Liquid crystal shutter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Oct 12, 2004
Grant Date -
Oct 31, 2002
app pub date -
Nov 13, 2001
filing date -
Mar 27, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a liquid crystal shutter that uses as a shutter a liquid crystal panel constructed by sandwiching DHF liquid crystal between a pair of substrates provided with one or more pixel electrodes and one or more counter electrodes, wherein a driving waveform for the panel has a write period comprising two subfields. In each of the subfields, a single pulse is applied to a pixel, the single pulse applied in one subfield being opposite in polarity to the single pulse applied in the other subfield. On the other hand, a constant voltage of 0 V or close to 0 V is applied to the pixel during a period in which neither of the single pulses is applied.
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