A pixel arrangement structure and related device

Abstract

The present invention discloses a pixel arrangement structure and related devices, wherein the first sub-pixel is located at the center position of a first virtual quadrilateral and at the four vertex positions of the first virtual quadrilateral; the second sub-pixel is located at the midpoint position of the side of the first virtual quadrilateral; the third sub-pixel is located in the second virtual quadrilateral, and four second virtual quadrilaterals constitute a first virtual quadrilateral. In the second virtual quadrilateral, the center distance between the third sub-pixel and the two first sub-pixels is equal; and / or, the center distance between the third sub-pixel and the two second sub-pixels is equal. Compared with the existing pixel arrangement structure, this pixel arrangement method can arrange the first sub-pixel, the second sub-pixel and the third sub-pixel closely under the same process conditions, and reduce the spacing between adjacent pixels as much as possible, thereby increasing the pixel opening area under the same resolution condition, reducing the driving current of the display device, and thus increasing the life of the display device.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a pixel arrangement structure, an organic electroluminescent display panel, a high-precision metal mask and a display device. Background Art

[0002] Organic Light Emitting Diode (OLED) display devices are one of the hot topics in the field of flat panel display research today. Compared with liquid crystal displays, OLED display devices have the advantages of low energy consumption, low production cost, self-luminescence, wide viewing angle and fast response speed. At present, in the field of flat panel displays such as mobile phones, PDAs, digital cameras, OLED display devices have begun to replace traditional liquid crystal displays (LCD).

[0003] The structure of an OLED display device mainly includes: a base substrate, and pixels arranged in a matrix on the base substrate. Each pixel is generally formed by using organic materials through a high-precision metal mask plate using evaporation film forming technology to form an organic electroluminescent structure at the corresponding pixel position on the array substrate.

[0004] However, in current OLED display devices, the distance between pixels in the pixel arrangement structure is relatively large, resulting in a smaller pixel opening area under the same resolution, so that the driving current needs to be increased to meet the display brightness requirements. However, when OLED works under a large driving current, it is easy to cause the device to age faster, thereby shortening the life of the OLED display device. Summary of the invention

[0005] In view of this, embodiments of the present invention provide a pixel arrangement structure, an organic electroluminescent display panel, a high-precision metal mask and a display device to solve the problem of large distances between pixels in existing OLED devices.

[0006] Therefore, an embodiment of the present invention provides a pixel arrangement structure, including: a first sub-pixel, a second sub-pixel and a third sub-pixel;

[0007] The first sub-pixel is located at the center position of a first virtual quadrilateral and at four vertex positions of the first virtual quadrilateral;

[0008] The second sub-pixel is located at the midpoint of the side of the first virtual quadrilateral;

[0009] The third sub-pixel is located in a second virtual quadrilateral, and the second virtual quadrilateral is formed by connecting two second sub-pixels located at midpoints of two adjacent sides of the first virtual quadrilateral, and the first sub-pixel adjacent to the two second sub-pixels and located at the center of the first virtual quadrilateral and at a vertex of the first virtual quadrilateral, respectively, as vertex corners in sequence, and four second virtual quadrilaterals constitute one first virtual quadrilateral;

[0010] In the second virtual quadrilateral, the distance between the center of the third sub-pixel and the centers of the two first sub-pixels is equal; and / or, in the second virtual quadrilateral, the distance between the center of the third sub-pixel and the centers of the two second sub-pixels is equal.

[0011] In a possible implementation, in the above-mentioned pixel arrangement structure provided in an embodiment of the present invention, within the second virtual quadrilateral, the distance between the center of the third sub-pixel and the centers of the two second sub-pixels is not equal to the distance between the center of the third sub-pixel and the centers of the two first sub-pixels.

[0012] In a possible implementation, in the above pixel arrangement structure provided by an embodiment of the present invention, in the second virtual quadrilateral, two opposite internal angles are equal to 90°, and one of the other two opposite internal angles is greater than 90°, and the other is less than 90°.

