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Reflective film with better light mixing effect and preparation method thereof

A reflective film and light mixing technology, which is applied to chemical instruments and methods, flat products, and other household appliances, etc., can solve the problems that the light diffusion effect of the reflective film needs to be improved, so as to reduce the surface gloss, increase the reflection, and improve the surface quality. The effect of roughness

Active Publication Date: 2019-06-21
NINGBO DXC NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to improve the optical performance of the reflective film, increase the reflectivity, and reduce light loss, so that the light emitted from the light source can be utilized to the greatest extent, is an important issue to be solved urgently for the direct-type ultra-thin backlight module. The light diffusion effect of various reflective films still needs to be improved

Method used

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  • Reflective film with better light mixing effect and preparation method thereof
  • Reflective film with better light mixing effect and preparation method thereof

Examples

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Effect test

Embodiment 1

[0024] refer to figure 1 , a reflective film with better light mixing effect, comprising a PET core layer 2 with microbubbles 1, both sides of the PET core layer 2 are compounded with a light diffusion layer 3.

[0025] Described light diffusion layer is made up of following components:

[0026] Diatomite particles modified by coupling agent: 7 parts by mass;

[0027] Light-diffusing particles: 8 parts by mass;

[0028] PET: 75 parts by mass.

[0029] Wherein, the particle size of the diatomite particles 4 is controlled between 5-15 μm (including 5 μm and 10 μm), and the modification method of the diatomite particles is: diatomite and coupling agent in absolute ethanol or butanone Mixing in medium, wherein the coupling agent adopts silane coupling agent or aluminate coupling agent or zirconate coupling agent, the amount of coupling agent is 2% of diatomite mass, and then ultrasonic vibration is used to make the coupling agent and The diatomite particles are fully mixed to ...

Embodiment 2

[0032] Described light diffusion layer is made up of following components:

[0033] Diatomite particles modified by coupling agent: 15 parts by mass;

[0034] Light diffusing particles: 13 parts by mass;

[0035] PET: 70 parts by mass.

[0036] The amount of coupling agent is 2.1% of the mass of diatomite.

[0037] The remaining implementation modes are the same as the first embodiment.

Embodiment 3

[0039] Described light diffusion layer is made up of following components:

[0040] Diatomite particles modified by coupling agent: 5 parts by mass;

[0041] Light diffusing particles: 11 parts by mass;

[0042] PET: 80 parts by mass.

[0043] The amount of coupling agent is 1.5% of the diatomite mass.

[0044] The remaining implementation modes are the same as the first embodiment.

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Abstract

The invention relates to a reflecting film with a better light mixing effect. The reflecting film comprises a core layer provided with microbubbles, wherein a light diffusion layer is respectively compounded on the two sides of the core layer; and each light diffusion layer is composed of the following components: diatomite particles modified by a coupling agent, light diffusion particles and polyester. A preparation method comprises the following steps: firstly preparing materials for the core layer, melting the diatomite particles modified by the coupling agent, the light diffusion particles and a polyester slice in ratio, mixing, carrying out extrusion pelletizing, carrying out extrusion casting on the materials for the core layer at a three-layer extrusion clamping head, then carrying out bidirectional stretching, and cooling, so that the reflecting film is formed. The reflecting film provided by the invention has the advantages that the diatomite particles with a porous structure are used, the characteristic that the surface of each diatomite particle is high in porosity, strong in absorptivity, stable in chemical properties, wear-resistant and heat-resistant is utilized, excellent surface properties can be provided for the surface layer of the reflecting film, the surface roughness is improved, the surface gloss is reduced, and reflecting and scattering times of light are increased, so that lights of a backlight are uniformly and efficiently reflected onto the front of a display.

Description

technical field [0001] The invention relates to a reflective film and a preparation method thereof. Background technique [0002] Nowadays, the advancement of science and technology has brought great changes to our life. There are more and more liquid crystal display devices, and various liquid crystal display products have entered our lives. From mobile phones to computer monitors, from PDAs to flat panel TVs. LCD technology is everywhere. Liquid crystal is a substance between solid and liquid. It cannot emit light by itself. It must use a backlight to achieve the display function. Backlight is an important component of liquid crystal display. The performance of backlight directly affects the image quality of LCD. Therefore, reducing the thickness of the backlight module and improving the display effect of the backlight are crucial to reducing the thickness and cost of the liquid crystal display and improving the display effect of the liquid crystal display. important. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B27/18B32B5/18B32B27/36B29C69/02B29L7/00B29L9/00
CPCB29C48/0018B29C48/21B29D7/01B29L2007/00B29L2009/00B32B5/18B32B27/08B32B27/18B32B27/36B32B2250/40B32B2307/416B32B2457/202C08K3/22C08K3/30C08K3/34C08K9/04C08K9/06C08K2003/2241C08K2003/2296C08K2003/3009C08K2201/005C08L67/02
Inventor 罗培栋郭郊
Owner NINGBO DXC NEW MATERIAL TECH