Patents by Inventor Toshiharu Oishi
Toshiharu Oishi 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: 11453340Abstract: A display device includes: a display panel, a reflective polarization plate, a polarization control panel, a polarization plate, and an optical layer arranged in a stated order. The reflective polarization plate transmits a component polarized in the first direction and reflects a component polarized in the second direction, in light incident on the reflective polarization plate. The polarization control panel is switchable between a first state in which light incident on the polarization control panel has its polarization direction changed and is transmitted accordingly and a second state in which the incident light has its polarization direction maintained and is transmitted accordingly. The polarization plate transmits a component polarized in the first direction or a component polarized in the second direction, in light incident on the polarization plate. The optical layer disturbs a polarization direction of light incident on the optical layer and transmits the light accordingly.Type: GrantFiled: September 23, 2020Date of Patent: September 27, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Toshiharu Oishi
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Publication number: 20210001778Abstract: A display device includes: a display panel, a reflective polarization plate, a polarization control panel, a polarization plate, and an optical layer arranged in a stated order. The reflective polarization plate transmits a component polarized in the first direction and reflects a component polarized in the second direction, in light incident on the reflective polarization plate. The polarization control panel is switchable between a first state in which light incident on the polarization control panel has its polarization direction changed and is transmitted accordingly and a second state in which the incident light has its polarization direction maintained and is transmitted accordingly. The polarization plate transmits a component polarized in the first direction or a component polarized in the second direction, in light incident on the polarization plate. The optical layer disturbs a polarization direction of light incident on the optical layer and transmits the light accordingly.Type: ApplicationFiled: September 23, 2020Publication date: January 7, 2021Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventor: Toshiharu OISHI
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Publication number: 20170276838Abstract: An anti-reflection member has reflection characteristics wherein a specular reflection component of reflected light is 0.15% or less and a diffuse reflection component of the reflected light is in a range from 0.25% to 0.65%, inclusive.Type: ApplicationFiled: September 8, 2015Publication date: September 28, 2017Inventors: TOSHIHARU OISHI, TAKAHIDE FUJIMOTO
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Publication number: 20170235176Abstract: The liquid crystal display device includes a transparent cover, a first polarizing plate with retardation function, an optical device, and a liquid crystal panel. The first polarizing plate with retardation function is in a form of a film, and is obtained by laminating, from the front side, a cover film, a polarizer layer, and a cover film with retardation function for changing the polarization state of transmitted light. The first polarizing plate with retardation function and the transparent cover are bonded by using a transparent adhesive layer. The second polarizing plate with retardation function has a configuration in which a cover film with retardation function for changing the polarization state of transmitted light, a polarizer layer, and a cover film are laminated, and is bonded to the liquid crystal section with a transparent adhesive layer being interposed between the second polarizing plate with retardation function and the liquid crystal section.Type: ApplicationFiled: August 28, 2015Publication date: August 17, 2017Inventors: TOSHIHARU OISHI, TAKAHIDE FUJIMOTO
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Publication number: 20170205539Abstract: An anti-reflection member includes an anti-glare layer including a fine irregular structure, and an anti-reflection layer formed over the anti-glare layer and including a plurality of films laminated on each other. In the anti-glare layer, a surface of the fine irregular structure having an inclination angle that results in a film thickness variation of the anti-reflection layer falling within ±20%, inclusive, in terms of film thickness occupies 60% or greater of an area in which the fine irregular structure is formed. The film thickness variation of the anti-reflection layer originates from a variation in the inclination angle of the surface of the fine irregular structure.Type: ApplicationFiled: September 2, 2015Publication date: July 20, 2017Inventors: TOSHIHARU OISHI, TAKAHIDE FUJIMOTO
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Publication number: 20170203693Abstract: An electronic mirror device for displaying an image captured by a camera mounted to a vehicle includes a liquid crystal display having a display surface, a retarder, and a cholesteric liquid crystal layer. The retarder is disposed opposite the display surface of the liquid crystal display, and circularly polarizes a liquid crystal image emitted from the liquid crystal display. The cholesteric liquid crystal layer is disposed on the opposite side of the retarder from the liquid crystal display. The liquid crystal image circularly polarized by the retarder passes through the cholesteric liquid crystal layer.Type: ApplicationFiled: May 12, 2015Publication date: July 20, 2017Inventor: TOSHIHARU OISHI
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Publication number: 20170080868Abstract: An electronic mirror device has a display device that is mounted on a mounting position of a rear view mirror in an interior of a vehicle and displays an image taken by a camera mounted on the vehicle. The display device has a body case having an opening, and a display unit that is mounted in the body case. The display unit has a video display unit, and a half mirror. The video display unit has a display surface facing an opening of the body case. The half mirror is disposed closer to the opening of the body case than to the video display unit, and apart from the display surface. A gap between the half mirror and the video display unit is smaller at least at one of both ends of the half mirror in a horizontal direction than at a center of the half mirror.Type: ApplicationFiled: June 4, 2015Publication date: March 23, 2017Applicant: Panasonic Intellectual Property Management Co., LtdInventor: TOSHIHARU OISHI
