White-light luminous diode

A technology of light-emitting diodes and diodes, applied in electrical components, electric solid-state devices, circuits, etc., can solve the problems of poor color saturation and display color temperature, low luminous efficiency, etc., and achieve the effect of good color saturation and display color temperature
CN1783521AInactive Publication Date: 2006-06-07CHUNGHWA PICTURE TUBES LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHUNGHWA PICTURE TUBES LTD
Publication Date
2006-06-07
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A white light LED includes a loader and a luminous unit on it, a second LED chip and phosphor powder, in which, the luminous unit is formed by connecting a first LED chip and a resistor element in series and the first LED chip is suitable for emitting a first color light, a second luminous LED chip is suitable for emitting a second color light and is parallel to the luminous unit, besides, the phosphor powder is set above the second luminous LED chip to generate a third color light excited by the chip.
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Description

technical field

[0001] The present invention relates to a light-emitting diode, and in particular to a three-wavelength white light-emitting diode. Background technique

[0002] Light-emitting diodes use III-V elements as the main material of the light-emitting layer, and apply current to the light-emitting layer to release excess energy in the form of light through the combination of electrons and holes, thereby achieving the purpose of light emission. Different from traditional lighting methods such as heating or discharging, since the lighting phenomenon of LEDs is cold lighting, their service life is longer, and no warm-up time (idling time) is required. In addition, light-emitting diodes also have the advantages of fast response speed, small size, low power consumption, low pollution (mercury-free), high reliability, and suitable for mass production, so they can be used in a wide range of fields. In recent years, due to the continuous improvement of the luminous effici...

Claims

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