Patent ID: 6695979
Filing Date: 2004-02-24
Classification: C09K

Abstract:
A liquid crystal medium, which comprises a first component (A) comprising one or more dielectrically positive compounds with high values of &Dgr;n of formula I: wherein R1 is n-alkyl or n-alkoxy with 1 to 7 C-atoms, or alkenyl; alkenyloxy or alkoxyalkyl with 2 to 7 C-atoms, X1 is F, and Y11, Y12, Y13, Y14, Y15 and Y16 are, independently of each other, H or F, provided that at least one of Y13 and Y15 is F, and simultaneously a second component (B) comprising one or more compounds of formula II: wherein R2 is n-alkyl or n-alkoxy with 1 to 7 C-atoms, or alkenyl, alkenyloxy or alkoxyalkyl with 2 to 7 C-atoms, X2 is F, Cl, CF3, OCF3 or OCF2H, and Y2 H or F.