some embodiments, the third sub-pixel  130  is the green sub-pixel. Human eyes are sensitive to green color. When the third sub-pixel  130  is the green sub-pixel, the green sub-pixels are arranged more uniformly in the pixel arrangement structure, and no adjacent green sub-pixels exists. Thus, comfort of the human eyes can be improved, and the display effect can be improved. 
       FIG.  5    illustrates a schematic structural diagram of an exemplary display panel according to some embodiments of the present disclosure. 
     As shown in  FIG.  5   , the present disclosure also provides a display panel  1 . The display panel  1  includes a display area AA. In some embodiments, the display panel  1  also includes a non-display area NA. The non-display area NA is arranged around the display area AA. In some embodiments, the display area AA further includes a first display area AA 1  and a second display area AA 2  surrounding at least a portion of the first display area AA 1 . The first display area AA 1  may be used to configure a photosensitive component such as a camera or a sensor. 
     In some embodiments, the display panel  1  includes any of the pixel arrangement structures provided by the embodiments of the present disclosure. Because the display panel includes the pixel arrangement structure consistent with the embodiments of the present disclosure, the display panel has the beneficial effects of the pixel arrangement structure consistent with the embodiments of the present disclosure. The detailed description is omitted. In some embodiments, the pixel arrangement structure consistent with the embodiments of the present disclosure can be disposed in the first display area AA 1  and/or the second display area AA 2 . 
     The present disclosure also provides a mask assembly for forming the pixel arrangement structure consistent with the embodiments of the present disclosure. The mask assembly includes a first mask  10 , a second mask  20 , and a third mask  30 . The first mask  10  includes first mask openings  11  corresponding to the two or more first sub-pixels  110  in each repetition component  100  of the pixel arrangement structure. The second mask  20  includes second mask openings  21  corresponding to the two or more second sub-pixels  120  in each repetition component  100  of the pixel arrangement structure. The third mask  30  includes a first-type third mask and a second-type third mask. The first-type third mask includes first-type third mask openings  31  corresponding to the at least one first-type third sub-pixel  131  in each repetition component  100  of the pixel arrangement structure. The second-type third mask includes second-type third mask openings  32  corresponding to the at least one second-type third sub-pixel  132  in each repetition component  100  of the pixel arrangement structure. The mask assembly may be used to form any of the disclosed pixel arrangement structures. 
     In some embodiments, the first sub-pixel  110  and the second sub-pixel  120  are arranged in a same manner. The first pixel group  101  and the second pixel group  102  are bent in different directions. The first mask  10  and the second mask  20  may be multiplexed. The first mask  10  may be turned over to become the second mask  20 . Or the second mask  20  may be turned over to become the first mask  10 . Thus, quantity of masks can be reduced, and fabrication cost can be reduced. 
       FIG.  6    illustrates a schematic structural diagram of a mask  10  of an exemplary mask assembly according to some embodiments of the present disclosure. In some embodiments, when the first sub-pixels are arranged in the arrangement as shown in  FIG.  1    and  FIG.  2   , the first mask  10  shown in  FIG.  6    may be used to form the first sub-pixels  110  by vapor deposition. 
       FIG.  9    illustrates a schematic structural diagram of another mask  10  of an exemplary mask assembly according to some embodiments of the present disclosure. In some embodiments, when the first sub-pixels  110  are arranged in the arrangement as shown in  FIG.  3    and  FIG.  4   , the first mask  10  shown in  FIG.  9    may be used to form the first sub-pixels  110  by vapor deposition. 
       FIG.  7    illustrates a schematic structural diagram of another mask  20  of an exemplary mask assembly according to some embodiments of the present disclosure. In some embodiments, when the second sub-pixels  120  are arranged in the arrangement as shown in  FIG.  1    and  FIG.  2   , the second mask  20  shown in  FIG.  7    may be used to form the second sub-pixels  120  by vapor deposition. 
       FIG.  10    illustrates a schematic structural diagram of a mask  20  of another exemplary mask assembly according to some embodiments of the present disclosure. In some embodiments, when the second sub-pixels  120  are arranged in the arrangement as shown in  FIG.  3    and  FIG.  4   , the second mask  20  shown in  FIG.  10    may be used to form the second sub-pixels  120  by vapor deposition. 
     In some embodiments, in the pixel arrangement structures shown in  FIG.  3    and  FIG.  4   , the first sub-pixels  110  and the second sub-pixels  120  are arranged in a same manner. Thus, the first mask  10  shown in  FIG.  9    may be multiplexed to become the second mask  20  shown in  FIG.  10   , or the second mask  20  shown in  FIG.  10    may be multiplexed to become the first mask  10  shown in  FIG.  9   . 
       FIG.  8    illustrates a schematic structural diagram of another mask  30  of an exemplary mask assembly according to some embodiments of the present disclosure. In some embodiments, when the third sub-pixels are arranged in the arrangement as shown in  FIG.  1    and  FIG.  2   , the third mask  30  shown in  FIG.  8    may be used to form the third sub-pixels  130  by vapor deposition. 
       FIG.  11    illustrates a schematic structural diagram of another mask  30  of another exemplary mask assembly according to some embodiments of the present disclosure. In some embodiments, when the third sub-pixels  130  are arranged in the arrangement as shown in  FIG.  3    and  FIG.  4   , the third mask  30  shown in  FIG.  11    may be used to form the third sub-pixels  130  by vapor deposition. 
     In the embodiments of the present disclosure, the pixel arrangement structure includes the plurality of repetition components arranged in rows and columns. Each repetition component includes the first pixel group, the second pixel group, and the third pixel group arranged in the row direction. The first pixel group includes the two or more first sub-pixels arranged in the column direction, and two adjacent first sub-pixels at least partially overlap with each other in the column direction, such that the two or more first sub-pixels can be formed by evaporation from openings on a same mask. Similarly, the second pixel group includes the two or more second sub-pixels arranged in the column direction, and two adjacent second sub-pixels at least partially overlap with each other in the column direction, such that the two or more second sub-pixels can be formed by evaporation from openings on another same mask. Thus, the embodiments of the present disclosure can reduce the difficulty of forming the pixel arrangement structure and the difficulty of making masks used for forming the pixel arrangement structure by evaporation. 
     In addition, the number ratio of first sub-pixels, second sub-pixels, and third sub-pixels is 1:1:1, that is, the three sub-pixels used to form a display unit that emits white light are all true sub-pixels, and no sub-pixel sharing occurs, thereby improving display effect of the pixel arrangement structure. When the plurality of repetition components is sequentially and repeatedly arranged to form the pixel arrangement structure, the at least one first-type third sub-pixel in the third pixel group is disposed between the first pixel group and the second pixel group, and the at least one second-type third sub-pixel in the third pixel group is disposed between the second pixel group and the first pixel group in an adjacent repetition component. facing away from the first pixel group. Along the column direction, at least one first sub-pixel partially overlaps with the third sub-pixels, and at least one second sub-pixel partially overlaps with the third sub-pixels, thereby reducing distances between three sub-pixels that form a display unit, and further improving the display effect of the pixel arrangement structure. 
     In the specification, specific examples are used to explain the principles and implementations of the present disclosure. The description of the embodiments is intended to assist comprehension of the methods and core inventive ideas of the present disclosure. At the same time, those of ordinary skill in the art may change or modify the specific implementation and the scope of the application according to the embodiments of the present disclosure. Thus, the content of the specification should not be construed as limiting the present disclosure.