| abstract |
(57) [Summary] [PROBLEMS] To provide a purification apparatus capable of removing ionic impurities present in a liquid crystal material and increasing the voltage holding ratio of the liquid crystal material, the ability to remove ionic impurities has been enhanced. An object of the present invention is to provide a liquid crystal material refining apparatus that can be suitably used for a liquid crystal material in a crystal phase at room temperature, and a liquid crystal material refining method using the apparatus. SOLUTION: The liquid crystal material refining apparatus has a structure capable of injecting a liquid crystal material between electrodes, and further has a mechanism capable of heating the temperature of the liquid crystal material to 50 ° C. or higher, and uses the liquid crystal material refining apparatus. A liquid crystal material refining method, comprising: |