[0013] In a possible implementation manner, in the above pixel arrangement structure provided by an embodiment of the present invention, two second virtual quadrilaterals located at diagonal positions of one first virtual quadrilateral have the same shape.

[0014] In a possible implementation, in the above pixel arrangement structure provided by an embodiment of the present invention, within the first virtual quadrilateral, the third sub-pixels are distributed in an “X” shape.

[0015] In a possible implementation, in the above-mentioned pixel arrangement structure provided in an embodiment of the present invention, within the second virtual quadrilateral, the third sub-pixel is symmetrical along a line connecting the centers of the two second sub-pixels, and the third sub-pixel is symmetrical along a line connecting the centers of the two first sub-pixels.

[0016] In a possible implementation, in the above-mentioned pixel arrangement structure provided in an embodiment of the present invention, within the second virtual quadrilateral, the spacing between the third sub-pixel and the two first sub-pixels is equal and is the first spacing, the spacing between the third sub-pixel and the two second sub-pixels is equal and is the second spacing, and the first spacing is equal to the second spacing.

[0017] In a possible implementation, in the above-mentioned pixel arrangement structure provided in an embodiment of the present invention, within the second virtual quadrilateral, the spacing between one of the first sub-pixels and two of the second sub-pixels is equal and is the third spacing, the spacing between another of the first sub-pixels and two of the second sub-pixels is equal and is the fourth spacing, the fourth spacing is greater than or equal to the third spacing, and the third spacing is greater than or equal to the first spacing.

[0018] In a possible implementation, in the above-mentioned pixel arrangement structure provided in an embodiment of the present invention, the shapes of the first sub-pixel, the second sub-pixel and the third sub-pixel are polygons; or, the shapes of the first sub-pixel, the second sub-pixel and the third sub-pixel are polygons with rounded corners.

[0019] In a possible implementation, in the above-mentioned pixel arrangement structure provided in an embodiment of the present invention, the shapes of the first sub-pixel, the second sub-pixel and the third sub-pixel are quadrilaterals, hexagons, octagons, quadrilaterals with chamfered corners, hexagons with chamfered corners or octagons with chamfered corners.

[0020] In a possible implementation, in the above pixel arrangement structure provided by an embodiment of the present invention, the first sub-pixel is a red sub-pixel, and the second sub-pixel is a blue sub-pixel; or, the first sub-pixel is a blue sub-pixel, and the second sub-pixel is a red sub-pixel;

[0021] The third sub-pixel is a green sub-pixel.

[0022] In a possible implementation, in the above-mentioned pixel arrangement structure provided by an embodiment of the present invention, the area of ​​the third sub-pixel is smaller than the area of ​​the first sub-pixel, and the area of ​​the third sub-pixel is smaller than the area of ​​the second sub-pixel.

[0023] On the other hand, an embodiment of the present invention further provides an organic electroluminescent display panel, comprising the above pixel arrangement structure provided by an embodiment of the present invention, wherein adjacent first virtual quadrilaterals are arranged in row and column directions in a manner of sharing sides.

[0024] On the other hand, an embodiment of the present invention further provides a display device, comprising the above-mentioned organic electroluminescent display panel provided by an embodiment of the present invention.

[0025] On the other hand, an embodiment of the present invention also provides a high-precision metal mask for producing the above-mentioned pixel arrangement structure provided by an embodiment of the present invention, including: multiple opening areas, the opening areas corresponding to the shape and position of the first sub-pixel, the second sub-pixel or the third sub-pixel.

