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).

  • Display apparatus and liquid crystal barrier device
    Patent number: 9188801
    Abstract: A display apparatus includes: a display unit; and a liquid crystal variable barrier arranged so as to face the display unit, having plural strip-shaped first electrodes, a second electrode arranged so as to face the first electrodes and a liquid crystal layer arranged between the first electrodes and the second electrode, and separating an image displayed by the display unit into images respectively corresponding to plural viewpoints, wherein the first electrodes are arranged so that adjacent first electrodes partially overlap each other through an insulating layer, and plural first electrodes form an opening.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: November 17, 2015
    Assignee: Japan Display Inc.
    Inventors: Daisuke Takama, Takeo Koito
  • Display device with touch detection function and electronic apparatus
    Patent number: 9176632
    Abstract: According to an aspect, a display device with a touch detection function includes a display area and a touch detection electrode that includes thin wire segments having first and second ends. Thin wire segments include a thin wire segment extending in a direction different from a pixel arrangement direction in which color regions having the highest human visibility are arranged. The second end is located away from the first end in a direction toward a target position that is distant from the first end in a pixel orthogonal direction by N times of a maximum length of one of the pixels in the pixel orthogonal direction, and in the pixel arrangement direction by M times of a maximum length of one of the pixels in the pixel arrangement direction. Each of N and M is an integer of 2 or larger. N and M are different from each other.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 3, 2015
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Koji Ishizaki, Takeo Koito
  • Display device with touch detecting function and electronic apparatus
    Patent number: 9170696
    Abstract: According to an aspect, a display device with a touch detecting function includes: a display area in which pixels each composed of a plurality of color areas are arranged in a matrix; a touch detection electrode including a first conductive thin wire extending in a first direction; and a dummy electrode including a plurality of second conductive thin wires; a drive electrode having capacitance for the touch detection electrode. Each of the second conductive thin wires includes a plurality of thin wire pieces extending in a direction different from the first direction and is divided by a slit between the thin wire pieces. A color area in the display area with which the slit overlaps has a different color from a color area in the display area with which a slit closest to the slit in a second direction orthogonal to the first direction overlaps.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: October 27, 2015
    Assignee: Japan Display Inc.
    Inventors: Koji Ishizaki, Hayato Kurasawa, Takeo Koito
  • Image display apparatus and variable lens array
    Patent number: 9158120
    Abstract: An image display apparatus includes: an image display section that displays a two-dimensional image; and a variable lens array that includes a first substrate having a first electrode, a second substrate having a second electrode, and a liquid crystal layer which is disposed between the first substrate and the second substrate. The value of the refractive power of each lens line thereof is changed by a voltage which is applied between the first electrode and the second electrode. The variable lens array is disposed to be opposed to the image display section. Wall-shaped or columnar spacers are provided in a place, in which an orientation direction of liquid crystal molecules of the liquid crystal layer is unchanged when the value of the refractive power of each lens line thereof is changed, between the first substrate and the second substrate of the variable lens array.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: October 13, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Daisuke Takama, Takeo Koito
  • Display device
    Patent number: 9097901
    Abstract: A display device includes a display portion and an opening portion. In the display portion, pixels having different optical characteristics are arranged. The opening portion is arranged so as to face a display surface side of the display portion and causes a light from the display portion to pass in a predetermined direction. With respect to the pixels having the different optical characteristics in the display portion, the pixels having the same color are located in the opening portion.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: August 4, 2015
    Assignee: Japan Display Inc.
    Inventors: Takeo Koito, Daisuke Takama
  • DISPLAY DEVICE
    Publication number: 20150206501
    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: Application
    Filed: January 16, 2015
    Publication date: July 23, 2015
    Inventors: Hayato Kurasawa, Koji Ishizaki, Takeo Koito
  • DISPLAY DEVICE
    Publication number: 20150153578
    Abstract: A liquid crystal lens is formed with a first electrode formed on a first substrate and two or more second electrodes formed on a second substrate in a stripe pattern. Different voltages are applied to the second electrodes. The plurality of second electrodes exist at the boundary between a first liquid crystal lens and a second liquid crystal lens, and accept the maximum voltage of the different voltages. As a result, the liquid crystal lens can be moved in accordance with the movement of the visual line, the first and second liquid crystal lenses can be separated, and also a refractive index distribution of the liquid crystal lens can be close to a quadratic curve, thereby enabling to prevent the crosstalk.
    Type: Application
    Filed: November 25, 2014
    Publication date: June 4, 2015
    Inventors: Shinichiro OKA, Takeo KOITO, Yingbao YANG
  • Optical device, display device, electronic apparatus, manufacturing device and manufacturing method
    Patent number: 9046717
    Abstract: An optical device includes: at least two protrusions on a first substrate; a sealing material filled between the two protrusions; a second substrate attached so as to face and touch the first substrate through the sealing material; and a liquid crystal material injected between the first substrate and second substrate.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: June 2, 2015
    Assignee: Japan Display Inc.
