Patents by Inventor Shun Ueki

Shun Ueki 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: 20160223154
    Abstract: A lighting film which includes a base member having optical transparency, a plurality of protrusions having optical transparency, which are formed to be adjacent to each other on one surface of the base member, and a gap portion formed between the protrusions, in which an area of an end surface of the protrusion on a base member side is greater than an area of an end surface of the protrusion on a side opposite to the base member, and a ratio s/w of an interval s of two adjacent protrusions among the plurality of protrusions to a width w of the protrusion is equal to or less than 0.1.
    Type: Application
    Filed: June 5, 2014
    Publication date: August 4, 2016
    Inventors: Tomoko NANGO, Shun UEKI, Tsuyoshi KAMADA, Kazuyoshi SAKURAGI, Masahiro TSUJIMOTO
  • Publication number: 20160223155
    Abstract: A daylighting device of the present invention is provided with a planar optical member 1 and a support member. The planar optical member 1 is provided with a planar structure body which has a plurality of linear bodies 3 formed of optically transparent materials which are arrayed substantially in parallel and a plurality of binding members which are arranged in a direction which intersects with the plurality of the linear bodies 3 and which bind the plurality of the linear bodies 3 in a state of being arrayed substantially in parallel. The linear bodies 3 have reflective surfaces which reflect light which is incident to the linear body 3 along a direction which intersects with a length direction of the linear body 3 and refractive surfaces which refract the light.
    Type: Application
    Filed: September 25, 2014
    Publication date: August 4, 2016
    Inventors: Tomoko NANGO, Tsuyoshi KAMADA, Shun UEKI, Takashi KATAYAMA, Kazuyoshi SAKURAGI, Masahiro TSUJIMOTO, Daisuke SHINOZAKI
  • Patent number: 9324286
    Abstract: The viewing angle characteristics of a multiprimary liquid crystal display device in which a plurality of red subpixels are provided in each pixel are improved. A multiprimary liquid crystal display device according to the present invention includes a pixel defined by a plurality of subpixels, and performs multicolor display by using four or more primary colors to be displayed by the plurality of subpixels. The plurality of subpixels of the multiprimary liquid crystal display device according to the present invention include first and second red subpixels R1 and R2 for displaying red, a green subpixel G for displaying green, a blue subpixel B for displaying blue, and a cyan subpixel C for displaying cyan. When a color having a hue which is within a predetermined first range is displayed by the pixel, the gray scale level of the first red subpixel R1 and the gray scale level of the second red subpixel R2 differ from each other.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: April 26, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tomohiko Mori, Kazunari Tomizawa, Yuichi Yoshida, Kozo Nakamura, Shun Ueki
  • Patent number: 9210412
    Abstract: The present invention provides active shutter glasses and a stereoscopic image projection system that allow a stereoscopic image of excellent display quality to be viewed. The present invention provides active shutter glasses for a stereoscopic image projection system in which the active shutter glasses include a shutter section for the right eye and a shutter section for the left eye, the shutter section for the right eye and the shutter section for the left eye each include a liquid crystal cell, and when the glasses are worn, viewing angles of the shutter section for the right eye and the shutter section for the left eye each are wider on the right and left sides than on the upper and lower sides.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: December 8, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shun Ueki, Takahiro Nakahara, Kozo Nakamura, Akira Sakai
  • Patent number: 9177512
    Abstract: A display device (100) according to the present invention includes a pixel defined by a plurality of sub pixels. The plurality of sub pixels are a red sub pixel (R) to display red, a green sub pixel (G) to display green, a blue sub pixel (B) to display blue, and a yellow sub pixel (Ye) to display yellow. When an input signal corresponding to green of the sRGB color space is externally input, the display device (100) according to the present invention provides display by use of the green sub pixel (G) and also the yellow sub pixel (Ye). According to the present invention, a multiple primary color display device which suppresses decline of the display quality when an input signal corresponding to green of the sRGB color space is externally input is provided.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: November 3, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shun Ueki, Kohzoh Nakamura, Kazunari Tomizawa, Tomohiko Mori, Yuichi Yoshida
  • Patent number: 9165494
