Importance

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Abstract

An organic light emitting display and a driving method thereof are disclosed which minimize non-uniform brightness due to the different properties of transistors due to their manufacture. The organic light emitting display comprises a plurality of pixels defined by a plurality of scan lines for supplying a scan signal, a plurality of data lines for supplying a data signal, and a plurality of power source lines. Each pixel comprises a pixel circuit for outputting current from the power source line corresponding to the data signal, wherein power is supplied to the power source line corresponding to a sub-frame. Each pixel further comprises an organic light emitting diode configured to emit light depending on the current outputted from the pixel circuit. With this configuration, desired gradation is represented by supplying the first power, having different voltage levels according to the digital data signals of the respective sub-frames, to an anode electrode of the organic light emitting diode. Thus, non-uniformity of brightness due to property difference between transistors in the pixel circuits is minimized.

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First Claim