Pixel circuit, driving method thereof, display panel and display device
US11062652B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2020 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Apr 28, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2354/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a pixel circuit, a driving method, a display panel and a display device. A data writing module of the pixel circuit supplies a data signal to a gate electrode of a drive transistor and a first plate of a storage capacitor in a data writing phase. A reset module of the pixel circuit supplies a reset signal to a second plate of the storage capacitor in a data writing phase. A threshold compensation module of the pixel circuit supplies a threshold compensation signal to the second plate of the storage capacitor in a threshold compensation phase, and accordingly a potential of the first plate of the storage capacitor is adjusted to a first potential, and the drive transistor is threshold compensated. The threshold compensation signal is greater than the reset signal. A drive transistor supplies a drive current to an organic light-emitting element in a light emission phase to drive the organic light-emitting element to emit light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.