US 12,490,622 B2
Display panel and manufacturing method therefor, and display device and driving method therefor
Li Chen, Beijing (CN); Dongyu Gao, Beijing (CN); Zhenye Wei, Beijing (CN); Xiongyi Luo, Beijing (CN); Guangchao Liu, Beijing (CN); and Jinglu Bai, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Appl. No. 18/697,951
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan Province (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Sep. 30, 2022, PCT No. PCT/CN2022/123090
§ 371(c)(1), (2) Date Apr. 2, 2024,
PCT Pub. No. WO2024/065615, PCT Pub. Date Apr. 4, 2024.
Prior Publication US 2025/0241163 A1, Jul. 24, 2025
Int. Cl. G09G 3/3225 (2016.01); H10K 59/12 (2023.01); H10K 59/122 (2023.01); H10K 59/38 (2023.01); H10K 59/80 (2023.01)
CPC H10K 59/38 (2023.02) [G09G 3/3225 (2013.01); H10K 59/1201 (2023.02); H10K 59/122 (2023.02); H10K 59/873 (2023.02); H10K 59/878 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a first base substrate comprising a plurality of sub-pixel areas;
a plurality of first light-emitting devices on a side of the first base substrate and corresponding to the sub-pixel areas one by one;
a first dam layer on a side of the first light-emitting devices away from the first base substrate and comprising first opening areas corresponding to the sub-pixel areas one by one;
a plurality of first photoluminescent layers on the side of the first light-emitting devices away from the first base substrate and in at least part of the first opening areas;
a plurality of second light-emitting devices on a side of the first dam layer away from the first light-emitting devices, wherein orthographic projections of the second light-emitting devices on the first base substrate do not overlap with the sub-pixel areas;
a second dam layer on a side of the second light-emitting devices away from the first base substrate and comprising second opening areas corresponding to the sub-pixel areas one by one; and
a plurality of second photoluminescent layers on the side of the second light-emitting devices away from the first base substrate and in at least part of the second opening areas.