US 11,778,863 B2
Display substrate, method for manufacturing display substrate, and display device
Yuanyou Qiu, Beijing (CN); Yao Huang, Beijing (CN); Cong Liu, Beijing (CN); and Binyan Wang, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/626,770
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Apr. 13, 2021, PCT No. PCT/CN2021/086859
§ 371(c)(1), (2) Date Jan. 12, 2022,
PCT Pub. No. WO2021/218625, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 202010354537.3 (CN), filed on Apr. 29, 2020.
Prior Publication US 2022/0293708 A1, Sep. 15, 2022
Int. Cl. H01L 27/32 (2006.01); H10K 59/121 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/1216 (2023.02) [H10K 59/1201 (2023.02)] 13 Claims
OG exemplary drawing
 
1. A display substrate, comprising a base substrate, a driving circuit layer and a light-emitting unit, wherein the driving circuit layer and the light-emitting unit are located on the base substrate, the light-emitting unit comprises a first electrode and a second electrode that are laminated on each other, and a light-emitting layer located between the first electrode and the second electrode; the display substrate comprises a first display region, a second display region, and an opening region; the second display region is located between the first display region and the opening region; and a pixel density of the first display region is greater than a pixel density of the second display region; and
the display substrate further comprises a compensation capacitor configured for compensating a sub-pixel in the second display region, wherein the compensation capacitor comprises a first plate and a second plate, the first plate is electrically connected to a gate electrode of the sub-pixel in the second display region, and the second plate is electrically connected to the first electrode;
the driving circuit layer comprises a gate layer;
wherein in a direction away from the base substrate, the gate layer of the driving circuit layer comprises a first gate metal layer and a second gate metal layer, one plate of the first plate and the second plate of the compensation capacitor is provided in a same layer and made of a same material as the first gate metal layer, and the other plate of the compensation capacitor is provided in a same layer and made of a same material as the second gate metal layer.