DIFLUOROSUBSTITUTED HETEROCYCLIC COMPOUNDS AND THE USE THEREOF IN THE FORM OF COMPONENTS IN LIQUID CRYSTALLINE MEDIA

摘要

The invention relates to compounds of formula (I), wherein a, b, c, d, e, R¹, R², A¹, A², A³, A⁴, Y¹, Y², Y³, Z¹, Z², Z³, Z⁴ and ^{---- a}