Display apparatus and method of driving the same

A display apparatus comprising:

• a local dimmer configured to generate a dimming signal representing a degree of dimming for a light source block based on input image data;
• an image compensator configured to determine a grayscale gain based on input grayscale value of the input image data and the dimming signal and to compensate luminance of the input image data based on the grayscale gain;
• a display panel configured to display an image based on the compensated input image data;
• and
• a light source configured to provide light to the display panel based on the dimming signal,
• wherein the local dimmer is configured to generate first compensation information corresponding to a first gain graph having gains varied according to light profile values,
• wherein the image compensator is configured to generate a plurality of selecting compensation information groups corresponding to a plurality of selecting gain graphs having gains varied according to the light profile values for a plurality of selecting grayscale values, and
• wherein a gain of a first selecting gain graph corresponding to a first selecting grayscale value for a first light profile value is greater than a gain of a second selecting gain graph corresponding to a second selecting grayscale value greater than the first selecting grayscale value for the first light profile value.