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Colored Photosensitive Resin Composition

A technology of photosensitive resin and composition, applied in optics, filters, optical elements, etc., can solve the problems of not being raised, and achieve the effect of suppressing pattern delamination, high brightness and contrast, and small color change

Active Publication Date: 2014-08-06
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Korean Patent Application Publication No. 2012-112188 discloses a red composition for a color filter, and a color filter including the same, however, it does not propose any alternative to overcome the foregoing problems

Method used

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  • Colored Photosensitive Resin Composition
  • Colored Photosensitive Resin Composition
  • Colored Photosensitive Resin Composition

Examples

Experimental program
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Effect test

preparation example Construction

[0056] An embodiment of the production method of the alkali-soluble resin will be described below.

[0057]Add the aforementioned monomer, the solvent relative to the monomer content of 0.5 to 20 times, and the polymerization initiator relative to the molar amount of the monomer of 0.1% to 10% to be equipped with a stirrer, a thermometer, a reflux cooling pipe, a titration device and Nitrogen was introduced into the flask in line and subsequently replaced with nitrogen. Then, it was stirred at 40°C to 140°C for 1 hour to 10 hours.

[0058] The above-mentioned solvent used herein can be any common solvent used for radical polymerization, for example, it includes: selected from tetrahydrofuran, dioxane, ethylene glycol dimethyl ethyl, diethylene glycol dimethyl ethyl base, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, ethyl acetate, butyl acetate, propylene glycol monomethyl ethyl acetate, 3-methoxybutyl acetate, methanol, Any of ethanol, propanol, n-but...

preparation example

[0125] Preparation Example – Preparation of Colorant Dispersion

[0126] A red colorant dispersion was prepared as follows: 14 parts by weight of C.I. Pigment Red 254, 6 parts by weight of AJISPER PB821 (manufactured by AJINOMOTO FineTechno Co., Ltd.) as a dispersant were mixed and dispersed by a bead mill, and 60 parts by weight of A solvent of propylene glycol monomethyl ether acetate and 20 parts by weight of cyclohexanone for 12 hours.

Synthetic example

[0127] Synthesis Example – Synthesis of Alkali Soluble Resin

[0128] (1) Synthesis Example 1

[0129] 120 parts of propylene glycol monomethyl ether acetate, 80 parts of propylene glycol monomethyl ether, 2 parts of azobisisobutyronitrile (AIBN), 13.0 parts of acrylic acid, 10 parts of benzyl methacrylate, 57.0 parts of 4-methylstyrene, 20 parts of methyl methacrylate and 3 parts of n-dodecylmercaptan were introduced into a flask equipped with a stirrer, a thermometer, a reflux cooling tube, a titration device, and a nitrogen introduction line, and the air in the flask was replaced with nitrogen. A reaction was then performed for 6 hours while raising the temperature to 110° C. and stirring. The synthesized alkali-soluble resin had an acid value of 100.2 mg KOH / g (solid content) and a weight average molecular weight Mw of about 15,110 as measured by gel permeation chromatography (GPC).

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Abstract

The invention discloses a colored photosensitive resin composition including a red coloring agent, an alkali soluble resin, photopolymerisable compound, a polymerization trigger and a solvent. The alkali soluble resin has an acid value of 30mg KOH / g TO 170mg KOH / g. The antioxidant includes antioxidant functional group based on phenol and antioxidant functional group based on phosphor or antioxidant functional group based on phenol and the antioxidant functional group based on sulphur. The polymerization trigger includes compound indicated by a formula 1. Since the composition has high developing rate and excellent photosensitivity and bonding performance, so that pattern layering can be inhibited in a developing process. Therefore, a color filter made from the photopolymerisable compound can have extremely high comparison and light transmittence.

Description

technical field [0001] The present invention relates to a colored photosensitive resin composition. Background technique [0002] Color filters are widely used in imaging devices, for example, so-called Charge Coupled Devices (CCDs), Liquid Crystal Displays (LCDs), etc., and the range of applications of the color filters has rapidly expanded. Color filters used in color LCDs or CCDs are generally manufactured by repeating the process of uniformly applying a colored photosensitive resin composition onto a substrate having a patterned black matrix thereon, the The composition includes pigments corresponding to red, green, and blue, respectively; heating and drying (often referred to as "pre-calcination") the substrate to form a coating film; exposing and developing the coating film; and for each color, Optionally further heating and curing (often referred to as "post-calcination") to form pixels of various colors. [0003] In recent years, due to improvements in quality and ...

Claims

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Application Information

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IPC IPC(8): G03F7/004G03F7/027G02B5/20G02B1/04G02F1/1335
CPCG02B5/20G02F1/13G03F7/004G03F7/0045G03F7/028G03F7/20G03F7/2002
Inventor 安大熙申泳璨
Owner DONGWOO FINE CHEM CO LTD
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