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Curing colouration composition, color filtering device and liquid crystal display using the color filtering device

A coloring composition, a curable technology, applied in photosensitive materials, instruments, nonlinear optics, etc. for optomechanical equipment, which can solve problems such as performance degradation, insufficient pigment dispersion, and clogging of inkjet nozzles

Active Publication Date: 2008-04-02
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the dispersibility of the pigment used as a colorant is insufficient, and the performance (such as contrast, etc.) of the color filter obtained by using the above-mentioned ink set is deteriorated when used in a panel, and there is also a problem that clogging of the inkjet nozzle is easy to occur.

Method used

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  • Curing colouration composition, color filtering device and liquid crystal display using the color filtering device
  • Curing colouration composition, color filtering device and liquid crystal display using the color filtering device
  • Curing colouration composition, color filtering device and liquid crystal display using the color filtering device

Examples

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Effect test

preparation example Construction

[0561] -Preparation of curable coloring composition-

[0562] The curable coloring composition of the present invention is prepared by mixing a colorant, the acrylic copolymer (alkali-soluble resin) of the present invention, a polymerizable compound, a photopolymerization initiator, and other components used as necessary (preferably together with a solvent), and using Prepared by mixing and dispersing with various mixers or dispersers.

[0563] In addition, the step of mixing and dispersing (mixing and dispersing step) is preferably constituted by kneading and dispersing followed by fine dispersion treatment, and kneading and dispersing may be omitted. In addition, it is preferable that the particle size of the pigment used in the kneading and dispersing steps is made finer by a common salt kneading method or the like. The method of kneading salt is known in Japanese Patent No. 3130217, Japanese Patent Application Publication No. 2003-504480, and the like. In addition, fine-...

Embodiment 1

[0602]

[0603] "1. Preparation of red curable composition"

[0604] The following red composition A was stirred using a homogenizer at 3000 rpm for 1 hour. The resulting mixed solution was subjected to microdispersion treatment for 4 hours using a bead disperser (trade name: Dispermatt, manufactured by Getzmann) using 0.3 mm zirconia beads to obtain a dispersion. In addition, the average particle diameter of a pigment is measured by the usual method by SEM observation.

[0605] - Red Composition A - Dispersion

[0606] Pigment: Pigment Red 254 (average particle size 20nm) 11 parts

[0607] Pigment: Pigment Red 177 (average particle size 18nm) 4 parts

[0608] · Dispersion resin (B-1-3) (structure below) 5 parts

[0609] ・Dispersant (trade name: Disperbyk-161, manufactured by Bicchem Co., Ltd.) 3 parts

[0610] Mixed solvent of methoxybutyl acetate and butyl acetate 3 parts

[0611] Alkali-soluble resin: benzyl methacrylate / methacrylic acid copolymer=75 / 25 [mass ratio]...

Embodiment 2

[0631] "Preparation of Green Curable Composition"

[0632] A dispersion was obtained by replacing the red composition A of Example 1 with the following green composition A.

[0633] -Green Composition A-Dispersion

[0634] Pigment: Pigment Green 36 (average particle size 19nm) 11 parts

[0635] Pigment: Pigment Yellow 150 (average particle size 22nm) 7 parts

[0636] · Dispersion resin (B-1-26) (structure below) 5 parts

[0637] ・Dispersant (trade name: Disperbyk-161, manufactured by Bicchem Co., Ltd., 30%

[0638] 3 parts solution)

[0639] Alkali-soluble resin: benzyl methacrylate / methacrylic acid copolymer

[0640] 4 parts = 75 / 25 [mass ratio] copolymer, propylene glycol monomethyl ether acetate solution (solid content: 50% by mass) with a weight molecular weight Mw: 5000

[0641] ・(B) Solvent for Dispersion Resin Dissolving: 3-ethoxymethyl propionate ...

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Abstract

The invention provides a curing color composition, comprising: colouring agent, dispersion resin, polymerization initiator, polymerized compound and solvent, which is characterized in that the solvent comprises: (A) solvent whose boiling point is 180-280 DEG C under the atmospheric pressure and (B) solvent whose boiling point is 130-170 DEG C under the atmospheric pressure and the solubility parameter is 8.5-10.5. The dispersion resin contains the high molecule compound represented by the general formula (1).

Description

technical field [0001] The present invention relates to a curable coloring composition suitable for preparing a color filter by a slit coating method and an inkjet method, a color filter prepared using the curable coloring composition, and a liquid crystal display device prepared using the color filter. Background technique [0002] In recent years, as the size of the screen of TV etc. has increased, the pixel unit has also become larger, and because it is superior to the photolithography method in terms of production efficiency, it is expected that the preparation of color filters by the inkjet method will be used as a new coloring layer forming method. , a variety of methods have been developed. [0003] In addition, color filters for TV use are required to have high color characteristics such as contrast, and it is necessary to use finer substances such as organic pigments as colorants. [0004] As such a method, a resin composition for an inkjet color filter containing ...

Claims

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Application Information

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IPC IPC(8): G03F7/004G02B5/23G02F1/1335
CPCG03F7/004G03F7/0045G03F7/0047G03F7/028
Inventor 冲田务冈部孝太郎
Owner FUJIFILM CORP
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