| abstract |
The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the formula I in a total concentration of ≥ 40%, wherein the parameters have the scope of claim 1 And the meaning of the liquid crystal medium for photoelectric purposes, in particular for a lighting device for a motor vehicle; and for a liquid crystal light valve comprising the medium and containing the liquid crystal Light valve motor vehicle lighting device. |