Patents by Inventor Hiroyuki Hakoi

Hiroyuki Hakoi 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: 10180594
    Abstract: The present invention provides a mirror display that can suppress warp of a half mirror plate with a reflective polarizer under heat to prevent distortion of a reflected image in a mirror mode. The mirror display of the present invention includes a half mirror plate that includes a first reflective polarizer and a first base material, a display device, and a warp-suppressing member that suppresses shrinking of the first reflective polarizer under heat. The first reflective polarizer and the first base material are integrated, and the display device is disposed on the back surface side of the half mirror plate.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: January 15, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Hakoi, Masahiro Hasegawa, Akira Sakai, Kiyoshi Minoura
  • Patent number: 10175519
    Abstract: One aspect of the present invention provides a touch panel-equipped mirror display that can reduce distortion and ghosting in mirror images while also reducing the rainbow effect in displayed images. The touch panel-equipped mirror display according to one aspect of the present invention includes, in order from a rear side: a display device that includes a polarizer; a touch panel; and a mirror plate that includes a reflective polarizer and a substrate, wherein the reflective polarizer and the substrate are fixed together, and wherein the touch panel does not create a phase difference in light. It is preferable that the substrate be a glass substrate with a thickness of greater than or equal to 0.1 mm and less than or equal to 0.4 mm.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: January 8, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masahiro Hasegawa, Hiroyuki Hakoi, Akira Sakai, Kiyoshi Minoura
  • Patent number: 10146093
    Abstract: The present invention provides a mirror display that exhibits non-deteriorated display quality in a display mode and is capable of adjusting the color of reflected light in a mirror mode.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: December 4, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Hiroyuki Hakoi, Masahiro Hasegawa, Kiyoshi Minoura
  • Patent number: 10148942
    Abstract: A mirror display system that enables simultaneous perception of a mirror image and a video image with suppressed uncomfortable feeling includes a half mirror plate including a half mirror layer; a 3D display device; and a control unit being configured to supply a video signal to the 3D display device. The 3D display device is disposed on the back surface side of the half mirror plate and is configured to display, by the video signal, a video image for the left eye and a video image for the right eye that give a parallax on a display surface of the 3D display device. The parallax is set such that a fused video image of the video image for the left eye and the video image for the right eye is perceived on the back surface side behind the display surface of the 3D display device.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: December 4, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akira Sakai, Masahiro Hasegawa, Hiroyuki Hakoi, Kiyoshi Minoura
  • Patent number: 10146086
    Abstract: The present invention provides a mirror display that sufficiently prevents a decrease in the screen luminance in the display mode while sufficiently increasing the reflectance in the mirror mode, and also gives excellent production efficiency.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: December 4, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Masahiro Hasegawa, Hiroyuki Hakoi, Hidefumi Yoshida, Shigeaki Mizushima
  • Publication number: 20180321546
    Abstract: The switching mirror panel of the present invention includes, in the following order: a reflective polarizing plate; a liquid crystal panel including paired facing substrates, and a liquid crystal layer and a sealing material disposed between the paired substrates; and an absorptive polarizing plate, wherein the switching mirror panel is capable of switching between a transparent mode and a mirror mode, where the transparent mode allows light to pass from the viewing surface side of the absorptive polarizing plate to the back surface side of the reflective polarizing plate and the mirror mode does not allow light to pass from the viewing surface side of the absorptive polarizing plate to the back surface side of the reflective polarizing plate, the sealing material transmits light incident from the normal direction of the absorptive polarizing plate, and the sealing material has a haze of 0% or higher and 10% or lower.
