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

Claim 8:
9. A detection function-equipped display device comprising:
a display unit in which a plurality of drive electrodes, a plurality of pixels each including a pixel electrode facing a corresponding one of the drive electrodes, and a plurality of detection electrodes facing the drive electrodes are disposed;
a DDIC configured to drive the drive electrodes and the pixel electrodes;
a touch IC coupled to the detection electrodes and configured to perform detection of a touch based on outputs from the detection electrodes;
a potential selection circuit coupled to each of the drive electrodes and configured to perform switching control to switch a potential of each of the drive electrodes between a drive potential and a non-drive potential; and
a signal selection circuit coupled to the DDIC and the touch IC and configured to supply, to the potential selection circuit, either a first signal from the DDIC or a second signal from the touch IC, 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.