COMPLEX-TYPE INPUT DEVICE WITH TOUCH SENSING FEATURES

摘要

PURPOSE: A complex input device with a touch function is provided to implement a touch function and a button input function at the same time without the increase of cost and an additional device by for a contact terminal pattern of a tome switch which performs a button function at an electrode panel performing a touchpad function. CONSTITUTION: A button input unit includes: a keypad(11) which comprises buttons; dome switches(15) which are placed at the lower portion of the keypad; and a contact terminal which generates an electric signal by contacting with the dome switch. The contact terminal comprises a first contact member which contacts the lower plane of the dome switches, and a second contact member which enables contact by pressing the upper portions of the dome switches. The dome switches are made of a conductive material to perform an electrode function that induces the conductive capacitance through the dome switch.