A quantum dot light guide plate and a manufacturing method thereof

Abstract

The invention relates to a quantum dot light guide plate and a manufacturing method thereof. The quantum dot light guide plate comprises a light guide plate, a lens array disposed on the light exit surface of the light guide plate, a plurality of quantum dot light guide lattice points disposed on the reflective surface of the light guide plate and a water-oxygen protective layer covering the outersurface of the quantum dot light guide lattice points. The printing and photolithography process is utilized to realize the lens array of the light exit surface of the light guide plate, thereby effectively improving the brightness and uniformity of the quantum dot light guide plate. According to the invention, the light guide plate has higher luminous efficiency, better color rendering, wider color gamut and higher light uniformity than the conventional liquid crystal backlight module; the production conditions of the conventional light guide plates can be utilized, thereby greatly saving the production cost.

Description

technical field [0001] The invention relates to the technical field of light guide plates, in particular to a quantum dot light guide plate and a manufacturing method thereof. Background technique [0002] Quantum dots are a brand-new nano-fluorescent material, including photoluminescent quantum dots (QD-LCD) and electroluminescent quantum dots (QLED). At present, electroluminescent quantum dots have not yet been industrialized; with the development of quantum dot technology , especially quantum dots with a series of unique optical properties such as adjustable spectral size (400~800nm), large Stokes shift, high luminous efficiency, excellent color rendering, wide color gamut, and good luminous stability, have been widely used Applications. The LED backlight used in early liquid crystal displays or TVs is not a true white light, but contains high-energy photons, that is, more blue light, which has been considered by medicine to be harmful to human health. Therefore, the rea...

AI Technical Summary

Problems solved by technology

Although Chinese patents disclose a lot about the preparation method of quantum dot light guide plate, most of the contents are vague and difficult to be accepted by the industry. In order to realize LCD backlight with high light efficiency and high color quality, the present invention discloses a semi- Quantum dots with peak width and wavelength can control the color gamut, color temperature and brightness of the light guide plate by adjusting the different component ratios and mass ratios of red and green quantum dots. At the same time, the specific preparation and production methods of quantum dot paste and printing screen are also disclosed. The production method of the plate can be applied to the production and production of the existing light guide plate

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