公开(公告)号：US11868550B2

公开(公告)日：2024-01-09

申请号：US17505816

申请日：2021-10-20

Applicant: Japan Display Inc.

Inventor： Takaaki Kono ,  Makoto Hayashi ,  Yuto Kakinoki

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0362

CPC classification number: G06F3/0362 ,  G06F3/0416 ,  G06F3/0443 ,  G06F3/0448

Abstract: An input detection system includes a detection device including a plurality of detection electrodes arrayed in a detection region, and an input support device including a first electrode, a second electrode provided so as to be movable on a concentric circle about a rotating axis overlapping with the first electrode, and a coupling portion that electrically couples the first electrode and the second electrode. A position of the rotating axis of the input support device is fixed to the detection region of the detection device, and a reference potential is supplied to the detection electrode corresponding to the first electrode and a drive signal is supplied to the detection electrode corresponding to the second electrode.

公开(公告)号：US11804066B2

公开(公告)日：2023-10-31

申请号：US17969025

申请日：2022-10-19

Applicant: Japan Display Inc.

Inventor： Akihiko Fujisawa ,  Takaaki Kono

IPC: G06K9/00 ,  G06V40/13

CPC classification number: G06V40/1318

Abstract: A detection device includes a plurality of detection elements arranged in a matrix having a row-column configuration in a detection area of a substrate, and an initialization circuit configured to apply an initialization potential to each of the detection elements. The initialization circuit has a first mode to apply a same initialization potential to all the detection elements and a second mode to apply different initialization potentials to the detection elements adjacent to each other.

公开(公告)号：US11650703B2

公开(公告)日：2023-05-16

申请号：US15930717

申请日：2020-05-13

Applicant: Japan Display Inc.

Inventor： Takaaki Kono ,  Yoshio Owaki ,  Makoto Hayashi ,  Hiroyuki Miyake

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0445 ,  G06F3/0416 ,  G06F3/0448 ,  G06F2203/0382 ,  G06F2203/04101 ,  G06F2203/04108

Abstract: An object of the present invention is to provide a technique for providing a detection function of detecting that an external approaching object approaches a sensor region of a touch sensor, without increasing an area of the touch sensor and making a circuit complex. According to an aspect, a display device includes a first detection electrode that detects a position of an external approaching object within a detection surface, and plural second detection electrodes that detect that the external approaching object approaches the detection surface. The second detection electrodes extend in a second direction and are arranged in a first direction intersecting the second direction. The second detection electrodes overlap the first detection electrode in a plan view.

公开(公告)号：US12236707B2

公开(公告)日：2025-02-25

申请号：US18296666

申请日：2023-04-06

Applicant: Japan Display Inc.

Inventor： Akihiko Fujisawa ,  Takaaki Kono

IPC: G06V40/13 ,  H10K39/32

Abstract: A detection device includes a sensor circuit provided with a first photodiode in a semiconductor layer, and a signal detector configured to acquire a detection value corresponding to a signal output from the sensor circuit. The signal detector includes a first detection circuit coupled to one end of the first photodiode, a first switch circuit configured to apply a power supply potential to another end of the first photodiode, and a second switch circuit configured to short both ends of the first photodiode.

公开(公告)号：US11803257B2

公开(公告)日：2023-10-31

申请号：US17516128

申请日：2021-11-01

Applicant: Japan Display Inc.

Inventor： Makoto Hayashi ,  Yuto Kakinoki ,  Takaaki Kono

IPC: G06F3/038 ,  H03K17/96 ,  G06F3/044 ,  G06F3/039 ,  G06F3/0362 ,  G06F3/02

CPC classification number: G06F3/038 ,  G06F3/0362 ,  G06F3/0393 ,  G06F3/0446 ,  H03K17/96 ,  G06F3/0202 ,  G06F3/0443 ,  G06F2203/04111

Abstract: An input support device arranged above a detection device including a plurality of electrodes, the input support device comprising: an LC circuit; a first electrode coupled to one end side of the LC circuit; a second electrode coupled to another end side of the LC circuit, and an adjustment circuit coupled to the LC circuit and configured to adjust circuit characteristics of the LC circuit.

公开(公告)号：US11755270B2

公开(公告)日：2023-09-12

申请号：US17727076

申请日：2022-04-22

Applicant: Japan Display Inc.

Inventor： Takaaki Kono ,  Yoshio Owaki ,  Makoto Hayashi

IPC: G06F3/14 ,  G02F1/1333 ,  G02F1/1334 ,  G06F3/0488 ,  H10K59/40 ,  H10K59/128

CPC classification number: G06F3/1423 ,  G02F1/1334 ,  G02F1/13338 ,  G02F1/133342 ,  G06F3/0488 ,  H10K59/128 ,  H10K59/40

Abstract: An object of the present disclosure is to provide a technique capable of displaying an appropriate display image corresponding to a position of an observer. A display device includes a detection electrode, a first screen, and a second screen on a side opposite to the first screen. A distance between the detection electrode and the first screen is longer than a distance between the detection electrode and the second screen, or a dielectric constant between the detection electrode and the first screen is lower than a dielectric constant between the detection electrode and the second screen, or the distance between the detection electrode and the first screen is longer than the distance between the detection electrode and the second screen and the dielectric constant between the detection electrode and the first screen is lower than the dielectric constant between the detection electrode and the second screen.

公开(公告)号：US11681403B2

公开(公告)日：2023-06-20

申请号：US17705932

申请日：2022-03-28

Applicant: Japan Display Inc.

Inventor： Takaaki Kono

IPC: G06F3/044

CPC classification number: G06F3/0446 ,  G06F3/0443 ,  G06F2203/04108

Abstract: A detecting device includes a plurality of drive electrodes extending in a first direction and arrayed in a second direction, a detection electrode facing the drive electrodes in a direction orthogonal to the first direction and the second direction, a drive circuit configured to supply a drive signal to the drive electrodes, and a detector configured to detect proximity of an object to a detection region provided with the detection electrode based on an output from the detection electrode generated according to capacitance generated between the drive electrodes and the detection electrode due to the drive signal.

公开(公告)号：US11513639B2

公开(公告)日：2022-11-29

申请号：US17574903

申请日：2022-01-13

Applicant: Japan Display Inc.

Inventor： Takaaki Kono ,  Yuto Kakinoki ,  Makoto Hayashi

IPC: G06F3/044 ,  G06F3/041

Abstract: An input detection system includes a plurality of drive electrodes and a plurality of detection electrodes aligned in a detection region, an input device including an LC circuit, a first electrode coupled to one end side of the LC circuit, and a second electrode coupled to another end side of the LC circuit, the input support device being disposed on the detection region, and a control circuit configured to detect the input support device based on detection signals that are output from the detection electrodes.