Quantum dot diffuser plate

Abstract

The invention provides a quantum dot diffuser plate. PS or PC or PMMA plastic particles are selected as base material; the selected base material and powder mixture are well stirred and mixed to make optical master batches; 100 parts of the base material, 1 to 25 parts of the optical master batches, 1 to 25 parts of the GPPS and 1 to 9 parts of quantum dot are selected; the mixture is melted and well stirred in a extrusion forming machine; quantum dot diffuser plate sheet material is formed; the quantum dot diffuser plate sheet material is cooled through an extrusion line and is cut into quantum dot diffuser plate products which are suitable to backlight module groups. The quantum dot diffuser plate extraction forming is fused with quantum dots; a white light excitation layer is excited by blue light to generate white light rays pass through the dead space of the quantum dot diffuser plate; and the light emitted from the light outputting surface of the quantum dot diffuser plate is also white light; the two white light have small chromatic aberration and therefore the problem of chromatic aberration in visible ranges can be effectively solved. The color gamut of the backlight module has high uniformity.

Description

technical field [0001] The invention relates to the field of backlight technology, in particular to a quantum dot diffusion plate. Background technique [0002] In general, the direct-type backlight module includes: a diffusion plate, a back plate, a plastic frame arranged around the diffusion plate, an LED light lens, an optical film group, the LED light lens is fixed on the back plate by a heat-conducting tape, and the optical film The panel is also fixed on the plastic frame by a light-shielding double-sided tape, and the LCD screen is fixed around the backlight module by double-sided tape. [0003] Among them, the main function of the diffusion plate is to fully scatter the incident light to achieve a softer and more uniform irradiation effect. Generally speaking, the current general-purpose diffusion plates are formed by extruding GPPS and light-diffusing particles. Since the light-diffusing particles contain a light-diffusing agent, the light-diffusing agent will inev...

AI Technical Summary

Problems solved by technology

[0004] Liquid crystal displays have higher and higher requirements for color clarity, which requires an increase in the color gamut of the display device. Because there is a certain width of failure area at the cutting edge of the high-color gamut quantum dot film, the color of the failure area is different from that of other areas. The color produces chromatic aberration, and the uniformity of the color gamut is poor

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