Patents by Inventor Hiroko Hayata
Hiroko Hayata 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: 9372375Abstract: A display device includes a TFT substrate with gate signal lines, drain signal lines, thin-film transistors connected thereto, a gate driver connected to the gate signal lines, a drain driver having output terminals connected to drain signal lines, and a film substrate having first wirings. The first wirings are disposed between the drain driver and the film substrate. The drain driver is mounted on the film substrate, and the output terminals are connected to the first wirings between the film substrate and the drain driver. The output terminal includes first group terminals formed in parallel with a longer edge of the drain driver, and second group terminals formed in parallel with the longer edge and disposed between the loner edge and the first group terminals.Type: GrantFiled: October 10, 2013Date of Patent: June 21, 2016Assignees: JAPAN DISPLAY INC., PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Mitsuru Goto, Hiroko Hayata
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Publication number: 20140036216Abstract: A display device includes a TFT substrate with gate signal lines, drain signal lines, thin-film transistors connected thereto, a gate driver connected to the gate signal lines, a drain driver having output terminals connected to drain signal lines, and a film substrate having first wirings. The first wirings are disposed between the drain driver and the film substrate. The drain driver is mounted on the film substrate, and the output terminals are connected to the first wirings between the film substrate and the drain driver. The output terminal includes first group terminals formed in parallel with a longer edge of the drain driver, and second group terminals formed in parallel with the longer edge and disposed between the loner edge and the first group terminals.Type: ApplicationFiled: October 10, 2013Publication date: February 6, 2014Applicants: Panasonic Liquid Crystal Display Co., Ltd., Japan Displays Inc.Inventors: Mitsuru GOTO, Hiroko HAYATA
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Publication number: 20120327050Abstract: A display device includes a TFT substrate with gate signal lines, drain signal lines, thin-film transistors connected thereto, a gate driver connected to the gate signal lines, a drain driver having output terminals connected to drain signal lines, and a film substrate having first wirings. The first wirings are disposed between the drain driver and the film substrate. The drain driver is mounted on the film substrate, and the output terminals are connected to the first wirings between the film substrate and the drain driver. The output terminal includes first group terminals formed in parallel with a longer edge of the drain driver, and second group terminals formed in parallel with the longer edge and disposed between the loner edge and the first group terminals.Type: ApplicationFiled: September 5, 2012Publication date: December 27, 2012Inventors: Mitsuru GOTO, Hiroko Hayata
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Patent number: 8299997Abstract: A display device includes a TFT substrate with gate signal lines, drain signal lines, thin-film transistors connected thereto, a gate driver connected to the gate signal lines, a drain driver having output terminals connected to drain signal lines, and a film substrate having first wirings. The first wirings are disposed between the drain driver and the film substrate. The drain driver is mounted on the film substrate, and the output terminals are connected to the first wirings between the film substrate and the drain driver. The output terminal includes first group terminals formed in parallel with a longer edge of the drain driver, and second group terminals formed in parallel with the longer edge and disposed between the loner edge and the first group terminals.Type: GrantFiled: May 30, 2008Date of Patent: October 30, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Mitsuru Goto, Hiroko Hayata
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Patent number: 8164731Abstract: The present invention provides a liquid crystal display device which can obviate cutting off of a peripheral region of the liquid crystal display device which is provided with an inspection circuit and can surely perform the inspection of an image display even when the peripheral region is narrowed. On a substrate of the liquid crystal display device, a pixel region which is comprised of a plurality of gate lines and a plurality of drain lines and a peripheral region which surrounds the pixel region are formed. A turn-on inspection terminal of the liquid crystal display device are formed on the peripheral region and a semiconductor chip for driving liquid crystal is formed on the inspection terminal. The semiconductor chip is electrically insulated from the inspection terminal.Type: GrantFiled: April 28, 2011Date of Patent: April 24, 2012Assignees: Hitachi Displays , Ltd., Hitachi Device Engineering Co., LtdInventors: Hiroko Hayata, Nobuyuki Ishige, Hitoshi Komeno
