Novel full inorganic perovskite quantum dot silica gel lens and preparation method thereof

Abstract

The invention provides a novel full inorganic perovskite quantum dot silica gel lens and is applied to LED light distribution. The novel full inorganic perovskite quantum dot silica gel lens comprises a lens body, wherein an emission surface of the lens body is in a two-semi-circular or semi-elliptical double-ball butterfly shape, a groove is on the surface, a bottom portion of the lens body is provided with a conic diffusion hole, a lower end of the conic diffusion hole is provided with a support equipped with an LED chip, the lens body is formed through solidification of silica gel fixed with quantum dot powder, and the quantum dot powder is prepared by a full inorganic perovskite material. The invention further provides a preparation method of the novel full inorganic perovskite quantum dot silica gel lens. The novel full inorganic perovskite quantum dot silica gel lens is advantaged in that wider color gamut and high light emission efficiency are realized.

Description

technical field [0001] The invention belongs to the technical field of LED backlights, in particular to a novel all-inorganic perovskite quantum dot silica gel lens and a preparation method thereof. Background technique [0002] Since entering the 21st century, LED backlight technology has become the mainstream of the market through continuous development and innovation. Compared with traditional CCFL backlights, LED backlights have many advantages such as high color gamut, high brightness, long life, energy saving and environmental protection, and adjustable colors. Especially, LED backlights with high color gamut are widely used in TVs, mobile phones, and tablet computers. And other electronic products, making the screen color more vivid, and the color reproduction degree is higher. At present, the technical methods to realize white light are mainly divided into three categories: 1. Blue light LED + phosphor powder of different colors; 2. Ultraviolet or violet LED + R, G,...

AI Technical Summary

Problems solved by technology

[0008] Phosphor powder is directly coated on the chip. Due to the rise of the surface temperature of the chip, the quantum efficiency of the phosphor powder decreases, which accelerates the aging of the phosphor powder and reduces the service life of the LED light-emitting device;

[0009] At present, most of the commercial phosphors are YAG powder or silicate, nitride phosphor, KSF phosphor, β-SiAlON, and the color gamut can only reach about 80%. Realized by increasing the amount, it is far from meeting the requirements of today's society for lower energy consumption, higher energy efficiency and higher color gamut

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