Patents by Inventor Toshiaki Fukushima
Toshiaki Fukushima 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: 20180327922Abstract: Provided are a technique with which a satin-like appearance can be obtained in nickel-plating by a nickel-plating additive characterized by containing a benzethonium salt, a satin nickel-plating bath containing the same, and a satin nickel-plating method using the same.Type: ApplicationFiled: November 6, 2015Publication date: November 15, 2018Applicant: JCU CORPORATIONInventors: Kazuo IBATA, Kaori NAKAYAMA, Kana SHIBATA, Toshiaki FUKUSHIMA, Shinsuke TAKAGI
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Publication number: 20180292937Abstract: According to one embodiment, a display device includes first and second substrate units, a display function layer, and a drive element. The first substrate unit includes a first substrate, a display unit, and a control circuit unit. The first substrate has a first surface including a display region and a peripheral region. The display unit is provided in the display region, and includes first lines, second lines, switch elements, pixel electrodes, and third lines. The control circuit unit is provided in the peripheral region, and includes a first circuit unit including a third line connection line, and a third line switch. The second substrate unit includes a second substrate and fourth lines. The display function layer is provided between the first and second substrate units. The drive element is provided on the peripheral region. The first circuit unit is partially disposed between the drive element and the first substrate.Type: ApplicationFiled: June 12, 2018Publication date: October 11, 2018Applicant: Japan Display Inc.Inventors: Hiroshi MIZUHASHI, Toshiaki FUKUSHIMA, Gen KOIDE, Yoshiyuki KII
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Publication number: 20180246471Abstract: Provided is a drive circuit for a two-coil stepper motor, including: a rotor; a stator including first, second, and third stator magnetic-pole portions; a coil A to be magnetically coupled to the first stator magnetic-pole portion and the third stator magnetic-pole portion; a coil B to be magnetically coupled to the second stator magnetic-pole portion and the third stator magnetic-pole portion; a drive pulse generation circuit configured to output a drive pulse; a detection pulse generation circuit configured to output a detection pulse for detecting counter-electromotive currents generated in the coil A and the coil B; and a rotation detection circuit configured to receive a detection signal generated due to the detection pulse as input to determine whether or not the rotor has rotated.Type: ApplicationFiled: September 9, 2016Publication date: August 30, 2018Inventors: Yu TAKYOH, Toshiaki FUKUSHIMA, Toshinari MAEDA, Daisuke IRI, Daisuke MATSUOH
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Patent number: 10019095Abstract: According to one embodiment, a display device includes first and second substrate units, a display function layer, and a drive element. The first substrate unit includes a first substrate, a display unit, and a control circuit unit. The first substrate has a first surface including a display region and a peripheral region. The display unit is provided in the display region, and includes first lines, second lines, switch elements, pixel electrodes, and third lines. The control circuit unit is provided in the peripheral region, and includes a first circuit unit including a third line connection line, and a third line switch. The second substrate unit includes a second substrate and fourth lines. The display function layer is provided between the first and second substrate units. The drive element is provided on the peripheral region. The first circuit unit is partially disposed between the drive element and the first substrate.Type: GrantFiled: September 13, 2017Date of Patent: July 10, 2018Assignee: Japan Display Inc.Inventors: Hiroshi Mizuhashi, Toshiaki Fukushima, Gen Koide, Yoshiyuki Kii
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Patent number: 10019961Abstract: A display device includes an image display panel and a control device. The image display panel includes first sub-pixels, second sub-pixels, third sub-pixels, and fourth sub-pixels in which a specified sub-pixel column including the third sub-pixels and the fourth sub-pixels and at least one other sub-pixel column arranged next to the specified sub-pixel column are periodically arranged. The control device performs column inversion driving to apply a voltage having the same polarity to signal lines of a first specified sub-pixel column belonging to the specified sub-pixel columns and the other sub-pixel column adjacent to the first specified sub-pixel column, apply a voltage having the same polarity as the first specified sub-pixel column to one of the signal lines of a second specified sub-pixel column and a third specified sub-pixel column adjacent to the first specified sub-pixel column, and invert the polarities of the voltages to be applied at predetermined cycles.Type: GrantFiled: May 19, 2015Date of Patent: July 10, 2018Assignee: Japan Display Inc.Inventors: Masaaki Kabe, Hiroki Uchiyama, Toshiaki Fukushima, Gen Koide
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Publication number: 20180164947Abstract: To provide a liquid crystal display device with a touch detection function in which any drive method can be adopted.Type: ApplicationFiled: January 30, 2018Publication date: June 14, 2018Inventors: Hiroshi Mizuhashi, Koji Noguchi, Toshiaki Fukushima
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Publication number: 20180120653Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first line, a second line, a switching element, a common electrode, an insulating film disposed on the common electrode, a pixel electrode connected with the switching element and opposed to the common electrode with the insulating film interposed therebetween, and a first alignment film covering the pixel electrode. The second substrate includes a second alignment film. And the pixel electrode includes one main pixel electrode extending in a belt shape in a pixel area defined by the first line and the second line.Type: ApplicationFiled: December 29, 2017Publication date: May 3, 2018Applicant: Japan Display Inc.Inventors: Seiji Uejima, Hidemasa Yamaguchi, Yoshitaka Ozeki, Takeyuki Tsuruma, Kenta Seki, Toshiaki Fukushima
