| 摘要 |
<p>A liquid crystal composition comprising a first component of the formula (1-2), a second component of the formula (2-a) and a third component of the formulas (3) and (4), the respective contents being 3 to 30%, 10 to 60% and 20 to 80%, each by weight, <CHEM> R<4> &lparstr& C &rparstr& Z<5> &lparstr& D &rparstr& R<5> R<6> &lparstr& E &rparstr& Z<6> &lparstr& G &rparstr& Z<7> &lparstr& J &rparstr& R<7> wherein R, R', R<3>, R<4>, R<5> and R<6> each independently represent an alkyl group of C1-10 or an alkenyl group of C2-10; R<7> represents an alkyl group, an alkenyl group or an alkoxymethyl group of C1-10, B', C, D and J represent 1,4-cyclohexylene or 1,4-phenylene; E represents 1,4-cyclohexylene or pyrimidine-2,5-diyl; G represents 1,4-cyclohexylene or 1,4-phenylene wherein H at the lateral positions may be replaced by F; Z<1> and Z<6> represent -COO-, -C2H4- or a single bond; and Z<5> and Z<7> represent -C IDENTICAL C- or a single bond.</p> |
