| abstract |
The present invention relates to a liquid-crystalline medium having a clearing point of 120 ° C or more, containing one or more compounds selected from the group of the compounds of the formulas IA, IB, IC, ID and IIworin the groups and parameters which have the meanings given in claim 1 have, in a total concentration of 65% or more, and its use for electro-optical purposes, in particular for liquid crystal light valves for use in lighting devices for motor vehicles, liquid crystal light valves containing this medium, and lighting devices based on such liquid crystal light valves. |