White light diode and manufacturing method thereof

A manufacturing method and technology for diodes, applied in electrical components, circuits, semiconductor devices, etc., can solve the problems of short service life, unstable luminescence properties, and easy deterioration of white light diodes, and achieve the effect of prolonging service life and strengthening chemical inertness.

Active Publication Date: 2010-12-29
OCEANS KING LIGHTING SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a white light diode and its manufacturing method, aiming to solve the problems of easy deterioration, short service life and unstable luminous properties of existing white light diodes

Method used

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  • White light diode and manufacturing method thereof
  • White light diode and manufacturing method thereof
  • White light diode and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Dip fritted glass into 1×10 -4 mol / L rhodamine 6G ethanol solution, take out after fully absorbing this solution, dry, obtain porous glass, according to figure 1 The white light emitting diode is prepared by encapsulating in a manner, and the white light emitting diode of the present invention includes a semiconductor light emitting chip 1 , an insulating material 2 , an electrode 3 , a light emitting material 4 , and a lead 5 . In this embodiment, the main emission peak wavelength of the semiconductor light-emitting chip 1 is 468.7 nm, and the light-emitting material 4 is selected from the porous glass containing rhodamine 6G prepared in this embodiment. The porous glass is directly fixed on the semiconductor light-emitting chip with glue to obtain the white light-emitting diode provided by the embodiment of the present invention. The measured optical parameters of the white light emitting diode are shown in Table 1. The light efficiency is 55.07lm / W, the color coordi...

Embodiment 2

[0033] Dip the fritted glass into a 5×10 -5 mol / L rhodamine 6G ethanol solution, after fully absorbing the solution, take out and dry to obtain porous glass. The manufacturing method of the white light emitting diode of the present embodiment is the same as that of embodiment 1. The optical parameters of this white light emitting diode are shown in Table 1. Its luminous efficacy is 58.67lm / W, its color coordinates are (0.4138, 0.3619), and its color temperature is 3054K. Part of the blue light emitted by the blue chip excites the porous glass containing rhodamine 6G, causing the porous glass to emit yellow-red light, and the yellow-red light is combined with the remaining blue light emitted by the blue chip to form white light.

Embodiment 3

[0035] Dip the fritted glass into a 2×10 -5 mol / L rhodamine 6G ethanol solution, after fully absorbing the solution, take out and dry to obtain porous glass. The manufacturing method of the white light emitting diode of the present embodiment is the same as that of embodiment 1. The optical parameters of this white light-emitting diode are shown in Table 1. Its luminous efficacy is 55.77lm / W, its color coordinates are (0.3834, 0.3334), and its color temperature is 3515K. Part of the blue light emitted by the blue chip excites the porous glass containing rhodamine 6G, causing the porous glass to emit yellow-red light, and the yellow-red light is combined with the remaining blue light emitted by the blue chip to form white light.

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Abstract

The invention belongs to the technical field of photoelectricity, and provides a white light diode and a manufacturing method thereof. The white light diode comprises a light-emitting chip and porous glass which is encapsulated on the light-emitting surface of the light-emitting chip and contains an organic fluorescent material. As for the white light-emitting dioxide in the invention, the porous glass is used as a carrier for the organic fluorescent material to encapsulate so as to manufacture the white light-emitting diode, and as the porous glass has strong chemical inertness, the photochemical reaction between the organic fluorescent material and the porous glass as well as nonradiative energy transfer due to the photochemical reaction are prevented, thus maintaining higher luminous efficiency for the organic fluorescent material, improving the whole stability and prolonging the service life of the white light-emitting diode.

Description

technical field [0001] The invention belongs to the field of optoelectronic technology, and in particular relates to a white light diode and a manufacturing method thereof. Background technique [0002] With the development of semiconductor lighting technology (LED), the development of the fourth generation of electric light source lighting - white LED devices has become the focus of research by various countries. As a substitute for traditional lighting, white light LED devices are expected to have broader prospects due to their high efficiency, energy saving, and long service life. [0003] The packaging of existing white light LEDs mainly adopts blue light chip and YAG phosphor powder packaging or ultraviolet chip and R, G, B tricolor phosphor powder packaging to generate white light. Due to the narrow selection range of practical inorganic fluorescent materials and the problem of low light conversion efficiency, organic fluorescent materials with various materials, easy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/00
Inventor 周明杰马文波
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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