Patent ID: 11861120
Assignee: JAPAN DISPLAY INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A detecting device comprising:
a plurality of drive electrodes arrayed in a first direction;
a plurality of detection electrodes arrayed in a second direction intersecting the first direction;
a drive signal supply circuit configured to supply a drive signal to the drive electrodes; and
a plurality of switch elements configured to switch between coupling and decoupling between the drive electrodes, wherein
the drive electrodes include at least a first drive electrode and a second drive electrode disposed side by side in the first direction,
the drive signal supply circuit supplies a first voltage signal to one of the first drive electrode and the second drive electrode and supplies a second voltage signal having an electric potential different from an electric potential of the first voltage signal to another one of the first drive electrode and the second drive electrode,
the switch elements switch between coupling and decoupling of at least the first drive electrode and the second drive electrode,
the detecting device has a first period and a second period that differ in a coupling state of the switch elements,
in the first period,
the switch elements cause the first drive electrode to be decoupled from the second drive electrode, and
the drive signal supply circuit supplies the first voltage signal to at least one or more of a plurality of the first drive electrodes and supplies the second voltage signal to at least one or more of a plurality of the second drive electrodes, and

in the second period,
the drive signal supply circuit stops supplying the first voltage signal to the first drive electrode and supplying the second voltage signal to the second drive electrode, and
the switch elements couple the first drive electrode and the second drive electrode.