| abstract |
Liquid crystalline composition being an admixture of a group (A) with one or more components exhibiting a positive dielectric anisotropy (Δε) and a group (B) with one or more components exhibiting a neutral dielectric anisotropy whereinn (a) at least one component of group (A) is a compound of the formula In or a compound of the formula IIn or wherein (b) at least one component of group (B) is a compound of the formula IIIn wherein R¹, R², Y, Q, X and L¹ through L¹² have the meaning given in Claim 1, can be used in a twisted nematic cell. |