Patent ID: 11934611
Assignee: JAPAN DISPLAY INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A detecting device comprising:
a plurality of first electrodes arrayed in a first direction and a second direction intersecting the first direction in a detection region;
a driver IC configured to supply a drive signal to the first electrodes and to detect a detection signal received from the first electrodes;
a multiplexer configured to couple part of the first electrodes to the driver IC as a detection electrode and couple the first electrodes disposed side by side with the detection electrode in at least the first direction and the second direction to the driver IC as a drive electrode in a first detection period; and
a second electrode surrounding the detection region, wherein
the multiplexer switches the first electrode serving as the detection electrode in each of a plurality of the first detection periods,
the multiplexer selects one of the first electrodes in a divided region obtained by dividing the detection region into a plurality of regions as the detection electrode and selects the others of the first electrodes as the drive electrode, and
the multiplexer couples the second electrode to the driver IC as the drive electrode in the first detection period.