Display apparatus and UI providing method thereof

The UI providing method of a display device is disclosed. UI providing method determines a text entry mode of the step of receiving a user command to select a particular character, based on a user command like the character input mode and the accented character input mode on the stage, the character input UI for displaying a character input UI step and, in accordance with the determined character input mode comprises the step of displaying a second character input UI that includes a first character input UI or accented character items including a like character item in the border area of ​​the character items corresponding to a particular character do.