    Inventors: Takeo Koito, Daisuke Takama
  • Liquid crystal display device and manufacturing method of liquid crystal display device
    Patent number: 9041886
    Abstract: Disclosed herein is a liquid crystal display device including a plurality of pixels each having a reflecting section and a transmitting section, the pixels each including a plurality of sub-pixels resulting from alignment division, the liquid crystal display device including: an element layer formed on a substrate; an insulating film formed on the substrate so as to cover the element layer; a pixel electrode formed on the insulating film so as to be connected to the element layer; a gap adjusting layer formed on the insulating film on the element layer including a region of connection between the element layer and the pixel electrode; and a dielectric formed on a connecting part for making an electric connection between the sub-pixels.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: May 26, 2015
    Assignee: Japan Display, Inc
    Inventors: Takeo Koito, Hiroshi Nishikawa
  • THREE DIMENSIONAL DISPLAY DEVICE
    Publication number: 20150138461
    Abstract: In a three dimensional display device of a parallax barrier system in which an IPS-mode liquid crystal display panel is used as a liquid crystal display panel for displaying images and a TN-mode liquid crystal panel is used as a parallax barrier panel, alignment axes of a counter substrate and a barrier substrate constituting the parallax barrier panel are set to 45 degrees and 135 degrees, respectively, with respect to a horizontal direction of a screen. This allows an improvement in the viewing angle characteristics of the parallax barrier panel and an improvement in the viewing characteristics of the overall three dimensional display device of the parallax barrier system. Thus, even when the line of sight moves, crosstalk between an image for a right eye and an image for a left eye can be prevented thereby allowing a viewer to recognize excellent three dimensional images.
    Type: Application
    Filed: November 17, 2014
    Publication date: May 21, 2015
    Inventors: Shinichiro OKA, Osamu ITOU, Takeo KOITO, Yingbao YANG, Tomoyuki TAKAHASHI, Shinichi KOMURA, Hiroki SUGIYAMA, Hideki KANEKO
  • LIQUID CRYSTAL DEVICE, ELECTRONIC APPARATUS, AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DEVICE
    Publication number: 20150138460
    Abstract: A liquid crystal device including: a first substrate, the first substrate being transparent; a second substrate disposed opposite the first substrate, the second substrate being transparent; a liquid crystal layer provided between the first substrate and the second substrate, the liquid crystal layer including liquid crystal molecules; an alignment film with alignment treatment such that the liquid crystal molecules align, the alignment film being provided on a surface of the first substrate, the surface facing the liquid crystal layer; and pillar spacers provided on the alignment film, wherein the alignment treatment is applied to the alignment film except at least a part of area in which each of the pillar spacers overlaps with the alignment film.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventors: Hiroki SUGIYAMA, Takeo KOITO
  • Display apparatus and electronic device
    Patent number: 9019324
    Abstract: Disclosed herein is a display apparatus including: a display section; and a light-beam control section configured to control a light beam coming from the display section or a light beam propagating to the display section; the display apparatus having a first display mode for displaying a plurality of observing-point images on the display section wherein the observing-point images include two or more first observing-point images, and one or a plurality of second observing-point images, and the number of pixels included in each of the second observing-point images is smaller than the number of pixels included in each of the first observing-point images.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: April 28, 2015
    Assignee: Japan Display Inc.
    Inventors: Takeo Koito, Daisuke Takama
  • DISPLAY PANEL AND DISPLAY DEVICE
    Publication number: 20150077380
    Abstract: A display panel includes a first substrate section formed on the front side of the display panel, a second substrate section which is opposed to the first substrate section, a plurality of pixel sections formed in a matrix form between the first and second substrate sections, and a plurality of sensor sections, each of the sensor sections having two electrodes, one electrode disposed with a electrode-to-electrode gap from the other between the first and second substrate sections, the electrode-to-electrode gap being removed as a result of the deformation of the first substrate section under pressure so that the one electrode is brought into contact with the other electrode, the sensor sections being provided between the first and second substrate sections with one of a plurality of electrode-to-electrode gap lengths respectively.
    Type: Application
    Filed: November 26, 2014
    Publication date: March 19, 2015
    Inventors: Shuji Hayashi, Tsutomu Tanaka, Takeo Koito, Hiroshi Muzuhashi, Yuko Yamauchi
  • Image display apparatus and variable lens array
    Patent number: 8953109
    Abstract: An image display apparatus including an image display section that displays a two-dimensional image; and a variable lens array that includes a first substrate having a first electrode, a second substrate having a second electrode, and a liquid crystal layer which is disposed between the first substrate and the second substrate. The value of the refractive power of each lens line thereof is changed by a voltage which is applied between the first electrode and the second electrode. The variable lens array is disposed to be opposed to the image display section. Wall-shaped or columnar spacers are provided in a place, in which an orientation direction of liquid crystal molecules of the liquid crystal layer is unchanged when the value of the refractive power of each lens line thereof is changed, between the first substrate and the second substrate of the variable lens array.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: February 10, 2015
    Assignee: Japan Display West Inc.
