Display apparatus and method of driving display panel using the same

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

• dividing input image data into a plurality of still image determining blocks;
• respectively determining whether the still image determining blocks represent a still image or a video image;
• determining a boundary between a still image display area and a video image display area of a display area of the display panel;
• determining a driving frequency of the still image display area;
• determining a driving frequency of the video image display area;
• outputting a gate signal to a gate line of the display panel based on the driving frequency of the still image display area and the driving frequency of the video image display area;
• and
• outputting a data voltage to a data line of the display panel based on the driving frequency of the still image display area and the driving frequency of the video image display area,
• wherein the still image display area and the video image display area of the display area are driven in different driving frequencies from each other, and
• wherein each of the still image determining blocks extends in an extending direction of the gate signal.