Making liquid suspension type light valve film

摘要

A film for a light valve is made by phase separation of a mixture comprising a homogeneous polymeric solution and a liquid suspension of light-polarizing particles. Uniform liquid-suspension droplets in a polymeric matrix are formed by phase separation processing, e.g., by polymerization or solvent evaporation. Such simple, one-step processing results in cost reduction in display and window applications. Sealing problems of conventional light valves are alleviated.