阅读说明：本技术 像素排列结构、掩膜板及显示面板 (Pixel arrangement structure, mask plate and display panel ) 是由 魏雄伟 于 2020-07-28 设计创作，主要内容包括：本发明涉及像素排列结构、掩膜板及显示面板,其中,像素排列结构包括重复单元,重复单元由三个发光颜色不同、形状相同的三个发光单元以边对边的方式嵌合而成,发光单元呈N边形；各发光单元由发光颜色相同且形状相同的M个子像素组成,且在同一重复单元中,每一个发光单元中的一个子像素与相邻的两个发光单元中的各一个子像素相邻,以构成一个像素单元；其中,N为大于或等于12的整数,M为大于或等于3的整数。该像素排列结构能够在提高分辨率的基础上,降低制备难度,为高分辨OLED器件的制作奠定了基础。(The invention relates to a pixel arrangement structure, a mask plate and a display panel, wherein the pixel arrangement structure comprises a repeating unit, the repeating unit is formed by embedding three light-emitting units which have different light-emitting colors and the same shape in an edge-to-edge mode, and the light-emitting units are in an N-edge shape; each light-emitting unit consists of M sub-pixels with the same light-emitting color and the same shape, and in the same repeating unit, one sub-pixel in each light-emitting unit is adjacent to each sub-pixel in two adjacent light-emitting units to form a pixel unit; wherein N is an integer greater than or equal to 12, and M is an integer greater than or equal to 3. The pixel arrangement structure can reduce the preparation difficulty on the basis of improving the resolution ratio, and lays a foundation for the manufacture of a high-resolution OLED device.)

1. A pixel arrangement structure is characterized by comprising a repeating unit, wherein the repeating unit is formed by embedding three light-emitting units which have different light-emitting colors and the same shape in a side-to-side mode, and the light-emitting units are in an N-edge shape;

each light-emitting unit consists of M sub-pixels with the same light-emitting color and the same shape, and in the same repeating unit, one sub-pixel in each light-emitting unit is adjacent to each sub-pixel in the other two adjacent light-emitting units;

wherein N is an integer greater than or equal to 12, and M is an integer greater than or equal to 3.

2. The pixel arrangement structure according to claim 1, comprising a plurality of said repeating units; the plurality of repeating units are arranged in a mutually embedded manner in an edge-to-edge manner along the row direction and the column direction, so that one sub-pixel of one repeating unit is adjacent to each sub-pixel of the two light-emitting units of the adjacent repeating unit.

3. The pixel arrangement structure according to claim 2, wherein the plurality of repeating units are sequentially arranged in a row direction, and the repeating units in any two adjacent rows are arranged in a column direction in a staggered manner; or

The plurality of repeating units are distributed in sequence in the column direction, and the repeating units in any two adjacent columns are distributed in a staggered mode in the row direction.

4. The pixel arrangement structure according to any one of claims 1 to 3, wherein N is 12 and M is 3.

5. The pixel arrangement structure according to claim 4, wherein pixel defining layers are provided between a center point of the light emitting unit and three vertexes of the light emitting unit, the pixel defining layers between every two of the three sub-pixels in the light emitting unit are a first pixel defining layer, a second pixel defining layer, and a third pixel defining layer, respectively, so as to divide the light emitting unit into three sub-pixels having equal light emitting areas, and an included angle between two adjacent pixel defining layers is 120 °.

6. The pixel arrangement structure according to claim 5, wherein the sub-pixels have a hexagonal shape, the hexagonal shape is formed by a first edge, a second edge, a third edge, a fourth edge, a fifth edge and a sixth edge which are sequentially connected end to end, an included angle between the first edge and the second edge is 120 °, the first edge, the third edge and the fifth edge are parallel to each other, and the second edge, the fourth edge and the sixth edge are parallel to each other.

7. The pixel arrangement structure of claim 6, wherein the ratio of the lengths of the first, third and fifth sides is 1 (1.99-2.01): 0.99-1.01), and the ratio of the lengths of the second, fourth and sixth sides is 1 (1.99-2.01): 0.99-1.01).

8. The pixel arrangement structure according to claim 7, wherein a length of the first side is equal to a length of the second side.

