US 12,295,214 B2
Display panel including light modulation structure and display device including the display panel
Peng Shen, Wuhan (CN); Junqiang Wang, Wuhan (CN); and Jiaxian Liu, Wuhan (CN)
Assigned to HUBEI YANGTZE INDUSTRIAL INNOVATION CENTER OF ADVANCED DISPLAY CO., LTD., Wuhan (CN)
Filed by Hubei Yangtze Industrial Innovation Center Of Advanced Display Co., Ltd., Wuhan (CN)
Filed on Apr. 13, 2022, as Appl. No. 17/719,409.
Claims priority of application No. 202111676224.0 (CN), filed on Dec. 31, 2021.
Prior Publication US 2023/0217716 A1, Jul. 6, 2023
Int. Cl. H10K 59/122 (2023.01); H10K 50/858 (2023.01); H10K 50/86 (2023.01); H10K 59/38 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/858 (2023.02); H10K 50/865 (2023.02); H10K 59/38 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a substrate;
a pixel definition layer and light-emitting units, wherein the pixel definition layer is located on one side of the substrate, the pixel definition layer comprises a plurality of pixel openings, and the pixel openings are arranged corresponding to the light-emitting units;
a light modulation structure comprising a light extraction layer and a cover layer, wherein the light extraction layer is located on a side of the cover layer close to the pixel definition layer, the light modulation structure comprises a plurality of light extraction units, a light extraction unit of the plurality of light extraction units comprises a first sub-unit and a second sub-unit, wherein the light extraction layer comprises a light extraction opening and the first sub-unit, first sub-units enclose the light extraction opening, the light extraction opening overlaps with the pixel openings, the second sub-unit is located in the cover layer, and a refractive index of the first sub-unit is smaller than a refractive index of the second sub-unit.