A fluorine-containing liquid crystal compound is of formula (I) :
wherein R1 represents an alkyl group having from 6 to 12 carbon atoms; R2 represents an alkyl groups having from 1 to 6 carbon atoms; Y represents
or a single bond; m is 1 or 2; n is 2 or 3 when Y is -O- or
or n is an integer of from 1 to 3 when Y is or a single bond; and * means an asymmetric carbon atom.
Methods of synthesis are given, according to the nature of Y. 21 specific compounds are shown.
The liquid crystal compound shows high-speed response and exhibits ferroelectricity over a wide temperature range, and so it is highly useful in high-density and large-sized display devices.
一种含
氟液晶化合物为式(I):
其中 R1 代表具有 6 至 12 个碳原子的烷基;R2 代表具有 1 至 6 个碳原子的烷基;Y 代表
或单键;m 是 1 或 2;n 是 2 或 3,当 Y 是-O-或
或当 Y 为或单键时,n 为 1 至 3 的整数;* 表示不对称碳原子。
根据 Y 的性质,给出了 21 种具体化合物的合成方法。
该液晶化合物具有高速响应性,并在宽温度范围内具有
铁电性,因此在高密度和大尺寸显示设备中非常有用。