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Patent number: 8026653Abstract: A display device provided with a screen, comprising: an optical filter having a blind sheet that comprises a plurality of semitranslucent layers having translucence arranged side-by-side extending in a horizontal direction and having a predetermined thickness in a vertical direction, and a plurality of transparent layers which are disposed between the semitranslucent layers and which are of a higher translucency than that of the semitranslucent layers and of a greater thickness than the thickness of the semitranslucent layers; and an adhesive member for sticking the optical filter to the screen, wherein the ratio of the transmittance of a limit angle of the screen with respect to the transmittance of the optical filter at the center of the screen is at least 0.10 and not more than 0.50.Type: GrantFiled: June 20, 2007Date of Patent: September 27, 2011Assignee: Panasonic CorporationInventors: Toshiharu Oishi, Minoru Higuchi, Takahide Fujimoto, Akihiko Horita, Ryusuke Fukushima, Eishi Mizobata
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Publication number: 20110228401Abstract: A body antireflection layer is provided on a display surface of a display device body. A first antireflection layer and a second antireflection layer are provided on both sides of an optical filter that is opposed to the display surface by a predetermined gap. A light-blocking screen frame layer is provided on the optical filter between a light-transmissive base and the first antireflection layer near the display surface at a peripheral area corresponding to an outer periphery of the display device body. A color difference between a position of the screen frame layer and a position of a display area of the display device body is 40 or less. A border between the display area and the screen frame layer becomes difficult to be visible, so that the optical filter can be recognized by users as an integral surface having no border over the entire surface of the optical filter.Type: ApplicationFiled: November 13, 2008Publication date: September 22, 2011Applicant: PANASONIC CORPORATIONInventors: Ryusuke Fukushima, Toshiharu Oishi, Takahide Fujimoto, Hiroaki Yoshimatsu
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Patent number: 8008846Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: GrantFiled: January 22, 2010Date of Patent: August 30, 2011Assignee: Panasonic CorporationInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Patent number: 7986081Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: GrantFiled: January 22, 2010Date of Patent: July 26, 2011Assignee: Panasonic CorporationInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Patent number: 7768182Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: GrantFiled: November 13, 2007Date of Patent: August 3, 2010Assignee: Panasonic CorporationInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Publication number: 20100149779Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: ApplicationFiled: January 22, 2010Publication date: June 17, 2010Applicant: PANASONIC CORPORATIONInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Publication number: 20100118391Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: ApplicationFiled: January 22, 2010Publication date: May 13, 2010Applicant: PANASONIC CORPORATIONInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Publication number: 20100118478Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: ApplicationFiled: January 22, 2010Publication date: May 13, 2010Applicant: PANASONIC CORPORATIONInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Publication number: 20100067115Abstract: A display device provided with a screen, comprising: an optical filter having a blind sheet that comprises a plurality of semitranslucent layers having translucence arranged side-by-side extending in a horizontal direction and having a predetermined thickness in a vertical direction, and a plurality of transparent layers which are disposed between the semitranslucent layers and which are of a higher translucency than that of the semitranslucent layers and of a greater thickness than the thickness of the semitranslucent layers; and an adhesive member for sticking the optical filter to the screen, wherein the ratio of the transmittance of a limit angle of the screen with respect to the transmittance of the optical filter at the center of the screen is at least 0.10 and not more than 0.50.Type: ApplicationFiled: June 20, 2007Publication date: March 18, 2010Applicant: Pioneer CorporationInventor: Toshiharu OISHI
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Publication number: 20080180016Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: ApplicationFiled: November 13, 2007Publication date: July 31, 2008Inventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Patent number: 7339311Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: GrantFiled: December 9, 2003Date of Patent: March 4, 2008Assignee: Pioneer CorporationInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Patent number: 6977709Abstract: A drive circuit board 11 is mounted on a side portion of a chassis 10 in a position forming an angle with a flat display panel 1. A wiring board 13 has two flections 13DA, 13DB formed in two positions. The wiring board 13 is placed in a front corner of the flat display apparatus and between the flat display panel 1 and the drive circuit board 11, which are placed at angles on the chassis 10, in such a way that electrode terminals 13B and 13C are respectively connected to the flat display panel 1 and the drive circuit board 11, and a board body 13A is bent by the flections 13DA, 13DB, provided in the two positions, in the direction of projecting toward the front of the flat display panel 1.Type: GrantFiled: December 1, 2003Date of Patent: December 20, 2005Assignee: Pioneer CorporationInventors: Yukiharu Miyamura, Koichi Kaneko, Sadao Yokoi, Yousuke Tagaya, Toshiharu Oishi
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Patent number: 6833674Abstract: In a plasma display panel device including a plasma display panel and a drive circuit for driving the plasma display panel, a plurality of circuit boards (4, 13) are provided, and electronic components (E1′, E1″, E2′) making up the drive circuit are mounted separately on the plurality of circuit boards (4, 13).Type: GrantFiled: June 7, 2001Date of Patent: December 21, 2004Assignees: Pioneer Corporation, Pioneer Display Products Corp.Inventors: Koichi Kaneko, Sadao Yokoi, Toshiharu Oishi, Daisuke Takao