US 11,991,915 B2
Display panel and display device
Haoran Wang, Wuhan (CN); and Kan Wang, Wuhan (CN)
Assigned to WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Wuhan (CN)
Appl. No. 17/298,019
Filed by WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Wuhan (CN)
PCT Filed Mar. 31, 2021, PCT No. PCT/CN2021/084654
§ 371(c)(1), (2) Date May 27, 2021,
PCT Pub. No. WO2022/198710, PCT Pub. Date Sep. 29, 2022.
Claims priority of application No. 202110315219.0 (CN), filed on Mar. 24, 2021.
Prior Publication US 2023/0284511 A1, Sep. 7, 2023
Int. Cl. H10K 59/80 (2023.01); H10K 59/131 (2023.01)
CPC H10K 59/879 (2023.02) [H10K 59/131 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a light-emitting layer comprising a plurality of light-emitting units; and
a light-concentrating layer positioned on the light-emitting layer and comprising a first member and a second member, wherein the first member comprises a plurality of openings, an orthographic projection of at least a partial region of one of the openings on the light-emitting layer coincides with the light-emitting units, and the second member is filled in the openings;
at least a partial edge of one of the openings comprises a first inclined surface, a second inclined surface positioned on the first inclined surface, and a first connecting portion connecting the first inclined surface and the second inclined surface, wherein an orthographic projection of at least part of the second inclined surface on a plane of a position of the light-emitting layer coincides with an orthographic projection of at least part of the first inclined surface on the plane of the position of the light-emitting layer; and
wherein an optical refractive index of the second member is greater than an optical refractive index of the first member; both the first inclined surface and the second inclined surface are annular inclined surfaces surrounding the edge of the opening, in a reference plane parallel to the plane of the position of the light-emitting layer, a first included angle is between the first inclined surface and the reference plane, and a second included angle is between the second inclined surface and the reference plane, and wherein the first included angle and the second included angle are both acute angles.