Patents by Inventor Koji Shigemura

Koji Shigemura 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: 20160351097
    Abstract: An image update determining unit compares a previously set temperature with a temperature estimated by a temperature increase estimating unit, and determines whether or not an image update operation is executable, and an image update interval is appropriately set according to the estimated temperature by performing image update on an image to be displayed next when the image update determining unit determines the image update operation to be executable but not performing image update when the image update determining unit determines the image update operation to be non-executable.
    Type: Application
    Filed: May 31, 2016
    Publication date: December 1, 2016
    Applicant: NLT Technologies, Ltd.
    Inventors: Tetsushi SATO, Kazunori MASUMURA, Koji SHIGEMURA
  • Patent number: 9411077
    Abstract: Provided are a lenticular lens sheet capable of simultaneously achieving an improvement in visibility due to improving bonding accuracy, and low cost due to shape stabilization during processing the lens, a display apparatus and an electronic equipment including the same. The lenticular lens sheet includes a plurality of cylindrical lenses which extend in a direction parallel to each other; and an alignment mark which has two cylindrical lenses among the plurality of cylindrical lenses, a flat part disposed between the two cylindrical lenses, and a structure which is disposed on the flat part and extends between the two cylindrical lenses.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: August 9, 2016
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventors: Jin Matsushima, Koji Shigemura
  • Publication number: 20160219260
    Abstract: A disclosed stereoscopic display device includes: a naked-eye stereoscopic display that projects respectively-different images into observer's left eye and right eye aligned in a first direction based on input images corresponding to two viewpoints; a flat-plate-shaped spatial imaging device that includes a plurality of optical reflection devices reflecting light transmitted from an object on a first reflection surface and a second reflection surface that are orthogonal to each other, the spatial imaging device emitting light that is emitted from the naked-eye stereoscopic display and is incident to an incident surface from an emission surface to an observer side; and an image processing unit that interchanges portions corresponding to reverse viewing areas in which depth parallax and popup parallax of the input images corresponding to the two viewpoints are reversed in a case where, in an image projecting one input image, an image projecting the other input image is mixed.
    Type: Application
    Filed: January 21, 2016
    Publication date: July 28, 2016
    Inventors: Tetsushi SATO, Koji SHIGEMURA
  • Patent number: 9398290
    Abstract: Provided is a stereoscopic image display device and the like with which the issues of a CT-image and pseudoscopic view by the 3D crosstalk can be overcome so that a sense of discomfort is not felt by the observer even when the observing position of the observer is shifted without giving a sense of discomfort by a drastic change in the parallax value, in which an image processing unit includes: a relative position calculating unit which calculates a relative position of a stereoscopic display panel with respect to the measured observing position of the observer; a parallax adjustment amount calculating unit which calculates a parallax adjustment amount suited for stereoscopic image display according to the relative position; and a parallax adjustment processing unit which performs parallax adjustment processing on image data according to the parallax adjustment amount.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: July 19, 2016
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventors: Takefumi Hasegawa, Koji Shigemura
  • Publication number: 20160182898
    Abstract: To provide a naked-eye type stereoscopic display device which can achieve a fine stereoscopic display property while achieving high-definition display and high yield. Aperture parts of sub-pixels neighboring to a first direction include overlapping regions which overlap in a second direction and a non-overlapping region which does not overlap. Provided that a width of the aperture part in the second direction is defined as a longitudinal aperture width, the non-overlapping region includes an aperture width fluctuating region where the longitudinal aperture width changes continuously from roughly a center of the aperture part towards both ends of the first direction, respectively. The sum of the longitudinal aperture widths of the two overlapping regions overlapping with each other at a same position in the first direction is larger than the longitudinal aperture width in roughly the center of the aperture part.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 23, 2016
    Applicant: NLT TECHNOLOGIES, LTD.
