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公开(公告)号：US10775928B2
公开(公告)日：2020-09-15
申请号：US16532072
申请日：2019-08-05
Applicant: Japan Display Inc.
Inventor： Takafumi Suzuki , Shota Hosaka , Koji Noguchi , Yasuyuki Teranishi
Abstract: A force detection apparatus includes: a force detector that includes an electrode and a conductor facing the electrode across a first and a second layers and outputs a force signal value before correction; and a force detection controller outputting a force signal value after correction having a linear relationship with a force. In a first range of force in which the first layer is deformed and the second layer is not deformed, the force detection controller calculates the force signal value after correction, based on a product of the force and a first constant. In a second range of force in which the first and second layers are deformed, the force detection controller calculates the force signal value after correction, based on a sum of a product of a threshold and the first constant and a product of a difference between the force and the threshold and a second constant.
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公开(公告)号：US10747348B2
公开(公告)日：2020-08-18
申请号：US16206657
申请日：2018-11-30
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yasushi Nakano , Masaki Murase
Abstract: According to one embodiment, a sensor-equipped display device includes a first substrate includes a first electrode located in a display area in which an image is displayed, a second substrate includes a second electrode which is located in the display area, and outputs a sensor signal, and a flexible substrate includes a first connection portion connected to the first substrate and a second connection portion connected to the second substrate, the flexible substrate includes a common base layer extending between the first connection portion and the second connection portion.
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公开(公告)号：US10739905B2
公开(公告)日：2020-08-11
申请号：US16124355
申请日：2018-09-07
Applicant: Japan Display Inc.
Inventor： Kazuyuki Kobayashi , Hayato Kurasawa , Hiroshi Mizuhashi , Masaya Tamaki , Takeo Koito , Koji Noguchi
Abstract: According to one embodiment, a sensor-equipped display device includes a display panel, a detection electrode, a conductive member arranged at intervals from the display panel and the detection electrode, and controller. In a first sense period, the controller drives a common electrode of the display panel or the detection electrode and extracts input position data from the detection electrode. In a second sense period, the controller drives the conductive member and extracts first input pressure data from a first electrode, the controller drives a second electrode and extracts second input pressure data from the conductive member, or the controller drives a third electrode and extracts third input pressure data from the third electrode.
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公开(公告)号：US10592025B2
公开(公告)日：2020-03-17
申请号：US15692514
申请日：2017-08-31
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Takafumi Suzuki , Michita Kudo
IPC: G06F3/041 , G06F3/044 , G02F1/1333 , G02F1/1343
Abstract: According to one embodiment, a display device includes a display panel including a first substrate including a display area and a first detection electrode, and a second force sensing electrode opposing the display area and the first detection electrode with a gap therebetween. The second force sensing electrode includes a central portion opposing a central portion of the display region, a peripheral portion located to surround the central portion and a reinforcing structure which reinforces the peripheral portion, and the gap between the central portion and the first detection electrode is greater than a gap between the peripheral portion and the first detection electrode.
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公开(公告)号：US10386984B2
公开(公告)日：2019-08-20
申请号：US16183030
申请日：2018-11-07
Applicant: Japan Display Inc.
Inventor： Koji Ishizaki , Koji Noguchi , Takayuki Nakanishi , Yasuyuki Matsui , Masanobu Ikeda
IPC: G06F3/047 , G09G5/00 , G09G5/02 , G02F1/1333 , G06F3/041 , G06F3/044 , G02F1/1345
Abstract: A display unit with a touch detection function including: a plurality of touch detection electrodes arranged side by side to extend in a direction, each of the touch detection electrodes being formed in a predetermined electrode pattern including electrode portion and opening portion and outputting a detection signal, based on a variation in capacitance due to an external proximity object; and a plurality of display elements formed in a layer different from a layer of the touch detection electrodes, a predetermined number of the display elements being arranged within a width dimension of a region corresponding to each of the touch detection electrodes. The predetermined electrode pattern corresponds to a layout pattern of the display elements.
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Patent Agency Ranking
公开(公告)号：US10386981B2
公开(公告)日：2019-08-20
申请号：US16174475
申请日：2018-10-30
Applicant: Japan Display Inc.
Inventor： Koji Ishizaki , Koji Noguchi , Osamu Ishige
Abstract: A display device with a touch detection function including: a plurality of elements performing display operation; a plurality of touch detection electrodes arranged side by side to extend in one direction, and each outputting a detection signal based on a change in an electrostatic capacitance caused by an external proximity object; a conductive film insulated from or connected with high resistance to the touch detection electrodes, and disposed to cover the touch detection electrodes; and a touch detection circuit detecting the external proximity object by sampling the detection signal. The conductive film has a sheet resistance equal to or smaller than a predetermined resistance value, and has a time constant larger than a predetermined minimum time constant defined by sampling timings in the touch detection circuit.
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公开(公告)号：US10324579B2
公开(公告)日：2019-06-18
申请号：US16161343
申请日：2018-10-16
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yoshitoshi Kida
IPC: G06F3/044 , G06F3/041 , G02F1/1333
Abstract: A display apparatus with a substrate having a long side and a short side, a plurality of driving electrodes arranged on the substrate parallel to the long side of the substrate, a plurality of touch detection electrodes arranged on the substrate parallel to the short side of the substrate, a control unit electrically coupled to each of the plurality of driving electrodes and which sequentially drives the plurality of driving electrodes, and a detection unit electrically coupled to each of the touch detection electrodes.
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公开(公告)号：US10303313B2
公开(公告)日：2019-05-28
申请号：US15421620
申请日：2017-02-01
Applicant: Japan Display Inc.
Inventor： Hayato Kurasawa , Koji Noguchi
Abstract: A display device includes a substrate, a plurality of pixel electrodes, a switching element, and a first electrode. The substrate has a first surface and a second surface opposite to the first surface. The pixel electrodes are provided to the first surface side and supplied with a pixel signal for displaying an image. The switching element is provided to the first surface side and coupled to the pixel electrodes. The first electrode is provided to a layer closer to the first surface than the switching element in a manner facing the switching element in a direction perpendicular to the first surface of the substrate and having lower light transmittance than that of the substrate.
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公开(公告)号：US20190114014A1
公开(公告)日：2019-04-18
申请号：US16206657
申请日：2018-11-30
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yasushi Nakano , Masaki Murase
Abstract: According to one embodiment, a sensor-equipped display device includes a first substrate includes a first electrode located in a display area in which an image is displayed, a second substrate includes a second electrode which is located in the display area, and outputs a sensor signal, and a flexible substrate includes a first connection portion connected to the first substrate and a second connection portion connected to the second substrate, the flexible substrate includes a common base layer extending between the first connection portion and the second connection portion.
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160.发明申请公开(公告)号：US20190107914A1
公开(公告)日：2019-04-11
申请号：US16201475
申请日：2018-11-27
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Koji Ishizaki , Hayato Kurasawa
Abstract: According to one embodiment, an electrostatic capacitance-type sensor-equipped display device includes a display panel with a display surface which displays an image. The sensor includes a plurality of detection electrodes disposed in a matrix, the detection electrodes being mutually electrically independently provided above the display surface and being configured to detect a variation in electrostatic capacitance, and a plurality of lead lines provided above the display surface, connected to the detection electrodes in a one-to-one correspondence, and formed of a metal.
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