Capacitive touch with driving conductive strips closer to an external object and without rear shielding layer
US8531426B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 2012 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Aug 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04111
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a mutual capacitive multi-touch screen. The conductive strip pattern allows that, when a touch range of each external conductive object on the mutual capacitive multi-touch screen is larger than a predetermined condition, capacitive coupling between each external conductive object and first conductive strip is greater than capacitive coupling between each external conductive object and second conductive strip, such that the proportion of a driving signal flowing out of the first conductive strip via at least one first external conductive object in the external conductive objects and into the second conductive strip via at least one second external conductive object in the external conductive objects decreases as the number of second external conductive objects increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.