Patents by Inventor Kouji Noguchi
Kouji Noguchi 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: 20170177157Abstract: A display device includes: a display functional layer that can change display for each pixel in accordance with an application voltage; a plurality of driving electrodes separately disposed in one direction; a plurality of pixel signal lines to which pixel signals used for applying the application voltage to the display functional layer in accordance with an electric potential difference from the display reference electric potential are applied; a plurality of detection electrodes that are separately disposed in a direction other than the one direction, are coupled with the driving electrodes as electrostatic capacitance, generate detection electric potentials in response to the detection driving signal, and change the detection electric potential in accordance with approach of a detection target object; and a pixel signal control unit that controls the pixel signals so as to include pixel signals having different polarities during the display period.Type: ApplicationFiled: March 7, 2017Publication date: June 22, 2017Inventors: Koji Ishizaki, Kouji Noguchi, Takayuki Nakanishi, Yasuyuki Teranishi, Takeya Takeuchi
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Patent number: 9626037Abstract: A display device includes: a display functional layer that can change display for each pixel in accordance with an application voltage; a plurality of driving electrodes separately disposed in one direction; a plurality of pixel signal lines to which pixel signals used for applying the application voltage to the display functional layer in accordance with an electric potential difference from the display reference electric potential are applied; a plurality of detection electrodes that are separately disposed in a direction other than the one direction, are coupled with the driving electrodes as electrostatic capacitance, generate detection electric potentials in response to the detection driving signal, and change the detection electric potential in accordance with approach of a detection target object; and a pixel signal control unit that controls the pixel signals so as to include pixel signals having different polarities during the display period.Type: GrantFiled: June 17, 2015Date of Patent: April 18, 2017Assignee: Japan Display Inc.Inventors: Koji Ishizaki, Kouji Noguchi, Takayuki Nakanishi, Yasuyuki Teranishi, Takeya Takeuchi
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Patent number: 9606667Abstract: A capacitance-type touch panel, allowing disturbance noise and touch detection time to be reduced and having a simple configuration, is provided. The capacitance-type touch panel including: a plurality of drive electrodes each having a strip shape; a drive control circuit performing control such that a drive signal for touch detection is selectively applied to the drive electrodes; a plurality of touch detection electrodes arranged to intersect with the drive electrodes in such a manner that capacitance is formed in each intersecting part, and each outputting a detection signal in synchronization with the drive signal; and a detection circuit detecting an external proximity object based on the detection signal. The drive control circuit controls application of the drive signal in such a manner that the detection signal is a polarity-alternating signal including a positive-negative asymmetrical signal component which is due to presence of the external proximity object.Type: GrantFiled: May 1, 2015Date of Patent: March 28, 2017Assignee: Japan Display Inc.Inventors: Kouji Noguchi, Tsutomu Harada, Yoshitoshi Kida, Takayuki Nakanishi, Koji Ishizaki, Takeya Takeuchi
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Patent number: 9459718Abstract: Disclosed herein is a display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.Type: GrantFiled: February 17, 2010Date of Patent: October 4, 2016Assignee: JAPAN DISPLAY INC.Inventors: Koji Ishizaki, Kouji Noguchi
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Publication number: 20160154520Abstract: A touch detection device includes: a detection surface; a plurality of sensor lines formed from a plurality of types of wiring lines having a different line capacitance; and a touch detection unit which detects an electric variation generated in a plurality of the sensor lines in response to touch or proximity of a detection target object to the detection surface, wherein the touch detection unit has an operational circuit for generating a detection signal representing the electric variation by performing an operation process using a line capacitance ratio for a plurality of outputs from a plurality of types of the sensor lines neighboring to one another with a different line capacitance.Type: ApplicationFiled: January 21, 2016Publication date: June 2, 2016Inventors: Koji ISHIZAKI, Kouji NOGUCHI, Takeya TAKEUCHI, Takayuki NAKANISHI, Yasuyuki TERANISHI
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Publication number: 20160139725Abstract: A capacitance-type touch panel, allowing disturbance noise and touch detection time to be reduced and having a simple configuration, is provided. The capacitance-type touch panel including: a plurality of drive electrodes each having a strip shape; a drive control circuit performing control such that a drive signal for touch detection is selectively applied to the drive electrodes; a plurality of touch detection electrodes arranged to intersect with the drive electrodes in such a manner that capacitance is formed in each intersecting part, and each outputting a detection signal in synchronization with the drive signal; and a detection circuit detecting an external proximity object based on the detection signal. The drive control circuit controls application of the drive signal in such a manner that the detection signal is a polarity-alternating signal including a positive-negative asymmetrical signal component which is due to presence of the external proximity object.Type: ApplicationFiled: May 1, 2015Publication date: May 19, 2016Inventors: Kouji NOGUCHI, Tsutomu HARADA, Yoshitoshi KIDA, Takayuki NAKANISHI, Koji ISHIZAKI, Takeya TAKEUCHI
