申请人:Nippon Mining Co., Ltd.
公开号:US05098602A1
公开(公告)日:1992-03-24
This invention provides a novel halogen-containing ester compound represented by the following general formula (I): ##STR1## (wherein R is an alkyl group, A is selected from a single bond, --O--, --COO-- and --CO--, both of X and Y are halogen atoms or either one of X and Y is a halogen atom and the other is a hydrogen atom, each of m and n is 0 or 1, m+n=0 or 1, each of k and l is an integer of 1 or more, provide k<l), a liquid crystal composition and a light switching element each containing the above compound as well as a novel fluorophenol compound represented by the following general formula (II): ##STR2## (wherein each of k and l is an integer of 1 or more, provided k<l) as an intermediate for the synthesis of the above ester compound and a method of producing the same.
这项发明提供了一种新颖的含卤酯基化合物,其通式为(I):##STR1##(其中R是烷基,A从单键、-O-、-COO-和-CO-中选择,X和Y均为卤素原子或X和Y中的一个为卤素原子另一个为氢原子,m和n分别为0或1,m+n=0或1,k和l分别为1或更多的整数,提供k
Anti-ferroelectric liquid crystal compound and anti-ferroelectric liquid
申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:US05723069A1
公开(公告)日:1998-03-03
An anti-ferroelectric liquid crystal compound of the following general formula (1), and an anti-ferroelectric liquid crystal composition containing it, ##STR1## wherein R is a linear alkyl group, A is --O-- or --COO--, m is an integer of 5 or greater, n is an integer of 1 to 3, each of X and Y is independently a hydrogen atom or a fluorine atom, and C* is asymmetric carbon.
以下是一种反铁电液晶化合物及其组成的反铁电液晶组合物,其化学式如下:
##STR1##
其中,R是线性烷基,A是--O--或--COO--,m为5或更大的整数,n为1到3的整数,X和Y分别是氢原子或氟原子,C*为不对称碳。
Swallow-tailed compound and ferrielectric liquid crystal composition
申请人:Mitsubishi Gas Chemical Company
公开号:US05938973A1
公开(公告)日:1999-08-17
A swallow-tailed compound of the following general formula (1), ##STR1## wherein m is an integer of 4 to 10, n is an integer of 2 to 6, p is 0 or 1 and each of X and Y is independently a hydrogen or fluorine atom; and a ferrielectric liquid crystal composition consisting essentially of the swallow-tailed compound of the general formula (1) and a ferrielectric liquid crystal compound of the following general formula (2), ##STR2## wherein R is a linear alkyl group having 6 to 12 carbon atoms, Z is a hydrogen or fluorine atom, r is an integer of 2 to 4 and s is an integer of 2 to 4. The ferrielectric liquid crystal composition has a ferrielectric phase in a broad temperature range and attains a fast response and a large tilt angle in a broad temperature range so that a ferrielectric liquid crystal display device having high display qualities can be provided.
以下是翻译结果:
一种燕尾式化合物,其一般式(1)如下:##STR1##
其中m为4至10的整数,n为2至6的整数,p为0或1,X和Y各自独立地是氢或氟原子;以及一种铁电液晶组合物,其基本上由上述一般式(1)的燕尾式化合物和以下一般式(2)的铁电液晶化合物组成:##STR2##
其中R是具有6至12个碳原子的线性烷基,Z是氢或氟原子,r为2至4的整数,s为2至4的整数。该铁电液晶组合物在广泛的温度范围内具有铁电相,并在广泛的温度范围内实现快速响应和大倾斜角,从而可以提供具有高显示质量的铁电液晶显示器件。
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