Display device and driving method thereof

A display device, comprising:

• a display panel including a plurality of pixels;
• a zone compensating circuit which divides the display panel into a plurality of unit blocks, obtains data variation values of input image data for the unit blocks, and generates corrected image data by correcting the input image data based on the data variation values,
• wherein each of the data variation values corresponds to one of the unit blocks;
• and
• a display panel driver which generates a data signal for displaying an image on the display panel based on the corrected image data,
• wherein, when grayscale values included in the input image data are the same, a luminance of the image displayed on the display panel is decreased moving away from a center of a reference block having a largest data variation value among the unit blocks based on the corrected image data.

A driving method of a display device including a display panel including a plurality of pixels, comprising:

• dividing the display panel into a plurality of unit blocks;
• obtaining load values of input image data for the unit blocks,
• wherein each of the load values corresponds to one of the unit blocks;
• extracting a reference block with a largest load value among the unit blocks;
• generating corrected image data by correcting the input image data based on the reference block and the load values;
• and
• displaying an image on the display panel based on the corrected image data,
• wherein, when grayscale values included in the input image data are the same, a luminance of the image displayed on the display panel is decreased moving away from a center of the reference block based on the corrected image data.

A driving method of a display device including a display panel including a plurality of pixels, comprising:

• dividing the display panel into a plurality of unit blocks;
• obtaining data variation values of input image data for the unit blocks,
• wherein each of the data variation values corresponds to one of the unit blocks;
• extracting a reference block with a largest data variation value among the unit blocks;
• generating corrected image data by correcting the input image data based on the reference block and the data variation values;
• and
• displaying an image on the display panel based on the corrected image data,
• wherein, when grayscale values included in the input image data are the same, a luminance of the image displayed on the display panel is decreased moving away from a center of the reference block based on the corrected image data.