COLORING COMPOSITION CONTAINING SALT-FORMING COMPOUND CONSTITUTED OF CATIONIC XANTHENE DYE AND ORGANIC ANION, COLORING AGENT FOR COLOR FILTER, AND COLOR FILTER

Title:

COLORING COMPOSITION CONTAINING SALT-FORMING COMPOUND CONSTITUTED OF CATIONIC XANTHENE DYE AND ORGANIC ANION, COLORING AGENT FOR COLOR FILTER, AND COLOR FILTER

Document Type and Number:

WIPO Patent Application WO/2019/082593

Kind Code:

A1

Abstract:

This coloring composition: contains a salt-forming compound constituted of a cationic xanthene dye represented by general formula (1) and organic anions; serves as a coloring agent for a color filter having excellent hue adjustability for color gamut expansion; and provides a color filter having excellent chromogenic performance (color gamut, brightness, contrast ratio, and the like).

Inventors:

OHKUMA HIROSHI (JP)
SUZUKI NORITOSHI (JP)
AOKI YOSHIKAZU (JP)

Application Number:

PCT/JP2018/036202

Publication Date:

May 02, 2019

Filing Date:

September 28, 2018

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Assignee:

HODOGAYA CHEMICAL CO LTD (JP)

International Classes:

C09B69/06; C09B11/28; G02B5/20

Domestic Patent References:

WO2012023474A1

2012-02-23

Foreign References:

JP2015163674A	2015-09-10
JP2013047285A	2013-03-07
JP2016102191A	2016-06-02

Attorney, Agent or Firm:

TSUKUNI & ASSOCIATES et al. (JP)

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