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Light-emitting device and making method thereof, making system, packaging device and light emitting source, backlight module and display device

A technology for a light-emitting device and a manufacturing method, which is applied to the structure of a fluorescent layer and its production, and can solve the problems of uneven mixing of luminescent powder particles and adhesives, reduction of luminous efficiency and uniformity of luminous light, and easy rework. Ease of manufacture and cost reduction

Active Publication Date: 2005-11-02
东莞市乐顺光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The object of the present invention is to provide a light-emitting device and its manufacturing method, a packaging device for a light-emitting device, a light-emitting source, a backlight module, a display device, and a manufacturing system for a light-emitting device, so as to solve the problems in the known technology by adding an adhesive Or the implementation of electrophoretic technology can form the problem of the structure of the fluorescent layer attached to the surface of the light-emitting diode, and can solve the problem of reduced luminous efficiency and luminous uniformity due to uneven mixing of luminescent powder particles and adhesives

Method used

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  • Light-emitting device and making method thereof, making system, packaging device and light emitting source, backlight module and display device
  • Light-emitting device and making method thereof, making system, packaging device and light emitting source, backlight module and display device
  • Light-emitting device and making method thereof, making system, packaging device and light emitting source, backlight module and display device

Examples

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Embodiment 1

[0095] Firstly, the yttrium aluminum garnet (YAG for short) phosphor produced by Nichia Corporation and pure water are uniformly mixed with an ultrasonic oscillator to form a dispersion of yttrium aluminum garnet (YAG for short) phosphor ; Then put the produced gallium nitride (GaN) grains into this yttrium aluminum garnet (yttrium aluminum garnet, referred to as YAG) dispersion and let it stand for about 20 minutes, so that the yttrium aluminum garnet (yttrium aluminum garnet) in the dispersion The aluminum garnet (YAG for short) phosphor slowly deposits on the surface of the gallium nitride (GaN) grain, and at this time, the liquid level of the yttrium aluminum garnet (YAG for short) dispersion is higher than that of the gallium nitride (GaN) grain. grains, to form a uniform layer of yttrium aluminum garnet (yttrium aluminum garnet, referred to as YAG) phosphor particle distribution on the surface of gallium nitride (GaN) grains; then carry out the first drying step at a dryi...

Embodiment 2

[0097] Firstly, the yttrium aluminum garnet (YAG for short) phosphor produced by Nichia Corporation and alcohol are uniformly mixed with an ultrasonic oscillator to form a dispersion of the yttrium aluminum garnet (YAG for short) phosphor; Then put gallium nitride (GaN) crystal grains into the yttrium aluminum garnet (YAG for short) dispersion liquid and let it stand for about 20 minutes, so that the yttrium aluminum garnet (yttrium aluminum garnet, short for short) in the dispersion liquid YAG) phosphor is slowly deposited on the surface of the gallium nitride (GaN) grain, and at this time, the liquid level of the yttrium aluminum garnet (yttrium aluminum garnet, referred to as YAG) dispersion is higher than that of the gallium nitride (GaN) grain. A layer of uniform yttrium aluminum garnet (yttrium aluminum garnet, referred to as YAG) phosphor particle distribution is formed on the surface of gallium nitride (GaN) crystal grains; then the first drying step is carried out at a...

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Abstract

The invention relates to a luminous apparatus and its making method, manufacturing system, sealing device, luminous source, aphototropism module and display device; the said luminous comprises luminous semiconductor device and fluorescence powder layer placed on the optical paths of the luminous semiconductor device, and some parts of the fluorescence powder layer are coagulum without binding agent. The making method comprises: providing miscible liquids with base materials; removing liquids after stewing for a while to reduce the distance of the fluorescence powder to form the coagulum and be on the base materials without binding agent. Also provides a manufacturing system for luminous apparatus, comprising: container, imbedding device, liquids providing device, agitating device and liquids removing device.

Description

technical field [0001] The present invention relates to a light-emitting device and a manufacturing method thereof, and in particular to a structure of a fluorescent layer of the light-emitting device and a manufacturing method thereof, as well as a packaging device, a light-emitting source, a backlight module and a display device of the light-emitting device. Background technique [0002] Light Emitting Diode (LED for short) is widely used in various display products because of its advantages of high brightness, small size, light weight, unbreakable, low power consumption and long life. Its light emitting principle is as follows : Apply voltage to the diode to drive electrons and holes in the diode to combine, and the energy generated by this combination is released in the form of light; in addition, phosphors can also be added to this structure to adjust the emission wavelength (color) with intensity. [0003] Among them, the emergence of white light-emitting diodes has e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/00
Inventor 郑为元吴裕朝
Owner 东莞市乐顺光电科技有限公司
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