DISPLAY DEVICE, USER INTERFACE METHOD, AND PROGRAM

摘要

A display device (100) comprises: a display unit (131) further comprising a display screen which displays an image; a console unit (132) further comprising a console screen which receives an operation by an operator contact; a display control unit (110) which displays on the display unit a plurality of icon images and one or more category images, representing one or more categories which are associated with the icon images; and an operation recognition unit (112) which recognizes a pinch-out operation in which, while in contact with two points of the console screen, the distance between the two points is expanded, based on the operation which is received by the console unit. When the pinch-out operation is recognized by the operation recognition unit, the display control unit switches the state of the icon images which are associated with at least one of the one or more categories from a compressed state wherein the icon images are not displayed to an expansion state wherein the icon images are displayed.