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Light-emitting diode element and its wavelength conversion material

A technology of wavelength conversion materials and light-emitting diodes, which is applied in the direction of light-emitting materials, electrical components, photovoltaic power generation, etc., and can solve problems such as easy consumption of light and reduced brightness of light-emitting diode components 100

Active Publication Date: 2007-11-14
LEXTAR ELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such an approach is easy to consume part of the light quantity, thereby causing the brightness of the LED element 100 to decrease.

Method used

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  • Light-emitting diode element and its wavelength conversion material
  • Light-emitting diode element and its wavelength conversion material
  • Light-emitting diode element and its wavelength conversion material

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0072] FIG. 3 is a schematic diagram of a wavelength converting material according to an embodiment of the present invention. Referring to FIG. 3 , the wavelength conversion material 300 mainly includes a wavelength conversion active body 310 and a light scatterer 320 . The wavelength conversion activator 310 is adapted to accept a wavelength λ 1 Excited by the light, and emit a wavelength λ 2 ray, where λ 1 ≠λ 2 . The material of the wavelength conversion activator 310 is, for example, a fluorescent material, a phosphorescent material, a dye, or a combination of the above three materials. In more detail, the components of the wavelength conversion activator 310 are, for example:

[0073] (A) 2x (B) 2y (C) 2z (D) 3x+sy+tz : (E)

[0074]Among them, 0≤x≤15, 0≤y≤9, 0≤z≤4, s is the valence of B component, t is the valence of C component, and A is selected from yttrium (Y), cerium (Ce), Terbium (Tb), Gadolinium (Gd), Scandium (Sc), Samarium (Sm), Europium (Eu), Aluminum ...

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Abstract

A wavelength-switch material includes a wavelength-switch accator and a light-scattering object. The wavelength-switch accator is adapted to be aroused by lights of a wavelength of r1, and then it emits lights of a wavelength of r2.The light-scattering object is equipped with the wavelength-switch accator. The light-scattering object is used to emit the first light and the second light emitted on its surface. The light-scattering accator object on the wavelength-switch accator can increase the separation of the neighbor wavelength-switch accator, so when these wavelength-switch materials are irradiated by lights of wavelength of r1, these wavelength-switch accator can emit lights of wavelength of r2. So when the glowing diode components have this kind of wavelength-switch materials, they have pretty high brightness.

Description

technical field [0001] The invention relates to a light-emitting device and its wavelength conversion material, in particular to a high-brightness light-emitting device and its wavelength conversion material. Background technique [0002] FIG. 1 is a schematic diagram of a conventional LED device. Referring to FIG. 1 , the LED device 100 includes a carrier 110 , a blue LED chip 120 and a yellow fluorescent glue 130 . The blue light emitting diode chip 120 is disposed on the carrier 110 and electrically connected to the carrier 110 through the wire 140 , wherein the blue light emitting diode chip 120 is suitable for emitting blue light. [0003] The yellow fluorescent colloid 130 is directly covered on the blue light-emitting diode chip 120 and is located within the irradiation range of the blue light. The yellow fluorescent colloid 130 includes a transparent material 132 and a yellow fluorescent substance 134, wherein the yellow fluorescent substance 134 is uniformly mixed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/77H01L51/46
CPCY02E10/549
Inventor 黄文正张志清谢祥政何昕桦
Owner LEXTAR ELECTRONICS CORP