Patents by Inventor Masayuki Mifune

Masayuki Mifune 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: 11841582
    Abstract: A display device is provided and including a backlight device including a plurality of light sources; a display panel disposed to oppose the backlight device and incline with respect to a direction perpendicular to an optical axis of the backlight device; a first diffusion plate between the display panel and the backlight device; and a second diffusion plate arranged at a predetermined angle with respect to the first diffusion plate.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: December 12, 2023
    Assignee: Japan Display Inc.
    Inventors: Tsutomu Harada, Shigenori Aoki, Koji Yoshida, Masayuki Mifune
  • Patent number: 11573455
    Abstract: According to one embodiment, an illumination device includes a light source module, and a reflector opposed to the light source module. The reflector includes a plurality of incidence openings on which light from the light source module is made incident, a plurality of emission openings opposed to the incidence openings, a plurality of reflective surfaces extending from the incidence openings to the emission openings, respectively, and reflective films formed on the reflective surfaces. The reflector includes a plurality of blocks, and the blocks are bonded to each other to form the reflector.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: February 7, 2023
    Assignee: Japan Display Inc.
    Inventor: Masayuki Mifune
  • Patent number: 11493683
    Abstract: According to one embodiment, an illuminating device includes a lightguide plate including a curved emitting surface, and an incidence surface including a side edge curved along the emitting surface, a printed circuit board facing the incidence surface, and light sources mounted on the printed circuit board. Each light source includes a light-emitting center, a pair of connection terminals, and a central axis extending through the connection terminals and the light-emitting center. The light sources are arranged along a curved mounting line extending along the curved side edge of the incidence surface on the printed circuit board. The light-emitting centers are located on the mounting line, and the central axes are parallel to each other.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: November 8, 2022
    Assignee: Japan Display Inc.
    Inventors: Masayuki Mifune, Makoto Miyao
  • Patent number: 11467626
    Abstract: A display device includes a light source configured to emit light, a display panel capable of receiving the light from a first surface side and transmitting the light to a second surface side, and a cylindrical hood extending to the first surface side of the display panel from the light source and covering a periphery of an optical axis of the light. The hood is made of black resin.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: October 11, 2022
    Assignee: Japan Display Inc.
    Inventor: Masayuki Mifune
  • Publication number: 20220299822
    Abstract: According to one embodiment, an illumination device includes a light source module, and a reflector opposed to the light source module. The reflector includes a plurality of incidence openings on which light from the light source module is made incident, a plurality of emission openings opposed to the incidence openings, a plurality of reflective surfaces extending from the incidence openings to the emission openings, respectively, and reflective films formed on the reflective surfaces. The reflector includes a plurality of blocks, and the blocks are bonded to each other to form the reflector.
    Type: Application
    Filed: June 7, 2022
    Publication date: September 22, 2022
    Applicant: Japan Display Inc.
    Inventor: Masayuki MIFUNE
  • Patent number: 11385499
    Abstract: According to one embodiment, an illumination device includes a light source module, and a reflector opposed to the light source module. The reflector includes a plurality of incidence openings on which light from the light source module is made incident, a plurality of emission openings opposed to the incidence openings, a plurality of reflective surfaces extending from the incidence openings to the emission openings, respectively, and reflective films formed on the reflective surfaces. The reflector includes a plurality of blocks, and the blocks are bonded to each other to form the reflector.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: July 12, 2022
    Assignee: Japan Display Inc.
    Inventor: Masayuki Mifune
  • Publication number: 20220179149
    Abstract: According to one embodiment, an illuminating device includes a lightguide plate including a curved emitting surface, and an incidence surface including a side edge curved along the emitting surface, a printed circuit board facing the incidence surface, and light sources mounted on the printed circuit board. Each light source includes a light-emitting center, a pair of connection terminals, and a central axis extending through the connection terminals and the light-emitting center. The light sources are arranged along a curved mounting line extending along the curved side edge of the incidence surface on the printed circuit board. The light-emitting centers are located on the mounting line, and the central axes are parallel to each other.