9. The pixel arrangement structure according to claim 6, wherein the three sub-pixels of the light emitting unit are a first sub-pixel, a second sub-pixel, and a third sub-pixel, respectively;

wherein a first edge of the first sub-pixel and a second edge of the third sub-pixel are overlapped to form the first pixel defining layer; the second edge of the first sub-pixel is superposed with the first edge of the second sub-pixel to form the second pixel defining layer; the first edge of the third sub-pixel is superposed with the second edge of the second sub-pixel to form a third pixel defining layer; and the included angle between the third edge of the first sub-pixel and the sixth edge of the second sub-pixel is 60 °, the included angle between the sixth edge of the first sub-pixel and the third edge of the third sub-pixel is 60 °, and the included angle between the third edge of the second sub-pixel and the sixth edge of the third sub-pixel is 60 °.

10. The pixel arrangement structure according to claim 9, wherein the three light emitting units of the repeating unit are a first light emitting unit, a second light emitting unit, and a third light emitting unit, and each light emitting unit is independently composed of a first sub-pixel, a second sub-pixel, and a third sub-pixel, respectively, the second sub-pixel of the first light emitting unit being adjacent to the third sub-pixel of the second light emitting unit, the first sub-pixel of the third light emitting unit; and a third edge of the second sub-pixel of the first light-emitting unit and a fourth edge of the first sub-pixel of the third light-emitting unit are arranged in a side-to-side embedded manner, a fourth edge of the second sub-pixel of the first light-emitting unit and a third edge of the third sub-pixel of the second light-emitting unit are arranged in a side-to-side embedded manner, and a fourth edge of the third sub-pixel of the second light-emitting unit and a third edge of the first sub-pixel of the third light-emitting unit are arranged in a side-to-side embedded manner.

11. The pixel arrangement structure according to claim 5, wherein the pixel defining layer has a through hole, so that the sub-pixels of the light emitting unit can be connected to each other through the through hole.

12. The pixel arrangement structure according to claim 11, wherein the through hole is opened at an intersection of the first pixel defining layer, the second pixel defining layer, and the third pixel defining layer, and a center of the through hole coincides with a center point of the light emitting unit.

13. A mask assembly for preparing the pixel arrangement structure according to any one of claims 1 to 12, wherein the mask assembly comprises at least one mask plate, the mask plate is provided with openings, and the openings are used for forming the light emitting units in the repeating units.

14. A display panel comprising the pixel arrangement structure according to any one of claims 1 to 12.

Technical Field

The invention relates to the technical field of electronic display, in particular to a pixel arrangement structure, a mask plate and a display panel.

Background

Organic Light Emitting Diodes (OLEDs) have the advantages of self-luminescence, wide visual angle, high contrast, low power consumption, and fast response speed, and are becoming the mainstream choice for high-end flat panel displays. The method for preparing the organic light-emitting diode mainly adopts a vacuum evaporation device to deposit various functional layers on a substrate which is subjected to pretreatment, and further forms the required OLED device. At present, the improvement of the resolution of a display device and the enhancement of the display effect of the device become one of the directions of efforts of various manufacturers. However, the vapor deposition method requires a fine mask plate for manufacturing a high-resolution display device, and the manufacturing, cleaning and maintenance costs of the fine mask plate are high. Although the use of fine mask plates can be reduced by adopting an ink jet printing method to manufacture the organic light emitting diode, the organic light emitting diode also faces the trouble that ink with different components is accurately dropped in pixel pits by ink jet printing equipment with high precision. Therefore, how to reduce the preparation difficulty becomes a main research direction on the basis of improving the resolution.

Disclosure of Invention

Accordingly, there is a need for a pixel arrangement structure, a mask and a display panel. The pixel arrangement structure can reduce the preparation difficulty on the basis of improving the resolution ratio, and lays a foundation for the manufacture of a high-resolution OLED device.

A pixel arrangement structure comprises a repeating unit, wherein the repeating unit is formed by embedding three light-emitting units which have different light-emitting colors and the same shape in a side-to-side mode, and the light-emitting units are of an N-edge shape;

each light-emitting unit consists of M sub-pixels with the same light-emitting color and the same shape, and in the same repeating unit, one sub-pixel in each light-emitting unit is adjacent to each sub-pixel in the other two adjacent light-emitting units;

wherein N is an integer greater than or equal to 12, and M is an integer greater than or equal to 3.

