Patents by Inventor Takayuki Nakanishi
Takayuki Nakanishi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200401267Abstract: A detection device comprising: a plurality of first electrodes; a plurality of second electrodes facing or being close to the first electrodes; a first drive circuit configured to supply a first drive signal to the first electrodes; a second drive circuit configured to supply a second drive signal to the second electrodes, the second drive signal having a same waveform as that of the first drive signal and in synchronization with the first drive signal; and a detector configured to detect a first detection signal, a second detection signal, and a third detection signal.Type: ApplicationFiled: September 4, 2020Publication date: December 24, 2020Inventors: Shota HOSAKA, Takayuki NAKANISHI, Naoki TAKADA, Fumitaka GOTOH
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Patent number: 10872934Abstract: Disclosed is a display device including: a plurality of pixel electrodes; a plurality of opposing electrodes located over the plurality of pixel electrodes and arranged in a stripe shape; and an EL layer sandwiched between the plurality of pixel electrodes and the plurality of opposing electrodes. The plurality of opposing electrodes is electrically independent from one another. Each of the opposing electrodes may be electrically independent from the plurality of metal films. The plurality of metal films may be electrically floating.Type: GrantFiled: June 8, 2017Date of Patent: December 22, 2020Assignee: Japan Display Inc.Inventors: Shuji Hayashi, Hayato Kurasawa, Takayuki Nakanishi, Mitsuhide Miyamoto, Hiroshi Mizuhashi, Yoshitoshi Kida
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Publication number: 20200387251Abstract: A display device with an input function is provided with a display panel, a touch sensor arranged overlapping the display panel, and an electromagnetic shield arranged overlapping the display panel, the display panel, the touch sensor, and the electromagnetic shield have flexibility, the display panel includes a substrate having flexibility, a functional circuit layer arranged on the first surface of the substrate, and a display element layer provided in a location facing the first surface via the functional circuit layer, the touch sensor includes a plurality of electrostatic capacitance type sensor electrodes arranged in a location facing the functional circuit layer via the display element layer, the electromagnetic shield is arranged in a location further outside than the touch sensor from the rolled axis or the folded axis of the substrate when the functional circuit layer and the display element layer are rolled or folded inward.Type: ApplicationFiled: August 26, 2020Publication date: December 10, 2020Inventor: Takayuki NAKANISHI
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Publication number: 20200377748Abstract: An ink composition comprising one or two or more kinds of rare-earth complexes containing trivalent rare-earth ions and at least one organic ligand selected from a ?-diketone ligand, a carboxylic acid ligand, a phosphine oxide ligand and a nitrogen-containing aromatic heterocyclic ligand, wherein at least one selected from the following group A and at least one selected from the following group B are contained as the trivalent rare-earth ions contained in the one or two or more kinds of rare-earth complexes: Group A: Eu3+, Sm3+, Pr3+ and Ho3+; and Group B: Tb3+, Er3+, Tm3+, Dy3+, Yb3+, Nd3+, Ce3+ and Gd3+.Type: ApplicationFiled: June 1, 2018Publication date: December 3, 2020Inventors: Yuko Aoyama, Jun Sato, Fumiyasu Murakami, Masato Okada, Toshio Yoshihara, Yasuchika Hasegawa, Takayuki Nakanishi
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Patent number: 10824263Abstract: 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.Type: GrantFiled: April 26, 2018Date of Patent: November 3, 2020Assignee: Japan Display Inc.Inventors: Takayuki Nakanishi, Naoki Takada, Shota Hosaka
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Patent number: 10817108Abstract: 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.Type: GrantFiled: March 7, 2019Date of Patent: October 27, 2020Assignee: JAPAN DISPLAY INC.Inventors: Takayuki Nakanishi, Koji Noguchi, Koji Ishizaki, Yasuyuki Teranishi, Takeya Takeuchi
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Patent number: 10795520Abstract: A display device with an input function is provided with a display panel, a touch sensor arranged overlapping the display panel, and an electromagnetic shield arranged overlapping the display panel, the display panel, the touch sensor, and the electromagnetic shield have flexibility, the display panel includes a substrate having flexibility, a functional circuit layer arranged on the first surface of the substrate, and a display element layer provided in a location facing the first surface via the functional circuit layer, the touch sensor includes a plurality of electrostatic capacitance type sensor electrodes arranged in a location facing the functional circuit layer via the display element layer, the electromagnetic shield is arranged in a location further outside than the touch sensor from the rolled axis or the folded axis of the substrate when the functional circuit layer and the display element layer are rolled or folded inward.Type: GrantFiled: February 21, 2019Date of Patent: October 6, 2020Assignee: Japan Display Inc.Inventor: Takayuki Nakanishi