[0026] The beneficial effects of the embodiments of the present invention include:

[0027] An embodiment of the present invention provides a pixel arrangement structure, an organic electroluminescent display panel, a high-precision metal mask and a display device, wherein in the pixel arrangement structure: a first sub-pixel is located at the center position of a first virtual quadrilateral and at the four vertex positions of the first virtual quadrilateral; a second sub-pixel is located at the midpoint position of a side of the first virtual quadrilateral; a third sub-pixel is located in the second virtual quadrilateral, and the second virtual quadrilateral is formed by connecting two second sub-pixels located at the midpoint positions of two adjacent sides of the first virtual quadrilateral, and a first sub-pixel adjacent to the two second sub-pixels and respectively located at the center position of the first virtual quadrilateral and a vertex position of the first virtual quadrilateral as vertices in sequence, and the four second virtual quadrilaterals constitute a first virtual quadrilateral. In the second virtual quadrilateral, the distance between the center of the third sub-pixel and the centers of the two first sub-pixels is equal; and / or, in the second virtual quadrilateral, the distance between the center of the third sub-pixel and the centers of the two second sub-pixels is equal. Compared with the existing pixel arrangement structure, this pixel arrangement method can arrange the first sub-pixel, the second sub-pixel and the third sub-pixel closely under the same process conditions, and reduce the spacing between adjacent pixels as much as possible, thereby increasing the pixel opening area under the condition of equal resolution, reducing the driving current of the display device, and thus increasing the life of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 One of the schematic diagrams of the pixel arrangement structure provided by an embodiment of the present invention;

[0029] Figure 2 A second schematic diagram of a pixel arrangement structure provided by an embodiment of the present invention;

[0030] Figure 3 A third schematic diagram of a pixel arrangement structure provided by an embodiment of the present invention;

[0031] Figure 4 A fourth schematic diagram of a pixel arrangement structure provided by an embodiment of the present invention;

[0032] Figure 5 A fifth schematic diagram of a pixel arrangement structure provided by an embodiment of the present invention;

[0033] Figure 6 A sixth schematic diagram of a pixel arrangement structure provided by an embodiment of the present invention;

[0034] Figure 7 A seventh schematic diagram of a pixel arrangement structure provided by an embodiment of the present invention;

[0035] Figure 8 A schematic diagram of the structure of an organic electroluminescent display panel provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The shapes and sizes of the components in the drawings do not reflect the actual proportions, and are only intended to illustrate the contents of the present invention.

[0038] An embodiment of the present invention provides a pixel arrangement structure, such as Figures 1 to 3 As shown, it includes: a first sub-pixel 01, a second sub-pixel 02 and a third sub-pixel 03;

[0039] The first sub-pixel 01 is located at the center position of the first virtual quadrilateral and at the four vertex positions of the first virtual quadrilateral;

[0040] The second sub-pixel 02 is located at the midpoint of the side of the first virtual quadrilateral;

[0041] The third sub-pixel 03 is located in the second virtual quadrilateral, and the second virtual quadrilateral is formed by connecting two second sub-pixels 02 located at the midpoints of two adjacent sides of the first virtual quadrilateral, and a first sub-pixel 01 adjacent to the two second sub-pixels 02 and located at the center of the first virtual quadrilateral and at a vertex of the first virtual quadrilateral, respectively, as vertex corners in sequence, and the four second virtual quadrilaterals constitute a first virtual quadrilateral;

[0042] In the second virtual quadrilateral, the distance D1 between the center of the third sub-pixel 03 and the centers of the two first sub-pixels 01 is equal; and / or, in the second virtual quadrilateral, the distance D2 between the center of the third sub-pixel 03 and the centers of the two second sub-pixels 02 is equal.

[0043] Specifically, compared with the existing pixel arrangement structure, the above-mentioned pixel arrangement method provided by the embodiment of the present invention can arrange the first sub-pixel 01, the second sub-pixel 02 and the third sub-pixel 03 closely under the same process conditions, and reduce the spacing between adjacent pixels as much as possible. In addition, adjusting the center distance between the third sub-pixel 03 and the two first sub-pixels 01 to be equal in the second virtual quadrilateral can further reduce the spacing between the third sub-pixel 03 and the adjacent first sub-pixels 01; adjusting the center distance between the third sub-pixel 03 and the two second sub-pixels 02 to be equal in the second virtual quadrilateral can further reduce the spacing between the third sub-pixel 03 and the adjacent second sub-pixel 02. Thereby, under the condition of equal resolution, the pixel opening area is increased, the driving current of the display device is reduced, and the life of the display device is increased.

