Reflective spatial light modulator array
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United States of America Patent
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Jan 6, 1998
Grant Date -
N/A
app pub date -
Feb 21, 1997
filing date -
Apr 28, 1995
priority date (Note) -
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Abstract
A reflective spatial light modulator array is described incorporating liquid crystal devices, mirrors, a semiconductor substrate, electrical circuits, and a reflector/absorber layer for blocking light. The invention overcomes the problem of shielding light from semiconductor devices, high optical throughput and contrast, pixel storage capacitance to hold the voltage across the liquid crystal device and precise control of the liquid crystal device thickness without spacers obscuring the mirrors.
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