Three-dimensional LED luminescent device

A technology of light-emitting devices and LED chips, which is applied in the direction of semiconductor devices, electrical components, circuits, etc., can solve the problems of difficulty in uniform expansion of injected current and heat dissipation, and achieve the effect of enhancing luminous efficiency and reliability and improving current expansion performance
CN104701437AInactive Publication Date: 2015-06-10WUHAN UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV
Publication Date
2015-06-10
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to a three-dimensional LED luminescent device and belongs to the field of a light emitting diode. The three-dimensional LED luminescent device comprises an LED chip and a radiating substrate, a p type ohmic contact electrode and an n type ohmic contact electrode are arranged on the LED chip; a plurality of electric conduction and heat conduction through holes are formed in the radiating substrate, an insulating layer, a seed layer and an electric conduction and heat conduction metal hole core are deposited on an inner wall of the electric conduction and heat conduction through hole in sequence; the p type ohmic contact electrode is welded to the electric conduction and heat conduction metal hole core. The three-dimensional LED luminescent device has the advantages that the volume of the LED luminescent device is reduced, the luminous efficiency and the heat dispersion are enhanced for the LED luminescent device, and reliability of the LED luminescent device is improved.
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Description

technical field

[0001] The invention relates to a three-dimensional LED light-emitting device, which belongs to the field of light-emitting diodes. Background technique

[0002] LED light-emitting devices can convert about 30% of electrical power into optical power, and the remaining 70% of electrical power is converted into heat energy. Therefore, enhancing the heat dissipation performance of LED light-emitting devices is crucial to improving the performance and reliability of LED light-emitting devices. In applications such as automotive headlights, stage lights, and projectors, high-intensity LED light sources are required. The luminous intensity and luminous flux of the LED can be increased by increasing the driving current of the LED light emitting device and the size of the LED light emitting device. However, as the size of the LED chip increases, it becomes more difficult for the injection current to spread uniformly in the LED chip, and it becomes more difficult to ...

Claims

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