    Inventors: Daisuke Takama, Takeo Koito
  • Display panel and display device
    Patent number: 8928596
    Abstract: A display panel includes: a first substrate section formed on the front side of the display panel; a second substrate section which is opposed to the first substrate section; a plurality of pixel sections formed in a matrix form between the first and second substrate sections; and a plurality of sensor sections, each of the sensor sections having two electrodes, one electrode disposed with a electrode-to-electrode gap from the other between the first and second substrate sections, the electrode-to-electrode gap being removed as a result of the deformation of the first substrate section under pressure so that the one electrode is brought into contact with the other electrode, the sensor sections being provided between the first and second substrate sections with one of a plurality of electrode-to-electrode gap lengths respectively.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: January 6, 2015
    Assignee: Japan Display West Inc.
    Inventors: Shuji Hayashi, Tsutomu Tanaka, Takeo Koito, Hiroshi Muzuhashi, Yuko Yamauchi
  • DISPLAY DEVICE
    Publication number: 20140368622
    Abstract: According to an aspect, a display device includes: a display section; a barrier section in which a plurality of unit regions are arranged in columns in a first direction, the plurality of unit regions extending in a second direction perpendicular to the first direction; and a plurality of light shields disposed at regular intervals for the display section such that a transmittance of light transmitted through a unit region is kept substantially the same regardless of a position of the unit region through which light is transmitted in the barrier section.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 18, 2014
    Applicant: JAPAN DISPLAY INC.
    Inventors: Takeo Koito, Toshinori Uehara
  • Manufacturing apparatus, manufacturing method, optical element, display device, and electronic apparatus
    Patent number: 8908135
    Abstract: A manufacturing method includes providing a structural element that provides a predetermined gap between a first substrate and a second substrate to at least one of the first and second substrates, forming an alignment film on each of the first and second substrates, and subjecting the alignment film formed on each of the first and second substrates to a rubbing process. The structural element is formed after the alignment film is formed and before or after the rubbing process is performed.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: December 9, 2014
    Assignee: Japan Display West Inc.
    Inventors: Takeo Koito, Daisuke Takama
  • DISPLAY DEVICE WITH TOUCH DETECTING FUNCTION AND ELECTRONIC APPARATUS
    Publication number: 20140320760
    Abstract: According to an aspect, a display device with a touch detecting function includes: a display area in which pixels each composed of a plurality of color areas are arranged in a matrix; a touch detection electrode including a first conductive thin wire extending in a first direction; and a dummy electrode including a plurality of second conductive thin wires; a drive electrode having capacitance for the touch detection electrode. Each of the second conductive thin wires includes a plurality of thin wire pieces extending in a direction different from the first direction and is divided by a slit between the thin wire pieces. A color area in the display area with which the slit overlaps has a different color from a color area in the display area with which a slit closest to the slit in a second direction orthogonal to the first direction overlaps.
    Type: Application
    Filed: March 19, 2014
    Publication date: October 30, 2014
    Applicant: Japan Display Inc.
    Inventors: Koji ISHIZAKI, Hayato KURASAWA, Takeo KOITO
  • Liquid crystal optical device
    Patent number: 8860921
    Abstract: A liquid crystal optical device includes: a first substrate having transparent plural strip electrodes formed to make groups in respective given areas; a second substrate having a transparent common electrode; and a liquid crystal layer arranged between the first substrate and the second substrate, in which a retardation distribution is controlled in respective given areas according to voltages to be applied between the common electrode and the strip electrodes, wherein wall spacers are provided at portions corresponding to boundaries of given areas between the first substrate and the second substrate, and a shield electrode to which a fixed value voltage is applied is provided on at least one of two wall surfaces of each spacer.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: October 14, 2014
    Assignee: Japan Display West Inc.
    Inventors: Daisuke Takama, Takeo Koito, Tsuyoshi Ohyama
  • DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION AND ELECTRONIC APPARATUS
    Publication number: 20140293158
    Abstract: According to an aspect, a display device with a touch detection function includes a display area and a touch detection electrode that includes thin wire segments having first and second ends. Thin wire segments include a thin wire segment extending in a direction different from a pixel arrangement direction in which color regions having the highest human visibility are arranged. The second end is located away from the first end in a direction toward a target position that is distant from the first end in a pixel orthogonal direction by N times of a maximum length of one of the pixels in the pixel orthogonal direction, and in the pixel arrangement direction by M times of a maximum length of one of the pixels in the pixel arrangement direction. Each of N and M is an integer of 2 or larger. N and M are different from each other.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 2, 2014
    Applicant: JAPAN DISPLAY INC.
    Inventors: Hayato KURASAWA, Koji ISHIZAKI, Takeo KOITO