Patents by Inventor Shin-ichi Uehara

Shin-ichi Uehara 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: 20060001974
    Abstract: An image display device is including a display panel in which a plurality of display units including at least pixels for displaying an image for a first point of view and a second point of view are arrayed in a matrix shape, a lens for distributing lights transmitted through pixels for the first point of view and lights transmitted through pixels for the second point of view into mutually different directions, and an illuminating member which is arranged on a back of the display panel and on whose face toward the display panel a plurality of convexes or concaves are formed, wherein a following formula is satisfied regarding the distance V between adjoining convexes or concaves in the illuminating member, where S is the distance between the pixels and the convexes or concaves, f is the focal distance of the lens, and L is the array cycle of the lens.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 5, 2006
    Applicant: NEC Corporation
    Inventors: Shin-Ichi Uehara, Naoyasu Ikeda, Nobuaki Takanashi
  • Publication number: 20050280637
    Abstract: A lenticular lens is provided in front of a liquid crystal panel composed of a plurality of pixels. In this case, the lenticular lens is arranged so that one cylindrical lens corresponds to two pixels adjacent to each other. Then, light rays outgoing from two pixels are refracted by this one cylindrical lens and intersect with each other at a point positioned on the surface of a tablet, and then reach the right eye and the left eye of a user, respectively.
    Type: Application
    Filed: June 17, 2005
    Publication date: December 22, 2005
    Inventors: Naoyasu Ikeda, Shin-ichi Uehara, Nobuaki Takanashi
  • Publication number: 20050225545
    Abstract: In a method for driving a liquid crystal display apparatus in which in each field, scan lines are successively scanned in order to display an image, the scanning sequence or the polarity of a signal voltage is reversed between a first field and a second field. A liquid crystal display apparatus driven by the method is also disclosed. It is possible to provide a high contrast, high brightness liquid crystal display apparatus which is not affected by electrical asymmetry.
    Type: Application
    Filed: June 6, 2005
    Publication date: October 13, 2005
    Inventors: Keni-ichi Takatori, Ken Sumiyoshi, Shin-ichi Uehara
  • Publication number: 20050099688
    Abstract: In a three-dimensional image display device for displaying color three-dimensional images, a fly eye lens, a display panel, and a light source are provided in this order from the observer side. A display panel has four pixels arrayed in a (2×2) matrix correlated with one lens element of the fly eye lens. In the event that j is a natural number, a pixel magnifying projection width e in a second direction is set in a range of the following expression according to mean interpupillary distance Y of the observers.
    Type: Application
    Filed: November 5, 2004
    Publication date: May 12, 2005
    Inventors: Shin-ichi Uehara, Naoyasu Ikeda, Nobuaki Takanashi
  • Publication number: 20040233354
    Abstract: A liquid crystal display element comprising a pair of opposed substrates disposed close to each other, a liquid crystal layer filled in the clearance therebetween, and a backlight. Installed on the substrate associated with the backlight are a reflector plate having an opening, and a condensing means. Bright and quality display can be effected at the time of transmission display and at the time of reflection display.
