Phosphor for use in a cathode-ray tube and display device using one
US5343316A · kind A · utility
12Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1993 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Jun 29, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7774
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A red-emitting phosphor represented by a general formula (Y.sub.1-x-y Cr.sub.x Gd.sub.y).sub.3 (Al.sub.1-z Ga.sub.z).sub.5 O.sub.12 with the provide that 0.0005.ltoreq.x.ltoreq.0.05, O.ltoreq.y.ltoreq.1, O.ltoreq.z.ltoreq.1, providing red- and infrared emitting luminescence, using alone or in a mixture with other phosphors in a cathode ray tube, having a constant main emission peak even if excited by a high current density, having a satisfactory luminescence efficiency, and causing less brightness saturation in proportion as a current density increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.