Display device using transparent type LCD

Details Display device using transparent type LCD Display device using transparent type LCD

1997-10-24

2000-09-12

Shalwala, Bipin

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 7, 349 62, 349 65, G09G 318

Patent

active

061184209

ABSTRACT:
A display device comprises a transparent type LCD including a pair of transparent plates facing each other, spaced with a predetermined gap and a polymer dispersed liquid crystal disposed between the transparent plates, which can be switched between a transparent state and a diffraction state pixel by pixel to display images or characters; a signal generator for giving display signals to the transparent type LCD; and a light system including a light source emitting light rays that enter the transparent plates from their edge faces, and a stop plate disposed between the edge faces of the transparent plates and the light source. This stop plate has an opening that extends along the longitudinal direction of the edge face of the transparent plate, and the width of the opening in the cross direction changes cyclically along the longitudinal direction.

REFERENCES:
patent: 5099343 (1992-03-01), Margerum et al.

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