| 摘要 |
The invention provides a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a large optical anisotropy, a large positive dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and to heat, or having a suitable balance regarding at least two of the characteristics, and the AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth The liquid crystal composition contains two ring compound having a large optical anisotropy and a negatively large dielectric anisotropy as the first component, two ring compound having a negatively large dielectric anisotropy and a small viscosity as the second component, the compound having a small viscosity as the third component, the compound having a negatively large dielectric anisotropy as the fourth component, and the compound having an especially negative large dielectric anisotropy as the fifth component. The liquid crystal display device contains the composition. |
