A touch screen system includes a touch panel to input image signals, a touch controller to drive the touch panel, an extension between the touch panel and the touch controller, and an anisotropic conductive film electrically interconnecting the extension to the touch controller. An example method begins with the receiving of a request for handover of the mobile terminal from an RNC of the macro wireless network. The shell includes at least some transparent or translucent portions that enable light from a matrix of the light source to emit through the shell, thus causing a display of light from the shell. The lanyard is disposed on the clip element. Accordingly, electric field concentration on upper and lower corner portions of the trench can be mitigated, and a decrease in withstand voltage at that portions can be prevented.