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Green quantum dot film and backlight module thereof

A technology of backlight module and quantum dot film, applied in the field of optical film

Inactive Publication Date: 2018-04-27
NINGBO DXC NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent mainly solves the problem of supplementing light for plant growth, and does not involve the stability of the fluorescence intensity of the quantum dot film and how to prolong the service life of the quantum dot film

Method used

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  • Green quantum dot film and backlight module thereof
  • Green quantum dot film and backlight module thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 Preparation of LED lamp

[0032] Apply the red phosphor colloid on the top of the blue LED chip through the dispensing equipment so that it completely covers the chip and forms a hemispherical appearance, put it in an oven at 150°C, and take it out after the colloid is cured and fix it on the substrate. Then, the transparent shell is installed on the substrate by the encapsulant to complete the preparation of the LED lamp.

Embodiment 2

[0033] Example 2 Preparation of green quantum dot film

[0034] First, the front of the PET film is subjected to vacuum evaporation treatment so that the surface forms a barrier layer with good water and oxygen resistance properties (thickness is about 2 μm to 5 μm), and the back of the base film after vacuum evaporation treatment is then coated. .

[0035] The green quantum dots in the quantum dot layer are 0.6-1.0 parts by mass, and the proportions of other main components and corresponding parts by weight are as follows:

[0036] Resin: 35-45 parts by mass;

[0037] Monomer: 45-55 parts by mass;

[0038] Photoinitiator: 1 to 3 parts by mass;

[0039] Diffusing particles: 1 to 3 parts by mass;

[0040] Other additives: 2-5 parts by mass.

[0041] The preparation method comprises the following steps:

[0042] ①Configuration of UV-curable glue: Mix resin, monomer, photoinitiator, diffusion particles, and additives in proportion, heat slowly, keep the temperature within 8...

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Abstract

The invention discloses a green quantum dot film and a preparation method of a backlight module thereof. The method performs functional design on the protective layer of the green quantum dot film; the outer surface of the protective layer has a good light diffusion effect after being coated, and inorganic diffusion particles in the coated layer play a role in blocking light in some bands, thus the light damage caused by long-time light irradiation on the quantum dot is slowed down. The invention also provides a using method of the green quantum dot film, the using method matches the green quantum dot film and a blue chip with red phosphor to make a novel LED light source, and the using method improves the stability of the quantum dot film while greatly increasing the color gamut coverageof the LCD.

Description

technical field [0001] The invention belongs to the field of optical films, in particular to a preparation method of a green quantum dot film and a backlight module. Background technique [0002] Liquid crystal display (LCD), as the mainstream display technology in various fields in today's society, is more and more favored by people. With the improvement of living standards, people have higher and higher requirements on the display quality of liquid crystal display devices. Especially in terms of color gamut and brightness, liquid crystal displays are constantly being surpassed by other display technologies such as organic light-emitting diodes (LED) and laser displays. [0003] In order to make the image color reproduction ability of the liquid crystal display device stronger and the color rendering performance more excellent, quantum dots are gradually used in the field of liquid crystal display. There are three forms of application of quantum dots in the field of liqui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133603G02F1/133606G02F1/133609G02F1/133614
Inventor 罗培栋赵杨
Owner NINGBO DXC NEW MATERIAL TECH
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