To provide a liquid crystalline medium and a liquid crystal display.

There are provided a liquid crystalline medium based on a mixture of dielectrically negative polar compounds which comprises one or more compounds of each of the formulae I and II, the use of the liquid crystal medium in an electro-optical display, particularly in a display with passive matrix addressing, based on the VA, ECB, PALC, FFS or IPS effect, and displays of this type. In the formulae, parameters each represents specific meaning.