Touch sensor and display device
US8723841B2 · kind B2 · utility
12Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2010 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Apr 10, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04108
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensor that may detect an object away from the sensor is provided. The touch sensor includes one or more drive electrodes; one or more detection electrodes forming capacitance in cooperation with the respective drive electrodes; a detection circuit applying drive signals to the respective drive electrodes to detect the object based on detection signals obtained from the respective detection electrodes in response to the respective drive signals; and a controller controlling to change a range of electric flux lines generated between the drive electrodes and the detection electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.