Organic light-emitting display device and driving method thereof

An organic light-emitting display device comprising:

• a display panel comprising a plurality of pixels, wherein each of the plurality of pixels comprises an organic light-emitting device configured to emit one of a plurality of colors comprising red, green, and blue;
• a deterioration threshold value calculator configured to:
• store, as accumulated image data for each of the pixels, information regarding image data supplied to the pixels;
• and
• calculate a deterioration threshold value based on an average of values of the accumulated image data respectively input to the plurality of pixels;
• a current sensor configured to detect a current amount flowing through pixels in one of first to nth display areas of the display panel in a power-off section of the display panel;
• and
• a deterioration amount calculator configured to define a deterioration area comprising a group of pixels from among the plurality of pixels each having a value of the corresponding accumulated image data that is equal to or greater than the deterioration threshold value among pixels in the first to nth display areas, and to calculate a deterioration amount of the pixels in the deterioration area,
• wherein the current sensor is configured to detect a current amount flowing through pixels in one of the first to nth display areas in each power-off section of the display panel.