Patents by Inventor Yuzo Hirayama

Yuzo Hirayama 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: 9237335
    Abstract: In an image display apparatus, the sub-pixel areas which are correspondingly assigned to the optical apertures are defined according to an observation position of a viewer, and the sub-pixel areas includes sub-pixel segments into which the sub-pixel positioned at a boundary between adjacent sub-pixel areas is separated. The sub-pixel segments correspond to the adjacent sub-pixel areas and are observed via adjacent optical openings. The sub-pixel display information obtained by mixing parallax information belonging to the adjacent sub-pixel areas is displayed in the sub-pixel including the adjacent sub-pixel segment.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: January 12, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Rieko Fukushima, Yuzo Hirayama, Norihiro Nakamura
  • Patent number: 9110297
    Abstract: According to an embodiment, the display unit includes pixels, each pixel includes sub-pixels having different colors, arranged in a matrix in a first direction and in a second direction substantially orthogonal to the first direction. The light beam controller faces the display unit, extends in a third direction making an angle smaller than 90° with the second direction, includes light beam control elements periodically arranged at a first pitch in the first direction and at a second pitch in the second direction, and can control direction of light beams from the display unit. The first and second pitches make a substantially equilateral triangle by joining the nearest same-color sub-pixels. When “s” represents the number of the sub-pixels included in the pixels along the first direction, the first pitch is 5/s or greater of a third pitch of each pixel.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: August 18, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Rieko Fukushima, Yuzo Hirayama
  • Patent number: 8964006
    Abstract: A three-dimensional display apparatus according to an embodiment includes: a display unit including pixels arranged in a matrix form; and an optical plate opposed to the display unit, the optical plate functioning as a plurality of optical apertures which are extended nearly in a straight line manner in a second direction and arranged in a first direction. Each of the pixels is divided into M sub-pixels respectively comprising M color components arranged in the first direction where M is an integer of at least 1, and Q/B is an integer N, M×P/A is a non-integer, and (Q/B)/(P/A) is a non-integer, where P is a period of the optical apertures in the first direction, Q is a period of the optical apertures in the second direction, A is a period of the pixels in the first direction, and B is a period of the pixels in the second direction.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: February 24, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tatsuo Saishu, Yuzo Hirayama
  • Patent number: 8766882
    Abstract: In an apparatus for displaying a three-dimensional image, sub-pixels having color components are arranged in a longitudinal direction and in a lateral direction in a matrix form, in a display section for displaying a flat image, and a light ray control element is disposed so as to be opposed to the display section. In the light ray control element, linear optical openings extending in a vertical direction are arranged in the lateral direction. A sum of opening area lengths of opening areas of a plurality of sub-pixels adjacent to each other in a horizontal direction is varied in a single row, and the sum thereof in a plurality of rows becomes constant. Further, an arrangement of the sub-pixels is a color arrangement of a mosaic arrangement or a lateral stripe arrangement.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: July 1, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Rieko Fukushima, Yuzo Hirayama, Kazuki Taira, Tatsuo Saishu
  • Patent number: 8614738
    Abstract: In a stereoscopic image imaging method which captures an image of an object to be displayed as a stereoscopic image, a three-dimensional image is generated in real time from multi-viewpoint images captured by a multi-camera, and is displayed on a viewer provided to the multi-camera, thus allowing a photographer to adjust an imaging condition. The photographer is informed of parameters, which implements a display state adjusted by an observer of a three-dimensional display while observing the three-dimensional image, via the viewer, and the photographer can capture appropriate multi-viewpoint images.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: December 24, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Rieko Fukushima, Akira Morishita, Yoshiyuki Kokojima, Yuzo Hirayama
  • Patent number: 8582042
