Patent ID: 8709281

Claim:
A liquid crystal composition comprising a chiral dopant compound represented by the following structure: wherein: R 1 and R 2 are independently hydrogen, —(C═O)R 9 , —(C═O)R 10 , alkyl, aryl, alkaryl, alkenyl, cycloalkyl, alkoxyaryl, or heterocyclic all either substituted or unsubstituted, or combine to form a carbocyclic ring; R 3 is hydrogen, halogen, cyano, alkoxy, NHCOR 9 , NHSO 9 R 9 , COOR 9 , OCOR 9 , aryl, alkyl, alkenyl, cycloalkyl, or heterocyclic all either substituted or unsubstituted; R 4 is hydrogen, alkyl, aryl, alkenyl, cycloalkyl, or heterocyclic all either substituted or unsubstituted; R 5 , R 6 , R 7 , and R 8 are independently hydrogen, halogen, cyano, alkoxy, NHCOR 9 , NHSO 2 R 9 , COOR 9 , OCOR 9 , aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl or heterocyclic all either substituted or unsubstituted, or combine with each other, or R 5 can combine with R 4 , to form a carbocyclic or heterocyclic ring; R 9 and R 10 are independently alkyl, alkoxy, aryl, naphthyl, styryl, alkenyl, cycloalkyl, alkoxyaryl, cycloalkoxy, or heterocyclic all either substituted or unsubstituted, or combine to form a carbocyclic ring.