LCD backlighting method and apparatus using a xenon flash tube including drive circuit
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United States of America Patent
Stats
-
Oct 7, 1997
Grant Date -
N/A
app pub date -
Jun 5, 1995
filing date -
Dec 12, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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