Patents by Inventor Toshiyuki TSUBOTA
Toshiyuki TSUBOTA 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: 11536998Abstract: A backlight device is provided and include frame formed of sheet material including at least four bars; first adhesive layer provided on one surface of the bars; reflective sheet attached to frame with first adhesive layer; second adhesive layer is provided on another surface opposed to the one surface of the bars; optical member including lightguide plate disposed on reflective sheet in frame; and light source disposed in frame and configured to emit light to optical member, wherein thickness of second adhesive layer provided on three successive bars of frame along three sides of lightguide plate is greater than thickness of first adhesive layer provided on four bars of frame.Type: GrantFiled: September 3, 2021Date of Patent: December 27, 2022Assignee: JAPAN DISPLAY INC.Inventors: Tetsuro Ochi, Ken Sugiyama, Toshiyuki Tsubota, Kazunari Nishita
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Patent number: 11520178Abstract: According to one embodiment, a display device includes a liquid crystal panel, a case covering a rear surface side of the liquid crystal panel, a backlight device disposed in the case and opposed to the liquid crystal panel with a gap, a first holding member provided on a side plate of the case, and a second holding member including a fixation part attached to the side plate of the case, and a second holding part interposed between an optical sheet and a rear surface of the liquid crystal panel to cover a light source device and an end part of the optical sheet on the light source device side.Type: GrantFiled: July 21, 2021Date of Patent: December 6, 2022Assignee: JAPAN DISPLAY INC.Inventors: Ken Sugiyama, Toshiyuki Tsubota, Rina Yamamoto
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Publication number: 20220276532Abstract: To provide a light source device capable of irradiating a liquid crystal display module with light at uniform luminance and a display device including the light source device. A light source device has a rear vessel a front cover, a light source substrate, a plurality of light-emitting diodes, and a light-diffusing plate. The front cover is located over and overlaps the rear vessel. The light source substrate, the plurality of light-emitting diodes, and the light-diffusing plate are accommodated between the rear vessel and the front cover. The plurality of light-emitting diodes is located over the light source substrate. The light-diffusing plate is located over, overlaps, and is spaced away from the plurality of light-emitting diodes. The rear vessel and the front cover each have a bottom plate and a side plate integrated with the bottom plate. In at least one of the rear vessel and the front cover, a portion of the side plate is bent to form a protruding portion overlapping the bottom plate.Type: ApplicationFiled: March 23, 2020Publication date: September 1, 2022Inventors: Toshiyuki TSUBOTA, Ken SUGIYAMA, Rina YAMAMOTO
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Publication number: 20220252782Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.Type: ApplicationFiled: April 27, 2022Publication date: August 11, 2022Inventors: Kazunari NISHITA, Ken SUGIYAMA, Tetsuro OCHI, Toshiyuki TSUBOTA
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Patent number: 11346997Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.Type: GrantFiled: January 13, 2021Date of Patent: May 31, 2022Assignee: Japan Display Inc.Inventors: Kazunari Nishita, Ken Sugiyama, Tetsuro Ochi, Toshiyuki Tsubota
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Publication number: 20210397035Abstract: A backlight device is provided and include frame formed of sheet material including at least four bars; first adhesive layer provided on one surface of the bars; reflective sheet attached to frame with first adhesive layer; second adhesive layer is provided on another surface opposed to the one surface of the bars; optical member including lightguide plate disposed on reflective sheet in frame; and light source disposed in frame and configured to emit light to optical member, wherein thickness of second adhesive layer provided on three successive bars of frame along three sides of lightguide plate is greater than thickness of first adhesive layer provided on four bars of frame.Type: ApplicationFiled: September 3, 2021Publication date: December 23, 2021Inventors: Tetsuro OCHI, Ken SUGIYAMA, Toshiyuki TSUBOTA, Kazunari NISHITA
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Publication number: 20210349342Abstract: According to one embodiment, a display device includes a liquid crystal panel, a case covering a rear surface side of the liquid crystal panel, a backlight device disposed in the case and opposed to the liquid crystal panel with a gap, a first holding member provided on a side plate of the case, and a second holding member including a fixation part attached to the side plate of the case, and a second holding part interposed between an optical sheet and a rear surface of the liquid crystal panel to cover a light source device and an end part of the optical sheet on the light source device side.Type: ApplicationFiled: July 21, 2021Publication date: November 11, 2021Inventors: Ken SUGIYAMA, Toshiyuki TSUBOTA, Rina YAMAMOTO
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Patent number: 11112632Abstract: A backlight device is provided and includes a frame formed of a sheet material; a first adhesive layer provided on one surface of the frame; a reflective sheet attached to the frame with the first adhesive layer; an optical member disposed on the reflective sheet in the frame; and a light source disposed in the frame and configured to emit light to the optical member, wherein in at least a part of the frame, a width of the frame and a width of the first adhesive layer are equal to each other, and at least an internal surface of the frame and an internal surface of the first adhesive layer are flush with each other.Type: GrantFiled: February 18, 2020Date of Patent: September 7, 2021Assignee: Japan Display Inc.Inventors: Tetsuro Ochi, Ken Sugiyama, Toshiyuki Tsubota, Kazunari Nishita
