Portable electronic game devices and display methods

摘要

A portable electronic device (100) for removable connection to an external device comprises a housing (101) having an access opening. A display (130) is positioned within the housing (101) for displaying information thereon. An electrical circuit is accommodated in the housing (101) and has a terminal accessible via the access opening in the housing (101). The electrical circuit determines a display orientation of information on the display (130) based upon a state in which the portable electronic device (100) is connected to the external device.