WIDE BAND CHOLESTERIC LIQUID CRYSTAL FILM, ITS MANUFACTURE METHOD, CIRCULARLY POLARIZING PLATE, LINEAR POLARIZER, ILLUMINATOR AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a wide band cholesteric liquid crystal film which has a wide reflection band and excellent durability.;SOLUTION: The wide band cholesteric liquid crystal film is obtained by ultraviolet polymerization of a liquid crystal mixture comprising a polymerizable mesogen compound (a), a polymerizable chiral agent (b), a photopolymerization initiator (c) and a polymerizable ultraviolet ray absorber (d) between two sheets of substrates, and has a reflection band width of ≥200nm.;COPYRIGHT: (C)2004,JPO&NCIPI