Patent ID: 7038728

Claim:
An image display method for a digital television (TV) receiver, comprising: restoring a picture frame from a video data stream; detecting an aspect ratio of the picture frame; checking if the aspect ratio of the picture frame is matched with a predetermined aspect ratio of the digital TV receiver; adjusting a vertical size or a horizontal size of the picture frame if the aspect ratio of the picture frame and the predetermined aspect ratio of the digital TV receiver are different from each other comprising if the aspect ratio of the picture frame is greater than the predetermined aspect ratio of the digital TV receiver, compressing a vertical size of the picture frame, and if the aspect ratio of the picture frame is less than the predetermined aspect ratio of the digital TV receiver, compressing a horizontal size of the picture frame; and format-converting the picture frame having the adjusted vertical size or horizontal size in accordance with a selected output format to output the format-converted picture frame.