US 12,295,234 B2
Display substrate and manufacturing method therefor, and display panel and display device
Chuanxiang Xu, Beijing (CN); Shi Shu, Beijing (CN); Qi Yao, Beijing (CN); Guangcai Yuan, Beijing (CN); Haitao Huang, Beijing (CN); Yong Yu, Beijing (CN); Yang Yue, Beijing (CN); and Zhongyuan Sun, Beijing (CN)
Assigned to Beijing BOE Display Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/776,817
Filed by Beijing BOE Display Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Jan. 5, 2021, PCT No. PCT/CN2021/070370
§ 371(c)(1), (2) Date May 13, 2022,
PCT Pub. No. WO2021/139660, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 202010010732.4 (CN), filed on Jan. 6, 2020.
Prior Publication US 2022/0384531 A1, Dec. 1, 2022
Int. Cl. H10K 59/40 (2023.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01); H10K 59/12 (2023.01); H10K 59/122 (2023.01); H10K 71/00 (2023.01)
CPC H10K 59/40 (2023.02) [G06F 3/0412 (2013.01); G06F 3/044 (2013.01); H10K 59/122 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate;
a pixel definition layer, the pixel definition layer being located on a side of the base substrate and comprising: a plurality of pixel openings penetrating through the pixel definition layer;
an isolation layer, the isolation layer being located on a side of the pixel definition layer away from the base substrate, not overlapping with each of the pixel openings, and the isolation layer comprising a first isolation portion and a second isolation portion located on a side of the first isolation portion away from the base substrate and covering the first isolation portion, wherein a slope angle formed by at least one side edge and a bottom edge in a cross section of the second isolation portion is an obtuse angle in a direction perpendicular to the base substrate, and there is a gap between the first isolation portion and the second isolation portion at the obtuse angle;
an isolated layer, the isolated layer being located on a side of the isolation layer away from the pixel definition layer and the isolated layer comprising: a first isolated portion covering the isolation layer, and a second isolated portion and a third isolated portion on both sides of the first isolation portion respectively, wherein a thickness of the first isolation portion is larger than a thickness of the isolated layer.