| abstract |
A nematic liquid crystal composition includes a compound of formula (1) and a host mixture: n n nwherein ‘R’ is chosen from C n H 2n+1 O, C n H 2n+1 , C n H 2n+1 S or C n H 2n−1 ; ‘n’ is an integer of 1 to 15; ‘A’ is n n n‘a’ is 0 or 1; ‘B’ is —CH 2 CH 2 —, —C═C—, —C≡C— or n n nb’ is 0 or 1 ; ‘D’ is n n n—CH 2 CH 2 —, —C═C— or —C═C—; ‘d’ is 0 or 1; ‘X’ is H, F, Cl, Br, NCS or CN; and ‘Y’ is from NCS, SCN or F. A liquid crystal display apparatus employing the nematic liquid crystal composition has a high response speed and a high phase transition temperature. In addition, the nematic liquid crystal composition has an augmented birefringence and a dielectric anisotropy. The liquid crystal display apparatus using the nematic liquid crystal composition may have an enhanced brightness. |