WIDE-BAND CHOLESTERIC LIQUID CRYSTAL FILM, ITS MANUFACTURING METHOD, CIRCULAR POLARIZING PLATE, LINEAR POLARIZER, ILLUMINATION APPARATUS AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a wide-band cholesteric liquid crystal film having a wide reflection band and favorable durability.;SOLUTION: The wide-band cholesteric liquid crystal film 3 is obtained by applying a liquid crystal mixture containing a polymerizable mesogene compound (a), a polymerizable chiral agent (b) and a photopolymerization initiator (c) on an alignment base material and subjected to UV polymerization in an inert gas atmosphere. The film has ≥200 nm of reflection band width.;COPYRIGHT: (C)2004,JPO&NCIPI