[0044] It should be noted that in the above-mentioned pixel arrangement structure provided in the embodiment of the present invention, the pixel mentioned is located at a certain position, which refers to the position range of the pixel, as long as the pixel overlaps with the position. In specific implementation, the center of the pixel can overlap with the position. Of course, the center of the pixel can also not overlap with the position, that is, there is an offset between the two, which is not limited here. In addition, the center of the pixel can be the geometric center of the pixel graphic, or the center of the pixel luminous color, which is not limited here.

[0045] Optionally, in the above pixel arrangement structure provided by the embodiment of the present invention, in order to ensure that the pixels are evenly distributed, the center of each pixel is made as close to the corresponding position as possible.

[0046] It should be noted that the first virtual quadrilateral mentioned in the display arrangement structure provided in the embodiment of the present invention is Figure 1 The largest dotted box in the figure, the second virtual quadrilateral is Figure 1 Small and medium dashed boxes, in Figure 1 The first virtual quadrilateral includes four second virtual quadrilaterals. The first virtual quadrilateral and the second virtual quadrilateral can be rectangles, squares, or quadrilaterals approximating rectangles and squares, which is not limited here.

[0047] Optionally, in the above pixel arrangement structure provided by the embodiment of the present invention, Figures 1 to 3 As shown, within the second virtual quadrilateral, the distance D2 between the center of the third sub-pixel 03 and the centers of the two second sub-pixels 02 is not equal to the distance D1 between the center of the third sub-pixel 03 and the centers of the two first sub-pixels 01 .

[0048] Specifically, by adjusting the distance between the center of the third sub-pixel 03 and the center of the first sub-pixel 01 (the second sub-pixel 02) within the second virtual quadrilateral, the first sub-pixel 01, the second sub-pixel 02 and the third sub-pixel 03 can be closely arranged under the same process conditions, and the spacing between adjacent pixels can be reduced as much as possible, thereby increasing the pixel opening area under the condition of the same resolution, reducing the driving current of the display device, and thereby increasing the life of the display device.

[0049] Optionally, in the above pixel arrangement structure provided by the embodiment of the present invention, Figures 1 to 3 As shown, in the second virtual quadrilateral, two opposite internal angles are equal to 90°, ①=②=90°; one of the other two opposite internal angles is greater than 90°, ③>90°, and the other is less than 90°, ④<90°, that is, ③+④=180°.

[0050] Specifically, the second virtual quadrilateral is a non-rectangular figure, which can arrange the first sub-pixel 01, the second sub-pixel 02 and the third sub-pixel 03 closely under the same process conditions, and reduce the distance between adjacent pixels as much as possible, thereby increasing the pixel opening area under the same resolution condition, reducing the driving current of the display device, and further increasing the life of the display device.

[0051] Optionally, in the above pixel arrangement structure provided by the embodiment of the present invention, Figures 1 to 3 As shown, the shapes of the two second virtual quadrilaterals located at the diagonal positions of a first virtual quadrilateral are the same. That is, the shapes of the second virtual quadrilateral in the upper left corner and the second virtual quadrilateral in the lower right corner are consistent, and the shapes of the second virtual quadrilateral in the upper right corner and the second virtual quadrilateral in the lower left corner are consistent. By setting the shapes of the second virtual quadrilaterals at the diagonal positions to be consistent, the first sub-pixel 01, the second sub-pixel 02 and the third sub-pixel 03 can be arranged closely under the same process conditions, and the spacing between adjacent pixels can be reduced as much as possible, thereby increasing the pixel opening area under the same resolution, reducing the driving current of the display device, and thus increasing the life of the display device.

