US 12,274,124 B2
Display assembly and virtual reality display device
Can Wang, Beijing (CN); Can Zhang, Beijing (CN); Han Yue, Beijing (CN); Ming Yang, Beijing (CN); Ning Cong, Beijing (CN); Jiao Zhao, Beijing (CN); and Minghua Xuan, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 16/973,005
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Mar. 18, 2020, PCT No. PCT/CN2020/079844
§ 371(c)(1), (2) Date Dec. 7, 2020,
PCT Pub. No. WO2020/192509, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 201910243939.3 (CN), filed on Mar. 28, 2019.
Prior Publication US 2021/0249634 A1, Aug. 12, 2021
Int. Cl. H01L 51/52 (2006.01); H10K 50/844 (2023.01); H10K 50/858 (2023.01); H10K 59/38 (2023.01)
CPC H10K 50/858 (2023.02) [H10K 50/844 (2023.02); H10K 59/38 (2023.02)] 6 Claims
OG exemplary drawing
 
1. A virtual reality display device, comprising an optical waveguide assembly and a display assembly, wherein the display assembly comprises an electroluminescent element, a packaging layer and a light converging layer arranged sequentially, wherein the light converging layer is configured to converge light emitted by the electroluminescent element and transmitted through the packaging layer, the electroluminescent element comprises a plurality of pixels, the light converging layer is tightly attached to the packaging layer, and an orthogonal projection of each pixel onto a surface of the packaging layer to which the light converging layer is tightly attached is completely covered by the light converging layer;
the light converging layer comprises a plurality of lenses in one-to one correspondence with the pixels, and wherein a first protection layer, a color filter substrate and a second protection layer are sequentially arranged on the packaging layer in a direction from the electroluminescent element to the light converging layer, wherein the display assembly further comprises a third protection layer, and the plurality of lenses is arranged between the third protection layer and the second protection layer; the first protection layer is a thin film packaging layer, and a thickness of the first protection layer is greater than a thickness of the second protection layer in a direction from the lens to the corresponding pixel; wherein light emitted by the display assembly enters the optical waveguide assembly.