| abstract |
The present invention relates to a nematic liquid crystal composition having a negative dielectric anisotropy (DELTA epsilon) useful as a liquid crystal display material and a liquid crystal display device using the same. The liquid crystal composition of the present application, the refractive index anisotropy (Δn) and a nematic phase - without lowering the isotropic liquid phase transition temperature (T ni), was sufficiently small, the viscosity (η), rotational viscosity (γ1) is sufficiently small, the spring constant (K 33 ) is large and has a negative absolute value of the dielectric anisotropy (DELTA epsilon) and is free from or suppressed from display defects such as the VA type using the same, and can provide a liquid crystal display element with a high response speed with excellent display quality. The liquid crystal display device using the liquid crystal composition of the present invention is useful for a liquid crystal display device for driving an active matrix and can be applied to liquid crystal display devices such as a VA type and a PSVA type. |