Integrated shielding in touch sensors
US9298327B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 9, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Feb 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In certain embodiments, a touch sensor includes a plurality of first electrodes, and a plurality of second electrodes. The plurality of second electrodes are separated from the plurality of first electrodes by an insulator and are operable, when operated by a controller, to capacitively couple with one or more first electrodes across the insulator. The touch sensor also includes a touch panel, a plurality of proximity electrodes, and a plurality of shield electrodes. Each shield electrode is associated with a respective proximity electrode of the plurality of proximity electrodes such that each shield electrode substantially surrounds its respective proximity electrode from a perspective orthogonal to a surface of the touch panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.