JP-2026076310-A - Pixel array structure, display board, and display device

Abstract

[Challenge] To improve the resolution of the pixel array structure and further enhance display quality. [Solution] The pixel array structure comprises a plurality of pixel groups (01), each pixel group (01) including a first subpixel (111), a second subpixel (112), a third subpixel (113), and a fourth subpixel (114). In the pixel group (01), the connecting line between the center (C2) of the second subpixel (112) and the center (C3) of the third subpixel (113) is a first line segment (LS1). The first subpixel (111) and the fourth subpixel (114) are located between the second subpixel (112) and the third subpixel (113), and are provided on both sides of the first line segment (LS1). The connecting line between the center (C1) of the first subpixel (111) and the center (C4) of the fourth subpixel (114) is a second line segment (LS2) whose length is shorter than the length of the first line segment (LS1). [Selection Diagram] Figure 2

Inventors

• ▲劉▼ 利▲賓▼
• ▲楊▼ ▲倩▼
• 王 ▲紅▼▲麗▼
• 皇甫 ▲魯▼江

Assignees

• 京東方科技集團股▲ふん▼有限公司

Dates

Publication Date

20260511

Application Date

20260212

Priority Date

20180209

Claims (19)

1. A pixel array structure comprising multiple pixel groups, Each pixel group includes a first subpixel, a second subpixel, a third subpixel, and a fourth subpixel. In the aforementioned pixel group, the connecting line between the center of the second subpixel and the center of the third subpixel is a first line segment, and the first subpixel and the fourth subpixel are located between the second subpixel and the third subpixel and are provided on both sides of the first line segment, respectively. The connecting line between the center of the first subpixel and the center of the fourth subpixel is the second line segment. The length of the second line segment is less than the length of the first line segment, the first line segment extends in a first direction, and the second line segment extends in a second direction. The first virtual line extending along the first direction through the center of the first subpixel does not overlap with the second subpixel and the third subpixel, and neither the second virtual line extending along the first direction through the center of the second subpixel nor the third virtual line extending along the first direction through the center of the third subpixel overlaps with the first subpixel and the fourth subpixel. A pixel array structure in which a plurality of the first subpixels and a plurality of the fourth subpixels are arranged alternately along the second direction, wherein in the second direction, the minimum distance between the boundaries of adjacent first subpixels and fourth subpixels is smaller than the dimension of the third subpixel in the second direction, and the maximum distance between the boundaries of adjacent first subpixels and fourth subpixels is larger than the dimension of the third subpixel in the second direction.
2. The pixel array structure according to claim 1, wherein the minimum distance between adjacent first subpixels and fourth subpixels is greater than the dimension of the first subpixel or the fourth subpixel in the second direction.
3. The shape of the first subpixel includes a first tip, and the dimension of the first tip in the first direction is smaller than the dimension of the portion where the center of the first subpixel is located in the first direction. The pixel array structure according to claim 1, wherein the dimension of the portion where the center of the first subpixel is located in the first direction is the maximum dimension of the first subpixel in the first direction, and the dimension of the portion where the center of the first subpixel is located in the second direction is the maximum dimension of the first subpixel in the second direction.
4. The shape of the second subpixel includes a second tip, the dimension of the second tip in the first direction being smaller than the dimension of the portion where the center of the second subpixel is located in the first direction, and the shape of the third subpixel includes a third tip, the dimension of the third tip in the first direction being smaller than the dimension of the portion where the center of the third subpixel is located in the first direction. The pixel array structure according to claim 1, wherein a fourth virtual line extending along the first direction and overlapping with at least one of the second and third tipping details passes through at least one of the first subpixel or the fourth subpixel.
5. The dimension of the portion where the center of the second subpixel is located in the first direction is the maximum dimension of the second subpixel in the first direction, and the dimension of the portion where the center of the second subpixel is located in the second direction is the maximum dimension of the second subpixel in the second direction. The pixel array structure according to claim 4, wherein the dimension of the portion where the center of the third subpixel is located in the first direction is the maximum dimension of the third subpixel in the first direction, and the dimension of the portion where the center of the third subpixel is located in the second direction is the maximum dimension of the third subpixel in the second direction.
