Cathode ray tube containing zinc silicate phosphor
US4806822A · kind A · utility
4Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1987 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Nov 23, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/623
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Zinc silicate phosphor emitting green for cathode ray tubes with a long persistence, which does not contain arsenic. ______________________________________ Formula aZnO.SiO.sub.2 :Mn.sub.x,In.sub.y ______________________________________ in which the conditions 1.5 .ltoreq. a .ltoreq. 2 5 .times. 10.sup.-5 .ltoreq. x .ltoreq. 3 .times. 10.sup.-2 1 .times. 10.sup.-5 .ltoreq. y .ltoreq. 1 .times. 10.sup.-2 ______________________________________ are satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.