Nematic liquid crystalline compounds

摘要

A nematic liquid crytalline compound selected from the group consisting of compounds represented by the general formula <IMAGE> compounds represented by the general formula <IMAGE> compounds represented by the general formula <IMAGE> and compounds represented by the general formula <IMAGE> wherein R and R', independently from each other, represent a linear alkyl group having 1 to 7 carbon atoms, and each cyclohexane ring is arranged in a trans(equatorial-equatorial) form. These compounds have higher nematic phaseisotropic liquid phase transition temperatures than conventional liquid crystalline compounds.