Patent ID: 7828992

Claim:
A composition comprising at least one liquid crystal and at least one of a diaromatic ether, a diaromatic thioether and a diaromatic secondary amine, of formula (I) Ar 1 —(CH 2 ) l —X—(CH 2 ) k —Ar 2 (I) wherein X is O, S or NH; each of Ar 1 and Ar 2 is an aromatic ring system; and l and k is each independently 0 to 10; wherein each of Ar 1 and Ar 2 , independently, is an unsubstituted aromatic ring system or a substituted aromatic ring system having one or more substituents selected from the group consisting of Cl, F, Br, I, OH, NH 2 , —O(CH 2 ) n CH 3 , —(CH 2 ) n CH 3 wherein n is 0 to 22, —CY m H 3-m wherein Y is Cl, F, Br or I, and m is from 1 to 3, —CN, —COOH, a carboxylic acid ester, an unsubstituted cyclohexyl, a substituted cyclohexenyl, an unsubstituted cyclohexenyl, a substituted cyclopentadienyl, an unsubstituted cyclopentadienyl, a substituted cyclopentyl and an unsubstituted cyclopentyl.