Touch drive method, touch display device, and electronic equipment
US11379079B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 14, 2020 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | May 14, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/044
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch drive method, a touch display device, and an electronic equipment are provided. The touch display device includes a display structure and a touch structure stacked with the display structure, a touch scan frequency of the touch structure is different from a display scan frequency of the display structure, and the touch drive method includes: applying a touch scan signal to the touch structure during a process in which the display structure performs progressive scan in respond to a row synchronization signal; a display noise signal is generated during at least one level switching process of the row synchronization signal; and each period of the touch scan signal has a signal rising edge and a signal falling edge, and the signal rising edge and the signal falling edge of each period of the touch scan signal are respectively located outside a noise duration of the display noise signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.