Patents by Inventor Shimon Itakura
Shimon Itakura 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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Publication number: 20140226364Abstract: A backlight device includes: a light guide plate; a pair of light sources which is provided along left and right sides of the light guide plate respectively; and a frame which defines positions of the light guide plate and the light sources, wherein the position of the light guide plate with respect to the light sources is defined by a fixing member provided to the frame on upper and lower sides of the light guide plate, and the fixing member biases the light guide plate toward left and right sides of the light guide plate on the upper and lower sides of the light guide plate.Type: ApplicationFiled: January 30, 2014Publication date: August 14, 2014Applicant: Japan Display Inc.Inventors: Shimon ITAKURA, Kazuyoshi TANAKA, Kengo KOBAYASHI, Yuzo OTA
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Publication number: 20140226108Abstract: A liquid crystal display device includes a liquid crystal display panel formed by a pair of transparent substrates facing each other with a liquid crystal layer therebetween, and a backlight device mounted on a back surface of the liquid crystal display panel. The backlight device includes a light source in which multiple light emitting elements are arranged in parallel on a surface of a substrate, and a light guide plate for converting light from the light source that is provided in the periphery of the light guide plate, into planar light (backlight beam) and emitting the planar light. The light guide plate has a concave groove portion along the periphery. At least the light emitting elements are inserted into the groove portion to integrate the light guide plate and the light source into a single unit.Type: ApplicationFiled: February 7, 2014Publication date: August 14, 2014Applicant: JAPAN DISPLAY INC.Inventors: Shimon ITAKURA, Takayuki OTA
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Patent number: 8797481Abstract: Provided is a liquid crystal display device, including: a light guide plate; first light-emitting diodes and a first connector, which are opposed to a first side surface of the light guide plate; a first substrate on which the first light-emitting diodes and the first connector are mounted; second light-emitting diodes and a second connector, which are opposed to a second side surface of the light guide plate, the second side surface being on a side opposite to the first side surface; and a second substrate on which the second light-emitting diodes and the second connector are mounted, in which: the first connector is opposed to any one of the second light-emitting diodes; the second connector is opposed to any one of the first light-emitting diodes; and the first connector and the second connector are disposed without being opposed to each other.Type: GrantFiled: April 4, 2011Date of Patent: August 5, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Shimon Itakura, Masaki Tsubokura
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Publication number: 20130033658Abstract: In a liquid crystal display device in which a source board (56) connected to a liquid crystal panel by a flex circuit is mounted onto a rear surface of a lower metal frame (54), disconnection in the flex circuit or at a connection portion thereof is avoided. The source board (56) includes a conductor pattern (110) serving as a ground electrode held in contact with the rear surface of the frame (54). A support member (60) for supporting the circuit board (56) is fixed to the frame (54) and includes a cantilever (62) which extends above the source board (56), for pressing the source board (56) against the frame (54). The cantilever (62) enables displacement of the source board (56) along the rear surface of the frame (54) while maintaining a state in which the conductor pattern (110) is held in contact with the frame (54).Type: ApplicationFiled: August 2, 2012Publication date: February 7, 2013Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Takashi KATO, Yukihide ODE, Shunichi MATSUMOTO, Masato YANAI, Shimon ITAKURA, Tomohiro MAEYAMA
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Patent number: 8269922Abstract: Provided is a liquid crystal display device including: a liquid crystal display panel; a fluorescent tube disposed on a side opposite to a display surface of the liquid crystal display panel; an electrode holder for retaining the fluorescent tube; a frame to which the electrode holder is attached; a light reflection cover including one of a hole and a notch for allowing the fluorescent tube to pass therethrough, the light reflection cover covering a part of the fluorescent tube and an area of the frame on an outer side of the fluorescent tube; and an elastic body provided on the light reflection cover so as to face the fluorescent tube in a non-contact manner.Type: GrantFiled: September 16, 2010Date of Patent: September 18, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Shimon Itakura, Fumihiko Hieda, Makoto Fujimoto
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Patent number: 8068193Abstract: An object of the present invention is to provide a liquid crystal display device including a back light in which an electrode support member can be reliably arranged on the base side without concern for thermal expansion.Type: GrantFiled: February 21, 2008Date of Patent: November 29, 2011Assignees: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.Inventors: Yuji Azuma, Masaki Tsubokura, Shimon Itakura, Shiro Ueda
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Patent number: 8054399Abstract: An object of the invention is to provide a liquid crystal display of which a reduction in thickness can be realized without increasing the thickness of a frame member configuring a backlight. Also, another object is to provide a liquid crystal display which secures a sufficient property of insulation from electrode fittings and lamp cables.Type: GrantFiled: December 30, 2009Date of Patent: November 8, 2011Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Shimon Itakura, Fumihiko Hieda, Masaki Tsubokura
