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Active brightness enhancement film and preparation method therefor

A brightening film, active technology, applied in semiconductor/solid-state device manufacturing, electrical components, electrical solid-state devices, etc., can solve the problems of strong resistance to oxygen and humidity, high thermal conductivity, and inability to meet wide color gamut at the same time. Economical cost, excellent performance, and the effect of improving the ability to resist oxygen and humidity

Inactive Publication Date: 2017-05-10
TIANJIN ZHONGHUAN QUANTUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing composite materials cannot simultaneously meet the requirements of wide color gamut, linearly polarized light, strong resistance to oxygen and moisture, and high thermal conductivity.

Method used

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  • Active brightness enhancement film and preparation method therefor
  • Active brightness enhancement film and preparation method therefor
  • Active brightness enhancement film and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Make PVA into a solution (concentration is 10wt%), then add CdSe / CdS quantum rod material (length is 10~50nm, radius is 0.5~10nm), and mix evenly by planetary gravity mixer to make a mass fraction of 1%. The quantum rod polymer composite material is then made into a polymer film in which the quantum rods are oriented by the film-making method of electromagnetic field orientation and electrospinning.

[0042] Then prepare polymer PVC solution (concentration is 10wt%), doped with metal Au nanorods (length is 5~500nm, radius is 0.5~100nm) with mass fraction of 30%, mixed uniformly by planetary gravity mixer, and then passed electromagnetic field Orientation and electrospinning film-making methods are used to make polymer films with oriented alignment of metal nanorods.

[0043] The two layers of films are then laminated by a laminating machine to form a quantum rod active brightness enhancement film, and the quantum rods are perpendicular to the alignment direction of the ...

Embodiment 2

[0049] Make PMMA into a solution (concentration is 5wt%), then add CdTe / CdS quantum rod material (length is 10~50nm, radius is 0.5~10nm), and mix evenly by planetary gravity mixer to make a mass fraction of 1.5%. The quantum rod polymer composite material is then made into a polymer film in which the quantum rods are oriented by the film-making method of electromagnetic field orientation and electrospinning.

[0050] Then prepare polymer PVC solution (concentration is 15wt%), doped with metal Al nanorods (length is 5~500nm, radius is 0.5~100nm) with mass fraction of 60%, mixed uniformly by planetary gravity mixer, and then passed electromagnetic field Orientation and electrospinning film-making methods are used to make polymer films with oriented alignment of metal nanorods.

[0051] The two layers of films are then laminated by a laminating machine to form a quantum rod active brightness enhancement film, and the quantum rods are perpendicular to the alignment direction of th...

Embodiment 3

[0053] Add the ZnTe / CdZnS quantum wire material to the 20wt% PVP solution, mix it evenly with a planetary gravity mixer, and make a quantum wire polymer composite material with a mass fraction of 0.5%, and then make it by electromagnetic field orientation and electrospinning. A polymer film in which the quantum wires are oriented.

[0054] Add the metal Ag nanowire material to the 30wt% PMMA solution, mix it evenly through a planetary gravity mixer, and make a metal nanowire polymer composite material with a mass fraction of 30%, and then make it through the film-making method of electromagnetic field orientation and electrospinning Polymer films with aligned metal nanowires.

[0055] Two layers of quantum material polymer films and two layers of metal nanomaterial polymer films are laminated to form an active brightness enhancement film, and the quantum wires are perpendicular to the arrangement direction of the metal nanowires.

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Abstract

The invention belongs to the technical field of production and manufacturing of an optical film, and discloses an active brightness enhancement film. The brightness enhancement film comprises a polymer thin film layer comprising a quantum material, and a polymer thin film layer comprising a metal nanomaterial, wherein the quantum material is in directional arrangement; the metal nanomaterial is in directional arrangement; and the quantum material is perpendicular to the arrangement direction of the metal nanomaterial. The invention also discloses a preparation method for the active brightness enhancement film. According to the active brightness enhancement film, the maximum efficiency can be realized while blue, red and green polarized light can be obtained; P polarized light emitted by LED back light can be realized in a non-DBEF condition, so that monopoly of the American 3M company can be broken; and the active brightness enhancement film, used as a light emitting material, is used for many purposes of QLED backlight display and the like.

Description

technical field [0001] The invention belongs to the technical field of optical film production, and in particular relates to an active brightness enhancement film and a preparation method thereof. Background technique [0002] Semiconductor lighting and display is a new lighting and display technology based on high-efficiency white light emitting diodes (White Light Emitting Diode, WLED). Compared with traditional light sources, it has the advantages of high luminous efficiency, low power consumption, high reliability and long life, and is recognized as one of the most promising high-tech fields in the 21st century. In the new wide color gamut LED display of quantum dot LED backlight + liquid crystal panel, DBEF (Dual Brightness Enhancement Film) is a brightness enhancement film composed of multiple layers of anisotropic refractive index film materials. The unpolarized light emitted from the quantum dot LED enters the DBEF, and the P-polarized light passes through; while th...

Claims

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Application Information

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IPC IPC(8): H01L51/50H01L51/52H01L51/56
CPCH10K50/115H10K50/868H10K71/00
Inventor 马昊玥安娜李春峰唐秀梅边盾周子明卢睿杨磊
Owner TIANJIN ZHONGHUAN QUANTUM TECH CO LTD
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