Novel liquid crystal compounds exhibiting an SC phase which, when added to an optically active liquid crystal, give a chiral smectic liquid crystal material of use in liquid crystal display elements utilizing the ferroelectricity of the material have the formula:
wherein R¹ represents a C₇C₁₂ alkyl group and R² represents C₅-C₁₂ alkyl group.
新型液晶化合物具有 SC 相,添加到光学活性液晶中后可得到手性 Smectic 液晶材料,该材料可用于利用其
铁电性的液晶显示元件,其结构式为: 其中 R¹ 代表 C₇C₁₂ 烷基,R² 代表 C₅-C₁₂ 烷基。