METHOD FOR MANUFACTURING COLORING MATERIAL FOR COLOR FILTER,COLORING MATERIAL FOR COLOR FILTER MANUFACTURED BY THE METHOD AND COLOR FILTER

• Main Authors: OGURA MAYUMI, NOGAMI TAKAYUKI
• Format: Patent
• Language: English
• Published: 18.08.2005
• Edition: 7
• Subjects: APPARATUS SPECIALLY ADAPTED THEREFOR; 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; ELECTROGRAPHY; FREQUENCY-CHANGING; HOLOGRAPHY; MATERIALS THEREFOR; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; 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

PROBLEM TO BE SOLVED: To provide a coloring material for a color filter with which the reconciliation of the high contrast required for the color filter, the requirement characteristics, such as high lightness, and the assurance of stability with lapse of time is achieved. SOLUTION: The method for manufacturing the coloring material for the color filter includes a step (A) of supplying and dispersing a pigment composition containing a pigment, pigment derivative and liquid medium into a wet dispersing machine using media of≤ 0.3 mm diameter in grain size and if necessary, (B) a step of adding and mixing a monomer and/or resin to and/or with a dispersing element of the pigment composition obtained by the step (A). The color filter includes a filter segment formed by using the coloring material for the color filter manufactured by the manufacturing method. COPYRIGHT: (C)2005,JPO&NCIPI