    Type: Application
    Filed: February 25, 2022
    Publication date: June 9, 2022
    Applicant: Japan Display Inc.
    Inventors: Masayuki MIFUNE, Makoto MIYAO
  • Patent number: 11347102
    Abstract: A display device includes: a light source; a display panel capable of receiving the light from a first surface side and transmitting the light to a second surface side; and a light guiding member. The display panel is inclined with respect to an orthogonal plane orthogonal to an optical axis of the light. The light guiding member has an output surface framed by an output port of the light and inclined with respect to the orthogonal plane. An inclination direction of the display panel is identical to an inclination direction of the output surface. The light guiding member has such a shape that a distance between inner surfaces of the light guiding member and the optical axis increases toward the first surface side from the light source side, and the inner surfaces opposing each other at positions orthogonal to the optical axis are not uniform in curvature.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: May 31, 2022
    Assignee: Japan Display Inc.
    Inventor: Masayuki Mifune
  • Patent number: 11300725
    Abstract: According to one embodiment, an illuminating device includes a lightguide plate including a curved emitting surface, and an incidence surface including a side edge curved along the emitting surface, a printed circuit board facing the incidence surface, and light sources mounted on the printed circuit board. Each light source includes a light-emitting center, a pair of connection terminals, and a central axis extending through the connection terminals and the light-emitting center. The light sources are arranged along a curved mounting line extending along the curved side edge of the incidence surface on the printed circuit board. The light-emitting centers are located on the mounting line, and the central axes are parallel to each other.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: April 12, 2022
    Assignee: Japan Display Inc.
    Inventors: Masayuki Mifune, Makoto Miyao
  • Patent number: 11294173
    Abstract: According to one embodiment, a display device includes a display panel, a backlight device including a plurality of light sources, to irradiate light to the display panel, and an optical element provided on an emission side of the display panel and inclined with respect to a direction perpendicular to an optical axis of the display panel.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: April 5, 2022
    Assignee: Japan Display Inc.
    Inventors: Tsutomu Harada, Shigenori Aoki, Koji Yoshida, Masayuki Mifune, Kazunori Yamaguchi
  • Patent number: 11275268
    Abstract: According to one embodiment, an illumination device includes a light source module including a plurality of light sources, and a reflector opposed to the light source module. The reflector includes a plurality of incidence openings on which light from the light sources is made incident, a plurality of emission openings opposed to the incidence openings, and a plurality of reflective surfaces extending from the incidence openings to the emission openings, respectively. Each of the reflective surfaces is formed by combining a plurality of curved surfaces arranged in an optical axis direction of the light sources.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: March 15, 2022
    Assignee: Japan Display Inc.
    Inventor: Masayuki Mifune
  • Patent number: 11153422
    Abstract: A fixing structure for a plate-shaped member is configured such that before the plate-shaped member and a case are fastened together with the screw in a fastening region composed at least of a first extremity and a screw mount, the plate-shaped member and the screw mount form an interval. The interval includes a first interval adjacent to the middle of the case, and a second interval adjacent to the outside of the case. The first interval is larger than the second interval.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: October 19, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masayuki Mifune, Kouki Satou, Kouhei Wada
  • Publication number: 20210294161
    Abstract: According to one embodiment, an illumination device includes a light source module, and a reflector opposed to the light source module. The reflector includes a plurality of incidence openings on which light from the light source module is made incident, a plurality of emission openings opposed to the incidence openings, a plurality of reflective surfaces extending from the incidence openings to the emission openings, respectively, and reflective films formed on the reflective surfaces. The reflector includes a plurality of blocks, and the blocks are bonded to each other to form the reflector.
    Type: Application
    Filed: June 9, 2021
    Publication date: September 23, 2021
    Applicant: Japan Display Inc.
    Inventor: Masayuki MIFUNE
  • Patent number: 11061275
    Abstract: According to one embodiment, an illumination device includes a light source module, and a reflector opposed to the light source module. The reflector includes a plurality of incidence openings on which light from the light source module is made incident, a plurality of emission openings opposed to the incidence openings, a plurality of reflective surfaces extending from the incidence openings to the emission openings, respectively, and reflective films formed on the reflective surfaces. The reflector includes a plurality of blocks, and the blocks are bonded to each other to form the reflector.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: July 13, 2021
    Assignee: Japan Display Inc.