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Publication number: 20110242458Abstract: Provided is a liquid crystal display device, including: alight guide plate; first light-emitting diodes and a first connector, which are opposed to a first side surface of the light guide plate; a first substrate on which the first light-emitting diodes and the first connector are mounted; second light-emitting diodes and a second connector, which are opposed to a second side surface of the light guide plate, the second side surface being on a side opposite to the first side surface; and a second substrate on which the second light-emitting diodes and the second connector are mounted, in which: the first connector is opposed to any one of the second light-emitting diodes; the second connector is opposed to any one of the first light-emitting diodes; and the first connector and the second connector are disposed without being opposed to each other.Type: ApplicationFiled: April 4, 2011Publication date: October 6, 2011Inventors: Shimon ITAKURA, Masaki Tsubokura
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Patent number: 7961268Abstract: The present invention provides a liquid crystal display device which can enhance display quality and reliability by preventing the intrusion of foreign materials to a display screen of a liquid crystal display panel thus preventing the adhesion of the foreign materials to the display screen of the liquid crystal display panel. On an upper surface of a peripheral portion of a split mold frame housing a liquid crystal display panel, rubber cushions which are split in four are arranged at corner portions of the peripheral portion in an adhesive manner. With respect to the split portions of the rubber cushions at the corner portion, on a long-side mold frame, extending portions formed by extending both end portions of the long-side rubber cushion larger than a predetermined length are integrally formed and are arranged in an adhesive manner. On a short-side mold frame, a short-side rubber cushion having a predetermined length is arranged.Type: GrantFiled: February 8, 2008Date of Patent: June 14, 2011Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yuji Azuma, Masaki Tsubokura, Shimon Itakura, Seigo Abo
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Patent number: 7944518Abstract: A liquid crystal display device includes a liquid crystal display panel, a backlight and a power supply controlling circuit substrate. The backlight has a rectangular shaped frame member with long and short sides, light sources in rod form within the frame member, and first and second electrode supporting members electrically connected to opposite ends of the light sources. A wire guide member is arranged along one long side of the frame member and holds a wire for electrically connecting at least one of the first and second electrode supporting members to the power supply controlling circuit substrate. The wire guide member has a wire securing portion where the wire is secured and a temporary wire securing portion which at least temporarily secures the wire running between the wire securing portion and the power supply controlling circuit substrate.Type: GrantFiled: August 29, 2008Date of Patent: May 17, 2011Assignees: Hitachi Displays, Ltd., IPS Alpha Technology, Ltd.Inventors: Masaki Tsubokura, Shimon Itakura
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Patent number: 7932874Abstract: The present invention aims at the lowering of an image quality of an outer peripheral portion of an image display region. For this end, in a display device in which a plurality of display panels are arranged from a front side to a depth side in an overlapped manner and an image is displayed on the respective display panels, the respective display panels have regions which allow the image to be displayed thereon (image display regions) broadened toward the depth-side display panel from the front-side display panel.Type: GrantFiled: July 7, 2006Date of Patent: April 26, 2011Assignee: Hitachi Displays, Ltd.Inventors: Nagatoshi Kurahashi, Takayuki Ota, Shimon Itakura
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Publication number: 20110075066Abstract: Provided is a liquid crystal display device including: a liquid crystal display panel; a fluorescent tube disposed on a side opposite to a display surface of the liquid crystal display panel; an electrode holder for retaining the fluorescent tube; a frame to which the electrode holder is attached; a light reflection cover including one of a hole and a notch for allowing the fluorescent tube to pass therethrough, the light reflection cover covering a part of the fluorescent tube and an area of the frame on an outer side of the fluorescent tube; and an elastic body provided on the light reflection cover so as to face the fluorescent tube in a non-contact manner.Type: ApplicationFiled: September 16, 2010Publication date: March 31, 2011Inventors: Shimon Itakura, Fumihiko Hieda, Makoto Fujimoto
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Patent number: 7916239Abstract: To provide a liquid crystal display device where supports for fluorescent lamps can be prevented from vibrating without affecting the ease of attachment of the supports for fluorescent lamps to the frame for the backlight. A liquid crystal display device having: a liquid crystal display panel; and a backlight having a light source for illuminating the liquid crystal display panel is characterized in that said backlight comprises at least a number of fluorescent lamps in rod form aligned in a plane facing said liquid crystal display panel, supports for fluorescent lamps for supporting the fluorescent lamps in rod form, and a frame to which the supports for fluorescent lamps are secured, and said supports for fluorescent lamps have an engaging portion for insertion into a hole created in said frame and the surface of said supports for fluorescent lamps where said engaging portion is formed has protrusions.Type: GrantFiled: October 22, 2008Date of Patent: March 29, 2011Assignees: Hitachi Displays, Ltd., IPS Alpha Technology, Ltd.Inventors: Masaki Tsubokura, Shimon Itakura
