| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a contactless tag, or the like that ensures power supply from a reader/writer when mounting a display function by a cataphoresis display, or the like, and simultaneously improves the display function. <P>SOLUTION: In the contactless tag 1, an antenna 11, an IC chip 12, the cataphoresis display 13 are mounted at a prescribed position on an insulating board 10 each, and a ferromagnetic material 14 is arranged at a position that is the lower surface of the insulating board 10 and opposes the lower surface of the cataphoresis display 13. Specifically, the ferromagnetic material 14 is provided at a position opposite to the entire lower surface of a lower electrode 131 of the cataphoresis display 13 on the lower surface of the insulating board 10. When an AC magnetic field from the reader/writer operates, the ferromagnetic material 14 prevents an eddy current from occurring at the conductor section of the lower electrode 131 by allowing flux by the magnetic field to reach the lower electrode 131. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
