Patent ID: 6839068

Claim:
A picture displaying method for displaying, on a display area, a picture contained in a picture data file, said method comprising: determining whether the size in pixels of a main picture contained in the picture data file is equal to or smaller than the display area's size in pixels; determining whether a thumbnail is contained in the picture data file; if a thumbnail is contained in the picture file, determining whether the thumbnail's size in pixels is equal to or smaller than the display area's size in pixels; displaying the main picture on the display area if the main picture's size in pixels is equal to or smaller than the display area's size in pixels; reducing the main picture's size in pixels and displaying the reduced main picture on the display area if the main picture's size in pixels is not equal to or smaller than the display area's size in pixels and a thumbnail is not contained in the picture data file; displaying the thumbnail on the display area if the main picture's size in pixels is not equal to or smaller than the display area's size in pixels, the thumbnail is contained in the picture data file, and the thumbnail's size in pixels is equal to or smaller than the display area's size in pixels; and reducing the thumbnail's size in pixels and displaying the reduced thumbnail on the display area if the main picture's size in pixels is not equal to or smaller than the display area's size in pixels, the thumbnail is contained in the picture data file, and the thumbnail's size in pixels is not equal to or smaller than the display area's size in pixels.