In one embodiment, a plurality of the repeating units are included; the plurality of repeating units are arranged in a mutually embedded manner in an edge-to-edge manner along the row direction and the column direction, so that one sub-pixel of one repeating unit is adjacent to each sub-pixel of the two light-emitting units of the adjacent repeating unit.

In one embodiment, a plurality of repeating units are distributed in sequence in the row direction, and the repeating units in any two adjacent rows are distributed in a staggered manner in the column direction; or

The plurality of repeating units are distributed in sequence in the column direction, and the repeating units in any two adjacent columns are distributed in a staggered mode in the row direction.

In one embodiment, N is 12 and M is 3.

In one embodiment, pixel defining layers are arranged between a central point of the light emitting unit and three vertexes of the light emitting unit, the pixel defining layers between every two of three sub-pixels in the light emitting unit are respectively a first pixel defining layer, a second pixel defining layer and a third pixel defining layer so as to divide the light emitting unit into three sub-pixels with equal light emitting areas, and an included angle between two adjacent pixel defining layers is 120 °.

In one embodiment, the sub-pixels are hexagonal, the hexagon is composed of a first edge, a second edge, a third edge, a fourth edge, a fifth edge and a sixth edge which are sequentially connected end to end, an included angle between the first edge and the second edge is 120 °, the first edge, the third edge and the fifth edge are parallel to each other, and the second edge, the fourth edge and the sixth edge are parallel to each other.

In one embodiment, the length ratio of the first side, the third side and the fifth side is 1 (1.99-2.01): 0.99-1.01, and the length ratio of the second side, the fourth side and the sixth side is 1 (1.99-2.01): 0.99-1.01).

In one embodiment, the length of the first side is equal to the length of the second side.

In one embodiment, the three sub-pixels of the light emitting unit are respectively a first sub-pixel, a second sub-pixel and a third sub-pixel;

wherein a first edge of the first sub-pixel and a second edge of the third sub-pixel are overlapped to form the first pixel defining layer; the second edge of the first sub-pixel is superposed with the first edge of the second sub-pixel to form the second pixel defining layer; the first edge of the third sub-pixel is superposed with the second edge of the second sub-pixel to form a third pixel defining layer; and the included angle between the third edge of the first sub-pixel and the sixth edge of the second sub-pixel is 60 °, the included angle between the sixth edge of the first sub-pixel and the third edge of the third sub-pixel is 60 °, and the included angle between the third edge of the second sub-pixel and the sixth edge of the third sub-pixel is 60 °.

In one embodiment, the three light emitting units of the repeating unit are a first light emitting unit, a second light emitting unit and a third light emitting unit respectively, and each light emitting unit is independently composed of a first sub-pixel, a second sub-pixel and a third sub-pixel respectively, and the second sub-pixel of the first light emitting unit is adjacent to the third sub-pixel of the second light emitting unit and the first sub-pixel of the third light emitting unit; and a third edge of the second sub-pixel of the first light-emitting unit and a fourth edge of the first sub-pixel of the third light-emitting unit are arranged in a side-to-side embedded manner, a fourth edge of the second sub-pixel of the first light-emitting unit and a third edge of the third sub-pixel of the second light-emitting unit are arranged in a side-to-side embedded manner, and a fourth edge of the third sub-pixel of the second light-emitting unit and a third edge of the first sub-pixel of the third light-emitting unit are arranged in a side-to-side embedded manner.

In one embodiment, the pixel defining layer is formed with a through hole, so that the plurality of sub-pixels in the light emitting unit can be communicated with each other through the through hole.

In one embodiment, the through hole is opened at an intersection of the first pixel defining layer, the second pixel defining layer and the third pixel defining layer, and a center of the through hole coincides with a center point of the light emitting unit.

A mask plate assembly is used for preparing the pixel arrangement structure and comprises at least one mask plate, wherein an opening is formed in the mask plate and is used for forming a light emitting unit in the repeating unit.

A display panel comprises the pixel arrangement structure.

