Display apparatus and method of driving the same

A display apparatus comprising:

• a display panel;
• a driving controller, which receives input image data including a plurality of normal image frames, converts some of the normal image frames into black image frames by adjusting a grayscale of the input image data, and generates a data signal based on the converted input image data;
• and
• a data driver, which generates a data voltage based on the data signal and outputs the data voltage to the display panel.

A method of driving a display apparatus, the method comprising:

• receiving input image data including a plurality of normal image frames and a plurality of black image frames and receiving a flag indicating a type of each of frames included in the input image data, wherein the type includes a normal image frame and a black image frame;
• generating intermediate image data by adjusting a grayscale of the input image data based on the input image data and the flag;
• generating a data signal based on the intermediate image data;
• and
• generating a data voltage based on the data signal and outputting the data voltage to the display panel,
• wherein the generating intermediate image data comprises:
• generating a first scale factor based on an N-th frame among the frames included in the input image data,
• generating a second scale factor by reflecting a compensation value in the first scale factor, and
• generating the intermediate image data by adjusting a grayscale of an (N+1)-th frame by applying the second scale factor corresponding to the N-th frame in a case that the N-th frame is the normal image frame and by applying the second scale factor corresponding to an (N−1)-th frame in a case that the N-th frame is the black image frame,
• wherein N is a natural number equal to or greater than 2.