发明名称 |
FAST SWITCHING LIQUID CRYSTAL COMPOSITIONS FOR USE IN BISTABLE LIQUID CRYSTAL DEVICES |
摘要 |
The invention is directed to the use of a fast switching liquid crystal composition said composition comprising at least 30 weight % of a component (alpha) containing one or more compounds having a dielectric anisotropy Deltaepsilon of at least 25, whereby at least 25 weight % of said compounds have a dielectric anisotropy Deltaepsilon of at least 40; and at least 5 weight % of a component (delta) containing one or more compounds having a ratio of gamma<SUB>1</SUB>/T<SUB>NI</SUB><SUP>K </SUP>of 0.51 mPa.s/K or less, a clearing point T<SUB>NI </SUB>of at least 100° C. and a rotational viscosity gamma<SUB>1 </SUB>of not more than 190 mPa.s (wherein gamma<SUB>1 </SUB>is the rotational viscosity at 20° C. in mPa.s and T<SUB>NI</SUB><SUP>K </SUP>is the clearing point in degrees Kelvin); in a bistable liquid crystal device and especially in a zenithal bistable nematic liquid crystal device, a nematic liquid crystal medium, and a bistable liquid crystal device comprising said fast switching liquid crystal composition. |
申请公布号 |
AU2003286177(A1) |
申请公布日期 |
2004.06.30 |
申请号 |
AU20030286177 |
申请日期 |
2003.11.19 |
申请人 |
MERCK PATENT GMBH |
发明人 |
MATTHEW FRANCIS;MARK, JOHN GOULDING;JOHN, CLIFFORD JONES;STEVE BELDON |
分类号 |
C09K19/02;C09K19/34;C09K19/46;(IPC1-7):C09K19/46 |
主分类号 |
C09K19/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|