Quantum dot and light source assembly, backlight module and liquid crystal display device

Abstract

The invention provides a quantum dot and light source assembly, a backlight module and a liquid crystal display device. The quantum dot and light source assembly comprises a support, a light source and a quantum dot device. The support is in the shape of a groove; the light source is arranged in the center of the bottom of the groove of the support and is used for transmitting light rays; the quantum dot device is arranged at an opening of the groove of the support; the quantum dot device comprises an upper substrate, a lower substrate and a quantum dot layer; closed spaces are formed by the upper substrate and grooves of the lower substrate, and the quantum dot layer is positioned in the grooves of the lower substrate; the quantum dot layer can be excited by the light rays to emit light; the thickness of the center of the quantum dot layer is larger than the thicknesses of the edges of the quantum dot layer. The quantum dot and light source assembly, the backlight module and the liquid crystal display device have the advantages that the uniform chromaticity of the light emitted from the centers and the edges of the quantum dot and light source assembly, the backlight module and the liquid crystal display device can be guaranteed, and accordingly display effects can be improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a quantum dot light source assembly, a backlight module and a liquid crystal display device. Background technique [0002] As consumers have higher requirements for image quality of display devices, high color gamut backlight technology is becoming the focus of research in the industry. [0003] At present, in the quantum dot light source device, the light emitted by the light source emits light through the excitation of the quantum dot material in the quantum dot layer, which can effectively improve the color gamut. In the existing quantum dot light source devices, the quantum dot layers are mostly planarly distributed. However, the light emitted by the light source has a Lambertian distribution, which allows more light to pass through the center of the quantum dot layer and less light to pass through the edge. Since the chromaticity of light emitted by differen...

AI Technical Summary

Problems solved by technology

Because different amounts of light have different chromaticity after passing through the quantum dot layer of the same thickness, the chromaticity of the light output at the center and edge of the quantum dot layer is uneven

[0004] That is to say, the current quantum dot light source devices have uneven light output chromaticity, which affects the display effect

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