Lighting device
US8496341B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Jan 18, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/345
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
One object is to reduce the weight of a lighting device including an electroluminescent material. An object is to achieve high reliability of a lighting device including an electroluminescent material. In a lighting device including a light-emitting element having an electroluminescence (EL) layer, a housing formed using an organic resin whose refractive index is greater than or equal to that of the EL layer is provided to cover a light emission surface and a top surface of the light-emitting element. In addition, an inorganic insulating film covering an inner wall of the housing provided with the light-emitting element and the top surface of the light-emitting element is preferably provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.