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Publication number: 20210132287Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.Type: ApplicationFiled: January 13, 2021Publication date: May 6, 2021Inventors: Kazunari NISHITA, Ken SUGIYAMA, Tetsuro OCHI, Toshiyuki TSUBOTA
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Patent number: 10921509Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.Type: GrantFiled: February 6, 2020Date of Patent: February 16, 2021Assignee: Japan Display Inc.Inventors: Kazunari Nishita, Ken Sugiyama, Tetsuro Ochi, Toshiyuki Tsubota
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Patent number: 10901251Abstract: According to one embodiment, a backlight device includes a frame formed of a sheet material, a first adhesive layer provided on one surface of the frame, a reflective sheet attached to the frame with the first adhesive layer, an optical member disposed on the reflective sheet in the frame, and a light source disposed in the frame and configured to emit light to the optical member. In at least a part of the frame, a width of the frame and a width of the first adhesive layer are equal to each other, and at least an external surface of the frame and an external surface of the first adhesive layer are flush with each other.Type: GrantFiled: June 27, 2018Date of Patent: January 26, 2021Assignee: Japan Display Inc.Inventors: Tetsuro Ochi, Ken Sugiyama, Toshiyuki Tsubota, Kazunari Nishita
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Publication number: 20200183220Abstract: A backlight device is provided and includes a frame formed of a sheet material; a first adhesive layer provided on one surface of the frame; a reflective sheet attached to the frame with the first adhesive layer; an optical member disposed on the reflective sheet in the frame; and a light source disposed in the frame and configured to emit light to the optical member, wherein in at least a part of the frame, a width of the frame and a width of the first adhesive layer are equal to each other, and at least an internal surface of the frame and an internal surface of the first adhesive layer are flush with each other.Type: ApplicationFiled: February 18, 2020Publication date: June 11, 2020Inventors: Tetsuro OCHI, Ken SUGIYAMA, Toshiyuki TSUBOTA, Kazunari NISHITA
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Publication number: 20200174179Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.Type: ApplicationFiled: February 6, 2020Publication date: June 4, 2020Inventors: Kazunari Nishita, Ken Sugiyama, Tetsuro Ochi, Toshiyuki Tsubota
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Patent number: 10620366Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.Type: GrantFiled: July 26, 2019Date of Patent: April 14, 2020Assignee: Japan Display Inc.Inventors: Kazunari Nishita, Ken Sugiyama, Tetsuro Ochi, Toshiyuki Tsubota
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Publication number: 20190346619Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.Type: ApplicationFiled: July 26, 2019Publication date: November 14, 2019Inventors: Kazunari Nishita, Ken Sugiyama, Tetsuro Ochi, Toshiyuki Tsubota
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Patent number: 10408994Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.Type: GrantFiled: April 24, 2017Date of Patent: September 10, 2019Assignee: Japan Display Inc.Inventors: Kazunari Nishita, Ken Sugiyama, Tetsuro Ochi, Toshiyuki Tsubota
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Publication number: 20180321543Abstract: According to one embodiment, a backlight device includes a frame formed of a sheet material, a first adhesive layer provided on one surface of the frame, a reflective sheet attached to the frame with the first adhesive layer, an optical member disposed on the reflective sheet in the frame, and a light source disposed in the frame and configured to emit light to the optical member. In at least a part of the frame, a width of the frame and a width of the first adhesive layer are equal to each other, and at least an external surface of the frame and an external surface of the first adhesive layer are flush with each other.Type: ApplicationFiled: June 27, 2018Publication date: November 8, 2018Inventors: Tetsuro OCHI, Ken SUGIYAMA, Toshiyuki TSUBOTA, Kazunari NISHITA
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Patent number: 10025128Abstract: According to one embodiment, a backlight device includes a frame formed of a sheet material, a first adhesive layer provided on one surface of the frame, a reflective sheet attached to the frame with the first adhesive layer, an optical member disposed on the reflective sheet in the frame, and a light source disposed in the frame and configured to emit light to the optical member. In at least a part of the frame, a width of the frame and a width of the first adhesive layer are equal to each other, and at least an external surface of the frame and an external surface of the first adhesive layer are flush with each other.Type: GrantFiled: November 17, 2016Date of Patent: July 17, 2018Assignee: Japan Display Inc.Inventors: Tetsuro Ochi, Ken Sugiyama, Toshiyuki Tsubota, Kazunari Nishita
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Publication number: 20170315291Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.Type: ApplicationFiled: April 24, 2017Publication date: November 2, 2017Inventors: Kazunari Nishita, Ken Sugiyama, Tetsuro Ochi, Toshiyuki Tsubota
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Publication number: 20170139123Abstract: According to one embodiment, a backlight device includes a frame formed of a sheet material, a first adhesive layer provided on one surface of the frame, a reflective sheet attached to the frame with the first adhesive layer, an optical member disposed on the reflective sheet in the frame, and a light source disposed in the frame and configured to emit light to the optical member. In at least a part of the frame, a width of the frame and a width of the first adhesive layer are equal to each other, and at least an external surface of the frame and an external surface of the first adhesive layer are flush with each other.Type: ApplicationFiled: November 17, 2016Publication date: May 18, 2017Inventors: Tetsuro OCHI, Ken SUGIYAMA, Toshiyuki TSUBOTA, Kazunari NISHITA