The pixel arrangement structure is embedded in the N-edge-shaped light-emitting units in an edge-to-edge mode, N is an integer greater than or equal to 12, so that the number of pixel units in a unit area can be increased, and the purpose of increasing the resolution of a display device is achieved.

Drawings

FIG. 1 is a schematic diagram of a pixel arrangement structure according to an embodiment of the present invention;

fig. 2 a is a schematic structural diagram of two repeating units along a row direction of the pixel arrangement structure shown in fig. 1, B is a schematic structural diagram of two repeating units along a column direction of the pixel arrangement structure shown in fig. 1, and C is a schematic structural diagram of one pixel unit in the pixel arrangement structure shown in fig. 1;

FIG. 3 is a schematic diagram of a light-emitting unit of the pixel arrangement shown in FIG. 1;

FIG. 4 is a schematic diagram of a light-emitting unit in the pixel arrangement shown in FIG. 1;

FIG. 5 is a schematic diagram of a sub-pixel in a light-emitting unit in the pixel arrangement structure shown in FIG. 1;

FIG. 6 is a schematic diagram of a light-emitting unit in the pixel arrangement shown in FIG. 1;

FIG. 7 is a schematic view showing a structure of a repeating unit composed of light emitting cells in the pixel arrangement structure shown in FIG. 6;

fig. 8 is a schematic view of a mask according to an embodiment of the present invention.

Detailed Description

In order that the invention may be more fully understood, a more particular description of the invention will now be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, a pixel arrangement structure 1 according to an embodiment of the present invention includes a repeating unit 10, where the repeating unit 10 is formed by three light emitting units 100 (e.g., a first light emitting unit 111, a second light emitting unit 112, and a third light emitting unit 113 in fig. 1) with different light emitting colors and the same shape, which are embedded side-to-side, and the light emitting units are N-sided; each light-emitting unit is composed of M sub-pixels 1000 with the same light-emitting color and the same shape, and in the same repeating unit, one sub-pixel in each light-emitting unit is adjacent to each sub-pixel in the other two adjacent light-emitting units to form a pixel unit; wherein N is an integer greater than or equal to 12, and M is an integer greater than or equal to 3.

The pixel arrangement structure is embedded in the N-edge-shaped light-emitting units in an edge-to-edge mode, N is an integer greater than or equal to 12, so that the number of pixel units in a unit area can be increased, and the purpose of increasing the resolution of a display device is achieved.

Understandably, the light emitting unit 100 is composed of M sub-pixels, which means that a pixel defining layer is formed in one light emitting unit, and the light emitting unit is divided into a plurality of sub-pixels by the pixel defining layer. In addition, the pixel defining layer constituting the periphery of the light emitting unit and the pixel defining layer in the light emitting unit are disposed in the same layer, and the thickness of the pixel defining layer constituting the periphery of the light emitting unit is greater than that of the pixel defining layer in the light emitting unit, so that the preparation is convenient, and the preparation is not particularly limited herein, and the preparation is understood to be within the protection scope of the present invention.

It can be understood that the shape of the light-emitting unit refers to a shape formed by splicing sub-pixels of the light-emitting unit together, and the N-edge light-emitting unit refers to a shape in which the periphery of the light-emitting unit has N edges, and each edge is formed by a pixel defining layer. Due to the difference of preparation processes, equipment and the like, each side does not need a segment in a strict sense, and an error acceptable in the field can exist; similarly, the length of each side, the interval between the sub-pixels, etc., may have an error acceptable in the art, and are determined according to the precision of the manufacturing process, and when the precision of the manufacturing process is high, the interval may be 0, which should not be construed as a limitation to the present invention.

Further, the pixel arrangement structure 1 includes a plurality of repeating units 10; the plurality of repeating units 10 are arranged in a side-by-side manner in a row direction and a column direction so as to be fitted to each other, so that one sub-pixel of one repeating unit and one sub-pixel of each of two light-emitting units adjacent to each other in the adjacent repeating unit constitute a pixel unit.

