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High-thermal conductivity quantum-dot LED

A quantum dot, high thermal conductivity technology, applied in semiconductor devices, electrical components, circuits, etc., can solve the problems that the oxygen permeability and water permeability cannot meet the requirements of the quantum dot working environment, the temperature of the quantum dot increases, and the luminous efficiency decreases. , to achieve the effect of solving the problem of luminous efficiency, reducing use and reducing pollution

Inactive Publication Date: 2018-07-27
HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the oxygen permeability and water permeability of the plastic support 12 and the packaging glue 16 are not up to the requirements of the quantum dot working environment, and the thermal conductivity of the plastic support 12 and the packaging glue 16 is low, causing the quantum dot temperature to rise, and the quantum dot Luminous efficiency decreases with increasing temperature

Method used

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Embodiment Construction

[0023] The core content of this patent is to ensure the heat dissipation of quantum dots through high thermal conductivity materials so that the temperature of quantum dots will not rise, and to provide quantum dots with an environment with low oxygen permeability and water permeability through the inorganic thin film encapsulation layer to ensure the luminous efficiency of quantum dots. The red fluorescent powder replaces the red quantum dots to reduce pollution. The specific implementation of the system will be further described below in conjunction with the drawings and examples.

[0024] An embodiment of a quantum dot LED with high thermal conductivity provided by the present invention will be described in detail below.

[0025] An embodiment of the present invention provides a high thermal conductivity quantum dot LED, such as figure 2 As shown, the high thermal conductivity quantum dot LED includes a bracket 21, an LED chip 22 fixed on the bracket 21 and connected to th...

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Abstract

The invention provides a high-thermal conductivity quantum-dot LED, which comprises a bracket, an LED chip and a silica gel body located at the upper side of the LED chip, wherein the LED chip is fixed on the bracket and connected with the bracket; an inorganic film packaging layer wraps the outside of the silica gel body; the inorganic film packaging layer is used for fixing the silica gel body and the LED chip; and multiple quantum dots and multiple high-thermal conductivity elements are dispersed into the silica gel body. According to the high-thermal conductivity quantum-dot LED, the problem of a failure of the quantum dots due to high temperature or a water oxygen environment is solved through mixed use of a high-thermal conductivity material and the quantum dots and a closed structure.

Description

technical field [0001] The invention relates to the technical field of LED lighting, in particular to a quantum dot LED with high thermal conductivity. Background technique [0002] Quantum dots are currently widely used in backlight products due to their narrow luminescence peaks and variable luminescence wavelengths. However, due to the exposure of quantum dots to water and oxygen, the fluorescence efficiency will decline rapidly and irreversibly. Therefore, the encapsulation of quantum dots needs to be well isolated from water and oxygen. The upper and lower sides of the current quantum dot diaphragm are composed of PET with a barrier film. To make the quantum dot film have stable optical properties and service life, the oxygen permeability of the barrier film needs to reach <10-1 cc / m^2.day, and the water permeability also needs to reach <10-1g / m^2.day . In addition, because quantum dots are sensitive to temperature, as the temperature rises, the wavelength of qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/50H01L33/56H01L33/64
CPCH01L33/502H01L33/504H01L33/56H01L33/641H01L33/501H01L33/52
Inventor 樊勇
Owner HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
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