Optical modulation device using ferroelectric liquid crystal and AC and DC driving voltages
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 27, 1988
Grant Date -
N/A
app pub date -
Aug 25, 1987
filing date -
Aug 27, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical modulation device includes: a ferroelectric liquid crystal disposed between a pair of substrates; provision for applying an alternating voltage sufficient to render the ferroelectric liquid crystal turbid; and provision for superposing a DC voltage on the alternating voltage. A portion of the ferroelectric liquid crystal rendered turbid through the application of an alternating voltage is selectively caused to have an increased transmittance when superposed with a DC voltage.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully