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

Claim 5:
6. A display device comprising:
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; and
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 plurality of pixels, wherein
a display drive signal is supplied to the first electrodes in a display period for displaying an image by the pixels,
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,
the driver IC further comprises a second electrode surrounding the detection region, and
the multiplexer couples the second electrode to the driver IC as the drive electrode in the first detection period.