Input device, display device and methods of controlling thereof

Disclosed are an input device and a display device. The input device for inputting a command with a gesture includes a detection unit which detects the location and motion of the input device; a control unit which converts the detected motion to a physical quantity, generates a movement command if the physical quantity is less than a predefined threshold value, and generates a pre-set control command if the physical quantity is greater than the predefined threshold value; and a communications unit which transmits the generated command to the display device. Accordingly, a user can move a cursor on a screen of the display device and select a UI object only with the movement of the input device.