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Colored photosensitive resin composition and color filter containing the same

A technology of photosensitive resin and composition, applied in optical filters, photosensitive materials for optomechanical equipment, optics, etc., which can solve problems such as difficulty in providing high contrast and inability to use color filters effectively

Active Publication Date: 2015-09-23
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above compositions are difficult to provide high contrast and thus cannot be effectively used in color filters

Method used

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  • Colored photosensitive resin composition and color filter containing the same

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0085] Preparation Example 1: Preparation of Binder Resin

[0086] Prepare a flask equipped with a stirrer, thermometer, reflux condenser, dropper, and nitrogen inlet. Preparation of monomer drops: 74.8g (0.20mol) of benzylmaleimide, 43.2g (0.30mol) of acrylic acid, 118.0g (0.50mol) of vinyl toluene, tert-butyl peroxy-2-ethylhexyl 4 g of acid ester and 40 g of propylene glycol monomethyl ether acetate (PGMEA) were mixed and stirred. Preparation of chain transfer agent drops: 6 g of n-dodecanemercaptan and 24 g of PGMEA were mixed and stirred. Then, 395 g of PGMEA was added to the above-mentioned flask, and the atmosphere of the flask was changed from air to nitrogen, and the temperature of the flask was raised to 90° C. while stirring. Monomer and chain transfer agent are dropped sequentially from the dropper. Each drop was performed for 2 hours while maintaining the temperature at 90°C. After 1 hour, the temperature was raised to 110° C. and held for 3 hours. Then, a mix...

Embodiment 1～5 and comparative example 1～4

[0098] Examples 1-5 and Comparative Examples 1-4: Preparation of Colored Photosensitive Resin Composition and Color Filter

[0099] The colored photosensitive resin composition was prepared by mixing the components in the proportions (unit: weight %) listed in Table 1 below.

[0100] Table 1

[0101]

[0102] Each group in above-mentioned table 1 is as follows:

[0103] G7: Pigment Green 7

[0104] Y185: Pigment yellow 185

[0105] Y129: Pigment Yellow 129

[0106] Y138: Pigment yellow 138

[0107] Y139: Pigment yellow 139

[0108] B: Preparation of the binder resin of Example 1

[0109] C: Dipentaerythritol hexaacrylate (KAYARAD DPHA, Nippon Kayaku)

[0110] D: 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butan-1-one (Irgacure 369, Ciba Specialty Chemical)

[0111] E: Propylene glycol monomethyl ether acetate

[0112] F: Acrylic pigment dispersant (Disper byk-2001, BYK-Chemie)

experiment example 1-1

[0114] Experimental Example 1-1: Evaluation of Brightness, Contrast and Color Intensity

[0115] The colored photosensitive resin compositions prepared in Examples 1-5 and Comparative Examples 1-4 were used to prepare colored layers. Specifically, each colored photosensitive resin composition was applied on a glass substrate by spin coating, and the glass substrate was placed on a hot plate maintained at 100° C. for 3 minutes to form a thin film on the glass substrate. Subsequently, use a 1KW high-pressure mercury lamp containing g, h and i rays at 100mJ / cm 2 Each film was subjected to UV irradiation. No special filters were used.

[0116] Each UV-irradiated film was immersed in a KOH alkaline solution (pH 10.5) as a developer for 2 minutes. After development, the film-coated glass was rinsed with distilled water and dried with nitrogen, followed by heating in an oven at 200° C. for 30 minutes to provide a colored layer having a thickness of 1˜5 μm.

[0117] Each sample wa...

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Abstract

The invention provides a colored photosensitive resin composition, a color filter containing the same and a liquid crystal display device with the color filter. The colored photosensitive resin composition contains a colorant (A), adhesive resin (B), a photopolymerizable compound (C), a photopolymerization initiator (D) and a solvent (E), wherein the colorant (A) contains C. I. pigment green 7, C. I. pigment yellow 185, and C. I. pigment yellow 129. The colored photosensitive resin composition has high contrast and brightness and excellent color intensity and patterning performance.

Description

technical field [0001] The present invention relates to a colored photosensitive resin composition and a color filter comprising the composition. In particular, the present invention provides a colored photosensitive resin composition having high contrast and brightness and excellent Color intensity and pattern formation. Background technique [0002] Color filters are widely used in imaging devices and liquid crystal displays (LCDs), and their applications are expanding. The color filter is generally prepared in the following manner: a colored photosensitive resin composition containing red, green or blue pigments is uniformly coated on a black matrix substrate on which a black pattern is formed, then heated and dried, and the resulting The coated film is exposed and developed, and further heated and hardened if necessary to form pixels of each color, and the above steps are repeated for each color. [0003] Among the properties of a color filter required to provide a hi...

Claims

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Application Information

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IPC IPC(8): G03F7/004G03F7/027G02B5/20G02F1/1335
CPCC09B11/24G02B1/04G02B5/223G02B5/23G03F7/0007G03F7/004G03F7/027G03F7/031G03F7/033
Inventor 申铉哲尹譞珍
Owner DONGWOO FINE CHEM CO LTD
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