    Type: Application
    Filed: October 24, 2016
    Publication date: November 8, 2018
    Inventors: AKIRA SAKAI, HIROYUKI HAKOI, KIYOSHI MINOURA
  • Patent number: 10054818
    Abstract: The present invention provides a mirror plate capable of suppressing the occurrence of orange peel-like unevenness. The mirror plate includes a mirror film including a mirror layer and an adhesive layer; and a substrate. The adhesive layer is attached to one surface of the substrate. The one surface of the substrate has an arithmetic average roughness of less than 0.03 ?m. The mirror film includes no hard coat layer containing cured resin. The thicknesses of the mirror layer and the adhesive layer have a relation satisfying: tA/tM?0.18, where tM represents the thickness of the mirror layer and to represents the thickness of the adhesive layer.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: August 21, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akira Sakai, Masahiro Hasegawa, Hiroyuki Hakoi, Kiyoshi Minoura
  • Patent number: 10042201
    Abstract: The present invention provides a liquid crystal display device having a high transmittance and excellent visibility in a bright place. The liquid crystal display device of the present invention includes, in the given order, a backlight, a first circular polarizer, a liquid crystal panel, and a second circular polarizer. The first circular polarizer is a reflective circular polarizer including a reflective linear polarizer and a ?/4 plate disposed adjacent to the reflective linear polarizer. The liquid crystal display device satisfies (1) the liquid crystal panel is provided with color filters of two or more colors and has an aperture ratio lower than 43%, or (2) the liquid crystal panel is provided with no color filter and has an aperture ratio of 39% or lower.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: August 7, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Hiroyuki Hakoi, Kozo Nakamura, Kiyoshi Minoura
  • Patent number: 10031370
    Abstract: A liquid crystal display device includes: a pair of substrates; a liquid crystal layer between the pair of substrates; and an alignment film between at least one of the pair of substrates and the liquid crystal layer, wherein the alignment film includes a first and second component, wherein the first component is a polymer in which at least two types of liquid crystal orientation side chains are bonded to a polysiloxane main chain, wherein the second component is made of at least one of a polyamic acid and a polyimide, wherein the at least two types of liquid crystal orientation side chains include a first side chain having on an end thereof a fluorine atom, and a second side chain that does not have on an end thereof a fluorine atom, wherein a proportion of the first component to a total amount of the second component is 2 mass % or greater, and wherein, in the liquid crystal display device, liquid crystal is sealed between the pair of substrates by a One Drop Fill scheme.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: July 24, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuko Teraoka, Hiroyuki Hakoi, Masanobu Mizusaki
  • Patent number: 10012866
    Abstract: The present invention provides a mirror display that can match the peripheral environment having diffusely reflecting surfaces in the mirror mode, and an electronic device including the mirror display. The mirror display includes a half mirror plate that includes a reflective polarizer and a display device. The half mirror plate further includes a light-diffusing member that diffuses at least part of incident light. The mirror display includes, in the order from the back surface side, the display device, the reflective polarizer, and the light-diffusing member.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: July 3, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Masahiro Hasegawa, Hiroyuki Hakoi, Kiyoshi Minoura, Shigeaki Mizushima
  • Publication number: 20180052346
    Abstract: The present invention provides a mirror display that exhibits non-deteriorated display quality in a display mode and is capable of adjusting the color of reflected light in a mirror mode.
    Type: Application
    Filed: February 15, 2016
    Publication date: February 22, 2018
    Inventors: AKIRA SAKAI, HIROYUKI HAKOI, MASAHIRO HASEGAWA, KIYOSHI MINOURA
  • Publication number: 20170329169
    Abstract: The present invention provides a mirror display that can be enlarged without quality deterioration. The mirror display includes, in the order from a viewing surface side, a half mirror plate including a reflective polarizer, a polarization conversion layer, and a display device including an absorptive polarizer on a side of the polarization conversion layer. The reflective polarizer includes a transmission axis parallel to the longitudinal direction of the display device and is jointless. The absorptive polarizer includes a transmission axis perpendicular to the longitudinal direction of the display device and is jointless. The polarization conversion layer is configured to convert the polarization of polarized light passed through the absorptive polarizer.
    Type: Application
    Filed: October 22, 2015
    Publication date: November 16, 2017
    Inventors: Akira SAKAI, Hiroyuki HAKOI, Masahiro HASEGAWA, Kiyoshi MINOURA
  • Publication number: 20170285382
    Abstract: One aspect of the present invention provides a touch panel-equipped mirror display that can reduce distortion and ghosting in mirror images while also reducing the rainbow effect in displayed images. The touch panel-equipped mirror display according to one aspect of the present invention includes, in order from a rear side: a display device that includes a polarizer; a touch panel; and a mirror plate that includes a reflective polarizer and a substrate, wherein the reflective polarizer and the substrate are fixed together, and wherein the touch panel does not create a phase difference in light. It is preferable that the substrate be a glass substrate with a thickness of greater than or equal to 0.1 mm and less than or equal to 0.4 mm.
    Type: Application
    Filed: August 26, 2015
    Publication date: October 5, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masahiro HASEGAWA, Hiroyuki HAKOI, Akira SAKAI, Kiyoshi MINOURA
  • Publication number: 20170261808
    Abstract: The present invention provides a liquid crystal display device having a high transmittance and excellent visibility in a bright place. The liquid crystal display device of the present invention includes, in the given order, a backlight, a first circular polarizer, a liquid crystal panel, and a second circular polarizer. The first circular polarizer is a reflective circular polarizer including a reflective linear polarizer and a ?/4 plate disposed adjacent to the reflective linear polarizer. The liquid crystal display device satisfies (1) the liquid crystal panel is provided with color filters of two or more colors and has an aperture ratio lower than 43%, or (2) the liquid crystal panel is provided with no color filter and has an aperture ratio of 39% or lower.
