Invention Grant
- Patent Title: Front projection type screen
- Patent Title (中): 前投影式屏幕
-
Application No.: US10073053Application Date: 2002-02-12
-
Publication No.: US06844969B2Publication Date: 2005-01-18
- Inventor: Kun-ho Cho , Seung-tae Jung , Dae-sik Kim , Cheol-sung Yeon
- Applicant: Kun-ho Cho , Seung-tae Jung , Dae-sik Kim , Cheol-sung Yeon
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Staas & Halsey LLP
- Priority: KR2001-11732 20010307
- Main IPC: G03B21/56
- IPC: G03B21/56 ; G03B21/60

Abstract:
A front projection type screen includes a transparent base; a diffusion member formed on one surface of the transparent base; and a retroreflection prism array formed on another surface of the transparent base. Thus, a wide angle of visibility can be secured in a horizontal direction while an angle of visibility in a vertical direction is limited to a narrow scope. Also, a wide viewing angle can be achieved and high efficiency and brightness of light may be obtained.
Public/Granted literature
- US20020126378A1 Front projection type screen Public/Granted day:2002-09-12
Information query