Patents by Inventor Yasuyuki Teranishi

Yasuyuki Teranishi 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: 10095338
    Abstract: According to one embodiment, a sensor-equipped display device includes first electrodes and a detection electrode. The first electrodes constitute sensor drive electrodes by being supplied with sensor drive signals separately and sequentially or sensor drive electrodes by simultaneously supplying the sensor drive signals to the first electrodes adjacent to each other. A width of the sensor drive electrode including the first electrode on the edge is smaller than a width of the other sensor drive electrode not including the first electrode on the edge.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: October 9, 2018
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Yasuyuki Teranishi, Hiroshi Mizuhashi, Koji Ishizaki, Daisuke Ito
  • Publication number: 20180284922
    Abstract: A display device includes a substrate, first electrodes, second electrodes, and a driver. The first electrodes are disposed in a matrix (row-column configuration) in a display region of the substrate. The second electrodes are disposed in a peripheral region on the outside of the display region of the substrate. The driver supplies a drive signal to the first electrodes and the second electrodes. The first electrodes output detection signals corresponding to self-capacitance changes in the first electrodes. The second electrodes output detection signals corresponding to self-capacitance changes in the second electrodes.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 4, 2018
    Inventors: Yasuyuki TERANISHI, Gen KOIDE
  • Patent number: 10082923
    Abstract: A capacitive type touch sensor appropriately detecting an object, and a display and an electronic device including such a touch sensor are provided. The display including a drive electrode receiving a drive signal, a detection electrode located adjacent to the drive electrode, and a dielectric material located between the drive electrode and the detection electrode defining a capacitive area. The detection electrode generates an output signal driven by the drive signal, a detection circuit electrically connected to the detection electrode sensing the output signal. A switch element is electrically connected between the detection electrode and a voltage source providing a predefined voltage level and having a first state and a second state. A display control circuit controls a voltage applied between a display common voltage electrode and a pixel electrode to display an image based on an image signal, and the display common voltage electrode serves as the drive electrode.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: September 25, 2018
    Assignee: Japan Display Inc.
    Inventors: Yasuyuki Teranishi, Koji Noguchi, Koji Ishizaki, Takeya Takeuchi, Takayuki Nakanishi
  • Patent number: 10082898
    Abstract: According to an aspect, a detection apparatus includes a touch detection surface having two dimensions, a touch detection unit and a force detection unit. The touch detection unit includes: first electrodes extending along a first direction; and a first signal output unit configured to output a first signal indicating a position of the touch operation in a second direction. Each first electrode includes divided electrodes provided in the first direction. First detection regions each provided by bundling the divided electrodes arranged in the second direction are set. The force detection unit includes a base electrode configured such that distances between the base electrode and the respective divided electrodes change when the first electrodes bend according to the applied force applied. The force signal is a signal based on electrostatic capacitances obtained by individual detection.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: September 25, 2018
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Yasuyuki Teranishi
  • Publication number: 20180260069
    Abstract: A display device includes a substrate, pixel electrodes, first electrodes, gate lines, signal lines, switching elements, a conductor, and a driver. The pixel electrodes are arrayed in a display region of the substrate. The first electrodes are separated from the pixel electrodes in a direction perpendicular to the substrate. The gate lines are disposed between the substrate and the first electrodes in the direction perpendicular to the substrate and extend in a plane parallel to the surface of the substrate. The signal lines intersect the gate lines in planar view. The switching elements are provided at the intersections of the gate lines and the signal lines. The conductor is provided opposite to the gate lines and the signal lines across the substrate in the direction perpendicular to the substrate.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 13, 2018
    Inventors: Takafumi SUZUKI, Yasuyuki TERANISHI
  • Publication number: 20180246596
    Abstract: A display device includes a substrate, a plurality of detection electrodes, a drive circuit, a detector, and a first switching circuit. The detection electrodes are provided in a display area of the substrate. The drive circuit supplies a drive signal to the detection electrodes. The detector receives, from the detection electrodes, a detection signal corresponding to a capacitance change in the detection electrodes occurring when the drive signal is supplied. The first switching circuit is coupled to the detector via wiring and provided between the detection electrodes and the detector. The first switching circuit changes the number of detection electrodes electrically coupled to one of the wiring based on the detection signal.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 30, 2018
    Inventors: Naoki TAKADA, Hayato KURASAWA, Koji NOGUCHI, Takayuki NAKANISHI, Yasuyuki TERANISHI
  • Publication number: 20180239460
    Abstract: A capacitive type touch sensor appropriately detecting an object, and a display and an electronic device including such a touch sensor are provided. The display including a drive electrode receiving a drive signal, a detection electrode located adjacent to the drive electrode, and a dielectric material located between the drive electrode and the detection electrode defining a capacitive area. The detection electrode generates an output signal driven by the drive signal, a detection circuit electrically connected to the detection electrode sensing the output signal. A switch element is electrically connected between the detection electrode and a voltage source providing a predefined voltage level and having a first state and a second state. A display control circuit controls a voltage applied between a display common voltage electrode and a pixel electrode to display an image based on an image signal, and the display common voltage electrode serves as the drive electrode.
