| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a touch panel device having excellent water resistance/hygienic characteristics. <P>SOLUTION: This touch panel device has: an operation part 54; a transmission part 51 having a transmission antenna transmitting an electric wave beam; a reception part 53 having a reception antenna receiving the electric wave beam emitted from the transmission antenna, and a diode detecting a current component flowing through the reception antenna; and a control part 53 deciding that a finger of a user contacts or approaches the operation part 54 based on a detection result (reception power) of the diode, and performing output to the outside. In the touch panel device, the operation part 54 is disposed on a radiative line of the electric wave beam toward the reception antenna from the transmission antenna, and the reception antenna is disposed such that an excitation direction of the reception antenna is nearly orthogonal to a front edge of the operation part 54. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