[0052] Optionally, in the above pixel arrangement structure provided by the embodiment of the present invention, Figures 4 to 6 As shown, in the second virtual quadrilateral, the spacing between the third sub-pixel 03 and the two first sub-pixels 01 is equal to the first spacing L1, the spacing between the third sub-pixel 03 and the two second sub-pixels 02 is equal to the second spacing L2, and the first spacing L1 is equal to the second spacing L2. The spacing between the third sub-pixel 03 and the first sub-pixel 01 (or the second sub-pixel 02) is minimized to increase the pixel opening area under the condition of equal resolution, reduce the driving current of the display device, and thus increase the life of the display device.

[0053] It should be noted that the minimum spacing between sub-pixels mentioned in the display arrangement structure provided in the embodiment of the present invention refers to the shortest distance between the edges of the sub-pixels that are close to each other, and this distance is smaller than the distance between the centers of two sub-pixels.

[0054] Optionally, in the above pixel arrangement structure provided in the embodiment of the present invention, the spacing between the third sub-pixel 03 and the adjacent first sub-pixel 01 needs to be greater than or equal to the process limit distance, and the spacing between the third sub-pixel 03 and the adjacent second sub-pixel 02 needs to be greater than or equal to the process limit distance to meet the process requirements. In addition, the spacing is generally the process limit distance, and the numerical range of the spacing is generally related to the manufacturing process used. When a high-precision metal mask (FMM) is used in conjunction with an etching process to form a pixel pattern, the minimum spacing is about 16μm. When a pixel pattern is formed using a process such as laser or electroforming, the spacing will be smaller.

[0055] Optionally, in the above pixel arrangement structure provided by the embodiment of the present invention, Figure 4 and Figure 6 As shown, within the second virtual quadrilateral, the spacing between a first sub-pixel 01 and two second sub-pixels 02 is equal to the third spacing L3, the spacing between another first sub-pixel 01 and two second sub-pixels 02 is equal to the fourth spacing L4, the fourth spacing L4 is greater than or equal to the third spacing L3, and the third spacing L3 is greater than or equal to the first spacing L1. By maximizing the spacing between the first sub-pixel 01 and the second sub-pixel 02, the pixel opening area is increased under the condition of equal resolution, the driving current of the display device is reduced, and the life of the display device is increased.

[0056] Optionally, in the above pixel arrangement structure provided by the embodiment of the present invention, Figures 4 to 6 As shown, the shapes of the first sub-pixel 01, the second sub-pixel 02 and the third sub-pixel 03 may be polygonal; or Figures 1 to 3 As shown, the shapes of the first sub-pixel 01 , the second sub-pixel 02 and the third sub-pixel 03 may be polygons with rounded corners.

[0057] Optionally, in the above pixel arrangement structure provided by the embodiment of the present invention, Figures 1 to 6 As shown, the shapes of the first sub-pixel 01 , the second sub-pixel 02 and the third sub-pixel 03 are quadrilaterals, hexagons, octagons, quadrilaterals with rounded corners, hexagons with rounded corners or octagons with rounded corners.

[0058] Specifically, Figure 1 The case where the shapes of the first sub-pixel 01 , the second sub-pixel 02 , and the third sub-pixel 03 are quadrilaterals with rounded corners is shown. Figure 2It shows a case where the shape of the first sub-pixel 01 is a quadrilateral with rounded corners, the shape of the second sub-pixel 02 is a hexagon with rounded corners, and the shape of the third sub-pixel 03 is an octagon. Figure 3 The diagram shows a case where the shapes of the first sub-pixel 01 and the second sub-pixel 02 are octagons with rounded corners, and the shape of the third sub-pixel 03 is a quadrilateral with rounded corners. Figure 4 The case where the shapes of the first sub-pixel 01 , the second sub-pixel 02 , and the third sub-pixel 03 are quadrilaterals is shown. Figure 5 The diagram shows a case where the shape of the first sub-pixel 01 is a quadrilateral, the shape of the second sub-pixel 02 is a hexagon, and the shape of the third sub-pixel 03 is an octagon. Figure 6 The first sub-pixel 01 and the second sub-pixel 02 are octagonal in shape, and the third sub-pixel 03 is a quadrilateral in shape. The above is only an example to illustrate the shapes of the first sub-pixel 01, the second sub-pixel 02 and the third sub-pixel 03, and the actual application is not limited thereto.

