| abstract |
Nematic liquid crystal medium, characterized in that it contains a) a dielectrically negative, liquid crystalline component (component A) which contains one or more dielectrically negative compound (s) selected from the group of compounds of the formulas I-4 and I-5, in which R11 contains alkyl 1 to 7 carbon atoms, alkoxy with 1 to 7 carbon atoms, or alkenyloxy with 2 to 7 carbon atoms, R12 alkyl or alkoxy with 1 to 7 carbon atoms or alkenyl, alkenyloxy or alkoxyalkyl with 2 to 7 carbon atoms , Z12 means OCF2 or CF2O, b) a dielectrically negative, liquid-crystalline component (component B) which contains one or more compound (s) of the formula II-1, wherein R21 and R22 each independently of one another are alkyl or alkoxy having 1 to 7 C atoms , or alkoxyalkyl, alkenyl or alkenyloxy with 2 to 7 carbon atoms, m denotes 0 or 1 and c) a dielectrically neutral, liquid-crystalline component (component C) which contains one or more compounds selected from the group ... |