US 11,974,473 B2
Display substrate, manufacturing method thereof and display device
Mengmeng Du, Beijing (CN); Xiangdan Dong, Beijing (CN); Qi Liu, Beijing (CN); Fan He, Beijing (CN); and Bo Zhang, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Chengdu (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 16/977,866
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Chengdu (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Nov. 29, 2019, PCT No. PCT/CN2019/122156
§ 371(c)(1), (2) Date Sep. 3, 2020,
PCT Pub. No. WO2021/102988, PCT Pub. Date Jun. 3, 2021.
Prior Publication US 2022/0399423 A1, Dec. 15, 2022
Int. Cl. H10K 59/131 (2023.01); H10K 59/35 (2023.01)
CPC H10K 59/131 (2023.02) [H10K 59/351 (2023.02); H10K 59/353 (2023.02)] 17 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate;
a pixel defining layer, disposed on the base substrate and including a plurality of openings; and
at least one photo spacer, disposed on a side of the pixel defining layer away from the base substrate, wherein
a distance from any point at a bottom of the at least one photo spacer contacting the pixel defining layer to an upper edge of a side wall of the plurality of openings is greater than or equal to 5 μm,
wherein the display substrate further comprises:
a pixel circuit structure, disposed between the base substrate and the pixel defining layer and including a first signal line and a second signal line which are parallel to each other, wherein
a first orthographic projection of the at least one photo spacer on the base substrate is located between a second orthographic projection of the first signal line on the base substrate and a third orthographic projection of the second signal line on the base substrate.