Organic light emitting display device and driving method thereof
US9390652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2014 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Jan 16, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is an organic light emitting display device including a pixel connected to a data line, a gate line group, and a reference line. The pixel includes an organic light emitting diode (OLED), a driving transistor configured to control a current flowing in the OLED, a first switching transistor configured to selectively supply a data voltage to a first node, a second switching transistor configured to selectively supply an initial voltage to a second node, a third switching transistor configured to selectively connect a third node to the reference line, a fourth switching transistor configured to selectively connect the first node to the third node, a first capacitor connected between the first and second nodes to store a threshold voltage of the driving transistor, and a second capacitor connected between the first and third nodes to store the data voltage supplied through the first switching transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.