| abstract |
(57) [Summary] (with correction) [PROBLEMS] A liquid crystal composition having low temperature dependence of viscosity without deteriorating various liquid crystal characteristics such as threshold voltage and steepness, and a response speed using this liquid crystal composition is improved. Provide fast and high contrast liquid crystal display devices. SOLUTION: The first component has a general formula I (R 1 and R 2 are a C0-5 alkyl group; 3. ) Of the general formula I or III as a second component (Ring A, B and C are 1,4-phenylene group, naphthalene-2,6-diyl group, phenanthrene-2,7-diyl group, trans-1,4-cyclohexylene group, trans-1,3-dioxane -2,5-diyl group, pyridine- 2,5-diyl group, pyrimidine-2,5-diyl group and the like, m is 0 to 2, Z 1 and Z 2 is a single bond, -CH 2 CH 2 -, - CH 2 O - , - CH = CH -, - COO -, - Represents C≡C- or the like. A liquid crystal composition containing at least one compound of the formula (1). |