    Inventors: Takuya ASAI, Koji SHIGEMURA
  • Publication number: 20160182897
    Abstract: To provide a naked-eye type stereoscopic display device which can achieve a fine stereoscopic display property while achieving high-definition display and high yield. An aperture part includes overlapping regions which overlap with an aperture part or another aperture part neighboring to each other in a second direction and a non-overlapping region which does not overlap. Provided that a light amount emitted from a linear aperture of the aperture part in parallel to a second direction is “longitudinal light amount”, the non-overlapping region includes longitudinal light amount fluctuating regions where the longitudinal light amount changes continuously from roughly a center of the aperture part towards both ends of the first direction, respectively. The sum of the longitudinal light amounts of the two overlapping regions overlapping with each other at a same position in the first direction is larger than the longitudinal light amount in roughly the center of the aperture part.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 23, 2016
    Applicant: NLT TECHNOLOGIES, LTD.
    Inventors: Takuya ASAI, Koji SHIGEMURA
  • Patent number: 9280951
    Abstract: A stereoscopic image display device, with which the influence of a CT-image by the 3D crosstalk is lightened so that a sense of discomfort is not felt by the observer even when the observing position of the observer is shifted, includes an image processing unit including: a relative position calculating unit which calculates a relative position of a stereoscopic display panel with respect to the observing position of the observer; an image filter value calculating unit which calculates an image filter value for adjusting an image blurring amount according to the relative position; and an image filtering processing unit which performs image filtering processing on image data according to the image filter value.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: March 8, 2016
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventors: Takefumi Hasegawa, Koji Shigemura
  • Publication number: 20160018566
    Abstract: Provided are a lenticular lens sheet capable of simultaneously achieving an improvement in visibility due to improving bonding accuracy, and low cost due to shape stabilization during processing the lens, a display apparatus and an electronic equipment including the same. The lenticular lens sheet includes a plurality of cylindrical lenses which extend in a direction parallel to each other; and an alignment mark which has two cylindrical lenses among the plurality of cylindrical lenses, a flat part disposed between the two cylindrical lenses, and a structure which is disposed on the flat part and extends between the two cylindrical lenses.
    Type: Application
    Filed: July 15, 2015
    Publication date: January 21, 2016
    Applicant: NLT TECHNOLOGIES, LTD.
    Inventors: Jin MATSUSHIMA, Koji SHIGEMURA
  • Publication number: 20160007011
    Abstract: A stereoscopic image display device includes sub-pixels corresponding to N-viewpoints (N is a natural number of 3 or higher), wherein: an “X?1”th viewpoint sub-pixel is connected to an image signal source via a corresponding signal line; an “X+1”th viewpoint sub-pixel is connected to the image signal source via a signal line that is different from the signal line corresponding to the “X?1”th viewpoint sub-pixel; voltages corresponding to a prescribed image signal are written and held to the “X?1”th viewpoint sub-pixel and the “X+1”th viewpoint sub-pixel; and a voltage generated by a pixel voltage generating module by using the voltages written to the “X?1”th viewpoint sub-pixel and to the “X+1”th viewpoint sub-pixel is written to the Xth-viewpoint sub-pixel.
