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White LED preparation method and LED

A technology of light-emitting diodes and diodes, applied in the field of diodes, can solve the problems of difficult to ensure product quality in mass production, low color rendering index of white lights, cumbersome manufacturing process, etc., and achieve simple structure, improved concentration, and reasonable ratio Effect

Inactive Publication Date: 2011-01-26
东莞市勤望达光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the existing white light-emitting diodes on the market are complex in structure design, which leads to cumbersome manufacturing process and high cost. Moreover, the white light produced by it has a low color rendering index, a relatively short lifespan, and large dispersion of color regions, making it difficult to guarantee products. Quality and meet the requirements of mass production

Method used

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  • White LED preparation method and LED
  • White LED preparation method and LED
  • White LED preparation method and LED

Examples

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Embodiment

[0041] Example: see figure 1 and figure 2 , the present embodiment provides a method for preparing a white light emitting diode, which includes the following steps:

[0042] (1) Prepare raw materials: raw materials include two-component silica gel A, two-component silica gel B, fluorescent powder and red powder;

[0043] (2) Weight ratio: The weight ratio of the two-component silica gel A, the two-component silica gel B, the fluorescent powder and the red powder is:

[0044] 1:4:X:Y

[0045] Among them, X is 0.15-0.20, and Y is 0.003-0.006;

[0046] (3) Prepare fluorescent glue 2: uniformly mix the raw materials of two-component silica gel A, two-component silica gel B, fluorescent powder, and red powder with a good weight ratio to prepare fluorescent glue 2;

[0047] (4) Glue injection: prepare a diode bracket 1 with a cup body 11 on the top and a blue chip 3 at the bottom of the cup body 11, inject the fluorescent glue 2 into the cup body 11 of the diode bracket 1 ;

...

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Abstract

The invention discloses a white LED preparation method which comprises the following steps of: (1) preparing raw materials; (2) weighing and proportioning; (3) preparing fluorescent gel; (4) injecting the gel; (5) roasting; and (6) obtaining the finished product. After the roasting step is completed, the finished product of the white LED is prepared. The invention also discloses an LED prepared by using the LED preparation method. The method provided by the invention has simple manufacturing process, low cost and high product quality, and the requirement of large-scale production is satisfied. According to the LED provided by the invention, the structure is simple, the fluorescent gel has reasonable proportioning, not only the concentricity, the color rendering index and the luminous flux of a white color region is improved and discreteness is reduced, but also the service life is greatly prolonged.

Description

technical field [0001] The invention belongs to the field of diodes, and in particular relates to a preparation method of a white light emitting diode and a light emitting diode thereof. Background technique [0002] Light Emitting Diode (LED for short) is a component made of semiconductor materials. Because it can convert electrical energy into light, it is a tiny solid-state light source. It not only has small size, long life, and high driving voltage. It is low in weight, fast in response, and excellent in shock resistance, and can meet the design requirements of lightness, thinness, shortness, and smallness, and is widely used in various products in daily life. The blue chip is mixed with fluorescent powder and energized to emit white light, which will gradually replace incandescent and fluorescent lamps in the future. This kind of semiconductor white light has the advantages of small size, long life, energy saving, and no mercury and other heavy metals to pollute the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/00H01L33/50
Inventor 黄勇周圣武
Owner 东莞市勤望达光电科技有限公司
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