    Abstract: Certain embodiments provide a display device a plurality of subpixels arranged in a first direction and a second direction perpendicular to the first direction to form a matrix, and each having an aperture provided with a color component; and an optical controller provided to be opposed to the display device having a plurality of rectilinear optical apertures extending in the second direction are arranged in the first direction. A shape of the aperture in the subpixel is depending upon a condition that the apertures in the subpixels adjacent to each other in the first direction have a nonoverlapping region which is a nonoverlapping region in the second direction and a condition that an aperture ratio indicating a ratio of the aperture to the subpixel in length in the second direction is substantially constant in one line in the second direction irrespective of a position in the first direction.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: November 12, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masako Kashiwagi, Tatsuo Saishu, Rieko Fukushima, Yuzo Hirayama, Yoshiharu Momonoi, Ayako Takagi
  • Publication number: 20130286476
    Abstract: According to an embodiment, the display unit includes pixels, each pixel includes sub-pixels having different colors, arranged in a matrix in a first direction and in a second direction substantially orthogonal, to the first direction. The light beam controller faces the display unit, extends in a third direction making an angle smaller than 90° with the second direction, includes light beam control elements periodically arranged at a first pitch in the first direction and at a second pitch in the second direction, and can control direction of light beams from the display unit. The first and second pitches make a substantially equilateral triangle by Mining the nearest same-color sub-pixels. When “s” represents the number of the sub-pixels included in the pixels along the first direction, the first pitch is 5/s or greater of a third pitch of each pixel.
    Type: Application
    Filed: March 1, 2013
    Publication date: October 31, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Rieko FUKUSHIMA, Yuzo Hirayama
  • Patent number: 8552925
    Abstract: When displaying one of a three-dimensional image and a two-dimensional image on a background and displaying the other image in a window, a flag bit indicating whether the first and second electrodes overlap the window is set. Waveforms differing according to the flag bit are applied to the first and second electrodes as pulses applied to the opposed first and second electrodes of a variable polarization cell. As a result, three-dimensional image display is partially conducted in the window and two-dimensional image display is conducted in areas other than the window. Or two-dimensional image display is partially conducted in the window and three-dimensional image display is conducted in areas other than the window.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: October 8, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ayako Takagi, Shunichi Numazaki, Hitoshi Kobayashi, Tatsuo Saishu, Yuzo Hirayama
  • Patent number: 8531454
    Abstract: Certain embodiments provide a display apparatus including: a selection unit configured to make a selection as to which image in images shot by which virtual cameras should be displayed on which subpixel based on the viewing position and the number of parallaxes which can be displayed; a generation unit configured to dispose the virtual camera on the coordinates of the virtual cameras in the CG space, shoot a drawing object in the CG space, and generate an elemental image based on a shot multiple viewpoint image and the selection result in the selection unit; a display unit configured to display a stereoscopic image based on the elemental image; and an optical plate configured to control light rays illuminated from the display unit to make it possible for the viewer to conduct stereoscopic viewing with a light ray interval which is wider than the shooting interval.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: September 10, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Rieko Fukushima, Yoshiyuki Kokojima, Sumihiko Yamamoto, Akira Morishita, Yuzo Hirayama
  • Publication number: 20130188253
    Abstract: According to one embodiment, a substrate with an interference filter layer includes a plate-like first substrate and a filter layer. The filter layer includes optically semi-transparent first and second reflective layers and a light-transmitting layer, the light-transmitting layer being formed of first, second, and third spacer layers, the first, second, and third spacer layers being optically transparent, the light-transmitting layer including first, second, and third areas which include the first spacer layer in common, the first, second, and third areas having different optical film thicknesses due to the second and the third spacer layers, the first, second, and the third areas transmitting light with different wavelengths.