    Type: Application
    Filed: February 13, 2018
    Publication date: August 23, 2018
    Inventors: Yasuyuki Teranishi, Koji Noguchi, Koji Ishizaki, Takeya Takeuchi, Takayuki Nakanishi
  • Publication number: 20180224973
    Abstract: To provide a display capable of achieving downsizing and a touch detection method. The display includes a pixel array including a plurality of pixels disposed in a matrix form, a plurality of scanning lines disposed in each row of the pixel array and supplying scanning signals to the plurality of pixels disposed in corresponding rows, a plurality of signal lines disposed in each column of the pixel array and supplying image signals to the plurality of pixels disposed in corresponding columns, a plurality of common electrodes disposed in each of the columns of the pixel array and supplied with driving signals for detecting touch, and a semiconductor device for touch including a plurality of driving terminals for supplying the driving signals. Here, the plurality of driving terminals of the semiconductor device for touch are smaller in number than the plurality of common electrodes disposed in the pixel array.
    Type: Application
    Filed: April 2, 2018
    Publication date: August 9, 2018
    Inventors: Yasuyuki TERANISHI, Daisuke ITO, Hiroshi MIZUHASHI
  • Publication number: 20180217712
    Abstract: According to one embodiment, a display device includes first electrodes overlapping a display area, a cover base covering the display area and a frame area, a second electrode arranged in the cover base and overlapping the frame area, a touch detection driver configured to output a drive signal to the second electrode, and a level shifter arranged between the second electrode and the touch detection driver, and configured to increase a signal level of the drive signal and output the drive signal having the increased signal level to the second electrode. The touch detection driver is configured to detect contact or proximity to an object with the frame area based on electrostatic capacitance between the first electrodes and the second electrode.
    Type: Application
    Filed: January 16, 2018
    Publication date: August 2, 2018
    Inventors: Yasuyuki TERANISHI, Takafumi SUZUKI, Michita KUDO
  • Publication number: 20180217711
    Abstract: According to one embodiment, a display device which displays an image in a display area based on a pixel signal is provided. The display device includes a first substrate, a second substrate opposed to the first substrate, a first electrode arranged in the first substrate and overlapping a frame area outside the display area, second electrodes arranged in the second substrate and overlapping the display area, and a touch detection driver configured to output a drive signal to the first electrode and detect contact or proximity of an object with the frame area based on electrostatic capacitance between the first electrode and the second electrodes.
    Type: Application
    Filed: January 16, 2018
    Publication date: August 2, 2018
    Inventors: Yasuyuki TERANISHI, Yoshiharu NAKAJIMA
  • Patent number: 10025425
    Abstract: 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: Grant
    Filed: April 4, 2017
    Date of Patent: July 17, 2018
    Assignee: JAPAN DISPLAY INC.
    Inventors: Takayuki Nakanishi, Koji Noguchi, Koji Ishizaki, Yasuyuki Teranishi, Takeya Takeuchi
  • Patent number: 10013932
    Abstract: A liquid crystal display device in which pixels having a memory function are arranged includes: a display drive unit performing display driving by a driving method for obtaining halftone gray scales by setting plural frames as one cycle and temporarily changing gray scales of respective pixels within one cycle; and a pixel drive unit supplying a voltage having the same phase as, or the reverse phase to, a common voltage the polarity of which is inverted in a given cycle and applied to counter electrodes of liquid crystal capacitors to pixel electrodes of the liquid crystal capacitors. The pixel drive unit supplies an intermediate voltage between high- and low-voltage sides of the common voltage to the pixel electrodes of the liquid crystal capacitors at the time of transition from the supply of the voltage having the same phase to the supply of the voltage having reverse phase.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: July 3, 2018
    Assignee: Japan Display Inc.
    Inventor: Yasuyuki Teranishi
  • Publication number: 20180164946
    Abstract: A display device with a touch detection function includes a control device that performs, in normal operation mode, image display control to exhibit an image display function of a display function layer based on an image signal and performs touch detection control; a touch detecting unit that detects, in the normal operation mode, a position of an object in proximity to or in contact with the touch detection electrode based on a detection signal transmitted from the touch detection electrode; and a touch-detection controller that detects, in sleep mode, the proximity of the object to or the contact thereof with the touch detection electrode. When the touch-detection controller detects the proximity of the object to or the contact thereof with the touch detection electrode in the sleep mode, the control device controls a pixel electrode to a predetermined potential, and thereafter supplies a touch drive signal to a drive electrode.
