Patent ID: 8046685

Claim:
An information display device having a display screen with a touch sensor that makes it possible to operate a screen display through a touch operation on the display screen, wherein the information display device replaces the touch operation on a small screen area with an operation on the screen display of the display screen and enables a remote control by setting the small screen area which displays a minified version of an image displayed on the display screen, by shifting a touch operation position in the small screen area to a position on the display screen, a vertical size of the small screen area is determined to be a height from a lower side of a display area of the display screen to a given touch position, and a horizontal size is determined to be identical with an aspect ratio of the display screen, and a position shift on the display screen is carried out so as not to go over a side beyond which a drag operation is carried out when the drag operation in the small screen area is carried out beyond any one of the sides of the small screen area.