CONTEXT

Today, liquid crystal based materials are increasingly used because of their optical properties which enable them to control visible and invisible (infrared IR and ultraviolet UV) light. In particular, cholesteric liquid crystal based materials have been developed, because they have optical properties that differ from those of nematic liquid crystals due to their helical structure. Even though, for certain applications, reflective selectivity is required in cholesteric liquid crystals, many applications exist for which such selectivity is a disadvantage.