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公开(公告)号：US20240069681A1
公开(公告)日：2024-02-29
申请号：US18500172
申请日：2023-11-02
Applicant: Japan Display Inc.
Inventor： Takayuki Nakanishi , Koji Noguchi , Koji Ishizaki , Yasuyuki Teranishi , Takeya Takeuchi
CPC classification number: G06F3/0446 , G06F3/03547 , G06F3/0412 , G06F3/0418 , G06F3/0445 , G06F3/047 , G09G3/2983 , G09G3/2986 , G09G3/3696 , H01J11/12 , G02F1/134363
Abstract: A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise. The touch panel includes: a plurality of detection scan electrodes extending in a first direction and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.
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公开(公告)号：US20230205382A1
公开(公告)日：2023-06-29
申请号：US18173879
申请日：2023-02-24
Applicant: Japan Display Inc.
Inventor： Takayuki Nakanishi , Koji Noguchi , Koji Ishizaki , Yasuyuki Teranishi , Takeya Takeuchi
CPC classification number: G06F3/0446 , G09G3/2983 , G06F3/03547 , H01J11/12 , G09G3/2986 , G06F3/047 , G06F3/0445 , G06F3/0412 , G06F3/0418 , G09G3/3696 , G02F1/134363
Abstract: A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise. The touch panel includes: a plurality of detection scan electrodes extending in a first direction and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.
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公开(公告)号：US11169639B2
公开(公告)日：2021-11-09
申请号：US17130353
申请日：2020-12-22
Applicant: Japan Display Inc.
Inventor： Yoshitoshi Kida , Koji Noguchi , Yasuyuki Teranishi , Hiroshi Mizuhashi , Kohei Azumi
Abstract: A display device is provided and includes a substrate; pixel electrode on the substrate; a signal line coupled to the pixel electrode; a plurality of drive electrodes including a first drive electrode overlapping the signal line; a drive signal line configured to supply a drive signal to the first drive electrode; and a drive electrode switch connecting the drive signal line and the first drive electrode, wherein during a touch detection period, the drive electrode switch is closed to apply the drive signal to the first drive electrode.
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公开(公告)号：US20210294453A1
公开(公告)日：2021-09-23
申请号：US17339203
申请日：2021-06-04
Applicant: Japan Display Inc.
Inventor： Takayuki Nakanishi , Koji Noguchi , Koji Ishizaki , Yasuyuki Teranishi , Takeya Takeuchi
Abstract: A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise. The touch panel includes: a plurality of detection scan electrodes extending in a first direction and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. A ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and a first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and a second detection electrode. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.
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公开(公告)号：US10949016B2
公开(公告)日：2021-03-16
申请号：US15872422
申请日：2018-01-16
Applicant: Japan Display Inc.
Inventor： Yasuyuki Teranishi , Yoshiharu Nakajima
Abstract: According to one embodiment, a display device which displays an image in a display area based on a pixel signal is provided. The display device includes a first substrate, a second substrate opposed to the first substrate, a first electrode arranged in the first substrate and overlapping a frame area outside the display area, second electrodes arranged in the second substrate and overlapping the display area, and a touch detection driver configured to output a drive signal to the first electrode and detect contact or proximity of an object with the frame area based on electrostatic capacitance between the first electrode and the second electrodes.
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Patent Agency Ranking
公开(公告)号：US10761640B2
公开(公告)日：2020-09-01
申请号：US15872480
申请日：2018-01-16
Applicant: Japan Display Inc.
Inventor： Yasuyuki Teranishi , Takafumi Suzuki , Michita Kudo
Abstract: According to one embodiment, a display device includes first electrodes overlapping a display area, a cover base covering the display area and a frame area, a second electrode arranged in the cover base and overlapping the frame area, a touch detection driver configured to output a drive signal to the second electrode, and a level shifter arranged between the second electrode and the touch detection driver, and configured to increase a signal level of the drive signal and output the drive signal having the increased signal level to the second electrode. The touch detection driver is configured to detect contact or proximity to an object with the frame area based on electrostatic capacitance between the first electrodes and the second electrode.
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公开(公告)号：US10747377B2
公开(公告)日：2020-08-18
申请号：US15936939
申请日：2018-03-27
Applicant: Japan Display Inc.
Inventor： Yasuyuki Teranishi , Gen Koide
Abstract: A display device includes a substrate, first electrodes, second electrodes, and a driver. The first electrodes are disposed in a matrix (row-column configuration) in a display region of the substrate. The second electrodes are disposed in a peripheral region on the outside of the display region of the substrate. The driver supplies a drive signal to the first electrodes and the second electrodes. The first electrodes output detection signals corresponding to self-capacitance changes in the first electrodes. The second electrodes output detection signals corresponding to self-capacitance changes in the second electrodes.
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公开(公告)号：US10514795B2
公开(公告)日：2019-12-24
申请号：US16251190
申请日：2019-01-18
Applicant: Japan Display Inc.
Inventor： Tadayoshi Katsuta , Koji Noguchi , Daisuke Ito , Yasuyuki Teranishi
Abstract: A performance of a display device having an input device is improved. A display device includes: an electro-optical layer; a first driving electrode and a second driving electrode which drives the electro-optical layer; a driver chip which outputs a video signal; a switch circuit which is arranged outside the driver chip, which selects a potential to be supplied to the second driving electrode, and which includes a first switch element and a second switch element; a shift register circuit connected to the switch circuit; and a detection circuit which detects that an object is close or in contact. Each of the first switch element and the second switch element is selectively turned ON or OFF by the shift register circuit. The detection circuit is electrically connected to the first switch element and the second switch element.
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公开(公告)号：US20190302945A1
公开(公告)日：2019-10-03
申请号：US16444377
申请日：2019-06-18
Applicant: Japan Display Inc.
Inventor： Hayato Kurasawa , Yasuyuki Teranishi , Hiroshi Mizuhashi , Koji Ishizaki , Daisuke Ito
IPC: G06F3/041 , G02F1/1333 , G06F3/044
Abstract: According to one embodiment, a sensor-equipped display device includes first electrodes and a detection electrode. The first electrodes constitute sensor drive electrodes by being supplied with sensor drive signals separately and sequentially or sensor drive electrodes by simultaneously supplying the sensor drive signals to the first electrodes adjacent to each other. A width of the sensor drive electrode including the first electrode on the edge is smaller than a width of the other sensor drive electrode not including the first electrode on the edge.
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公开(公告)号：US10409431B2
公开(公告)日：2019-09-10
申请号：US15410656
申请日：2017-01-19
Applicant: Japan Display Inc.
Inventor： Yasuyuki Teranishi
Abstract: An input device includes a plurality of first electrodes each extending in a first direction and arrayed along a second direction crossing the first direction at a first separation distance, and a detection unit configured to detect an output signal based on electrostatic capacitance of each of the plurality of first electrodes. In addition, each of the plurality of first electrodes includes a plurality of electrode portions each extending along the first direction, and a joining portion connecting the plurality of electrode portions with each other. Moreover, when seen in a plan view, each of the plurality of electrode portions connected to the joining portion is arrayed along the second direction at a second separation distance, and the first separation distance is smaller than the second separation distance.
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