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Patent number: 9916033Abstract: To provide a liquid crystal display device with a touch detection function in which any drive method can be adopted.Type: GrantFiled: February 1, 2017Date of Patent: March 13, 2018Assignee: Japan Display Inc.Inventors: Hiroshi Mizuhashi, Koji Noguchi, Toshiaki Fukushima
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Publication number: 20180067585Abstract: According to an aspect, a display device with a touch detection function includes a controller, touch wiring that supplies a touch drive signal to drive electrodes, and a plurality of switch groups that are provided for each of the drive electrodes, each of the plurality of switch groups having selection switches. The plurality of switch groups select a drive electrode to be coupled to a touch wiring based on a selection signal from the controller. The selection switches for each of the plurality of switch groups are coupled in parallel with each other between a corresponding drive electrode and the touch wiring, and for each of the drive electrodes, all of the selection switches operate in accordance with the selection signal, couple the corresponding drive electrodes and the touch wiring, and apply the touch drive signal to the corresponding drive electrodes.Type: ApplicationFiled: November 8, 2017Publication date: March 8, 2018Inventor: Toshiaki FUKUSHIMA
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Publication number: 20180059859Abstract: According to an aspect, a display apparatus includes: a plurality of gate lines; a plurality of first wires arranged in a frame region surrounding a display region and each configured to supply a detection drive signal to the respective gate lines in a detection operation period and be supplied with a first signal having a predetermined first voltage in a display operation period different from the detection operation period; and a shield that is a conductive member overlapping at least one of the first wires when viewed in a direction perpendicular to the display region and is supplied with a second signal having a predetermined second voltage in the display operation period.Type: ApplicationFiled: August 22, 2017Publication date: March 1, 2018Inventor: Toshiaki FUKUSHIMA
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Publication number: 20180059871Abstract: According to an aspect, a display apparatus includes: a plurality of gate lines; a plurality of first switches arranged in respective pixels in a display region, each of the first switches being coupled to one of the gate lines; a plurality of second switches arranged in a frame region surrounding the display region, each of the second switches being coupled to one of the gate lines; and a first wire coupled to the respective second switches and supplying a detection drive signal to the respective gate lines through the respective second switches in a detection operation period. The first wire is arranged between the second switches and the display region.Type: ApplicationFiled: August 22, 2017Publication date: March 1, 2018Inventor: Toshiaki FUKUSHIMA
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Patent number: 9891479Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first line, a second line, a switching element, a common electrode, an insulating film disposed on the common electrode, a pixel electrode connected with the switching element and opposed to the common electrode with the insulating film interposed therebetween, and a first alignment film covering the pixel electrode. The second substrate includes a second alignment film. And the pixel electrode includes one main pixel electrode extending in a belt shape in a pixel area defined by the first line and the second line.Type: GrantFiled: January 22, 2015Date of Patent: February 13, 2018Assignee: Japan Display Inc.Inventors: Seiji Uejima, Hidemasa Yamaguchi, Yoshitaka Ozeki, Takeyuki Tsuruma, Kenta Seki, Toshiaki Fukushima
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Patent number: 9874771Abstract: According to one embodiment, a display device includes first, second, and third interconnects, switch elements, pixel electrodes, a display layer, and a controller. The switch elements are arranged in a matrix configuration, and connected to the first and second interconnects. The pixel electrodes are electrically connected to the switch elements. The third interconnects oppose the pixel electrodes. The display layer is provided on the pixel electrodes. The controller is electrically connected to the first, second, and third interconnects. The second interconnects include a first color interconnect. The controller performs a first operation of sequentially selecting the first interconnects and supplying a first color image signal to the first color interconnect. The controller performs a second operation of sequentially selecting the first interconnects and supplying a second color image signal to the first color interconnect.Type: GrantFiled: April 27, 2015Date of Patent: January 23, 2018Assignee: Japan Display Inc.Inventors: Hayato Kurasawa, Hiroshi Mizuhashi, Toshiaki Fukushima
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Publication number: 20180018926Abstract: To reduce the area of a portion where a plurality of transistors are provided in a region around a display region and to reduce the area of the region around the display region, a display device includes a first transistor and a second transistor each as a transistor, and the transistor includes a connection wiring that electrically connects a semiconductor film and a source-drain electrode to each other via an opening portion provided in an insulating film. The first transistor and the second transistor are adjacent to each other, and there is a clearance between an end portion, on the side of the second transistor, of the connection wiring in the first transistor and an end portion, on the side of the second transistor, of the opening portion in the first transistor.Type: ApplicationFiled: September 28, 2017Publication date: January 18, 2018Applicant: Japan Display Inc.Inventors: Gen KOIDE, Toshiaki FUKUSHIMA
