Mixtures comprising a nematic liquid crystal and a non-mesomorphic compound

摘要

The invention relates to a mixture comprising a nematic liquid crystal and a non-mesomorphous compound. The non-mesomorphous compound makes it possible to improve the elastic behavior of the nematic liquid crystal by increasing the value of the ratio K33/K11, in which K33 represents the elastic bending constant and K11 the elastic fanning constant of the liquid crystal. The non-mesomorphous compound can be in accordance with the formula: <IMAGE> (I) in which R1 and R2, which can be the same or different, represent a hydrogen atom or an alkyl radical having 1 to 12 carbon atoms and n is an integer between 2 and 16 and can be associated with liquid crystals or liquid crystal mixtures containing a 1-(alkylcyclohexyl)-2-(alkylfluorobiphenylyl)-ethane. These mixtures can be used as a liquid crystal in a display device.