BLUE COLORED COMPOSITION FOR COLOR FILTER, AND COLOR FILTER

PROBLEM TO BE SOLVED: To provide a blue colored composition for color filters using -phthalocyanine pigment particles which are finer than particles produced with a conventional kneader, and satisfying a high contrast ratio required by color filters, and to provide a color filter having a higher con...

Full description

Saved in:
Bibliographic Details
Main Authors OGURA MAYUMI, KOTANI TAKUYA
Format Patent
LanguageEnglish
Published 22.11.2007
Subjects
ADHESIVES
CHEMISTRY
DYES
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
PHYSICS
POLISHES
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To provide a blue colored composition for color filters using -phthalocyanine pigment particles which are finer than particles produced with a conventional kneader, and satisfying a high contrast ratio required by color filters, and to provide a color filter having a higher contrast ratio than a conventional one. SOLUTION: The blue colored composition for color filters contains a pigment carrier comprising a transparent resin, a precursor thereof or a mixture of those and a pigment, wherein the pigment is an -phthalocyanine pigment obtained by kneading a kneaded mixture comprising α-phthalocyanine, -phthalocyanine, a water-soluble inorganic salt and a water-soluble organic solvent by means of a planetary mixer in which a plurality of blades make sun-and-planet motion. The color filter has filter segments formed using the blue colored composition for color filters. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20060133377