More than 12 years of LC production experience. Qingdao QY Liquid Crystal Co., Ltd. is a professional manufacturer and exporter of liquid crystal material, liquid crystal monomer,liquid crystal intermediate and Nematic liquid crystal, especially for polymer dispersed liquid crystal,PDLC Liquid Crystal Mixture QYPDLC-110 Lower Operating Temperature Tkn(C) <-40 Upper Operating Temperature Tni(C) 95 Birefringence(589nm,20C) 0.1 Refrective index Extraordinary (Ne)(589nm,20C) 1.591 Electrical properties V90(VAC)(V) 1.73 Electrical properties V10(VAC)(V) 2.95