White Reflection Film by Photopolymerization of Reactive Mesogen in Cholesteric Liquid Crystal Layer

초록

We proposed a white reflection film (WRF) with the broadband reflection spectrum using a cholesteric liquid crystal (CLC) film mixed reactive mesogen (RM) monomers. The ultra-violet (UV) irradiation to the CLC film with RM gives rise to a gradient of the chiral pitch due to a gradient in UV intensity by UV absorption of RM monomers. Finally, the white reflection film which reflects the light with whole visible range is achieved.