Patents by Inventor Yoshitoshi Kida

Yoshitoshi Kida 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).

  • Patent number: 10572090
    Abstract: A display panel with a touch detection function, in which display operation is less affected by touch detection operation, a method of driving the display panel with a touch detection function, a driving circuit, and an electronic unit having the display panel with a touch detection function are disclosed. The display panel with a touch detection function includes: one or more display elements; one or more drive electrodes; one or more touch detection electrodes; and a drive section selectively applying a DC drive signal or an AC drive signal to the drive electrodes.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: February 25, 2020
    Assignee: Japan Display Inc.
    Inventors: Hiroshi Mizuhashi, Yoshitoshi Kida, Koji Noguchi
  • 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: 10545593
    Abstract: A display device includes a plurality of sub pixels; a plurality of first electrodes, the sub pixel including the first electrode; a plurality of second electrodes, the second electrode being provided commonly for at least one row pixel group, the row pixel group including sub pixels arrayed in a line in a first direction, the plurality of second electrodes being arrayed in a second direction; a light emitting layer between the first electrode and the second electrode, the sub pixel including the light emitting layer; an output transistor connected with the first electrode, the output transistor capable of blocking supply of an electric current to the first electrode, the light emitting layer, and the second electrode; and a plurality of third electrodes facing the second electrodes, the third electrode and the second electrode forming capacitance, the third electrode being connected with a plurality of output terminals respectively.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: January 28, 2020
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Mitsuhide Miyamoto, Hiroshi Mizuhashi, Takayuki Nakanishi, Shuji Hayashi, Yoshitoshi Kida
  • Patent number: 10540031
    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.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: January 21, 2020
    Assignee: Japan Display Inc.
    Inventors: Yoshitoshi Kida, Koji Noguchi, Hiroshi Mizuhashi, Kohei Azumi
  • Publication number: 20190391695
    Abstract: A display device is provided and includes scanning signal lines including a first scanning signal line; pixel signal lines including a first pixel signal line; switch elements including a first switch being electrically coupled to the first scanning signal line and the pixel signal line; pixel electrodes including a first pixel electrode being electrically coupled to the first switch element; drive electrodes including a first drive electrode opposed to the first pixel electrode; a driver configured to drive the scanning signal lines, the pixel signal lines, and the drive electrodes; and a controller configured to control the driver in a frame.
    Type: Application
    Filed: September 6, 2019
    Publication date: December 26, 2019
    Inventors: Koji Noguchi, Yoshitoshi Kida, Kohei Azumi
  • Patent number: 10514810
    Abstract: A display apparatus with a substrate having a long side and a short side, a plurality of driving electrodes arranged on the substrate parallel to the long side of the substrate, a plurality of touch detection electrodes arranged on the substrate parallel to the short side of the substrate, a control unit electrically coupled to each of the plurality of driving electrodes and which sequentially drives the plurality of driving electrodes, and a detection unit electrically coupled to each of the touch detection electrodes.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: December 24, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventors: Koji Noguchi, Yoshitoshi Kida
  • Patent number: 10483475
    Abstract: A display device includes a plurality of sub pixels; a plurality of first electrodes, the sub pixel having the plurality of first electrodes; a plurality of second electrodes, the second electrode being provided commonly for at least one row pixel group, the row pixel group including sub pixels arrayed in a line in a first direction among the plurality of sub pixels, the plurality of second electrodes being arrayed in a second direction crossing the first direction; a light emitting layer between the first electrode and the second electrode, the sub pixel having the light emitting layer; and a plurality of third electrodes facing the second electrodes, the third electrodes and the second electrodes forming capacitances, the third electrodes being connected with a plurality of output terminals respectively.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: November 19, 2019
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Mitsuhide Miyamoto, Hiroshi Mizuhashi, Takayuki Nakanishi, Shuji Hayashi, Yoshitoshi Kida
  • Patent number: 10437367
