Organic light emitting display device and driving method thereof
US10943544B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2018 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Feb 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/131
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light emitting display device and a driving method thereof may turn on first and second transistors, wherein the first transistor electrically connects a data line and a first node of a driving transistor that drives an organic light emitting diode of each sub-pixel, and the second transistor electrically connects a second node of the driving transistor and a reference voltage line, and may provide a detection driving data voltage and a detection driving reference voltage to the first and second nodes of the driving transistor, respectively, to perform initialization; may turn off the first and second transistors to float the first and second nodes of the driving transistor, and may detect one or more from among a short and to an open of the organic light emitting diode by sensing the voltage of the first node or the second node of the driving transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.