Ferroelectric liquid crystal device
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United States of America Patent
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Mar 18, 1997
Grant Date -
N/A
app pub date -
Jul 5, 1995
filing date -
Nov 24, 1992
priority date (Note) -
Expired
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Abstract
Multiplex addressed ferroelectric liquid crystal devices containing liquid crystal mixtures composed of components A, B and C. Component A consists of one or more optically active compounds capable of imparting a spontaneous polarization to the material. Component B is a compound or compounds of the formula: ##STR1## where R.sub.1 and R.sub.2 independently represent straight or branched chain C.sub.3 -C.sub.12 alkyl or alkoxy groups, a, b and c are independently 0, 1 or 2 and the total of a+b+c is not greater than 4. Component C is selected from a range of liquid crystal components.
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