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.
CN104253192BInactive Publication Date: 2018-07-03FENG CHIA UNIVERSITY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
FENG CHIA UNIVERSITY
Publication Date
2018-07-03
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a light-emitting element, comprising: a light source body, a lead frame, an LED crystal grain, a Zener diode, a light-transmitting layer, and a photonic crystal film. The lead frame is placed at the bottom of the light source body, the LED die is placed above the lead frame, the light-transmitting layer is placed above the light source body, and at least one wire is electrically connected to the LED die and the Zener diode , The photonic crystal film is placed on the surface of the LED die and the inner surface of the light source body, and the characteristics of the photonic crystal film are used to increase the luminous efficiency.
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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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