6. In the first direction, the distance between the centers of adjacent second and third subpixels includes at least a first distance and a second distance, wherein the first distance is smaller than the second distance. In the second direction, the distance between the centers of adjacent first and fourth subpixels includes at least a third distance and a fourth distance, wherein the third distance is smaller than the fourth distance. When L is half the distance between the centers of two third subpixels adjacent to the same second subpixel in the first direction, or half the distance between the centers of two second subpixels adjacent to the same third subpixel in the first direction, The pixel array structure according to any one of claims 1 to 5, wherein the possible range of the first distance is from 1/2L to L, and the possible range of the second distance is from L to 3/2L.
7. A pixel array structure according to any one of claims 1 to 5, wherein the centers of a plurality of the first subpixels are located on a fifth virtual line extending along the second direction, the centers of a plurality of the second subpixels are located on a sixth virtual line extending along the second direction, the centers of a plurality of the third subpixels are located on a seventh virtual line extending along the second direction, the fifth virtual line is located between the sixth virtual line and the seventh virtual line, and the first subpixel row and the second subpixel row are spaced apart in the first direction, and the first subpixel row and the third subpixel row are spaced apart in the first direction.
8. The pixel array structure according to any one of claims 1 to 5, wherein the ratio of the length of the second line segment to the length of the first line segment is 3/4 or less.
9. The pixel array structure according to any one of claims 1 to 5, wherein the second line segment and the first line segment bisect each other perpendicularly.
10. The pixel array structure according to any one of claims 1 to 5, wherein the ratio of the length of the second line segment to the length of the first line segment is 3/8 or more.
11. The aforementioned multiple pixel groups are arranged in an array, forming multiple rows and multiple columns, with even-numbered row pixel groups and odd-numbered row pixel groups being offset from each other. The length of the center-connecting line between adjacent second and third subpixels in two adjacent pixel groups in the first direction is less than the length of the first line segment. The pixel array structure according to any one of claims 1 to 5, wherein in adjacent odd-numbered rows or adjacent even-numbered rows, the length of the center connecting line between adjacent first subpixels and fourth subpixels in two adjacent pixel groups in the second direction is greater than the length of the second line segment.
12. The ratio of the length of the center-connecting line between adjacent second and third subpixels in two adjacent pixel groups in the first direction to the length of the first line segment is 1/2 or less, and/or The pixel array structure according to claim 11, wherein in adjacent odd-numbered rows or adjacent even-numbered rows, the ratio of the length of the center connecting line between adjacent first subpixels and fourth subpixels in two adjacent pixel groups in the second direction to the length of the second line segment is 1 or more and 3 or less.
13. The pixel array structure according to claim 11, wherein the extension of the second line segment of each pixel group passes through the midpoint of the center connecting lines of the second subpixel and the third subpixel in two pixel groups adjacent to and in the same row as the pixel group in the second direction.
14. The pixel array structure according to claim 13, wherein, in adjacent odd-numbered rows or adjacent even-numbered rows, the intersection point between the center connecting line of two third subpixels in two adjacent pixel groups arranged in the second direction and the first line segment in the pixel group located between the two third subpixels is located between the center of the first line segment and the center of the second subpixel.
15. The pixel array structure according to claim 1, wherein, within the same pixel group, the closest distance between the second subpixel and the first subpixel is L1, the closest distance between the second subpixel and the fourth subpixel is L2, the closest distance between the third subpixel and the first subpixel is L3, the closest distance between the third subpixel and the fourth subpixel is L4, and L1 = L2 = L3 = L4.
16. The pixel array structure according to claim 1, wherein the closest distances of the first subpixel or the fourth subpixel to the second subpixel and the third subpixel in the pixel group adjacent to it in the second direction and not located in the same row are L5 and L6, respectively, and L5 = L6.
17. The pixel array structure according to any one of claims 1 to 5, wherein the first subpixel and the fourth subpixel are subpixels of the same color.
18. A display board comprising the pixel array structure described in any one of claims 1 to 5.
19. A display device comprising the display board described in claim 18.

