Patent ID: 8902185

Claim:
A scrolling screen apparatus comprising: an image display device which can display an image; an image storage device which stores image data to be displayed in the image display device; a coordinate input device to input coordinates on the image display device; a coordinate storage device which stores touch coordinates which are a first input to the coordinate input device, release coordinates which were input just before the termination of coordinate inputting to the coordinate input device and a plurality of sampling coordinates which are input to the coordinate input device between the input of the touch coordinates and the input of the release coordinates; and a control device which makes the image display device display the image read from the image storage device, and scrolls the display screen of the image display device corresponding to the data of each input coordinate stored in the coordinate storage device, and wherein the control device, scrolls the display screen by the amount of displacement corresponding to the displacement vector of each input coordinate, in a displacement scroll mode between the input of the touch coordinates and the input of the release coordinates to the coordinate input device, and scrolls the display screen by the amount of displacement corresponding to the scroll distance which is the sum total of the distances between each adjoining coordinate point of the touch coordinates read from the coordinate storage device, in an inertia scroll mode after the input of release coordinates.