Abstract: A multifunction input device for use with a computer plotter system, word processing system, or Chinese hand-write recognition system, which includes a double-loop conductor array for use with a wireless battery-driven induction pen, a wireless non-battery induction pen, a static pen, a finger, and data processing circuit, wherein induction current and static current are produced upon approaching of the wireless induction pen, static pen, or finger, causing conductors of the double-loop conductor array to scan the position of the pen, and generate an enabling scanned signal, so that the XYZ coordinate values of the pen are sent to a host computer.

Abstract: A flat-panel display device using an optical waveguide includes a light source for emitting light, a plurality of optical waveguides into which light emitted from the light source is incident, an optical waveguide arrangement substrate on which the plurality of optical waveguides are arranges and made of a material having a low refractive index so as to totally reflect the light transmitted through the plurality of optical waveguides, a light output controller positioned on the plurality of optical waveguides and made of a material whose refractive index changes according to an electric field, a light output portion positioned on the light output controller, for refracting the light having passed through the light output controller when the light propagated through the plurality of optical waveguides due to the electric field is transmitted through the light output controller and is output therefrom, and outputting the same to the outside, a first electrode positioned on the light output portion, made of a tr