| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a touch panel with a touch screen in a convex or concave state, for suppressing a deviation of touch coordinates due to a touch position and highly accurately calculating the touch coordinates independent of the touch position. <P>SOLUTION: The touch panel comprises: a touch screen 1 which includes row wiring 2 for detection disposed in a lateral direction and column wiring 3 for detection disposed in a longitudinal direction, and has a cross section in the longitudinal direction in a convex state or a concave state; a switch circuit 20 for successively selecting the wiring for detection; a capacitance detection circuit 21 for detecting capacitance of the wiring for detection selected by the switch circuit; and a touch coordinate calculation circuit 22 for calculating coordinates on the basis of a detection result. A width of the wiring 2 for detection is formed so as to be successively narrower from an upper end to a lower end in the longitudinal direction of the touch screen 1 when the touch screen 1 is in the convex state and to be successively wider from the upper end to the lower end in the longitudinal direction of the touch screen 1 when the touch screen 1 is in the concave state. <P>COPYRIGHT: (C)2013,JPO&INPIT |
