| abstract |
The present invention is a method of stabilizing a liquid crystal (LC) mixture having negative dielectric anisotropy, which is represented by the formula (I): R a -A 1- (Z 1 -A 2 ) m 1 -R b , One or more stabilizers in which R a , R b , A 1 , A 2 , Z 1 and m 1 have the meaning given in claim 1 in the LC mixture, based on the total weight of the mixture Method characterized in that it is added in a total amount of not more than 0.1%, LC medium containing one or more stabilizers of the formula (I), and VA type, IPS type comprising said stabilized liquid crystal medium Or an FFS type LC display. |