Flat lighting device and a method for the production thereof
US7952113B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2006 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Aug 16, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10106
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flat lighting device (10, 10′) that has light-emitting lighting elements (1) arranged on a carrier, which are connected to current supply and current discharge lines (4′) to supply current. The carrier has the form of a metallic sheet (2), which is covered with an insulating layer (3), on which series connections of a lighting element (3) and a surface resistor (5) are arranged between the current supply and current discharge lines (4′). One lighting element (1) and one surface series resistor (5) of a series connection and the series connections and the current supply and current discharge lines (4′) are connected to one another by conductor paths. There is also a method for producing lighting devices of this type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.