Image display device for displaying aspect ratios

摘要

An image display device has a display screen with a predetermined aspect ratio. The display screen can display a plurality of sections. A scale corresponding to each section is displayed on a border of each section or on an extension of the border. Scale setters each determine a display attribute of each scale, generate a scale signal indicating the determined display attribute, and replace a predetermined portion of an image signal for displaying an image on the display screen with the scale signal.