Silicon compound, liquid crystal composition and liquid crystal display
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United States of America Patent
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Mar 9, 2004
Grant Date -
Sep 11, 2003
app pub date -
Feb 28, 2002
filing date -
Mar 1, 2001
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Expired
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Abstract
Silicon compounds having a low viscosity and a low threshold voltage and improved mutual solubility, a liquid crystal composition comprising the same and a liquid crystal display using the liquid crystal composition. The silicon compound is represented by formula (1): ##STR1## wherein Y.sup.1 is, for example, alkylene having 1 to 10 carbon atoms, Y.sup.2 is, for example, hydrogen, halogen, --CN, --C.ident.C--CN, or alkyl having 1 to 10 carbon atoms; A.sup.1, A.sup.2, A.sup.3, and A.sup.4 each are, for example, independently 1,4-cyclohexylene, 1,4-cyclohexenylene, 1,4-phenylene, or 1,4-phenylene; Z.sup.1, Z.sup.2 and Z.sup.3 each are independently a single bond, --(CH.sub.2).sub.2 --, --OCH.sub.2 --, --CH.sub.2 O--, --CH.dbd.CH--, --C.ident.C--, --(CH.sub.2).sub.4 --, --O(CH.sub.2).sub.3 --, --(CH.sub.2).sub.3 O--, --COO--, --OCO--, --OCF.sub.2 --, or --CF.sub.2 O--; and p and q each are independently 0 or 1.
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