US 12,289,956 B2
Display panel including a light emitting device layer and a viewing angle adjustment film and manufacturing method thereof
Zhiyuan Yin, Guangdong (CN); Lixuan Chen, Guangdong (CN); and Xiaosa Gao, Guangdong (CN)
Assigned to SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Guangdong (CN)
Appl. No. 17/764,553
Filed by Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong (CN)
PCT Filed Mar. 2, 2022, PCT No. PCT/CN2022/078761
§ 371(c)(1), (2) Date Mar. 29, 2022,
PCT Pub. No. WO2023/159659, PCT Pub. Date Aug. 31, 2023.
Claims priority of application No. 202210160869.7 (CN), filed on Feb. 22, 2022.
Prior Publication US 2023/0269967 A1, Aug. 24, 2023
Int. Cl. H10K 50/86 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/80 (2023.01); H10K 50/84 (2023.01); H10K 50/858 (2023.01); H10K 71/00 (2023.01)
CPC H10K 50/865 (2023.02) [H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/84 (2023.02); H10K 50/858 (2023.02); H10K 50/868 (2023.02); H10K 71/00 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a substrate;
a light emitting device layer disposed on the substrate, wherein the light emitting device layer comprises a first viewing angle curve, the first viewing angle curve comprises a light emission efficiency maximum value point, a film thickness of the light emitting device layer is a film thickness corresponding to the light emission efficiency maximum value point, the light emission efficiency maximum value point is at a side viewing angle;
a viewing angle adjustment film disposed on a side of the light emitting device layer away from the substrate; and
an anti-reflection layer disposed on a side of the viewing angle adjustment film away from the substrate;
wherein the viewing angle adjustment film is configured to adjust the light emission efficiency maximum value point from the side viewing angle to a main viewing angle to obtain a second viewing angle curve, and a normal direction of the side viewing angle is inclined to a normal direction of the main viewing angle.