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Patent number: 10788720Abstract: According to one embodiment, a display device includes a display panel including a reflective layer, a liquid crystal element opposing the display panel and a controller that controls the liquid crystal element. The liquid crystal element includes a first substrate, a second substrate, a liquid crystal layer, a first control electrode, a second control electrode, a third control electrode, and a fourth control electrode. The controller applies a first voltage for forming a first lens of a first shape, to the first control electrode and the second control electrode, and a second voltage for forming a second lens of a second shape, to the third control electrode and the fourth control electrode. The first shape is different from the second shape.Type: GrantFiled: May 10, 2018Date of Patent: September 29, 2020Assignee: Japan Display Inc.Inventors: Tatsuya Yata, Takayuki Nakanishi, Takeo Koito
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Publication number: 20200285333Abstract: 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.Type: ApplicationFiled: May 22, 2020Publication date: September 10, 2020Applicant: Japan Display Inc.Inventors: Takayuki NAKANISHI, Naoki TAKADA, Fumitaka GOTOH, Shota HOSAKA
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Patent number: 10745614Abstract: Disclosed is a rare-earth complex polymer including trivalent rare-earth ions and a phosphine oxide bidentate ligand represented by the formula (1). One phosphine oxide bidentate ligand is coordinated to the two rare-earth ions, and crosslinks the same.Type: GrantFiled: April 26, 2017Date of Patent: August 18, 2020Assignee: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Takayuki Nakanishi, Yuichi Hirai, Yasuchika Hasegawa, Yuichi Kitagawa, Koji Fushimi
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Publication number: 20200249837Abstract: A display device is provided and includes first and second substrates; first and second electrodes, the first electrode having a rectangular shape; the second electrode provided to the second substrate at a position closer to a display surface than the first electrode in a direction perpendicular to the first substrate; a drive circuit configured to supply first or second drive signals to the second electrode; and a control circuit having a first detection mode for detecting an object to be detected in contact with the display surface based on a first detection signal corresponding to change in mutual capacitance between first and second electrodes when the first drive signal is supplied to the second electrode, and a second detection mode for detecting the object to be detected not in contact with the display surface based on a second detection signal corresponding to change in self-capacitance in the second electrode when the second drive signal is supplied to the second electrode, wherein first and secondType: ApplicationFiled: April 24, 2020Publication date: August 6, 2020Inventors: Koji NOGUCHI, Takayuki NAKANISHI
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Patent number: 10705637Abstract: 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 arrayed in a second direction intersecting the first direction; and a plurality of second electrodes arrayed in at least the first direction in a layer different from a layer of the first electrodes. Each of the second electrodes partially overlaps with the first electrodes in planar view and has an electric-field transmission region, in which an electric field can pass through each of the second electrodes in a direction perpendicular to the substrate. The electric-field transmission region in each of the second electrodes overlaps with one of the first electrodes in planar view.Type: GrantFiled: September 24, 2018Date of Patent: July 7, 2020Assignee: Japan Display Inc.Inventors: Takayuki Nakanishi, Naoki Takada
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Patent number: 10698543Abstract: 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.Type: GrantFiled: October 24, 2018Date of Patent: June 30, 2020Assignee: Japan Display Inc.Inventors: Takayuki Nakanishi, Naoki Takada, Fumitaka Gotoh, Shota Hosaka
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Patent number: 10672364Abstract: An image display device includes an image display unit including first pixels each constituted of sub-pixels of three or more colors included in a first color gamut and second pixels each constituted of sub-pixels of three or more colors included in a second color gamut different from the first color gamut, the first pixels and the second pixels being arranged in a matrix and adjacent to each other; and a processing unit that determines an output of the sub-pixels included in each pixel of the image display unit corresponding to an input image signal. The processing unit determines an output of the sub-pixels included in the other one of the pixels based on part of components of an input image signal corresponding to one of the first pixel and the second pixel that are adjacent to each other.Type: GrantFiled: December 21, 2018Date of Patent: June 2, 2020Assignee: Japan Display Inc.Inventors: Takayuki Nakanishi, Tatsuya Yata
