DETACHABLE TWO-SIDED KEYPAD MODULE HAVING A MULTIPURPOSE FUNCTION, PARTICULARLY FOR USING A KEYPAD BOTH WITH A BASIC FUNCTION SUCH AS PHONE NUMBER INPUT AND USE MODE SELECTION AND WITH OTHER FUNCTIONS BY FORMING THE KEYPAD AS A MODULE AND DETACHABLY ATTACHING IT TO A TERMINAL BODY

摘要

PURPOSE: A detachable two-sided keypad module having a multipurpose function is provided to add various contents to a mobile terminal and thus maximize user's satisfaction for demands in using the various contents. CONSTITUTION: A main body of a wireless communication device has a central portion in a concave step shape, has identification contact unit connection terminals at both sides of an upper surface of one step portion, and a signal connection port provided at an inner wall of one step portion. The first keypad(11) has an insertion protrusion(12) formed at a corresponding position so as to be inserted into the identification contact unit connection terminal, a data cable(13) formed at a corresponding position of the signal connection port so as to be detachably inserted to the concave portion of the main body, and a plurality of key buttons(11a) and a use mode button(11b) for signal inputting. The second keypad(21) is mounted at a lower surface of the first keypad(11a), has an insertion protrusion(22) formed at a corresponding position so as to be inserted into the identification contact unit connection terminal and a data cable(23) at a corresponding position of the signal connection port so as to be detachably inserted into the concave portion of the main body, and performs other functions than the functions of the first keypad(11).