Provided is a display apparatus which generates an image signal having a scanning frequency twice as high as an input image signal without increasing the processing load on a signal driving unit and displays the image signal on a display panel. The display apparatus includes a timing controller for extracting a vertical synchronizing signal and a horizontal synchronizing signal from an input image signal, a display panel having a plurality of scan lines and a plurality of signal lines perpendicularly crossing the scan lines, a scan driving unit for sequentially applying a scanning voltage to each of the scan lines based on the extracted vertical synchronizing signal and horizontal synchronizing signal, and a signal driving unit for applying a signal voltage to each of the signal lines.