Image projection device with an integrated photodiode light source
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United States of America Patent
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-
Apr 27, 2004
Grant Date -
Jun 26, 2003
app pub date -
Nov 18, 2002
filing date -
Dec 20, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A power-saving method with integrated photodiode light source. This device has a circuit board with a plurality of red, green and blue photodiodes as the device's light source. Additionally, a light control circuit is used to control light beam from the light source illuminating a reflector and then reflecting to a reflective display panel in order to reflect the light beam and generate an image. Thus, a projection module can project the image on a viewing plate. As cited, the inventive device includes: a light control circuit, a light source module, a polarizing beam splitter (PBS), a reflective display panel and a projection module.
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