US 12,035,570 B2
Display substrate, display panel, manufacturing method thereof and display device
Xiang Li, Beijing (CN); Wei He, Beijing (CN); Haowei Zou, Beijing (CN); Shi Shu, Beijing (CN); Chuanxiang Xu, Beijing (CN); Yong Yu, Beijing (CN); Yang Yue, Beijing (CN); Haitao Huang, Beijing (CN); and Qi Yao, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/417,299
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Sep. 24, 2020, PCT No. PCT/CN2020/117497
§ 371(c)(1), (2) Date Jun. 22, 2021,
PCT Pub. No. WO2022/061662, PCT Pub. Date Mar. 31, 2022.
Prior Publication US 2022/0328578 A1, Oct. 13, 2022
Int. Cl. H10K 59/122 (2023.01); H10K 59/12 (2023.01); H10K 59/124 (2023.01); H10K 59/38 (2023.01); H10K 71/00 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 59/124 (2023.02); H10K 59/38 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A display panel comprising a display substrate and a color conversion layer on a light emergent side of the display substrate,
wherein the display substrate comprises:
a first substrate;
a pixel defining layer on the first substrate, the pixel defining layer having a plurality of pixel openings; and
a plurality of light emitting devices in one-to-one correspondence with the plurality of pixel openings and configured to emit light of a preset color, wherein the light emitting device comprises a first electrode and a light emitting function layer, the first electrode is between the pixel defining layer and the first substrate, and comprises a main body portion exposed by the pixel opening; the light emitting function layer is in the pixel opening and on a side of the main body portion away from the first substrate, at least a part of the light emitting function layer directly faces the main body portion, and the part of the light emitting function layer directly facing the main body portion is a curved film layer protruding towards the first substrate,
wherein the color conversion layer comprises a plurality of repeating units, each repeating unit comprises a plurality of light emitting portions, each light emitting device corresponds to one light emitting portion, and the light emitting portion is configured to receive light emitted by a corresponding light emitting device and emit light with a same color as or a different color from the preset color,
wherein the color conversion layer is provided therein with scattering particles.