abstract |
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds, characterised in that it comprises one or more compounds of the formula I in which R<SUP>1</SUP>, L<SUP>1 </SUP>and L<SUP>2 </SUP>are as defined in Claim 1, and to the use thereof for electro-optical purposes, in particular TN monitor applications. |