US 11,818,922 B2
Display substrate motherboard and preparation method thereof, display substrate and preparation method thereof
Jun Yu, Beijing (CN); Zhong Lu, Beijing (CN); Zhenrui Fan, Beijing (CN); Shuohua Chen, Beijing (CN); Zhaoyang Song, Beijing (CN); Chenlin Yin, Beijing (CN); and Yongjie Tang, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 16/964,423
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Sep. 29, 2019, PCT No. PCT/CN2019/109032
§ 371(c)(1), (2) Date Jul. 23, 2020,
PCT Pub. No. WO2021/056536, PCT Pub. Date Apr. 1, 2021.
Prior Publication US 2022/0376010 A1, Nov. 24, 2022
Int. Cl. H10K 59/124 (2023.01); H10K 71/00 (2023.01); H10K 77/10 (2023.01); H10K 59/12 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/124 (2023.02) [H10K 71/00 (2023.02); H10K 77/111 (2023.02); H10K 59/1201 (2023.02); H10K 2102/311 (2023.02); H10K 2102/351 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A display substrate motherboard, comprising:
a base substrate,
a first flexible organic layer on the base substrate,
a first inorganic layer on the first flexible organic layer,
a second flexible organic layer on the first inorganic layer, and
a pixel driving circuit layer on the second flexible organic layer, the pixel driving circuit layer including a plurality of pixel driving circuit portions respectively used for a plurality of display substrates, and the plurality of pixel driving circuit portions being insulated from each other,
wherein an orthogonal projection of the second flexible organic layer on the base substrate is located inside an orthogonal projection of the first inorganic layer on the base substrate, and an orthogonal projection of each of the pixel driving circuit portions on the base substrate is located inside the orthogonal projection of the second flexible organic layer on the base substrate,
wherein the orthogonal projection of the second flexible organic layer on the base substrate is also located inside an orthogonal projection of the first flexible organic layer on the base substrate.