    Type: Application
    Filed: July 1, 2015
    Publication date: January 7, 2016
    Inventors: Yoshihiro NONAKA, Takefumi HASEGAWA, Koji SHIGEMURA
  • Patent number: 9217872
    Abstract: A display apparatus includes: a liquid crystal display element in which a plurality of display units including at least a pixel that displays an image for a first eyepoint and a pixel that displays an image for a second eyepoint are arranged in a matrix shape; an optical unit which distributes light emitted from the pixel that displays the image for the first eyepoint and light emitted from the pixel that displays the image for the second eyepoint in mutually different directions; a first control electrode and a second control electrode disposed on each pixel in the display units; and a plurality of domain regions of which the orientation is controlled by a diagonal electric field or a lateral electric field formed by the first control electrode and the second control electrode and which have different liquid crystal molecule orientation states.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: December 22, 2015
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventors: Shinya Niioka, Koji Shigemura
  • Publication number: 20150355472
    Abstract: An image display device includes a display element having a unit of display comprising sub pixels displaying images for first and second view points, respectively, and an optical unit that distributes lights emitted from respective sub pixels into different directions. When a region surrounded by a data line, a gate line and a storage capacitor electrode in the sub pixel is defined as an aperture, the sub pixels form a base unit that is an adjoining pixel pair including two sub pixels arranged via a data line therebetween. The two sub pixels have switching elements connected to the data line between the two sub pixels and controlled by different gate lines. When virtual lines each evenly dividing a width of the sub pixel in the first direction into K+1 pieces are presumed, K number of storage capacitor lines are each arranged across at least one virtual line in the aperture.
    Type: Application
    Filed: August 18, 2015
    Publication date: December 10, 2015
    Applicant: NLT TECHNOLOGIES, LTD.
    Inventors: Shinya NIIOKA, Koji SHIGEMURA
  • Patent number: 9204133
    Abstract: Provided is a stereoscopic display device provided with a stereoscopic display panel and a display controller, the stereoscopic display panel including a lenticular lens, a color filter substrate, a TFT substrate, etc. Unit pixels arranged in a horizontal direction parallel to the direction in which both eyes of viewer are arranged are alternately used as left-eye pixels and right-eye pixels. The display controller determined, according to temperature information from a temperature sensor, the contraction/expansion of the lens by a stereoscopic image generating module and generates 3D image data for driving the display panel in which the amount of disparity in a specific disparity direction is corrected on the basis of parameter information defined by an effective linear expansion coefficient inherent in the stereoscopic display panel, or the like and the magnitude of the temperature to thereby ensure a predetermined stereoscopic visual recognition range even when the lens are contracted/expanded.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: December 1, 2015
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventors: Koji Shigemura, Di Wu, Michiaki Sakamoto
  • Publication number: 20150338669
    Abstract: Movement of a display device is detected, and an image is displayed in stereoscopic display or planar display depending on the detected movement.
    Type: Application
    Filed: August 3, 2015
    Publication date: November 26, 2015
    Applicants: NLT TECHNOLOGIES, LTD., NEC CORPORATION
    Inventors: Tetsusi SATO, Koji SHIGEMURA, Masahiro SERIZAWA
  • Publication number: 20150331154
    Abstract: A lenticular lens sheet produced by patterning a UV curable resin on one surface of a conventional glass substrate has a problem of the reliability of the UV curable resin. Additionally, stress generated by the UV curable resin causes warpage in production and use of a display device. [Means of Solving the Problems] The present invention provides an optical element that includes a substrate and a resin and satisfies the following formula: RTmax/RTmin?9/5??Formula (1) wherein RTmin represents the resin thickness at the thinnest regions of a major patterned component that is made of the resin, RTmax represents the resin thickness at the thickest regions of the major patterned component that is made of the resin, and T represents the thickness of the substrate.
    Type: Application
    Filed: May 19, 2015
    Publication date: November 19, 2015
    Applicant: NLT TECHNOLOGIES, LTD.
