Flat panel display device
US8723813B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2009 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Oct 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0412
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A flat panel display device that can easily determine whether it has been touched or not by sensing a variation in capacitance by using a cushion member. The flat panel display device includes a first face; a frame having a conductive face and supporting the first face and having a conductive face; a cushion member interposed between the first face and the conductive face and formed of a dielectric material, wherein a thickness of the cushion member varies depending on an externally applied pressure, a conductive film interposed between the first face and the cushion member; and a sensor unit electrically connected to the conductive face and the conductive film respectively, which calculates and senses a variation in capacitance of a capacitor comprising the conductive face, the cushion member, and the conductive film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.