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31.发明授权公开(公告)号：US10558307B2
公开(公告)日：2020-02-11
申请号：US15903897
申请日：2018-02-23
Applicant: Japan Display Inc.
Inventor： Naoki Takada , Hayato Kurasawa , Koji Noguchi , Takayuki Nakanishi , Yasuyuki Teranishi
Abstract: A display device includes a substrate, a plurality of detection electrodes, a drive circuit, a detector, and a first switching circuit. The detection electrodes are provided in a display area of the substrate. The drive circuit supplies a drive signal to the detection electrodes. The detector receives, from the detection electrodes, a detection signal corresponding to a capacitance change in the detection electrodes occurring when the drive signal is supplied. The first switching circuit is coupled to the detector via wiring and provided between the detection electrodes and the detector. The first switching circuit changes the number of detection electrodes electrically coupled to one of the wiring based on the detection signal.
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公开(公告)号：US10466825B2
公开(公告)日：2019-11-05
申请号：US16207601
申请日：2018-12-03
Applicant: Japan Display Inc.
Inventor： Hayato Kurasawa , Toshihiko Tanaka , Naoki Takada , Chihiro Tanaka , Koji Ishizaki
IPC: G06F3/045 , G06F3/041 , G06F3/044 , G02F1/133 , G02F1/1333 , G02F1/1343
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.
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公开(公告)号：US12079409B2
公开(公告)日：2024-09-03
申请号：US18195511
申请日：2023-05-10
Applicant: Japan Display Inc.
Inventor： Hayato Kurasawa , Toshihiko Tanaka , Naoki Takada , Chihiro Tanaka , Koji Ishizaki
IPC: G06F3/041 , G02F1/133 , G02F1/1333 , G02F1/1343 , G06F3/044
CPC classification number: G06F3/0412 , G02F1/133 , G02F1/13338 , G02F1/1343 , G06F3/04164 , G06F3/0445 , G06F3/0446
Abstract: A sensor device is provided and includes electrodes each including first parts arranged in a first direction and a second part connected to the first parts, the first parts each having a first mesh shape which is formed of first metal wires, and the second part having a second mesh shape which is formed of second metal wires, wherein a longitudinal direction of the second part is the first direction, and at least one of the first mash shape and the second mash shape has an intersection portion at which two of the first metal wires or two of the second metal wires intersect.
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公开(公告)号：US11755076B2
公开(公告)日：2023-09-12
申请号：US17304405
申请日：2021-06-21
Applicant: Japan Display Inc.
Inventor： Takayuki Nakanishi , Naoki Takada , Yuto Kakinoki
CPC classification number: G06F1/1684 , G06F1/189
Abstract: Included are at least one first semiconductor resistance element overlapping with one of the spacers and provided as the same layer as the semiconductor layer of the pixel transistors, at least one second semiconductor resistance element provided as the same layer as the semiconductor layer of the pixel transistors and not overlapping with any of the spacers, and a detection circuit detecting a force applied to the display region based on a midpoint voltage between the first semiconductor resistance element and the second semiconductor resistance element, and a resistance value of the second semiconductor resistance element is equivalent to a resistance value of the first semiconductor resistance element when no force is applied.
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公开(公告)号：US11733802B2
公开(公告)日：2023-08-22
申请号：US17239043
申请日：2021-04-23
Applicant: Japan Display Inc.
Inventor： Naoki Takada
CPC classification number: G06F3/0418 , G06F3/0412 , G06F3/0446 , G06F2203/04107
Abstract: According to one embodiment, a display device includes a plurality of first electrodes overlap a display area, extend in a first direction, and are arranged in a second direction, a plurality of second electrodes overlap the display area, extend in the second direction, and are arranged in the first direction, a plurality of conductive lines are provided along the first electrodes, and connected to the second electrodes, respectively, and a touch detection driver is configured to detect contact or approach of an object with respect to the display area. In a case where a distance between a conductive line and one of the first electrodes near the conductive line is less than a predetermined value, a shielding portion is formed in the second electrode.
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Patent Agency Ranking
公开(公告)号：US11693509B2
公开(公告)日：2023-07-04
申请号：US17900327
申请日：2022-08-31
Applicant: Japan Display Inc.
Inventor： Fumihoru Nakano , Naoki Takada , Takayuki Nakanishi
CPC classification number: G06F3/04166 , G06F3/047 , G06F3/0416 , G06F3/0443 , G06F3/0446 , G06F2203/04108
Abstract: A sensing device includes a plurality of sensing electrodes arranged in the row and column directions to detect a close object, a plurality of wirings connected to each of the plurality of sensing electrodes, a sensing circuit connected to the plurality of wirings and detecting voltage values of a plurality of sensing electrodes in a plurality of sensing periods and a calculation circuit calculating a position of the close object in proximity using the voltage values detected by the sensing circuit. The sensing circuit uses a set of sensing electrodes adjacent to each other in row and column direction as a sensing unit, sets the plurality of sensing periods consecutively, and changes the sensing electrodes included in the sensing unit to be different by one row in the row direction or one column for each sensing periods.
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公开(公告)号：US11531432B2
公开(公告)日：2022-12-20
申请号：US17410475
申请日：2021-08-24
Applicant: Japan Display Inc.
Inventor： Takayuki Nakanishi , Naoki Takada , Fumitaka Gotoh , Shota Hosaka
IPC: G06F3/041 , G06F3/044 , H03K17/96 , H03K17/955
Abstract: A proximity sensor is arranged with a first electrode input with a first signal, a second electrode input with a second signal different from the first signal, a third electrode arranged closer to the first electrode than the second electrode, and the second signal has a reverse phase of the first signal.
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公开(公告)号：US11320923B2
公开(公告)日：2022-05-03
申请号：US17161226
申请日：2021-01-28
Applicant: Japan Display Inc.
Inventor： Chihiro Tanaka , Naoki Takada , Toshihiko Tanaka
IPC: G06F3/041 , G09G3/36 , G06F3/044 , G02F1/1362 , G02F1/1333
Abstract: A control circuit for a display apparatus is provided and includes a buffer configured to temporarily store therein externally-supplied image data; and a controller configured to output pixel signals to signal lines of the display apparatus based on the image data stored in the buffer and read detection signals generated in detection conductors which extend along the signal lines of the display apparatus due to the pixel signals.
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公开(公告)号：US11175784B2
公开(公告)日：2021-11-16
申请号：US17089971
申请日：2020-11-05
Applicant: Japan Display Inc.
Inventor： Toshihiko Tanaka , Naoki Takada , Chihiro Tanaka
Abstract: A touch panel driving circuit is provided and includes a plurality of output circuits each outputting a driving signal, respectively; a power supply line connected to a power of the plurality of output circuits; a power supply circuit; and a resistor element that is provided in common for the plurality of output circuits and is different from a resistance of the power supply line, wherein the power of the plurality of output circuits is connected to the power supply circuit through the resistor element and the power supply line.
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公开(公告)号：US11016604B2
公开(公告)日：2021-05-25
申请号：US16567016
申请日：2019-09-11
Applicant: Japan Display Inc.
Inventor： Naoki Takada
Abstract: According to one embodiment, a display device includes a plurality of first electrodes overlap a display area, extend in a first direction, and are arranged in a second direction, a plurality of second electrodes overlap the display area, extend in the second direction, and are arranged in the first direction, a plurality of conductive lines are provided along the first electrodes, and connected to the second electrodes, respectively, and a touch detection driver is configured to detect contact or approach of an object with respect to the display area. In a case where a distance between a conductive line and one of the first electrodes near the conductive line is less than a predetermined value, a shielding portion is formed in the second electrode.
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