Patent ID: 7760172
Filing Date: 2010-07-20
Classification: G09G

Abstract:
1. A method for driving a transistor, comprising: receiving a bias voltage at a first electrode of a driving transistor; outputting a first signal having a positive polarity from a first electrode of a switching transistor to a capacitor and a control electrode of the driving transistor when a select line is activated for driving an organic display element during an image display period; and outputting a second signal having a negative polarity from the first electrode of the switching transistor to the capacitor and the control electrode of the driving transistor when the select line is activated for dissipating a charge in the driving transistor and for deactivating the organic display element during a non-image display period, wherein the first signal has different positive voltage levels in each image display period and a maximum voltage level of the first signal has a magnitude the same as a voltage level of the second signal.