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).
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Patent number: 11841582Abstract: 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: GrantFiled: January 8, 2021Date of Patent: December 12, 2023Assignee: Japan Display Inc.Inventors: Tsutomu Harada, Shigenori Aoki, Koji Yoshida, Masayuki Mifune
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Patent number: 11573455Abstract: 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: GrantFiled: June 7, 2022Date of Patent: February 7, 2023Assignee: Japan Display Inc.Inventor: Masayuki Mifune
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Patent number: 11493683Abstract: 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: GrantFiled: February 25, 2022Date of Patent: November 8, 2022Assignee: Japan Display Inc.Inventors: Masayuki Mifune, Makoto Miyao
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Patent number: 11467626Abstract: 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: GrantFiled: March 2, 2021Date of Patent: October 11, 2022Assignee: Japan Display Inc.Inventor: Masayuki Mifune
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Publication number: 20220299822Abstract: 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: ApplicationFiled: June 7, 2022Publication date: September 22, 2022Applicant: Japan Display Inc.Inventor: Masayuki MIFUNE
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Patent number: 11385499Abstract: 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: GrantFiled: June 9, 2021Date of Patent: July 12, 2022Assignee: Japan Display Inc.Inventor: Masayuki Mifune
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Publication number: 20220179149Abstract: 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: ApplicationFiled: February 25, 2022Publication date: June 9, 2022Applicant: Japan Display Inc.Inventors: Masayuki MIFUNE, Makoto MIYAO
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Patent number: 11347102Abstract: 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: GrantFiled: March 2, 2021Date of Patent: May 31, 2022Assignee: Japan Display Inc.Inventor: Masayuki Mifune
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Patent number: 11300725Abstract: 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: GrantFiled: March 5, 2021Date of Patent: April 12, 2022Assignee: Japan Display Inc.Inventors: Masayuki Mifune, Makoto Miyao
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Patent number: 11294173Abstract: 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: GrantFiled: November 27, 2018Date of Patent: April 5, 2022Assignee: Japan Display Inc.Inventors: Tsutomu Harada, Shigenori Aoki, Koji Yoshida, Masayuki Mifune, Kazunori Yamaguchi
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Patent number: 11275268Abstract: 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: GrantFiled: March 1, 2021Date of Patent: March 15, 2022Assignee: Japan Display Inc.Inventor: Masayuki Mifune
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Patent number: 11153422Abstract: 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: GrantFiled: September 1, 2020Date of Patent: October 19, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Masayuki Mifune, Kouki Satou, Kouhei Wada
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Publication number: 20210294161Abstract: 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: ApplicationFiled: June 9, 2021Publication date: September 23, 2021Applicant: Japan Display Inc.Inventor: Masayuki MIFUNE
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Patent number: 11061275Abstract: 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: GrantFiled: August 13, 2019Date of Patent: July 13, 2021Assignee: Japan Display Inc.Inventor: Masayuki Mifune
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Publication number: 20210191035Abstract: 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: ApplicationFiled: March 5, 2021Publication date: June 24, 2021Applicant: Japan Display Inc.Inventors: Masayuki MIFUNE, Makoto MIYAO
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Publication number: 20210181792Abstract: 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: ApplicationFiled: March 2, 2021Publication date: June 17, 2021Inventor: Masayuki MIFUNE
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Publication number: 20210181579Abstract: 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: ApplicationFiled: March 2, 2021Publication date: June 17, 2021Inventor: Masayuki MIFUNE
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Publication number: 20210181578Abstract: 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: ApplicationFiled: March 1, 2021Publication date: June 17, 2021Applicant: Japan Display Inc.Inventor: Masayuki MIFUNE
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Publication number: 20210132442Abstract: 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: ApplicationFiled: January 8, 2021Publication date: May 6, 2021Inventors: Tsutomu HARADA, Shigenori AOKI, Koji YOSHIDA, Masayuki MIFUNE
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Patent number: 10989862Abstract: 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: GrantFiled: June 25, 2020Date of Patent: April 27, 2021Assignee: Japan Display Inc.Inventors: Masayuki Mifune, Makoto Miyao