Display device and method of driving the same

A display device comprising:

• a pixel unit displaying a first image in a first mode and displaying a second image in a second mode;
• a driver unit electrically connected to the pixel unit, providing data signals corresponding to the first image to the pixel unit in response to a first mode start signal, generating first position data including position information of the first image in response to a first mode end signal, and enabling the pixel unit to shift the first image in the first mode based on information related to cumulative usage amounts of areas of the pixel unit;
• a memory electrically connected to the driver unit and storing the first position data;
• data lines electrically connected to the pixel unit;
• and
• scan lines electrically connected to the pixel unit,
• wherein the driver unit comprises:
• an image shifter shifting first image data corresponding to the first image according to a predetermined shift scenario in the first mode;
• a data driver converting the first image data to the data signals and providing the data signals to the pixel unit through the data lines;
• and
• a scan driver providing scan signals to the pixel unit through the scan lines, and
• wherein the image shifter comprises:
• a shift counter counting a number of occurrences that values of a position defining pixel coordinate set, which define positions of the first image, match each of reference coordinate sets, wherein the memory stores the number of occurrences.