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Patent number: 9298294Abstract: A display apparatus includes: a display face; a display function layer adapted to vary display on the display face in response to an inputted image signal; a plurality of driving electrodes disposed separately in one direction; a detection scanning control section configured to apply a detection driving voltage to some of the plural driving electrodes and carry out detection driving scanning while shifting an application object of the detection driving voltage in the one direction on the display face and then control the detection driving scanning such that jump shift of carrying out shift with a pitch of twice or more times a driving electrode pitch is included; and a plurality of sensor lines disposed separately in a direction different from the one direction and responding to touch or proximity of a detection object with or to the display face to exhibit an electric variation.Type: GrantFiled: May 7, 2010Date of Patent: March 29, 2016Assignee: Japan Display, Inc.Inventors: Takeya Takeuchi, Kouji Noguchi, Koji Ishizaki, Yasuyuki Teranishi, Takayuki Nakanishi
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Patent number: 9274653Abstract: A touch detection device includes: a detection surface; a plurality of sensor lines formed from a plurality of types of wiring lines having a different line capacitance; and a touch detection unit which detects an electric variation generated in a plurality of the sensor lines in response to touch or proximity of a detection target object to the detection surface, wherein the touch detection unit has an operational circuit for generating a detection signal representing the electric variation by performing an operation process using a line capacitance ratio for a plurality of outputs from a plurality of types of the sensor lines neighboring to one another with a different line capacitance.Type: GrantFiled: June 1, 2010Date of Patent: March 1, 2016Assignee: Japan Display, Inc.Inventors: Koji Ishizaki, Kouji Noguchi, Takeya Takeuchi, Takayuki Nakanishi, Yasuyuki Teranishi
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Publication number: 20160020604Abstract: A current-limiting and power-flow control device according to the present invention includes a superconducting current-limiting element including a superconductor, a series capacitor, and a parallel circuit. The series capacitor is connected in series with the superconducting current-limiting element. The parallel circuit includes a reactor connected in parallel with a series circuit including the superconducting current-limiting element and the series capacitor. Accordingly, overcurrent at the time of occurrence of a fault causes transition of the superconductor of the superconducting current-limiting element to the normal conducting state, and thus causes autonomous current-limiting operation of the superconducting current-limiting element. Thus, application of an excessive load across the terminals of the series capacitor due to the aforementioned fault can surely be prevented.Type: ApplicationFiled: March 26, 2014Publication date: January 21, 2016Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeki ISOJIMA, Shuichi NOGAWA, Kouji NOGUCHI, Kazuhiro KURODA
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Publication number: 20160013635Abstract: A current-limiting device is a current-limiting device that uses a superconductor to perform a current-limiting operation, the current-limiting device including: a superconducting current-limiting element including the superconductor; a capacitor; a reactor; and a bypass switch. The series capacitor is connected in series to the superconducting current-limiting element. The current-limiting reactor is further connected in series to a series circuit including the superconducting current-limiting element and the series capacitor. The thyristor switch is connected in parallel to the series circuit.Type: ApplicationFiled: March 26, 2014Publication date: January 14, 2016Inventors: Shigeki ISOJIMA, Shuichi NOGAWA, Kouji NOGUCHI, Kazuhiro KURODA
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Patent number: 9170451Abstract: An image display apparatus including an image display panel that includes: a first color filter for passing light of a first primary and first auxiliary pixels for displaying the first primary; a second color filter for passing light of a second primary and second auxiliary pixels for displaying the second primary; a third color filter for passing light of a third primary and third auxiliary pixels for displaying the third primary; and fourth auxiliary pixels for displaying a fourth color; the first auxiliary pixels, the second auxiliary pixels, the third auxiliary pixels, and the fourth auxiliary pixels being arranged in a two-dimensional matrix, and a light shielding region disposed at least partly around the peripheral edge of each of the fourth auxiliary pixels.Type: GrantFiled: July 24, 2014Date of Patent: October 27, 2015Assignee: JAPAN DISPLAY INC.Inventors: Yasuyuki Matsui, Masaaki Kabe, Akira Sakaigawa, Kouji Noguchi, Kenta Seki
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Publication number: 20150286337Abstract: A display device includes: a display functional layer that can change display for each pixel in accordance with an application voltage; a plurality of driving electrodes separately disposed in one direction; a plurality of pixel signal lines to which pixel signals used for applying the application voltage to the display functional layer in accordance with an electric potential difference from the display reference electric potential are applied; a plurality of detection electrodes that are separately disposed in a direction other than the one direction, are coupled with the driving electrodes as electrostatic capacitance, generate detection electric potentials in response to the detection driving signal, and change the detection electric potential in accordance with approach of a detection target object; and a pixel signal control unit that controls the pixel signals so as to include pixel signals having different polarities during the display period.Type: ApplicationFiled: June 17, 2015Publication date: October 8, 2015Inventors: Koji Ishizaki, Kouji Noguchi, Takayuki Nakanishi, Yasuyuki Teranishi, Takeya Takeuchi
