Patent ID: 7782275

Claim:
A organic light emitting display comprising: a scan driver for supplying a scan signal to a scan line during a second period of one horizontal period; a data driver including a plurality of output lines, for supplying a plurality of data signals to the respective output lines during the second period; demultiplexers installed at the respective output lines, and including a plurality of data transistors for supplying the data signals to a plurality of data lines during the second period; initializing sections installed between a first initialization power supply and the plurality of data lines, and including a plurality of initialization transistors for supplying a voltage of the first initialization power supply to the plurality of data lines; and a pixel portion including a plurality of pixels positioned at areas partitioned by the scan line and the data lines, wherein the initialization transistors are turned-on during a first period of the one horizontal period, which is not overlapped with the second period, wherein the pixels each include: an organic light emitting diode; a first transistor for controlling a current supplied to the organic light emitting diode according to a first data signal; a storage capacitor coupled with the first transistor for charging a voltage corresponding to the first data signal; a second transistor coupled with an n-th scan line and an m-th data line, for transferring the first data signal supplied to the m-th data line to the storage capacitor; a third transistor coupled between the first transistor and the second transistor, a gate and a second electrode of the third transistor being electrically connected to each other; a fourth transistor coupled with the third transistor and a second initialization power supply, and being controlled by a scan signal supplied to an n−1 th scan line; and a fifth transistor coupled with the organic light emitting diode and the first transistor, and being controlled by the scan signal supplied to the n−1 th scan line.