Patent ID: 8377331

Claim:
A liquid crystal composition comprises a liquid crystal component or a highly polar liquid crystal component, wherein the liquid crystal component is selected from those of formula (II): wherein R3 is selected from H atom, substituted and unsubstituted alkyl groups having from 1 to 10 carbon atoms, substituted and unsubstituted alkenyl groups having from 1 to 10 carbon, halogen atoms, carbon nitride groups (CN), isothiocyanate groups (NCS), alkoxyfluoroakyl groups (OCF2) and carbon trifluoride groups (CF3), one or more CH2 groups of the substituted alkyl groups having from 1 to 10 carbon atoms, or the substituted alkenyl groups having from 1 to 10 carbon is replaced by —O—, —S—, —COO—, —CO—, —OCO— or —O—COO—; the highly polar liquid crystal component is selected from wherein R4 to R12 are selected from H atom, substituted and unsubstituted alkyl groups having from 1 to 10 carbon atoms, substituted and unsubstituted alkenyl groups having from 1 to 10 carbon, halogen atoms, carbon nitride groups (CN), isothiocyanate groups (NCS), alkoxyfluoroakyl groups (OCF2) and carbon trifluoride groups (CF3), one or more CH2 groups of the substituted alkyl groups having from 1 to 10 carbon atoms, or the substituted alkenyl groups having from 1 to 10 carbon is replaced by —O—, —S—, —COO—, —CO—, —OCO— or —O—COO—.