Organic light emitting display and method of driving the same
US8890777B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2010 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Jan 27, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light emitting display capable of compensating for threshold voltage variations of a driving transistor may include scan and data drivers, pixels, an initial power source unit, a switching unit, a compensating unit, and a timing controller. The scan and data drivers may control current that flows from a first to a second power source via an OLED. The switching unit may selectively couple the initial power source unit to the data driver. The compensating unit may store second data corresponding to a threshold voltage of a driving transistor and may transmit the stored second data to the data driver. The timing controller may transmit the externally supplied first data input to the data driver and may control the scan driver, the data driver, and the compensating unit. The data driver may generate and supply third data signals to the pixels using the first and the second data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.