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A quantum dot glue composition and a quantum dot film

A technology of quantum dot glue layer and quantum dots, which is applied in the direction of non-polymer adhesive additives, adhesive types, adhesive additives, etc., can solve the problems of quantum dot failure, quantum dot water and oxygen erosion, failure, etc., to achieve Improve service life, excellent performance stability, good water and oxygen barrier effect

Active Publication Date: 2021-03-16
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the quantum dots in the existing quantum dot film are easily eroded by water and oxygen, the present invention provides a quantum dot glue composition and a quantum dot film
The present invention adds inorganic flake fillers to the quantum dot glue composition. The filler has a large diameter-to-thickness ratio, which can effectively prevent water and oxygen from penetrating, and effectively solves the problem that quantum dots are easily corroded by water and oxygen and become invalid. problems, can greatly improve the service life of quantum dot (thin) film

Method used

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  • A quantum dot glue composition and a quantum dot film
  • A quantum dot glue composition and a quantum dot film

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preparation example Construction

[0048] The invention provides a kind of preparation method of quantum dot film, described preparation method comprises the following steps:

[0049] (1) Stir a certain proportion of inorganic flake filler, scattering particles and adhesive resin at high speed for 30 minutes to obtain a quantum dot glue pre-dispersion;

[0050] (2) adding the quantum dots to the quantum dot glue pre-dispersion prepared in step (1) and stirring at high speed for 30 minutes to prepare the quantum dot glue composition;

[0051] (3) Utilizing the composite coating process, the quantum dot glue composition obtained in step (2) is coated between the upper and lower water-oxygen barrier layers;

[0052] (4) After UV curing, the quantum dot film is prepared.

Embodiment 1

[0059] The invention provides a quantum dot glue composition, which comprises an adhesive resin, an inorganic flake filler, scattering particles and quantum dots.

[0060] The quantum dot glue composition comprises: 100 parts by weight of adhesive resin; 10 parts by weight of quantum dots; 0.1 parts by weight of inorganic flake filler; 30 parts by weight of scattering particles. Wherein the adhesive resin is a UV photocurable acrylic adhesive resin; wherein the quantum dots include 5 parts by weight of red quantum dots and 5 parts by weight of green quantum dots; wherein the material of the inorganic flake filler is mica, and the appearance is scaly, The thickness is 1 micron, the diameter is 300 microns, and the aspect ratio is 300; the material of the scattering particles is titanium dioxide, the appearance is spherical, and the particle size is 0.2 microns.

[0061] Prepare quantum dot film with above-mentioned quantum dot glue composition, the preparation method of describ...

Embodiment 2

[0068] The quantum dot glue composition as described in Example 1, the raw materials of the quantum dot glue composition include the following ingredients: the quantum dot glue composition includes: 100 parts by weight of adhesive resin; 6 parts by weight of quantum dots; 25 parts by weight of inorganic flake filler; 20 parts by weight of scattering particles. Wherein the adhesive resin is a UV photocurable acrylic adhesive resin; wherein the quantum dots include 1 weight part of red quantum dots and 5 weight parts of green quantum dots; wherein the material of the inorganic flake filler is mica, and the appearance is leaf-like, The thickness is 30 microns, the diameter is 600 microns, and the aspect ratio is 20; the material of the scattering particles is titanium dioxide, the appearance is spherical, and the particle size is 2 microns.

[0069] A quantum dot film was prepared by using the above quantum dot glue composition, and the thickness of the quantum dot glue layer of ...

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Abstract

The invention relates to the field of optical films, in particular to a quantum dot glue composite and a quantum dot film. The quantum dot glue composite and the quantum dot film aim to solve the problem that quantum dots in an existing quantum dot film are likely to be influenced by oxygen and steam, and consequently the optical performance is reduced or fails. The quantum dot glue composite comprises 100 parts by weight of resin adhesive, 0.1-25 parts by weight of inorganic flaky filler, 0.2-20 parts by weight of quantum dots and 1-30 parts by weight of scattering particles. The quantum dotglue composite comprises the inorganic flaky filler, the quantum dot film prepared from the quantum dot glue composite presents more excellent performance stability, and the problem that the quantum dots are likely to be eroded by oxygen and steam, and consequently the performance of the quantum dot film is reduced or fails can be solved. A preparation method of the quantum dot glue composite is simple and feasible, and industrial production is convenient.

Description

technical field [0001] The invention relates to the technical field of optical films, in particular to a quantum dot glue composition and a quantum dot film. Background technique [0002] Quantum dots are three-dimensional clusters with nanoscale size, so they are also called nanodots or nanocrystals. Due to the special structure of quantum dots, it has quantum size effect, macroscopic quantum tunneling effect, photoelectric effect and surface effect, thus producing unique physical and chemical properties and unique luminescent properties, which also makes quantum dot materials become a material involving physics, chemistry, optics. , nanomaterials technology and other interdisciplinary fields. With the rapid development of semiconductor quantum dot synthesis, its advantages such as low cost, high stability, high quantum yield and large-scale production make it considered a solid foundation for further research on many frontier applications. Among them, the II-VI quantum d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/04C09J11/04G02F1/13357
CPCC08K3/34C08K3/346C08K7/00C08K7/18C09J11/04C09J133/04G02F1/1336G02F1/133614
Inventor 张彦李刚薛永富任远飞李培源徐良霞
Owner NINGBO EXCITON TECH