A section of a housing on a portable computing device is removed or folded away, thereby exposing a free edge of an LCD screen as well as electrical connectors and structural connectors. The wall thickness of the liner can be from 10 to 50 times the thickness of the metal shell. By enabling announcement messages such as voice mail greetings and email \u201cout-of-office\u201d messages to be created and updated with a single interface, more efficient messaging is achieved. In severe impedance mismatch conditions, this dissipated power may damage or destroy the transistor. Alternatively, upon detection of the contention above, a same line re-display read processing circuit performs same line re-display read processing without moving to the next line, and supplies a display read signal and a display line data transfer signal to the memory circuit while supplying the display line data transfer signal to the line latch circuit.