A three-dimensional light source structure

Abstract

A novel three-dimensional light source structure includes a center chip, a horizontal chip, and a vertical chip, wherein the horizontal chip and the vertical chip are respectively connected to the center chip, electrodes between the horizontal chip and the center chip are correspondingly connected by the zinc chip, electrodes between the vertical chip and the center chip are correspondingly connected by the zinc chip, each of the center chip, the horizontal chip and the vertical chip are rectangular in cross section, and the lower surfaces are respectively provided with an epitaxial structure;P electrodes and N electrodes are respectively disposed around the center chip; P electrodes and N electrodes are respectively disposed on the left side surface and the right side surface of the horizontal chip; and P electrodes and N electrodes are respectively disposed on the upper side surface and the lower side surface of the vertical chip.

Description

technical field [0001] The invention relates to the field of semiconductor lighting, in particular to a three-dimensional light source structure. Background technique [0002] At present, there are three common processes for realizing white LEDs in production as follows: YAG phosphor is excited on the blue LED chip, and the yellow-green light and blue light it emits are synthesized into white light. However, the spectrum of white light emitted by this technology is missing The red part has poor color rendering, and it is difficult to meet the lighting requirements of low color temperature; using RGB three-color multiple chips or multiple devices to emit light and mix colors into white light, or use blue and yellow dual-chip complementary colors to produce white light, although this method can be passed Select the appropriate wavelength and intensity to obtain a better color rendering index, but the difference in chip performance makes the drive circuit too complicated and he...

AI Technical Summary

Problems solved by technology

[0002] At present, there are three common processes for realizing white LEDs in production as follows: YAG phosphor is excited on the blue LED chip, and the yellow-green light and blue light it emits are synthesized into white light. However, the spectrum of white light emitted by this technology is missing The red part has poor color rendering, and it is difficult to meet the lighting requirements of low color temperature; using RGB three-color multiple chips or multiple devices to emit light and mix colors into white light, or use blue and yellow dual-chip complementary colors to produce white light, although this method can be passed Select the appropriate wavelength and intensity to obtain a better color rendering index, but the difference in chip performance makes the drive circuit too complicated and heat dissipation becomes a problem; apply RGB phosphor powder on the ultraviolet light chip, and use purple light to excite the phosphor powder to produce three primary colors. Forms white light, however, due to the low efficiency and high cost of current UV chips and RGB phosphors, this technology has not yet reached the practical stage

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