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Light-emitting diode

A technology of light-emitting diodes and light-emitting surfaces, applied in electrical components, electrical solid-state devices, circuits, etc., can solve the problem of uneven light output of light-emitting diodes, and achieve the effect of reducing the total reflection effect and increasing the light extraction rate.

Inactive Publication Date: 2010-06-16
FU ZHUN PRECISION IND SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the light emitted by the LED is prone to total reflection at the interface between the package body of the LED and the outside air, which makes the light output of the LED uneven.

Method used

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  • Light-emitting diode
  • Light-emitting diode

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Embodiment Construction

[0007] Such as figure 1 As shown, the light emitting diode includes a base 10 , a light emitting diode die 20 and a first package body 30 . The base 10 includes an upper surface 11 and a lower surface 12 opposite to each other. A blind hole 13 is defined in the center of the base 10 , an inner wall 131 is formed around the periphery of the blind hole 13 , and a bottom surface 132 is formed at the bottom of the blind hole 13 . The blind hole 13 provides accommodating space for the light-emitting diode die 20 and the first package body 30, which is wide at the top and narrow at the bottom. The inner wall surface 131 of the base 10 is inclined radially inward from the upper surface 11 to the bottom surface 132, The first conductive column 24 and the second conductive column 25 spaced apart from each other are opened downwards from the bottom surface 132 of the base 10 and penetrate the base 10, that is, the first conductive column 24 and the second conductive column 25 respectiv...

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PUM

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Abstract

The invention relates to a light-emitting diode which comprises a light-emitting diode crystal grain and a first packaging body coated on the periphery of the light-emitting diode crystal grain, wherein the first packaging body comprises a light emitting surface, a plurality of depressions are formed on the light emitting surface, a second packaging body is filled in the depressions, a plurality of bulges made of materials of the second packaging body are arranged at the part of the light emitting surface without the depressions, and the depressions and the bulges are alternately arranged. Compared with the prior art, the second packaging body with the alternate depressions and the bulges is arranged on the light emitting surface of the first packaging body, thereby reducing the total reflection effect and increasing the light extraction efficiency.

Description

technical field [0001] The invention relates to a light emitting diode, in particular to an improved packaging structure of the light emitting diode. Background technique [0002] Light Emitting Diode (LED) has many characteristics such as environmental protection, high brightness, power saving, long life, etc., and will gradually become the main lighting source. However, the light emitted by the LED is prone to total reflection at the interface between the package body of the LED and the outside air, so that the light emitted by the LED is not uniform. Contents of the invention [0003] In view of this, it is necessary to provide a light-emitting diode with uniform light emission. [0004] A light-emitting diode, comprising a light-emitting diode crystal grain and a first packaging body covering the periphery of the light-emitting diode crystal grain, the first packaging body includes a light-emitting surface, and a number of depressions are opened on the light-emitting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/00
CPCH01L33/54H01L33/507H01L33/56H01L33/508H01L2224/45144H01L2224/48091H01L2924/181H01L2924/1815H01L2924/00012H01L2924/00014H01L2924/00
Inventor 张家寿
Owner FU ZHUN PRECISION IND SHENZHEN
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