公开(公告)号：US20250060525A1

公开(公告)日：2025-02-20

申请号：US18544094

申请日：2023-12-18

Applicant: Optivision Technology Inc.

Inventor： Chung-Wei WANG ,  Li-Jen HSU ,  Hao-Ying HSU

IPC: F21V8/00

Abstract: An optical composite structure includes first, second and third prism sheets. The first prism sheet has a first light incident surface and a first light exit surface opposite to each other. The second prism sheet has a second light incident surface facing the first light exit surface and a second light exit surface opposite to the second light incident surface, and includes a haze layer having the second light incident surface and a prism layer which is stacked on the haze layer and which has the second light exit surface. The third prism sheet has a third light incident surface facing the second light exit surface, and includes a haze layer and a prism layer stacked on the haze layer of the third prism sheet. The haze layer of the third prism sheet has a haze greater than a haze of the haze layer of the second prism sheet.

公开(公告)号：US20210325597A1

公开(公告)日：2021-10-21

申请号：US16943747

申请日：2020-07-30

Applicant: Optivision Technology Inc.

Inventor： Chung-Wei WANG ,  Li-Jen HSU

IPC: F21V8/00 ,  G02B5/00

Abstract: A backlight module includes a light guide plate, a light source, a prism sheet, and a reflective film. The light source is disposed on a light-incident surface of the light guide plate. The prism sheet is disposed on a light exit surface of the light guide plate, and includes a plurality of first prism structures that protrude toward the light exit surface of the light guide plate. The reflective film is disposed on a reflection surface of the light guide plate, and includes a film body, a plurality of second prism structures that are disposed on the film body and that protrude from the film body toward the reflection surface, and a light absorbing layer that is disposed on the film body opposite to the second prism structures.