Electrical device with screen
US8289726B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2007 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Jan 24, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic device (10) has a screen (12) protecting against radiofrequency electromagnetic fields, wherein the screen is formed by an at least partially conductive cap (12). In order to avoid the formation of a defined conductive connection between the cap (12) and a reference potential, conductive two-dimensional regions (30) of the cap (12) are arranged in electrically insulated fashion at a short distance parallel to at least one two-dimensional region (42) of a conductor (22) of a reference potential. The two-dimensional regions act as a capacitor and a capacitive coupling (12) to the reference potential is produced which eliminates or attenuates radiofrequency electromagnetic interference fields, which enter the electronic device or are emitted from it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.