Display device and control method thereof
US11656720B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 2021 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Dec 31, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/368
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a display panel, a noise detection circuit and a processing circuit. The display panel has a touch control function and is configured to detect a contact location of an object to output a touch signal. The noise detection circuit is configured to detect and process a voltage signal of a common electrode of the display panel to output a free run signal and a noise sync signal. The processing circuit is configured to receive the free run signal and the noise sync signal. When the free run signal is at a first level, the processing circuit receives the touch signal in real-time. When the free run signal is at a second level different to the first level, the processing circuit receives the touch signal according to the noise sync signal. The present disclosure also provides a control method for the display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.