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Quantum dot packaging body and application thereof

A technology of quantum dots and encapsulation, applied in semiconductor devices, manipulating single atoms, nanotechnology for materials and surface science, etc., can solve the problems of fragile glass tubes, reduced optical performance of quantum dots, and easy damage, etc., to achieve Easy to prepare, good water and oxygen barrier performance, and achieve the effect of encapsulation

Inactive Publication Date: 2016-05-11
SUZHOU XINGSHUO NANOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when glass is used as the packaging material, the glass is generally made into a long tube and placed on the light-incident side of the light guide plate. However, the long glass tube is fragile, making it easy to damage during preparation, storage, transportation, and installation.
In addition, glass tubes or polymer packaging materials used in the prior art often need to add a diffusing agent, which easily leads to the reduction of the original optical properties of quantum dots

Method used

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  • Quantum dot packaging body and application thereof
  • Quantum dot packaging body and application thereof
  • Quantum dot packaging body and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0043] The preparation process of the tubular quantum dot glass body 3 mainly includes injecting, pouring or inhaling the second encapsulation medium before polymerization dispersed with quantum dots into the glass tube, and making the second encapsulation medium before polymerization by ultraviolet irradiation, heating or other means The packaging medium is polymerized and solidified, and the glass tube is sealed. The way of sealing includes using sealant or glass sintering. The sealant is preferably silicone rubber. In a specific embodiment, a part of the sealant is in the glass tube, thereby blocking the glass tube opening, such as image 3 shown. In a specific embodiment, the sealant completely wraps the glass nozzle, such as Figure 4 shown. In a specific embodiment, the glass of the glass nozzle is softened and reshaped by sintering to form a closed structure, such as Figure 5 shown. Of course, since the present invention also uses the first packaging medium 2, th...

Embodiment 1

[0060] Mix the quantum dots prepared in the oil phase with the shadowless glue, and rotate to evaporate the solvent to form a quantum dot dispersion; take 10 glass tubes with a cross-sectional outer diameter of 0.5 mm, an inner diameter of 0.3 mm, and a length of 20 cm, and pour them into the Inject the quantum dot dispersion. The injection method is as follows: put the quantum dot dispersion liquid in a brown bottle filled with argon gas sealed with a rubber stopper, insert the glass tube below the liquid level, and pressurize the brown bottle by introducing argon gas to form a pressure difference inside and outside the brown bottle. Aspirate the quantum dot dispersion into the glass tube. After the capillary is filled with quantum dot dispersion, put the glass tube under a UV lamp to cure. Both ends of the cured capillary were sealed with sealant under argon atmosphere. Disperse the cured glass tube in parallel in liquid shadowless glue, and cure it with ultraviolet light ...

Embodiment 2

[0062]Mix the quantum dots prepared in the oil phase with the shadowless glue, and rotate to evaporate the solvent to form a quantum dot dispersion; take 10 glass tubes with a cross-sectional outer diameter of 0.5 mm, an inner diameter of 0.3 mm, and a length of 20 cm, and pour them into the Inject the quantum dot dispersion and cure with UV light. The injection method is the same as in Example 1. The above glass was photocut into glass tubules with a length of 1 cm by laser cutting. Arrange the small glass tubes with red light quantum dots and the glass pavilions with green light quantum dots in parallel according to the quantity ratio of 1:2, and the red and green alternate, and add shadowless glue and cure by ultraviolet light to form multiple tubes with a length of 1 cm and a width of Quantum dot package A2 with a height of 3 mm and a height of 0.5 mm.

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Abstract

The present invention discloses a quantum dot packaging body which comprises a first packaging medium which is optically transparent and at least two quantum dot glass bodies dispersed in the first packaging medium. Each quantum dot glass body comprises glass located at the outer layer, a second packaging medium which is optically transparent and located at the inner layer, and at least one type of quantum dots dispersed in the second packaging medium. The first packaging medium consists of high polymer materials. By packaging the packaging body quantum dots in the glass body with a certain volume, the fragile disadvantages of glass tubes are avoided, and at the same time, a relative high luminous efficiency is kept. The present invention also discloses a light-emitting device, a backlight module and a display device. The present invention also discloses a preparation method of the quantum dot packaging body.

Description

technical field [0001] The invention relates to a quantum dot packaging body and a preparation method thereof. The present invention also relates to an illuminating device, a backlight module and a display device prepared by using the quantum dot package. Background technique [0002] Quantum dots are a series of nanoparticles that are fluorescent. Typical quantum dots are called quantum dots, which are materials generally in the range of 1-20 nanometers and have a crystalline structure. Quantum dots have size-tunable optical properties, high quantum efficiency, relatively narrow half-width, and resistance to photodegradation. As a new generation of luminescent materials, quantum dots are being used in LED displays. The quantum dot material can effectively improve the color gamut of the backlight module by absorbing blue light in some bands and excite green light and red light in some bands to meet the needs of high color gamut LCD TVs. Compared with the existing phospho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B82B1/00B82B3/00B82Y30/00B82Y40/00G02F1/13357H01L33/56
CPCB82B1/00B82B3/009B82Y30/00B82Y40/00G02F1/1336G02F1/133602H01L33/56
Inventor 王允军席玉坤
Owner SUZHOU XINGSHUO NANOTECH CO LTD
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