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A kind of packaging method of white light LED that makes people feel comfortable

A packaging method and white light technology, applied in semiconductor devices, electrical components, circuits, etc., can solve the problems of reduced immunity, narrow white LED beam, etc., and achieve the effect of good light color quality performance

Active Publication Date: 2019-11-22
JIANGSU WENRUN OPTOELECTRONICS
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although according to the current domestic and foreign standards, LED lighting related products will not produce high-risk blue light hazards, but due to the narrow beam of white LEDs, especially the relatively concentrated energy in the blue band range, long-term exposure of LED lighting sources to the human body will cause serious harm. Irradiation effect, the latest research at home and abroad have shown that its "rich blue" spectral quality is likely to affect the human rhythm, thereby reducing immunity

Method used

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  • A kind of packaging method of white light LED that makes people feel comfortable
  • A kind of packaging method of white light LED that makes people feel comfortable
  • A kind of packaging method of white light LED that makes people feel comfortable

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0025] Such as figure 1 and image 3 As shown, a white light LED packaging method that makes people feel comfortable includes multiple LED chips, SMC brackets and fluorescent glue solutions, including the following steps:

[0026] Step 1. Set the LED chip in the bowl of the bracket. The LED chip is a blue LED chip with a peak emission band of 452.5-455nm. The LED chip is fixed on the SMC bracket with a die-bonding machine through insulating glue or silver glue. After completion, bake in an oven at 150-160°C for 2h±10min to completely fix the chip on the SMC bracket;

[0027] Step 2, using wire bonding technology to connect the positive and negative poles of the bracket through a gold wire bonding machine;

[0028] Step 3, dispensing glue. The fluorescent glue solution includes silica gel, yellow-green powder, red powder and KSF phosphor, wherein...

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Abstract

The invention provides a white light LED packaging method that makes people feel comfortable, including a plurality of LED chips, SMC brackets and fluorescent glue solution, including the following steps: setting the LED chips in the bowl cup of the bracket; Wire bonding technology is used to connect the positive and negative poles of the bracket; glue distribution; glue dispensing; the final packaged white LED color quality requirements control parameters are: color rendering index CRI ≥ 90, 80 ≤ color gamut area index GAI ≤ 100 , TV lighting index TLCI-2012≥90, special color rendering index R9≥50, the packaging method of the white light LED used in the present invention is comfortable to the senses, compared with the traditional method of making white light LED, the quality of light and color is better, and it can realize the A light environment that does not dazzle the eyes and makes people feel comfortable.

Description

technical field [0001] The invention relates to the technical field of LEDs, in particular to a method for encapsulating white light LEDs that makes people feel comfortable. Background technique [0002] LED light source is the fourth-generation light source. Because it is a solid-state light source, it is a green light source with the characteristics of environmental protection, energy saving, and long life. Recently, the harm of LED lighting sources to the human body has attracted everyone's attention. Because the LED lighting source is easy to irradiate the human body for a long time, it may cause photochemical hazards to the skin and eyes, near-ultraviolet hazards to the eyes, photochemical hazards to the retina, retinal thermal hazards, and skin thermal hazards. All of the above-mentioned exposure limits have made standard regulations. The current domestic and foreign standards include GB / T 20145-2006 / CIE S009 / E: 2002, IEC62471, IEC / TR 62778-2012, CTL-0744_2009-laser r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L25/075H01L33/50
CPCH01L25/0753H01L33/504H01L2933/0033H01L2224/48137
Inventor 刘三林
Owner JIANGSU WENRUN OPTOELECTRONICS
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