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Backlight module, quantum dot diaphragm and manufacturing method thereof

A technology of quantum dot film and production method, applied in optics, nonlinear optics, instruments, etc., can solve the problems of low backlight brightness, low excitation efficiency, insufficient red light and green light quantity, etc., so as to improve backlight brightness, improve light The utilization rate of luminescence and the effect of avoiding the bluish color of the backlight

Inactive Publication Date: 2018-02-13
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology

At present, most methods of realizing the highest color gamut of LCD are to use blue LEDs with QD film, and then cooperate with the improvement of color filters to achieve high monochromaticity of red, green, and blue colors, thereby improving the color gamut of the display. , the excitation efficiency of the traditional QD diaphragm is low, resulting in insufficient excitation of red and green light, low brightness of the backlight, and the backlight may still appear bluish

Method used

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  • Backlight module, quantum dot diaphragm and manufacturing method thereof
  • Backlight module, quantum dot diaphragm and manufacturing method thereof
  • Backlight module, quantum dot diaphragm and manufacturing method thereof

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] refer to figure 1 , the quantum dot membrane 2 of the embodiment of the present invention includes a quantum dot layer 10 and two upper and lower protective layers 20 sandwiching the quantum dot layer 10 therein, and the upper protective layer 20 has a microporous structure with air bubbles 30 inside. The quantum dot layer 10 can be encapsulated with red and green quantum dots, and the red and green quantum dots can be excited by blue light to generate red and green spectra accordingly. When in use, the protective layer 20 of the microporous structure that the quantum dot membrane 2 has c...

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Abstract

The invention discloses a quantum dot diaphragm which comprises a quantum dot layer, an upper protective layer and a lower protective layer. The quantum dot layer is clamped between the upper and lower protective layers; the upper protective layer is internally provided with a micro-hole structure with bubbles. The inventionfurther discloses a manufacturing method of the quantum dot diaphragm anda backlight module. Bubbles are formed inside one protective layer of the quantum dot layer, light enters the bubbles insidethe protective layer from the quantum dot layer, total reflection can happen, and then the light enters the quantum dot layer again, so that the photoluminescence utilization rate of the quantum dot layer is increased, the backlight brightness is improved, and the phenomenonthat the color of backlight is blue is avoided.

Description

technical field [0001] The invention relates to the technical field of quantum display, in particular to a backlight module, a quantum dot film and a manufacturing method thereof. Background technique [0002] With the increasing demand of consumers for the image quality of electronic display products such as TVs, portable computers, and monitors, the market has higher and higher requirements for the color gamut and brightness of displays. Improving the color gamut is mainly to improve the monochromaticity of the backlight display color. The better the monochromaticity, the higher the color gamut. [0003] At present, the main methods for improving the color gamut are: combining green LED light sources with RG (Red+Green, that is, red and green) phosphors or KSF (K 2 SiF 6 : the abbreviation of Mn4++, that is, potassium fluorosilicate) powder containing tetravalent manganese ions; the optical film adopts the absorption film that absorbs stray light, and more QD (quantum do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/1336G02F1/133614
Inventor 何小宇付琳琳
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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