Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of quantum dot glue composition and a kind of quantum dot film and preparation method thereof

A quantum dot film and quantum dot technology, applied in the field of optical thin films, can solve the problems of quantum dot water and oxygen erosion, quantum dot failure, etc.

Active Publication Date: 2022-04-26
NINGBO EXCITON TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that quantum dots in existing quantum dot films are easily eroded by water and oxygen, the invention provides a quantum dot glue composition, a quantum dot film and a preparation method thereof
The present invention adds allyl benzoxazine to the quantum dot glue composition, which can effectively increase the crosslinking density of the system, effectively prevent the penetration of water and oxygen, and solve the problem of the quantum dots in the existing quantum dot film. The problem of failure due to water and oxygen erosion can greatly improve the service life of quantum dot films

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of quantum dot glue composition and a kind of quantum dot film and preparation method thereof
  • A kind of quantum dot glue composition and a kind of quantum dot film and preparation method thereof
  • A kind of quantum dot glue composition and a kind of quantum dot film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0052] The invention provides a kind of preparation method of quantum dot film, described preparation method comprises the following steps:

[0053] (1) Stir a certain proportion of allyl benzoxazine, scattering particles and adhesive resin at high speed for 30 minutes to obtain a quantum dot glue pre-dispersion;

[0054] (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;

[0055](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;

[0056] (4) After UV curing, the quantum dot film is prepared, and the quantum dot film is aged at 80° C. for 24 hours.

[0057] Quantum dot film provided by the invention adopts following method to test its performance:

[0058] 1. Test of luminance and white point coordinates (Wx, Wy): Place a 31.5-inch quantum ...

Embodiment 1

[0061] The invention provides a quantum dot glue composition, which comprises an adhesive resin, allyl benzoxazine, scattering particles and quantum dots.

[0062] The quantum dot glue composition comprises: 100 parts by weight of adhesive resin; 10 parts by weight of quantum dots; 5 parts by weight of dodecyl allyl benzoxazine; 5 parts by weight of scattering particles. The adhesive resin is UV light-curable adhesive resin; the material of the scattering particles is titanium dioxide, and its particle size is 0.2 microns; the quantum dots include 5 parts by weight of red quantum dots and 5 parts by weight of green quantum dots.

[0063] Prepare quantum dot film with above-mentioned quantum dot glue composition, the preparation method of described quantum dot film comprises the following steps:

[0064] (1) Allyl benzoxazine is weighed according to the number of parts by weight, and the scattering particles and the adhesive resin are stirred at high speed for 30 minutes to obt...

Embodiment 2

[0070] 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; 10 parts by weight of quantum dots; 5 parts by weight of phenylallyl benzoxazine; 5 parts by weight of scattering particles. The adhesive resin is UV-curable adhesive resin; the quantum dots include 5 parts by weight of red quantum dots and 5 parts by weight of green quantum dots; the scattering particles are made of titanium dioxide with a particle size of 0.2 microns.

[0071] A quantum dot film was prepared by using the above quantum dot glue composition, and the thickness of the quantum dot glue layer of the prepared quantum dot film was 50 μm.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of optical thin films, in particular to a quantum dot glue composition and a quantum dot film. In order to solve the problem that quantum dots in existing quantum dot films are easily eroded by water and oxygen, the invention provides a quantum dot glue composition and a quantum dot film. The quantum dot composition includes: 100 parts by weight of adhesive resin, 5-15 parts by weight of allyl benzoxazine, 0.5-20 parts by weight of quantum dots and 1-30 parts by weight of scattering particles. The present invention adds allyl benzoxazine to the quantum dot glue composition, which can effectively increase the crosslinking density of the system, effectively prevent the penetration of water and oxygen, and solve the problem of the quantum dots in the existing quantum dot film. The problem of failure due to water and oxygen erosion can greatly improve the service life of the quantum dot film.

Description

technical field [0001] The invention relates to the technical field of optical thin films, in particular to a quantum dot glue composition, a quantum dot film and a preparation method thereof. Background technique [0002] Quantum dots (QDs) are three-dimensional clusters with nanoscale dimensions, so they are also called nanodots or nanocrystals. The scale of QDs is generally between 1-10 nm, and usually consists of hundreds to tens of thousands of atoms. When the movement of excitons in three-dimensional space is restricted, the continuous energy level of the bulk material becomes a split energy level, and the energy band structure has a strong size dependence. Therefore, QDs have unique properties such as tunable band gap, narrow luminescence peak, and high photoluminescence quantum yield (PLQY). 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 consid...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06
Inventor 唐海江李培源徐良霞孙书政陈冲董伦杨成章李刚张彦
Owner NINGBO EXCITON TECH