COLORED COMPOSITION FOR COLOR FILTER AND COLOR FILTER

• Main Author: ANDO MUNENORI
• Format: Patent
• Language: English; Japanese
• Published: 16.03.2017
• Subjects: ADHESIVES; APPARATUS SPECIALLY ADAPTED THEREFOR; CHEMISTRY; CINEMATOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; ELECTROGRAPHY; FREQUENCY-CHANGING; HOLOGRAPHY; LAKES; MATERIALS THEREFOR; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; ORIGINALS THEREFOR; PAINTS; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide a blue colored composition for a color filter excellent in high lightness, a high contrast ratio and heat resistance, and a color filter excellent in high lightness, a high contrast ratio and heat resistance using the above composition.SOLUTION: A colored composition for a color filter is provided, comprising a colorant (A), a binder resin (B) and an organic solvent (C). The colorant (A) comprises: a resin salt-forming compound (A1) obtained by allowing a vinyl resin (a1) having a structural unit having a cationic group in a side chain and represented by general formula (1) to react with an anionic dye (a2); and a colorant (A2) that is a colorant (A2-1) represented by general formula (2) or a colorant (A2-2) represented by general formula (3), having a peak wavelength λmax2 in a longer wavelength side by 5 to 100 nm than a peak wavelength λmax1 of the resin salt-forming compound (A1).SELECTED DRAWING: None 【課題】高明度、高コントラスト比かつ耐熱性に優れるカラーフィルタ用青色着色組成物、並びにそれを用いた高明度、高コントラスト比かつ耐熱性に優れたカラーフィルタを提供すること。【解決手段】 着色剤（Ａ）、バインダー樹脂（Ｂ）、および有機溶剤（Ｃ）を含むカラーフィルタ用着色組成物であって、着色剤（Ａ）が、側鎖にカチオン性基を有する下記一般式（１）で表わされる構造単位を有するビニル系樹脂（ａ１）とアニオン性染料（ａ２）とを反応させて得られた樹脂造塩化合物（Ａ１）と、該樹脂造塩化合物（Ａ１）のピーク波長λｍａｘ１より５〜１００ｎｍ長波長側にピーク波長λｍａｘ２を有し、かつ下記一般式（２）で表わされる着色剤（Ａ２−１）または下記一般式（３）で表わされる着色剤（Ａ２−２）である着色剤（Ａ２）とを含有することを特徴とするカラーフィルタ用着色組成物によって解決される。【選択図】なし