Patent ID: 8754911

Claim:
A method of controlling a touch panel display device, the method comprising: displaying, on a screen, a zoom icon area with a set of icons arranged in the zoom icon area; recognizing a first touch event; performing a double determining processes after the first touch event is recognized, and including a first determining process of determining whether the recognized first touch event is positioned within the zoom icon area, and a second determining process of determining whether or not the recognized first touch event corresponds to a one point-touch if the recognized first touch event is positioned within the zoom icon area; executing a function of a single icon without magnifying the zoom icon area if the recognized first touch event is positioned out of the zoom icon area; if the recognized first touch event corresponds to the one point-touch, displaying a magnified icon area corresponding to the zoom icon area, wherein the magnified icon area is larger than the zoom icon area and the magnified icon area includes all of the icons arranged within the zoom icon area regardless of a position of the recognized first touch event in the zoom icon area; recognizing a second touch event; determining whether the recognized second touch event corresponds to a remainder of the screen; and returning to the step of displaying the zoom icon area without displaying the magnified icon area if it is determined that the recognized second touch event corresponds to the remainder of the screen while the magnified icon area is displayed.