A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.
The liquid crystal composition having a nematic phase, wherein the first component contains a specific three ring compound having a large optical anisotropy, the second component contains a specific four ring compound having a large dielectric anisotropy, and the third component contains a specific two ring compound having an especially small viscosity. The liquid crystal display device contains the liquid crystal composition.
提供了一种液晶组合物,它至少满足向列相最高温度高、向列相最低温度低、粘度小、光学各向异性大、介电各向异性大、比电阻大、对紫外线稳定性高和对热稳定性高等特性中的一个特性,或者至少在两个特性上达到适当平衡。所提供的
AM 设备具有响应时间短、电压保持比大、对比度大、使用寿命长等特点。
具有向列相的液晶组合物,其中第一组分包含具有较大光学各向异性的特定
三环化合物,第二组分包含具有较大介电各向异性的特定四环化合物,第三组分包含具有特别小粘度的特定二环化合物。液晶显示装置包含液晶组合物。