Description

This patent application claims priority to Chinese Patent Application No. 201810137016.5, filed on 9 February 2018, and all contents disclosed in the aforementioned Chinese Patent Application are incorporated herein by reference as part of the embodiments of this disclosure. The embodiments of this disclosure relate to a pixel array structure, a display substrate, and a display device. With the continuous development of display technology, the demand for higher resolution in display devices is increasing. Due to advantages such as higher display quality, the application range of high-resolution display devices is also expanding. Typically, the resolution of a display device can be increased by reducing the size of the pixels and the spacing between them. However, reducing the size of the pixels and the spacing between them demands increasingly higher precision in the manufacturing process, thus leading to increased difficulty and costs in the manufacturing of display devices. On the other hand, sub-pixel rendering (SPR) technology utilizes the differences in the human eye's resolution for different colored subpixels. Unlike the usual three subpixels (red, green, and blue), it simply defines a mode for a single pixel and shares subpixels of a color with low resolution at specific locations among different pixels. This allows it to simulate the same pixel resolution performance with relatively fewer subpixels, thereby reducing the complexity of the manufacturing process and lowering manufacturing costs. The embodiments of this disclosure provide a pixel array structure, a display substrate, and a display device. The pixel array structure can improve the uniformity of the distribution of sensitive color subpixels by adjusting the spacing between sensitive color subpixels, thereby increasing the visual resolution of the pixel array structure and improving the display quality of the pixel array structure. At least one embodiment of the present disclosure provides a pixel array structure comprising a plurality of pixel groups, each pixel group comprising a first subpixel, a second subpixel, a third subpixel, and a fourth subpixel, wherein in the pixel group, the line connecting the center of the second subpixel and the center of the third subpixel is a first line segment, the first subpixel and the fourth subpixel are located between the second subpixel and the third subpixel and are provided on either side of the first line segment, and the line connecting the center of the first subpixel and the center of the fourth subpixel is a second line segment whose length is shorter than the length of the first line segment. For example, the ratio of the lengths of the second line segment to the first line segment is 3/4 or less. For example, the second and first line segments bisect each other perpendicularly. For example, the ratio of the lengths of the second line segment to the first line segment is 3/8 or greater. For example, in the pixel group, both the first subpixel and the fourth subpixel are elongated, and the extension direction of the first subpixel does not overlap with the extension direction of the fourth subpixel. For example, the angle between the extension direction of the first subpixel and the extension direction of the fourth subpixel is between 70° and 100°. For example, the first subpixel and the fourth subpixel are arranged symmetrically with respect to the first line segment, and/or the second subpixel and the third subpixel are arranged symmetrically with respect to the second line segment. For example, the first line segment extends in a first direction, the second line segment extends in a second direction, the plurality of pixel groups are arranged in an array to form multiple rows and multiple columns, the pixel groups in even rows and the pixel groups in odd rows are offset from each other, the length of the center connecting line between adjacent second and third subpixels in two adjacent pixel groups in the first direction is smaller than the length of the first line segment, and in adjacent odd rows or adjacent even rows, the length of the center connecting line between adjacent first and fourth subpixels in two adjacent pixel groups in the second direction is larger than the length of the second line segment. For example, in the first direction, the ratio of the length of the center-connecting line between adjacent second and third subpixels in two adjacent pixel groups to the length of the first line segment is 1/2 or less, and/or, in adjacent odd-numbered rows or adjacent even-numbered rows, the ratio of the length of the center-connecting line between adjacent first and fourth subpixels in two adjacent pixel groups in the second direction to the length of the second line segment is 1 or more and 3 or less. For example, the extension of the second line segment of each pixel group passes through the midpoint of the center connecting lines of two pixel groups adjacent to and in the sam