US 12,238,990 B2
Display substrate and method for manufacturing the same, and display device
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. 17/629,135
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Apr. 23, 2021, PCT No. PCT/CN2021/089166
§ 371(c)(1), (2) Date Jan. 21, 2022,
PCT Pub. No. WO2021/227824, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 202010414800.3 (CN), filed on May 15, 2020.
Prior Publication US 2022/0293711 A1, Sep. 15, 2022
Int. Cl. H10K 59/131 (2023.01); H10K 59/12 (2023.01); H10K 59/122 (2023.01); H10K 59/123 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/131 (2023.02) [H10K 59/122 (2023.02); H10K 59/123 (2023.02); H10K 77/111 (2023.02); H10K 59/1201 (2023.02); H10K 2102/311 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate comprising a display region and a bonding region located on a side of the display region, with the display region comprising a main display region and a stress relief region, and the stress relief region comprising a plurality of via regions, and a bridge region among the via regions;
a planarization layer disposed on the base substrate and located in the display region and the bridge region;
an isolation structure and connection pads disposed on the base substrate, with the isolation structure located in the bridge region and surrounding the via regions, and the connection pads located in the bonding region; and
first protective parts which are disposed on a side of the connection pads away from the base substrate and cover the connection pads,
wherein the isolation structure comprises a first groove formed in the planarization layer, and a first isolation sub-layer and a second isolation sub-layer disposed on a side of the planarization layer away from the base substrate, a first space is provided between the first isolation sub-layer and the second isolation sub-layer, and an orthographic projection of the first space on the base substrate is located within an orthographic projection of the first groove on the base substrate, and
the first protective parts, the first isolation sub-layer and the second isolation sub-layer are disposed in a same layer and are made of a same material.