Organic light emitting diode display having short detecting circuit and method of driving the same

A method of driving an organic light emitting diode display, comprising:

• applying a sensing voltage to a first power source line;
• detecting a voltage of a second power source line to compare the voltage of the second power source line with a reference voltage;
• and
• supplying a start signal to a DC-DC converter if the voltage of the second power source line is less than the reference voltage.

An organic light emitting diode display having a short detecting circuit, the display comprising:

• a pixel unit including pixels coupled to scan lines and data lines;
• a DC-DC converter for conditionally outputting a first and second power voltages to first and second power source lines, the first and second power source lines respectively supplying the first and second power voltages to the pixel unit;
• and
• a short detecting circuit for determining whether the first power source line and the second power source line are shorted, wherein the short detecting circuit is configured to supply a signal to the DC-DC converter indicating whether the first and second power source lines are shorted,
• wherein the DC-DC converter is configured to output the first and second power voltages if the first and second power source lines are not shorted.