| abstract |
PROBLEM TO BE SOLVED: To provide a highly polar compound having high optical anisotropy, extremely high clearing point and UV stability. Provided is a compound which is particularly suitable as a component of a liquid crystal medium in an LC display. PROBLEM TO BE SOLVED: Formula I: Wherein X 1 is F, Cl, CHF 2 , CF 3 , O CHF 2 or OCF 3 and R 1 is 1-2 A compound represented by the formula: which is an alkyl having 0 C atoms. |