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Publication number: 20110205480Abstract: The present invention provides a liquid crystal display device which can obviate cutting off of a peripheral region of the liquid crystal display device which is provided with an inspection circuit and can surely perform the inspection of an image display even when the peripheral region is narrowed. On a substrate of the liquid crystal display device, a pixel region which is comprised of a plurality of gate lines and a plurality of drain lines and a peripheral region which surrounds the pixel region are formed. A turn-on inspection terminal of the liquid crystal display device are formed on the peripheral region and a semiconductor chip for driving liquid crystal is formed on the inspection terminal. The semiconductor chip is electrically insulated from the inspection terminal.Type: ApplicationFiled: April 28, 2011Publication date: August 25, 2011Inventors: Hiroko Hayata, Nobuyuki Ishige, Hitoshi Komeno
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Patent number: 7995173Abstract: To provide a liquid crystal display device to suitably perform color balance adjustment. For this, the liquid crystal display device includes pixel regions each including a light reflection portion and a light transmission portion on a liquid-crystal-side surface of one substrate out of respective substrates arranged to face each other in an opposed manner while sandwiching liquid crystal therebetween, wherein color filters are formed in pixel regions on a liquid-crystal-side surface of the other substrate out of the respective substrates, and each color filter is provided with an opening or notch at a part of a portion facing the light reflection portion in an opposed manner, material layers having a layer thickness substantially equal to a height of step generated by the color filters in regions facing the opening or notch of each color filter in an opposed manner on the liquid-crystal-side surface of one substrate.Type: GrantFiled: March 5, 2010Date of Patent: August 9, 2011Assignee: Hitachi, Ltd.Inventors: Kouichi Anno, Hiroko Hayata, Tohru Sasaki
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Publication number: 20110141384Abstract: The present invention provides a liquid crystal display device which can obviate cutting off of a peripheral region of the liquid crystal display device which is provided with an inspection circuit and can surely perform the inspection of an image display even when the peripheral region is narrowed. On a substrate of the liquid crystal display device, a pixel region which is comprised of a plurality of gate lines and a plurality of drain lines and a peripheral region which surrounds the pixel region are formed. A turn-on inspection terminal of the liquid crystal display device are formed on the peripheral region and a semiconductor chip for driving liquid crystal is formed on the inspection terminal. The semiconductor chip is electrically insulated from the inspection terminal.Type: ApplicationFiled: February 18, 2011Publication date: June 16, 2011Inventors: Hiroko Hayata, Nobuyuki Ishige, Hitoshi Komeno
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Patent number: 7956976Abstract: The present invention provides a liquid crystal display device which can obviate cutting off of a peripheral region of the liquid crystal display device which is provided with an inspection circuit and can surely perform the inspection of an image display even when the peripheral region is narrowed. On a substrate of the liquid crystal display device, a pixel region which is comprised of a plurality of gate lines and a plurality of drain lines and a peripheral region which surrounds the pixel region are formed. A turn-on inspection terminal of the liquid crystal display device are formed on the peripheral region and a semiconductor chip for driving liquid crystal is formed on the inspection terminal. The semiconductor chip is electrically insulated from the inspection terminal.Type: GrantFiled: February 18, 2011Date of Patent: June 7, 2011Assignees: Hitachi Displays, Ltd., Hitachi Device Engineering Co., Ltd.Inventors: Hiroko Hayata, Nobuyuki Ishige, Hitoshi Komeno
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Patent number: 7916261Abstract: The present invention provides a liquid crystal display device which can obviate cutting off of a peripheral region of the liquid crystal display device which is provided with an inspection circuit and can surely perform the inspection of an image display even when the peripheral region is narrowed. On a substrate of the liquid crystal display device, a pixel region which is comprised of a plurality of gate lines and a plurality of drain lines and a peripheral region which surrounds the pixel region are formed. A turn-on inspection terminal of the liquid crystal display device are formed on the peripheral region and a semiconductor chip for driving liquid crystal is formed on the inspection terminal. The semiconductor chip is electrically insulated from the inspection terminal.Type: GrantFiled: June 22, 2007Date of Patent: March 29, 2011Assignees: Hitachi Displays, Ltd., Hitachi Device Engineering Co., Ltd.Inventors: Hiroko Hayata, Nobuyuki Ishige, Hitoshi Komeno
