Various aspects of this disclosure are directed to determining, with a computing device, an amount of time that has elapsed since the computing device was last utilized for processing an outgoing or an incoming phone call. In addition, vector magnifying processing is executed for font data likewise with the aid of a software, and moreover, synthesizing processing is executed for the font data. Then, the method moves the first-eye image for a length of a shift. An etching can then be performed followed by the deposition of a protective coating such as alumina. The average amplitude value may be compared to a DC voltage value in an amplitude comparison circuit. The rigid circuit board is electrically connected to the flexible printed circuit board.