Title:
【発明の名称】カラーフイルター用着色組成物、カラーフイルターの製造方法及びカラーフイルター
Document Type and Number:
Japanese Patent JP2819512
Kind Code:
B2
Abstract:
PURPOSE:To form the black matrix of the color filters having high accuracy and excellent light shieldability by using a black dyestuff consisting of an azo dyestuff having a specific compsn. CONSTITUTION:The azo dyestuff having the residual group expressed by a general formula I (where Ar is the residual of an arom. or heterocyclc compd., X is a hydrogen atom or halogen atom; m is >=1 integer) is used as the black dyestuff forming the black matrix on a substrate for the color filters. The prescribed black matrix is formed by a known printing method using this black dyestuff. This azo black dyestuff does not hinder the photosetting property of a photosensitive resin even when compounded therewith; even more, the black dyestuff withstands a heat treatment and, therefore, the color filter having the excellent heat resistance and weatherability at the time of use is obtd.
Inventors:
Shigeru Sakamoto
Keiji Nakajima
Nakamura Michie
Keiji Nakajima
Nakamura Michie
Application Number:
JP3632189A
Publication Date:
October 30, 1998
Filing Date:
February 17, 1989
Export Citation:
Assignee:
Dainichi Seika Kogyo Co., Ltd.
International Classes:
G02B5/20; C09B29/09; C09B35/039; G02B5/22; H04N9/07; (IPC1-7): G02B5/20; C09B29/09; C09B35/039; G02B5/22; H04N9/07
Domestic Patent References:
| JP6230202A | ||||
| JP63220203A | ||||
| JP63253302A | ||||
| JP6232149A |
Attorney, Agent or Firm:
Yoshida Katsuhiro