US 12,389,764 B2
Display substrate and display device
Xiaoqing Shu, Beijing (CN); Hongwei Ma, Beijing (CN); and Xiangdan Dong, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/425,000
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Apr. 26, 2020, PCT No. PCT/CN2020/087000
§ 371(c)(1), (2) Date Jul. 22, 2021,
PCT Pub. No. WO2021/217296, PCT Pub. Date Nov. 4, 2021.
Prior Publication US 2022/0320235 A1, Oct. 6, 2022
Int. Cl. H10K 59/131 (2023.01); H10K 59/122 (2023.01); H10K 59/35 (2023.01)
CPC H10K 59/131 (2023.02) [H10K 59/122 (2023.02); H10K 59/352 (2023.02); H10K 59/353 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate;
a first power line located on the base substrate, the first power line comprising a plurality of first sub power lines extending in a first direction and a plurality of second sub power lines located between every two adjacent first sub power lines, the second sub power line being configured to connect two adjacent first sub power lines;
a pixel defining layer located at a side of the first power line away from the base substrate, the pixel defining layer comprising a plurality of openings to define effective light-emitting regions of a plurality of sub-pixels, the plurality of sub-pixels comprising a first color sub-pixel, and the first color sub-pixel comprising a first effective light-emitting region;
wherein at least one of the first sub power lines comprises at least one first break, and a part of the first effective light-emitting region is located at the at least one first break so that the first sub power line does not pass through the first effective light-emitting region in the first direction;
the plurality of sub-pixels further comprise a second color sub-pixel and a third color sub-pixel, the second color sub-pixel comprises a second effective light-emitting region, and the third color sub-pixel comprises a third effective light-emitting region;
the display substrate further comprising: a connection portion arranged in the same layer and made of the same material as the first power line; a strip-shaped portion, extending in the first direction, disposed in the same layer and made of the same material as the first power line;
wherein, in a direction perpendicular to the base substrate, the third effective light-emitting region overlaps with both of the strip-shaped portion and the connection portion, the strip-shaped portion and the connection portion are arranged in the first direction;
in the direction perpendicular to the base substrate, the first sub power line overlaps with the third effective light-emitting region, a portion of the first sub-power line overlapping with the third effective light-emitting region comprises a pad block extending along the first direction, the strip-shaped portion and the connection portion are located at one side of a straight line passing through a center of the third effective light-emitting region and extending in the first direction, and the first sub power line is located at the other side of the straight line, orthogonal projections of the pad block and the strip-shaped portion on the straight line overlap;
in the direction perpendicular to the base substrate, a portion of each third effective light-emitting region overlapping with the pad block is a first overlapping portion, and a portion of the third effective light-emitting region overlapping with the connection portion and the strip-shaped portion is a second overlapping portion, and an area ratio of the first overlapping portion to the second overlapping portion is approximately 0.9-1.1.