GREEN PHOTOSENSITIVE COLORING COMPOSITION, AND COLOR FILTER AND COLOR DISPLAY DEVICE EMPLOYING THE SAME

• Main Authors: ASAHI NORIKO, IKAME TADAATSU, HARADA GENKI, ONAKA NOZOMI
• Format: Patent
• Language: English; Japanese
• Published: 27.07.2017
• Subjects: APPARATUS SPECIALLY ADAPTED THEREFOR; CHEMISTRY; CINEMATOGRAPHY; COMPOSITIONS BASED THEREON; ELECTROGRAPHY; HOLOGRAPHY; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS THEREFOR; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; ORIGINALS THEREFOR; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a highly-reliable green photosensitive coloring composition that solves the problem of color change with light irradiation, which occurs when using a phthalocyanine pigment in a color filter for a liquid crystal display device, and a color filter prepared therewith, and a color display device comprising the same.SOLUTION: A green photosensitive coloring composition comprises (a) a coloring pigment, (b) a pigment dispersant, (c) a transparent resin, (d) a photopolymerizable monomer, and (e) a photopolymerization initiator. The (a) coloring pigment at least comprises phthalocyanine, and the (b) pigment dispersant is a copolymer comprising an imide structure.SELECTED DRAWING: None 【課題】液晶表示装置用のカラーフィルタにフタロシアニン顔料を用いる際に問題であった、光照射による色変化を解消し、信頼性の高い緑色感光性着色組成物とそれを用いたカラーフィルタ、並びにそれを具備したカラー表示装置を提供する。【解決手段】（ａ）着色顔料、（ｂ）顔料分散剤、（c）透明樹脂、（d）光重合性モノマー、（e）光重合開始剤を含有する感光性着色組成物であって、前記（ａ）着色顔料がフタロシアニンを少なくとも含み、前記（ｂ）顔料分散剤がイミド構造を含む共重合体であることを特徴とする緑色感光性着色組成物。【選択図】なし