Patent ID: 7344761

Claim:
A liquid crystalline compound of formula I: in which R 11 denotes H, an alkyl or alkoxy radical having 1 to 15 carbon atoms, or alkenyl or alkenyloxy radical having 2 to 15 carbon atoms, wherein each of said radicals is unsubstituted or mono- or polysubstituted by halogen, where, in addition, one or more CH 2 groups in each of said radicals may each, independently of one another, be replaced by —C≡C—, —CH═CH—, —O—, —CO—, —CO—O— or —O—CO— in such a way that O atoms are not linked directly to one another, X 11 denotes F, Cl, CN, NCS, SF 5 , fluoroalkyl or fluoroalkoxy having 1 to 7 carbon atoms, or fluoroalkenyl or fluoroalkenyloxy having 2 to 7 carbon atoms; L 11 denotes H or F, and Y stands for O and W stands for CH 2 , or Y stands for CH 2 and W stands for O, or Y and W both stand for CH 2 .