| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reader/writer apparatus, which can be mounted with a display device that displays many pieces of information in good visibility by using liquid crystal or organic EL without damaging visibility and user convenience and has flexibility in design that determines position and shape of the reader/writer apparatus. <P>SOLUTION: In the reader/writer apparatus 10, the display device 12 that can display many pieces of information in good visibility by using the liquid crystal or organic EL is mounted on a square-shaped signal processing circuit board 11, and then an antenna 13 is mounted on the display device 12 to configure the apparatus 10. The antenna 13 is film-formed into a loop antenna, which has a pattern that a plurality of loops turning around the periphery on an antenna board, such as a transparent glass or a polyethylene terephthalate. The loop antenna is film-formed with indium tin oxide or indium zinc oxide, which is a transparent conductive material, using a sputtering apparatus. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