[0059] Optionally, in the above pixel arrangement structure provided by an embodiment of the present invention, within the second virtual quadrilateral, the third sub-pixel 03 can be symmetrical along the center line of the two second sub-pixels 02, and the third sub-pixel 03 can be symmetrical along the center line of the two first sub-pixels 01.

[0060] In order to ensure that the mask pattern is consistent for the same pixel during preparation, thereby simplifying the patterning process, optionally, in the pixel arrangement structure provided in the embodiment of the present invention, Figures 1 to 7 As shown, the shapes of the first sub-pixels 01 can be consistent, the shapes of the second sub-pixels 02 can be consistent, and the shapes of the third sub-pixels 03 can be consistent.

[0061] Alternatively, optionally, in the above-mentioned pixel arrangement structure provided in an embodiment of the present invention, the shapes of at least two first sub-pixels 01 may be inconsistent, the shapes of at least two second sub-pixels 02 may be inconsistent, and the shapes of at least two third sub-pixels 03 may be inconsistent, which is not limited here.

[0062] Furthermore, optionally, in the above pixel arrangement structure provided by the embodiment of the present invention, in a first virtual quadrilateral, when the four third sub-pixels 03 have the same or similar patterns, their arrangement angles may be the same or may be the same as follows: Figures 1 to 7 As shown, within the first virtual quadrilateral, the four third sub-pixels 03 are distributed in an "X" shape, that is, the four third sub-pixels 03 are in the shape of long strips and point to the center position of the first virtual quadrilateral along the length direction of the long strips; alternatively, the angles of the four third sub-pixels 03 graphics can be rotated arbitrarily, which is not limited here.

[0063] Optionally, the specific shapes, positional relationships, parallel and angular relationships, etc. of the first sub-pixel 01, the second sub-pixel 02 and the third sub-pixel 03 can be designed as needed. In actual processes, there may be some deviations due to limitations of process conditions or other factors. Therefore, as long as the shape, position and relative positional relationship of each sub-pixel roughly meet the above conditions, they all belong to the pixel arrangement structure provided in the embodiment of the present invention.

[0064] Optionally, in the above pixel arrangement structure provided by the embodiment of the present invention, the first sub-pixel 01 may be a red sub-pixel, and the second sub-pixel 02 may be a blue sub-pixel; or, the first sub-pixel 01 may be a blue sub-pixel, and the second sub-pixel 02 may be a red sub-pixel; and the third sub-pixel 03 may be a green sub-pixel. Figure 7 As shown, the green sub-pixel G located in the second virtual quadrilateral can form a light-emitting pixel point with the red sub-pixel R and the blue sub-pixel B located at any two adjacent corners of the second virtual quadrilateral.

[0065] Furthermore, since the human eye is more sensitive to green light, optionally, in the pixel arrangement structure provided in the embodiment of the present invention, Figures 1 to 7 As shown, the area of ​​the third sub-pixel 03 may be smaller than the area of ​​the first sub-pixel 01, and the area of ​​the third sub-pixel 03 may be smaller than the area of ​​the second sub-pixel 02. That is, the area of ​​the green sub-pixel is smaller than the area of ​​the red sub-pixel, and the area of ​​the green sub-pixel is smaller than the area of ​​the blue sub-pixel. In other words, the area of ​​the green sub-pixel is the smallest.

[0066] Optionally, in the above pixel arrangement structure provided in the embodiment of the present invention, the area of ​​the second sub-pixel 02 may be the same as the area of ​​the first sub-pixel 01, that is, the area of ​​the red sub-pixel is the same as the area of ​​the blue sub-pixel. Alternatively, the area of ​​the second sub-pixel 02 may be different from the area of ​​the first sub-pixel 01, that is, the area of ​​the red sub-pixel is different from the area of ​​the blue sub-pixel, which is not limited here. Generally, the luminous efficiency and life span of the blue sub-pixel are lower than those of the red sub-pixel. Therefore, if Figure 7 As shown, the area of ​​the blue sub-pixel can be set to be larger than the area of ​​the red sub-pixel.