    Abstract: A signal conversion circuit (20) is used for a multiple-primary color liquid crystal display device (100) which performs color display using four primary colors of red displayed by a red-sub pixel (R), green displayed by green-sub pixel (G), blue displayed by blue-sub pixel (B), and yellow displayed by yellow-sub pixel (Ye), and converts an input three-primary color video signal into a multiple-primary color video signal corresponding to four primary colors. The signal conversion circuit (20) performs signal conversion such that a gray scale level of the yellow-sub pixel (Ye) is higher than a gray scale level of the green-sub pixel (G) in at least some cases from among cases in which a red gray-scale level r, a green gray-scale level g, and a blue gray-scale level b which are displayed by the three-primary color video signal satisfy a relationship of r>g>b.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: October 20, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuichi Yoshida, Tomohiko Mori, Kazunari Tomizawa, Kohzoh Nakamura, Shun Ueki
  • Publication number: 20150226394
    Abstract: A lighting film 1 includes a base member 10 which has light-transmitting properties, a plurality of protrusion portions 11 which have light-transmitting properties and are formed on one surface of the base member 10 so as to be adjacent to each other, and a gap portion 12 which is formed between the protrusion portions. In the protrusion portion 11, a first end surface 11a on the base member 10 side or a second end surface 11b on an opposite side to the base member 10 is configured as a light incidence end surface, and a side surface 11c which comes into contact with the gap portion 12 is configured as a reflective surface of totally reflecting light which is incident from the light incidence end surface. The base member 10 or a member that is formed on one surface of the base member 10 and has light-transmitting properties is exposed in the gap portion 12.
    Type: Application
    Filed: September 30, 2013
    Publication date: August 13, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Shun Ueki, Tomoko Nangou, Tsuyoshi Kamada, Kazuyoshi Sakuragi, Masahiro Tsujimoto
  • Publication number: 20150179140
    Abstract: A display device in which an image with a wide color reproduction range and bright red can be displayed is provided. The display device is a display device such as, for example, a liquid crystal display device, a cathode ray tube, an organic electroluminescent display device, a plasma display panel, and a field emission display. The display device includes a display surface including a pixel having red, green, blue, and yellow sub-pixels, wherein the red sub-pixel preferably has the largest aperture area.
    Type: Application
    Filed: March 5, 2015
    Publication date: June 25, 2015
    Inventors: Kozo NAKAMURA, Shun UEKI, Tokio TAGUCHI, Akiko ITOU
  • Patent number: 8994901
    Abstract: A display device in which an image with a wide color reproduction range and bright red can be displayed is provided. The display device is a display device such as, for example, a liquid crystal display device, a cathode ray tube, an organic electroluminescent display device, a plasma display panel, and a field emission display. The display device includes a display surface including a pixel having red, green, blue, and yellow sub-pixels, wherein the red sub-pixel preferably has the largest aperture area.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: March 31, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kozo Nakamura, Shun Ueki, Tokio Taguchi, Akiko Itou
  • Patent number: 8994642
    Abstract: A display element (10) includes an upper substrate (first substrate) (2), a lower substrate (second substrate) (3), and a polar liquid (16) that is sealed in a display space (S) formed between the upper substrate (2) and the lower substrate (3) so as to be moved toward an effective display region (P1) or a non-effective display region (P2). A display control (DC) supplies predetermined reset signals to signal electrodes (4), reference electrodes (5), and scanning electrodes (6) so that the polar liquid (16) in each of all pixel regions (P) is moved to an initial position that is set on the effective display region (P1) side or the non-effective display region (P2) side opposite the scanning direction before the scanning operation is performed.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: March 31, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiki Matsuoka, Kohzoh Nakamura, Shun Ueki, Takuma Tomotoshi
  • Patent number: 8976107
    Abstract: A display element (10) includes an upper substrate (first substrate) (2), a lower substrate (second substrate) (3), and a conductive liquid (16) that is sealed in a display space (S) formed between the upper substrate (2) and the lower substrate (3) so as to be moved toward an effective display region (P1) or a non-effective display region (P2). The conductive liquid (16) is colored black. The non-effective display (P2) is defined by a black matrix (light-shielding layer) (11s) provided on the upper substrate (2), and the effective display region (P1) is defined by a color filter (aperture) (11r) formed in the black matrix (11s). The size of the black matrix (11s) is determined based on the size of each of ribs (14a, 14b) and a gap size (H) between the upper substrate (2) and the lower substrate (3).
