Liquid crystalline compound for vertical alignment and a...

Details Liquid crystalline compound for vertical alignment and a... Liquid crystalline compound for vertical alignment and a...

2007-10-09

2007-10-09

Wu, Shean C (Department: 1756)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C428S001300, C252S299610, C252S299660, C570S129000

Reexamination Certificate

active

10928154

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.

REFERENCES:
patent: 6348244 (2002-02-01), Miyazawa et al.
patent: 6896939 (2005-05-01), Klasen-Memmer et al.
patent: 1352943 (2003-10-01), None
patent: 2339778 (2000-02-01), None
patent: 08-40953 (1996-02-01), None
English translation by computer for JP 08-40953, http://www4.ipdl.ncipi.go.jp/Tokujitu/PAJdetail.ipdl?N0000=60&N0120=01&N2001=2&N3001=H08-040953.
CAPLUS 2000: 68533.
CAPLUS 2003: 815300.

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