Method for producing thin uniform powder phosphor for display screens
US5697824A · kind A · utility
5Cited by
40References
4Claims
0Family size
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Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D13/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A system and method for producing thin, uniform powder phosphors for field emission display screens features a planarization of the phosphor powder layer. That planarization is accomplished by placing the deposited phosphor layer in an anode plate between two optical flats, which are then mounted within a mechanical press.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.