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Patent number: 9140922Abstract: The display device with high detection accuracy includes: display pixel electrodes; a common electrode; a display function layer; a display control circuit performing image display control by applying a pixel voltage to each of the display pixel electrodes and applying a common drive voltage to the common electrode, the common drive voltage inverting in synchronization with a drive cycle of the image display control; a touch detection electrode cooperating with the common electrode to form a capacitor; and a touch detection circuit detecting an external proximity object, based on a detection signal obtained from the touch detection electrode in response to the common drive voltage applied to the common electrode. The touch detection circuit performs the detection operation in a inversion period following an inversion timing of the common drive voltage, based on both first and second detection signals obtained before and after the inversion timing, respectively.Type: GrantFiled: April 30, 2010Date of Patent: September 22, 2015Assignee: Japan Display, Inc.Inventors: Kouji Noguchi, Koji Ishizaki, Takayuki Nakanishi, Takeya Takeuchi, Yasuyuki Teranishi
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Patent number: 9092087Abstract: A display device includes: a display functional layer that can change display for each pixel in accordance with an application voltage; a plurality of driving electrodes separately disposed in one direction; a plurality of pixel signal lines to which pixel signals used for applying the application voltage to the display functional layer in accordance with an electric potential difference from the display reference electric potential are applied; a plurality of detection electrodes that are separately disposed in a direction other than the one direction, are coupled with the driving electrodes as electrostatic capacitance, generate detection electric potentials in response to the detection driving signal, and change the detection electric potential in accordance with approach of a detection target object; and a pixel signal control unit that controls the pixel signals so as to include pixel signals having different polarities during the display period.Type: GrantFiled: June 22, 2010Date of Patent: July 28, 2015Assignee: Japan Display Inc.Inventors: Koji Ishizaki, Kouji Noguchi, Takayuki Nakanishi, Yasuyuki Teranishi, Takeya Takeuchi
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Publication number: 20150199051Abstract: The display device with high detection accuracy includes: display pixel electrodes; a common electrode; a display function layer; a display control circuit performing image display control by applying a pixel voltage to each of the display pixel electrodes and applying a common drive voltage to the common electrode, the common drive voltage inverting in synchronization with a drive cycle of the image display control; a touch detection electrode cooperating with the common electrode to form a capacitor; and a touch detection circuit detecting an external proximity object, based on a detection signal obtained from the touch detection electrode in response to the common drive voltage applied to the common electrode. The touch detection circuit corrects the detection signal based on a gray scale of the image signal at the time of acquisition of the detection signal, and performs the detection operation.Type: ApplicationFiled: January 27, 2015Publication date: July 16, 2015Inventors: Kouji NOGUCHI, Takayuki NAKANISHI, Koji ISHIZAKI, Takeya TAKEUCHI, Yasuyuki TERANISHI
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Patent number: 9046968Abstract: A capacitance-type touch panel, allowing disturbance noise and touch detection time to be reduced and having a simple configuration, is provided. The capacitance-type touch panel including: a plurality of drive electrodes each having a strip shape; a drive control circuit performing control such that a drive signal for touch detection is selectively applied to the drive electrodes; a plurality of touch detection electrodes arranged to intersect with the drive electrodes in such a manner that capacitance is formed in each intersecting part, and each outputting a detection signal in synchronization with the drive signal; and a detection circuit detecting an external proximity object based on the detection signal. The drive control circuit controls application of the drive signal in such a manner that the detection signal is a polarity-alternating signal including a positive-negative asymmetrical signal component which is due to presence of the external proximity object.Type: GrantFiled: June 4, 2010Date of Patent: June 2, 2015Assignee: Japan Display, Inc.Inventors: Kouji Noguchi, Tsutomu Harada, Yoshitoshi Kida, Takayuki Nakanishi, Koji Ishizaki, Takeya Takeuchi
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Patent number: 9013642Abstract: A display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.Type: GrantFiled: June 14, 2013Date of Patent: April 21, 2015Assignee: Japan Display Inc.Inventors: Koji Ishizaki, Kouji Noguchi
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Patent number: 9013415Abstract: An information input device includes a touch panel which is provided with a touch sensor capable of sensing a position in which a sensing target body is close to a sensing surface thereof. The touch sensor includes a scanning electrode and a detection electrode which faces and is spaced from the scanning electrode with a dielectric body being interposed therebetween, the touch sensor being configured so that electrostatic capacitance which is formed between the scanning electrode and the detection electrode is varied when the sensing target body is close to the detection electrode. The detection electrode is formed with a slit in a surface thereof which faces the scanning electrode, and a floating electrode is installed in the slit.Type: GrantFiled: June 8, 2010Date of Patent: April 21, 2015Assignee: Japan Display Inc.Inventors: Yasuyuki Teranishi, Kouji Noguchi, Koji Ishizaki, Takayuki Nakanishi, Takeya Takeuchi
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Publication number: 20150103276Abstract: Disclosed herein is a display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.Type: ApplicationFiled: December 18, 2014Publication date: April 16, 2015Inventors: Koji Ishizaki, Kouji Noguchi
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Publication number: 20150103277Abstract: Disclosed herein is a display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.Type: ApplicationFiled: December 18, 2014Publication date: April 16, 2015Inventors: Koji Ishizaki, Kouji Noguchi