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Publication number: 20110063540Abstract: Provided is a liquid crystal display device including a liquid crystal display panel, a fluorescent tube, a holder for retaining the fluorescent tube, and a frame to which the holder is attached. The holder includes an attachment portion for attaching to the frame, and a retaining portion for the fluorescent tube, the retaining portion extending from the attachment portion and facing the frame in a non-contact manner. The retaining portion and the frame have a space formed therebetween.Type: ApplicationFiled: September 9, 2010Publication date: March 17, 2011Inventors: Hiroshi OBATA, Shimon Itakura, Tadatomo Akutsu, Takashi Kato
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Patent number: 7798671Abstract: In a liquid crystal TV, there is provided a direct back light for increasing brightness in the vicinity of the center of a screen. Plural fluorescent tubes are used for backlight, and the respective two fluorescent tubes are paired and driven. The arrangement intervals of the respective pairs are made smallest in the vicinity of the center of the screen to increase the brightness in the vicinity of the center of the screen. The use of the paired fluorescent tubes is to alleviate a variation of the brightness in each of the fluorescent tubes.Type: GrantFiled: August 10, 2006Date of Patent: September 21, 2010Assignee: Hitachi Displays, Ltd.Inventors: Takayuki Ota, Shimon Itakura, Naotoshi Sumiya
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Publication number: 20100171899Abstract: An object of the invention is to provide a liquid crystal display of which a reduction in thickness can be realized without increasing the thickness of a frame member configuring a backlight. Also, another object is to provide a liquid crystal display which secures a sufficient property of insulation from electrode fittings and lamp cables.Type: ApplicationFiled: December 30, 2009Publication date: July 8, 2010Inventors: Shimon ITAKURA, Fumihiko HIEDA, Masaki TSUBOKURA
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Patent number: 7746419Abstract: A liquid crystal display device of the present invention includes a liquid crystal display panel, and a backlight arranged on a back surface of the liquid crystal display panel. The backlight includes a plurality of rod-shaped light sources, electrode fittings for holding the rod-shaped light sources, and side wall plates covering the electrode fittings. The electrode fittings are connected to a connection portion extending in the parallel-arrangement direction of the rod-shaped light sources. The side wall plate includes a plurality of projecting members arranged in parallel to each other in the extending direction of the connection portion. The connection portion includes positions which are brought into contact with the projecting members and portions which are not brought into contact with the projecting members. By adopting the above-mentioned constitution, the liquid crystal display device can reduce squeals and the like.Type: GrantFiled: June 11, 2009Date of Patent: June 29, 2010Assignees: IPS Alpha Technology, Ltd., Hitachi Display Devices, Ltd.Inventors: Yuji Azuma, Shimon Itakura
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Patent number: 7705934Abstract: The present invention prevents a displayed three-dimensional stereoscopic image from being darkened in a three-dimensional display device of a DFD type. The present invention provides a three-dimensional display device in which at least one of a plurality of display panels is formed of a display panel having pixels each of which includes color filters having the higher transmissivity than color filters (basic color filters) which express colors of an image or transparent windows.Type: GrantFiled: May 26, 2006Date of Patent: April 27, 2010Assignee: Hitachi Displays, Ltd.Inventors: Nagatoshi Kurahashi, Takayuki Ota, Shimon Itakura, Ryutato Oke
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Patent number: 7701528Abstract: In a joint portion of a corner portion at which a raised portion of a side wall portion of a reflection sheet which is mounted on a back surface plate and a side wall portion of a side mold frame intersect each other, an end portion of the side mold frame is formed in a state that the end portion of the side mold frame overlaps the side wall portion of the reflection sheet. Due to such a constitution, a gap which is formed by a displacement of the reflection sheet is closed and hence, it is possible to suppress the intrusion of dusts into the inside of a liquid crystal display device.Type: GrantFiled: December 14, 2007Date of Patent: April 20, 2010Assignee: Hitachi Displays, Ltd.Inventors: Yuji Azuma, Masaki Tsubokura, Shimon Itakura
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Publication number: 20090256990Abstract: A liquid crystal display device of the present invention includes a liquid crystal display panel, and a backlight arranged on a back surface of the liquid crystal display panel. The backlight includes a plurality of rod-shaped light sources, electrode fittings for holding the rod-shaped light sources, and side wall plates covering the electrode fittings. The electrode fittings are connected to a connection portion extending in the parallel-arrangement direction of the rod-shaped light sources. The side wall plate includes a plurality of projecting members arranged in parallel to each other in the extending direction of the connection portion. The connection portion includes positions which are brought into contact with the projecting members and portions which are not brought into contact with the projecting members. By adopting the above-mentioned constitution, the liquid crystal display device can reduce squeals and the like.Type: ApplicationFiled: June 11, 2009Publication date: October 15, 2009Inventors: Yuji Azuma, Shimon Itakura