Projection type display apparatus with means for removing unnecessary polarized components of color lights
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United States of America Patent
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Jun 12, 2012
Grant Date -
Jun 4, 2009
app pub date -
Jan 22, 2009
filing date -
Aug 27, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A projection type display apparatus includes: a reflective polarizing plate for each color light which transmits each of R light, G light and B light therethrough, allows each transmitted light to enter a corresponding reflective liquid crystal panel for each color light, and reflects image light of each color which has been subjected to light modulation in accordance with an image signal of each corresponding color light by the reflective liquid crystal panel for each color light; an absorption type polarizing plate for R and G lights and a reflection type polarizing plate for B light, each of which removes an unnecessary polarized component from the image light of each color reflected by the reflective polarizing plate for each color light; a color combination optical system which subjects the image light of each color transmitted through the transmission type polarizing plate for each color light to color combination.
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