随着TFT-LCD(Thin FilmTransisitor-Liquid Crystal Display)技术的发展，其应用领域越来越广阔，对液晶材料的要求也越来越高。为了保证液晶材料的质量，使其适应液晶显示器件的要求，液晶材料的生产纯化技术研究成为液晶领域的一项重要工作。本文介绍了反式-4-(反式-4'-丙基环己基)环己基乙烯单体液晶的精制纯化研究，可以得到适用于TFT液晶材料的高纯度、高电阻率、低离子浓度的单体材料。

TFT-LCDs (Thin Film Transistor-Liquid Crystal Display) are more and more widely used in different areas with the development of technology and the demands on LC materials are also more and more strict. To ensure the quality of LC materials, it's an important thing to increase the purities of LC compounds, which needs more research of purification methods. The article presentation the investigation of purification method of trans-4-(trans-4'-propylcyclohexyl)-cyclohexylvinyl, and the monomer LC material is gotten which has high purity, high resistance and low ion consistence.