Recently, an optical membrane resin project was completed and put into operation in Jinhua Zhejiang province. The owner is a group enterprise focusing on the R & D, production and sales of upstream materials of optoelectronic communication display technology. Among them, the original technology and technical level of key materials of coated circular polarizer are world leading. Fine surface coating materials and optical UV curing resin series products break through the oligopoly of foreign materials, fill the domestic gap and realize import substitution.