Front illumination device and reflection-type liquid crystal dis

Details Front illumination device and reflection-type liquid crystal dis Front illumination device and reflection-type liquid crystal dis

1998-03-23

2000-04-11

Cariaso, Alan

Illumination

Revolving

362327, 362331, 349 63, 349 65, F21V 800

Patent

active

060480718

ABSTRACT:
A front-light, to be used by mounting on the front of a reflection-type LCD, etc., is provided with a light-conducting body having a light-entry surface, through which light enters from a light source, and a light exit surface, through which light is projected toward a liquid crystal cell; the light-entry surface being provided so as to incline with respect to the normal direction of the light exit surface.

REFERENCES:
patent: 2761056 (1956-08-01), Lazo
patent: 3500034 (1970-03-01), Bissell
patent: 4124279 (1978-11-01), Byles
patent: 4212048 (1980-07-01), Castleberry
patent: 5485354 (1996-01-01), Ciupke et al.
patent: 5581380 (1996-12-01), Bergman
patent: 5608550 (1997-03-01), Epstein et al.
patent: 5772305 (1998-06-01), Ishikawa et al.
"A Transparent Front Lighting System for Relective-Type Displays" C.Y. Tai et al., Society for Information Display International Symposium Digest of Technical Papers vol. XXVI, Walt Disney World Dolphin Hotel, Orlando, Florida, May 23-25, 1995 pp. 375-378.

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