LED

A technology of light-emitting diodes and phosphor layers, which is applied in electrical components, electrical solid-state devices, circuits, etc., can solve the problems of complex color matching of light-emitting diodes

Inactive Publication Date: 2012-07-11
ZHANJING TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of light-emitting diode containing three-color light-emitting diode chips has better color rendering performance. However, when this kind of light-emitting diode uses red, green, and blue three-color light to mix white light, it is necessary to control the operating current of each color light-emitting diode chip separately, so as to adjust each color. The distribution ratio of light is used to mix white light, which makes the color matching of this kind of light-emitting diode more complicated.

Method used

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Embodiment Construction

[0024] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] see figure 1 , the light emitting diode 10 of the embodiment of the present invention includes a base 11 , a light emitting diode chip 12 , a packaging body 13 , and a phosphor layer 14 .

[0026] The base 11 includes a base 110 , a reflective cup 112 disposed on the base 110 , and a first electrode 114 and a second electrode 116 located on two sides of the base 110 .

[0027] The base 110 and the reflective cup 112 can be made of LCP (Liquid Crystal Polymer, i.e. liquid crystal polymer) material, and can also be manufactured separately for different materials, such as the reflective cup 112 is made of LCP material, and the base 110 is a silicon substrate, plastic substrate or ceramic substrate.

[0028] The first electrode 114 and the second electrode 116 are made of metal material, bent into a U-shape, and oppositely disposed on ...

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Abstract

The invention relates to an LED, which includes a base, an LED chip positioned on the base, and a light-transmitting packaging body covering the LED chip, wherein a fluorescent powder-covered layer is arranged on a light-emitting path of the LED chip; the fluorescent powder-covered layer includes a plurality of red fluorescent powder areas, a plurality of green fluorescent powder areas and a plurality of blue fluorescent powder areas; the red fluorescent powder areas, the green fluorescent powder areas and the blue fluorescent powder areas are arranged alternately in a first direction and a second direction which are mutually perpendicular to form a matrix; and any two fluorescent powder areas with the same color in the first direction are not adjacent, and any two fluorescent powder areas with the same color in the second direction are not adjacent. The LED has the advantages of high color rendering and simplicity in light distribution.

Description

technical field [0001] The invention relates to a light emitting diode, in particular to a white light emitting diode. Background technique [0002] Some white light-emitting diodes currently on the market use a blue-emitting light-emitting diode chip and a yellow phosphor powder in conjunction with each other. The yellow light generated by the yellow light phosphor excited by the blue light is mixed with the blue light that is not absorbed by the yellow light phosphor powder. white light. However, the color rendering of white light obtained in this way is insufficient and cannot meet specific light extraction requirements. [0003] In order to improve the color rendering of light-emitting diodes, there are also some white light-emitting diodes that arrange red light-emitting diode chips, green light-emitting diode chips, and blue light-emitting diode chips in the same package structure, and use red, green, and blue three-color light to mix white light. This kind of light-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/48H01L33/50H01L33/60
CPCH01L33/507H01L33/504H01L33/60H01L2224/48091H01L2224/48247H01L2924/00014
Inventor 方荣熙许时渊
Owner ZHANJING TECH SHENZHEN
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