US 12,219,794 B2
Display substrate with hole-forming areas, manufacturing method thereof, and display device including the display substrate
Li Jia, Beijing (CN); and Tao Gao, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/425,114
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Jan. 4, 2021, PCT No. PCT/CN2021/070132
§ 371(c)(1), (2) Date Jul. 22, 2021,
PCT Pub. No. WO2021/143558, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 202010051525.3 (CN), filed on Jan. 17, 2020.
Prior Publication US 2022/0344612 A1, Oct. 27, 2022
Int. Cl. H10K 50/842 (2023.01); H10K 59/12 (2023.01); H10K 59/131 (2023.01); H10K 71/00 (2023.01); H10K 77/10 (2023.01)
CPC H10K 50/8428 (2023.02) [H10K 59/131 (2023.02); H10K 71/00 (2023.02); H10K 77/111 (2023.02); H10K 59/1201 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A display substrate, comprising: a base film layer, a functional film layer, and a partial display region; wherein the partial display region includes a plurality of hole-forming areas, an island area for displaying and a bridge area for signal transmission, the island area and the bridge area are divided by the plurality of hole-forming areas; the plurality of hole-forming areas are arranged around the island area, a part of the bridge area is located between the island area and the plurality of hole-forming areas and the other part of the bridge area is located between the plurality of hole-forming areas; the display substrate further includes a separation structure located in the bridge area;
wherein the separation structure is located on the base film layer and separates a target functional film layer to form a first part and a second part, and the target function film layer includes any functional film layer formed at a side of the separation structure away from the base film layer, the first part includes a part of the target functional film layer that is located at a side of the separation structure away from the plurality of hole-forming areas, and the second part includes a part of the target functional film layer that is located at a side of the separation structure near the plurality of hole-forming areas;
wherein each hole-forming area has a shape of “H”, and includes a first opening portion and two second opening portions at two sides of the first opening portion and communicating with the first opening portion;
in the plurality of hole-forming areas surrounding the same island area, the first hole forming portions in two adjacent hole-forming areas are perpendicular to each other.