Organic light-emitting display device and driving method thereof

A method of driving an OLED display device, the method comprising:

• obtaining an emission ratio and a saturation of an input source image, the emission ratio indicating light-emitted degrees of pixels constituting the input source image;
• adjusting the emission ratio according to the saturation;
• adjusting the brightness of the input source image according to the adjusted emission ratio;
• establishing a data voltage of a data signal corresponding to the input source image based on the adjusted brightness;
• and
• displaying an image corresponding to a scan signal, an emission control signal, and the data voltage,
• wherein the adjusting of the emission ratio comprises increasing the emission ratio when the saturation of the input source image is higher than a reference value, and
• wherein the adjusting of the brightness comprises:
• increasing a brightness reduction ratio when the emission ratio of the input source is higher and decreasing the brightness reduction ratio when the emission ratio of the input source image is lower.

An organic light-emitting diode (OLED) display device comprising:

• means for obtaining an emission ratio and a saturation of an input source image, the emission ratio indicating light-emitted degrees of pixels constituting the input source image;
• means for adjusting the emission ratio according to the saturation;
• means for adjusting the brightness of the input source image according to the adjusted emission ratio;
• means for establishing a data voltage of a data signal corresponding to the input source image based on the adjusted brightness;
• and
• means for displaying an image corresponding to a scan signal, an emission control signal, and the data voltage,
• wherein the means for adjusting the emission ratio comprises means for increasing the emission ratio when the saturation of the input source image is higher than a reference value, and
• wherein the means for adjusting the brightness comprise:
• means for increasing a brightness reduction ratio when the emission ratio of the input source image is higher and for decreasing the brightness reduction ratio when the emission ratio is lower.