Patent ID: 7508365

Claim:
A pixel circuit of an organic light emitting display, comprising: a first transistor adapted to supply a current corresponding to a voltage applied to a gate of the first transistor to an organic light emitting device; a second transistor adapted to supply a data voltage to a first electrode of the first transistor in response to a first scan signal; a third transistor adapted to connect a second electrode of the first transistor with the gate of the first transistor; a capacitor adapted to store a voltage corresponding to the data voltage when the first scan signal is applied to the second transistor, and adapted to supply the stored voltage to the gate of the first transistor for the organic light emitting device to emit light; a fourth transistor adapted to cut off a pixel voltage from being applied to the first electrode of the first transistor in response to an emission control signal; a fifth transistor adapted to cut off an electrical connection between the second electrode of the first transistor and the organic light emitting device in response to the emission control signal; and a sixth transistor adapted to discharge the voltage stored in the capacitor in response to a second scan signal.