Organic light emitting display device, pixel circuit of the same and driving method thereof
US9805656B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 8, 2014 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Jan 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light emitting display device, a pixel circuit of the organic light emitting display device and a method of driving the same are disclosed. The pixel circuit comprises a driving transistor, a first transistor, a second transistor, a third transistor, a fourth transistor, a first capacitor, a second capacitor, a light emitting diode and a compensating diode. The degradation of the light emitting diode is compensated by the compensating diode. Since the degradation phenomena of the light emitting diode is compensated by the compensating diode, the light emitting diode is able to maintain an effective and normal brightness while using the same driving voltage, thereby ensuring higher display quality of images and scenes of the organic light emitting display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.