公开(公告)号：US10824263B2

公开(公告)日：2020-11-03

申请号：US15963264

申请日：2018-04-26

Applicant: Japan Display Inc.

Inventor： Takayuki Nakanishi ,  Naoki Takada ,  Shota Hosaka

IPC: G06F3/041 ,  G06F3/044

Abstract: A detection device and a display device include first electrodes, second electrodes, a detector, and a coupling circuit. The first electrodes are disposed side by side in a first direction and a second direction intersecting the first direction. The second electrodes are disposed on the side facing the first electrodes and extend in the second direction. The detector receives a first detection signal output from the second electrodes based on changes in capacitance between the first electrodes and the second electrodes or a second detection signal output from the first electrodes based on changes in capacitance in the first electrodes.

公开(公告)号：US10664114B2

公开(公告)日：2020-05-26

申请号：US16144419

申请日：2018-09-27

Applicant: Japan Display Inc.

Inventor： Naoki Takada ,  Takayuki Nakanishi

IPC: G06F3/044 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1343 ,  G06F3/041

Abstract: According to an aspect, a detection device includes: at least one substrate; a plurality of first electrodes extending in a first direction of the substrate and are arrayed in a second direction intersecting the first direction; a plurality of second electrodes arrayed in a row-column configuration in a layer different from a layer of the first electrodes; and a coupling circuit configured to switch between a first coupling state of electrically coupling a plurality of second electrodes arrayed in the second direction to one another, and a second coupling state of electrically coupling a plurality of second electrodes to one another. A combination of the second electrodes is different from a combination of the second electrodes in the first coupling state.

公开(公告)号：US10551953B2

公开(公告)日：2020-02-04

申请号：US15885251

申请日：2018-01-31

Applicant: Japan Display Inc.

Inventor： Chihiro Tanaka ,  Naoki Takada ,  Toshihiko Tanaka

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  G02F1/1362 ,  G02F1/1333

Abstract: According to an aspect, a display apparatus includes: a plurality of pixels configured to display an image; a plurality of signal lines configured to supply pixel signals to the pixels; a plurality of detection conductors configured to be capacitively coupled to the signal lines; and a controller configured to output the pixel signals to the signal lines and read detection signals generated in the detection conductors due to the pixel signals.

公开(公告)号：US20190243484A1

公开(公告)日：2019-08-08

申请号：US16256197

申请日：2019-01-24

Applicant: Japan Display Inc.

Inventor： Chihiro Tanaka ,  Hayato Kurasawa ,  Naoki Takada ,  Toshihiko Tanaka ,  Tatsuya Wakimoto ,  Keita Sasanuma ,  Koji Ishizaki

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F2203/04101 ,  G06F2203/04107 ,  G06F2203/04111

Abstract: A detection apparatus comprising: a first substrate; a detection region having a first detection side extending along a first direction parallel with a surface of the first substrate and a second detection side extending along a second direction intersecting the first direction; a frame region provided outside the detection region and having a first frame region extending along the first detection side and a second frame region extending along the second detection side; a first electrode provided at a position overlapping the detection region of the first substrate, the first electrode extending in the second direction; a second electrode provided at a position overlapping the detection region, the second electrode extending in the first direction; a plurality of terminals provided in the first frame region of the first substrate and arrayed in the first direction, and including a first terminal; a first wire; and a second wire.

公开(公告)号：US10175795B2

公开(公告)日：2019-01-08

申请号：US15266099

申请日：2016-09-15

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Toshihiko Tanaka ,  Naoki Takada ,  Chihiro Tanaka ,  Koji Ishizaki

IPC: G06F3/045 ,  G06F3/041 ,  G06F3/044 ,  G02F1/133

Abstract: According to one embodiment, a sensor-equipped display device includes a display panel which includes a sensor driving electrode disposed in a display area for displaying an image, detection electrodes each including a body portion opposed to the sensor driving electrode in the display area and a broadened portion connected to the body portion and formed to be wider than the body portion, and a lead line disposed in a non-display area outside the display area and electrically connected to the broadened portion. The broadened portion is disposed in the non-display area without being overlaid on the display area in planar view.

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

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 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：US11650694B2

公开(公告)日：2023-05-16

申请号：US17477015

申请日：2021-09-16

Applicant: Japan Display Inc.

Inventor： Yuto Kakinoki ,  Naoki Takada

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/02 ,  G06F3/0362

CPC classification number: G06F3/04166 ,  G06F3/02 ,  G06F3/0362 ,  G06F3/0446

Abstract: A sensor device includes a capacitive touch panel including a plurality of electrodes, an input device configured such that a resonance circuit including a first conductor and a second conductor is covered with a non-conductor, and a sensor controller. The first conductor and the second conductor are capacitively coupled to at least one of a plurality of electrodes in the touch panel when the input device is disposed on the touch panel or when the input device disposed on the touch panel is operated. The sensor controller is configured to detect positions of the first conductor and the second conductor on the touch panel by applying a voltage to the plurality of electrodes in the touch panel based on a resonance frequency of the resonance circuit.

公开(公告)号：US11513649B2

公开(公告)日：2022-11-29

申请号：US17233559

申请日：2021-04-19

Applicant: Japan Display Inc.

Inventor： Naoki Takada ,  Toshihiko Tanaka ,  Nobuo Tsubokura ,  Takuya Nishimoto

IPC: G06F3/044 ,  G06F3/041 ,  G05G1/10

Abstract: According to one embodiment, a sensor device includes an electrostatic capacitive touch panel, and an input device mounted on the touch panel. The input device includes a knob rotatably disposed about a rotation axis, and a first conductor held by the knob and being in contact with the touch panel in a part of a circumference about the rotation axis.

公开(公告)号：US11301075B2

公开(公告)日：2022-04-12

申请号：US17186103

申请日：2021-02-26

Applicant: JAPAN DISPLAY INC.

Inventor： Chihiro Tanaka ,  Naoki Takada ,  Toshihiko Tanaka ,  Hayato Kurasawa ,  Koji Ishizaki ,  Tatsuya Wakimoto ,  Masaki Miyatake

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/044 ,  G02F1/1339

Abstract: According to one embodiment, a touch detection device includes first detection electrodes in a detection area, second detection electrodes in the detection area, extending to intersect the first detection electrodes, first control lines connected to the first detection electrodes, respectively, and provided in a non-detection area, and second control lines connected to the second detection electrodes, respectively, and provided in the non-detection area. The second control lines overlap the first control lines at a plurality of positions as seen in plan view, such that areas of overlapping portions in which the first control lines overlap the second control lines are substantially equalized.

公开(公告)号：US11249335B2

公开(公告)日：2022-02-15

申请号：US17167087

申请日：2021-02-04

Applicant: Japan Display Inc.

Inventor： Koji Yoshida ,  Hirofumi Ohira ,  Soichiro Ohama ,  Naoki Takada ,  Takayuki Nakanishi

IPC: G02F1/1333 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/155 ,  G02F1/163

Abstract: The display device includes a display panel and a front surface panel that is superimposed with the display panel, and that is switched between a reflective state in which incident light is reflected and a transmissive state in which incident light is transmitted. The front surface panel can detect presence of an object to be detected.