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Publication number: 20180004331Abstract: According to one embodiment, a display device includes first and second substrate units, a display function layer, and a drive element. The first substrate unit includes a first substrate, a display unit, and a control circuit unit. The first substrate has a first surface including a display region and a peripheral region. The display unit is provided in the display region, and includes first lines, second lines, switch elements, pixel electrodes, and third lines. The control circuit unit is provided in the peripheral region, and includes a first circuit unit including a third line connection line, and a third line switch. The second substrate unit includes a second substrate and fourth lines. The display function layer is provided between the first and second substrate units. The drive element is provided on the peripheral region. The first circuit unit is partially disposed between the drive element and the first substrate.Type: ApplicationFiled: September 13, 2017Publication date: January 4, 2018Applicant: Japan Display Inc.Inventors: Hiroshi MIZUHASHI, Toshiaki FUKUSHIMA, Gen KOIDE, Yoshiyuki KII
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Publication number: 20170371447Abstract: According to an aspect, an array substrate includes: a substrate; a sensor electrode disposed on the substrate, and configured to detect change of capacitance; and a pull-out line capable of being electrically coupled with the sensor electrode, and pulled out to an end portion of the substrate.Type: ApplicationFiled: May 31, 2017Publication date: December 28, 2017Inventor: Toshiaki FUKUSHIMA
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Patent number: 9846322Abstract: According to one embodiment, a display device includes first, second, and third interconnects, switch elements, pixel electrodes, a display layer, and a controller. The switch elements are arranged in a matrix configuration, and connected to the first and second interconnects. The pixel electrodes are electrically connected to the switch elements. The third interconnects oppose the pixel electrodes. The display layer is provided on the pixel electrodes. The controller is electrically connected to the first, second, and third interconnects. The second interconnects include a first color interconnect. The controller performs a first operation of sequentially selecting the first interconnects and supplying a first color image signal to the first color interconnect. The controller performs a second operation of sequentially selecting the first interconnects and supplying a second color image signal to the first color interconnect.Type: GrantFiled: April 27, 2015Date of Patent: December 19, 2017Assignee: Japan Display Inc.Inventors: Hayato Kurasawa, Hiroshi Mizuhashi, Toshiaki Fukushima
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Publication number: 20170357216Abstract: Provided is a drive circuit for a two-coil stepper motor, including a rotor that is magnetized to an N-pole and an S-pole, first, second, and third stator magnetic-pole portions, a coil A, and a coil B. The drive circuit includes a drive pulse generation circuit configured to output a drive pulse (SP) for driving the coil A and the coil B, a detection pulse generation circuit configured to output a detection pulse (CP) to the coil A and the coil B in order to detect counter-electromotive currents generated in the coil A and the coil B along with a movement of the rotor after the rotor is driven based on the drive pulse, and a detection circuit configured to receive a detection signal (CS) generated based on the detection pulse as input, to thereby detect the movement of the rotor. At least one of the detection pulse to the coil A or the detection pulse to the coil B is output.Type: ApplicationFiled: December 24, 2015Publication date: December 14, 2017Inventors: Toshiaki FUKUSHIMA, Toshinari MAEDA, Yu TAKYOH, Daisuke IRI
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Publication number: 20170357355Abstract: According to one embodiment, a display device provided with a sensor, includes a plurality of electrodes for a touch sensor, which comprise a plurality of drive electrodes and a plurality of detection electrodes, and a display panel, wherein a plurality of common electrodes for display which are provided in the display panel are also applied as the drive electrodes, an image display operation of the display panel and a driving operation of the electrodes for the touch sensor are performed in a time sharing manner, and in the driving operation of the electrodes for the touch sensor, a code division multiplexing (CDM) drive is performed in units of successive common electrodes, and a drive signal which synchronizes with the CDM drive is input to all common electrodes other than successive common electrodes subjected to the CDM drive.Type: ApplicationFiled: July 31, 2017Publication date: December 14, 2017Applicant: Japan Display Inc.Inventors: Toshiaki FUKUSHIMA, Koji NOGUCHI, Hiroshi MIZUHASHI, Gen KOIDE, Tadayoshi KATSUTA
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Patent number: 9836168Abstract: According to an aspect, a display device with a touch detection function includes a controller, touch wiring that supplies a touch drive signal to drive electrodes, and a plurality of switch groups that are provided for each of the drive electrodes, each of the plurality of switch groups having selection switches. The plurality of switch groups select a drive electrode to be coupled to a touch wiring based on a selection signal from the controller. The selection switches for each of the plurality of switch groups are coupled in parallel with each other between a corresponding drive electrode and the touch wiring, and for each of the drive electrodes, all of the selection switches operate in accordance with the selection signal, couple the corresponding drive electrodes and the touch wiring, and apply the touch drive signal to the corresponding drive electrodes.Type: GrantFiled: January 10, 2014Date of Patent: December 5, 2017Assignee: Japan Display Inc.Inventor: Toshiaki Fukushima