For example: as shown in a of fig. 2, two repeating units, a first repeating unit 11 and a second repeating unit 22, respectively, are arranged along the row direction, the first repeating unit 11 includes three light emitting units, a first light emitting unit 111, a second light emitting unit 112, and a third light emitting unit 113, respectively, and the second repeating unit 22 includes three light emitting units, a first light emitting unit 221, a second light emitting unit 222, and a third light emitting unit 223, respectively. The second light-emitting unit 112 of the first repeating unit 11 is adjacent to the first light-emitting unit 221 of the second repeating unit 22 and the third light-emitting unit 223 of the second repeating unit 22, and the adjacent light-emitting units are arranged in a side-to-side manner, such that one sub-pixel of the second light-emitting unit 112 in the first repeating unit 11, one sub-pixel of the first light-emitting unit 221 in the second repeating unit 22 and one sub-pixel of the third light-emitting unit 223 in the second repeating unit 22 constitute a pixel unit (as shown in c in fig. 2).

Also, as shown in B in fig. 2, two repeating units, a first repeating unit 11 and a second repeating unit 22, respectively, are arranged along the column direction, the first repeating unit 11 includes three light emitting units, a first light emitting unit 111, a second light emitting unit 112, and a third light emitting unit 113, respectively, and the second repeating unit 22 includes three light emitting units, a first light emitting unit 221, a second light emitting unit 222, and a third light emitting unit 223, respectively. The second light-emitting unit 112 of the first repeating unit 11, the third light-emitting unit 113 of the first repeating unit 11 and the first light-emitting unit 221 of the second repeating unit 22 are adjacent to each other, and the adjacent light-emitting units are arranged in a side-to-side manner in a fitted manner with each other, so that one sub-pixel of the second light-emitting unit 112 in the first repeating unit 11, one sub-pixel of the third light-emitting unit 113 in the first repeating unit 11 and one sub-pixel of the first light-emitting unit 221 in the second repeating unit 22 constitute a pixel unit (as shown in C in fig. 2).

Further, as shown in a in fig. 2, a plurality of repeating units are sequentially distributed in the row direction; as shown in fig. 2B, the repeating units of any two adjacent rows are distributed in a staggered manner in the column direction; it is understood that the distribution of the dislocations means that the connecting line between the center points of the first repeating unit and the second repeating unit is not parallel to (at an angle to) the column direction.

Further, as shown in a in fig. 2, along the row direction, a line connecting the center point of the first subpixel 111 of the first repeating unit 11 and the center point of the first subpixel 221 of the second repeating unit 22 is parallel to the row direction; a line connecting the center point of the second subpixel 112 of the first repeating unit 11 and the center line point of the second subpixel 222 of the second repeating unit 22 is parallel to the row direction; a line connecting the center point of the third subpixel 113 of the first repeating unit 22 and the center point of the third subpixel 223 of the second repeating unit 22 is parallel to the row direction;

further, as shown in B in fig. 2, in the column direction, a connection line between the center point of the second subpixel 112 of the first repeating unit 11 and the center point of the first subpixel 221 of the second repeating unit 22 is parallel to the column direction; further, the center point of the second subpixel 112 of the first repeating unit 11, the center point of the first subpixel 221 of the second repeating unit 22, and the center point of the third subpixel 223 of the second repeating unit 22 are on a straight line and are parallel to the column direction; a line connecting the center point of the first subpixel 111 of the first repeating unit 11 and the center point of the third subpixel 113 of the first repeating unit 11 is parallel to the column direction.

Further, a plurality of repeating units are sequentially distributed in the column direction; the repeating units in any two adjacent columns are distributed in a staggered manner in the row direction, and at this time, the difference from the above embodiment is that the rows and the columns are interchanged, which is specifically described above and will not be described herein again.

It will be appreciated that the emission color of the light-emitting unit can be selected according to existing emission color combination principles, such as: the three light emitting units are a red light emitting unit, a blue light emitting unit and a green light emitting unit, respectively.

Further, the first light emitting unit is a red light emitting unit, the second light emitting unit is a blue light emitting unit, and the third light emitting unit is a green light emitting unit.

Further, N is 12, that is, the light emitting unit is dodecagonal; further, M is 3, so as to further improve the resolution of the display panel.

It is understood that M is 3 means that each light emitting unit includes 3 sub-pixels having the same light emitting color and the same shape, and it is understood that the light emitting unit is divided into three sub-pixels by disposing a pixel boundary in the light emitting unit, and the specific dividing manner is not particularly limited, and is understood to be within the protection scope of the present invention.

