Patent ID: 8542165

Claim:
An organic light emitting display comprising: a scan driver configured to supply scan signals to scan lines and to supply emission control signals to emission control lines; a data driver configured to supply data signals and an initialization voltage to data lines; and pixels positioned at crossing regions of the scan lines and the data lines, each of the pixels comprising: an organic light emitting diode (OLED); a first transistor for controlling an amount of current supplied from a first power source, the first transistor having a first electrode coupled to the first power source and a second electrode coupled to the OLED; a second transistor coupled between the first electrode of the first transistor and a corresponding one of the data lines; and a fourth transistor connected to both of the first and second transistors, the first, second, and fourth transistors being connected to each other directly at a common node, wherein a gate electrode of the first transistor of a first pixel from among the pixels positioned on an i th (“i” is a positive integer) horizontal line is coupled to a corresponding one of the data lines via a second pixel from among the pixels positioned on an (i−1) th horizontal line in a period where the initialization voltage is supplied to the data lines, wherein the fourth transistor of the first pixel is coupled between the first transistor of the first pixel and a third pixel positioned on an (i+1) th horizontal line, and is configured to be turned on by a corresponding one of the scan signals supplied to an i th scan line, and wherein the second transistor of the first pixel is configured to be turned on when a corresponding one of the scan signals is supplied to the i th scan line of the scan lines.