Patent ID: 7899499

Claim:
A mobile telecommunication handset, comprising: a main body having a keypad for inputting information; a cover body having a main display unit on a first surface thereof that faces the main body when the cover body is closed over the main body, and having a sub display unit on a second surface of the cover body that is opposite to the first surface and exposed to the outside; a hinge unit connecting the main body and the cover body such that the cover body can be flipped opened and closed with respect to the main body; a touch pad on the second surface of the cover body, said touch pad being different and not part of the sub display unit; and a control unit configured to activate the touch pad on the second surface of the cover body when the cover body is closed over the main body and a key is pressed, to deactivate the touch pad when the cover body is closed over the main body and an input on the touch pad has not occurred for a predetermined amount of time, and to reactivate the touch pad when a touch key on the touch pad is touched for the predetermined amount of time.