A display system, a display device, and a remote controller for controlling the display device are provided. The remote controller includes: a touch screen which receives an input from a user and display a first manipulation UI group including a shortcut key corresponding to a plurality of buttons to control the display device; a signal output unit which outputs a control signal to the display device based on an input to the touch screen; and a controller which, in response to a user's selection of the shortcut key, displays on the touch screen a second manipulation UI group and parts of the first manipulation UI group, the second manipulation UI group displaying the plurality of buttons.