Phosphor composition and white light emitting device using the same
US9279081B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Jul 20, 2012 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Jul 20, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A phosphor composition and a white light emitting device using the same are disclosed. The white light emitting device includes a blue light emitting diode and a phosphor composition disposed on the blue light emitting diode, wherein the phosphor composition includes a yellow lanthanum silicon nitride, a yellow β-SiAlON and a red CaAlSiN, and the weight proportion of the yellow lanthanum silicon nitride, the yellow β-SiAlON and the red CaAlSiN is 1: 1:0.3˜0.45.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.