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LED device capable of regulating colour temp

A technology of light-emitting diodes and diodes, which is applied in the direction of electrical components, electric solid-state devices, circuits, etc., and can solve the problems of difficult mixing of uniform white light and different light colors

Inactive Publication Date: 2007-04-18
林志泽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this light-emitting diode device 30, because the light colors in different directions are different, it is not easy to mix uniform white light.

Method used

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  • LED device capable of regulating colour temp
  • LED device capable of regulating colour temp
  • LED device capable of regulating colour temp

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Embodiment Construction

[0017] Relevant technical contents and detailed description of the present invention are as follows in conjunction with accompanying drawing now:

[0018] 2A is a side view of an adjustable color temperature LED device 10 according to a preferred embodiment of the present invention. The LED device 10 mainly includes a substrate 100, at least one blue LED unit 120 on the substrate 100, at least one red The light emitting diode unit 122 and at least one green light emitting diode unit 124, as well as the yellow phosphor coating 126 covering each light emitting diode unit, are located under the substrate 100 and correspond to the electrodes 140, 142 and 144.

[0019] 2B is a schematic diagram of an adjustable color temperature LED device 10 according to a preferred embodiment of the present invention, wherein the anodes of the blue LED unit 120, the red LED unit 122 and the green LED unit 124 are respectively connected to the electrode 140. , 142 and 144 , while the cathodes of ...

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PUM

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Abstract

The invention is an LED device able to regulate color temperature, mainly additionally providing at least a red LED cell and at least a green LED cell outside a white LED device comprising blue LED cell and yellow fluorescent powder coating, to change white light color temperature, where the yellow fluorescent powder coating can only cover the blue LED cell, or additionally cover the red and green LED cells. Additionally, the blue, red and green LED cells can be separately driven to further improve color temperature.

Description

technical field [0001] The invention relates to a light-emitting diode device, in particular to a light-emitting diode device with adjustable color temperature, which is used to improve the color rendering of emitted light. Background technique [0002] A light emitting diode (LED, light emitting diode) is a small solid-state light source with high luminous efficiency. Light-emitting diodes are semiconductor devices with long service life and high stability. They are suitable for various light sources, such as display light sources, backlight light sources, traffic lights, emergency exit lights, lighting decorations, etc. [0003] Due to various uses, the colors of the required light-emitting diodes have also developed from the traditional red, green, and blue to various colors. Taking the white light source as an example, one existing technology is to use multiple chip light-emitting diodes as the light source, and arrange the light-emitting components of red, green, and b...

Claims

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Application Information

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IPC IPC(8): H01L25/075H01L33/00H01L33/50
Inventor 林志泽
Owner 林志泽
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