Oxynitride-based fluorescent material and method for production thereof
US7897064B2 · kind B2 · utility
1Cited by
4References
3Claims
0Family size
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Key dates
| Filing date | Sep 7, 2005 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Oct 26, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fluorescent material is combined with a blue light-emitting diode or an ultraviolet light-emitting diode and consequently enabled to emit a white light. An oxynitride-based fluorescent material is formed by substituting Eu for part of M in a composition of MOSi2N2O, wherein M denotes one or more metals selected from among Be, Mg, Ca, Sr and Ba.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.