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Photosensitive resin composition for color filter and color filter formed thereby

A color filter, photosensitive resin technology, applied in the direction of filter, optics, optomechanical equipment, etc., can solve the problems of poor adhesion, pattern undercut and so on

Inactive Publication Date: 2013-06-19
CHI MEI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Another object of the present invention is to provide a liquid crystal display element, which is equipped with the above-mentioned color filter, so as to improve the undercut and adhesion of the existing photosensitive resin composition, which is easy to cause the pattern formed due to poor sensitivity. Poor and other shortcomings

Method used

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  • Photosensitive resin composition for color filter and color filter formed thereby
  • Photosensitive resin composition for color filter and color filter formed thereby
  • Photosensitive resin composition for color filter and color filter formed thereby

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example A-1

[0090] Synthesis example A-1: ​​Production method of alkali-soluble resin (A-1)

[0091] On a four-necked conical flask with a capacity of 1000 milliliters, a nitrogen inlet, a stirrer, a heater, a condenser tube and a thermometer are arranged, and nitrogen is introduced and the solvent 3-ethoxy ethyl propionate (hereinafter referred to as EEP) 200 parts by weight.

[0092] When the solvent in the four-necked conical flask was stirred, the temperature of the oil bath was raised to 100°C, and then the monomer mixture was mixed as shown in Table 1: 2-methacryloylethoxysuccinate monomer (hereinafter referred to as HOMS) 45 parts by weight, styrene monomer (hereinafter referred to as SM) 40 parts by weight, dicyclopentenyl oxyethyl acrylate (hereinafter referred to as DCPOA) 10 parts by weight and methyl acrylate monomer (hereinafter referred to as MA) 5 parts by weight, Continuously add to the four-necked conical flask, and stir to mix, while raising the oil bath temperature of ...

Embodiment 1

[0098] Use 100 parts by weight (solid content) of alkali-soluble resin (A-1) obtained in the aforementioned synthesis examples, 50 parts by weight of dipentaerythritol hexaacrylate (DPHA, hereinafter referred to as B-2) shown in Table 2, 2-methyl- 1-(4-methylthiophenyl)-2-morpholino-1-propanone (hereinafter referred to as C-1-1) 1 weight part, 1-[9-ethyl-6-(2-methyl Benzoyl)-9H-carbazol-3-yl]-ethanone 1-(O-acetyl oxime) (hereinafter referred to as C-2-1) 3 parts by weight, 4,4'-bis(dimethylamine) di Benzophenone (hereinafter referred to as C-3-1) 6 parts by weight, C.I. Pigment Red 254 (hereinafter referred to as E-1) 20 parts by weight, add solvent ethyl 3-ethoxy propionate (hereinafter referred to as D-1) 500 After the parts by weight are dissolved and mixed with a shaker, the photosensitive resin composition for color filters can be prepared. Table 2 shows the results obtained by measuring the characteristics of the photosensitive resin composition for a color filter by ea...

Embodiment 2 to 16 and comparative example 1 to 6

[0100] Embodiments 2 to 16 and Comparative Examples 1 to 6 use the same operation method as that of the photosensitive resin composition for the color filter of Embodiment 1, the difference is that Embodiments 2 to 16 and Comparative Examples 1 to 6 are The types and amounts of raw materials in the photosensitive resin composition for color filters were changed, and the detailed data and subsequent evaluation results are shown in Table 2 (Examples 1 to 16) and Table 3 (Comparative Examples 1 to 6), respectively.

[0101] Evaluation method

[0102] The aforementioned photosensitive resin composition for color filters and the photosensitive resin layer (or pixel layer) prepared therefrom can perform alkali resistance, undercutting, and adhesion under low-illuminance exposure conditions according to the following steps: , Residue detection to evaluate its effectiveness.

[0103] 1. Alkali resistance:

[0104] Coat the photosensitive resin composition on a 100mm×100mm glass subs...

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Abstract

The invention discloses a photosensitive resin composition for a color filter and color filter formed thereby, comprising alkali soluble resin (A), ethylenic unsaturated group composition (B), Photoinitiator (C), organic solvent (D) and pigment (E). A color filter which has excellent to alkalinity resistant and adherence properties and has no slag and less or no undercutting can be produced by controlling the use quantity of the acetophenone photoinitiator (C-1), oxime photoinitiator (C-2) and benzophenone photoinitiator (C-3) of the photosensitive resin composition for the color filter.

Description

technical field [0001] The present invention relates to a photosensitive resin composition for a color filter of a liquid crystal display and the formed color filter, and in particular to a photosensitive resin composition suitable for a color filter with good sensitivity at low illumination things. Background technique [0002] Color filters have been widely used in color liquid crystal displays, color facsimile machines, color cameras and other applications. With the increasing market demand for office equipment such as color liquid crystal displays, the production technology of color filters is also tending to be diversified. [0003] As we all know, the photosensitive resin composition has been widely used in the process of color filter, and the photosensitive resin composition can be used to form desired color pixels, light-shielding layers, etc. on the substrate. In general, after the coloring pigment is dispersed in the photosensitive resin composition, the photosen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/027G02B5/20G02F1/1335
Inventor 郑仲恩
Owner CHI MEI CORP
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