Display device with touch detection function, control circuit, driving method of display device with touch detection function, and electronic unit
US9671905B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2011 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Oct 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04108
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A display device with a touch detection function includes, a plurality of display elements performing display operation based on a pixel signal and a display drive signal, a touch detection element detecting an external proximity object based on a touch detection drive signal, a scan drive section performing display scanning by sequentially supplying the pixel signal and the display drive signal to the plurality of display elements in a time-divisional manner, and the scan drive section supplying the touch detection drive signal to the touch detection element, and a touch detection circuit performing touch detection by sampling a detection result from the touch detection element with a period shorter than a period of the display scanning. The scan drive section supplies the touch detection drive signal to the touch detection element in a touch detection operation period different from a display operation period for performing the display scanning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.