Light-emitting Element

A technology of light-emitting components and light sources, applied in electrical components, semiconductor devices, electric solid-state devices, etc., can solve the problems of low efficiency and the luminous efficiency of white LEDs cannot exceed 150lm/W.
CN104253192AInactive Publication Date: 2014-12-31FENG CHIA UNIVERSITY
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
FENG CHIA UNIVERSITY
Publication Date
2014-12-31
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A light-emitting element provided by the present invention comprises a light source body, a conducting wire rack, LED grains, a Zener diode, a light transmission layer and a photonic crystal film. The conducting wire rack is arranged at the bottom of the light source body, the LED grains are arranged above the conducting wire rack, and the light transmission layer is arranged above the light source body. At least one conducting wire is connected with the LED grains and the Zener diode electrically, the photonic crystal film is arranged on the surfaces of the LED grains and the inner surface of the light source body, and the luminous efficiency is increased by utilizing the characteristics of the photonic crystal film.
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Description

technical field

[0001] The present invention relates to a structure of a compound white light emitting element, in particular to a light emitting element coated with a photonic crystal thin film inside a light source body. Background technique

[0002] The development of the global LED industry is based on white LEDs. The life of white LEDs is more than 10 times longer than that of traditional lamps, and the brightness is also improved. White LEDs can also solve the environmental problems of mercury contained in waste lamps. Therefore, , White LED is considered to be an important lighting device that will replace all fluorescent lamps and incandescent bulbs in the future. At present, the luminous efficiency of white LEDs is more than double that of traditional incandescent bulbs. Most of them are composed of blue light emitted by blue LED grains and yellow phosphor (yttrium aluminum garnet, YAG). After the layer emits blue light, the yellow phosphor can be excited to emit w...

Claims

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