Quantum dot light diffusion film

A light-diffusing film and quantum dot technology, applied in optics, optical components, nonlinear optics, etc., can solve problems such as quantum dot failure, unable to prevent water vapor, abnormal color at the edge of the display, etc., and achieve the effect of ensuring the service life

Active Publication Date: 2015-03-25
NINGBO DXC NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, due to the sensitivity of quantum dots to water, it is necessary to adopt certain technical means to isolate quantum dots from water vapor, as described in the patent application number: 201310473832. However, this method can only block the water vapor entering the interior from the surface. Since there is no barrier layer on the end surface of the film, it cannot prevent the water vapor entering the interior from the end surface. After long-term use of this kind of display, it will There is a problem of quantum dot failure and abnormal color at the edge of the display

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A quantum dot light diffusion film, comprising a transparent substrate layer, a light diffusion layer compounded on one side of the transparent substrate layer, the light diffusion layer is a polyvinylidene chloride layer, and the polyvinylidene chloride layer is distributed There are quantum dots and light diffusing particles.

[0022] The quantum dots described in this embodiment are CdSe particles, and the quality of the quantum dots accounts for 5% of the total mass of the light-diffusing layer; the described light-diffusing particles are SiO 2 Particles, the particle size of the light-diffusing particles is 20 μm, and the light-diffusing particles account for 5% of the total mass of the light-diffusing layer.

[0023] During preparation, it only needs to melt the polyvinylidene chloride, add quantum dots and light diffusion particles into it, and then coat it on the transparent substrate layer.

[0024] In this embodiment, an antistatic layer is compounded on the ...

Embodiment 2

[0026] A quantum dot light diffusion film, comprising a transparent substrate layer, a light diffusion layer compounded on one side of the transparent substrate layer, the light diffusion layer is a polyvinylidene chloride layer, and the polyvinylidene chloride layer is distributed There are quantum dots and light diffusing particles.

[0027] The quantum dots described in this embodiment are CdTe particles, and the quality of the quantum dots accounts for 1% of the total mass of the light-diffusing layer; the described light-diffusing particles are TiO 2 Particles, the particle size of the light-diffusing particles is 15 μm, and the light-diffusing particles account for 10% of the total mass of the light-diffusing layer.

[0028] During preparation, it only needs to melt the polyvinylidene chloride, add quantum dots and light diffusion particles into it, and then coat it on the transparent substrate layer.

[0029] In this embodiment, an antistatic layer is compounded on the...

Embodiment 3

[0031] A quantum dot light diffusion film, comprising a transparent substrate layer, a light diffusion layer compounded on one side of the transparent substrate layer, the light diffusion layer is a polyvinylidene chloride layer, and the polyvinylidene chloride layer is distributed There are quantum dots and light diffusing particles.

[0032] The quantum dots described in this embodiment are MgS particles, and the quality of the quantum dots accounts for 4% of the total mass of the light-diffusing layer; the described light-diffusing particles are Al 2 o 3 Particles, the particle size of the light-diffusing particles is 50 μm, and the light-diffusing particles account for 3% of the total mass of the light-diffusing layer.

[0033] During preparation, it only needs to melt the polyvinylidene chloride, add quantum dots and light diffusion particles into it, and then coat it on the transparent substrate layer.

[0034] In this embodiment, an antistatic layer is compounded on t...

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Abstract

A quantum dot light diffusion film comprises a transparent base material layer and a light diffusion layer composited on one face of the transparent base material layer. The light diffusion layer is a polyvinylidene chloride layer. Quantum dots and light diffusion particles are distributed on the polyvinylidene chloride layer. The transparent base material layer is coated with the quantum dot light diffusion layer. The quantum dot light diffusion layer comprises high-barrier-property polyvinylidene chloride, namely, PVDC matrix resin and quantum dots dispersed in a matrix. The quantum dot diffusion layer further comprises light diffusion particles which are evenly dispersed in the matrix resin, oxygen, moisture and the like are thoroughly isolated from the quantum dots through the high-barrier-property resin, and therefore the service life of the quantum dot light diffusion film is ensured.

Description

technical field [0001] The invention relates to a quantum dot light diffusion film. Background technique [0002] With the advent of the digital age, liquid crystal displays (LCDs) have become the most ubiquitous display technology today. Because LCD has the advantages of environmental protection, low energy consumption, low radiation, soft picture, etc., LCD will be the mainstream display technology in the next few decades. The LCD is a non-luminescent display device, which needs a backlight source to achieve the display function. The performance of the backlight will not only directly affect the image quality of the LCD, but the cost of the backlight accounts for 3-5% of the LCD module, and the power consumption accounts for 75% of the module. It is a very important component in the LCD module. High-definition and large-size LCDs must be supported by high-performance backlight technology. Therefore, while the LCD industry is striving to develop new application fields, hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02G02F1/13357
CPCG02B5/0226G02F1/1336G02F1/133614
Inventor 罗培栋樊华伟靳钊
Owner NINGBO DXC NEW MATERIAL TECH
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