Patent ID: 8451196

Claim:
An organic light emitting diode (OLED) display device, comprising: an organic light emitting diode; a scan line for applying a scan signal; a data line for applying a data signal; a driving unit for applying the data signal in response to the scan signal; a driving transistor having a gate terminal electrically connected to the driving unit to supply a driving current to the organic light emitting diode in response to the data signal, the driving transistor being a P-channel metal oxide semiconductor (PMOS) transistor; and a first reverse bias transistor electrically connected between the gate terminal of the driving transistor and a first reverse bias voltage source, with the first reverse bias transistor being turned on in response to a first reverse bias control signal and applies a first reverse bias voltage to the gate terminal of the driving transistor, the first reverse bias voltage being higher by approximately 5 V to approximately 20 V than a voltage Vi applied to a source electrode of the driving transistor, the first reverse bias transistor being turned on and the first reverse bias voltage being applied to the gate terminal of the driving transistor only during an aging process that occurs upon manufacture of the display device and not during normal operation during normal drive cycles of the display device when images are being displayed.