申请人:SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO., LTD.
公开号:US20170101581A1
公开(公告)日:2017-04-13
The present disclosure discloses a liquid crystal compound and a liquid crystal composition. The liquid crystal compound has a general structural formula as represented by formula I. The liquid crystal composition provided by the present disclosure has a lower rotary viscosity γ
1
, can achieve a quick response, and further has an appropriate dielectric anisotropy Δε, an appropriate optical anisotropy Δn, a high stability to heat and light, a high VHR numerical value especially in the case where the liquid crystal is under harsh conditions, and a stability to electric field and electromagnetic radiation. As a liquid crystal material for use in thin film transistor techniques (TFT-LCD), the material further has the properties of a wider nematic phase temperature range, an appropriate birefringence anisotropy, a very high electrical resistivity, a good anti-ultraviolet performance, a high charge holding rate, a low vapor pressure etc.
本公开披露了一种液晶化合物和液晶组合物。该液晶化合物具有由公式I表示的一般结构式。本公开披露提供的液晶组合物具有较低的旋转粘度γ1,能够实现快速响应,并且具有适当的介电各向异性Δε,适当的光学各向异性Δn,高热和光稳定性,在液晶处于恶劣条件下时具有高VHR数值的稳定性,以及对电场和电磁辐射的稳定性。作为用于薄膜晶体管技术(TFT-LCD)的液晶材料,该材料还具有更广的向列相温度范围,适当的双折射各向异性,非常高的电阻率,良好的抗紫外线性能,高电荷保持率,低蒸汽压等特性。