    Type: Application
    Filed: July 20, 2012
    Publication date: July 25, 2013
    Inventors: Yutaka NAKAI, Tomio Ono, Yoshinori Honguh, Hideki Nukada, Yuzo Hirayama, Hitoshi Nagato, Takashi Miyazaki
  • Patent number: 8427532
    Abstract: A three-dimensional image display apparatus displays element images each composed of a set of parallax component images. An exit pupil array is located opposite the display surface. Exit pupils of the array correspond to the respective element images. The horizontal pitch of the exit pupils or an integral multiple of the horizontal pitch is set equal or slightly smaller than an integral multiple of the horizontal pitch of pixels. The parallax component images are oriented in different directions via the exit pupil. Principal beams from the parallax component images via the exit pupils are emitted substantially parallel to one another. The element image contains substantially the same parallax image component in two pixel areas in which two adjacent parallax image components are otherwise displayed. The same parallax image component is oriented in different directions via the corresponding exit pupil.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: April 23, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Rieko Fukushima, Tatsuo Saishu, Yuzo Hirayama
  • Publication number: 20130050815
    Abstract: According to an embodiment, there is provided a 3D image display apparatus provided with a display unit and a control element arranged to oppose the display unit. The control element has a number of optical apertures linearly extended and tilted at an angle ? with respect to a linearly extending direction. The sub-pixel have one of first and second patterns defined by an aperture and a light-shielding portion. The sub-pixels of an identical color are arrayed to alternately have the first and second patterns or the second and first patterns along the second direction, and the sub-pixels are arrayed so as to mutually give at least one of no line-symmetry relationship and no point-symmetry relationship.
    Type: Application
    Filed: February 23, 2012
    Publication date: February 28, 2013
    Inventors: Rieko FUKUSHIMA, Yuzo Hirayama, Shinichi Uehara, Masahiro Baba
  • Publication number: 20130050594
    Abstract: According to one embodiment, a three-dimensional image display apparatus includes a display unit and liquid crystal lenses. A plurality of sub-pixels may be arrayed in a matrix in a first direction and a second direction in the display unit. The liquid crystal lenses may be arrayed in the first direction at not more than a horizontal pitch p, which is expressed by: p = 3 × N × 3 - 1 3 ? ? ( unit ? : ? a ? ? sub ? - ? pixel ? ? width ) where N is the number of parallaxes.
    Type: Application
    Filed: January 27, 2012
    Publication date: February 28, 2013
    Inventors: Yuzo HIRAYAMA, Rieko FUKUSHIMA, Tatsuo SAISHU
  • Publication number: 20120249530
    Abstract: In an image display apparatus, the sub-pixel areas which are correspondingly assigned to the optical apertures are defined according to an observation position of a viewer, and the sub-pixel areas includes sub-pixel segments into which the sub-pixel positioned at a boundary between adjacent sub-pixel areas is separated. The sub-pixel segments correspond to the adjacent sub-pixel areas and are observed via adjacent optical openings. The sub-pixel display information obtained by mixing parallax information belonging to the adjacent sub-pixel areas is displayed in the sub-pixel including the adjacent sub-pixel segment.
    Type: Application
    Filed: February 24, 2012
    Publication date: October 4, 2012
    Inventors: Rieko FUKUSHIMA, Yuzo Hirayama, Norihiro Nakamura
  • Publication number: 20120242661
    Abstract: When displaying one of a three-dimensional image and a two-dimensional image on a background and displaying the other image in a window, a flag bit indicating whether the first and second electrodes overlap the window is set. Waveforms differing according to the flag bit are applied to the first and second electrodes as pulses applied to the opposed first and second electrodes of a variable polarization cell. As a result, three-dimensional image display is partially conducted in the window and two-dimensional image display is conducted in areas other than the window. Or two-dimensional image display is partially conducted in the window and three-dimensional image display is conducted in areas other than the window.
    Type: Application
    Filed: April 20, 2012
    Publication date: September 27, 2012
    Inventors: Ayako Takagi, Shunichi Numazaki, Hitoshi Kobayashi, Talsuo Saishu, Yuzo Hirayama
  • Publication number: 20120229610
    Abstract: In a stereoscopic image imaging method which captures an image of an object to be displayed as a stereoscopic image, a three-dimensional image is generated in real time from multi-viewpoint images captured by a multi-camera, and is displayed on a viewer provided to the multi-camera, thus allowing a photographer to adjust an imaging condition. The photographer is informed of parameters, which implements a display state adjusted by an observer of a three-dimensional display while observing the three-dimensional image, via the viewer, and the photographer can capture appropriate multi-viewpoint images.
