Patents by Inventor Kazuki Taira

Kazuki Taira 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: 20090051685
    Abstract: A stereoscopic image display apparatus includes: a plane display device including a display panel formed of pixels arranged in a matrix form and an image display controller controlling an image displayed on the display panel; an optical plate including a plurality of lenses provided in front of the display panel and controlling light rays illuminated from the pixels; a display mode selector selecting one of stereoscopic image display and two-dimensional image display as a display mode; an analyzer analyzing image information contained in a two-dimensional image displayed based on a display information and determine whether to process the two-dimensional image when two-dimensional image display as a display mode be selected; and an image processor processing the two-dimensional image based on a result of the analysis conducted by the analyzer, sending the processed two-dimensional image to the image display controller, and causing the image display controller to display the processed two-dimensional image on t
    Type: Application
    Filed: August 7, 2008
    Publication date: February 26, 2009
    Inventors: Ayako Takagi, Kazuki Taira, Tatsuo Saishu, Hitoshi Kobayashi, Yoshiharu Momonoi, Yuzo Hirayama
  • Patent number: 7495634
    Abstract: A three-dimensional display apparatus is provided with an optical element including optical apertures arranged opposite a display module and in association with the parallax images. The optical apertures cause the parallax images to be displayed in a near-side region closer to an observer, while causing a three-dimensional image to be displayed in a far-side region located opposite the observer with respect to the display module. When a smooth three-dimensional image is to be displayed in the near-side region, the optical gap between the optical element and the display surface is set longer than a reference distance depending on the position of the three-dimensional image. In order to display a smooth three-dimensional image in the far-side region, the observer sets the optical gap shorter than the reference distance depending on the position of the three-dimensional image.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: February 24, 2009
    Assignee: Kabushik Kaisha Toshiba
    Inventors: Ayako Takagi, Tatsuo Saishu, Kazuki Taira, Yuzo Hirayama
  • Patent number: 7486817
    Abstract: An apparatus includes a stereoscopic display region calculator calculating a stereoscopic display region to reproduce a three-dimensional positional relationship in image data displayed on a stereoscopic display device, based on two-dimensional or three-dimensional image data, a position of a target of regard of a virtual camera set in processing of rendering the image data, and orientations of the light beams output from the stereoscopic display device. The apparatus also includes an image processor performing image processing on image data outside a region representing the outside of the stereoscopic display region calculated by the stereoscopic display region calculator. The image processing is different from image processing on image data inside a region representing the inside of the stereoscopic display region. The apparatus also includes an image generator generating stereoscopic display image data from the two-dimensional or three-dimensional image data after processed by the image processor.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: February 3, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shingo Yanagawa, Yasunobu Yamauchi, Kazuki Taira, Rieko Fukushima, Yuzo Hirayama
  • Publication number: 20090002262
    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: Application
    Filed: August 29, 2008
    Publication date: January 1, 2009
    Inventors: Rieko FUKUSHIMA, Yuzo Hirayama, Kazuki Taira, Tatsuo Saishu
  • Publication number: 20090002483
    Abstract: An apparatus includes a stereoscopic display region calculator calculating a stereoscopic display region to reproduce a three-dimensional positional relationship in image data displayed on a stereoscopic display device, based on two-dimensional or three-dimensional image data, a position of a target of regard of a virtual camera set in processing of rendering the image data, and orientations of the light beams output from the stereoscopic display device. The apparatus also includes an image processor performing image processing on image data outside a region representing the outside of the stereoscopic display region calculated by the stereoscopic display region calculator. The image processing is different from image processing on image data inside a region representing the inside of the stereoscopic display region. The apparatus also includes an image generator generating stereoscopic display image data from the two-dimensional or three-dimensional image data after processed by the image processor.
    Type: Application
    Filed: August 28, 2008
    Publication date: January 1, 2009
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Shingo Yanagawa, Yasunobu Yamauchi, Kazuki Taira, Rieko Fukushima, Yuzo Hirayama
  • Publication number: 20080309663
    Abstract: An apparatus is provided with a display unit and a optical filter. The unit has pixels arranged in a matrix form, which are groped into a first group and second groups to display two-dimensional image information constituting elemental images, the image information being obtained from different directions. The optical filter has a first optical opening opposed to the first pixel group and second optical openings opposed to corresponding one of the second pixel groups. The center of the first pixel group is coincident with the axis of the first opening, each center of the second pixel groups is deviated from corresponding one of the second opening axe, and the deviation is gradually increased depending on a distance between the first and the second pixel group centers. The light rays are directed to a reference plane from the first and second pixel groups through the first and second opening axes.
