公开(公告)号：US20200159072A1

公开(公告)日：2020-05-21

申请号：US16686784

申请日：2019-11-18

Applicant: LMS Co., Ltd.

Inventor： Taejun LEE ,  Kiwook YI

IPC: G02F1/1335

Abstract: The present invention discloses a diffusion sheet. The diffusion sheet comprises a first base film, a second base film, and a shielding layer placed between the first base film and the second base film. In this case, the shielding layer includes an air gap and a pattern.

公开(公告)号：US20220057547A1

公开(公告)日：2022-02-24

申请号：US17094332

申请日：2020-11-10

Applicant: LMS Co., Ltd.

Inventor： Jinhwan KIM ,  Taejun LEE ,  Hyeryong KIM ,  Jihoon LEE ,  Seongyong YOON ,  Jitae KIM

IPC: G02B5/02 ,  F21V5/00 ,  G02B1/04 ,  G02F1/13357

Abstract: An optical film is disclosed. The optical film may include a first base film, and a diffusion lens layer disposed on one surface of the first base film and including a plurality of square pyramid-shaped lenses. Edges meeting at vertices of the plurality of square pyramid-shaped lenses may be curved lines. Among the plurality of square pyramid-shaped lenses, one surface of a first square pyramid-shaped lens may meet one surface of a second square pyramid-shaped lens to form a boundary line, and the one surface of the first square pyramid-shaped lens and the one surface of the second square pyramid-shaped lens may be symmetrical with respect to the boundary line as an axis.