Patents by Inventor Toshinori Uehara

Toshinori Uehara 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).

  • Publication number: 20200242318
    Abstract: A fingerprint sensor is provided and includes a substrate; sensor electrodes arranged in a matrix on the substrate; switches coupled to the sensor electrodes; a control line drive circuit; a signal line drive circuit; signal lines coupling the signal line drive circuit to the sensor electrodes through the switches; control lines transmitting a selection signal to the switches from the control line drive circuit; and a sensor drive electrode surrounding the matrix of the sensor electrodes, wherein a distance of the sensor drive electrode from a surface of the substrate is larger than a distance of the sensor electrodes from the surface of the substrate.
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Inventors: Fumihito SHIBANO, Hiroshi MIZUHASHI, Toshinori UEHARA, Kimiyo NONOYAMA, Hayato KURASAWA
  • Patent number: 10725576
    Abstract: Provided is a detection device which includes a detection electrode group including a plurality of first electrodes each of which is configured to detect a detection signal that changes according to touch or approach of an external object, an output signal line, and a selective coupling circuitry configured to couple first electrodes of a first detection target in the detection electrode group with the output signal line according to a first selection signal, output a first output signal obtained by integrating detection signals output from the selected first electrodes of the first detection target to the output signal line, couple first electrodes of a second detection target which are not included in the first detection target in the detection electrode group with the output signal line according to a second selection signal different from the first selection signal, and output a second output signal.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: July 28, 2020
    Assignee: Japan Display Inc.
    Inventor: Toshinori Uehara
  • Publication number: 20200226347
    Abstract: According to an aspect, a fingerprint detection device includes: a substrate; a plurality of drive electrodes provided on one surface side of the substrate and arranged in a first direction; and a plurality of detection electrodes provided on the one surface side and arranged in a second direction intersecting the first direction. The detection electrodes intersect the drive electrodes in a normal direction of the substrate. Each of the detection electrodes includes: a plurality of first line portions; a plurality of second line portions extending in a direction intersecting the first line portions; and a plurality of bent portions each connecting one of the first line portions and one of the second line portions adjacent to the one of the first line portions to each other.
    Type: Application
    Filed: March 26, 2020
    Publication date: July 16, 2020
    Inventors: Hayato KURASAWA, Yoshitaka OZEKI, Toshinori UEHARA, Yuji SUZUKI
  • Publication number: 20200226343
    Abstract: According to an aspect, a fingerprint detection device includes: a substrate; a plurality of drive electrodes provided on one surface side of the substrate and arranged in a first direction; a plurality of detection electrodes provided on the one surface side and arranged in a second direction intersecting the first direction; and an insulating layer provided in a normal direction of the substrate between each of the drive electrodes and the corresponding detection electrodes. The detection electrodes intersect the drive electrodes in the normal direction of the substrate. The detection electrodes include: a first metallic layer; and a second metallic layer positioned closer to the one surface than the first metallic layer to the one surface. The first metallic layer has a reflectance of visible light lower than that of the second metallic layer.
    Type: Application
    Filed: March 24, 2020
    Publication date: July 16, 2020
    Inventors: Hayato KURASAWA, Yoshitaka OZEKI, Toshinori UEHARA, Yuji SUZUKI
  • Publication number: 20200225805
    Abstract: Included are a first cover base including an alkali glass layer, a first alkali-free glass layer provided on one face of the alkali glass layer, and a second alkali-free glass layer provided on another face of the alkali glass layer and a sensor that is provided on the first alkali-free glass layer of the first cover base and includes a plurality of first electrodes configured to detect the unevenness of a surface of an object to be detected that comes into contact with or close to the first cover base and a switching element. At least the first electrodes are formed above the first alkali-free glass layer and in a transmissive area that passes an image.
