A display apparatus comprising: a display configured to output a broadcast content or a content for an interior decoration function; a memory configured to store a first layout for surrounding the broadcast content and a second layout for surrounding the content for the interior decoration function; and at least one processor operatively connected to the display and the memory, wherein the at least one processor is configured to: based on receiving a first user input to enlarge the broadcast content in a first mode outputting the broadcast content and the first layout through the display, remove the first layout, enlarge the broadcast content, and output the enlarged broadcast content through the display; based on receiving a user input for executing a specific function in the first mode, reduce a size of the broadcast content, output the first layout around the reduced broadcast content, and output an icon corresponding to the specific function on the first layout, based on receiving a second user input to enlarge the content for the interior decoration function in a second mode outputting the content for the interior decoration function and the second layout through the display, enlarge portions of the content for the interior decoration function and portions of the second layout and output the enlarged portions of the content for the interior decoration function and the enlarged portions of the second layout through the display, and based on receiving the user input for executing the specific function in the second mode, remove a portion of the second layout, and output an icon corresponding to the specific function on the second layout, and wherein the first layout comprises a wallpaper image, and wherein the second layout comprises the wallpaper image (113a, 114a) and an edge image surrounding the content for the interior decoration function. a display configured to output a broadcast content or a content for an interior decoration function; a memory configured to store a first layout for surrounding the broadcast content and a second layout for surrounding the content for the interior decoration function; and at least one processor operatively connected to the display and the memory, wherein the at least one processor is configured to: based on receiving a first user input to enlarge the broadcast content in a first mode outputting the broadcast content and the first layout through the display, remove the first layout, enlarge the broadcast content, and output the enlarged broadcast content through the display; based on receiving a user input for executing a specific function in the first mode, reduce a size of the broadcast content, output the first layout around the reduced broadcast content, and output an icon corresponding to the specific function on the first layout, based on receiving a second user input to enlarge the content for the interior decoration function in a second mode outputting the content for the interior decoration function and the second layout through the display, enlarge portions of the content for the interior decoration function and portions of the second layout and output the enlarged portions of the content for the interior decoration function and the enlarged portions of the second layout through the display, and based on receiving the user input for executing the specific function in the second mode, remove a portion of the second layout, and output an icon corresponding to the specific function on the second layout, and based on receiving a first user input to enlarge the broadcast content in a first mode outputting the broadcast content and the first layout through the display, remove the first layout, enlarge the broadcast content, and output the enlarged broadcast content through the display; based on receiving a user input for executing a specific function in the first mode, reduce a size of the broadcast content, output the first layout around the reduced broadcast content, and output an icon corresponding to the specific function on the first layout, based on receiving a second user input to enlarge the content for the interior decoration function in a second mode outputting the content for the interior decoration function and the second layout through the display, enlarge portions of the content for the interior decoration function and portions of the second layout and output the enlarged portions of the content for the interior decoration function and the enlarged portions of the second layout through the display, and based on receiving the user input for executing the specific function in the second mode, remove a portion of the second layout, and output an icon corresponding to the specific function on the second layout, and wherein the first layout comprises a wallpaper image, and wherein the second layout comprises the wallpaper image (113a, 114a) and an edge image surrounding the content for the interior decoration function.