DISPLAY APPARATUS AND CONTROL METHOD THEREOF FOR VARIABLY DISPLAYING USER INTERFACE

A display apparatus includes a display and a processor. The processor is configured to: based on a user command for displaying a UI being input, identify at least one from among a size of the display and a ratio of the display, determine a size of the UI and a layout of the UI to correspond to the at least one from among the scale and the ratio of the display, and control the display to display a plurality of UI elements in the UI, according to the size and the layout of the UI.