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Colored Photosensitive Resin Composition

A technology of photosensitive resin and composition, which is applied in optics, optical filters, optical mechanical equipment, etc., can solve problems that have not been raised, and achieve delamination suppression, high contrast ratio and light transmittance, suppression of impurities and Effect of Change in Viscosity

Active Publication Date: 2014-08-06
DONGWOO FINE CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Korean Patent Laid-Open Application 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

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preparation example Construction

[0064] An embodiment of the production method of the alkali-soluble resin will be described below.

[0065] 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.

[0066] The above-mentioned solvent used herein can be any common solvent used for free radical polymerization, for example, it includes: selected from tetrahydrofuran, dioxane, dimethyl ethyl glycol, dimethyl ethyl diethylene glycol Alcohol, 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...

Embodiment 1

[0143] The colored photosensitive resin composition was prepared as follows: 39.8 parts of the colorant dispersion in Preparation Example 1, 11.1 parts of the synthetic resin in Synthesis Example 1, 3.7 parts of KAYARAD DPHA (manufactured by Nippon Chemical Co.), 0.8 parts of TR-PBG-305 (manufactured by TRONLY company), 34.6 parts of propylene glycol monomethyl ether acetate, and 10.0 parts of 4-hydroxy-4-methyl-2-pentanone.

Embodiment 2

[0145] The colored photosensitive resin composition was prepared as follows: 39.8 parts of the colorant dispersion in Preparation Example 1, 11.1 parts of the synthetic resin in Synthesis Example 1, 3.7 parts of KAYARAD DPHA (manufactured by Nippon Chemical Co.), 0.8 parts Parts of TR-PBG-305 (manufactured by TRONLY Corporation), 19.6 parts of propylene glycol monomethyl ether acetate, and 25 parts of 4-hydroxy-4-methyl-2-pentanone.

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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 red coloring agent includes red pigment and xanthene dye indicated by structural formula 1. The alkaili soluble resin has an acid value of 30mg KOH / g to 170mg KOH / g. The photopolymerisable compound includes a compound indicated by structural formula 2. Besides, the solvent includes propylene glycol monomethyl ether and 4-hydroxy-4-methyl-2-pentanone. Thus, the composition has high developing rate and excellent inhibition of photosensitivity and adherence of pattern in a developing period and has storage stability with no decrease in photosensitivity and no increase in adherence. 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 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; exposing and developing the coating; and for each Each color is optionally further heated and cured (often referred to as "calcining") to form individual colored pixels. [0003] The colorant used for coloring the photosensitive resin compositio...

Claims

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Application Information

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IPC IPC(8): G03F7/027G03F7/004G02B5/20G02F1/1335
CPCG02B5/20G02F1/13G03F7/004G03F7/0045G03F7/028G03F7/20G03F7/2002
Inventor 金奉奎申奎澈
Owner DONGWOO FINE CHEM CO LTD
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