Patent ID: 7460887

Claim:
A folding portable communication unit, comprising: a first cabinet; a second cabinet, the first cabinet and the second cabinet being supported by a hinge so as to be rotatable around the hinge; a first key unit situated on an obverse surface of the first cabinet or the second cabinet and from which a user inputs first data; a second key unit situated on a rear cover of the first or second cabinet and from which the user inputs second data in a case that the first cabinet and the second cabinet are folded in a closed position; a first display situated on an obverse surface of the first cabinet and which displays first information; a second display, smaller than the display, situated on a rear surface of the first cabinet or the second cabinet and which displays second information, the second information being viewable by the user in a case that the first cabinet and the second cabinet are folded in the closed position; a common display driver operable to drive both the first display and the second display, the second display and the common display driver being mounted on one side of a substrate and the first display being mounted on the other side of the substrate; and a control unit operable to make the common display driver decide which of the first display and the second display is to be used, wherein the folding portable communication unit is operable to permit verbal telephone communication only in a case that the first cabinet and the second cabinet are in an open position.