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Publication number: 20200166821Abstract: According to one embodiment, a photodetector includes a sensor unit including at least one photosensor, a liquid crystal element including a first substrate includes a plurality of first control electrodes, a second substrate including a second control electrode, and a liquid crystal layer held between the first substrate and the second substrate, a liquid crystal controller which controls a voltage to be applied to the liquid crystal layer for forming a first lens that is opposed to the photosensor in the liquid crystal layer, and a sensor controller which controls the sensor.Type: ApplicationFiled: January 28, 2020Publication date: May 28, 2020Applicant: Japan Display Inc.Inventors: Takayuki NAKANISHI, Tatsuya YATA, Takeo KOITO
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Patent number: 10664114Abstract: 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.Type: GrantFiled: September 27, 2018Date of Patent: May 26, 2020Assignee: Japan Display Inc.Inventors: Naoki Takada, Takayuki Nakanishi
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Publication number: 20200150810Abstract: A display device comprises a first power supply line supplying a first potential, a second power supply line supplying a second potential, a third power supply line supplying a touch driving signal, and a display unit including a plurality of sub-pixels. The display unit comprises a plurality of first electrodes respectively provided in the plurality of sub-pixels and electrically connected to the first power supply line, a second electrode provided to be common among the plurality of sub-pixels and electrically connected to the second power supply line, a light emitting layer provided between the first electrode and the second electrode, a plurality of third electrodes electrically connected to the third power supply line, and a signal control circuit supplying a signal synchronized with a touch driving signal to the second electrode in a period in which a touch driving signal is supplied to the plurality of third electrodes.Type: ApplicationFiled: January 14, 2020Publication date: May 14, 2020Inventors: Hiroshi Mizuhashi, Hayato Kurasawa, Yoshitoshi Kida, Toshinori Uehara, Takayuki Nakanishi
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Patent number: 10635234Abstract: A display device includes a first substrate, a second substrate, a first electrode, a second electrode, a drive circuit, and a control circuit. The second substrate faces the first substrate. The first electrode is provided in a display region of the first substrate. The second electrode is provided to the second substrate at a position closer to a display surface than the first electrode in a direction perpendicular to the first substrate. The drive circuit supplies a first drive signal or a second drive signal to the second electrode. The control circuit has a first detection mode and a second detection mode.Type: GrantFiled: April 16, 2018Date of Patent: April 28, 2020Assignee: Japan Display Inc.Inventors: Koji Noguchi, Takayuki Nakanishi
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Patent number: 10635250Abstract: An input device includes a first substrate, a first light-emitting element unit, and a third electrode unit. The first substrate has a first surface and a second surface. The first light-emitting element includes a first electrode unit formed on the second surface, a second electrode unit formed in a layer different from that of the first electrode unit, and a luminescent layer electrically in contact with at least a part of the first electrode unit and a part of the second electrode unit, and formed between the first electrode unit and the second electrode unit. The third electrode unit is insulated from the first electrode unit and detects a change in an electric field between the first electrode unit and the third electrode unit depending on coordinates of a proximity object present at a position overlapping with the first surface in planar view.Type: GrantFiled: July 25, 2018Date of Patent: April 28, 2020Assignee: Japan Display Inc.Inventors: Takayuki Nakanishi, Masaya Tamaki, Tatsuya Yata
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Patent number: 10591644Abstract: An optical laminate includes a translucent substrate, and at least one optical functional layer provided on the translucent substrate. The optical functional layer has a concave-convex shape on at least one surface. The optical functional layer contains two types of inorganic fine particles, and resin particles. The optical laminate has an internal haze X and a total haze Y satisfying (1) Y>X, (2) Y?X+25, (3) Y?50, and (4) 7?X?25. The optical laminate has a transmitted image clarity of 15% to 55% as measured using a 0.5-mm width optical comb. The number of projections having a height of not smaller than 0.1 ?m is not less than 900 per mm2 of measurement area in the concave-convex shape as measured by optical interferometry at an outermost surface of the optical functional layer.Type: GrantFiled: August 8, 2018Date of Patent: March 17, 2020Assignee: TOPPAN TOMOEGAWA OPTICAL FILMS CO., LTD.Inventors: Naoki Serizawa, Takayuki Nakanishi