US 11,957,022 B2
Display panel having intra-substrate filler configuration, method of manufacturing such a display panel, and display device
Dejiang Zhao, Beijing (CN); Wei Huang, Beijing (CN); Yang Li, Beijing (CN); Yu Tian, Beijing (CN); Tianhao Lu, Beijing (CN); and Qian Jin, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Jun. 25, 2021, as Appl. No. 17/304,777.
Claims priority of application No. 202011289210.9 (CN), filed on Nov. 17, 2020.
Prior Publication US 2022/0157891 A1, May 19, 2022
Int. Cl. H10K 59/38 (2023.01); H01L 25/16 (2023.01); H10K 50/858 (2023.01); H10K 50/86 (2023.01); H10K 59/12 (2023.01); H10K 71/00 (2023.01)
CPC H10K 59/38 (2023.02) [H01L 25/167 (2013.01); H10K 50/858 (2023.02); H10K 50/865 (2023.02); H10K 71/00 (2023.02); H10K 59/12 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a first base substrate;
a plurality of light sources on the first base substrate;
a second base substrate opposite to the first base substrate;
a light conversion structure on the second base substrate, wherein the light conversion structure comprises at least a plurality of quantum dot structures;
a plurality of extinction structures on a side of the light conversion structure facing the first base substrate, wherein a first channel is formed between any two adjacent extinction structures;
a plurality of first optical structures on the side of the light conversion structure facing the first base substrate, wherein each of the plurality of first optical structures is located in the first channel between two adjacent extinction structures; and
a filler portion between the first base substrate and the second base substrate, wherein the filler portion is located between the plurality of light sources and the plurality of first optical structures,
wherein the filler portion contains a material with a refractive index greater than that of a material of the first optical structure, and the extinction structure contains a light-absorbing material; and
wherein orthographic projections of the plurality of light sources on the first base substrate at least partially overlap orthographic projections of the plurality of first optical structures on the first base substrate, an orthographic projection of the light conversion structure on the first base substrate at least partially overlaps the orthographic projections of the plurality of first optical structures on the first base substrate, and the orthographic projections of the plurality of first optical structures on the first base substrate fall within an orthographic projection of the filler portion on the first base substrate.