| 摘要 |
PROBLEM TO BE SOLVED: To provide an "information system" used as a display screen of a plurality of information sources by dividing the display screen of a display by a combination of screen sizes that are highly usable for a user.SOLUTION: When output AV information output from an AV processing unit 105 includes a moving image and a large-size still picture, a relatively large area that causes no trouble in viewing the moving image and the large-size still picture is allocated as an AV screen area and the rest is allocated as a navigation screen area (a). When the output AV information includes neither a moving image nor a still image but includes a text, only an upper belt-like area of a display surface of the display 101 that is sufficient for displaying the text is allocated as the AV screen area, and the rest is mostly allocated as the navigation screen area (c). |
