Invention Grant
- Patent Title: Projection screen
-
Application No.: US15894316Application Date: 2018-02-12
-
Publication No.: US10310367B2Publication Date: 2019-06-04
- Inventor: Kentaro Kusama , Baku Katagiri
- Applicant: LINTEC Corporation
- Applicant Address: JP Tokyo
- Assignee: LINTEC CORPORATION
- Current Assignee: LINTEC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Renner Kenner
- Agent Arthur M. Reginelli
- Priority: JP2017-071366 20170331
- Main IPC: G02B5/02
- IPC: G02B5/02 ; G03B21/62

Abstract:
Provided is a projection screen which can effectively diffuse incident light coming from a wide angle, despite that the number of laminated sheets of a light diffusion control film is small such as 3 to 4 sheets, and can thereby provide a wide viewing angle even if the projection screen is applied to a large-sized screen. Disclosed is a projection screen having a light diffusion control plate, the light diffusion control plate being formed by laminating a plurality of sheets of a light diffusion control film, the light diffusion control film being a light diffusion control film having a single light diffusion layer having a first internal structure and a second internal structure sequentially from the lower part along the film thickness direction, in which the first internal structure is a predetermined louver structure, and the second internal structure is a predetermined columnar structure.
Public/Granted literature
- US20180284591A1 PROJECTION SCREEN Public/Granted day:2018-10-04
Information query