PURPOSE: To display information on more characters, images, etc., in a larger size without widening a liquid crystal display screen.

CONSTITUTION: When the TV button of an operation input part 10 is operated, a control part 11 permits a one screen data storing part 6 to store the display contents of characters, images, etc., which are displayed at a liquid crystal display part 4. A display controller 7 executes the processing of magnification/ reduction in the display contents based on the stored data, data where the processing is executed is NTSC-converted by an NTSC converting part 8 so that it is outputted to an external output terminal 9. Thus, data displayed at the liquid crystal display part 4 is displayed in a television, etc., which is connected to the external output terminal 9 by a cable or radio in a larger size.