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US 5,853,554 AGranted
Composition and method for preparing phosphor films exhibiting decreased coulombic aging
AssigneeSI Diamond Technology, Inc.
InventorsChristo Pavel Bojkov, Leif Goran Fredin, Nalin Kumar, Howard Khan Schmidt
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Abstract
Phosphor screens are disclosed that exhibit decreased Coulombic aging and/or lower threshold voltages. The phosphor compositions and electrochemical methods for making those screens are also disclosed.
Claims11
A process for producing a phosphor screen comprising the following steps:
- preparing a charged phosphor suspension, wherein said suspension comprises a plurality of phosphor particles having a cation adsorbed to said phosphor particles;
- electrophoretically depositing said charged phosphor particles onto a conductive substrate to form a phosphor film;
- preparing an inorganic salt solution, said solution having a different composition than said phosphor suspension;
- depositing said inorganic salt onto said phosphor film;
- curing said phosphor film with said deposited salt in an oxidizing atmosphere.
2 more elements
Dependencies are inferred from the claim text.