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Method for making warm white light LED and light source made thereof

A production method and warm white light technology, which are applied in chemical instruments and methods, other chemical processes, electrical components, etc., can solve the problems of high price, high cost, and obstacles to the application of warm white LEDs, and achieve cost reduction and strong decorative effect. Effect

Inactive Publication Date: 2006-11-15
HE SHAN LIDE ELECTRONICS ENTERPRISE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is costly, because it requires not only yellow (YAG and other substances) phosphors, but also red phosphors, which are expensive, which has caused a huge obstacle to the application of warm white LEDs in the lighting market
In addition, the warm white LED produced by this method has a transparent and colorless shell, and the decorative effect is not good.

Method used

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  • Method for making warm white light LED and light source made thereof
  • Method for making warm white light LED and light source made thereof
  • Method for making warm white light LED and light source made thereof

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Embodiment Construction

[0013] The present invention will be further described below with reference to accompanying drawing:

[0014] refer to figure 1 , figure 2 , is the prior art warm white light LED of the present invention, and its pin support 5 is provided with blue chip 1, and the periphery of blue chip 1 is covered with yellow (substances such as YAG) and red fluorescent powder layer 2, and blue chip 1 is connected to the two poles of the lead frame 5 by the bonding wire 3, and the periphery of the chip 1 is packaged with colorless and transparent epoxy resin colloid 4. It is mainly composed of substances that emit blue wavelengths (including Ga, N, In, or Si, C, etc.), that is, the blue chip 1, which emits blue light with a wavelength of about 465nm, and the blue light passes through yellow (YAG and other substances) Adding the red phosphor layer 2 excites warm white light, and the warm white light passes through the colorless transparent shell 4 to the outside. The manufacturing process...

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PUM

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Abstract

This invention discloses warm white light LED making method and light source made by this method. The feature is that blue light wave length emitting substance (Ga, N, In, Si or C contained) is used as luminous layer to emit blue light of 455-475 wave length. White light is emitted by the blue light through yellow fluoresent material ( YAG and other substance contained ), then 2200K-3500K color temperature low color warm white light is generated by the white light mixed through amber transparent shell that prepared by A, B glue and R, Y toner. The amber shell is prepared as follow method, A glue (epoxide-resin glue hardener) to B glue (epoxide-resin glue) to R toner (red glue) to Y toner (yellow glue) equals to 1 to 1 to 0.01 to (0.002 to 0.005), they are mixed and molded, then baked. 2200-3500K different color temperatures warm white light LED can be made by changing R, Y toner ratio in the amber transparent shell. The warm white light LED cost can be reduced by this invention, so the warm white light LED decorative effect is improved.

Description

Technical field [0001] The invention relates to a light source and a manufacturing method thereof, in particular to an LED light source and a manufacturing method thereof. Background technique [0002] Warm white light-emitting diode components are produced by traditional technology, mainly made of substances that emit blue wavelengths (including Ga, N, In, or Si, C, etc.), and the light-emitting layer emits blue light at about 465, and passes through yellow (YAG and other substances) ) plus red fluorescent powder to stimulate warm white light, and the light emitted by the luminescent layer is transmitted to the outside world through the transparent shell. This method is costly, because it not only needs yellow (YAG and other substances) phosphors, but also red phosphors, which are expensive and cause huge obstacles to the application of warm white LEDs in the lighting market. In addition, the shell of the warm white LED produced by this method is transparent and colorless,...

Claims

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Application Information

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IPC IPC(8): C09K3/10H01L33/50
Inventor 樊邦弘
Owner HE SHAN LIDE ELECTRONICS ENTERPRISE CO LTD