    Type: Application
    Filed: March 24, 2020
    Publication date: July 16, 2020
    Inventors: Hayato Kurasawa, Shoji Hinata, Toshinori Uehara, Hiroshi Mizuhashi, Yuji Suzuki, Yasuhiro Kanaya
  • Patent number: 10713462
    Abstract: A fingerprint detection device includes: a substrate having a first surface and a second surface on an opposite side of the first surface, the first surface serving as a detection surface configured to detect unevenness of an object in contact or in proximity; a detection electrode provided on the second surface side of the substrate and configured to detect unevenness of a finger in contact or in proximity on the basis of an electrostatic capacitance change; and a drive circuit provided on the second surface side of the substrate and configured to supply a drive signal to the detection electrode.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: July 14, 2020
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Toshinori Uehara, Hiroshi Mizuhashi
  • Publication number: 20200201510
    Abstract: According to an aspect, a detection apparatus includes: a plurality of detection electrodes; a drive signal generation circuit configured to generate a drive signal; a detection circuit configured to be coupled to the detection electrodes to detect a detection signal based on the drive signal; and a first selection circuit. A first point in time when the drive signal makes a transition from a first potential to a second potential overlaps a first period in which the first selection circuit couples a detection electrode as a first selection target among the detection electrodes to the detection circuit. A second point in time when the drive signal makes a transition from the second potential to the first potential overlaps a second period in which the first selection circuit couples a detection electrode as a second selection target, which is not included in the first selection target, to the detection circuit.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 25, 2020
    Inventors: Hayato KURASAWA, Toshinori UEHARA
  • Publication number: 20200174621
    Abstract: According to an aspect, a detection apparatus includes: a detection electrode block including detection electrodes arranged in a first direction; a detection circuit configured to be coupled to the detection electrodes to detect detection signals; and a coupling circuit. The coupling circuit has a first mode of coupling the detection electrodes to the detection circuit by r coupling patterns corresponding to a first row to an r-th row of a Walsh Hadamard matrix in a first period, and a second mode of coupling the detection electrodes to the detection circuit by n coupling patterns (n>r) corresponding to the first row to an n-th row of the Hadamard matrix in a second period longer than the first period. The coupling circuit does not couple the detection electrodes to the detection circuit by a coupling pattern corresponding to an (r+1)-th row of the Hadamard matrix in the first mode.
    Type: Application
    Filed: November 25, 2019
    Publication date: June 4, 2020
    Inventor: Toshinori UEHARA
  • Publication number: 20200175242
    Abstract: A detection apparatus includes: a plurality of detection electrodes; a detection circuit configured to be coupled to the detection electrodes; and a coupling circuit configured to cause the detection electrodes to be a coupled state in which the detection electrodes are coupled to the detection circuit and a non-coupled state in which the detection electrodes are uncoupled from the detection circuit. The detection apparatus has a plurality of selection patterns of the detection electrodes causing detection electrodes as first selection targets among the detection electrodes to be the coupled state and causing detection electrodes as second selection targets to be the non-coupled state. The selection patterns do not include any selection patterns causing detection electrodes as the first selection targets to be the non-coupled state and causing detection electrodes as the second selection targets to be the coupled state.
    Type: Application
    Filed: November 25, 2019
    Publication date: June 4, 2020
    Inventor: Toshinori UEHARA
  • Patent number: 10664096
    Abstract: A detection apparatus includes a substrate, a plurality of first electrodes provided on the substrate, a first selection circuit provided on the substrate, the first selection circuit including a plurality of first input terminals that receive a first control signal supplied from an outside and a plurality of first output terminals that output a first selection signal based on the first control signal, and a second selection circuit provided on the substrate, the second selection circuit including a plurality of second input terminals that receive a second control signal supplied from the outside and a plurality of second output terminals that output a second selection signal based on the second control signal.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: May 26, 2020
    Assignee: Japan Display Inc.
    Inventors: Toshinori Uehara, Hayato Kurasawa
  • Publication number: 20200150810
    Abstract: 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: Application
    Filed: January 14, 2020
    Publication date: May 14, 2020
    Inventors: Hiroshi Mizuhashi, Hayato Kurasawa, Yoshitoshi Kida, Toshinori Uehara, Takayuki Nakanishi
  • Patent number: 10649582
    Abstract: A detection apparatus includes a first substrate, a first electrode, a plurality of second electrodes, a detection controller, and a second electrode controller. The first electrode is disposed on the first substrate. The second electrodes have an area smaller than the area of the first electrode and overlap the first electrode. The detection controller is coupled to the first electrode and detects a detection signal corresponding to a capacitance change in the first electrode. The second electrode controller supplies, to some of second electrodes in the second electrodes, a guard signal for suppressing a capacitance change in overlapping areas of the first electrode overlapping the respective second electrodes.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: May 12, 2020
    Assignee: Japan Display Inc.
