Image display device for expanding and displaying part of an image

摘要

An image display device includes an MPEG decoder configured to generate image signals based on digital signals received by a tuner unit, an image segmenting unit configured to extract image signals included in a segment area being an arbitrary area portion from image signals outputted from the MPEG decoder, a display position adjusting unit configured to set a display area being an arbitrary area portion displaying the extracted image signals, an expansion display producing unit configured to allocate the extracted image signals to the display area to generate an expanded image, and a video synthesizing unit configured to synthesize image signals outputted from the expansion display producing unit and image signals outputted from the MPEG decoder.