Disclosed are a display apparatus and an image displaying method, which can increase a battery usage time. The display apparatus includes a display including a screen for displaying an image; and a controller configured to provide the display a first user interface (UI) for selecting at least one among a plurality of regions in the screen, provide the display a second UI for adjusting a displaying position of the image to be displayed on at least one region selected through the first UI, and control the display to display the image at the displaying position adjusted through the second UI, and make the other regions of the screen except the region where the image is displayed be in a power-saving mode. According to the present invention, it is possible to not only increase a battery usage time but also display information at a position desired by a user.