US 12,457,852 B2
Display substrate, method for manufacturing thereof and display apparatus
Dali Li, Beijing (CN); Zerui Zhang, Beijing (CN); Yong Hu, Beijing (CN); Zifeng Wang, Beijing (CN); and Hyoungseok Park, Beijing (CN)
Assigned to MIANYANG BOE OPTOELECTRONICS TECHNOLOGY CO., Ltd., Sichuan (CN); and Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Appl. No. 17/756,329
Filed by MIANYANG BOE OPTOELECTRONICS TECHNOLOGY CO., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Mar. 15, 2021, PCT No. PCT/CN2021/080752
§ 371(c)(1), (2) Date May 23, 2022,
PCT Pub. No. WO2022/193058, PCT Pub. Date Sep. 22, 2022.
Prior Publication US 2024/0172528 A1, May 23, 2024
Int. Cl. H10K 59/121 (2023.01); H10K 59/12 (2023.01); H10K 59/40 (2023.01); H10K 59/80 (2023.01); H10K 102/00 (2023.01); H10K 59/65 (2023.01)
CPC H10K 59/121 (2023.02) [H10K 59/1201 (2023.02); H10K 59/40 (2023.02); H10K 59/873 (2023.02); H10K 59/8731 (2023.02); H10K 59/65 (2023.02); H10K 59/80 (2023.02); H10K 59/875 (2023.02); H10K 2102/351 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate, comprising a holing area, a display area around the holing area, and an isolation area between the display area and the holing area, wherein the holing area is configured to install a light extraction component;
one or more circles of blocking wall, in the isolation area and around the holing area;
an encapsulation layer, on one side of a layer where the one or more circles of blocking wall are located away from the base substrate, wherein an orthographic projection of the encapsulation layer on the base substrate completely covers the display area;
a first protection layer, on one side of the encapsulation layer away from the base substrate and at least completely covering the one or more circles of blocking wall;
a filling layer, on one side of the first protection layer away from the base substrate, in the isolation area, completely covering the one or more circles of blocking wall and at least partially overlapping with the encapsulation layer; and
a second protection layer, on one side of the filling layer away from the base substrate, wherein the second protection layer at least completely covers the filling layer, and the second protection layer on the filling layer is gradually inclined to a side of the base substrate in a direction from one side of the second protection layer close to the display area to another side of the second protection layer away from the display area.