A ferrielectric liquid crystal compound of the general formula (1),
wherein R is a linear alkyl group having 6 to 12 carbon atoms, either each of X and Y is a hydrogen atom or one of X and Y is a hydrogen atom and the other is a fluorine atom, m is an integer of 1 to 2, n is 1 and C* is an asymmetric carbon.
The above liquid crystal compound shows a ferrielectric phase in a wide temperature range and exhibits a fast response in spite of its small spontaneous polarization, and it is therefore remarkably useful for an active-matrix liquid crystal display device.
通式(1)的
铁电液晶化合物、
其中 R 是具有 6 至 12 个碳原子的直链烷基,X 和 Y 各为氢原子,或 X 和 Y 中的一个为氢原子,另一个为
氟原子,m 为 1 至 2 的整数,n 为 1,C* 为不对称碳。
上述液晶化合物在很宽的温度范围内呈现
铁电相,尽管自发极化很小,但反应速度很快,因此非常适用于有源矩阵液晶显示设备。