Patents by Inventor Takeo Koito

Takeo Koito 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: 10386671
    Abstract: According to one embodiment, a display device includes a display panel and an illumination device. The illumination device includes a light source unit, at least one light-shielding body which blocks part of the light emitted from the light source unit, at least one lens which refracts the light emitted from the light source unit, and an illumination controller. The illumination controller controls a first mode in which the light-shielding body and the lens are arranged at a first position, and a second mode in which at least one of the light-shielding body and the lens is arranged at a second position, which is different from the first position.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: August 20, 2019
    Assignee: Japan Display Inc.
    Inventor: Takeo Koito
  • Publication number: 20190196637
    Abstract: According to an aspect, a display device with a touch detecting function includes: a substrate; a display area; a touch detection electrode provided with a plurality of conductive thin wires, each of the conductive thin wires including a plurality of thin wire pieces each having a linear shape and including a first end and a second end; a drive electrode; and a display functional layer. The adjacent thin wire pieces are arranged so as to be bent at a bent portion serving as a portion at which the second end of the one thin wire piece of the adjacent thin wire pieces is connected to the first end of the other thin wire piece of the adjacent thin wire pieces, and the conductive thin wires include a bent portion having an angle formed by the adjacent thin wire pieces different from angles of the other bent portions.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Inventors: Takeo KOITO, Koji ISHIZAKI, Hayato KURASAWA
  • Publication number: 20190187484
    Abstract: According to one embodiment, a display device includes a display portion including sub-pixels, and a light control portion overlapping the display portion, wherein the display portion includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, each of the red sub-pixel, the green sub-pixel, and the blue sub-pixel is shaped in a parallelogram, and inclined at a first angle of greater than or equal to 4° and less than or equal to 16° with respect to the second direction, the light control portion is inclined at a second angle substantially equivalent to arctan(2/9) with respect to the second direction.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 20, 2019
    Applicants: Japan Display Inc., NHK Media Technology, Inc.
    Inventors: Takeo KOITO, Shuji HAYASHI, Teijiro OTSUKA
  • Patent number: 10310356
    Abstract: According to one embodiment, an optical device includes a liquid crystal element including a first substrate including a plurality of first control electrodes, a second substrate which is opposed to the first substrate and comprises a second control electrode, and a first liquid crystal layer held between the first substrate and the second substrate, and a modulation element opposed to the liquid crystal element, the modulation element including a modulation portion which modulates incident light, and a non-modulation portion which is adjacent to the modulation portion.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: June 4, 2019
    Assignee: Japan Display Inc.
    Inventors: Tatsuya Yata, Takayuki Nakanishi, Takeo Koito
  • Patent number: 10310331
    Abstract: A liquid crystal panel includes: first and second substrates arranged to be opposite each other at a predetermined gap; a liquid crystal layer filled between the first and second substrates; alignment films; a counter electrode pattern formed on the first substrate; and a pixel electrode pattern formed on the first substrate so as to have a plurality of electrode branches, the extension direction of which is bent at one bend point provided near an upper pixel portion from the center of a pixel region, and which are connected at the end portion of at least the upper pixel portion or lower pixel portion, wherein the extension direction of a slit formed near the upper pixel portion from the bend point from among slits formed in the pixel electrode pattern crosses the alignment direction of the liquid crystal layer at an angle of 7° or larger.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: June 4, 2019
    Assignee: Japan Display Inc.
    Inventors: Yoshihiro Sakurai, Hironao Tanaka, Harumi Okuno, Takeo Koito
  • Patent number: 10303288
    Abstract: A touch panel is disclosed herein. In an embodiment, the touch panel includes a substrate with first and second surfaces, a drive electrode facing the first surface, a plurality of touch detection electrodes facing the second surface, and a dummy electrode between adjacent touch detection electrodes. Each touch detection electrode includes a first conductive thin wire extending parallel to the first and second surfaces. The dummy electrode includes a second conductive thin wire extending along the first conductive thin wire. The first conductive thin wire includes a first bent portion and a second bent portion alternately arranged with the first conductive thin wire having a zigzag pattern. The second conductive thin wire includes a third bent portion and a slit that are alternately arranged. The third bent portion is arranged on a virtual straight line formed by virtually connecting the first bent portions of one first conductive thin wire.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: May 28, 2019
    Assignee: Japan Display Inc.
