| 摘要 |
<p>The present invention relates to an organic light emitting display device capable of correcting the threshold voltage of a switching transistor included in a pixel, and a method for driving the same. An organic light emitting display device according to the present invention includes: a display panel which has multiple pixels which include an organic light emitting device, a driving transistor of controlling a current flowing along the driving light emitting device, a first switching transistor of supplying a data voltage to a first node as the gate electrode of the driving transistor, and a second switching transistor of supplying a voltage supplied to a reference line to a second node between the organic light emitting device and the driving transistor; and a panel driving part which operates the pixel with a sensing mode or a display mode. In the sensing mode, the panel driving part fixes the voltage level of a first gate high voltage supplied to the gate electrode of the second switching transistor, changes the voltage level of a second gate high voltage supplied to the gate electrode of the first switching transistor by frame unit, and senses the threshold voltage of the first switching transistor included in a corresponding pixel through the reference line of each pixel.</p> |
