Phosphor particle group, light emitting apparatus using the same, and liquid crystal display television
US9000664B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 2, 2010 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Jan 15, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8512
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a phosphor particle group of divalent europium-activated oxynitride green light emitting phosphor particles each of which is a β-type SiAlON represented by a general formula: EuaSibAlcOdNe, where 0.005≦a≦0.4, b+c=12, d+e=16, wherein a mean value of a value obtained by dividing a longer particle diameter by a shorter particle diameter is not greater than 1.75. Also provided are a light emitting apparatus using the phosphor particle group in a light converter, and a liquid crystal display television using the light emitting apparatus. With these, a high-efficiency and stable light emitting apparatus using a β-type SiAlON, and a phosphor particle group therefor are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.