Patent ID: 7877119

Claim:
A mobile communications device comprising: a first body section having a keypad arranged on a first upper surface of the first body section; a second body section connected to the first body section, the second body section having a display screen arranged on a second upper surface of second body section; a supporter mounted at a midpoint of one side of the first body section; and a guide rail mounted at one side of the second body section in a longitudinal direction of the second body section, wherein the second body section linearly slides from a first position at which the second body section overlays the first body section to a second position at which the second body section exposes a first part of the keypad, the first part providing input functions of numerals and letters, and the second body section rotates about a rotation axis while facing the first upper surface from the first position to a third position at which the second body section fully exposes the keypad, and wherein the guide rail is operable to linearly and reciprocally move in a longitudinal direction of the first body section while being supported by the supporter, and operable to rotate relative to the supporter when the second body section rotates from the first position to the third position.