Display device including a touch panel that detects touch based on sensing signal delay
US9864444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2014 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Feb 22, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch-sensitive display device is provided. The touch-sensitive display device includes a display panel and a touch panel. The display panel includes first and second substrates facing each other. The display panel is configured to display images through the second substrate. The touch panel is disposed on the second substrate and is configured to detect a touch event. The touch panel includes sensing electrodes spaced apart from each other, a conductive layer, and a touch processor. The conductive layer is electrically separated from the sensing electrodes. The touch processor is configured to provide sensing signals to the sensing electrodes and to obtain touch coordinates to which the touch event is input based on delay values of the sensing signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.