Pixel circuit, driving methods thereof, organic light emitting diode display panel, and display device
US9727186B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Aug 25, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Aug 25, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2354/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a pixel circuit, its driving methods, an OLED display panel and a display device. The pixel circuit includes a driving controlling unit configured to, under the control of a first scanning signal and a second scanning signal, charge or discharge a first storage capacitor through a first level, a second level and a data voltage, so as to compensate for a threshold voltage of a driving transistor with a gate-to-source voltage of the driving transistor when an OLED is driven by the driving transistor to emit light; and a touch controlling unit including a touch sensor and configured to, under the control of the first scanning signal and the second scanning signal, sense by the touch sensor whether or not a touch is made and transmit a corresponding touch sensing signal to a touch signal reading line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.