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公开(公告)号：US12182357B2
公开(公告)日：2024-12-31
申请号：US18605445
申请日：2024-03-14
Applicant: Japan Display Inc.
Inventor： Naoki Takada , Hiroshi Yamaguchi , Kisho Yamamoto
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.
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公开(公告)号：US10976861B2
公开(公告)日：2021-04-13
申请号：US16725408
申请日：2019-12-23
Applicant: Japan Display Inc.
Inventor： Kisho Yamamoto , Naoki Takada , Hiroshi Yamaguchi
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.
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公开(公告)号：US11960677B2
公开(公告)日：2024-04-16
申请号：US17825791
申请日：2022-05-26
Applicant: Japan Display Inc.
Inventor： Naoki Takada , Hiroshi Yamaguchi , Kisho Yamamoto
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 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.
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公开(公告)号：US11934611B2
公开(公告)日：2024-03-19
申请号：US17684627
申请日：2022-03-02
Applicant: Japan Display Inc.
Inventor： Akihiko Fujisawa , Naoki Takada , Kisho Yamamoto
CPC classification number: G06F3/04166 , G06F3/0446
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.
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