Further, as shown in fig. 3, pixel defining layers are disposed between the central point of the light emitting unit and three vertices of the light emitting unit, and the pixel defining layers between every two of the three sub-pixels in the light emitting unit are respectively the first pixel defining layer L₁A second pixel defining layer L₂A third pixel defining layer L₃Dividing the light-emitting unit into three sub-pixels with equal light-emitting areas; and the included angle between two adjacent pixel defining layers is 120 degrees, so that the arrangement of the repeating units is facilitated, and the number of pixel units in unit area is increased.

Further, as shown in fig. 3, through holes 2000 are opened on the division layer for dividing the sub-pixels in the light emitting unit, so that the sub-pixels in the light emitting unit are mutually communicated through the through holes 2000.

It is understood that the through hole is a hole penetrating the pixel defining layer, and when ink is deposited in the light emitting unit, the ink can flow into the adjacent sub-pixel region by passing, and the position and shape of the through hole are not particularly limited as long as the above function can be achieved. Specifically, the opening direction of the through hole is perpendicular to the thickness direction of the pixel defining layer.

Above-mentioned pixel arrangement structure, the luminous colour of the several sub-pixel of same luminescence unit is the same, so at the in-process of carrying out the preparation, same luminescence unit can once only make, and owing to seted up the through-hole that makes the several sub-pixel link up each other among the same luminescence unit, so the ink can circulate between the sub-pixel, and then improves the homogeneity between each sub-pixel, also can avoid the ink to pile up the emergence of phenomenon to a certain extent, when reducing the preparation degree of difficulty, improves the filming effect of film.

It should be noted that the aperture of the through hole can be adjusted according to actual conditions, and only the ink circulation needs to be maintained, and the aperture is far smaller than the length of the pixel defining layer provided with the through hole. Furthermore, the length of the pixel defining layer provided with the through hole is L, and the aperture of the through hole is smaller than L/100.

It is understood that the through hole can be formed in the first pixel defining layer L₁A second pixel defining layer L₂And a third pixel defining layer L₃Above, the number of through holes is not particularly limited. Further, as shown in fig. 3, a via hole 2000 is opened in the first pixel defining layer L₁A second pixel defining layer L₂And a third pixel defining layer L₃So that the sub-pixels in the light emitting unit are mutually communicated through the through hole 2000, and the hole center of the through hole 2000 is overlapped with the central point of the light emitting unit, thereby further improving the uniformity of the film; further, the number of the through holes is 1, that is, other positions may not need to be provided with the through holes.

It can be understood that when the pixel defining layer dividing the plurality of sub-pixels is provided with the through holes, the pixel defining layer provided with the through holes is not disconnected, and the shape of the sub-pixels of the present invention is not limited thereto.

As shown in fig. 1 and 4, the three light emitting units having different light emitting colors and the same shape of the repeating unit are a first light emitting unit 111, a second light emitting unit 112, and a third light emitting unit 113, respectively. The first light emitting unit 111 is composed of three sub-pixels with the same light emitting color and the same shape, namely a first sub-pixel 1111, a second sub-pixel 1112 and a third sub-pixel 1113; the second light emitting unit 112 is composed of three sub-pixels with the same light emitting color and the same shape, namely a first sub-pixel 1121, a second sub-pixel 1122 and a third sub-pixel 1123; the third light emitting unit 113 is composed of three sub-pixels with the same light emitting color and the same shape, which are a first sub-pixel 1131, a second sub-pixel 1132 and a third sub-pixel 1133.

Further, the light emitting areas of the sub-pixels of the light emitting units are equal.

Further, as shown in fig. 5, the sub-pixels of each light emitting unit are hexagonal, and respectively include a first side a, a second side b, a third side c, a fourth side d, a fifth side e, and a sixth side f, which are sequentially connected end to end, wherein an included angle between the first side a and the second side b is 120 °, the first side a, the third side c, and the fifth side e are parallel to each other, and the second side b, the fourth side d, and the sixth side f are parallel to each other. Further, the sub-pixels of each light emitting unit have a hexagonal shape like an L.

