| abstract |
The invention relates to a liquid-crystalline medium having a nematic phase comprising one or more compounds of formula D nnwherein the parameters have the meaning given in the text,nto the use thereof in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, to displays of this type which contain a liquid-crystalline medium of this type and to the use of the compounds of formula D for improvement of the contrast and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds, as well as to certain compounds of formula D, as specified in the text. |