    Type: Application
    Filed: July 14, 2004
    Publication date: November 25, 2004
    Inventors: Shin-ichi Uehara, Ken Sumiyoshi
  • Publication number: 20040184146
    Abstract: A three-dimensional image display device is provided with a liquid crystal display panel, where a plurality of pixels for the right eye displaying an image for the right eye and a plurality of pixels for the left eye displaying an image for the left eye are arrayed, and a lenticular lens that is arranged on a side of the liquid crystal display panel, which faces a viewer, and whose surface facing the liquid crystal display panel is flat and surface facing the viewer has a plurality of hog-backed cylindrical lenses formed thereon so as to be parallel with each other, in which the lens pitch of the cylindrical lenses of the lenticular lens is set to 0.2 mm or less.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 23, 2004
    Applicant: NEC CORPORATION
    Inventors: Shin-ichi Uehara, Nobuaki Takanashi
  • Publication number: 20040169831
    Abstract: In a display panel, a plurality of pixel sections are arranged in the form of a matrix. Each of the pixel sections includes a pixel for displaying an image for the left eye and a pixel for displaying an image for the right eye. Lenticular lens having repeated convex surfaces is disposed in front of the display panel to deflect the light emitted from each pixel in the horizontal direction from the pixel for displaying the image for the left eye to the pixel for displaying the image for the right eye in each pixel section. Reflection plate reflects the exterior light toward the display panel and has surface projections on the surface. In this case, the focal distance f of the lens is different from the distance H between the surface of the reflection plate and the apex of the lens.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 2, 2004
    Applicant: NEC CORPORATION
    Inventors: Shin-ichi Uehara, Nobuaki Takanashi
  • Publication number: 20040169920
    Abstract: A marker for lens is provided as aligning unit in a lenticular lens that is of optical unit, and a marker for display panel is provided as aligning unit in a transmissive liquid crystal display panel that is of the display panel. Fixing unit is provided in at least a part of an area that encloses an image display area of the lenticular lens. An image display device is formed in such a manner that alignment between the lenticular lens and the liquid crystal display panel is performed by the marker for lens and the marker for display panel and the lenticular lens is fixed to a surface of the liquid crystal display panel on the side of a viewer.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 2, 2004
    Applicant: NEC CORPORATION
    Inventors: Shin-ichi Uehara, Nobuaki Takanashi
  • Publication number: 20040169919
    Abstract: A three-dimensional image/two-dimensional image display device includes a plurality of display pixels, and a lenticular lens for three-dimensional display. Each display pixel is consisted of M×N number of sub-pixels to be viewed from N view points. A pitch a of sub-pixels arranged in the longitudinal direction of ridge projection of the lenticular lens and a pitch b of the sub-pixels arranged in a direction orthogonal to the longitudinal direction of the lenticular lens satisfy the following expression. The M×N number of sub-pixels included in each of said display pixels are formed within a square area.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 2, 2004
    Applicant: NEC CORPORATION
    Inventors: Shin-ichi Uehara, Naoyasu Ikeda, Nobuaki Takanashi
  • Publication number: 20040169670
    Abstract: First pixels for the left eye and second pixels for the right eye in the semi-transmissive liquid crystal display panel are alternately disposed in the array direction of cylindrical lenses in a lenticular lens. A first transmissive region and a first reflective region are disposed in the first pixel for the left eye, and a second transmissive region and a second reflective region are disposed in the second pixel for the right eye. In this case, the first transmissive regions and the second reflective regions in the first pixels are alternately disposed and the second transmissive regions and reflective regions in the second pixels are alternately disposed in the longitudinal direction of the cylindrical lenses.
    Type: Application
    Filed: February 26, 2004
    Publication date: September 2, 2004
    Applicant: NEC CORPORATION
    Inventors: Shin-ichi Uehara, Nobuaki Takanashi
  • Publication number: 20040165264
    Abstract: A three-dimensional image display device is provided with a display panel. The display panel is provided with a plurality of pixels for the right eyes and pixels for the left eye, and light emitted from the pixels for the right eye is made incident to the right eye of a viewer and light emitted from the pixels for the left eye is made incident to the left eye. Then, when the distance between the display panel and the viewer is set to D (mm), definition X (dpi) of at least one of a vertical direction and a horizontal direction on a display plane of the display panel is set as in the following expression. 1 X ≥ 25.
    Type: Application
    Filed: February 23, 2004
    Publication date: August 26, 2004
    Applicant: NEC CORPORATION
    Inventors: Shin-ichi Uehara, Masao Imai, Nobuaki Takanashi, Setsuo Kaneko
  • Publication number: 20040041747
    Abstract: A 3D image/2D image switching display apparatus is provided with a liquid crystal display unit and first and second lenticular lenses. To display a 3D image, the first lenticular lens is arranged in such a way that the optical axis of the first lenticular lens coincides with the optical axis of the second lenticular lens so that pixels for a left eye display an image for a left eye and pixels for a right eye display an image for a right eye. To display a 2D image, the first lenticular lens is arranged in such a way that the optical axis of the first lenticular lens is shifted from the optical axis of the second lenticular lens by half a lens pitch so that the pixels for the left eye and the pixels for the right eye display the same image independently.
    Type: Application
    Filed: August 25, 2003
    Publication date: March 4, 2004
    Applicant: NEC CORPORATION
    Inventors: Shin-ichi Uehara, Nobuaki Takanashi, Hiroshi Hayama