Self-supporting or supported phosphor screen or panel
US5663005A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1996 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Jul 29, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K2004/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A screen, comprising a self-supporting or supported phosphor layer with phosphor particles (PP) dispersed in a polymeric binder (B), said phosphor particles (PP) being present in said binder (B) in a volume ratio PP/B of at least 80/20 is provided wherein the polymeric binder comprises at least one polymer (P) having a T.sub.g .ltoreq.0.degree. C., an average molecular weight (MG.sub.avg) between 5000 and 10.sup.7, being soluble in ethylacetate for at least 5% by weight (% wt/wt) and a self-supporting layer of said polymer P comprising 82% by volume of phosphor particles and having a tickhess so has to comprise 100 mg of phosphor particles per cm.sup.2, has an elongation at break of at least 1%. The screen or panel shows low screen structure mottle and a very good compromise between speed and resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.