Phosphor and flourescent display device
US6761836B2 · kind B2 · utility
0Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2001 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Oct 26, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7789
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A yellow light emission phosphor usable in a fluorescent display device does not include cadmium and Eu concentration in the yellow light emission phosphor is reduced to a range of about 0.001 mol % to about 0.1 mol %. The phosphor on a fluorescent display driven at a low voltage generates a yellow light emission with an excellent chromaticity and has a good life span characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.