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: March 10, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takuma Tomotoshi, Kohzoh Nakamura, Shun Ueki, Toshiki Matsuoka
  • Publication number: 20150062491
    Abstract: A liquid crystal display device includes a liquid crystal panel that includes a liquid crystal cell including a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, and a pair of polarizers arranged on a light incident side and a light emission side of the liquid crystal layer; an illumination device that is arranged on the light incident side of the liquid crystal cell, and emits light toward the liquid crystal cell; and a light control member that is arranged on the light emission side of the liquid crystal panel, and controls an emission direction of light emitted from the liquid crystal panel by anisotropically diffusing the light in an azimuthal direction as viewed from a direction normal to the liquid crystal panel.
    Type: Application
    Filed: April 2, 2013
    Publication date: March 5, 2015
    Inventors: Kazuyoshi Sakuragi, Tsuyoshi Kamada, Toru Kanno, Shun Ueki, Tsuyoshi Maeda, Emi Yamamoto
  • Patent number: 8970965
    Abstract: A display element (10) includes an upper substrate (first substrate) (2), a lower substrate (second substrate) (3), and a polar liquid (16) that is sealed in a display space (S) formed between the upper substrate (2) and the lower substrate (3) so as to be moved toward an effective display region (P1) or a non-effective display region (P2). A rib (14) hermetically divides the inside of the display space (S) in accordance with each of a plurality of pixel regions (P). A movement space (K) in which an oil (insulating fluid) (17) is moved is provided for each of the pixel regions (P).
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: March 3, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takuma Tomotoshi, Shun Ueki, Toshiki Matsuoka, Kohzoh Nakamura, Tomoko Teranishi
  • Patent number: 8964136
    Abstract: The present invention provides active shutter glasses including shutters in which orientations of their components are freely determined, and provides a stereoscopic image projection system. The present invention provides active shutter glasses for a stereoscopic image projection system, the active shutter glasses comprising: a right-eye shutter; and a left-eye shutter, wherein the right-eye shutter and the left-eye shutter each include a liquid crystal layer and a linear polarizing element, at least one of the right-eye shutter and the left-eye shutter includes a layer adopted to change a vibration direction of polarized light, the linear polarizing element is provided at the outer side of the liquid crystal layer, and the layer adapted to change a vibration direction of polarized light is provided at the outer side of the linear polarizing element.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: February 24, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takahiro Nakahara, Shun Ueki, Kozo Nakamura, Akira Sakai
  • Publication number: 20150042933
    Abstract: Provided are a fluorescent substrate that prevents the occurrence of the phenomenon in which the display color becomes faint and a display device provided with the same. A fluorescent substrate 10 includes a substrate 11; pixels 12 provided on the substrate 11; and partitions 13 that partition the pixels 12, wherein each of the pixels 12 includes at least a red sub-pixel 12R that performs display of red light; a blue sub-pixel 12B that performs display of blue light; and a third color sub-pixel that performs display of third color light different from the two colors, and wherein a distance between the red sub-pixel 12R and the blue sub-pixel 12B is greater than a distance between other sub-pixels.
