Patent ID: 9671918
Date: 2017-06-06
CPC Classifications: G06F

Claim:
1. A sensor panel capable of being mounted at a coordinate detection device configured to output coordinates of a position indicator based on electromagnetic induction, the sensor panel including a coil array having a plurality of loop-like sensor coils, comprising: a first sensor coil group including a plurality of sensor coils having a same coil width, the first sensor coil group being disposed at a central part of the coil antsy to have a predetermined coil side pitch; and a second sensor coil group including a plurality of sensor coils having a coil width narrower than the coil width of the first sensor coil group, the second sensor coil group being disposed at a peripheral part of the coil array; wherein a predetermined group of sensor coils of the second sensor coil group arranged from the central part to the peripheral part of the coil array comprise coil widths that are gradually shortened.