Furthermore, the length ratio of the first side a, the third side c and the fifth side e is 1 (1.99-2.01) to 0.99-1.01; further, the length of the third side c is equal to the sum of the lengths of the first side a and the fifth side e; further, the ratio of the lengths of the first side a, the third side c and the fifth side e is 1:2: 1;

furthermore, the ratio of the lengths of the second side b, the fourth side d and the sixth side f is 1 (1.99-2.01) to 0.99-1.01; further, the length of the fourth side d is equal to the sum of the lengths of the second side b and the sixth side f. Further, the ratio of the lengths of the second side b, the fourth side d and the sixth side f is 1:2: 1.

Further, the length of the first side a is equal to the length of the second side b to further improve the resolution.

It is understood that the "hexagon" in the present invention does not need to be a hexagon in a strict sense, but broadly means a figure having six sides, and there may be an error acceptable in the art according to differences in manufacturing processes and the like.

Further, as shown in fig. 6, three sub-pixels of the light emitting unit are a first sub-pixel 1131, a second sub-pixel 1132 and a third sub-pixel 1133, respectively;

the six sides of the first subpixel 1131 are a first side a, a second side b, a third side c, a fourth side d, a fifth side e and a sixth side f in sequence; the six sides of the second sub-pixel 1132 are, in order, a first side a ", a second side b", a third side c ", a fourth side d", a fifth side e ", and a sixth side f"; six sides of the third subpixel 1133 are a first side a ', a second side b', a third side c ', a fourth side d', a fifth side e 'and a sixth side f' in sequence;

wherein the first edge a of the first sub-pixel 1131 and the second edge b' of the third sub-pixel 1132 are overlapped to form a first pixel defining layer L₁(ii) a The second side b of the first sub-pixel 1131 is overlapped with the first side a ″ of the second sub-pixel 1132 to form a second pixel defining layer L₂(ii) a The first side a' of the third sub-pixel 1133 and the second side b ″ of the second sub-pixel are overlapped to form a third pixel defining layer L₃(ii) a And the angle between the third side c of the first sub-pixel 1131 and the sixth side f "of the second sub-pixel 1132 is 60 °, the angle between the sixth side f of the first sub-pixel 1131 and the third side c 'of the third sub-pixel 1133 is 60 °, and the angle between the third side c" of the second sub-pixel 1132 and the sixth side f' of the third sub-pixel 1133 is 60 °. The arrangement of the sub-pixels of the other light emitting units is as described above, and will not be described herein again.

Further, as shown in fig. 7, the three light emitting units of the repeating unit are a first light emitting unit 111, a second light emitting unit 112, and a third light emitting unit 113, respectively, and each light emitting unit is independently composed of a first sub-pixel, a second sub-pixel, and a third sub-pixel, respectively; the second subpixel 1112 of the first light emitting unit 111 is adjacent to the third subpixel 1123 of the second light emitting unit 112 and the first subpixel 1131 of the third light emitting unit 113, the third side c ″ of the second subpixel 1112 of the first light emitting unit 111 and the fourth side d of the first subpixel 1131 of the third light emitting unit 113 are in edge-to-edge embedded arrangement, the fourth side d ″ of the second subpixel 1112 of the first light emitting unit 111 and the third side c 'of the third subpixel 1123 of the second light emitting unit 112 are in edge-to-edge embedded arrangement, and the fourth side d' of the third subpixel 1123 of the second light emitting unit 112 and the third side c of the first subpixel 1131 of the third light emitting unit 113 are in edge-to-edge embedded arrangement.

The invention also provides a mask plate assembly which comprises at least one mask plate, wherein the mask plate is provided with an opening, and the opening is used for forming the light-emitting unit in the repeating unit. The related technical features of the pixel arrangement structure are as described above, and are not described herein again.

Understandably, when the pixel arrangement structure is prepared, the number of the mask plates is determined according to the shape and the light-emitting area of the light-emitting unit, when the shape and the light-emitting area of each light-emitting unit in the repeating unit are the same, one mask plate can be shared, and only corresponding pixel phases need to be moved in the preparation process, specifically: forming a light emitting unit of one emission color in each repeating unit through a mask plate, and then moving the mask plate to correspond to a light emitting unit of another emission color in each repeating unit to form a light emitting unit of another emission color; and so on. When the shapes and the light emitting areas of the light emitting units are different, three mask plates with openings can be adopted, and the shapes of the openings respectively correspond to the light emitting units of the pixel arrangement structure.

