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Quantum dot dispersion liquid used for ink-jet printing and color film

A technology of inkjet printing and quantum dots, applied in ink, applications, household appliances, etc., can solve the problems of quantum dot materials such as high heat resistance, acid and alkali resistance, high consumption of quantum dots, waste of materials, etc., to achieve increased Water and oxygen barrier ability, smooth inkjet printing, and high brightness

Active Publication Date: 2019-05-24
SUZHOU XINGSHUO NANOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Quantum dot color film is usually prepared by using quantum dot photoresist, but this method requires high heat resistance, acid and alkali resistance of the quantum dot material itself, and the photoresist The method of engraving will consume a large amount of quantum dots, resulting in material waste and high cost

Method used

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  • Quantum dot dispersion liquid used for ink-jet printing and color film

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]A kind of quantum dot dispersion liquid, accounts for the percentage of described quantum dot dispersion liquid by each component, comprises the CdSe red light quantum dot of 20wt%, the surface ligand of quantum dot is oleic acid (the content that ligand accounts for quantum dot is 17wt%) %), 10wt% fluorine-containing acrylic resin, 68wt% hexafluorobutyl methacrylate, 2wt% (2,4,6-trimethylbenzoyl) diphenylphosphine oxide (TOP) initiator . The above-mentioned quantum dot dispersion liquid can be prepared by simple mechanical stirring and mixing of various components. After testing, the viscosity of the quantum dot dispersion is 5.2cps.

[0031] The above-mentioned quantum dot dispersion liquid is used for inkjet printing, the process is smooth, and the quantum dot color film is obtained through ultraviolet light curing. The luminous photo of the quantum dot color film is as follows figure 1 shown.

Embodiment 2

[0033] A kind of quantum dot dispersion liquid, accounts for the percentage of described quantum dot dispersion liquid by each component, comprises the CdSeS red light quantum dot of 20wt%, the surface ligand of quantum dot is oleylamine (the content that ligand accounts for quantum dot is 19wt%) %), 20wt% fluorine-containing polyurethane resin, 58wt% perfluoroallyl vinyl ether, 2wt% TPO initiator. The above-mentioned quantum dot dispersion liquid can be prepared by simple mechanical stirring and mixing of various components. After testing, the viscosity of the quantum dot dispersion is 5.5 cps.

[0034] The above-mentioned quantum dot dispersion liquid is used for inkjet printing, the process is smooth, and the quantum dot color film is obtained through ultraviolet light curing.

Embodiment 3

[0036] A kind of quantum dot dispersion liquid, accounts for the percentage of described quantum dot dispersion liquid by each component, comprises the CdSe green light quantum dot of 35wt%, the surface ligand of quantum dot is trioctyl mercaptan (part accounts for quantum dot Content is 14wt%), 30wt% of fluorine-containing epoxy resin, 30wt% of isobornyl methacrylate, 5wt% of TPO initiator. The above-mentioned quantum dot dispersion liquid can be prepared by simple mechanical stirring and mixing of various components. After testing, the viscosity of the quantum dot dispersion is 6.7cps.

[0037] The above-mentioned quantum dot dispersion liquid is used for inkjet printing, the process is smooth, and the quantum dot color film is obtained through ultraviolet light curing.

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Abstract

The invention discloses quantum dot dispersion liquid used for ink-jet printing and a color film. The quantum dot dispersion liquid comprises 10-40 wt% of quantum dots, 10-30 wt% of fluororesin, 30-70wt% of a reactive diluent and 0.5-5 wt% of an initiator, wherein the viscosity of the quantum dot dispersion liquid is 1-20 cps. The quantum dot dispersion liquid meets the demands of ink-jet printing, and the obtained quantum dot color film is high in luminous brightness and photoconversion efficiency, and shows excellent optical properties.

Description

technical field [0001] The application belongs to the technical field of quantum dot materials, and in particular relates to a quantum dot dispersion liquid and a color film for inkjet printing. Background technique [0002] Quantum dot materials have been widely used in the field of display lighting due to their excellent properties such as narrow half-peak width, high luminous purity, and adjustable emission wavelength with size. When quantum dots are used as the light conversion material of the color filter of LCD (Liquid Crystal Display, liquid crystal display), the color gamut of the display and the utilization efficiency of the backlight can be significantly improved. [0003] Quantum dot color film is usually prepared by using quantum dot photoresist, but this method has high requirements on the heat resistance and acid and alkali resistance of the quantum dot material itself, and the photolithography method will consume a large amount of quantum dots, resulting in wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/38
Inventor 方龙邓德晖史横舟王允军
Owner SUZHOU XINGSHUO NANOTECH CO LTD
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