US 11,868,550 B2
Input detection system
Takaaki Kono, Tokyo (JP); Makoto Hayashi, Tokyo (JP); and Yuto Kakinoki, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Oct. 20, 2021, as Appl. No. 17/505,816.
Claims priority of application No. 2020-181646 (JP), filed on Oct. 29, 2020.
Prior Publication US 2022/0137727 A1, May 5, 2022
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G06F 3/0362 (2013.01)
CPC G06F 3/0362 (2013.01) [G06F 3/0416 (2013.01); G06F 3/0443 (2019.05); G06F 3/0448 (2019.05)] 10 Claims
OG exemplary drawing
 
1. An input detection system comprising: a detection device including a plurality of detection electrodes arrayed in a detection region; an input support device including
a first input support electrode,
a second input support electrode provided so as to be movable on a concentric circle about a rotating axis overlapping with the first input support electrode, and
a coupling portion that electrically couples the first electrode and the second input support electrode;
a first detection electrode provided so as to face the first input support electrode;
a plurality of second detection electrodes provided at positions overlapping with the input support device and not facing the first input support electrode; and
a plurality of third detection electrodes provided at positions not overlapping with the input support device, wherein a position of the rotating axis of the input support device is fixed to the detection region of the detection device, and in detection of the second input support electrode:
a reference potential is supplied to one of the detection electrodes, the one corresponding to the first input support electrode; and
a drive signal is supplied to another one of the detection electrodes, the other one another one of the detection electrodes corresponding to the second input support electrode.