[0067] Based on the same inventive concept, an embodiment of the present invention further provides an organic electroluminescent display panel, such as Figure 8 As shown, it includes a plurality of closely arranged pixel arrangement structures ( Figure 8 The pixel arrangement structure may be any of the above pixel arrangement structures provided by the embodiment of the present invention, and adjacent first virtual quadrilaterals are arranged in the row direction and the column direction in a manner of sharing sides. That is, two adjacent pixel arrangement structures share the first sub-pixel 01 and the second sub-pixel 02 located on the sides of the adjacent first virtual quadrilaterals, for example Figure 8The three pixels enclosed by each ellipse are pixels shared by two adjacent pixel arrangement structures. Since the principle of solving the problem of the organic electroluminescent display panel is similar to the aforementioned pixel arrangement structure, the implementation of the organic electroluminescent display panel can refer to the implementation of the aforementioned pixel arrangement structure, and the repeated parts will not be repeated.

[0068] Specifically, the organic electroluminescent display panel provided by the embodiment of the present invention is as follows: Figure 8 As shown, the first sub-pixel 01 and the second sub-pixel 02 are arranged alternately in the row direction, and the first sub-pixel 01 and the second sub-pixel 02 are also arranged alternately in the column direction. The third sub-pixel 01 is located in a second virtual quadrilateral surrounded by two first sub-pixels 01 and two second sub-pixels 02. In this way, when displaying, any two adjacent first sub-pixels 01 and second sub-pixels 02 can form a luminous pixel point with a third sub-pixel 03 adjacent thereto, and the pixels achieve a high-resolution display effect by using a low-resolution physical resolution through the principle of borrowing colors.

[0069] Based on the same inventive concept, an embodiment of the present invention also provides a high-precision metal mask for producing the above-mentioned pixel arrangement structure provided in an embodiment of the present invention, including: a plurality of evenly arranged opening areas, the opening areas corresponding to the shape and position of the first sub-pixel, the second sub-pixel or the third sub-pixel.

[0070] Based on the same inventive concept, an embodiment of the present invention further provides a display device, including any of the above-mentioned organic electroluminescent display panels provided in the embodiment of the present invention. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, etc. The implementation of the display device can refer to the above-mentioned embodiment of the organic electroluminescent display panel, and the repeated parts will not be repeated.

[0071] The above-mentioned pixel arrangement structure, organic electroluminescent display panel, high-precision metal mask and display device provided by the embodiments of the present invention, wherein in the pixel arrangement structure: the first sub-pixel is located at the center position of the first virtual quadrilateral and at the four vertex positions of the first virtual quadrilateral; the second sub-pixel is located at the midpoint position of the side of the first virtual quadrilateral; the third sub-pixel is located in the second virtual quadrilateral, and the second virtual quadrilateral is formed by connecting two second sub-pixels located at the midpoint positions of two adjacent sides of the first virtual quadrilateral, and first sub-pixels adjacent to the two second sub-pixels and respectively located at the center position of the first virtual quadrilateral and a vertex position of the first virtual quadrilateral as vertices in sequence, and the four second virtual quadrilaterals constitute a first virtual quadrilateral. In the second virtual quadrilateral, the distance between the center of the third sub-pixel and the centers of the two first sub-pixels is equal; and / or, in the second virtual quadrilateral, the distance between the center of the third sub-pixel and the centers of the two second sub-pixels is equal. Compared with the existing pixel arrangement structure, this pixel arrangement method can arrange the first sub-pixel, the second sub-pixel and the third sub-pixel closely under the same process conditions, and reduce the spacing between adjacent pixels as much as possible, thereby increasing the pixel opening area under the condition of equal resolution, reducing the driving current of the display device, and thus increasing the life of the display device.

