US 12,225,780 B2
Display substrate, manufacturing method thereof, and display device
Kui Gong, Beijing (CN); and Xianxue Duan, Beijing (CN)
Assigned to HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Sep. 1, 2023, as Appl. No. 18/459,495.
Application 18/459,495 is a continuation of application No. 17/644,056, filed on Dec. 13, 2021, granted, now 11,785,810.
Application 17/644,056 is a continuation of application No. 16/079,131, granted, now 11,211,435, issued on Dec. 28, 2021, previously published as PCT/CN2018/074423, filed on Jan. 29, 2018.
Claims priority of application No. 201710449807.7 (CN), filed on Jun. 14, 2017.
Prior Publication US 2023/0413614 A1, Dec. 21, 2023
Int. Cl. H01L 23/00 (2006.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 50/822 (2023.01); H10K 59/122 (2023.01); H10K 71/00 (2023.01); H10K 71/20 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 50/171 (2023.02); H10K 50/822 (2023.02); H10K 71/00 (2023.02); H10K 71/233 (2023.02); H10K 71/621 (2023.02); H10K 59/1201 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A display substrate, comprising a base substrate, a pixel definition layer arranged on the base substrate and a common layer, wherein
the pixel definition layer comprises a first film layer and a second film layer, the first film layer is arranged at a side of the second film layer adjacent to the base substrate, and an orthogonal projection of a top surface of the first film layer onto the base substrate completely falls within an orthogonal projection of a bottom surface of the second film layer onto the base substrate,
wherein the common layer is arranged on a top surface of the second film layer,
an orthogonal projection of the common layer on the base substrate overlaps the orthogonal projection of the top surface of the first film layer onto the base substrate.