High resolution LC video projector

Author

Ymauchi, Kenji ; Kanayama, Hideyuki ; Miwa, Takasi ; Takeuchi, Kazuhiko ; Nakatani, Norio ; Marusita, Yasushi

Author_Institution

Sanyo Electric Co. Ltd., Osaka, Japan

Volume

36

Issue

3

fYear

1990

fDate

8/1/1990 12:00:00 AM

Firstpage

430

Lastpage

436

Abstract

An LC (liquid crystal) front-projector that uses three 3.1-inch a-Si TFT LC panels with 110920 pixels (236×470), to realize high-resolution, a high-density LC light valve with 345600 pixels has been developed. This projector accommodates EDTV and personal computer displays, and provides excellent color reproduction. It is capable of projecting high-quality video and data images onto 30 to 100 inch screens. The authors report on the developments which make this system possible, namely the lamp and optical system for the light source, the high-density LC panel, the optical system of dichroic mirrors used for color separation, and the combination and projection lens

Keywords

elemental semiconductors; high definition television; lenses; liquid crystal displays; mirrors; optical projectors; silicon; thin film transistors; video equipment; 110920 pixels; 236 pixels; 3.1 inch; 30 to 100 inch; 345600 pixels; 470 pixels; EDTV; Si; TFT liquid crystal panels; amorphous Si; color separation; dichroic mirrors; light source; optical system; personal computer displays; projection lens; video front-projector; Computer displays; HDTV; Lamps; Lenses; Light sources; Liquid crystal displays; Microcomputers; Mirrors; Thin film transistors; Valves;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.103156

Filename

103156