Patent ID: 8354984

Claim:
An organic light emitting display comprising: a scan driver for supplying a plurality of first scan signals at a same time and for a same duration to a plurality of scan lines and for supplying a plurality of first emission control signals at the same time and for the same duration as the supplying of the plurality of first scan signals to a plurality of emission control lines formed in parallel with the plurality of scan lines in a first period of one frame, and for supplying a plurality of second scan signals in sequence to the scan lines and a plurality of second emission control signals to the emission control lines in a second period of the one frame, each of the first emission control signals having a longer supplying time period than each of the second emission control signals; a data driver for supplying a first voltage to a plurality of data lines in the first period and for supplying a plurality of data signals to the data lines in the second period; and a pixel portion comprising a plurality of pixels connected to the scan lines and the data lines, each of the pixels comprising an organic light emitting diode and a fifth transistor for supplying a light emission current to the organic light emitting diode, the fifth transistor being configured to be non-conducting in response to a corresponding one of the first emission control signals supplied to a corresponding one of the emission control lines or a corresponding one of the second emission control signals supplied to the corresponding one of the emission control lines, to interrupt the light emission current flowing to the organic light emitting diode, wherein each of the pixels further comprises: a second transistor connected to a respective one of the data lines and an n th scan line of the scan lines (where, n is a natural number); first and second capacitors connected in series between the second transistor and a first power source; a first transistor connected between the first power source and a first node formed, between the first and second transistors and for supplying the light emission current according to a voltage charged in the first and second capacitors to the organic light emitting diode; a third transistor connected between the first node and an electrode of the first transistor, and controlled by an (n−1) th scan line of the scan lines; and a fourth transistor connected between the electrode of the first transistor and an electrode of the third transistor, and controlled by the n th scan line of the scan lines, and wherein, when the one frame is an odd-numbered frame, the scan driver supplies the second scan signals in a first scanning sequence and wherein, when the one frame is an even-numbered frame, the scan driver supplies the second scan signals in a second scanning sequence differing from the first scanning sequence.