INPUT DEVICE, DISPLAY DEVICE, AND ELECTRONIC DEVICE

摘要

A noise immunity of a detected capacitance is prevented or inhibited from lowering on a driving electrode different in width from the other driving electrodes, provided in an input device. A touch panel serving as an input device has a plurality of driving electrodes extending in an X-axis direction and arranged in a Y-axis direction intersecting with the X-axis direction, and a driving electrode arranged outside one side of an arrangement of the driving electrodes and extending in the X-axis direction. Further, the touch panel TP1 has a plurality of detecting electrodes extending in the Y-axis direction and arranged in the X-axis direction. The width of the driving electrode is smaller than the widths of the driving electrodes and the detecting electrode includes an expanding portion for expanding the area of the detecting electrode on the side opposite to the plurality of driving electrodes via the driving electrode.

主权项

1. An input device comprising:
a plurality of first electrodes extending in a first direction, respectively, and arranged in a second direction intersecting with the first direction in a plan view; a second electrode arranged outside one side of an arrangement of the plurality of first electrodes and extending in the first direction in a plan view; and a plurality of third electrodes extending in the second direction, respectively, and arranged in the first direction in a plan view, wherein an input position is detected based upon a first electrostatic capacitance between the third electrode and the first electrode and a second electrostatic capacitance between the third electrode and the second electrode, a first width of the second electrode in the second direction is smaller than a second width of the first electrode in the second direction, and the third electrode includes a first expanding portion for expanding the area of the third electrode on an opposite side of the plurality of first electrodes interposing the second electrode in a plan view.