Patent ID: 7690576

Claim:
A handheld mobile communication device, comprising: a keypad member having a plurality of keys; a display member having a graphical display; wherein said keypad member comprises a front portion which is closest to an edge of said keypad member which is farthest away from said graphical display when the device is in a fully opened position; wherein said display member comprises a front portion which is closest to the front portion of said keypad member; said display member being coupled to said keypad member by means of a linkage mechanism whereby said display member has a closed position in which said display member is disposed essentially parallel and adjacent to said keypad member and covers at least a portion of said keys and an open position in which said display member is disposed at an angle that is greater than 90° and less than 180° relative to said keypad member and a keypad is completely exposed to the user, said graphical display being exposed to the user when said display member is in both said closed position and said open position and said linkage mechanism being configured to allow said display member to move between said closed position and said open position; wherein said linkage mechanism comprises front and rear linkage bars, 1) said front linkage bar being pivotally connected at a first end thereof to the front portion of said display member and being pivotally connected at a second end thereof to the front portion of said keypad member and 2) said rear linkage bar being pivotally connected at a first end thereof to a mid-portion of said display member and being pivotally connected at a second end thereof to a rear-portion of said keypad member, said front linkage bar being shorter than said rear linkage bar; and wherein said linkage mechanism comprises a spring that only biases said display member toward said closed position.