    Abstract: A display apparatus includes a basement, a display functional layer, a first electrode, a guard electrode, and a detection controller. The basement has a first surface and a second surface opposite to the first surface. The display functional layer is arranged on the side of the second surface of the basement. The first electrode is arranged between the basement and the display functional layer and detects an object in contact with or in proximity to the first surface. The guard electrode is arranged between the first electrode and the basement and supplied with a guard signal. The guard signal suppresses a change in capacitance generated between the first electrode and the guard electrode. The detection controller is a controller to which a signal based on a change in capacitance of the first electrode is output from the first electrode.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 8, 2019
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Shinichiro Oka, Toshinori Uehara, Hiroshi Mizuhashi, Yoshitoshi Kida
  • Publication number: 20190278404
    Abstract: A detection device includes a plurality of drive electrodes, wherein: in a first mode, a first drive electrode block including a first number of the drive electrodes are supplied with a first drive signal; in a second mode, a second drive electrode block including a second number of the drive electrodes are supplied with a second drive signal; and the first number is different from the second number.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 12, 2019
    Inventors: Koji ISHIZAKI, Kouji NOGUCHI, Tsutomu HARADA, Takeya TAKEUCHI, Yoshitoshi KIDA, Takayuki NAKANISHI
  • Patent number: 10409409
    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.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: September 10, 2019
    Assignee: Japan Display Inc.
    Inventors: Koji Noguchi, Yoshitoshi Kida, Kohei Azumi
  • Publication number: 20190250743
    Abstract: A display apparatus with a substrate having a long side and a short side, a plurality of driving electrodes arranged on the substrate parallel to the long side of the substrate, a plurality of touch detection electrodes arranged on the substrate parallel to the short side of the substrate, a control unit electrically coupled to each of the plurality of driving electrodes and which sequentially drives the plurality of driving electrodes, and a detection unit electrically coupled to each of the touch detection electrodes.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 15, 2019
    Applicant: Japan Display Inc.
    Inventors: Koji Noguchi, Yoshitoshi Kida
  • Publication number: 20190220140
    Abstract: According to an aspect, a display device with a touch detection function includes: a display region; a plurality of drive electrodes; a control device; a touch detection electrode that is opposed to the drive electrodes and forms capacitance with respect to the drive electrodes; power supply wiring arranged in a frame region positioned outside the display region; and a plurality of drive electrode scanning units that select the drive electrode to be coupled to the power supply wiring. When the drive electrode scanning unit simultaneously selects the drive electrodes of which number is equal to or larger than the number of pieces of the power supply wiring, the control device supplies a touch driving signal that is multiplexed based on a certain code to each of the selected drive electrodes.
    Type: Application
    Filed: March 26, 2019
    Publication date: July 18, 2019
    Inventors: Hiroshi Mizuhashi, Tadayoshi Katsuta, Yoshitoshi Kida
  • Patent number: 10355058
    Abstract: A display device includes a plurality of first detection electrodes that are respectively disposed in a plurality of first areas, which are shaped in a stripe pattern and extend in the first direction, and extend in a first direction, an insulating layer that is disposed in a grid-like area, covers the first detection electrodes, and is placed on perimeters of pixel electrodes, and a plurality of second detection electrodes that are disposed on a sealing layer along a plurality of second areas and extend in a second direction, the second areas being included in the grid-like area, shaped in a stripe pattern, and extending in the second direction. The common electrodes are respectively disposed on a plurality of second banks and continue to the first direction.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: July 16, 2019
    Assignee: Japan Display Inc.
    Inventors: Mitsuhide Miyamoto, Hayato Kurasawa, Hiroshi Mizuhashi, Takayuki Nakanishi, Shuji Hayashi, Yoshitoshi Kida
  • Patent number: 10324579
    Abstract: A display apparatus with a substrate having a long side and a short side, a plurality of driving electrodes arranged on the substrate parallel to the long side of the substrate, a plurality of touch detection electrodes arranged on the substrate parallel to the short side of the substrate, a control unit electrically coupled to each of the plurality of driving electrodes and which sequentially drives the plurality of driving electrodes, and a detection unit electrically coupled to each of the touch detection electrodes.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: June 18, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventors: Koji Noguchi, Yoshitoshi Kida
  • Publication number: 20190171316
    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.