    Type: Application
    Filed: March 27, 2012
    Publication date: September 13, 2012
    Inventors: Rieko FUKUSHIMA, Akira Morishita, Yoshiyuki Kokojima, Yuzo Hirayama
  • Publication number: 20120200677
    Abstract: A three-dimensional display apparatus according to an embodiment includes: a display unit including pixels arranged in a matrix form; and an optical plate opposed to the display unit, the optical plate functioning as a plurality of optical apertures which are extended nearly in a straight line manner in a second direction and arranged in a first direction. Each of the pixels is divided into M sub-pixels respectively comprising M color components arranged in the first direction where M is an integer of at least 1, and Q/B is an integer N, M×P/A is a non-integer, and (Q/B)/(P/A) is a non-integer, where P is a period of the optical apertures in the first direction, Q is a period of the optical apertures in the second direction, A is a period of the pixels in the first direction, and B is a period of the pixels in the second direction.
    Type: Application
    Filed: September 13, 2011
    Publication date: August 9, 2012
    Inventors: Tatsuo SAISHU, Yuzo HIRAYAMA
  • Publication number: 20120182611
    Abstract: According to one embodiment, in a three-dimensional image display apparatus, a light-ray control unit is so arranged as to face a display unit. The light-ray control unit includes a plurality of optical apertures each having an extending direction. The optical apertures are substantially linearly extended along the extending direction and are substantially arranged in a direction normal to the extending direction. The extending direction is so inclined with respect to the second direction as to have an inclination angle which is selected within one of a first range from arctan(5+?) to arctan(5+?), a second range from arctan(5+?) to arctan(5+?), and a third range from arctan(6+?) to arctan(6+?).
    Type: Application
    Filed: January 13, 2012
    Publication date: July 19, 2012
    Inventors: Rieko FUKUSHIMA, Yuzo Hirayama
  • Publication number: 20120176423
    Abstract: According to one embodiment, a display device includes an optical switch panel, and a light source device. The optical switch panel includes pixels and a drive part controlling transmissivity of the pixels. The light source device is stacked with the panel and includes a light source to emit a source light, a light guiding unit, interference filters, and light controlling parts. The light guiding unit includes a light guide region guiding the source light, a reflecting part provided around the region to reflect the source light, and apertures provided around the region and causing semi-collimated light to be emitted. The interference filters cause lights in certain wavelength dands of the light emitted from the aperture to pass. The light controlling parts cause the lights through the filters to enter the pixels to form an image.
    Type: Application
    Filed: March 19, 2012
    Publication date: July 12, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hitoshi NAGATO, Takashi MIYAZAKI, Yutaka NAKAI, Tomio ONO, Yoshinori HONGUH, Hideki NUKADA, Yuzo HIRAYAMA, Hajime YAMAGUCHI
  • Publication number: 20120169731
    Abstract: A three-dimensional image display apparatus displays element images each composed of a set of parallax component images. An exit pupil array is located opposite the display surface. Exit pupils of the array correspond to the respective element images. The horizontal pitch of the exit pupils or an integral multiple of the horizontal pitch is set equal or slightly smaller than an integral multiple of the horizontal pitch of pixels. The parallax component images are oriented in different directions via the exit pupil. Principal beams from the parallax component images via the exit pupils are emitted substantially parallel to one another. The element image contains substantially the same parallax image component in two pixel areas in which two adjacent parallax image components are otherwise displayed. The same parallax image component is oriented in different directions via the corresponding exit pupil.
    Type: Application
    Filed: March 8, 2012
    Publication date: July 5, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Rieko FUKUSHIMA, Tatsuo SAISHU, Yuzo HIRAYAMA