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

• Main Authors: HIRASA YOSHIYUKI, ABE YUTA, SUZUKI MARI
• Format: Patent
• Language: English; Japanese
• Published: 10.12.2020
• 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

To provide a color filter coloring composition which not only is excellent in fastness such as heat resistance and light fastness, causes little foreign matter in a coating and has good storage stability and good color migration properties, but also has high luminance and allows smaller film thickness in expressing the same color.SOLUTION: An azo pigment comprises a compound represented by a general formula (1) in the figure. (In general formula (1), R1 represents a halogen atom or an optionally substituted alkyl, alkoxyl or aryloxy group; and R2 and R3 each independently represent a hydrogen atom or an optionally substituted alkyl or phenyl group.)SELECTED DRAWING: Figure 1 【課題】耐熱性、耐光性などの堅牢性に優れ、塗膜異物が少なく、保存安定性や移染性が良好であるだけでなく、輝度が高く、同じ色を表現するときに膜厚が薄くなるカラーフィルタ用着色組成物を提供する。【解決手段】一般式（１）で表される化合物からなるアゾ顔料。（一般式（１）中、Ｒ１は、ハロゲン原子、それぞれ置換基を有してもよいアルキル基、アルコキシル基、アリールオキシ基を表す。Ｒ２およびＲ３は、それぞれ独立に、水素原子、それぞれ置換基を有してもよいアルキル基、フェニル基を表す。）【選択図】図１