Organic light-emitting display device with data driver operable with signal line carrying both data signal and sensing signal
US9129554B2 · kind B2 · utility
5Cited by
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19Claims
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Key dates
| Filing date | Dec 10, 2012 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Jul 12, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light emitting display device having a data line that is used for sending data voltage signals to pixels from a data driver as well as send sensor signals for detecting threshold voltage levels of driving transistors in the pixels at different times. By using the same data line to transmit the data voltage signals and the sensor signals, the number of signal lines in the organic light emitting display can be reduced. The data driver also includes switches for selectively coupling the data line to a driver unit or an analog to digital converter (ADC) unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.