    Type: Application
    Filed: November 26, 2015
    Publication date: September 14, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: AKIRA SAKAI, HIROYUKI HAKOI, KOZO NAKAMURA, KIYOSHI MINOURA
  • Publication number: 20170199311
    Abstract: The present invention provides a mirror display that enables simultaneous perception of a mirror image and an image with suppressed uncomfortable feeling. The mirror display of the present invention includes a half mirror plate including a half mirror layer, and a display device. The display device is disposed on the back surface side of the half mirror plate. The distance between a display surface of the display device and a display surface of the half mirror plate is not smaller than 100 mm. The half mirror layer preferably includes a reflective polarizer.
    Type: Application
    Filed: June 3, 2015
    Publication date: July 13, 2017
    Inventors: Akira SAKAI, Masahiro HASEGAWA, Hiroyuki HAKOI, Kiyoshi MINOURA
  • Publication number: 20170188020
    Abstract: The present invention provides a mirror display system that enables simultaneous perception of a mirror image and a video image with suppressed uncomfortable feeling. The mirror display system of the present invention includes a half mirror plate including a half mirror layer; a 3D display device; and a control unit being configured to supply a video signal to the 3D display device. The 3D display device is disposed on the back surface side of the half mirror plate and is configured to display, by the video signal, a video image for the left eye and a video image for the right eye that give a parallax on a display surface of the 3D display device. The parallax is set such that a fused video image of the video image for the left eye and the video image for the right eye is perceived on the back surface side behind the display surface of the 3D display device.
    Type: Application
    Filed: June 3, 2015
    Publication date: June 29, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Akira SAKAI, Masahiro HASEGAWA, Hiroyuki HAKOI, Kiyoshi MINOURA
  • Publication number: 20170168349
    Abstract: The present invention provides a mirror plate capable of suppressing the occurrence of orange peel-like unevenness. The mirror plate includes a mirror film including a mirror layer and an adhesive layer; and a substrate. The adhesive layer is attached to one surface of the substrate. The one surface of the substrate has an arithmetic average roughness of less than 0.03 ?m. The mirror film includes no hard coat layer containing cured resin. The thicknesses of the mirror layer and the adhesive layer have a relation satisfying: tA/tM?0.18, where tM represents the thickness of the mirror layer and to represents the thickness of the adhesive layer.
    Type: Application
    Filed: July 1, 2015
    Publication date: June 15, 2017
    Inventors: Akira SAKAI, Masahiro HASEGAWA, Hiroyuki HAKOI, Kiyoshi MINOURA
  • Publication number: 20170082895
    Abstract: The present invention provides a mirror display that can match the peripheral environment having diffusely reflecting surfaces in the mirror mode, and an electronic device including the mirror display. The mirror display includes a half mirror plate that includes a reflective polarizer and a display device. The half mirror plate further includes a light-diffusing member that diffuses at least part of incident light. The mirror display includes, in the order from the back surface side, the display device, the reflective polarizer, and the light-diffusing member.
    Type: Application
    Filed: February 17, 2015
    Publication date: March 23, 2017
    Inventors: Akira SAKAI, Masahiro HASEGAWA, Hiroyuki HAKOI, Kiyoshi MINOURA, Shigeaki MIZUSHIMA
  • Publication number: 20170059935
    Abstract: The present invention provides a mirror display that can suppress warp of a half mirror plate with a reflective polarizer under heat to prevent distortion of a reflected image in a mirror mode. The mirror display of the present invention includes a half mirror plate that includes a first reflective polarizer and a first base material, a display device, and a warp-suppressing member that suppresses shrinking of the first reflective polarizer under heat. The first reflective polarizer and the first base material are integrated, and the display device is disposed on the back surface side of the half mirror plate.
    Type: Application
    Filed: April 21, 2015
    Publication date: March 2, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki HAKOI, Masahiro HASEGAWA, Akira SAKAI, Kiyoshi MINOURA
  • Publication number: 20160343308
    Abstract: The present invention provides a mirror display that has improved design aesthetics and makes it possible to sufficiently improve visibility in mirror mode in dark environments. The mirror display according to the present invention includes a half mirror plate having a half mirror layer, a display device, a case, and an auxiliary illumination unit that includes an auxiliary light source. The case supports at least the half mirror plate and the display device and includes an outer frame that covers an edge of a front surface of the half mirror plate when viewed in a plan view from a viewing side. The display device is arranged on a rear side of the half mirror plate. The auxiliary light source is arranged on the rear side of the half mirror plate, the display device, or the outer frame. The auxiliary illumination unit is controlled separately from the display device and emits light towards the viewing side when the mirror display is in mirror mode.
    Type: Application
    Filed: August 29, 2014
    Publication date: November 24, 2016
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masahiro HASEGAWA, Hiroyuki HAKOI, Akira SAKAI, Hidefumi YOSHIDA, Takaharu KANAI, Takako SHIMIZU, Yuuki ITOU, Atsushi OGAWA, Akira TSURUTA, Takayuki YUASA, Shigeaki MIZUSHIMA