Liquid crystalline compound for vertical alignment and a liquid crystalline composition comprising the same
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United States of America Patent
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Oct 9, 2007
Grant Date -
Sep 15, 2005
app pub date -
Aug 30, 2004
filing date -
Nov 27, 2003
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Abstract
A vertical alignment liquid crystalline compound containing a laterally substituted aromatic cyclic moiety. The liquid crystalline compound has a wide temperature range of the nematic phase, a high optical anisotropy and a high negative dielectric anisotropy. In addition, since the rotation viscosity and the K33/K11 ratio of the liquid crystalline compound are maintained at a low level, the liquid crystalline compound can be effectively used as a liquid crystalline medium having good image quality and a high response speed even when applied to thin liquid crystalline cells.
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