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Light-emitting device

A technology of light-emitting devices and light-emitting components, which is applied in the direction of electrical components, electric solid-state devices, circuits, etc., can solve the problems of low chip utilization rate and increased manufacturing cost, and achieve the effect of reducing manufacturing cost and improving chip utilization rate

Active Publication Date: 2020-08-14
KAISTAR LIGHTING (XIAMEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method also leads to a low chip utilization rate, resulting in an increase in overall manufacturing costs

Method used

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Examples

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no. 1 example

[0039] refer to Figure 1 to Figure 5 As shown, the first embodiment of the present invention provides a light emitting device 1000, and the light emitting device 1000 is preset with the standard spectrum corresponding to the white light spectrum. The light emitting device 1000 includes the first LED packaging structure 210 and the second LED packaging structure 220 . The first LED packaging structure 210 can generate the first light source A, the second LED packaging structure 220 can generate the second light source I, and the first light source A and the second light source I can generate Blended into the blended light source AI.

[0040] It should be noted that, in order to facilitate the description of the technical features of the light emitting device 1000 of the present invention, the specification spectrum corresponding to the target light source K is described by taking black body radiation as an example, but the present invention is not limited to this example. lo...

no. 2 example

[0059] Such as Figure 6 to Figure 9 As shown, it is the second embodiment of the present invention. This embodiment is similar to the above-mentioned first embodiment, and the similarities between the two embodiments will not be repeated. Compared with the above-mentioned first embodiment The difference mainly lies in that the second LED packaging structure 220 of the second embodiment is different from the first LED packaging structure 210 of the first embodiment.

[0060] refer to Figure 6 As shown, the chart shown in the figure is the waveform of the first spectrum of the first light source D, the waveform of the second spectrum of the second light source F, the mixing of the mixed light source DF The waveform of the light source spectrum, and the waveform (black body radiation) of the standard spectrum; that is to say, this chart is the white light spectrum of the first light source D, the second light source F, and the mixed light source DF and the The specification s...

no. 3 example

[0073] Such as Figure 10 to Figure 13 As shown, it is the third embodiment of the present invention. This embodiment is similar to the above-mentioned first embodiment, and the similarities between the two embodiments will not be repeated. The difference mainly lies in that the second LED packaging structure 220 of the third embodiment is different from the first LED packaging structure 210 of the first embodiment.

[0074] refer to Figure 10 As shown, the chart shown in the figure is the waveform of the first spectrum of the first light source C, the waveform of the second spectrum of the second light source G, the mixing of the mixed light source CG The waveform of the light source spectrum, and the waveform (blackbody radiation) of the standard spectrum; that is to say, this chart is the white light spectrum of the first light source C, the second light source G, and the mixed light source CG and the The specification spectrum described above. The horizontal axis of th...

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Abstract

The invention discloses a light-emitting device. The light-emitting device comprises a substrate and a light-emitting assembly. The light-emitting assembly comprises a first light-emitting diode packaging structure and a second light-emitting diode packaging structure. The light-emitting assembly can generate a mixed light source, and the spectrum of the mixed light source has a mixed light sourcespectrum deviation index. The first light-emitting diode packaging structure can generate a first light source. The white light spectrum of the first light source has a first spectrum deviation index. The second light-emitting diode packaging structure can generate a second light source. The white light spectrum of the second light source has a second spectrum deviation index. When the wavelengthof the first light source and the second light source is 460-500 nanometers, the sum of the first spectral wave deviation index and the second spectral wave deviation index is -0.3 to 0.3, and the difference between the first spectral wave deviation index and the second spectral wave deviation index is at least greater than 0.2. Therefore, the mixed light source of the light-emitting device and atarget light source are ensured to have a consistent spectrum, and the qualified standard light source is met.

Description

technical field [0001] The invention relates to a light-emitting device, in particular to a light-emitting device composed of at least two package structures with different white light spectra. Background technique [0002] Existing light-emitting devices use light-emitting diodes as light sources; wherein, the wide-wave chip (CQ) used by light-emitting diodes has multiple different quantum wells (QUANTUM WELL, QW), and the forbidden band width between different quantum wells (ENERGYBAND GAP, EG) will also vary. When electrons are electrically recombined, the energy recombined at different band gaps will be different, resulting in that although multiple chips are produced in the same batch, the spectra of each chip will still be different from each other. Manufacturers must ensure that the product ( The spectrum of the light emitted by the light-emitting device) is consistent, and its spectral indicators all meet the qualified specifications, so the manufacturer will only s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L25/13H01L33/48
CPCH01L25/13H01L33/48H01L25/0753H01L33/486
Inventor 张景琼林宗杰
Owner KAISTAR LIGHTING (XIAMEN) CO LTD