LCD backlighting method and apparatus using a xenon flash tube i

Details LCD backlighting method and apparatus using a xenon flash tube i LCD backlighting method and apparatus using a xenon flash tube i

1995-06-05

1997-10-07

Lazarus, Ira S.

Illumination

Light source and modifier

Ionized gas or vapor light source

362255, 362330, 349 64, G02F 11335

Patent

active

056739990

ABSTRACT:
An liquid-crystal display panel is illuminated by one or more xenon flash tubes as a backlighting source. The LCD backlight includes a back reflector, a reflecting cavity, and a light diffuser. The LCD panel is illuminated by triggering a flash of light from the xenon flash tube at a given frequency, reflecting the flash of light off of a back reflector, and diffusing the flash of light through a light diffuser. Flash lamp drive circuitry controls the triggering of a flash of light from a xenon flash lamp.

REFERENCES:
patent: 4842378 (1989-06-01), Flasck et al.
patent: 4845596 (1989-07-01), Mouissie
patent: 5099343 (1992-03-01), Margerum et al.
patent: 5136480 (1992-08-01), Pristash et al.
patent: 5187765 (1993-02-01), Muehlemann et al.

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