公开(公告)号：US20230305201A1

公开(公告)日：2023-09-28

申请号：US18121990

申请日：2023-03-15

Applicant: Sharp Display Technology Corporation

Inventor： Yutaka SAWAYAMA ,  Yoshimasa CHIKAMA ,  Masamitsu YAMANAKA ,  Hideki KITAGAWA

IPC: G02B5/10 ,  G02F1/1335 ,  G03F7/00

CPC classification number: G02B5/10 ,  G02F1/133553 ,  G03F7/0005 ,  G02F2203/02 ,  G02B5/0808

Abstract: A reflection plate includes a substrate, an insulation film disposed on the substrate and including projection portions and recesses on an uneven surface, and a reflection film disposed on the uneven surface and having a surface that conforms to the uneven surface and reflecting light. The projection portions are arranged at intervals and are inclined with respect to a normal direction of a surface of the substrate. The recesses are between the projection portions that are adjacent to each other. The projection portions include a first projection portion, a second projection portion, and a third projection portion that are inclined in different directions.