GREEN COLORING COMPOSITION, PHOTOSENSITIVE GREEN COLORING COMPOSITION, COLOR FILTER, AND LIQUID CRYSTAL DISPLAY DEVICE

• Main Authors: TAKAGI YUDAI, WAKU TOSHIO
• Format: Patent
• Language: English; Japanese
• Published: 20.05.2021
• Subjects: APPARATUS SPECIALLY ADAPTED THEREFOR; CHEMISTRY; CINEMATOGRAPHY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; 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; ELECTROGRAPHY; FREQUENCY-CHANGING; HOLOGRAPHY; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS THEREFOR; METALLURGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; ORIGINALS THEREFOR; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

To provide a green coloring composition that has viscosity suitable for coating and excellent viscosity stability by combinational use of a plurality of resin type dispersants having specific structures and performances, a photosensitive green coloring composition that features quick development, excellent viscosity stability, reduced foreign matter, and excellent solvent resistance, and a color filter and a color liquid crystal display device including a filter segment formed using the photosensitive green coloring composition.SOLUTION: A green coloring composition includes a phthalocyanine pigment (A), resin type dispersants (B), and a binder resin (C). The phthalocyanine pigment includes one or more pigments selected from aluminum phthalocyanine pigment (A1) and zinc halide phthalocyanine pigment (A2). The resin type dispersants include block copolymers of specific structures.SELECTED DRAWING: Figure 1 【課題】特定の構造および性能を有する複数の樹脂型分散剤を併用することにより、塗工に適した粘度を有し、粘度安定性に優れた緑色着色組成物、現像速度が速く、粘度安定性に優れ、異物が少なく、耐溶剤性に優れる感光性緑色着色組成物ならびに、該感光性緑色着色組成物を用いて形成されたフィルタセグメントを備えるカラーフィルタ、カラー液晶表示装置の提供。【解決手段】フタロシアニン顔料（Ａ）と、樹脂型分散剤（Ｂ）と、バインダ樹脂（Ｃ）とを含み、前記フタロシアニン顔料が、アルミニウムフタロシアニン顔料（Ａ１）およびハロゲン化亜鉛フタロシアニン顔料（Ａ２）から選ばれる1つ以上の顔料を含み、かつ、前記樹脂型分散剤が、特定の構造を有するブロック共重合体を含むことを特徴とする緑色着色組成物。【選択図】図１