Map display device and a recording medium

Abstract

A map display device for a vehicle navigation system providing route guidance including an information memory device for storing map data relating to route search and route guidance, as well as other guidance data, an input device for inputting instructions and information for route search and route guidances, a display device for displaying a map and other guidance data by switching between a single screen display mode and a two-part split screen display modes, and a display control device for reading guidance data from the information memory device in response to the instructions input to the input device and a control guidance screen displayed on the display device. The map display device displays a frame, to the position corresponding to the detailed map, on the wide area map, regarding the wide area map and its detailed map in the two-part split screen display mode. Therefore, this system can distinctly display the relationship between the detailed map and the wide area map displayed in two-part split screen display mode.

Dependencies are inferred from the claim text.