Touch display apparatus, driving circuit, and driving method
US10073562B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2014 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Jul 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A touch display apparatus, a corresponding driving circuit, and a driving method. The touch display apparatus includes a common electrode between a first substrate and a second substrate, and a driving circuit used as a touch sensing electrode during a touch sensing phase. The driving circuit is used for providing a first signal for touch detection to the common electrode. The driving circuit is also used for providing a second signal to a gate line during the touch sensing phase, said second signal enabling a thin-film transistor to be in off mode and decreasing the charge-discharge capacity of a capacitor formed by the common electrode and a gate line. The driving circuit is also used for providing a third signal during the touch sensing phase, the third signal decreasing the charge-discharge capacity of a capacitor formed by the common electrode and a data line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.