Patent ID: 8621378
Filing Date: 2013-12-31
Classification: G06F

Abstract:
1. A mobile terminal device comprising: a display unit that includes a display area in which an image indicating a scroll wheel is displayed; a detecting unit that detects a touch operation performed on the display unit; a control unit that changes the image indicating the scroll wheel displayed on the display unit according to a trajectory of the touch operation detected by the detecting unit; a first housing that includes the display unit; and a second housing that includes a physical scroll wheel that is movable in relation to the first housing and that is exposed when the second housing is moved; wherein the image indicating the scroll wheel corresponds to the physical scroll wheel included in the second housing, wherein the display unit displays the image indicating the scroll wheel when the physical scroll wheel is not exposed and displays other information without displaying the image indicating the scroll wheel when the physical scroll wheel is exposed; and wherein the image indicating the scroll wheel is used to navigate in place of the physical scroll wheel that is not exposed.