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A quantum dot enhanced film with excellent optical effect and preparation method thereof

A quantum dot enhanced film and optical effect technology, which is applied in chemical instruments and methods, electrical components, circuits, etc., can solve the problems of large optical loss of quantum dot film, short use and storage life, high preparation cost, etc., and achieve luminescence spectrum Symmetry, extended use and storage life, excellent water and oxygen barrier effect

Active Publication Date: 2018-08-17
厦门世纳芯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the quantum dot film prepared by existing materials and preparation methods has large optical loss, short service life and storage life, and has problems such as low lumen efficiency, low color purity, narrow color gamut and other poor optical effects, and its preparation cost is also very high. high

Method used

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  • A quantum dot enhanced film with excellent optical effect and preparation method thereof
  • A quantum dot enhanced film with excellent optical effect and preparation method thereof
  • A quantum dot enhanced film with excellent optical effect and preparation method thereof

Examples

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Effect test

Embodiment 1

[0048] Embodiment 1 Using ternary quantum dots as quantum dot materials, the quantum dot enhanced film method with excellent optical effect provided by the present invention includes:

[0049] Step 1, preparing ternary quantum dot-PMMA colloid;

[0050] First, 0.5mmol CdO, 5mmol Zn(Ac) 2, 3.5ml of oleic acid and 10ml of octadecene (1-octadecene, ODE for short) were put into a four-neck flask, vacuumed for 40min, heated to 100°C; ventilated three times, heated to 295°C, and 10mmol of high-purity sulfur S Stir and heat with 20ml ODE at 120 degrees Celsius to prepare a mixed solution of S and ODE with a concentration of 0.5mmol / ml, inject 1ml of the mixed solution of S and ODE into the four-necked flask; control the temperature at 315℃, keep it warm for 150min to 20min, inject 1mmolSe and triphosphate Butyl phosphate (Tributyl phosphate, referred to as TBP) mixture; keep warm for 40min, the temperature is controlled at 300°C, add dropwise 1ml of 0.5mmol / ml S and ODE mixed soluti...

Embodiment 2

[0062] Embodiment 2 Using ZnSe quantum dots as the material, the quantum dot enhanced film method with excellent optical effect provided by the present invention includes:

[0063] Step 1, prepare ZnSe quantum dot-PMMA colloid;

[0064] First, weigh 0.1mmol of zinc-containing compounds such as zinc stearate, 0.5mmol of Se powder, and 10ml of ODE solution into a four-neck flask; heat to 100°C, vacuumize for 40min; ventilate three times, heat to 260°C; Temperature, add 0.6ml oleylamine; 2.5mmolZn(Ac) 2 , 3ml oleic acid and 7ml ODE were heated to 120°C and dissolved to prepare Zn(OH) 2 solution, at a temperature of 260°C for 5min, add 0.4ml of the Zn(OH) 2 solution; repeat the previous step three times; keep warm for 30 minutes, cool to room temperature, and complete the preparation of the ZnSe quantum dot material;

[0065] Among them, zinc-containing compounds also include: anhydrous zinc acetate, zinc oxide, zinc chloride, zinc sulfide, zinc sulfate, etc.

[0066] Then, th...

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Abstract

The invention belongs to the liquid crystal display technical field and relates to a quantum dot reinforced film with excellent optical effects and a preparation method of the quantum dot reinforced film. The preparation method includes the following steps that: a quantum dot material is prepared, the quantum dot material is combined with PMMA, so that quantum dot-PMMA colloid can be obtained; a PET (polyethylene terephthalate) material is adopted to prepare a water and oxygen barrier layer; and the quantum dot-PMMA colloid is tiled on the water and oxygen barrier layer, and another water and oxygen barrier layer covers the quantum dot-PMMA colloid, so that a quantum dot film layer can be formed; the quantum dot film layer is cured; an adhesive made from optical silica gel and epoxy resin is adopted to encapsulate the quantum dot film layer, so that the quantum dot reinforced film with the excellent optical effects can be obtained. With the quantum dot reinforced film with the excellent optical effects prepared by using the method of the invention adopted, the problems of poor optical effects, such as large optical loss, short preservation time, short service life, low luminous efficiency, low color purity and narrow color gamut of an ordinary quantum dot reinforced film can be solved. Since the quantum dot reinforced film has excellent optical effects and can be produced in a batched manner, the preparation method of the quantum dot reinforced film is an effective method of quantum dot film industrialization.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a quantum dot enhanced film with excellent optical effects and a preparation method thereof. Background technique [0002] Liquid Crystal Display (LCD for short) has become the dominant flat panel display technology. Since LCDs do not emit light themselves, they require a backlight. To widen the color gamut of LCDs, several new backlight technologies have been developed. [0003] In recent years, a new type of product that uses quantum dot optical film to realize high color gamut LCD has received more and more attention. Quantum dot film is a spherical nano-sized quantum dot material film composed of quantum dots such as LnP or ZnSe, which enhances the backlight effect of LCD through the luminous characteristics of quantum dots, and the color effect produced is generally 50% higher than that of liquid crystal screens. It doesn't add much, the liquid crystal cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/50B32B27/36B32B7/12
CPCB32B7/12B32B27/36H01L33/50
Inventor 纪丽珊张虚谷魏居富
Owner 厦门世纳芯科技有限公司