    Inventors: Toshinori Uehara, Hayato Kurasawa
  • Patent number: 10635238
    Abstract: Included are a first cover base including an alkali glass layer, a first alkali-free glass layer provided on one face of the alkali glass layer, and a second alkali-free glass layer provided on another face of the alkali glass layer and a sensor that is provided on the first alkali-free glass layer of the first cover base and includes a plurality of first electrodes configured to detect the unevenness of a surface of an object to be detected that comes into contact with or close to the first cover base and a switching element. At least the first electrodes are formed above the first alkali-free glass layer and in a transmissive area that passes an image.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: April 28, 2020
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Shoji Hinata, Toshinori Uehara, Hiroshi Mizuhashi, Yuji Suzuki, Yasuhiro Kanaya
  • Patent number: 10621405
    Abstract: A fingerprint sensor and includes a first substrate having a first surface; an insulating layer having a second surface opposed to the first surface of the first substrate, and a third surface opposed to the second surface; sensor electrodes arranged in a matrix in the third surface; and a conductive portion arranged in the first surface of the first substrate and configured to supply a drive signal, wherein a height of the conductive portion is higher than a height of one of the sensor electrodes in a direction perpendicular to the first surface of the first substrate.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: April 14, 2020
    Assignee: Japan Display Inc.
    Inventors: Fumihito Shibano, Hiroshi Mizuhashi, Toshinori Uehara, Kimiyo Nonoyama, Hayato Kurasawa
  • Patent number: 10572047
    Abstract: 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: Grant
    Filed: December 20, 2017
    Date of Patent: February 25, 2020
    Assignee: Japan Display Inc.
    Inventors: Hiroshi Mizuhashi, Hayato Kurasawa, Yoshitoshi Kida, Toshinori Uehara, Takayuki Nakanishi
  • Patent number: 10564763
    Abstract: According to an aspect, a touch detecting apparatus includes: three or more detectors; three or more detection signal lines; an integration line; three or more switches; and a control circuit. The control circuit controls the number of times an output integration is performed. During the output integration, the control circuit switches a first type switch to a decoupling mode, and switches second type switches to a coupling mode. The first type switch is one switch coupled to a first type detector, and each second type switch is coupled to one or more of second type detectors with which the second type switch corresponds. During the output integration, the integration line outputs an integrated output of outputs from the second type detectors. The output integration is performed a plurality of times corresponding to at least the number of the detectors while a combination of the second type detectors is changed.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: February 18, 2020
    Assignee: JAPAN DISPLAY INC.
    Inventors: Toshio Soya, Toshinori Uehara, Hiroshi Mizuhashi
  • Publication number: 20190377211
    Abstract: A detection device is provided and including a first detector and a second detector each configured to detect that an object is in contact therewith or in proximity thereto; a signal processor configured to perform signal processing on a detection signal output from the first detector and the second detector; and a selector configured to select one of the first detector and the second detector, and couple the selected one of the first detector and the second detector to the signal processor, wherein the first detector or the second detector is configured to perform self-capacitance detection, the signal processor comprises a self-drive signal transmitter configured to output a self-drive signal for performing the self-capacitance detection, and the selector is configured to output the self-drive signal to a detection electrode of the selected one of the first detector and the second detector, and output the detection signal output from the detection electrode of the selected one of the first detector and the
    Type: Application
    Filed: August 22, 2019
    Publication date: December 12, 2019
    Inventors: Toshinori UEHARA, Hiroshi MIZUHASHI, Hayato KURASAWA
  • Publication number: 20190354739
    Abstract: A fingerprint sensor and includes a first substrate having a first surface; an insulating layer having a second surface opposed to the first surface of the first substrate, and a third surface opposed to the second surface; sensor electrodes arranged in a matrix in the third surface; and a conductive portion arranged in the first surface of the first substrate and configured to supply a drive signal, wherein a height of the conductive portion is higher than a height of one of the sensor electrodes in a direction perpendicular to the first surface of the first substrate.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 21, 2019
    Inventors: Fumihito SHIBANO, Hiroshi MIZUHASHI, Toshinori UEHARA, Kimiyo NONOYAMA, Hayato KURASAWA
  • Patent number: 10466843
    Abstract: According to an aspect, a touch detecting apparatus includes: three or more detectors; a generating circuit that performs generation for generating a plurality of pieces of output data corresponding to a plurality of patterns and having resolution lower than resolution corresponding to the number of the detectors based on outputs from the detectors; a calculating circuit that performs calculation for calculating, for each of the detectors, a composite value to be used to derive a detection result of each of the detectors based on the pieces of output data corresponding to the patterns.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: November 5, 2019
    Assignee: Japan Display Inc.
    Inventors: Toshinori Uehara, Hiroshi Mizuhashi, Toshio Soya
  • Patent number: 10460143
    Abstract: According to one embodiment, a sensor-equipped display device includes a scanning line, a signal line, a pixel switch, a pixel electrode, a first common electrode, a detection electrode, a current mirror circuit, and an integrator. The integrator includes an operational amplifier including an inverting input terminal and a noninverting input terminal.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: October 29, 2019
    Assignee: Japan Display Inc.
    Inventors: Toshinori Uehara, Hiroshi Mizuhashi, Toshio Soya