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

Abstract

The invention provides a quantum dot light source assembly, a backlight module and a liquid crystal display device. The quantum dot light source assembly of the present invention includes: a bracket, a light source, and a quantum dot device; the bracket is in the shape of a groove; the light source is arranged at the center of the bottom of the groove of the bracket for emitting light; the quantum dot device is arranged at the opening of the groove of the bracket The quantum dot device includes an upper substrate, a lower substrate and a quantum dot layer; the upper substrate and the groove of the lower substrate form a closed space, and the quantum dot layer is located in the groove of the lower substrate; the quantum dot layer is excited by the light and emits light; Wherein, the thickness of the central position of the quantum dot layer is greater than the thickness of the edge position of the quantum dot layer. The present invention can ensure that the chromaticity of light emitted from the central position and the edge position is more uniform, and the display effect is 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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