Wide dimming range backlight for liquid crystal devices
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United States of America Patent
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-
Aug 15, 1995
Grant Date -
N/A
app pub date -
May 18, 1994
filing date -
May 18, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A backlight system for liquid crystal device display is equipped with a dual lighting system for day viewing and night viewing. The day lighting system uses conventional fluorescent or incandescent lamps for full color display during daytime use. The night lighting system uses a lower intensity light source. The day lighting system is disabled while the night system is in use. The dual lighting system provides an extended dimming range compared to what would otherwise be available.
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Cited Art Landscape
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