Method of making zinc sulfide electroluminescent phosphor particles
US5273774A · kind A · utility
10Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1992 |
| Grant date | Dec 28, 1993 |
| Priority date | — |
| Expiry date | Dec 31, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A copper- and/or manganese-activated zinc sulfide electroluminescent phosphor is made by coating particles of a ferroelectric material with a very thin coating of the phosphor. The phosphor is made by reacting zinc- and copper- and/or manganese-containing species with hydrogen sulfide and hydrogen chloride gases in a low-temperature vapor state reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.