Light-emitting device
US8587008B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 14, 2011 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Jan 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/854
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A light-emitting device includes a substrate, a plurality of light-emitting elements mounted on one surface of the substrate, a first glass film provided to one surface of the substrate and having a plurality of apertures that form a light-reflecting frame surrounding the perimeter of each the light-emitting elements, and a second glass film provided to the other surface of the substrate. A coefficient of thermal expansion of the second glass film is greater than that of the substrate when a coefficient of thermal expansion of the first glass film is greater than that of the substrate, and a coefficient of thermal expansion of the second glass film is less than that of the substrate when a coefficient of thermal expansion of the first glass film is less than that of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.