The present invention provides an image display device comprising: a sensing unit for sensing an input gesture of a user; a display unit for outputting visual information among the executed data of an application when the application is executed; a collection unit for collecting control gesture information included in the executed data; and a control unit for executing an event of the application which is included in the executed data and corresponds to the control gesture information if the control gesture information and the input gesture sensed by the sensing unit are matching while the application is executed.