Title :
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
fDate :
8/1/1990 12:00:00 AM
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;
Journal_Title :
Consumer Electronics, IEEE Transactions on
