Detecting device and display device
AssigneeJapan Display Inc.
InventorsAkihiko FUJISAWA, Naoki TAKADA, Kisho YAMAMOTO
Life of this patent
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Abstract
A detecting device includes a plurality of first electrodes arrayed in a first direction and a second direction intersecting the first direction in a detection region, an electrode drive circuit configured to supply a drive signal to the first electrodes, a detection circuit configured to detect a detection signal received from the first electrodes, and a coupling circuit configured to couple part of the first electrodes to the detection circuit 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 electrode drive circuit as a drive electrode in a first detection period.
Claims16
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;
- an electrode drive circuit configured to supply a drive signal to the first electrodes;
- a detection circuit configured to detect a detection signal received from the first electrodes;
- and
- a coupling circuit configured to couple part of the first electrodes to the detection circuit 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 electrode drive circuit as a drive electrode in a first detection period.
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;
- an electrode drive circuit configured to supply a drive signal to the first electrodes;
- a detection circuit configured to detect a detection signal received from the first electrodes;
- and
- a coupling circuit configured to couple part of the first electrodes to the detection circuit 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 electrode drive circuit 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.
Dependencies are inferred from the claim text.