US 12,133,411 B2
Display panel and display apparatus
Wei Li, Beijing (CN); Shi Shu, Beijing (CN); Wei Huang, Beijing (CN); Dini Xie, Beijing (CN); and Guangcai Yuan, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/606,506
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Nov. 6, 2020, PCT No. PCT/CN2020/127269
§ 371(c)(1), (2) Date Oct. 26, 2021,
PCT Pub. No. WO2022/094973, PCT Pub. Date May 12, 2022.
Prior Publication US 2022/0352487 A1, Nov. 3, 2022
Int. Cl. H10K 50/844 (2023.01); H10K 50/818 (2023.01); H10K 50/858 (2023.01); H10K 59/122 (2023.01); H10K 59/38 (2023.01); H10K 59/80 (2023.01)
CPC H10K 50/844 (2023.02) [H10K 50/818 (2023.02); H10K 50/858 (2023.02); H10K 59/122 (2023.02); H10K 59/38 (2023.02); H10K 59/873 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a light-emitting substrate;
an opposite substrate; and
an intermediate layer assembly between the light-emitting substrate and the opposite substrate, wherein the light-emitting substrate has a light-emitting surface configured to allow light to be emitted from, and the intermediate layer assembly is configured to direct the light emitted from the light-emitting surface to the opposite substrate;
the intermediate layer assembly includes a thin film encapsulation layer, a filler layer, and an overcoat that are sequentially stacked in a pointing direction pointing from the light-emitting substrate to the opposite substrate;
the thin film encapsulation layer includes at least two encapsulation sub-layers that are stacked in the pointing direction;
in the pointing direction, refractive indexes of the encapsulation sub-layers gradually increase, and thicknesses of the encapsulation sub-layers gradually increase;
a refractive index of the overcoat is higher than a refractive index of the filler layer.