Patent ID: 8531362

Claim:
An organic light emitting display device comprising: a scan driver for sequentially supplying a scan signal to scan lines and sequentially supplying a light-emitting control signal to light-emitting control lines; a data driver for supplying data signals to data lines; pixels at crossing regions of the scan lines and the data lines; and a current sinker coupled to feedback lines for sinking a first current from the pixels, wherein each of the pixels on an i-th horizontal line comprises: an organic light emitting diode; a fourth transistor for controlling an amount of current that flows into a second power source from a first power source via the organic light emitting diode; a first transistor coupled between a gate electrode of the fourth transistor and the data line and configured to turn on when the scan signal is supplied to an i-th scan line of the scan lines; a first capacitor coupled between the gate electrode of the fourth transistor and the first power source; a second capacitor coupled between the gate electrode of the fourth transistor and the first transistor; a second transistor coupled between the gate electrode of the fourth transistor and a second electrode of the fourth transistor, and configured to turn on when the scan signal is supplied to an (i−1)-th scan line of the scan lines; a third transistor coupled between the current sinker and the second electrode of the fourth transistor, and configured to turn on when the scan signal is supplied to the (i−1)-th scan line; and a fifth transistor coupled between an anode electrode of the organic light emitting diode and a common terminal of the first transistor and the second capacitor to supply a threshold voltage of the organic light emitting diode to the common terminal, and configured to turn on when the scan signal is supplied to the (i−1)-th scan line, and wherein i is an integer greater than or equal to 1.