| 摘要 |
<p>The invention presents an excellent liquid crystal display composition possessing a negative dielectric anisotropy, comprising one or more compounds selected from the group consisting of formulas I, II, III, IV and V, <CHEM> <CHEM> <CHEM> <CHEM> <CHEM> where R<1> is alkyl, alkoxyalkyl, mono- or difluoroalkyl, or alkenyl, with each group having 2 to 7 carbon atoms; h, i, j, and k denote 0 or 1 with proviso that i+j=1; m is 0, 1 or 2; a six-membered ring expressed by A, B, or C respectively represents any one of trans-1-sila-1,4-cyclohexylene, trans-4-sila-1,4-cyclohexylene, or trans-1,4-cyclohexylene group; L represents F; and L<1> and L<2> represent H or F; n is 0, 1 or 2; and R<2> is H, R<1> or OR<1>, in which at least one compound thereof contains trans-1-sila-1,4-cyclohexylene group or trans-4-sila-1,4-cyclohexylene group.</p> |
