High-brightness shielding and low-deformation quantum dot diffusion plate and preparation method and application thereof

Abstract

The invention discloses a high-brightness shielding and low-deformation quantum dot diffusion plate and a preparation method and application thereof. The quantum dot diffusion plate comprises the following components in parts by weight: 100 parts of a resin base material, 5-20 parts of glass fibers, 0.1-1 part of quantum dots, 0.2-1 part of a weather-resistant agent, 0.3-2 parts of an antioxidant and 1-2 parts of a lubricant, the refractive index of the glass fiber is 1.4-1.58, and the average diameter of the glass fiber is 7-17 microns. According to the quantum dot light diffusion plate, the glass fiber with the specific refractive index and diameter is selected as the light diffusion medium and introduced into the diffusion plate, the quantum dot technology is combined, the linear expansion coefficient of the quantum dot light diffusion plate can be remarkably reduced, the deformation resistance is improved, and the quantum dot light diffusion plate has high brightness and haze value.

Description

Technical field [0001] The present invention relates to the field of display and lighting technology, more particularly, relates to a high-brightness masking, low-deformation quantum dot diffusion plate and preparation method and application thereof. Background [0002] The light diffusion plate is a physical phenomenon of refraction, reflection and scattering occurs when the light encounters two mediums with different refractive indexes during the process of acting, and the optical diffusion agent is added to the transparent resin substrate to change the travel route of the light and achieve the effect of full dispersion of the incident light to produce optical diffusion. [0003] Quantum dot materials have the characteristics of wide excitation spectrum, narrow emission spectrum, high color purity and good light stability, which can improve the optical performance of the diffusion plate. The quantum dot diffusion plate combines quantum dot technology and light diffusion plate t...

AI Technical Summary

Problems solved by technology

[0004] Quantum dot diffusion plates currently on the market are mainly prepared by the following methods: (1) Quantum dots are printed on the diffusion plate by printing, but the printing process is extremely complicated and difficult to apply to industrial continuous production; (2) ) is put into use by combining the quantum dot film with the ordinary diffusion plate, or using the co-extrusion method to cover the film, but for large-scale display devices, it is easy to appear the problem of display distortion caused by the inconsistent linear expansion coefficient of the quantum dot film and the diffusion plate

[0005] At present, display devices are becoming thinner and larger in size, and the size of the corresponding diffusion plate is also increasing. However, the diffusion plate with larger quantum dots is prone to expansion and deformation due to insufficient deformation resistance, resulting in display problems.

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