    Inventors: Jin MATSUSHIMA, Koji SHIGEMURA
  • Patent number: 9188823
    Abstract: An image display device includes a display element having a unit of display comprising sub pixels displaying images for first and second view points, respectively, and an optical unit that distributes lights emitted from respective sub pixels into different directions. When a region surrounded by a data line, a gate line and a storage capacitor electrode in the sub pixel is defined as an aperture, the sub pixels form a base unit that is an adjoining pixel pair including two sub pixels arranged via a data line therebetween. The two sub pixels have switching elements connected to the data line between the two sub pixels and controlled by different gate lines. When virtual lines each evenly dividing a width of the sub pixel in the first direction into K+1 pieces are presumed, K number of storage capacitor lines are each arranged across at least one virtual line in the aperture.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: November 17, 2015
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventors: Shinya Niioka, Koji Shigemura
  • Patent number: 9176326
    Abstract: A display apparatus includes: a liquid crystal display element in which a plurality of display units including at least a pixel that displays an image for a first eyepoint and a pixel that displays an image for a second eyepoint are arranged in a matrix shape; an optical unit which distributes light emitted from the pixel that displays the image for the first eyepoint and light emitted from the pixel that displays the image for the second eyepoint in mutually different directions; a first control electrode and a second control electrode disposed on each pixel in the display units; and a plurality of domain regions of which the orientation is controlled by a diagonal electric field or a lateral electric field formed by the first control electrode and the second control electrode and which have different liquid crystal molecule orientation states.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: November 3, 2015
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventors: Shinya Niioka, Koji Shigemura
  • Publication number: 20150312546
    Abstract: The stereoscopic image display device displaying a stereoscopic image by being placed on a movable object includes: a stereoscopic display panel module which projects images of different parallaxes for each of neighboring spatial regions; a movable object state detecting module which detects state information regarding a position state of the movable object; an observing distance calculation module which calculates a relative distance between the stereoscopic display panel module and a specific observer located on a display surface side thereof based on the state information; a device characteristic data saving module which saves device characteristic data regarding the stereoscopic display panel module; and a display setting adjusting module which adjusts display setting of the stereoscopic image by referring to the relative distance and the device characteristic data.
    Type: Application
    Filed: April 23, 2015
    Publication date: October 29, 2015
    Applicant: NLT TECHNOLOGIES, LTD.
    Inventors: Takefumi HASEGAWA, Koji SHIGEMURA
  • Publication number: 20150253580
    Abstract: To provide a substrate laminating apparatus and a substrate laminating method capable of laminating two substrates highly precisely while achieving low cost and saving space. The substrate laminating apparatus includes an upper-substrate camera group provided to a lower vacuum chamber for capturing an image of an upper substrate fixed to an upper vacuum chamber. The upper-substrate camera group captures images of a first upper-substrate alignment mark and a second upper-substrate alignment mark of the upper substrate fixed to the upper vacuum chamber by actions synchronized with the lower vacuum chamber. Thereby, it is possible to save the space and to lower the cost by reducing the number of mechanical components.
    Type: Application
    Filed: March 6, 2015
    Publication date: September 10, 2015
    Applicant: NLT TECHNOLOGIES, LTD.
    Inventors: Tetsuroh ASAKURA, Koji SHIGEMURA
  • Patent number: 9122064
    Abstract: Movement of a display device is detected, and an image is displayed in stereoscopic display or planar display depending on the detected movement.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: September 1, 2015
    Assignees: NEC CORPORATION, NLT TECHNOLOGIES, LTD.
    Inventors: Tetsusi Sato, Koji Shigemura, Masahiro Serizawa
  • Patent number: 9025116
    Abstract: A liquid-crystal display device makes it possible to attach an optical element to a liquid-crystal display panel with high positional accuracy while avoiding or minimizing the enlargement of the picture-frame region (i.e., the non-display region) induced by the formation of markers on the panel and the increase of the fabrication cost. The panel comprises a main substrate, an opposite substrate, and a liquid crystal enclosed in a gap between the main and opposite substrates, wherein a polarizer plate is attached at least to the opposite substrate. Markers for attaching an optical element to the panel are formed at positions that overlap with the polarizer plate in a non-display region on the main or opposite substrate. Alignment direction regulators regulate the alignment of the liquid crystal molecules to a predetermined direction in the vicinities of the markers, allowing light to pass through at least the opposite substrate.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: May 5, 2015
    Assignee: NLT Technologies, Ltd.
    Inventors: Tsutomu Hiroya, Koji Shigemura, Jin Matsushima