Patent ID: 11868559
Assignee: JAPAN DISPLAY INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A detection function-equipped display device comprising:
a display unit in which a plurality of pixels are disposed;
a plurality of drive electrodes disposed along a display surface of the display unit and arranged in a first direction;
a plurality of detection electrodes disposed along the display surface, arranged in a second direction different from the first direction, and facing the drive electrodes;
a potential selection circuit configured to perform switching control to switch a potential to be applied to each drive electrode between a drive potential and a non-drive potential;
a scanning circuit configured to output a scanning signal for scanning the drive electrodes;
a detection circuit configured to perform detection of a touch on the display surface based on potentials output from the detection electrodes; and
a signal selection circuit configured to supply, to the potential selection circuit, either a first signal corresponding to the scanning signal from the scanning circuit or a second signal from the detection circuit, wherein
the switching control includes:
first processing of applying the drive potential, but not applying the non-drive potential, to one or more of the drive electrodes based on one of the first signal and the second signal; and
second processing of applying the non-drive potential to the other drive electrodes other than the one or more of the drive electrodes, the first processing and the second processing being performed during a detection period.