A pixel of an organic light emitting display device comprising: an organic light emitting diode (OLED) connected between a first power supply (ELVDD) and a second power supply (ELVSS); a first transistor connected between the first power supply (ELVDD) and the organic light emitting diode (OLED), the first transistor including a gate electrode connected to a first node; a second transistor connected between a first electrode of the first transistor and a data line (Dm), the second transistor including a gate electrode connected to a current scanning line (Sn); a third transistor connected between a second electrode of the first transistor connected to the organic light emitting diode (OLED) and the first node, the third transistor including a gate electrode connected to the current scanning line (Sn); a fourth transistor connected between the second electrode of the first transistor and the organic light emitting diode (OLED), the fourth transistor including a gate electrode connected to a light emitting control line (En), a fifth transistor connected between the second power supply (ELVSS) or a third power supply (VINT) being an initialization power supply and the first node, the fifth transistor including a gate electrode connected to a previous scanning line (Sn-1); a sixth transistor connected between the second power supply (ELVSS) or the third power supply (VINT) and a second electrode of the fourth transistor which is connected to the organic light emitting diode (OLED), the sixth transistor including a gate electrode connected to the previous scanning line (Sn-1); a seventh transistor connected between the first electrode of the first transistor and the first power supply (ELVDD), the seventh transistor including a gate electrode connected to the light emitting control line (En), and a storage capacitor (Cst) connected between the first power supply (ELVDD) and the first node; wherein in an initial period, during which a light emitting control signal is supplied to the light emitting control line (En) and a previous scanning signal is supplied to the previous scanning line (Sn-1), the first, fourth, sixth and seventh transistors (T1, T4, T6, T7) are adapted to be turned on such that a current path is formed from the first power supply (ELVDD) to the second power supply (ELVSS) when the sixth transistor is connected to said second power supply (ELVSS) or from the first power supply (ELVDD) to the third power supply (VINT) when the sixth transistor is connected to the third power supply (VINT), the current flowing via the first, fourth, sixth and seventh transistors (T1,T4,T6,T7), said initial period being part of an initializing period (t1, t2) and said initializing period being part of a driving period further comprising a data programming period and a light emitting period. an organic light emitting diode (OLED) connected between a first power supply (ELVDD) and a second power supply (ELVSS); a first transistor connected between the first power supply (ELVDD) and the organic light emitting diode (OLED), the first transistor including a gate electrode connected to a first node; a second transistor connected between a first electrode of the first transistor and a data line (Dm), the second transistor including a gate electrode connected to a current scanning line (Sn); a third transistor connected between a second electrode of the first transistor connected to the organic light emitting diode (OLED) and the first node, the third transistor including a gate electrode connected to the current scanning line (Sn); a fourth transistor connected between the second electrode of the first transistor and the organic light emitting diode (OLED), the fourth transistor including a gate electrode connected to a light emitting control line (En), a fifth transistor connected between the second power supply (ELVSS) or a third power supply (VINT) being an initialization power supply and the first node, the fifth transistor including a gate electrode connected to a previous scanning line (Sn-1); a sixth transistor connected between the second power supply (ELVSS) or the third power supply (VINT) and a second electrode of the fourth transistor which is connected to the organic light emitting diode (OLED), the sixth transistor including a gate electrode connected to the previous scanning line (Sn-1); a seventh transistor connected between the first electrode of the first transistor and the first power supply (ELVDD), the seventh transistor including a gate electrode connected to the light emitting control line (En), and a storage capacitor (Cst) connected between the first power supply (ELVDD) and the first node;