| 摘要 |
A touch sensor (37) for locating an external input point on an operating plane, which expands in an X direction and in a Y direction, by an electrostatic capacitive coupling technique, the touch sensor comprising: a first location sensing transparent conductive film (32), which is provided parallel to the operating plane and which is electrically connected to a Y coordinate detecting conductive portion (35) for detecting a coordinate of the input point in the Y direction; a second location sensing transparent conductive film (34), which is provided so as to face the first location sensing transparent conductive film and which is electrically connected to an X coordinate detecting conductive portion (36) for detecting a coordinate of the input point in the X direction; a dielectric layer (33), which is provided between the first and second location sensing transparent conductive films (32,34); and a switching circuit for selectively applying a predetermined voltage to one of the first and second location sensing transparent conductive films (32,34). |
