Display apparatus, display system, and control method thereof

摘要

A display apparatus includes: a display unit; a high definition multimedia interface (HDMI) through which an external device can be connected; a user input unit; a user interface (UI) generator; and a controller which outputs a command signal for generating a UI for external device through the HDMI if a control signal for generating the UI for external device is input to the user input unit, and controls the UI generator to display the UI for the external device on the display unit based on UI data input from the external device.