Organic light emitting display and driving method thereof

An organic light emitting display comprising:

• a pixel portion comprising a plurality of pixels defined by a plurality of scan lines, a plurality of data lines, and a plurality of first power source lines, wherein each first power source line is connected to a row of the pixels, wherein each pixel is configured to emit light in response to a current received from its respective first power source line, wherein the current corresponds to a data signal transmitted through the data line and is supplied from the first power source line;
• a data driver configured to supply the data signals to the data lines;
• a scan driver configured to supply a plurality of scan signals to the scan lines;
• and
• a first power supply configured to supply first power signals to the first power source lines in correspondence to each of a plurality of sub-frames associated with a frame of display data.

A method of driving an organic light emitting display comprising a plurality of pixels, wherein the pixels are defined by a plurality of scan lines, a plurality of data lines, and a plurality of power source lines, the method comprising:

• supplying a scan signal to the scan line;
• supplying a data signal to the data line;
• supplying power to the power source line in correspondence to each of a plurality of sub-frames associated with a frame of display data;
• and
• supplying current to a pixel such that the pixel emits light, wherein the current is based on the supplied power and is supplied to the pixel in correspondence to the data signal.

An organic light emitting display, comprising:

• a pixel portion, comprising a plurality of pixels defined by a plurality of scan lines, a plurality of data lines, and a plurality of power source lines, wherein each pixel is configured to emit light in response to a current form the power source line, wherein the current is supplied to the pixel in correspondence to a data signal transmitted through the data line;
• a data driver configured to supply the data signal to the data line;
• a scan driver configured to supply the scan signal to the scan line;
• a power supply configured to supply a power signal to the first power source line in correspondence to each of a plurality of sub-frames associated with a frame of display data;
• and
• an initialization power supply configured to supply initialization power to each pixel.

A method of driving a plurality of pixels that are defined by a plurality of scan lines, a plurality of data lines, and a plurality of power source lines, wherein each pixel comprises a transistor configured to output current corresponding to a data signal supplied through one of the data lines, the method comprising:

• charging a capacitor with voltage corresponding to a threshold voltage of the transistor on the basis of initialization power, wherein the capacitor is charged in correspondence to a first scan signal transmitted through a first scan line;
• supplying the data signal to the data line;
• supplying power to the power source line in correspondence to a sub-frame of one frame;
• charging the capacitor with voltage corresponding to a difference between the data signal and the power, wherein the capacitor is charged in correspondence to a second scan signal supplied through a second scan line;
• and
• driving the transistor using the voltage stored in the capacitor and outputting the current from the power supplied to the power source line, thereby allowing an organic light emitting diode to emit light.

A method of driving an organic light emitting display comprising a plurality of pixels, the method comprising:

• supplying a scan signal to at least one of the pixels;
• supplying a data signal to at least one of the pixels;
• supplying power to at least one of the pixels in correspondence to each of a plurality of sub-frames associated with a frame of display data;
• and
• supplying current to an organic light emitting diode such that the organic light emitting diode emits light, wherein the current is supplied to the organic light emitting diode in correspondence to the data signal, and wherein the current is based on the supplied power.