Organic light emitting display device and driving method thereof

An organic light emitting display device, comprising:

• a scan driver progressively supplying scan signals to scan lines;
• a data driver supplying data signals to output lines of the data driver, the data signals including first and second data signals being sequentially supplied to a corresponding output line during a horizontal period;
• and
• demultiplexers respectively coupled to the output lines of the data driver, and supplying the data signals to data lines connected to pixels, each demultiplexer including:
• a first switch coupled between the corresponding output line and a first data line, the first switch to supply the first data signal from the corresponding output line to the first data line by a first control signal during the horizontal period;
• a second switch coupled between the corresponding output line and a second data line, the second switch to supply the second data signal from the corresponding output line to the second data line by a second control signal during the horizontal period;
• and
• a third switch coupled between a first initialization power source and the second data line, the third switch to supply the first initialization power source to the second data line by the first control signal during the horizontal period, wherein:
• the first control signal being commonly supplied to the first switch and the third switch is before the second control signal being supplied to the second switch during the horizontal period, and
• the first control signal has a width longer than that of the second control signal.