Quantum dot backlight module and liquid crystal display device

Abstract

The invention provides a quantum dot backlight module. The quantum dot backlight module comprises a light source, a liquid guiding plate, a quantum dot layer, and a restoring layer positioned on the surface of the quantum dot layer, wherein the restoring layer is used for restoring abnormal color light given out in case of partial quantum dot failure caused by influence of water and oxygen permeation at a peripheral cutting position of the quantum dot layer. Compared with the conventional quantum dot backlight module, the quantum dot backlight module provided by the invention has the beneficial effects as follows: the restoring layer is arranged on the edge of the quantum dot layer and can restore the abnormal color light given out in case of green quantum dot failure caused by influence of water and oxygen permeation at the peripheral cutting position of the quantum dot layer, so that pure white light can be given out on the edge of the quantum dot layer and thus the display quality of the liquid crystal display panel is further improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a quantum dot backlight module and a liquid crystal display device. Background technique [0002] At present, the color gamut level of liquid crystal display devices is generally around 72%. In order to improve the color gamut level, quantum dot backlight technology has emerged as the times require. Quantum dot backlight technology can increase the color gamut level of display devices to more than 100%. Currently, the quantum dot backlight technology is adopted, and the quantum dot layer is generally dispersed and coated on the polyester film to form a quantum dot layer, thereby replacing the diffusion film. [0003] Because the quantum dot layer is prone to failure in a water-containing and oxygen-containing environment, the upper and lower sides will be covered with a water-proof and oxygen-proof layer, but when the edge of the quantum dot layer is cut, some wat...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a quantum dot backlight module, which can compensate the green light for the failure area of ​​the quantum dot layer, and mix it with the blue light emitted by the light source and the red light of the quantum dot layer to form the pure white light required for display, so as to solve the problems around the quantum dot layer. The abnormal color light emitted by the cutting part affected by the penetration of water and oxygen, which in turn affects the technical problem of the display quality of the LCD panel

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