Touch sensor back plane ground connection
US8573984B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2012 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Dec 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R4/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Touch sensor panels can use touch sensors to detect the presence and location of a touch event. In order for the touch sensors to function reliably, the back plane of the touch sensor panel should be grounded. Supplying this ground connection can provide a uniform electrical reference point from which changes in voltage and capacitance due to a touch event can be measured. Without this ground connection, touch sensors may misrepresent the touch event. Various embodiments of the present disclosure provide different means for providing a ground connection for the back plane of a touch sensor panel. These embodiments are designed to provide a reliable ground connection even in the presence of various failure conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.