Display device and method of compensating for luminance of display device

A display device comprising a plurality of display panels adjacent to each other with a boundary area interposed between the plurality of display panels, the display device comprising:

• a display unit comprising first pixels in the display unit and second pixels adjacent to the boundary area of the plurality of display panels;
• a data driver configured to apply a data voltage to a plurality of data lines coupled to the first pixels and the second pixels;
• an image mapping unit configured to map a captured luminance image to a unit pixel image;
• a de-blurring unit configured to perform a de-blurring operation on the mapped unit pixel image to calculate a correction luminance value of the second pixel;
• and
• a correction unit configured to calculate a correction grayscale value of the second pixel corresponding to the calculated correction luminance value of the second pixel.

A method of compensating for a luminance of a display device comprising a plurality of display panels adjacent to each other with a boundary area interposed between the plurality of display panels, the method comprising:

• receiving a captured luminance image of a first pixel and a captured luminance image of a second pixel;
• mapping the luminance image of the first pixel and the luminance image of the second pixel, respectively, to an image of a first unit pixel and a second unit pixel;
• performing a de-blurring operation on the mapped images of the first unit pixel and the second unit pixel;
• and
• calculating a correction grayscale value of the second pixel by using a luminance correction value of the second pixel obtained by the de-blurring operation.