    Inventors: Koji Ishizaki, Hayato Kurasawa, Takeo Koito
  • Patent number: 10302986
    Abstract: According to one embodiment, a display device includes an illumination unit, a polarizing element which transmits a specific polarized component of light entering from the illumination unit, a display panel which transmits the polarized light entering from the polarizing element while maintaining or converting a polarized state, an optical element comprising a transmission axis which transmits first linearly polarized light, which transmits or reflects the light entering from the display panel and a reflective element which retro-reflects the light reflected by the optical element, and the display panel and the reflective element face one surface of the optical element.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: May 28, 2019
    Assignee: Japan Display Inc.
    Inventors: Takeo Koito, Yudai Numata
  • Patent number: 10296150
    Abstract: A detection apparatus includes a first electrode, a second electrode provided at a position that does not overlap with the first electrode, a third electrode arranged facing the first electrode and the second electrode via a spacing, and a detector configured to apply a drive signal to the first electrode and detect an output signal appearing in the second electrode.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: May 21, 2019
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Yasuyuki Teranishi, Hiroshi Mizuhashi, Takeo Koito, Shuji Hayashi
  • Publication number: 20190129245
    Abstract: According to one embodiment, an optical element, including a first liquid crystal lens formed of liquid crystal molecules, a polarizer opposed to the first liquid crystal lens, a first modulating portion located between the first liquid crystal lens and the polarizer to modulate incident light and a first unmodulating portion located between the first liquid crystal lens and the polarizer and adjacent to the first modulating portion.
    Type: Application
    Filed: October 24, 2018
    Publication date: May 2, 2019
    Applicant: Japan Display Inc.
    Inventors: Takayuki NAKANISHI, Tatsuya Yata, Takeo Koito
  • Patent number: 10268070
    Abstract: According to one embodiment, a display device includes an optical element which transmits or reflects incident light, and a first reflective element including a first reflective portion and a second reflective portion. The first reflective portion retroreflects reflective light reflected on the optical element. The second reflective portion has an area less than an area of the first reflective portion and regularly reflects the reflective light.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: April 23, 2019
    Assignee: Japan Display Inc.
    Inventors: Takeo Koito, Yudai Numata
  • Patent number: 10254869
    Abstract: According to an aspect, a display device with a touch detecting function includes: a substrate; a display area; a touch detection electrode provided with a plurality of conductive thin wires, each of the conductive thin wires including a plurality of thin wire pieces each having a linear shape and including a first end and a second end; a drive electrode; and a display functional layer. The adjacent thin wire pieces are arranged so as to be bent at a bent portion serving as a portion at which the second end of the one thin wire piece of the adjacent thin wire pieces is connected to the first end of the other thin wire piece of the adjacent thin wire pieces, and the conductive thin wires include a bent portion having an angle formed by the adjacent thin wire pieces different from angles of the other bent portions.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: April 9, 2019
    Assignee: Japan Display Inc.
    Inventors: Takeo Koito, Koji Ishizaki, Hayato Kurasawa
  • Patent number: 10257504
    Abstract: According to one embodiment, a display device includes a display unit which displays an image, a barrier unit including a plurality of barrier regions, each of the barrier regions including two nontransmissive regions which block light transmitted from the display unit and one transmissive region which is arranged between the two nontransmissive regions and allows light transmitted from the display unit to pass through, and a control unit. The control unit controls the barrier pitch of the barrier regions, according to viewer's position. Further, the control unit controls each of edge-units constituting the transmissive region into a state of transmissive or nontransmissive.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: April 9, 2019
    Assignee: Japan Display Inc.
    Inventors: Daichi Suzuki, Takeo Koito
  • Patent number: 10222528
    Abstract: According to one embodiment, a display device includes an optical element urging incident light to be transmitted or reflected, a first reflective element includes a first retroreflective surface in an uneven state on which the light reflected on the optical element is retroreflected, and a first specular reflection surface on which the light reflected on the optical element is specularly reflected, and a second reflective element includes a second retroreflective surface in an uneven state on which the light reflected on the first specular reflection surface is retroreflected.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: March 5, 2019
    Assignee: Japan Display Inc.
    Inventors: Yudai Numata, Takeo Koito
  • Patent number: 10216348
    Abstract: According to an aspect, a display device with a touch detection function includes: a substrate; a display area in which pixels each constituted by different color regions are arranged in a matrix and that includes color columns in which the color regions of the same colors extend side by side; a touch detection electrode that includes a plurality of conductive thin wires; and a drive electrode. Each of the conductive thin wires includes a plurality of portions at each of which the conductive thin wire extends in a direction at an angle with respect to a direction of extension of the color regions, and a plurality of bent portions at each of which the conductive thin wire is bent with the angle changed. The conductive thin wires include portions each overlapping all of the color columns in a direction orthogonal to the surface of the substrate.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: February 26, 2019
    Assignee: Japan Display Inc.
