Display substrate, manufacturing method, display apparatus and mask

Inventors: Yansong Li (Beijing, CN); Shanshan Bai (Beijing, CN); Lujiang Huangfu (Beijing, CN)

Assignee: BOE TECHNOLOGY GROUP CO., LTD.

H10K59/352 H10K59/1201 H10K59/353

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Quick Facts

Patent No.: US 12684980
App. No.: 17/760,358
Granted: Jul 14, 2026
Kind: B2

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Abstract

The present disclosure provides a display substrate, a manufacturing method thereof, a display apparatus and a mask. In the display substrate, a pixel unit at least includes a first sub-pixel, a second sub-pixel and a third sub-pixel, a luminance brightness ratio of the first sub-pixel is greater than a luminance brightness ratio of the second sub-pixel, and the luminance brightness ratio of the second sub-pixel is greater than a luminance brightness ratio of the third sub-pixel. The first sub-pixel and the second sub-pixel are located in a first column, the third sub-pixel is located in a second column, and the plurality of pixel units includes a plurality of first pixel units and a plurality of second pixel units.

Claims (17)

1 . A display substrate, comprising a base substrate and a plurality of pixel units arranged in an array form on the base substrate, wherein each pixel unit at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, a luminance brightness ratio of the first sub-pixel is greater than a luminance brightness ratio of the second sub-pixel, and the luminance brightness ratio of the second sub-pixel is greater than a luminance brightness ratio of the third sub-pixel; in a first direction, the first sub-pixel and the second sub-pixel are located in a first column, the third sub-pixel is located in a second column, and the first column and the second column are arranged in a second direction crossing the first direction; the plurality of pixel units comprises a plurality of first pixel units and a plurality of second pixel units, and the first sub-pixel and the second sub-pixel in the first pixel unit are arranged in an order opposite to the first sub-pixel and the second sub-pixel in the second pixel unit in the first direction; and the plurality of pixel units is arranged in rows and columns, the first pixel units and the second pixel units in each row are arranged alternately, a distance between the first sub-pixels is less than a distance between the second sub-pixels in the first pixel unit and the second pixel unit adjacent to each other, and the first sub-pixels and the second sub-pixels in the pixel units in each column are arranged in a same column in the first direction;

wherein in the pixel units in each row, at least a part of third sub-pixels in the first pixel units are staggered from at least a part of third sub-pixels in the second pixel units in the first direction.

2 . The display substrate according to claim 1 , wherein in the pixel units in each row, at least a part of first sub-pixels in the first pixel units are staggered from at least a part of second sub-pixels in the second pixel units in the first direction, and in the pixel units in each row, at least a part of second sub-pixels in the first pixel units are staggered from at least a part of first sub-pixels in the second pixel units in the first direction.

3 . The display substrate according to claim 1 , wherein the third sub-pixels in the pixel units in each row have a same height in the first direction.

4 . The display substrate according to claim 1 , wherein in the pixel units in each row, a height of the third sub-pixel in each first pixel unit is the same as a height of the first sub-pixel in each second pixel unit in the first direction.

5 . The display substrate according to claim 1 , wherein in each of the first pixel units and the second pixel units, a pixel brightness center of a pixel comprising the first sub-pixel, the second sub-pixel and the third sub-pixel is located between the first sub-pixel and the second sub-pixel, and a distance L1 between the pixel brightness center and a center of gravity of the first sub-pixel in the pixel unit to which the first sub-pixel belongs satisfies L1=(⅓) L, where L is a distance between the center of gravity of the first sub-pixel and a center of gravity of the second sub-pixel in the same pixel unit, wherein in the pixel units in each row, the pixel brightness center of the first pixel unit and the pixel brightness center of the second pixel unit are located in the same row in the second direction, and the pixel brightness centers in the pixel units are arranged evenly in an array form in the first direction and the second direction.

6 . The display substrate according to claim 1 , wherein the pixel units in each column comprises a plurality of first pixel units or a plurality of second pixel units.

7 . The display substrate according to claim 6 , wherein the first sub-pixels and the second sub-pixels are arranged alternately and spaced apart from each other at a same interval in the pixel units in each column.

8 . The display substrate according to claim 1 , wherein the first pixel units and the second pixel units are arranged alternately in the first direction in the pixel units in each column.

9 . The display substrate according to claim 1 , wherein the first sub-pixel, the second sub-pixel and the third sub-pixel are each of a rectangular shape, and a long side of the third sub-pixel extends in the first direction.

10 . The display substrate according to claim 1 , wherein the first sub-pixel comprises a green sub-pixel, the second sub-pixel comprises a red sub-pixel and the third sub-pixel comprises a blue sub-pixel.

11 . The display substrate according to claim 1 , wherein in each pixel unit, a distance between a center of gravity of the first sub-pixel and a center of gravity of the second sub-pixel, a distance between the center of gravity of the first sub-pixel and a center of gravity of the third sub-pixel, and a distance between the center of gravity of the second sub-pixel and the center of gravity of the third sub-pixel are the same.

12 . A display apparatus, comprising the display substrate according to claim 1 .

13 . A method for manufacturing a display substrate, wherein the display substrate comprises a base substrate and a plurality of pixel units arranged in an array form on the base substrate, the plurality of pixel units is arranged in rows and columns, and each pixel unit at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, wherein the method comprises forming at least one of the first sub-pixel, the second sub-pixel and the third sub-pixel through a mask, the mask comprises a mask body and a plurality of pixel apertures formed in the mask body, the plurality of pixel apertures comprises pixel apertures arranged in columns in a second direction, the pixel apertures in each column comprise a plurality of pixel apertures arranged in a first direction crossing the second direction, and a portion of the mask body between two adjacent columns of pixel apertures extends in the first direction; the first sub-pixel and the second sub-pixel are located in a first column, the third sub-pixel is located in a second column, a luminance brightness ratio of the first sub-pixel is greater than a luminance brightness ratio of the second sub-pixel, and the luminance brightness ratio of the second sub-pixel is greater than a luminance brightness ratio of the third sub-pixel; the plurality of pixel units comprises a plurality of first pixel units and a plurality of second pixel units; in the first pixel unit, the first sub-pixel is close to a first end of the third sub-pixel, and the second sub-pixel is close to a second end of the third sub-pixel; in the second pixel unit, the first sub-pixel is close to a second end of the third sub-pixel, and the second sub-pixel is close to a first end of the third sub-pixel; the first pixel units and the second pixel units are arranged alternately in the pixel units in each row, and in the first pixel unit and the second pixel unit adjacent to each other, a distance between the first sub-pixels is less than a distance between the second sub-pixels; and the first sub-pixels and the second sub-pixels in the pixel units in each column are located in a same column;

14 . The display apparatus according to claim 12 , wherein in the pixel units in each row, at least a part of first sub-pixels in the first pixel units are staggered from at least a part of second sub-pixels in the second pixel units in the first direction, and in the pixel units in each row, at least a part of second sub-pixels in the first pixel units are staggered from at least a part of first sub-pixels in the second pixel units in the first direction.

15 . The display apparatus according to claim 12 , wherein the third sub-pixels in the pixel units in each row have a same height in the first direction.