Patent ID: 11927878
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  B  H | IPC B  G  H

Claim 0:
1. A projection screen, comprising a first transparent cover plate, a transparent touch panel, and a first nanoparticle layer, wherein the first nanoparticle layer and the first transparent cover plate are sequentially laminated on one side of the transparent touch panel, and the first nanoparticle layer comprises a plurality of dispersed nanoparticles of different particle sizes; and
further comprising a second transparent cover plate and a second nanoparticle layer, wherein the second nanoparticle layer and the second transparent cover plate are sequentially laminated on the other side of the transparent touch panel, and the second nanoparticle layer comprises a plurality of dispersed nanoparticles of different particle sizes.