Projection display having polarization compensator
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United States of America Patent
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Aug 24, 2004
Grant Date -
N/A
app pub date -
Nov 15, 1999
filing date -
Nov 15, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A projection display system includes a light source, at least-one polarizer, at least one liquid crystal panel for generating an image, and a projection lens for projecting the image. The system includes a polarization compensator having a plurality of regions each having a respective birefringence. The birefringence of one of the regions is different than the birefringence of another of the regions. The birefringence of the various regions may be controlled electrically.
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