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公开(公告)号：US10429981B2
公开(公告)日：2019-10-01
申请号：US15357666
申请日：2016-11-21
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Tadayoshi Katsuta , Yasuyuki Teranishi
IPC: G06F3/041 , G06F3/044 , G02F1/1333 , G02F1/1343 , G02F1/1335 , G02F1/1362 , G02F1/1368
Abstract: A detection device includes a substrate, first electrodes, second electrodes, and a conductor. The substrate has a first surface and a second surface opposite to the first surface. The first electrodes are provided in a display area of the substrate and detect the position of an object being in contact with or in proximity to the first surface side of the substrate or pressure of the object being in contact with the first surface side. The second electrodes are provided along at least one side of the outer periphery of the display area. The conductor is provided on the second surface side of the substrate apart from the substrate and generates an electrostatic capacitor between the conductor and the second electrodes.
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公开(公告)号：US10372267B2
公开(公告)日：2019-08-06
申请号：US15661248
申请日：2017-07-27
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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13.发明授权公开(公告)号：US10353513B2
公开(公告)日：2019-07-16
申请号：US15470266
申请日：2017-03-27
Applicant: Japan Display Inc.
Inventor： Hiroshi Mizuhashi , Koji Noguchi
Abstract: According to an aspect, a touch detection apparatus includes: a plurality of drive electrodes, wherein at least one of the drive electrodes includes a plurality of subdivided electrodes; a plurality of first touch detection electrodes; a second touch detection electrode; a first shift register circuit in which a plurality of first shift signal output circuits are sequentially coupled to one another; a second shift register circuit in which a plurality of second shift signal output circuits are sequentially coupled to one another; and a selection circuit that supplies a signal of the first shift register circuit to the drive electrode in a first mode, and supplies a signal of the second shift register circuit to the subdivided electrode in a second mode.
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公开(公告)号：US20190204984A1
公开(公告)日：2019-07-04
申请号：US16295021
申请日：2019-03-07
Applicant: Japan Display Inc.
Inventor： Takayuki Nakanishi , Koji Noguchi , Koji Ishizaki , Yasuyuki Teranishi , Takeya Takeuchi
IPC: G06F3/041 , G02F1/1343 , G09G5/18 , G02F1/1333 , G06F3/044
Abstract: An information input device including a touch panel configured to be provided with a touch sensor that detects a position at which a sensing object is brought close to a sensing surface. In this information input device, the touch sensor has a scanning electrode and a detecting electrode that is opposed to the scanning electrode with the intermediary of a dielectric substance, and is a capacitive sensor whose electrostatic capacitance changes if the sensing object is brought close to the detecting electrode. Furthermore, a slit is formed in a surface of the detecting electrode opposed to the scanning electrode.
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公开(公告)号：US20190171316A1
公开(公告)日：2019-06-06
申请号：US15928544
申请日：2018-03-22
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yoshitoshi Kida , Kohei Azumi
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/0418 , G06F3/044 , G06F3/047 , G09G3/36 , G09G3/3677 , G09G3/3685 , G09G5/003 , G09G5/18 , G09G2300/0426 , G09G2310/0202 , G09G2310/0297 , G09G2310/08
Abstract: A display apparatus includes: a display device; a touch detection device; and a driver unit driving the display device so as to sequentially display M horizontal lines in each of plural unit drive periods forming one frame period and driving the touch detection device in N touch detection periods provided in each unit drive period, in which N is lower than M.
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Patent Agency Ranking
公开(公告)号：US10228788B2
公开(公告)日：2019-03-12
申请号：US15469657
申请日：2017-03-27
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：US10222887B2
公开(公告)日：2019-03-05
申请号：US15470349
申请日：2017-03-27
Applicant: Japan Display Inc.
Inventor： Hiroshi Mizuhashi , Koji Noguchi
Abstract: According to an aspect, a display apparatus with a touch detection function includes: a display device including a display region in which a plurality of pixels are arranged; a pixel signal line that transmits a pixel signal to the pixel; outer display region wiring including wiring that is electrically coupled to the pixel signal line and extends along a predetermined direction outside the display region; and a touch detection electrode arranged at a position overlapping the outer display region wiring in a non-contact state, a longitudinal direction of the touch detection electrode being along a direction intersecting with the predetermined direction.
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公开(公告)号：US10175798B2
公开(公告)日：2019-01-08
申请号：US15410633
申请日：2017-01-19
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：US10133106B2
公开(公告)日：2018-11-20
申请号：US14935613
申请日：2015-11-09
Applicant: Japan Display Inc.
Inventor： Naosuke Furutani , Atsushi Nakamura , Osamu Ishige , Koji Noguchi , Chihiro Tanaka
IPC: G02F1/1335 , G02F1/1333 , G06F3/044
Abstract: An image quality of a display device is improved. The display device includes: a display unit having a display functional layer; a cover member having a front surface and a back surface positioned on an opposite side of the front surface and covering the display unit; and a polarizing plate having a front surface so as to oppose the back surface of the cover member through a space spreading along the back surface of the cover member. Also, a reflection suppressing layer reducing reflected light which is visually recognized on the display surface side is formed on either one of the back surface of the cover member and the front surface of the polarizing plate.
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公开(公告)号：US20180307360A1
公开(公告)日：2018-10-25
申请号：US16025368
申请日：2018-07-02
Applicant: Japan Display Inc.
Inventor： Yoshitoshi Kida , Koji Noguchi , Hiroshi Mizuhashi , Kohei Azumi
CPC classification number: G06F3/0412 , G02F1/13338 , G06F3/044 , H03K17/9622 , H03K2217/96031
Abstract: There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend.
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