Patent ID: 8512820

Claim:
A mesogenic compound for a liquid crystal display, wherein the compound is of formula (I) Wherein R is a linear (C 6 -C 16 )alkyl, (C 6 -C 16 )fluoroalkyl, (C 6 -C 16 )alkoxy, (C 6 -C 16 )fluoroalkoxy, or a (C 6 -C 16 )alkyl-S(O) q group wherein q=0, 1 or 2; AR is a group of formula wherein a first wavy line indicates a point of attachment to R and a second wavy line indicates a point of attachment to Z; n is 2 to 12; R 1 , R 2 , and R 3 are each independently (C 1 -C 16 ) alkyl or fluoroalkyl; Y is N or P; Z is O, S(O) q , or CH 2 wherein q is 0, 1, or 2; and X is an anion.