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Quantum dot light-cured glue, preparation method thereof and display device

A technology of light-curing glue and light-curing glue, which is applied in the field of quantum dots, can solve the problems of poor performance and structural defects of quantum dots, and achieve the effects of no graininess, reducing damage, and overcoming limitations

Pending Publication Date: 2022-02-18
RAYSOLVE OPTOELECTRONICS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above technical problems, the present invention provides a quantum dot photocurable glue, its preparation method, and a display device to solve the problem in the prior art that the replacement of ligands in the traditional liquid phase leads to poor performance of quantum dots and even structural defects.

Method used

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  • Quantum dot light-cured glue, preparation method thereof and display device
  • Quantum dot light-cured glue, preparation method thereof and display device
  • Quantum dot light-cured glue, preparation method thereof and display device

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preparation example Construction

[0040] See figure 1 , figure 1 It is a flow chart of the steps of the preparation method of quantum dot photocurable glue according to an embodiment of the present invention. The present invention provides a kind of preparation method of quantum dot photocurable glue, and described preparation method comprises the following steps:

[0041] Step S1, mixing the quantum dots, the light diffusing agent, the functional polymer, and the photocurable glue solvent to form a first mixed solution;

[0042] Step S2, performing ball milling or sand milling on the first mixed solution under light-proof conditions to obtain a second mixed solution, wherein in the second mixed solution, the quantum dots are coated with the functional polymer; Wherein, the ball milling speed of the above-mentioned ball mill is 500~1500r / min, and the ball milling time is 10min~5h; that is to say, the outside of each quantum dot is coated with a functional polymer, and the functional polymer is soluble in pro...

Embodiment 1

[0080] First, take 1 g of green Cd-based quantum dots in the toluene system, add acetone (acetone:toluene=2:1), centrifuge the obtained product, and remove the supernatant to obtain solid precipitates of quantum dots. The quantum dot solid precipitate is vacuum freeze-dried to remove the residual low boiling point reagent on the surface to obtain the quantum dot powder. Then add the quantum dot powder to triethyl phosphite 0.3g, titanium dioxide 0.1g, PGMEA solvent 7ml to mix, and carry out ball milling, ball milling speed 1000r / min, ball milling time 3h, after the end, mix the obtained mixture with 2ml of UV glue ( UV-curable glue) mixed to obtain quantum dot light-curable glue No. 1.

Embodiment 2

[0082] First, take 1 g of red Cd-based quantum dots in the toluene system, add acetone (acetone: toluene = 2:1), and remove the supernatant to obtain solid precipitates of quantum dots. The quantum dot solid precipitate is vacuum freeze-dried to remove the residual low boiling point reagent on the surface to obtain the quantum dot powder. Then the quantum dot powder is added to isooctyl phosphate 0.4g, titanium dioxide 0.15g, PGMEA solvent 4ml to mix, and carry out ball milling, ball milling speed 1000r / min, ball milling time 3h, after the end, the mixture obtained is mixed with 1mlUV glue to obtain Quantum dot photocurable glue No. 2.

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Abstract

The invention provides quantum dot light-cured glue, a preparation method thereof and a display device, the quantum dot light-cured glue comprises a mixed solution and a light-cured glue solution, the mixed solution comprises quantum dots, a light diffusion agent, a functional polymer and a light-cured glue solvent, and in the mixed solution, the quantum dots are coated with the functional polymer. The problems of poor quantum dot performance and even structural defects caused by traditional liquid-phase ligand replacement in the prior art can be solved.

Description

technical field [0001] The invention relates to the technical field of quantum dots, in particular to a quantum dot light-curable glue and a preparation method thereof, and a display device using the quantum dot light-curable glue to realize light-color conversion. Background technique [0002] At present, quantum dots (quantum dots) are an important low-dimensional semiconductor material, and the size in three dimensions is not larger than twice the exciton Bohr radius of the corresponding semiconductor material. Moreover, quantum dots have a unique luminous effect and have great application value in the display industry. In the past few decades, the research on quantum dots has made rapid progress. Therefore, the performance research, analysis and optimization of quantum dot devices are of great significance to accelerate their commercial marketization. [0003] The preparation of traditional quantum dot glue is to purify the oily system quantum dots from inert olefins (s...

Claims

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Application Information

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IPC IPC(8): C09J1/00C09J11/06C09J11/04
CPCC09J1/00C09J11/06C09J11/04
Inventor 张超仉旭庄永漳
Owner RAYSOLVE OPTOELECTRONICS (SUZHOU) CO LTD