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Light emitting diode

A light-emitting diode, dimethyl siloxane technology, applied in electrical components, electrical solid-state devices, circuits, etc., to achieve the effects of serious light decay, obvious effects and simple methods

Inactive Publication Date: 2009-09-16
NINGBO ANDY OPTOELECTRONIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 die. The light-emitting diode die is fixed on the holder. A layer of light-transmitting medium is provided above the light-emitting surface of the light-emitting diode die. A liquid viscous first component and a second component are formed by mixing, wherein the first component is polydimethylsiloxane, and the main composition of the second component is dimethylsiloxane , Copolymer of methyl hydrogen siloxane and vinyl siloxane (

[0015]

[0016] ), and also contains r-(2,3-glycidoxy)propyltrimethoxysilane (r-glycidyl ether propyltrimethoxysilane) (molecular structural formula:

[0017]

[0018] ) And triethoxymethylsiloxane (molecular structural formula:

[0019]

[0020] ). 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% (this embodiment Pre...

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Abstract

A light-emitting diode, including a bracket and a light-emitting diode grain, the light-emitting diode grain is fixed on the bracket, a layer of light-transmitting medium is arranged above the light-emitting surface of the light-emitting diode grain, and the light-transmitting medium is composed of a first group part and the second component, wherein the first component is polydimethylsiloxane, and the second component is mainly composed of dimethylsiloxane, methylhydrogensiloxane A copolymer formed with vinyl siloxane, the weight content of the copolymer in the second component is 94% to 99%, wherein the weight content of dimethyl siloxane is 84% ​​to 90%, methyl The weight content of base hydrogen siloxane is 4%-9%, and the weight content of vinyl siloxane is 2%-7%.

Description

【Technical Field】 [0001] The invention relates to a light-emitting diode, more specifically, to a light-emitting diode with low light attenuation and long life. 【Background technique】 [0002] Light-emitting diode is a kind of semiconductor light-emitting device, which is widely used as indicator light and display screen. Light-emitting diodes are known as the fourth-generation lighting source to replace fluorescent lamps and incandescent lamps. The theoretical life of the light-emitting diode is about 100,000 hours. However, when the light-emitting diode emits light after passing the positive and negative voltages at both ends, it generates a certain amount of heat. If the heat is not quickly conducted out, it will heat up around the chip. On the one hand, the temperature is higher than the junction temperature of the chip, causing the chip itself to fail; on the other hand, it causes the surrounding packaging materials, such as the insulating glue (silver glue) on the bottom of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/00H01L23/29
Inventor 占贤武
Owner NINGBO ANDY OPTOELECTRONIC CO LTD