| 摘要 |
PURPOSE: Provided are a nematic liquid crystal composition which is improved in response velocity and dielectric anisotropy and is reduced in drive voltage, and a twist nematic (TN) device apparatus, a super twist nematic device apparatus, a TFT-TN device apparatus, an IPS device apparatus and a vertically align device apparatus using the composition. CONSTITUTION: The nematic liquid crystal composition comprises a nematic liquid crystal compound represented by the formula 1; and a host mixture, wherein R is CnH2n+1O, CnH2n+1, CnH2n+1S or CnH2n-1 (wherein n is 1-15); A is a cyclohexylene group, a cyclohexylene-Ph group, a Ph-cyclohexylene group or Ph; a is 0 or 1; B is CF2O, an ester group, -CH2CH2-, -C=C- or a triple bond of C-C; b is 0 or 1; X and Y are independently H, F, Cl, Br, NCS or CN; Z is NCS, SCN or F; and z is 0 or 1. |
