Touch panel and method of detecting coordinate position
US9019216B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Aug 16, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a touch panel including an upper conductive layer; a lower conductive layer facing the upper conductive layer with an interval between the upper conductive layer; a capacitive sensing unit that detects a coordinate position by a capacitive coupling under a condition where a predetermined electric potential is applied to the upper conductive layer; and a resistive sensing unit that detects a coordinate position based on an electric potential at a position where the upper conductive layer and the lower conductive layer contact under a condition where a potential gradient is generated on either one of the upper conductive layer and the lower conductive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.