    Type: Application
    Filed: August 13, 2008
    Publication date: December 18, 2008
    Inventors: Rieko FUKUSHIMA, Yuzo Hirayama, Kazuki Taira
  • Patent number: 7453637
    Abstract: A projection type screen comprises a reflection surface array and a lenticular sheet. In the reflection surface array, a plurality of reflection surfaces is located along a horizontal direction. Each reflection surface has a mirror reflectivity of which section along the horizontal direction is quadratic curve shape. The lenticular sheet is located at an incident side of a projection light for the reflection surface array. The lenticular sheet has diffusivity along a vertical direction.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: November 18, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuki Taira, Yuzo Hirayama
  • Patent number: 7433110
    Abstract: A three-dimensional input apparatus includes a lens L1 for converting angular information about light rays from a object, a focusing element L3 for focusing the light rays from the object to the vicinities of an array R of photoelectric elements, and a lens L2 for performing conversion into a real image near the surface of the focusing element L3. The lens L2 is present between the lens L1 and focusing element L3. The array R records light as image signal sequentially. A driver portion drives the optical system and scans light ray information about the object.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: October 7, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshiharu Momonoi, Kazuki Taira
  • Publication number: 20080225113
    Abstract: A three-dimensional image display device includes a display section having pixels arranged in a matrix and each includes three color component sub-pixels arranged in vertical stripes, and a light beam control element installed opposite the display section and having optical apertures arranged in a substantially horizontal direction and extending linearly in a direction inclined at an angle atan (1/n) (n=4 or 5) to a direction of pixel columns. The average value of the horizontal pitch of element images displayed in the display section is specified to be equal to or greater than natural number m times as large as a pixel horizontal pitch (m<n). The horizontal pitch of the light beam control elemental is specified to be equal to or smaller than natural number m times as large as the pixel horizontal pitch.
    Type: Application
    Filed: January 29, 2008
    Publication date: September 18, 2008
    Inventors: Tatsuo Saishu, Rieko Fukushima, Kazuki Taira, Yuzo Hirayama
  • Patent number: 7425951
    Abstract: An apparatus is provided with a display unit and a optical filter. The unit has pixels arranged in a matrix form, which are grouped into a first group and second groups to display two-dimensional image information constituting elemental images, the image information being obtained from different directions. The optical filter has a first optical opening opposed to the first pixel group and second optical openings opposed to corresponding one of the second pixel groups. The center of the first pixel group is coincident with the axis of the first opening, each center of the second pixel groups is deviated from corresponding one of the second opening axe, and the deviation is gradually increased depending on a distance between the first and the second pixel group centers. The light rays are directed to a reference plane from the first and second pixel groups through the first and second opening axes.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: September 16, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Rieko Fukushima, Yuzo Hirayama, Kazuki Taira
  • Publication number: 20080211736
    Abstract: A three-dimensional image display apparatus includes an image display configured to output image light which arrays a plurality of pixels and has polarization, a lens array arranged in front of the image display, configured to function as lens at light which has a 1st polarization direction, and not to function as lens at light which has a 2nd polarization direction differed from the 1st polarization direction, and a birefringent phase modulator placed between the image display and the lens array and configured to rotate a polarization plane of the image light.
    Type: Application
    Filed: January 2, 2008
    Publication date: September 4, 2008
    Inventors: Kazuki Taira, Yuzo Hirayama, Tatsuo Saishu, Rieko Fukushima, Ayako Takagi
  • Publication number: 20080079662
    Abstract: A stereoscopic display apparatus includes a display having pixels arrayed in a longitudinal direction and a lateral direction to form a matrix, each pixel including sub-pixels with color components, and a control element opposed to the display and having linear openings extending in the longitudinal direction and arrayed in the lateral direction. The openings of any two sub-pixels adjacent in the lateral direction always overlap regardless of a position in the lateral direction. The sum of the longitudinal components of the opening ratios of s adjacent in the lateral direction is constant.
    Type: Application
    Filed: April 20, 2007
    Publication date: April 3, 2008
    Inventors: Tatsuo Saishu, Rieko Fukushima, Kazuki Taira, Yuzo Hirayama
  • Publication number: 20080080048
    Abstract: A lens array includes a glass substrate, a lens array layer, and a flat layer. The lens array layer and the flat layer are made of a resin material thinner than the glass substrate and have generally the same thickness. The lens array layer and the flat layer are adhered to the two sides of the glass substrate through adhesive layers to oppose each other through the glass substrate.
