Patent ID: 9557870
Date: 2017-01-31
CPC Classifications: G06F

Claim:
1. An electrostatic capacitance-type position detection device comprising: a plurality of first electrodes arranged in parallel with one another in a first direction and disposed in a substrate so as to extend in a second direction perpendicular to the first direction; a plurality of second electrodes arranged in parallel with one another in the second direction on the substrate and disposed in the substrate so as to extend in the first direction; and a ground electrode in the substrate, wherein: wherein the first electrodes each include a first electrode line and a second electrode line that extend in the second direction and are disposed so as to sandwich therebetween the corresponding ground region from the first direction; one electrode out of each of the first electrodes and each of the second electrodes is electrically driven, an electric output of the other electrode is detected, and a position to which an object is close on the substrate is detected based on the detection result, wherein at an intersection point between a first virtual center line of each of the second electrodes, which is parallel to the first direction, and a second virtual center line of each of the first electrodes, which is parallel to the second direction, the ground electrode has a ground region within which the intersection point is located when the substrate is viewed in plan, the corresponding first electrode is on an outer side of the ground region, and the corresponding second electrode is on an outer side of the corresponding first electrode with respect to the corresponding intersection point.