Display device, backlight module, quantum dot optical diaphragm and preparation method thereof

Abstract

The invention discloses a display device, a backlight module, a quantum dot optical diaphragm and a preparation method thereof. The quantum dot optical diaphragm comprises a quantum dot layer, a first composite water oxygen barrier layer which covers the surface of the light inlet side of the quantum dot layer and a second composite water oxygen barrier layer which covers the surface of the light outlet side of the quantum dot layer; the first composite water oxygen barrier layer and the second composite water oxygen barrier layer are each selected from one or a combination of any two of a first film structure, a second film structure and a third film structure, wherein the first film structure is the composite water oxygen barrier layer which is composed of polyethylene terephthalate (PET) and graphene, the second film structure is a graphene layer, and the third film structure is the water oxygen barrier layer which is composed of PET and aluminum oxide. Compared with the prior art, the water oxygen barrier property, the photopermeability and the structural stability of the quantum dot optical diaphragm are obviously improved.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a display device, a backlight module, a quantum dot optical film and a preparation method thereof. Background technique [0002] Since 2014, high color gamut TVs have quickly occupied the position of flagship products of major TV brands. Whether it is the world-class CES Consumer Electronics Show or the domestic AWE Home Appliances Show, high color gamut is the mainstream of TV development. At present, the mainstream method to achieve a high NTSC color gamut of about 100% is quantum dot technology. The quantum dot optical film using quantum dot technology can increase the color gamut to more than 85%, making the color performance more saturated and realistic, and the picture performance more vivid. visual impact. The structure of the quantum dot optical film prepared by quantum dot technology is as follows: figure 1 As shown, it includes a first water-oxygen barrier layer...

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention provides a display device, a backlight module, a quantum dot optical film and a preparation method thereof, which are used to optimize the existing quantum dot optical film and solve the problem of the water and oxygen barrier layer of the existing quantum dot optical film Low light transmittance, low mechanical strength, easy to fall off, and the cutting incision of the quantum dot optical film is easily eroded by water and oxygen, which makes the quantum dots invalid.

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