Light source structure of luminous diode

Abstract

A light source structure of LED contains circuit substrate, red light LED chip, green light LED chip, blue light LED chip, control IC chip and package material. Said invention is a high controllable and low cost light source and can be used for electronic device demanding white light source.

Description

technical field [0001] The present invention relates to a light source structure, in particular to a light source with high regulation flexibility and low manufacturing cost, which can be provided for electronic devices with white light source requirements, that is, a light emitting diode (LED, light emitting diode) light source Constructed to meet the lighting requirements required by electronic devices. Background technique [0002] As generally known by the general public, white light source is a light source device that is widely demanded by electronic devices. Compared with the traditional RGB three-color light-emitting diodes that emit light separately, it is smaller in size and has the advantage of practical application. Its development potential can be greatly improved. It is said that it has the practical value of partially replacing the traditional three-color light source, especially in the markets of home scanning, fax machines, mobile phones, PDAs and LCD screen...

AI Technical Summary

Problems solved by technology

[0004] However, this known technology is mainly characterized by blue light-emitting diode chip 12 and yellow phosphor powder 14, but because the raw material of yellow phosphor powder 14 needs to be obtained, white light-emitting diodes cannot be made at a very low cost at present. It is a major deficiency, and the control range of white light color temperature in this implementation is narrow, which limits the application effect

[0005] see figure 2 As shown, it is a known red, green and blue (RGB) light-emitting diode mixing method for emitting white light, wherein the three-color light-mixing light-emitting diode 2 controls the color temperature of light emission with an external circuit, as shown in the red light controller 21, Green light controller 22 and blue light controller 23, in order to control the color temperature of red light emitting diode 26, green light emitting diode 27 and blue light emitting diode 28 etc.; figure 1 The white light-emitting embodiment is easy to control the color temperature, but its disadvantage is that it takes up too much space for the external control circuit, thus increasing the manufacturing cost

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