US 9,904,166 B2 · Green pigment composition for color filters, and color filter

Abstract

Provided is a green pigment composition which includes a halogenated zinc phthalocyanine pigment and a brominated chlorinated zinc phthalocyanine derivative having a phthalimide skeleton bonded by an alkylene group, and which enables a great enhancement in contrast without decreasing luminance and coloring power, and a color filter including the green pigment composition. The green pigment composition for color filters includes from 0.1 to 10 parts of a halogenated zinc phthalocyanine pigment derivative substituted with a functional group having a phthalimide skeleton bonded by an alkylene group per 100 parts of a halogenated zinc phthalocyanine pigment, in terms of a mass, and a color filter includes the green pigment composition for color filters.

Claims5

Dependent claims

A green pigment composition for color filters comprising:

from 0.1 to 10 parts of a pigment derivative represented by General Formula (1) per 100 parts of a halogenated zinc phthalocyanine pigment, in terms of a mass:
wherein Z1 to Z16 each independently represent a bromine atom, a chlorine atom, a hydrogen atom, or a functional group having a phthalimide skeleton bonded by an alkylene group having 1 to 3 carbon atoms, an average number of bromine atoms in one molecule is 8 to 12, an average number of chlorine atoms is 2 to 5, an average number of substituents of the functional group having a phthalimide skeleton bonded by an alkylene group having 1 to 3 carbon atoms is from 0.1 to 3, and the remainder is hydrogen atoms.

Dependencies are inferred from the claim text.

Facts

Application

15/512,952Filed 16 Feb 2016

Priority

JP 2015-08676721 Apr 2015

Published

US 2017/0299961 A119 Oct 2017

Granted

27 Feb 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

G03F 7/0007
Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor: filters, e.g.…
C09B 47/10
Preparation from other phthalocyanine compounds , e.g. cobaltphthalocyanineamine complex: obtaining compounds having halogen atoms directly bound…
C09B 47/16
Obtaining compounds having alkyl radicals, or alkyl radicals substituted by hetero atoms, bound to the phthalocyanine skeleton: having alkyl…
G02B 5/20
Optical elements other than lenses: filters

Green pigment composition for color filters, and color filter

Life of this patent

Green pigment composition for color filters, and color filter

Life of this patent

Abstract

Claims5