Organic light emitting display
US7528809B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2005 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Feb 21, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light emitting display for minimizing or preventing nonuniformity in image quality includes a first transistor having a gate electrode connected to a first selection signal, a source electrode connected to a data signal, and a drain electrode connected to a second node; a second transistor having a gate electrode connected to the first selection signal, a source electrode connected to a power voltage, and a drain electrode connected to a first node; a third transistor having a gate electrode connected to a second selection signal, a source electrode connected to a reference voltage, and a drain electrode connected to the second node; a capacitor connected between the first node and the second node; and a fourth transistor having a gate electrode connected to the first node, a source electrode connected to the power voltage, and a drain electrode connected to an organic light emitting diode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.