Pixel circuit, method for driving the same, OLED panel, and display device
US10467965B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2018 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Jan 20, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a pixel circuit and method for driving the same, an organic light emitting display panel and a display device. Prior to the data signal is written into the control electrode of the driving transistor, a unified common voltage signal is input to the first electrode of the driving transistor. The common voltage signal, along with a threshold voltage of the driving transistor, is written into the control electrode of the driving transistor. It can be ensured that each time the data signal is written to the control electrode of the driving transistor, voltages of the control electrode and the first electrode of the driving transistor can jump by a unified potential, so as to avoid the variation of the voltage change in the control electrode which came as a result of the parasitic capacitance between the control electrode and the first electrode of the driving transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.