公开(公告)号：US20240220050A1

公开(公告)日：2024-07-04

申请号：US18605445

申请日：2024-03-14

Applicant: Japan Display Inc.

Inventor： Naoki TAKADA ,  Hiroshi YAMAGUCHI ,  Kisho YAMAMOTO

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0445

Abstract: According to one embodiment, a sensor device includes a panel and a control circuit. The panel includes an insulating layer, a first electrode, and a second electrode. The control circuit including a first circuit including a timing control circuit and a first amplifier, and a second circuit including a detection circuit connected to a ground line. During a first sensing drive period, the first output unit outputs a first synchronization signal, the timing control circuit outputs a second synchronization signal, the first amplifier provides the amplified second synchronization signal to each of the floating ground line and the first electrode, and the detector reads a change in a sensor signal.

公开(公告)号：US20200210066A1

公开(公告)日：2020-07-02

申请号：US16725408

申请日：2019-12-23

Applicant: Japan Display Inc.

Inventor： Kisho YAMAMOTO ,  Naoki TAKADA ,  Hiroshi YAMAGUCHI

IPC: G06F3/041 ,  G06F3/044

Abstract: According to an aspect, a detection device includes: a plurality of first sensor electrodes disposed side by side in a first direction and a second direction intersecting the first direction; and a plurality of second sensor electrodes disposed side by side in the first direction and the second direction. One of the second sensor electrodes overlaps a plurality of first sensor electrodes out of the first sensor electrodes in planar view. Each of the second sensor electrodes has a plurality of electric-field transmission regions. One of the electric-field transmission regions overlaps a corresponding one of the first sensor electrodes in planar view and does not straddle two first sensor electrodes in planar view.

公开(公告)号：US20220283689A1

公开(公告)日：2022-09-08

申请号：US17825791

申请日：2022-05-26

Applicant: Japan Display Inc.

Inventor： Naoki TAKADA ,  Hiroshi YAMAGUCHI ,  Kisho YAMAMOTO

IPC: G06F3/041 ,  G06F3/044

Abstract: According to one embodiment, a sensor device includes a panel and a control circuit. The panel includes an insulating layer, a first electrode, and a second electrode. The control circuit including a first circuit including a timing control circuit and a first amplifier, and a second circuit including a detection circuit connected to a floating ground line. During a first sensing drive period, the first output unit outputs a first synchronization signal, the timing control circuit outputs a second synchronization signal, the first amplifier provides the amplified second synchronization signal to each of the floating ground line and the first electrode, and the detector reads a change in a sensor signal.

公开(公告)号：US20220187975A1

公开(公告)日：2022-06-16

申请号：US17684627

申请日：2022-03-02

Applicant: Japan Display Inc.

Inventor： Akihiko FUJISAWA ,  Naoki TAKADA ,  Kisho YAMAMOTO

IPC: G06F3/041 ,  G06F3/044

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.