LIQUID CRYSTAL MATERIAL OF SMECTIC PHASE IN HIGH SCATTERING STATE AND DISPLAY DEVICE THEREOF
申请人:Halation Photonics Corporation
公开号:EP2799516A1
公开(公告)日:2014-11-05
The present invention relates to a high scattering smectic liquid crystal material and display device using the same. The high scattering smectic liquid crystal material contains two or more organic compound of Formula (I). In the present invention, a series of smectic A phase liquid crystals having compact arrangement of crystal domains or a series of smectic liquid crystal mixed materials having a degree of order higher than that of the smectic A phase and an optical texture different from that of the smectic A phase are obtained by mixing a smectic liquid crystal with an organic compound having a high optical anisotropy (Δn) or mixing different types of smectic phases. When used in a smectic stable state liquid crystal display pattern, these materials have a high scattering state and can effectively improve the contrast of a smectic liquid crystal display device. The present invention also improves contrast when it used in a reflective smectic liquid crystal display device.
本发明涉及一种高散射共晶液晶材料和使用这种材料的显示设备。高散射共晶液晶材料含有两种或两种以上式(I)的有机化合物。在本发明中,通过将共晶液晶与具有高光学各向异性(Δn)的有机化合物混合,或混合不同类型的共晶相,可获得一系列具有紧凑晶域排列的共晶 A 相液晶,或一系列阶次高于共晶 A 相且光学质地不同于共晶 A 相的共晶液晶混合材料。当这些材料用于共晶稳定态液晶显示图案时,具有高散射状态,可有效提高共晶液晶显示装置的对比度。当本发明用于反射型非晶态液晶显示装置时,也能提高对比度。