Driving apparatus for touch display device and driving method for touch display device
US11797125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2022 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | May 18, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0412
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided is a driving apparatus for the touch display device including: a signal generation circuit that generates a second image signal using an input first image signal and outputs the second image signal in a display period, and generates a common voltage signal and outputs the common voltage signal in a touch sensing period; and a dummy signal output determination circuit that determines whether to output a dummy signal using the second image signal, wherein when it is determined to output the dummy signal by the dummy signal output determination circuit, the signal generation circuit generates at least one dummy signal using the second image signal and the common voltage signal and outputs the at least one dummy signal in the display period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.