Projection display device
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United States of America Patent
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Mar 22, 2005
Grant Date -
Jan 29, 2004
app pub date -
Jun 6, 2003
filing date -
Jun 7, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A projection display device comprises a plurality of light sources which produce different primary colors of light, a plurality of display units each of which is driven by a video signal corresponding to one of the primary colors, receives light from one of the light sources which produces light corresponding to the one of the primary colors, and outputs video image light modulated by the video signal, a projection unit which projects video image light output from the display units, and a light source control unit configured to control the amount of light produced by each of the light sources independently.
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