用热台偏光显微镜，DSC和X光衍射方法研究了热致液晶的相转变行为，确认了这十种聚酯酰胺均为向列型热致液晶。
The nematic thermotropic liquid crystalline behaviour of ten kinds of PEAs obtained was studied by polarizing microscope, DSC and X-ray diffraction.
分析了常白型扭曲向列相液晶显示器(NWTNLCD)本征视角狭小和视角不均的原因。
The reason that Normally White twisted Nematic liquid Crystal Display (NW TN LCD) has inherent narrow and non uniform viewing Angle characteristics is analysed in this paper.
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