US 12,336,419 B2
Display device
Zhuofan Chen, Hubei (CN)
Assigned to WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Hubei (CN)
Appl. No. 17/754,243
Filed by WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Hubei (CN)
PCT Filed Mar. 9, 2022, PCT No. PCT/CN2022/079997
§ 371(c)(1), (2) Date Mar. 28, 2022,
PCT Pub. No. WO2023/164960, PCT Pub. Date Sep. 7, 2023.
Claims priority of application No. 202210193616.X (CN), filed on Mar. 1, 2022.
Prior Publication US 2024/0057456 A1, Feb. 15, 2024
Int. Cl. H10K 59/80 (2023.01); H10K 50/858 (2023.01); H10K 59/35 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/879 (2023.02) [H10K 50/858 (2023.02); H10K 59/35 (2023.02); H10K 59/353 (2023.02); H10K 77/111 (2023.02); H10K 2102/351 (2023.02); Y02E 10/549 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A display device, having a planar display area and a non-planar display area and comprising:
a substrate;
a light-emitting layer disposed on one side of the substrate and comprising a plurality of sub-pixels arranged spaced apart from each other;
a first optical film layer disposed on one side of the light-emitting layer away from the substrate, wherein the first optical film layer is provided with at least one first opening corresponding to a position of the sub-pixels in the planar display area, and the first optical film layer is provided with at least one second opening corresponding to a position of the sub-pixels in the non-planar display area; and
a second optical film layer covering one side of the first optical film layer away from the substrate and filled in the first opening and the second opening, wherein a refractive index of the first optical film layer is less than a refractive index of the second optical film layer;
wherein in per unit area, a light-concentrating intensity of light emitted from the sub-pixels in the non-planar display area and passing through the first optical film layer and the second optical film layer at a front viewing angle is less than a light-concentrating intensity of light emitted from the sub-pixels in the planar display area and passing through the first optical film layer and the second optical film layer at the front viewing angle;
wherein in a cross-section perpendicular to the substrate, an included angle between all tangent lines of side walls of the second opening and the substrate are less than an included angle between a tangent line of a side wall of the first opening and the substrate.