Photosensitive coloring composition and method of manufacturing optical filter

Patent metadata

Field	Value
Publication number	US-2020225576-A1
Application number	US-202016826531-A
Country	US
Kind code	A1
Filing date	Mar 23, 2020
Priority date	Sep 29, 2017
Publication date	Jul 16, 2020
Grant date	—

Abstract

Provided is a photosensitive coloring composition with which a pixel having excellent adhesiveness with a support and excellent rectangularity can be formed. In addition, provided is also a method of manufacturing an optical filter including a pixel having excellent adhesiveness with a support and excellent rectangularity. This photosensitive coloring composition is a photosensitive coloring composition for exposure to light having a wavelength of 300 nm or shorter, the photosensitive coloring composition including a coloring material and a curable compound. In a case where a film having a thickness of 0.5 μm after drying is formed using the photosensitive coloring composition, an optical density of the above-described film with respect to light having a wavelength of 248 nm is 1.6 or higher. It is preferable that a content of the coloring material is 50 mass % or higher with respect to a total solid content of the photosensitive coloring composition.

First claim

What is claimed is:

1 . A photosensitive coloring composition comprising:
a coloring material; and a curable compound, wherein the photosensitive coloring composition is used for exposure to light having a wavelength of 300 nm or shorter, and in a case where a film having a thickness of 0.5 μm after drying is formed using the photosensitive coloring composition, an optical density of the film with respect to light having a wavelength of 248 nm is 1.6 or higher.

2 . The photosensitive coloring composition according to claim 1 , wherein a content of the coloring material is 50 mass % or higher with respect to a total solid content of the photosensitive coloring composition.

3 . A photosensitive coloring composition comprising:
a coloring material; and a curable compound, wherein the photosensitive adoring composition is used for exposure to light having a wavelength of 300 nm or shorter, and a content of the coloring material is 50 mass % or higher with respect to a total solid content of the photosensitive coloring composition.

4 . The photosensitive coloring composition according to claim 1 , which is a photosensitive coloring composition for exposure to a KrF ray.

5 . The photosensitive coloring composition according to claim 1 ,
wherein the curable compound includes a polymerizable monomer, and a polymerizable group value of the polymerizable monomer is 10.5 mmol/g or higher.

6 . The photosensitive coloring composition according to claim 5 , further comprising: a photopolymerization initiator.

7 . The photosensitive coloring composition according to claim 6 ,
wherein the photopolymerization initiator is at least one compound selected from an alkylphenone compound, an acylphosphine compound, a benzophenone compound, a thioxanthone compound, a triazine compound, a pinacol compound, or an oxime compound.

8 . The photosensitive coloring composition according to claim 3 ,
wherein the curable compound includes a polymerizable monomer, and a polymerizable group value of the polymerizable monomer is 10.5 mmol/g or higher.

9 . The photosensitive coloring composition according to claim 8 , further comprising: a photopolymerization initiator.

10 . The photosensitive coloring composition according to claim 9 ,
wherein the photopolymerization initiator is at least one compound selected from an alkylphenone compound, an acylphosphine compound, a benzophenone compound, a thioxanthone compound, a triazine compound, a pinacol compound, or an oxime compound.

11 . The photosensitive coloring composition according to claim 1 ,
wherein the coloring material includes a green colorant.

12 . The photosensitive coloring composition according to claim 11 ,
wherein a content of the green colorant is 50 mass % or higher with respect to a total mass of the coloring material.

13 . The photosensitive coloring composition according to claim 3 ,
wherein the coloring material includes a green colorant

14 . The photosensitive coloring composition according to claim 13 ,
wherein a content of the green colorant is 50 mass % or higher with respect to a total mass of the coloring material. 15 . A method of manufacturing an optical filter, the method comprising: forming a photosensitive coloring composition layer having an optical density of 1.6 or higher with respect to light having a wavelength of 248 nm on a support using a photosensitive coloring composition including a coloring material and a curable compound; irradiating the photosensitive coloring composition layer with light having a wavelength of 300 nm or shorter to be exposed in a pattern shape; and forming a pixel by removing a non-exposed portion of the photosensitive coloring composition layer by development. 16 . The method of manufacturing an optical filter according to claim 15 , wherein the exposure step is performed using a KrF scanner exposure device. 17 . The method of manufacturing an optical filter according to claim 15 , wherein the photosensitive coloring composition is the photosensitive coloring composition according to claim 1 .

Assignees

• Fujifilm Corp

Inventors

• Okawara Takahiro
• Nara Yuki

Classifications

• G03F7/105

  having substances, e.g. indicators, for forming visible images · CPC title

• G03F7/0007 Primary

  Filters, e.g. additive colour filters; Components for display devices · CPC title

• G03F7/2004

  characterised by the use of a particular light source, e.g. fluorescent lamps or deep UV light · CPC title

• G03F7/26

  Processing photosensitive materials; Apparatus therefor (G03F7/12 - G03F7/24 take precedence) · CPC title

• G03F7/028

  with photosensitivity-increasing substances, e.g. photoinitiators · CPC title