Phosphor layers for electroluminescent panels and methods of their manufacture
US7223353B2 · kind B2 · utility
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5References
9Claims
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Key dates
| Filing date | Apr 29, 2002 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Jun 1, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A phosphor layer for an electroluminescent panel comprises a phosphor powder held in a binder. The binder comprises a mixture of two constituents, one of which is a drying oil or a semi-drying oil or a derivative and the other constituent is a sol-gel precursers. Examples of suitable oils are linseed oil, rape seed oil, sunflower oil and soyabean oil. Examples of suitable sol-gel precursers are tetraethyl orthosilicate, boron iso-propoxide, aluminium sec-butoxide and titanium iso-propoxide. Metal salts such as metal alkoxides, metal acetates and metal nitrates may be mixed with the sol-gel precursers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.