Method of Interacting With Large Display Device and Related Interaction System

A method of interacting with a large display device includes determining a file format of at least one file when the at least one file is opened; providing a plurality of functions on a plurality of buttons according to the file format, wherein each of the plurality of functions controls the at least one file; deploying the plurality of buttons on both sides of a main screen according to a layer layout, wherein each of the plurality of buttons includes a context or an icon corresponding to one of the plurality of functions; determining whether any of the plurality of buttons is triggered; and enabling a function of one of the plurality of buttons when the button is triggered.