Light-emitting device and organic-inorganic hybrid pre-polymer composition comprising phosphor
US9428689B2 · kind B2 · utility
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Key dates
| Filing date | Dec 16, 2014 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Dec 16, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8512
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A solid light-emitting device comprising a light-emitting semiconductor element and a phosphor dispersed in a sealant, in which the phosphor is exited by the light emitted by the semiconductor element to emit a visible light of a wavelength differing from that of the light emitted by the semiconductor element and is a silicate phosphor or a phosphor having a hydroxyl group on its surface, and the sealant is a condensation product of a prepolymer produced by condensation of polydimethyl-siloxane having a silanol group at both ends and an oligomer of an alkoxide of a metal or a semimetal or its derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.