| 摘要 |
PROBLEM TO BE SOLVED: To allow a driver to easily recognize the contents of displayed sentences. SOLUTION: A display screen 9 is arranged in front of a driver's seat in a cabin. A display control unit 8 displays the sentences composed of a plurality of characters including specified characters on the display screen 9. A visual line direction detecting part 5 detects the visual axis direction of a driver seated on the driver's seat. A screen visual confirmation deciding part 6 decides a screen visual confirmation state in which the visual line of the driver is directed to the display screen 9 or not based on the visual axis direction detected by the visual line direction detecting part 5. When the screen visual confirmation state is decided, a visual line stay time deciding part 7 decides an instantaneous visual confirmation in which the duration of the screen visual confirmation state is less than a prescribed time or not. The display control unit 8 displays the specified characters and non-specified characters except them in different display modes when the instantaneous visual confirmation is decided. COPYRIGHT: (C)2011,JPO&INPIT
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