US 11,785,810 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 Dec. 13, 2021, as Appl. No. 17/644,056.
Application 17/644,056 is a continuation of application No. 16/079,131, granted, now 11,211,435, 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 2022/0102450 A1, Mar. 31, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 23/00 (2006.01); H10K 59/122 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 50/822 (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)] 18 Claims
OG exemplary drawing
 
1. A display substrate, comprising a base substrate and a pixel definition layer arranged on the base substrate, 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 first film layer comprises a first dam member and a second dam member, the second dam member is arranged at a side of the first dam member away from the base substrate,
wherein the second film layer comprises a third dam member, an orthogonal projection of a top surface of the second dam member onto the base substrate completely falls within an orthogonal projection of a bottom surface of the third dam member onto the base substrate, and an edge of the orthogonal projection of the top surface of the second dam member onto the base substrate is spaced apart by a certain distance from an edge of the orthogonal projection of the bottom surface of the third dam member onto the base substrate.