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Light conversion resin composition

A resin composition and light conversion technology, which is applied in the field of image display devices and light conversion resin compositions, can solve the problems of quantum dot extinction, complex structure, and decreased brightness of quantum dots, and achieve excellent reliability, simple structure, long-term The effect of excellent reliability

Active Publication Date: 2019-10-22
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned prior art has the following problems: not only is it an optical film with a complex structure such as a barrier layer and a substrate layer other than a light-emitting layer containing quantum dots, but also a decrease in the luminance of quantum dots caused by this, Quantum dot extinction occurs when the film is formed at a very high temperature during the process
In addition, the above-mentioned prior art is processed at a low process temperature in order to process into an optical film form, which has a problem in terms of long-term reliability.

Method used

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  • Light conversion resin composition
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Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0253] Production Example 1: Production of Scattering Particle Dispersion Liquid S1

[0254] Using a bead mill, TiO with a particle size of 100 nm as scattering particles 2 (Huntsman TTO-55 (C)) 70.0 parts by weight, 4.0 parts by weight of DISPERBYK-2001 (manufactured by BYK) as a dispersant, 26 parts by weight of propylene glycol methyl ether acetate as a solvent Mixing / dispersion 12 hours, the scattering particle dispersion S1 was produced.

Synthetic example 1

[0255] Synthesis Example 1: Synthesis of Green Quantum Dots (Q-1)

[0256] Add 0.4 mmol (0.058 g) of indium acetate (0.058 g), 0.6 mmol (0.15 g) of palmitic acid (0.15 g) and 20 mL of 1-octadecene into the reactor, and heat to 120° C. under vacuum. After 1 hour, the atmosphere in the reactor was switched to nitrogen. After heating to 280°C, quickly inject tris(trimethylsilyl)phosphine (TMS 3 P) A mixed solution of 0.2 mmol (58 μL) and 1.0 mL of trioctylphosphine was reacted for 1 minute.

[0257] Next, 2.4 mmol (0.448 g) of zinc acetate, 4.8 mmol of oleic acid, and 20 mL of trioctylamine were added to the reactor, and heated to 120° C. under vacuum. After 1 hour, the atmosphere in the reactor was switched to nitrogen, and the temperature of the reactor was raised to 280°C. 2 mL of the InP core solution synthesized above was added, and next, after adding 4.8 mmol of selenium (Se / TOP) in trioctylphosphine, the final mixture was allowed to react for 2 hours. Adding ethanol ...

Synthetic example 2

[0260] Synthesis Example 2: Synthesis of Red Quantum Dots (Q-2)

[0261] Add 0.2mmol (0.058g) of indium acetate, 0.6mmol (0.15g) of palmitic acid, and 10mL of 1-octadecene into the reactor, and heat to 120°C under vacuum. After 1 hour, the atmosphere in the reactor was switched to nitrogen. After heating to 280°C, quickly inject a mixed solution of 0.1mmol (29uL) of tris(trimethylsilyl)phosphine (TMS3P) and 0.5mL of trioctylphosphine, and react for 20 minutes. Acetone was added to the reaction solution rapidly cooled to room temperature, and the precipitate obtained by centrifugation was dispersed in toluene. The obtained InP semiconductor nanocrystal shows the UV first absorption maximum wavelength of 560-590 nm.

[0262] Add 1.2mmol (0.224g) of zinc acetate, 2.4mmol of oleic acid, and 10mL of trioctylamine into the reactor, and heat to 120°C under vacuum. After 1 hour, the atmosphere in the reactor was switched to nitrogen, and the temperature of the reactor was raised ...

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Abstract

The invention relates to a light conversion resin composition. The composition is characterized in that the composition comprises quantum dots, scattering particles, Cardo-based binder resin, a thermosetting agent, a thiol compound and a solvent, wherein the thermosetting agent contains one or more selected from the group consisting of a polyfunctional alicyclic epoxy resin, a novolac epoxy resin,and a silane-modified epoxy resin, and the equivalent ratio of the thermosetting agent to the thiol compound is 0.1: 0.9 to 0.4: 0.6, thereby achieving excellent brightness and long-term reliability.

Description

technical field [0001] The present invention relates to a light-converting resin composition, a light-converting laminated substrate, and an image display device using the light-converting laminated substrate. Background technique [0002] In a Liquid Crystal Display (LCD) TV that uses a Light Emitting Diode (LED) for a Back Light Unit (BLU), the LED BLU is the part that actually emits light and is the most important part of an LCD TV. one of the parts. [0003] As a method of forming a white LED BLU, generally red (Red, R), green (Green, G) and blue (Blue, B) LED chips are combined to form a white LED BLU, or a blue LED chip is used in combination with A combination of yellow (Yellow, Y) phosphors having an emission wavelength with a wide half-value width renders white. [0004] However, in the case of combining red, green, and blue LED chips, there is a problem of high manufacturing costs due to the number of LED chips and complicated steps. In the case of combining yell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/004G02F1/13357
CPCG03F7/004G02F1/1336G02F1/133614
Inventor 金正植金胄皓申奎澈
Owner DONGWOO FINE CHEM CO LTD