Quantum dot reflective material and preparation method and application thereof

A technology of reflective materials and quantum dots, applied in the direction of light source, lighting and heating equipment, semiconductor devices of light-emitting elements, etc., to achieve the effect of high light efficiency, low color temperature deviation, and avoiding light loss

Pending Publication Date: 2021-11-30
厦门市米宫科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Similarly, the scheme of using blue chips and phosphors on LED backlight-based display devices still has a big deficiency in light conversion rate.

Method used

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  • Quantum dot reflective material and preparation method and application thereof
  • Quantum dot reflective material and preparation method and application thereof
  • Quantum dot reflective material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] 1. Preparation of quantum dot dispersion

[0069] Quantitative red light quantum dots and dispersant were weighed and dissolved in cyclohexane solution, ultrasonicated and vibrated until the quantum dots were dissolved. Then stir the dispersion until uniformly dispersed for use.

[0070] 2. Preparation of quantum dot reflective adhesive

[0071] Add the quantum dot dispersion liquid quantitatively to the epoxy resin stirred at high speed at a uniform speed, and continue to stir until fully dispersed.

[0072] 3. Molding

[0073] After devolatilizing the residual organic solvent, impregnate the quantum dot reflective glue on the surface of the high polymer resin to form the quantum dot reflective layer 2; finally, cure the protective layer 3 on the surface of the cured quantum dot reflective layer 2, and dry it to the final shape.

Embodiment 2

[0075] 1. Preparation of quantum dot dispersion

[0076] Quantitative red light quantum dots and dispersant were weighed and dissolved in cyclohexane solution, ultrasonicated and vibrated until the quantum dots were dissolved. Then stir the dispersion until uniformly dispersed for use.

[0077] 2. Preparation of quantum dot reflective adhesive

[0078] Add the quantum dot dispersion to the high-speed stirring silica gel quantitatively at a uniform speed, and continue stirring until fully dispersed.

[0079] 3. Molding

[0080] After devolatilizing the residual organic solvent, print the quantum dot reflective glue on the surface of the paper to form the quantum dot reflective layer 2; finally, cure the protective layer 3 on the surface of the cured quantum dot reflective layer 2, and dry it to the final shape.

Embodiment 3

[0082] 1. Preparation of quantum dot dispersion

[0083] Weigh red, green photon quantum dots and dispersant in a mass ratio of 5:3 and dissolve them in cyclohexane solution, sonicate and vibrate until the quantum dots dissolve. Then stir the dispersion until uniformly dispersed for use.

[0084] 2. Preparation of quantum dot reflective adhesive

[0085] Add the quantum dot dispersion liquid to the high-speed stirring polyurethane quantitatively at a uniform speed, and continue stirring until fully dispersed.

[0086] 3. Molding

[0087] After devolatilizing the residual organic solvent, sputter the quantum dot reflective glue on the surface of PE to form the quantum dot reflective layer 2; finally, cure the protective layer 3 on the surface of the cured quantum dot reflective layer 2, and dry it to the final shape.

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Abstract

The invention relates to a quantum dot reflective material and a preparation method and application thereof. The reflective material prepared by the method comprises a base layer, and a quantum dot reflective layer is arranged on the base layer. The material can be widely applied to reflecting cups, reflecting sheets and other materials. Based on the quantum dot reflective layer on the surface of the quantum dot reflective cup/reflective sheet, the LED light source can be excited to emit light at a non-direct angle, and the light is converted into spectral color light lacking in a color rendering area, so that the overall color rendering index of the light source using the quantum dot reflective material is improved.

Description

technical field [0001] The invention relates to the field of reflective materials, in particular to a quantum dot reflective material and its preparation method and application. Background technique [0002] The color rendering index is an index used to evaluate the ability of the light source to express the original color of the material. At present, the commonly used LED lighting sources are mostly white light based on the excitation of yellow phosphor powder by blue light chips. Due to the lack of red light and green light components, this technology has the inherent defect of low color rendering index. At present, in order to improve the color rendering index of LED lighting fixtures, common solutions in the industry include three primary color phosphor powder technology, white LED red light compensation method, and dual blue light chip plus phosphor powder. These solutions are all based on the technology of adding phosphors of different wavelengths to the blue LED chi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V7/30F21V9/32G09F9/30F21Y115/10
CPCF21V7/30F21V9/32G09F9/30F21Y2115/10
Inventor 不公告发明人
Owner 厦门市米宫科技有限公司
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