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 obtain

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

Experimental program
Comparison scheme
Effect test

Example Embodiment

[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 (preferably together with a solvent) as needed, and use It is prepared by mixing and dispersing in various mixers or dispersing machines.

[0563] In addition, the step of mixing and dispersing (mixing and dispersing step) is preferably constituted by kneading and dispersion followed by a micro-dispersion treatment, and the kneading and dispersion may be omitted. In addition, the type of pigment used in the kneading and dispersion step is preferably made finer in particle size by a salt kneading method or the like. The method of mixing table salt is known in Patent No. 3130217, JP 2003-504480, etc. In addition, pigments of fine particles formed by an aggregation method can also be ...

Example Embodiment

[0601] [Example 1]

[0602]

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

[0604] The following red composition A was stirred for 1 hour using a homogenizer under the condition of 3000 rpm. The resultant mixed solution was subjected to a micro-dispersion treatment for 4 hours by a bead disperser (trade name: ディスパ一マット, manufactured by GETZMANN) using 0.3 mm zirconia beads to obtain a dispersion. In addition, the average particle diameter of the pigment is measured by a 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] · Dispersing resin (B-1-3) (the following structure) 5 parts

[0609] · Dispersing agent (trade name: Disperbyk-161, manufactured by ビックケミ一社) 3 parts

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

[0611] ·Alkali-soluble resin: benzyl methacrylate / methacryl...

Example Embodiment

[0630] [Example 2]

[0631] "Preparation of green curable composition"

[0632] The red composition A of Example 1 was replaced with the following green composition A to obtain a dispersion.

[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] · Dispersing resin (B-1-26) (the following structure) 5 parts

[0637] · Dispersing agent (trade name: Disperbyk-161, manufactured by ビックケミ一社, 30%

[0638] 3 solutions)

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

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

[0641] ·(B) Solvent for dissolving dispersion resin: Methyl 3-ethoxyprop...

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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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