Patent ID: 6466193
Filing Date: 2002-10-15
Classification: G09G

Abstract:
An image display device for displaying images on a display screen having an aspect ratio of X:Y by sequentially sampling inputted image signals, said image display device comprising:a signal compression means for compressing the inputted image signals along a time axis at a predetermined compression ratio; an image signal synthesizer means for producing a synthesized image signal from at least one of compressed image signals outputted from the signal compression means during each horizontal scanning period; a clock frequency control means for producing frequency-controlled clock signals each in accordance with respective one of horizontal display area size ratios Z/Y and (Yâˆ’Z)/Y and with the predetermined compression ratio, when to divide said display screen into a first area having an aspect ratio of X:Z (Za display control means for sampling each image signal in the synthesized image signal by a respective one of said frequency-control clock signals and thereby displaying images on said first and second areas.