It should be noted that, when the shapes and the light emitting areas of the light emitting units are the same, as shown in a in fig. 8, three masks (a first mask 401, a second mask 402, and a third mask 403) may be used to form three light emitting units with different light emitting colors in the repeating unit, respectively; three light-emitting units with different light-emitting colors of the repeating unit can also be prepared by using one mask, and only one pixel phase D needs to be moved for each light-emitting unit for preparing one light-emitting color, wherein one pixel phase D is a distance between center points of two adjacent light-emitting units (as shown in fig. 8B), which should not be construed as limiting the present invention.

An embodiment of the present invention further provides a display panel, including the above pixel arrangement structure. The pixel arrangement structure is as described above, and will not be described herein again. The display panel may be used in any device having a display function, such as a computer display, a mobile phone screen, a pad, a watch, a game machine display, a billboard, and the like, and is not particularly limited herein.

The pixel defining layer is deposited on the substrate and defines pixel pits corresponding to the sub-pixels of the pixel arrangement structure, and the sub-pixels of the pixel arrangement structure are arranged in the corresponding pixel pits to form light emitting units with corresponding light emitting colors. The pixel arrangement structure is the same as above, and is not particularly limited herein.

It is understood that the pixel defining layer in the present invention may be a single-layer structure or a multi-layer structure, and only the above-mentioned pixel arrangement structure is required to be formed, for example: the lamination of the hydrophilic material and the hydrophobic material is not particularly limited as long as the film formation uniformity of the ink in the pixel well is improved.

It is understood that the display panel may further include a substrate, a pixel defining layer, a bottom electrode, a top electrode, and the like, wherein the substrate, the pixel defining layer, the bottom electrode, the top electrode, and the like may be made of any material and arranged according to the needs, and are not particularly limited herein.

The invention also provides a method for preparing the pixel arrangement structure, which comprises the following steps:

the invention also provides a method for preparing the display panel, which comprises the following steps:

s101: providing a substrate;

the substrate is a substrate commonly used in the art, such as a glass rigid substrate or a PI flexible substrate, and a driving TFT may be further disposed on the substrate for driving the light emitting element, where the driving TFT includes but is not limited to a polysilicon TFT, a metal oxide TFT, and the like, and a driving circuit array may be fabricated on the substrate by a yellow light process.

S102: and manufacturing a patterned bottom electrode in each light-emitting area of the substrate.

The bottom electrode can be prepared by methods conventional in the art and will not be described further herein.

S103: depositing a pixel defining layer on a substrate and defining pixel pits corresponding to the pixel arrangement structure;

the pixel arrangement structure is as described above, and will not be described herein again.

S104: forming each light emitting unit;

it is understood that the light emitting unit may be formed by a conventional method by masking with a mask as shown in a in fig. 7 in step S104, and is not particularly limited herein. It can be understood that, as described above, the number of the masks is related to the shape and the light emitting area of the pre-formed light emitting unit, and the light emitting units with the same shape and the same light emitting area can be prepared by using the same mask, and at this time, after the light emitting unit with one light emitting color is formed, the mask is moved to print the ink with the second light emitting color. The specific deposition method of the ink is not particularly limited, and a conventional method such as inkjet printing can be used.

S105: forming a top electrode;

the top electrode in step S105 may be prepared by a conventional method and material, and is not particularly limited.

The pixel arrangement structure is adopted in the preparation method, the N-edge-shaped light-emitting units are embedded in a side-to-side mode, the resolution of a display device can be improved, and the M sub-pixels in each light-emitting unit of the pixel arrangement structure can be prepared together due to the same light-emitting color, so that the manufacturing difficulty is effectively reduced, the precision requirement of equipment is reduced, meanwhile, the size of each sub-pixel can be effectively reduced, and meanwhile, the ink is prevented from overflowing due to the fact that the area of the pixel is too small, and high-resolution display is achieved under the same equipment precision.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.