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Photosensitive resin composition, display partition wall structure, and display device

A technology of photosensitive resin and composition, applied in the field of photosensitive resin composition, to achieve the effect of blocking blue light

Pending Publication Date: 2020-09-29
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Korean Laid-Open Patent No. 10-2007-0094460 aims to provide a photosensitive resin composition for partition wall formation that is excellent in shape stability against heat, but the actual situation is that, as with the above-mentioned problem, at a film thickness of about 7 μm to 15 μm In the case of forming a partition wall, the problem that the tapered partition wall is not easy to form a straight-tapered cured film, but the partition wall is formed in a reverse-tapered shape cannot be overcome.

Method used

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  • Photosensitive resin composition, display partition wall structure, and display device
  • Photosensitive resin composition, display partition wall structure, and display device
  • Photosensitive resin composition, display partition wall structure, and display device

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0103] Synthesis Example 1: Synthesis of Alkali-Soluble Resin (B-1)

[0104] In a four-necked flask, 235 g of bisphenol fluorene type epoxy monomer represented by the following chemical formula 2-1 (epoxy equivalent 235 g / eq), 110 mg of tetramethylammonium chloride, 2,6-di-tert-butyl - 100 mg of 4-methylphenol and 72.0 g of acrylic acid were dissolved by heating at 90°C to 100°C while blowing air at a rate of 25 ml / min.

[0105] [chemical formula 2-1]

[0106]

[0107] Next, the solution was gradually heated up to 120°C in a cloudy state to dissolve it. At this time, stirring was continued while confirming that the solution gradually became transparent. Heating and stirring were continued for about 12 hours until the acid value was less than 1.0 mgKOH / g. Thereafter, it was cooled to room temperature to obtain a colorless, transparent and solid bisphenol fluorene type epoxy acrylate represented by the following Chemical Formula 1-1.

[0108] [chemical formula 1-1]

[...

Synthetic example 2

[0111] Synthesis Example 2: Synthesis of Alkali-Soluble Resin (B-2)

[0112] Prepare a flask equipped with a stirrer, thermometer, reflux condenser, dropping funnel, and nitrogen inlet. As a monomer dropping funnel, add 3,4-epoxytricyclodecan-8-yl (meth)acrylate and 3,4-epoxytricyclodecan-9-yl (meth)acrylate 40 parts by weight of the mixture mixed at a molar ratio of 50:50, 50 parts by weight of methyl methacrylate, 40 parts by weight of acrylic acid, 70 parts by weight of vinyl toluene, tert-butyl peroxy-2-ethylhexanoate 4 40 parts by weight of propylene glycol monomethyl ether acetate (PGMEA) were prepared while stirring. Here, 6 parts by weight of n-dodecanemercaptan and 24 parts by weight of PGMEA were added to the chain transfer agent dropping tank and prepared by stirring. Then, 395 parts by weight of PGMEA was added to the flask, and the atmosphere in the flask was replaced with nitrogen from air, and then the temperature of the flask was raised to 90° C. while stir...

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Abstract

The invention provides a photosensitive resin composition, a display partition wall structure manufactured from the photosensitive resin composition, and a display device including the display partition wall structure. The photosensitive resin composition for forming a partition wall is characterized by comprising (A) a colorant, (B) an alkali-soluble resin, (C) a polymerizable compound, (D) a photopolymerization initiator and (E) a solvent, the cured film produced from the photosensitive resin composition has a maximum transmittance of less than 10% at a wavelength of 450 nm to 470 nm and a minimum transmittance of 30% or more at a wavelength of 620 nm to 660 nm. The photosensitive resin composition of the present invention provides an effect of effectively blocking blue light while preventing the formation of a reverse taper in a thick film after the formation of a partition wall, thereby facilitating the manufacture of a partition wall having a conformal taper shape that facilitatesthe formation of the partition wall.

Description

technical field [0001] The present invention relates to a photosensitive resin composition, a display partition wall structure manufactured using the photosensitive resin composition, and a display device including the display partition wall structure. Background technique [0002] In general, in a display including a color conversion panel using a blue light source, partition walls are formed between the color conversion pixels in order to achieve light-shielding properties against the blue used as the light source and to prevent color mixing of the color conversion pixels. The conversion efficiency of the color conversion pixel, the thickness of the color conversion pixel and the partition wall are formed with a film thickness of about 7 μm to 15 μm. [0003] If the conventionally used photosensitive resin composition for black matrix (Black Matrix) is used when forming the partition wall of a display including a color conversion panel using a blue light source, the formed...

Claims

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Application Information

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IPC IPC(8): G03F7/033G03F7/027G03F7/004G09F9/30
CPCG03F7/033G03F7/027G03F7/004G09F9/30G02B5/20G02F1/133514G03F7/028G03F7/105
Inventor 朴薛基金勋植安基熏李在乙
Owner DONGWOO FINE CHEM CO LTD
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