    Type: Application
    Filed: March 5, 2013
    Publication date: February 12, 2015
    Applicant: Sharp Kabushiki Kaidsha
    Inventors: Shun Ueki, Masahiro Tsujimoto, Kazuyoshi Sakuragi, Tsuyoshi Kamada, Shohei Katsuta, Daisuke Shinozaki
  • Patent number: 8922724
    Abstract: Disclosed are active shutter glasses and a three-dimensional image recognition unit capable of visually recognizing a three-dimensional image with excellent display quality. The active shutter glasses are active shutter glasses for three-dimensional image recognition. The active shutter glasses comprise a right temple, a left temple, a right-eye lens, and a left-eye lens. The right-eye lens and the left-eye lens comprise liquid crystal cells. The right-eye lens and the left-eye lens have an inclination with respect to a state where the right-eye lens and the left-eye lens are arranged on the same plane, and are arranged on a surface orthogonal to a horizontal surface including the top surfaces of the right temple and the left temple.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: December 30, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shun Ueki, Kozo Nakamura, Takahiro Nakahara
  • Patent number: 8780029
    Abstract: A multiprimary liquid crystal display device in which deteriorations in display quality caused by the coloration of a gray representation when viewed from an oblique direction are suppressed, and a signal conversion circuit for use in such a multiprimary liquid crystal display device are provided. A signal conversion circuit according to the present invention is for use in a multiprimary liquid crystal display device, the multiprimary liquid crystal display device having a pixel defined by a plurality of subpixels including a red subpixel, a green subpixel, a blue subpixel, and a yellow subpixel, and performing multicolor display by using four or more primary colors to be displayed by the plurality of subpixels, the signal conversion circuit converting an input video signal to a multiprimary signal corresponding to four or more primary colors. When a video signal for the pixel to display a gray color having a normalized luminance of no less than 0.2 and no more than 0.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: July 15, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kozo Nakamura, Shun Ueki, Kazunari Tomizawa, Tomohiko Mori, Yuichi Yoshida
  • Patent number: 8675031
    Abstract: A liquid crystal display device according to the present invention comprises a pixel including a plurality of sub pixels. The plurality of sub pixels include a red sub pixel (R), a green sub pixel (G), a blue sub pixel (B), a yellow sub pixel (Ye) and a cyan sub pixel (C). The aperture area size of one of the cyan sub pixel (C) and the blue sub pixel (B) is larger than the aperture area size of any of the other of the cyan (C) and blue (B) sub pixels, the green sub pixel (G) and the yellow sub pixel (Ye); and the aperture area size of the red sub pixel (R) is larger than the aperture area size of any of the other of the cyan (C) and blue (B) sub pixels, the green sub pixel (G), and the yellow sub pixel (Ye).
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: March 18, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohzoh Nakamura, Shun Ueki, Kazunari Tomizawa, Tomohiko Mori, Yuichi Yoshida
  • Patent number: 8654116
    Abstract: A signal conversion circuit is disclosed which is suitably used in a multiprimary liquid crystal display device, and a multiprimary liquid crystal display device having such a signal conversion circuit. A signal conversion circuit according to one embodiment of the present invention is for use in a multiprimary liquid crystal display device, and converts an input video signal to a multiprimary signal corresponding to four or more primary colors. When generating a multiprimary signal for displaying dark skin, the signal conversion circuit according to an embodiment of the present invention applies a conversion to the video signal so that a color difference ?u?v?=((u??u60?)2+(v??v60?)2) is 0.03 or less, the color difference ?u?v? being defined by CIE1976 chromaticity coordinates (u?, v?) representing a chromaticity when the pixel is viewed from the frontal direction and CIE1976 chromaticity coordinates (u60?, v60?) representing a chromaticity when the pixel is viewed from a 60° oblique direction.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: February 18, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazunari Tomizawa, Tomohiko Mori, Shun Ueki, Takao Muroi
  • Patent number: 8654050
    Abstract: A multi-primary-color liquid crystal display device according to the present invention is adapted to conduct a display operation in at least four primary colors. The device has a plurality of pixels that form at least two different types of subsets. The device can perform rendering processing in which at least one of the pixels that form a first one of the at least two different types of subsets lends a luminance to a second type of subset. Each pixel includes a first sub-pixel and a second sub-pixel that could have mutually different luminance. The second type of subset borrows a luminance from one of the first and second sub-pixels of the at least one pixel that has the higher luminance.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: February 18, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shun Ueki, Kohzoh Nakamura, Akiko Miyazaki