Key input device for portable terminal

摘要

A key input device for a portable terminal includes wheel keys capable of rotating in multiple directions and performing a switch function. The key input device including a plurality of keys having at least one wheel keys provided in a main body and rotating in multiple directions, at least one rotating units allowing the wheel keys to rotate in respective directions, and at least one switching units provided under the wheel keys to sense the rotation directions of the wheel keys and to sense a pressure generated by the activation of the rotated wheel keys.