A display apparatus can include a display panel configured to display images; a scan driver configured to supply scan signals to the display panel; a data driver configured to supply data voltages to the display panel; a timing controller configured to control the scan driver and the data driver; and a device controller configured to in response to receiving a frequency change signal, change a driving frequency of a device from a first frequency to a second frequency higher than the first frequency or change the driving frequency of the device from the second frequency to the first frequency, while maintaining widths of driving signals of the scan driver before and after the driving frequency is changed, in which the device includes at least one of the scan driver or the data driver.