| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid-crystalline medium preferably having a large relative resistance and a low threshold voltage, useful for MLC, TN or STN, especially for reflection type MLC display. SOLUTION: The invention relates to the liquid-crystalline medium comprising one or more compounds of formula I. In the formula R is a halogenated or unsubstituted alkyl or alkoxy group, X is F, Cl, CN, SF<SB>5</SB>, SCN, NCS, or a halogenated alkyl group, a halogenated alkenyl group, a halogenated alkoxy group or a halogenated alkenyloxy group, and Y<SP>1</SP>and Y<SP>2</SP>are each H or F. COPYRIGHT: (C)2006,JPO&NCIPI |
