US 12,223,893 B2
Display substrate and preparation method thereof, and display apparatus
Can Zheng, Beijing (CN); Li Wang, Beijing (CN); Long Han, Beijing (CN); Jianchao Zhu, Beijing (CN); and Libin Liu, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/764,993
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed May 28, 2021, PCT No. PCT/CN2021/096915
§ 371(c)(1), (2) Date Mar. 30, 2022,
PCT Pub. No. WO2022/160535, PCT Pub. Date Aug. 4, 2022.
Claims priority of application No. PCT/CN2021/073957 (WO), filed on Jan. 27, 2021.
Prior Publication US 2023/0200129 A1, Jun. 22, 2023
Int. Cl. G09G 3/32 (2016.01); G09G 3/3233 (2016.01); H10K 59/12 (2023.01); H10K 59/121 (2023.01); H10K 59/131 (2023.01); H10K 59/35 (2023.01); H10K 71/00 (2023.01)
CPC G09G 3/3233 (2013.01) [H10K 59/1201 (2023.02); H10K 59/1213 (2023.02); H10K 59/1216 (2023.02); H10K 59/131 (2023.02); H10K 59/353 (2023.02); H10K 71/00 (2023.02); G09G 2300/0426 (2013.01); G09G 2300/043 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0297 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0242 (2013.01); G09G 2320/0257 (2013.01); G09G 2320/045 (2013.01); G09G 2330/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a substrate and a plurality of sub-pixels, wherein at least one sub-pixel comprises a pixel drive circuit and a light emitting device connected to the pixel drive circuit, the pixel drive circuit comprises a plurality of transistors, at least one transistor comprises an active layer and two gate electrodes; the substrate is provided with a semiconductor layer and a plurality of conductive layers disposed on a side of the semiconductor layer away from the substrate, at least one conductive layer is provided with at least one electrode plate, and there is an overlapping region between an orthographic projection of the electrode plate on the substrate and an orthographic projection of the active layer between the two gate electrodes on the substrate.