公开(公告)号：US20170212297A1

公开(公告)日：2017-07-27

申请号：US15403195

申请日：2017-01-11

Applicant: Young Lighting Technology Inc.

Inventor： Ming-Dah Liu ,  Chao-Hung Weng

IPC: F21V8/00 ,  G02B5/02

CPC classification number: G02B6/0053 ,  G02B5/0231 ,  G02B6/0038

Abstract: A light source module, a display apparatus and a light turning film are provided. The light turning film includes a light incident surface and a light emitting surface. The light incident surface includes a plurality of first optical microstructures and a plurality of second optical microstructures, and is adapted to guide a light beam to enter the light turning film through the light incident surface. The light emitting surface is disposed opposite to the light incident surface, and is adapted to guide the light beam to leave the light turning film through the light emitting surface. The first optical microstructures and the second optical microstructures protrude outward from the light turning film with reference of a reference plane. Each of the first optical microstructures and each of the second optical microstructures are complied with predetermined conditions.

公开(公告)号：US20180003886A1

公开(公告)日：2018-01-04

申请号：US15493160

申请日：2017-04-21

Applicant: Young Lighting Technology Inc.

Inventor： Ming-Dah Liu ,  Ming-Ta Ke ,  Chao-Hung Weng

IPC: F21V8/00 ,  G02B5/09

Abstract: A light source module and a LGP are provided, the light source module includes the LGP, a light source and an optical film. The LGP includes a bottom surface, a light-emitting surface, a light incident surface and a reflection surface. A projection of the reflection surface on the light-emitting surface has an arc shape. The optical film is disposed on the light-emitting surface, and includes a plurality of prism columns in arrangement. The bottom surface has a plurality of microstructures, and each microstructure has a first surface and a second surface. The first surface is closer to the light incident surface compared to the second surface, and an included angle between the first surface and the bottom surface ranges between 1 and 10 degrees. The light source module of the invention effectively narrows horizontal and vertical viewing angles, and light and slim tendency of the light source module is satisfied.