| 摘要 |
PROBLEM TO BE SOLVED: To transmit and receive information to/from an information medium in which a display unit for displaying information according to potential difference between two electrode layers arranged opposite to each other is arranged along a dipole antenna while securing communication distance from the dipole antenna.SOLUTION: A reader/writer 2 performs non-contact communication with an information display card 1 housed in a clear holder 4 attached to a management object article 3 from the side opposite to a display unit 30 of a dipole antenna 21.SELECTED DRAWING: Figure 3 |