    Type: Application
    Filed: March 22, 2018
    Publication date: June 6, 2019
    Inventors: Koji Noguchi, Yoshitoshi Kida, Kohei Azumi
  • Patent number: 10310664
    Abstract: A display device including a display section having a plurality of pixel electrodes; and a plurality of drive electrodes extending in a first direction and arranged side-by-side in a second direction. Each of the drive electrodes has a width in the second direction corresponding to a size of the two or more pixel electrodes, and has one or more slits extending in the first direction.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: June 4, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventors: Koji Noguchi, Yoshitoshi Kida, Kohei Azumi, Takayuki Nakanishi, Hiroshi Mizuhashi
  • Patent number: 10310684
    Abstract: A touch sensor that may detect an object away from the sensor is provided. The touch sensor includes one or more drive electrodes; one or more detection electrodes forming capacitance in cooperation with the respective drive electrodes; a detection circuit applying drive signals to the respective drive electrodes to detect the object based on detection signals obtained from the respective detection electrodes in response to the respective drive signals; and a controller controlling to change a range of electric flux lines generated between the drive electrodes and the detection electrodes.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: June 4, 2019
    Assignee: Japan Display Inc.
    Inventors: Koji Ishizaki, Kouji Noguchi, Tsutomu Harada, Takeya Takeuchi, Yoshitoshi Kida, Takayuki Nakanishi
  • Patent number: 10296156
    Abstract: According to an aspect, a touch detection device includes a drive electrode layer including a plurality of drive electrodes formed in stripes in an array direction; a plurality of touch detection electrodes that are arranged in a manner facing the plurality of drive electrodes and generate capacitance with the plurality of drive electrodes; and a touch detecting unit that applies a touch drive signal to the plurality of drive electrodes and detects a position of an object in contiguity with a touch detection area based on detection signals supplied from the plurality of touch detection electrodes. The plurality of the drive electrodes include an end drive electrode that is provided to at least one end in the array direction and has a larger width in the array direction than the width in the array direction of drive electrodes other than the end drive electrode.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: May 21, 2019
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Yasuyuki Teranishi, Yoshitoshi Kida
  • Patent number: 10289234
    Abstract: According to an aspect, a display device with a touch detection function includes: a display region; a plurality of drive electrodes; a control device; a touch detection electrode that is opposed to the drive electrodes and forms capacitance with respect to the drive electrodes; power supply wiring arranged in a frame region positioned outside the display region; and a plurality of drive electrode scanning units that select the drive electrode to be coupled to the power supply wiring. when the drive electrode scanning unit simultaneously selects the drive electrodes of which number is equal to or larger than the number of pieces of the power supply wiring, the control device supplies a touch driving signal that is multiplexed based on a certain code to each of the selected drive electrodes.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: May 14, 2019
    Assignee: Japan Display Inc.
    Inventors: Hiroshi Mizuhashi, Tadayoshi Katsuta, Yoshitoshi Kida
  • Publication number: 20190138132
    Abstract: A display panel with a touch detection function, in which display operation is less affected by touch detection operation, a method of driving the display panel with a touch detection function, a driving circuit, and an electronic unit having the display panel with a touch detection function are disclosed. The display panel with a touch detection function includes: one or more display elements; one or more drive electrodes; one or more touch detection electrodes; and a drive section selectively applying a DC drive signal or an AC drive signal to the drive electrodes.
    Type: Application
    Filed: December 31, 2018
    Publication date: May 9, 2019
    Inventors: Hiroshi Mizuhashi, Yoshitoshi Kida, Koji Nogushi