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Light emitting diode

A technology of light-emitting diodes and dimethylsiloxane, which is applied in the direction of electrical components, electrical solid devices, circuits, etc., to achieve obvious effects, improve serious light decay, and low cost

Inactive Publication Date: 2008-07-02
NINGBO ANDY OPTOELECTRONIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, light decay has become an important bottleneck limiting the application of light-emitting diodes

Method used

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  • Light emitting diode

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Embodiment Construction

[0014] The light-emitting diode disclosed in the present invention includes a bracket and a light-emitting diode grain. The liquid viscous first component and the second component are formulated, wherein the first component is polydimethylsiloxane, and the second component is mainly composed of dimethylsiloxane , a copolymer of methylhydrogen siloxane and vinyl siloxane ( ), also contains r-(2,3-glycidoxy) propyltrimethoxysilane (r-glycidyl ether propyltrimethoxysilane) (molecular structure: ) and triethoxymethylsiloxane (molecular structural formula: ). The weight content of the copolymer in the second component is 94% to 99% (preferably 98% in this embodiment), and the weight content of dimethylsiloxane is 84% ​​to 90% (in this embodiment is preferably 87%), the weight content of methylhydrogen siloxane is 4% to 9% (preferably 7% in this embodiment), and the weight content of vinyl siloxane is 2% to 7% (this embodiment preferably 4%). Also include r-(2,3-glycidoxy) p...

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Abstract

The invention relates to an LED, which includes a bracket and LED grains fixed on the bracket. A layer of light transmission medium is arranged above a light emission surface of the LED grains, wherein the light transmission medium is formed by preparing a first component of poly (dimethylsiloxane) and a second component of which the main composition is copolymer of dimethyl siloxane, methylhydrosiloxane and vinyl siloxanes. The weight content of the copolymer in the second component is 94 percent to 99 percent, wherein the weight content of the dimethyl siloxane is 84 percent-90 percent, the weight content of the methylhydrosiloxane is 4 percent-9 percent, and the weight content of the vinyl siloxanes is 2 percent-7 percent.

Description

【Technical field】 [0001] The invention relates to a light-emitting diode, more precisely, to a light-emitting diode with low light decay and long life. 【Background technique】 [0002] Light-emitting diode is a semiconductor light-emitting device, which is widely used as indicator lights, display screens, etc. Light-emitting diodes are known as the fourth-generation lighting source to replace fluorescent lamps and incandescent lamps. The theoretical lifespan of light-emitting diodes is about 100,000 hours. However, when the light-emitting diodes emit light after receiving positive and negative voltages at both ends, they will generate a certain amount of heat. If the heat is not conducted out quickly, it will heat up around the chip. On the one hand, the temperature is higher than the junction temperature of the chip, so that the chip itself fails; The light will be absorbed by the yellowed insulating glue (silver glue) or the resin or phosphor material encapsulated on the ...

Claims

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Application Information

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IPC IPC(8): H01L33/00H01L23/29
Inventor 占贤武
Owner NINGBO ANDY OPTOELECTRONIC CO LTD