Common voltage control circuit and method, display panel and display device
US10867573B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 4, 2017 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Oct 15, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided in the embodiments of the disclosure are a common voltage control circuit and method, a display panel and a display device. The control circuit includes a temperature sensing circuit and a voltage adjusting circuit. The temperature sensing circuit is configured to sense the ambient temperature. The voltage adjusting circuit is coupled to the temperature sensing circuit and the common electrode, and is configured to provide a corresponding common voltage to the common electrode based on a temperature signal from the temperature sensing circuit. According to the embodiments of the present disclosure, the common voltage may be changed according to the ambient temperature to improve the image sticking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.