    Type: Application
    Filed: January 25, 2018
    Publication date: June 14, 2018
    Inventors: Koji NOGUCHI, Hidetoshi KOMATSU, Yasuyuki TERANISHI
  • Patent number: 9983719
    Abstract: It is an object of the present invention to provide a display capable of improving the detection sensitivity and position resolution even when an input tool has contacted or approached boundary portions of drive ranges or end portions of the display region. The driving electrode driver performs scanning operations for supplying driving signals to one driving electrode or N1 (N1?2) number of driving electrodes disposed at an end portion on one side of an array. Next, the driving electrode driver repeats scanning operations for supplying the driving signals to the selected N2 (N2?2) number of driving electrodes a plurality of times by shifting each of the selected N2 number of driving electrodes N3 number by N3 number. N3 is less than N2.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: May 29, 2018
    Assignee: Japan Display Inc.
    Inventors: Koji Noguchi, Yasuyuki Teranishi, Yoshiyuki Teshirogi, Daisuke Ito
  • Patent number: 9965121
    Abstract: To provide a display capable of achieving downsizing and a touch detection method. The display includes a pixel array including a plurality of pixels disposed in a matrix form, a plurality of scanning lines disposed in each row of the pixel array and supplying scanning signals to the plurality of pixels disposed in corresponding rows, a plurality of signal lines disposed in each column of the pixel array and supplying image signals to the plurality of pixels disposed in corresponding columns, a plurality of common electrodes disposed in each of the columns of the pixel array and supplied with driving signals for detecting touch, and a semiconductor device for touch including a plurality of driving terminals for supplying the driving signals. Here, the plurality of driving terminals of the semiconductor device for touch are smaller in number than the plurality of common electrodes disposed in the pixel array.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: May 8, 2018
    Assignee: Japan Display Inc.
    Inventors: Yasuyuki Teranishi, Daisuke Ito, Hiroshi Mizuhashi
  • Publication number: 20180120980
    Abstract: A display device includes: a pixel array having pixels arranged in matrix and having a first side parallel to a row and a second side opposite to the first side; scanning lines arranged in each row of the pixel array to supply a scanning signal to the pixels arranged in a corresponding row; signal lines arranged in each column of the pixel array to supply an image signal to the pixels arranged in a corresponding column; drive electrodes arranged in a column of the pixel array and to which a drive signal to detect an external proximate object is supplied; and a first drive electrode circuit arranged along the first side and connected to control lines and the drive electrodes arranged in the pixel array to supply the drive signal to, among the drive electrodes, the drive electrode specified by a selection signal supplied via the control lines.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Inventors: Hiroshi MIZUHASHI, Makoto HAYASHI, Yasuyuki TERANISHI, Daisuke ITO
  • Patent number: 9953604
    Abstract: Disclosed herein is a display device, including: a display surface; a display functional layer adapted to control the display of a screen viewed from outside the display surface; a drive control section operable to perform display scanning and driving adapted to scan and drive, in the one direction, the plurality of drive electrodes, and also operable to perform, a plurality of times and for M display screens, detection scanning and driving adapted to continuously scan and drive all or part of the plurality of drive electrodes within the period of time; and a plurality of sensor lines arranged in a direction other than the one direction to be separate from each other, which produce an electrical change if an object to be detected comes in contact with or proximity to the display surface while the drive control section performs the detection scanning and driving.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: April 24, 2018
    Assignee: Japan Display Inc.
    Inventors: Kouji Noguchi, Takayuki Nakanishi, Koji Ishizaki, Yasuyuki Teranishi, Takeya Takeuchi
  • Patent number: 9946400
    Abstract: 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: Grant
    Filed: March 7, 2017
    Date of Patent: April 17, 2018
    Assignee: Japan Display Inc.
    Inventors: Koji Ishizaki, Kouji Noguchi, Takayuki Nakanishi, Yasuyuki Teranishi, Takeya Takeuchi
  • Patent number: 9940887
    Abstract: A liquid crystal display device is provided. The liquid crystal including an array of pixels each having a memory function; and a buffer to output a first voltage, wherein a second voltage is supplied to a counter electrode of a liquid crystal capacitor, and wherein each of the pixels supplies one of the first voltage and the second voltage to a pixel electrode of the liquid crystal capacitor according to a data value stored in the each of the pixels.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: April 10, 2018
    Assignee: Japan Display Inc.
    Inventor: Yasuyuki Teranishi
  • Patent number: 9927925
    Abstract: A capacitive type touch sensor appropriately detecting an object, and a display and an electronic device including such a touch sensor are provided. The display including a drive electrode receiving a drive signal, a detection electrode located adjacent to the drive electrode, and a dielectric material located between the drive electrode and the detection electrode defining a capacitive area. The detection electrode generates an output signal driven by the drive signal, a detection circuit electrically connected to the detection electrode sensing the output signal. A switch element is electrically connected between the detection electrode and a voltage source providing a predefined voltage level and having a first state and a second state. A display control circuit controls a voltage applied between a display common voltage electrode and a pixel electrode to display an image based on an image signal, and the display common voltage electrode serves as the drive electrode.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: March 27, 2018
    Assignee: Japan Display Inc.
    Inventors: Yasuyuki Teranishi, Koji Noguchi, Koji Ishizaki, Takeya Takeuchi, Takayuki Nakanishi