Patent ID: 7965332

Claim:
A method of dynamically displaying digital images by coordinate conversion on a virtual plane, comprising the steps of: establishing a virtual plane; selecting a display region on the virtual plane, wherein the display region is in the center of the virtual plane, and the display region corresponds to a screen of a display unit in a one-to-one pixel style, wherein the virtual plane is N by N times larger than the display region, N is a finite integer; projecting at least a digital image in a storage unit on the virtual plane to form an image region, wherein the digital image and the display region are of the same dimension; deciding a moving trace of the image region on the virtual plane; determining whether the image region and the display region overlap by checking if an upper-left point of the image region is in a special region of the virtual plane; calculating the overlap between the image region and the display region according to the upper-left point of the image region; and displaying a corresponding part of the digital image on a corresponding part of the screen according to the upper-left point of the image region and filling an area on the screen that does not display the corresponding part of the digital image with a preset background color or with another digital image previously displayed, wherein when the image region moves on the virtual plane from a first position to a second position along the moving trace, the method further calculating first and second overlaps between the image region and the display region respectively and refreshing the display on the screen of the display from a first corresponding part of the digital image corresponding to the first overlap on a first corresponding part of the screen to a second corresponding part of the digital image corresponding to the second overlap on a second corresponding part of the screen.