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LED lamp bead capable of adjusting color temperature and packaging method thereof

A technology of LED lamp beads and color temperature, applied in electrical components, electric solid state devices, circuits, etc., can solve the problems of complex LED lamp bead production process, inability to accurately control the color, and light spots of LED lamp beads, etc. Large, easy-to-control, low-cost effects to manufacture

Inactive Publication Date: 2017-02-15
ZHONGSHAN LITI LIGHTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of LED lamp beads in this way is complicated, the color cannot be precisely controlled, and because the two colors are distributed in different areas, the LED lamp beads appear light spots when they are used.

Method used

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  • LED lamp bead capable of adjusting color temperature and packaging method thereof
  • LED lamp bead capable of adjusting color temperature and packaging method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An LED lamp bead with adjustable color temperature is obtained through the above-mentioned packaging method, and a blue light chip 3 and a CSP chip-scale package device 2 coated with a first fluorescent glue 4 are respectively installed on the LED bracket 1, and the CSP chip-scale package The device 2 and the blue light chip 3 are respectively connected with the first pair of positive and negative electrodes 6 and the second pair of positive and negative electrodes 7 to form the first circuit and the second circuit. The groove of the LED bracket 1 is covered with the first fluorescent glue 4 The CSP chip-scale packaging device 2 and the blue chip 3 are coated with the second fluorescent glue 5; wherein the concentration of the first fluorescent glue 4 is higher than the concentration of the second fluorescent glue 5, so that the CSP chip-scale packaging device 2 The color temperature of the light emitted after the blue light chip 3 is lit is 3000K, and the color temperat...

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Abstract

The invention discloses an LED lamp bead capable of adjusting color temperature and a packaging method thereof. The LED lamp bead capable of adjusting color temperature comprises an LED support, a CSP chip-level packaging device and a blue light chip on the LED support, and second fluorescent glue for filling the gap of the LED support and coating the CSP chip-level packaging device and the blue light chip, wherein the CSP chip-level packaging device is coated with first fluorescent glue; the first fluorescent glue and the second fluorescent glue have different fluorescent powder concentrations; the LED support comprises a first pair of positive and negative electrodes and a second pair of positive and negative electrodes; the CSP chip-level packaging device and the blue light chip are respectively communicated with the first pair of positive and negative electrodes and the second pair of positive and negative electrodes to form a first circuit and a second circuit; and the first circuit and the second circuit are controlled by different driving circuits. Color changes of the LED lamp bead capable of adjusting color temperature are easy to control, and the packaging method for the LED lamp bead capable of adjusting color temperature has a simple process, one-time dispensing and baking are needed, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the field of LED lighting, in particular to an LED lamp bead with adjustable color temperature and a packaging method thereof. Background technique [0002] In order to realize the adjustable color temperature of LED lamp beads, the traditional technology arranges two groups of chips in two independent areas on the LED bracket, and uses fluorescent glue with different phosphor powder concentrations to package the two groups of chips twice respectively. The driving current of the chip in each area can achieve the purpose of adjusting the color temperature. The production process of LED lamp beads in this way is complicated, the color cannot be precisely controlled, and because the two colors are distributed in different areas, light spots appear when the LED lamp beads are used. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a packaging method for LE...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L25/075H01L33/50
CPCH01L25/0753H01L33/508H01L2933/0033H01L2933/0041
Inventor 程胜鹏许瑞龙刘火奇
Owner ZHONGSHAN LITI LIGHTING TECH
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