| abstract |
The present invention relates to a liquid crystal medium comprising at least one compound of the formula (1).n n n n n n n n n n Wheren n n X is F, Cl, CN, SF 5 , NCS or halogenated alkyl radical of 8 or less carbon atoms, in which the CH 2 group is substituted by -O- or -CH = CH- so that O atoms are not directly connected to each other Can be,n n n L 1 , L 2 and L 3 are each independently H or F.n n n The invention also relates to the fluorinated biphenyls of formula (I). |