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Colored composition, color filter, and method for production of the color filter

一种着色组合物、制造方法的技术，应用在仪器、滤光片、图纹面的照相制版工艺等方向，能够解决光聚合引发剂昂贵、阻碍感光性着色组合物固化、运送或成本不利等问题

Inactive Publication Date: 2009-12-02
TOPPAN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In addition, if the amount of pigments such as pigments is increased in order to improve color reproduction characteristics and light-shielding properties, it will hinder the curing of the photosensitive coloring composition.
Therefore, countermeasures such as increasing the amount of photopolymerization initiator or adding a sensitizer are required, but the photopolymerization initiator is a very expensive material, so how to reduce the amount of its usage and reduce the cost becomes a problem
[0011] In addition, the photopolymerization initiator is different for each color of the photosensitive coloring composition, which is disadvantageous in terms of shipping or cost

Method used

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  • Colored composition, color filter, and method for production of the color filter
  • Colored composition, color filter, and method for production of the color filter
  • Colored composition, color filter, and method for production of the color filter

Examples

Experimental program
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preparation example Construction

[0096] (Preparation of Coloring Composition)

[0097] The coloring composition can be prepared by finely grinding the pigment and, if necessary, the above-mentioned pigment dispersant using various dispersing means such as a three-roll mill, a two-roll mill, a sand mill, a kneader, and an ultrafine pulverizer. After dispersing in a monomer having an ethylenically unsaturated double bond, and if necessary, a transparent resin and an organic solvent, a photopolymerization initiator is added. Moreover, you may manufacture the coloring composition for color filters containing two or more types of pigments after finely dispersing each pigment in monomer etc. which have an ethylenically unsaturated double bond, respectively, and mixing.

[0098] The coloring composition preferably removes coarse particles of 5 μm or larger, preferably 1 μm or larger, more preferably 0.5 μm or larger coarse particles and mixed dust by means of centrifugation, sintered filter, membrane filter, and the...

Embodiment 1～22、 comparative example 1-4

[0149] After the mixture of the formulations shown in the following tables 4, 5, and 6 containing the previously prepared pigment dispersions R-1, G-1, B-1, and BM-1 shown in the above table 1 was uniformly stirred and mixed, the Filter through a 1 μm filter to obtain coloring compositions of various colors.

[0150] The formulations of the coloring compositions of each color are shown in Table 2 below. In addition, the following Table 3 shows the molar absorptivity (ε 308 ) and molar absorptivity at 365nm (ε 365 ).

[0151]

[0152] Pigment dispersion: previously prepared pigment dispersion

[0153] Acrylic resin solution: previously prepared acrylic resin solution 1

[0154] Photopolymerization initiator: substances shown in Table 3 below

[0155] Monomer 1: dipentaerythritol hexaacrylate

[0156] ("ARONIX M-402" manufactured by Toagosei Co., Ltd.)

[0157] Monomer 2: Multifunctional acrylate containing carboxyl groups

[0158] ("TO-1382" manufactured by Toagosei ...

Embodiment 8

[0201] What embodiment 8 used is the molar absorptivity (ε) under 308nm 308 ) is less than the molar absorptivity at 365nm (ε 365 ) of the photopolymerization initiator 7, but there are parts where the linearity is poor locally, and the film reduction rate is also slightly deteriorated, but it is to the extent that it does not affect the use.

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Abstract

Disclosed is a method for producing a color filter comprising the steps of: forming a colored coating film on a substrate by using a colored composition comprising a pigment, a monomer having an ethylenically unsaturated double bond and a photopolymerization initiator; irradiating a filter segment or an area to be served as a black matrix on the colored coating film with an excimer laser having a wavelength of 308 nm (XeCL) so that the integrated exposure amount becomes 1 to 150 mJ / cm, thereby curing the filter segment or the part; removing an uncured area on the colored coating film to form the filter segment or the black matrix; and repeating the aforementioned steps several times to form a filter segment having at least two colors and / or a black matrix. Also disclosed is a colored composition comprising a pigment, a monomer having an ethylenically unsaturated double bond and a photopolymerization initiator, which is intended to be used for the production of the color filter.

Description

technical field [0001] This invention relates to the coloring composition used for manufacture of the color filter used for a color liquid crystal display device, a color pickup element, etc., the color filter using this coloring composition, and its manufacturing method. Background technique [0002] The filter segment or black matrix constituting the color filter used in a color liquid crystal display device or a color pickup tube element is formed by coating a photosensitive material on a glass substrate, etc., and drying to remove the remaining solvent. , through a photomask used to form pixels, irradiate active energy rays by proximity exposure (ultraviolet light source exposure), etc. to cure (negative type), or increase alkali solubility (positive type), remove and dissolve with an alkaline solution, etc. part. The above operation was repeated for each color, thereby producing a color filter. [0003] In recent years, color liquid crystal display devices have formed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/20C09B67/20G03F7/004G03F7/027G03F7/028G03F7/033
CPCG02B5/223G03F7/031C09B67/0065G03F7/105G03F7/0007Y10T428/24479G02B5/201G03F7/004G03F7/0045G03F7/027G03F7/028
Inventor 重森勋宫村护嗣和久寿男饭田裕介砂原建朗松井浩平池田武司田中英世青木英士原田元气
Owner TOPPAN INC
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