Liquid crystal display device and liquid crystal substance therefor.

摘要

Anti-ferroelectric liquid crystal substances which are represented by the formula (1): <CHEM> wherein R is a straight chain alkyl group having 6 to 10 carbon atoms, X is hydrogen or fluorine atom, Z is -CH3, -CF3 or -C2H5, and C @ stands for an asymmetric carbon atom, and l , m, and n are 0 or a certain integer depending on the specific kinds of X and Z, and the use of the substances for liquid crystal display devices.