    Inventors: Takeo Koito, Koji Ishizaki, Hayato Kurasawa
  • Publication number: 20190018537
    Abstract: According to one embodiment, a sensor-equipped display device includes a display panel, a detection electrode, a conductive member arranged at intervals from the display panel and the detection electrode, and controller. In a first sense period, the controller drives a common electrode of the display panel or the detection electrode and extracts input position data from the detection electrode. In a second sense period, the controller drives the conductive member and extracts first input pressure data from a first electrode, the controller drives a second electrode and extracts second input pressure data from the conductive member, or the controller drives a third electrode and extracts third input pressure data from the third electrode.
    Type: Application
    Filed: September 7, 2018
    Publication date: January 17, 2019
    Inventors: Kazuyuki KOBAYASHI, Hayato KURASAWA, Hiroshi MIZUHASHI, Masaya TAMAKI, Takeo KOITO, Koji NOGUCHI
  • Patent number: 10175533
    Abstract: According to one embodiment, a display device includes a display module which emits display light, an optical element which transmits or reflects the display light, a reflective element which retroreflects the display light reflected from the optical element, and a first light-guide which imparts directivity toward the optical element to the display light emitted from the display module.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: January 8, 2019
    Assignee: Japan Display Inc.
    Inventors: Takeo Koito, Yudai Numata
  • Patent number: 10171801
    Abstract: According to an aspect, a display device includes: a position information acquiring unit that acquires position information on a position of a viewer; a separation unit that changes a position of an image separator based on the position information; an illumination unit that changes a direction of an optical axis of illumination light based on the position information of the viewer in synchronization with a timing at which the position of the image separator is changed; and a display unit that modulates the illumination light and displays an image including plural parallax images.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: January 1, 2019
    Assignee: Japan Display Inc.
    Inventors: Yingbao Yang, Takeo Koito, Daichi Suzuki
  • Patent number: 10152168
    Abstract: According to one embodiment, a sensor-equipped display device includes a display panel, a detection electrode, a conductive member arranged at intervals from the display panel and the detection electrode, and controller. In a first sense period, the controller drives a common electrode of the display panel or the detection electrode and extracts input position data from the detection electrode. In a second sense period, the controller drives the conductive member and extracts first input pressure data from a first electrode, the controller drives a second electrode and extracts second input pressure data from the conductive member, or the controller drives a third electrode and extracts third input pressure data from the third electrode.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: December 11, 2018
    Assignee: Japan Display Inc.
    Inventors: Kazuyuki Kobayashi, Hayato Kurasawa, Hiroshi Mizuhashi, Masaya Tamaki, Takeo Koito, Koji Noguchi
  • Patent number: 10139942
    Abstract: A display device includes: a plurality of pixel electrodes each of which is provided in each of a plurality of sub-pixels arranged in a display region; a driving electrode provided so as to overlap the plurality of pixel electrodes when seen in a plan view; a plurality of detecting electrodes provided so as to overlap the driving electrode when seen in a plan view; and a dummy electrode provided apart from the detecting electrodes. The detecting electrodes and the dummy electrode include a metal layer or an alloy layer. A ratio of total sum of areas of portions of the plurality sub-pixels which overlap any of the detecting electrodes and the dummy electrode when seen in a plan view to total sum of areas of the plurality of sub-pixels is 1 to 22%.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: November 27, 2018
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Koji Ishizaki, Takeo Koito
  • Publication number: 20180329262
    Abstract: According to one embodiment, a display device includes a display panel including a reflective layer, a liquid crystal element opposing the display panel and a controller that controls the liquid crystal element. The liquid crystal element includes a first substrate, a second substrate, a liquid crystal layer, a first control electrode, a second control electrode, a third control electrode, and a fourth control electrode. The controller applies a first voltage for forming a first lens of a first shape, to the first control electrode and the second control electrode, and a second voltage for forming a second lens of a second shape, to the third control electrode and the fourth control electrode. The first shape is different from the second shape.
    Type: Application
    Filed: May 10, 2018
    Publication date: November 15, 2018
    Applicant: Japan Display Inc.
    Inventors: Tatsuya Yata, Takayuki Nakanishi, Takeo Koito