[0072] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A pixel arrangement structure, characterized in that: include: a first sub-pixel, a second sub-pixel and a third sub-pixel; The first sub-pixel is located at the center position of the virtual octagon and at four non-adjacent vertex positions of the virtual octagon; The second sub-pixels are located at the remaining four non-adjacent vertex corners of the virtual octagon; The third sub-pixel is located in a virtual quadrilateral, and the virtual quadrilateral is formed by sequentially connecting two of the first sub-pixels and two of the second sub-pixels as vertex angles, wherein one of the first sub-pixels is located at the center of the virtual octagon, another of the first sub-pixel and two of the second sub-pixels are located at three vertex angles of the virtual octagon, and four of the virtual quadrilaterals constitute one virtual octagon; In the virtual quadrilateral, the distance between the center of the third sub-pixel and the centers of the two first sub-pixels is equal; or, in the virtual quadrilateral, the distance between the center of the third sub-pixel and the centers of the two second sub-pixels is equal; In the virtual quadrilateral, a distance between a center of the third sub-pixel and centers of two second sub-pixels is not equal to a distance between a center of the third sub-pixel and centers of two first sub-pixels; In the virtual quadrilateral, two opposite internal angles are equal to 90°, and one of the other two opposite internal angles is greater than 90° and the other is less than 90°; In the virtual quadrilateral, the third sub-pixel is symmetrical along a line connecting the centers of the two second sub-pixels, and the third sub-pixel is symmetrical along a line connecting the centers of the two first sub-pixels.

2. The pixel arrangement structure according to claim 1, characterized in that: The two virtual quadrilaterals located at diagonal positions of one virtual octagon have the same shape.

3. The pixel arrangement structure according to claim 2, characterized in that: Within the virtual octagon, the third sub-pixels are distributed in an "X" shape.

4. The pixel arrangement structure according to claim 1, wherein: In the virtual quadrilateral, the spacing between the third sub-pixel and the two first sub-pixels is equal to a first spacing, the spacing between the third sub-pixel and the two second sub-pixels is equal to a second spacing, and the first spacing is equal to the second spacing.

5. The pixel arrangement structure according to claim 4, characterized in that: In the virtual quadrilateral, the spacing between one of the first sub-pixels and two of the second sub-pixels is equal and is the third spacing, the spacing between another of the first sub-pixels and two of the second sub-pixels is equal and is the fourth spacing, the fourth spacing is greater than or equal to the three spacings, and the third spacing is greater than or equal to the first spacing.

6. The pixel arrangement structure according to any one of claims 1 to 5, characterized in that: The shapes of the first sub-pixel, the second sub-pixel and the third sub-pixel are polygons; or the shapes of the first sub-pixel, the second sub-pixel and the third sub-pixel are polygons with rounded corners.

7. The pixel arrangement structure according to claim 6, characterized in that: The first sub-pixel, the second sub-pixel, and the third sub-pixel are in a shape of a quadrilateral, a hexagon, an octagon, a quadrilateral with rounded corners, a hexagon with rounded corners, or an octagon with rounded corners.

8. The pixel arrangement structure according to any one of claims 1 to 5, characterized in that: The first sub-pixel is a red sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a green sub-pixel; or, the first sub-pixel is a blue sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel is a green sub-pixel.

9. The pixel arrangement structure according to claim 8, characterized in that: An area of ​​the third sub-pixel is smaller than an area of ​​the first sub-pixel, and an area of ​​the third sub-pixel is smaller than an area of ​​the second sub-pixel.

10. An organic electroluminescent display panel, characterized in that: The pixel arrangement structure comprises the pixel arrangement structure as claimed in any one of claims 1 to 9, wherein adjacent virtual octagons are arranged in row and column directions in a manner of sharing sides.

11. A display device, characterized in that: Comprising the organic electroluminescent display panel as claimed in claim 10.

12. A high-precision metal mask for manufacturing the pixel arrangement structure according to any one of claims 1 to 9, characterized in that: include: A plurality of opening areas, wherein the opening areas correspond to the shapes and positions of the first sub-pixel, the second sub-pixel or the third sub-pixel.

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