Patent ID: 6808763
Filing Date: 2004-10-26
Classification: C09K

Abstract:
A liquid-crystalline medium, which comprises one or more compounds of the formula A: and at least one compound of the formula B: in whichRa and Rbb are, independently, H, an alkyl radical having from 1 to 12 carbon atoms which is unsubstituted, monosubstituted by CN or CF3 or monosubstituted to perhalosubstituted by halogen, optionally one or more CH2 groups in these radicals being replaced, in each case independently of one another, by â€”Oâ€”, â€”Sâ€”, â€”CH&boxH;CHâ€”, â€”Câ‰¡Câ€”, â€”COâ€”, â€”COâ€”Oâ€”, â€”Oâ€”COâ€” or â€”Oâ€”COâ€”Oâ€” in such a way that O atoms are not linked directly to one another,Rb is an alkenyl radical having from 2 to 7 carbon atoms, L1 is H or F, and x is 1.