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。