    Inventor: Masayuki Mifune
  • Publication number: 20210191035
    Abstract: According to one embodiment, an illuminating device includes a lightguide plate including a curved emitting surface, and an incidence surface including a side edge curved along the emitting surface, a printed circuit board facing the incidence surface, and light sources mounted on the printed circuit board. Each light source includes a light-emitting center, a pair of connection terminals, and a central axis extending through the connection terminals and the light-emitting center. The light sources are arranged along a curved mounting line extending along the curved side edge of the incidence surface on the printed circuit board. The light-emitting centers are located on the mounting line, and the central axes are parallel to each other.
    Type: Application
    Filed: March 5, 2021
    Publication date: June 24, 2021
    Applicant: Japan Display Inc.
    Inventors: Masayuki MIFUNE, Makoto MIYAO
  • Publication number: 20210181792
    Abstract: A display device includes a light source configured to emit light, a display panel capable of receiving the light from a first surface side and transmitting the light to a second surface side, and a cylindrical hood extending to the first surface side of the display panel from the light source and covering a periphery of an optical axis of the light. The hood is made of black resin.
    Type: Application
    Filed: March 2, 2021
    Publication date: June 17, 2021
    Inventor: Masayuki MIFUNE
  • Publication number: 20210181579
    Abstract: A display device includes: a light source; a display panel capable of receiving the light from a first surface side and transmitting the light to a second surface side; and a light guiding member. The display panel is inclined with respect to an orthogonal plane orthogonal to an optical axis of the light. The light guiding member has an output surface framed by an output port of the light and inclined with respect to the orthogonal plane. An inclination direction of the display panel is identical to an inclination direction of the output surface. The light guiding member has such a shape that a distance between inner surfaces of the light guiding member and the optical axis increases toward the first surface side from the light source side, and the inner surfaces opposing each other at positions orthogonal to the optical axis are not uniform in curvature.
    Type: Application
    Filed: March 2, 2021
    Publication date: June 17, 2021
    Inventor: Masayuki MIFUNE
  • Publication number: 20210181578
    Abstract: According to one embodiment, an illumination device includes a light source module including a plurality of light sources, and a reflector opposed to the light source module. The reflector includes a plurality of incidence openings on which light from the light sources is made incident, a plurality of emission openings opposed to the incidence openings, and a plurality of reflective surfaces extending from the incidence openings to the emission openings, respectively. Each of the reflective surfaces is formed by combining a plurality of curved surfaces arranged in an optical axis direction of the light sources.
    Type: Application
    Filed: March 1, 2021
    Publication date: June 17, 2021
    Applicant: Japan Display Inc.
    Inventor: Masayuki MIFUNE
  • Publication number: 20210132442
    Abstract: A display device is provided and including a backlight device including a plurality of light sources; a display panel disposed to oppose the backlight device and incline with respect to a direction perpendicular to an optical axis of the backlight device; a first diffusion plate between the display panel and the backlight device; and a second diffusion plate arranged at a predetermined angle with respect to the first diffusion plate.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Inventors: Tsutomu HARADA, Shigenori AOKI, Koji YOSHIDA, Masayuki MIFUNE
  • Patent number: 10989862
    Abstract: According to one embodiment, an illuminating device includes a lightguide plate including a curved emitting surface, and an incidence surface including a side edge curved along the emitting surface, a printed circuit board facing the incidence surface, and light sources mounted on the printed circuit board. Each light source includes a light-emitting center, a pair of connection terminals, and a central axis extending through the connection terminals and the light-emitting center. The light sources are arranged along a curved mounting line extending along the curved side edge of the incidence surface on the printed circuit board. The light-emitting centers are located on the mounting line, and the central axes are parallel to each other.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: April 27, 2021
    Assignee: Japan Display Inc.
    Inventors: Masayuki Mifune, Makoto Miyao