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Light-blocking resin composition, color filter, and liquid crystal display

A resin composition, light-shielding technology, applied in the directions of optics, filters, optical elements, etc., can solve the problem of inability to achieve developability, resolution, adhesion, developability, resolution, adhesion, linearity, Insufficient improvement of adhesion, etc.

Active Publication Date: 2011-04-06
MITSUBISHI RAYON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the prior art of reducing the content of metal ions is to prevent the voltage retention rate of liquid crystals from decreasing, and developing properties, resolution, and adhesion cannot be achieved only by using the above-mentioned technologies.
In addition, even with the improvement of the photopolymerization initiator in the above-mentioned prior art, there are still insufficient points in the improvement of strict developability, resolution, and adhesiveness, especially linearity and adhesiveness.

Method used

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  • Light-blocking resin composition, color filter, and liquid crystal display
  • Light-blocking resin composition, color filter, and liquid crystal display
  • Light-blocking resin composition, color filter, and liquid crystal display

Examples

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Embodiment

[0280] The present invention will be further described in detail by citing synthesis examples, examples and comparative examples below, but as long as it does not exceed the scope of the present invention, the present invention is not limited to the description of the following examples.

Synthetic example -1

[0282] Synthesis example-1 (preparation of polymer dispersant solution)

[0283] 32 g of a trimer of toluene diisocyanate (manufactured by Mitsubishi Chemical Corporation "Maitec GP750A", resin solid content of 50% by weight, butyl acetate solution) and 0.02 g of dibutyltin dilaurate as a catalyst were mixed with 47 g of propylene glycol monomethyl ether ether. acid ester (PGMEA) for dilution and dissolution. 14.4 g of polyethylene glycol having a methoxy group at one end and a number average molecular weight of 1,000 (manufactured by NOF Co., Ltd. "Unioux M-1000") and 9.6 g of polypropylene glycol with a number average molecular weight of 1,000 ( A mixture of "Sannex PP-1000" manufactured by Sanyo Chemical Industry Co., Ltd.) was further reacted at 70° C. for 3 hours. Next, 1 g of N,N-dimethylamino-1,3-propanediamine was added, and the mixture was further reacted at 40° C. for 1 hour. The amine value of the solution containing the polymer dispersant thus obtained was determ...

Synthetic example -2

[0284] Synthesis Example-2 (Synthesis of Binder Resin)

[0285]Add 300 parts by weight of "XD1000" manufactured by Nippon Kayaku Co., Ltd. (polyglycidyl ether of dicyclopentadiene-phenol polymer, weight average molecular weight is 700, epoxy equivalent is 252), 87 parts by weight of acrylic acid , 0.2 parts by weight of p-methoxyphenol, 5 parts by weight of triphenylphosphine, and 255 parts by weight of PGMEA were stirred at 100° C. until the acid value was 3.0 mg-KOH / g. It took 9 hours to reach the target acid value (acid value 2.5 mg-KOH / g). Next, 145 parts by weight of tetrahydrophthalic anhydride was further added and reacted at 120° C. for 4 hours to obtain a binder resin I having an acid value of 100 mg-KOH / g and a weight average molecular weight of 2600 in terms of polystyrene as measured by GPC. solution.

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Abstract

The invention provides a light blocking resin composition, a color filter and a liquid crystal display device. The light blocking resin composition enables to form a black matrix excellent in developing performance, resolution and adhesion, especially in linearity and adhesion. The light blocking resin composition contains a binder resin, a monomer, a photo-polymerization initiator and a carbon black having an average particle diameter of 8 nm to 65 nm and a DBP oil absorption of not more than 90 ml / 100 g. In addition, the light blocking resin composition contains not more than 20 ppm of potassium ions relative to the total solid content. The color filter of the invention has a pixel formed by using the light blocking resin composition, and the liquid crystal display device has the color filter.

Description

technical field [0001] The present invention relates to a light-shielding resin composition, a color filter, and a liquid crystal display device. More specifically, the present invention relates to a light-shielding resin composition suitable for producing optical color filters used in color televisions, liquid crystal display devices, solid-state imaging devices, cameras, etc., capable of forming black pixels with excellent linearity and adhesion, It also relates to a color filter using the light-shielding resin composition, and a liquid crystal display device having the color filter. Background technique [0002] Color filters usually form black pixels (hereinafter sometimes referred to as "black matrix") on the surface of transparent substrates such as glass and plastic sheets, and then sequentially form red, green, blue, etc. in stripe-like or mosaic-like color patterns. More than 3 different colored pixels to form. [0003] Depending on the application of the color fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L101/00C09D7/12C09D17/00G02B5/20G02F1/1335
CPCG02B5/201G02F1/133512C09D7/1266C08K3/04C09D7/1216C09D7/48C09D7/67C08L101/00C09D7/61
Inventor 鸣户俊也水上润二
Owner MITSUBISHI RAYON CO LTD