Color sequential illumination system

Details Color sequential illumination system Color sequential illumination system

1991-10-10

1993-11-09

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313487, 313504, 313493, 313501, 359 48, 359 50, 362260, H01J 6142

Patent

active

052606252

ABSTRACT:
A color sequential illumination system, such as, for example, a backlighting system for a liquid crystal display (LCD), comprises lamps for emitting blue, red and green light. The red and green light is provided by lamps including fluorescent dyes having optical decay times similar to a phosphor material used to provide the blue light. In this manner, the blue, red and green emissions can be fully synchronized with electrical signals used to energise the lamps, enhancing color range and color quality. Furthermore, if the fluorescent dyes are carried in plastics materials, then trapping and concentration of the light generated may also be achieved, providing enhanced brightness for the LCD for a given power input.

REFERENCES:
patent: 4001628 (1977-01-01), Ryan
patent: 4099090 (1978-07-01), Corth et al.
patent: 4469980 (1984-09-01), Johnson
patent: 4870484 (1989-09-01), Sonehara
patent: 5143438 (1992-09-01), Giddens et al.

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