POWER UNIT AND ORGANIC LIGHT EMITTING DISPLAY DEVICE HAVING THE SAME

摘要

A power unit includes a first transistor turned on or off in response to a first control signal and connected between a first output node and a fixing high power voltage, a second transistor turned on or off in response to a second control signal and connected between a ground voltage and the first output node, a diode connected to an anode electrode with a variable high power voltage, a third transistor turned on or off in response to a third control signal and connected between the cathode electrode of the diode and the first output node. Therefore, the power unit prevents the generation of a ripple current and a peak current when the frame operation interval of an organic light emitting display device using a simultaneous light emitting driving method is changed from a light emitting interval to a non-light emitting interval.