Touch display apparatus, driving circuit, and driving method
US11775108B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2021 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Feb 22, 2042 |
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 are provided. The touch display apparatus includes a driving circuit configured to, during the touch sensing stage, provide a first signal to a common electrode for realizing touch detection during the touch sensing stage, a second signal used to control a thin film transistor of the touch display apparatus to be switched off and is used to decrease charge and discharge capacity of a capacitor formed by the common electrode and the gate line, and a third signal used to decrease charge and discharge capacity of a capacitor formed by the common electrode and a data line. The third signal is used to control the data line to enter a floating state during the touch sensing stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.