| 摘要 |
The present invention provides an organic light emitting display device comprising: a display panel which includes sub-pixels; a data driving unit which supplies a data signal to the display panel; a scan driving unit which supplies a scan signal to the display panel; and a sensing circuit unit which measures a threshold voltage of a driving transistor through a sensing transistor of the display panel, and provides compensation data. The scan driving unit turns on a sensing transistor of a selected sub-pixel so that the threshold voltage of the driving transistor of the sub-pixel selected during a vertical blank section of the display panel can be measured, and turns on sensing transistors of non-selected sub-pixels to supply a voltage lower than the threshold voltage of an organic light emitting diode to the sub-pixels which are not selected during an image display section of the display panel. |