    Type: Application
    Filed: September 21, 2007
    Publication date: April 3, 2008
    Inventors: Tatsuo Saishu, Kazuki Taira, Yoshiharu Momonoi, Ryoichi Watanabe, Takashi Sasabayashi, Masahiko Tomikawa, Masaki Obi
  • Patent number: 7345654
    Abstract: A three-dimensional image display apparatus includes an image display configured to output image light which arrays a plurality of pixels and has polarization, a lens array arranged in front of the image display, configured to function as lens at light which has a 1st polarization direction, and not to function as lens at light which has a 2nd polarization direction differed from the 1st polarization direction, and a birefringent phase modulator placed between the image display and the lens array and configured to rotate a polarization plane of the image light.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: March 18, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuki Taira, Yuzo Hirayama, Tatsuo Saishu, Rieko Fukushima, Ayako Takagi
  • Patent number: 7295173
    Abstract: An image display method including dividing an original image for one frame period into a plurality of subfield images, arranging the subfield images in a direction of a time axis in an order of brightness of the subfield images, and displaying the arranged subfield images in the order of the brightness.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: November 13, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Goh Itoh, Masahiro Baba, Kazuki Taira, Haruhiko Okumura
  • Patent number: 7250923
    Abstract: A three-dimensional image display apparatus includes an image display configured to output image light which arrays a plurality of pixels and has polarization, a lens array arranged in front of the image display, configured to function as lens at light which has a 1st polarization direction, and not to function as lens at light which has a 2nd polarization direction differed from the 1st polarization direction, and a birefringent phase modulator placed between the image display and the lens array and configured to rotate a polarization plane of the image light.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: July 31, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuki Taira, Yuzo Hirayama, Tatsuo Saishu, Rieko Fukushima, Ayako Takagi
  • Publication number: 20070146234
    Abstract: A three-dimensional image display apparatus includes an image display configured to output image light which arrays a plurality of pixels and has polarization, a lens array arranged in front of the image display, configured to function as lens at light which has a 1st polarization direction, and not to function as lens at light which has a 2nd polarization direction differed from the 1st polarization direction, and a birefringent phase modulator placed between the image display and the lens array and configured to rotate a polarization plane of the image light.
    Type: Application
    Filed: March 1, 2007
    Publication date: June 28, 2007
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazuki Taira, Yuzo Hirayama, Tatsuo Saishu, Rieko Fukushima, Ayako Takagi
  • Publication number: 20070057145
    Abstract: A three-dimensional input apparatus includes a lens L1 for converting angular information about light rays from a object, a focusing element L3 for focusing the light rays from the object to the vicinities of an array R of photoelectric elements, and a lens L2 for performing conversion into a real image near the surface of the focusing element L3. The lens L2 is present between the lens L1 and focusing element L3. The array R records light as image signal sequentially. A driver portion drives the optical system and scans light ray information about the object.
    Type: Application
    Filed: September 8, 2006
    Publication date: March 15, 2007
    Inventors: Yoshiharu Momonoi, Kazuki Taira
  • Publication number: 20070052729
    Abstract: A two-dimensional image can be displayed in a desired position, a desired aspect ratio of the display image can be maintained, and such an elemental image array as to maximize an interpolating effect can be produced. A producing method of an elemental image array for three-dimensional image display includes: converting the resolution of the two-dimensional image into substantially the same resolution of a three-dimensional image display device; obtaining multipoint images by shifting the position to sample the two-dimensional image after the resolution conversion at regular intervals in the horizontal direction; and rearranging the multipoint images according to the positional relationship between exit pupils and projecting directions.
    Type: Application
    Filed: August 30, 2006
    Publication date: March 8, 2007
    Inventors: Rieko Fukushima, Ayako Takagi, Tatsuo Saishu, Kazuki Taira, Yuzo Hirayama
  • Publication number: 20060274036
    Abstract: A display input device comprises a display unit having a flexibility; and a first form change detection unit having a flexibility. The first form change detection unit is able to detect a deformation ascribed to the flexibility as a change in a electrical property. A display input system further comprises a display driving unit that supplies a display signal to the display unit and signal judging unit that judges a input data based on the change in a electrical property in the first form change detection unit. The input of a first data can be performed by adding the deformation to the display input device.
    Type: Application
    Filed: August 11, 2006
    Publication date: December 7, 2006
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tsuyoshi Hioki, Masahiko Akiyama, Kenichi Kameyama, Kazuki Taira, Isao Mihara