Quantum dot material and preparation method, quantum dot membrane, backlight module and display equipment

A technology of quantum dot material and preset temperature, applied in luminescent materials, chemical instruments and methods, optics, etc., can solve problems such as affecting the display effect of liquid crystal display devices, low luminous efficiency of quantum dot films, uneven dispersion of quantum dots, etc. Achieve the effect of reducing the overlap rate, promoting development and improving luminous efficiency
CN106380818AActive Publication Date: 2017-02-08HISENSE VISUAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HISENSE VISUAL TECH CO LTD
Publication Date
2017-02-08

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Abstract

The invention discloses a quantum dot material and a preparation method, a quantum dot membrane, a backlight module and display equipment, belonging to the technical field of liquid crystal display. The preparation method of the quantum dot material comprises the following steps: (a) adding acetate of IIB-group element into a polyether ketone solution with side carboxyl, and stirring and mixing uniformly under the protection of inert gas, wherein the IIB-group element is cadmium or zinc; (b) heating the reaction system obtained in the step (a) to a preset temperature; and (c) adding selenourea or thiourea into the reaction system obtained in the step (b), and detecting the light wavelength of the reaction system, wherein the quantum dot material is obtained when the light wavelength of the reaction system reaches the preset wavelength. The growth of quantum dots is controlled by use of the coordination effect of carboxyl, then the quantum dots are uniformly dispersed in a polymer matrix, the luminous efficiency of the quantum dot membrane based on the quantum dot material is improved, the brightness of the backlight module is enhanced, and the development of high-gamut liquid crystal display equipment is facilitated.
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Description

technical field

[0001] The invention relates to the technical field of liquid crystal display, in particular to a quantum dot material and a preparation method, a quantum dot film, a backlight module and a display device. Background technique

[0002] With the continuous development of liquid crystal display technology, consumers have higher and higher requirements on the color gamut of liquid crystal display devices. In recent years, whether in the International Consumer Electronics Show (CES) or in the China Appliance Expo (AWE), liquid crystal display devices with high color gamut have become the mainstream of development. At present, the color gamut of the liquid crystal display device is mainly improved by using the quantum dot technology to provide a backlight source for the liquid crystal display device. Specifically, a quantum dot film is arranged above the diffusion plate or the light guide plate of the backlight module of the liquid crystal display device. [0003...

Claims

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