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A fluorescent dye dispersion, a spontaneous-emission photosensitive resin composition and a preparation method thereof, a color conversion color filter and a display device including the same

A fluorescent dye, color conversion technology, applied in optomechanical equipment, photosensitive materials for optomechanical equipment, organic dyes, etc., can solve problems such as difficulty in using dyes

Active Publication Date: 2017-03-01
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when the solubility is low, it is difficult to use the dye used in the color conversion layer even when the fluorescence efficiency is excellent
Specifically, many dyes are soluble only in solvents such as NMP, DMSO, and water, etc., which are difficult to be used in practical processes due to environmental harmful reasons, etc., and there are many limitations in using dyes even when fluorescence efficiency is favorable

Method used

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  • A fluorescent dye dispersion, a spontaneous-emission photosensitive resin composition and a preparation method thereof, a color conversion color filter and a display device including the same
  • A fluorescent dye dispersion, a spontaneous-emission photosensitive resin composition and a preparation method thereof, a color conversion color filter and a display device including the same
  • A fluorescent dye dispersion, a spontaneous-emission photosensitive resin composition and a preparation method thereof, a color conversion color filter and a display device including the same

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0185] Synthesis example 1. Synthesis of alkali-soluble resin (B-1)

[0186] A flask with a stirrer, a thermostat, a dropping set and a nitrogen introduction tube was prepared, meanwhile, by introducing, stirring and mixing 74.8 g (0.20 mol) of maleimide, 43.2 g (0.30 mol) of acrylic acid, 118.0 g ( 0.50mol) vinyl toluene, 4g tert-butyl peroxy-2-ethylhexanoate and 40g propylene glycol monomethyl ether acetate (PGMEA) to prepare the monomer drop kit, and by introducing, stirring and mixing 6g n-dodecanediol and 24g PGMEA to prepare the chain transfer agent dropping kit. Then, 395 g of PGMEA was introduced into the flask, and after the atmosphere in the flask was replaced from air to nitrogen, the temperature of the flask was raised to 90° C. while stirring. Subsequently, the monomer and chain transfer agent are started to be added dropwise from the dropping kit. The dropping was carried out for two hours each while keeping the temperature at 90° C., and after one hour, the t...

Synthetic example 2

[0197] Synthesis Example 2. Synthesis of Fluorescent Dye Dispersion (A1) for Color Conversion Layer

[0198] Fluorescent dye (A1): Lumajin Yellow 0830.48 parts by weight

[0199] Extender pigment (A2): 2.88 parts by weight of barium sulfate

[0200] Acrylic dispersant [Disperbyk (registered trademark) 2000: manufactured by BYK-Chemie Japan] 3.84 parts by weight

[0201] Polymer resin B-1 (resin of synthesis example 1) 2.88 parts by weight

[0202] Solvent 1: 55.04 parts by weight of propylene glycol monomethyl ether acetate

[0203] Solvent 2: 5.76 parts by weight of 4-hydroxy-4-methyl-2-pentanone

[0204] 360 parts by weight of zirconia beads with a diameter of 0.2 mm

[0205] The composition was introduced into a salad dressing bottle having a volume of 140 ml, and the resultant was mixed at 60° C. for 10 hours using a paint conditioner to be dispersed. Then, the zirconia beads were removed and the resultant was filtered with a membrane filter having a pore diameter o...

Synthetic example 3

[0206] Synthesis Example 3. Synthesis of Fluorescent Dye Dispersion Liquid (A2) for Color Conversion Layer

[0207] Fluorescent dye dispersion A2 was obtained using the same method as that of fluorescent dye dispersion A1 of Synthesis Example 2, except that coumarin 6 was used as the fluorescent dye.

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Abstract

The present disclosure relates to a fluorescent dye dispersion for use in a color conversion layer, a spontaneous-emission photosensitive resin composition for use in the color conversion layer prepared therewith, a method for manufacturing the same, a color conversion color filter produced therefrom and a display device for color conversion color filter.

Description

technical field [0001] The present disclosure relates to a fluorescent dye dispersion liquid for a color conversion layer, a self-emitting photosensitive resin composition, and a color conversion color filter prepared using the same. Background technique [0002] The display industry has recently undergone earth-shaking changes from CRTs to flat panel displays represented by PDPs, OLEDs, LCDs, and the like. Among these, LCDs have been widely used in almost all industries as image display devices, and their applications have been expanding. However, a separate backlight unit is necessary in LCDs because of the lack of its own light emitting device. [0003] Pigment- or dye-based colored filters used for color expression in existing liquid crystal display devices use properties of absorbing and transmitting light in a specific area of ​​a backlight unit, and have a problem of rapid drop in transmission efficiency of the illuminated backlight unit. Therefore, in related indus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/40G02F1/1335G03F7/004G03F7/027
CPCG02F1/133514G03F7/004G03F7/027C09B67/0084
Inventor 吴龙虎朴廷烋
Owner DONGWOO FINE CHEM CO LTD
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