Method and device for manufacturing an array line laser quantum dot backlight module

Abstract

The present invention relates to an array line laser quantum dot backlight module set fabrication method and device. The device comprises at least one excitation point light source and a flat plate type light guide plate, wherein the excitation point light sources are blue laser light sources which are distributed in an arrayed manner; the device further comprises line laser forming control elements; the line laser forming control elements are located between the excitation point light sources and the flat plate type light guide plate; the line laser forming control elements are Powell lenses; the Powell lenses are arranged in an arrayed manner; the axial azimuth angles of the Powell lenses are adjusted through lens holders; distances between the Powell lenses and the blue laser light sources are adjustable; and an included angle between the incidence direction of line laser formed by the Powell lenses at the side surface of the light guide plate and the normal of the side surface of the light guide plate is adjusted through the lens holders. With the method and device of the invention adopted, the wavelength of the light sources and the brightness and power consumption of the lasers can be controlled, and therefore, highlighted laser can effectively become line laser, and the line laser can enter the light guide plate.

Description

technical field [0001] The invention relates to the field of laser display and lighting, in particular to a manufacturing method and device for an array line laser quantum dot backlight module. Background technique [0002] With the development of social science and technology, people have higher and higher requirements for the optical performance of displays. From early fluorescent tube backlit displays to current LED backlit displays. At the same time, from computer display, to mobile phone, to large screen, to home theater, all reflect the development of display technology. However, any technology has its limitations. Although LED has become a hot spot in the market today and has been greatly popularized, there are still development bottlenecks in some aspects, especially in terms of brightness, stability and color gamut. Therefore, people are trying to develop new technologies to improve existing products, and the laser as a light source is at the right time. [0003]...

AI Technical Summary

Problems solved by technology

[0006] At present, researchers are engaged in the research and development of backlight light source based on quantum dots. However, the excitation light source is blue LED. Since LED is a broad-spectrum light source, the spectrum of the light source is very wide, and the advantages of quantum dots cannot be well utilized. Therefore, there is an urgent need for An excitation light source with a purer color, so that the broad-spectrum color gamut formed by quantum dots is wider and the color is more pure

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