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Publication number: 20100171911Abstract: To provide a liquid crystal display device to suitably perform color balance adjustment. For this, the liquid crystal display device includes pixel regions each including a light reflection portion and a light transmission portion on a liquid-crystal-side surface of one substrate out of respective substrates arranged to face each other in an opposed manner while sandwiching liquid crystal therebetween, wherein color filters are formed in pixel regions on a liquid-crystal-side surface of the other substrate out of the respective substrates, and each color filter is provided with an opening or notch at a part of a portion facing the light reflection portion in an opposed manner, material layers having a layer thickness substantially equal to a height of step generated by the color filters in regions facing the opening or notch of each color filter in an opposed manner on the liquid-crystal-side surface of one substrate.Type: ApplicationFiled: March 5, 2010Publication date: July 8, 2010Inventors: Kouichi Anno, Hiroko Hayata, Tohru Sasaki
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Patent number: 7750996Abstract: To provide a liquid crystal display device to suitably perform color balance adjustment. For this, the liquid crystal display device includes pixel regions each including a light reflection portion and a light transmission portion on a liquid-crystal-side surface of one substrate out of respective substrates arranged to face each other in an opposed manner while sandwiching liquid crystal therebetween, wherein color filters are formed in pixel regions on a liquid-crystal-side surface of the other substrate out of the respective substrates, and each color filter is provided with an opening or notch at a part of a portion facing the light reflection portion in an opposed manner, material layers having a layer thickness substantially equal to a height of step generated by the color filters in regions facing the opening or notch of each color filter in an opposed manner on the liquid-crystal-side surface of one substrate.Type: GrantFiled: March 26, 2002Date of Patent: July 6, 2010Assignee: Hitachi, Ltd.Inventors: Kouichi Anno, Hiroko Hayata, Tohru Sasaki
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Publication number: 20080231573Abstract: A display device includes a TFT substrate with gate signal lines, drain signal lines, thin-film transistors connected thereto, a gate driver connected to the gate signal lines, a drain driver having output terminals connected to drain signal lines, and a film substrate having first wirings. The first wirings are disposed between the drain driver and the film substrate. The drain driver is mounted on the film substrate, and the output terminals are connected to the first wirings between the film substrate and the drain driver. The output terminal includes first group terminals formed in parallel with a longer edge of the drain driver, and second group terminals formed in parallel with the longer edge and disposed between the loner edge and the first group terminals.Type: ApplicationFiled: May 30, 2008Publication date: September 25, 2008Inventors: Mitsuru GOTO, Hiroko Hayata
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Patent number: 7298449Abstract: A first transparent substrate and a second transparent substrate having such a plurality of protrusions on the liquid crystal layer side as to contact with the first transparent substrate are so fixed by means of a sealant that they bend convexly to the liquid crystal layer. Thus, it is possible to suppress the mura defect of a panel, which might otherwise be caused by the heat radiation from a back light when a liquid crystal display apparatus is driven.Type: GrantFiled: August 10, 2004Date of Patent: November 20, 2007Assignee: Hitachi Displays, Ltd.Inventors: Makoto Tatemura, Hideyuki Honoki, Hiroko Hayata, Masanori Yuki, Keiichiro Ashizawa
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Publication number: 20070252830Abstract: The present invention provides a liquid crystal display device which can obviate cutting off of a peripheral region of the liquid crystal display device which is provided with an inspection circuit and can surely perform the inspection of an image display even when the peripheral region is narrowed. On a substrate of the liquid crystal display device, a pixel region which is comprised of a plurality of gate lines and a plurality of drain lines and a peripheral region which surrounds the pixel region are formed. A turn-on inspection terminal of the liquid crystal display device are formed on the peripheral region and a semiconductor chip for driving liquid crystal is formed on the inspection terminal. The semiconductor chip is electrically insulated from the inspection terminal.Type: ApplicationFiled: June 22, 2007Publication date: November 1, 2007Inventors: Hiroko Hayata, Nobuyuki Ishige, Hitoshi Komeno
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Patent number: 7259817Abstract: The present invention is configured so that it has a first substrate, a second substrate, a liquid crystal layer pinched between the first substrate and second substrate, and a driving unit, wherein a characteristic of a reflectivity versus an applied voltage is a normally closed type and a characteristic of a transmissivity versus an applied voltage is the normally closed type: wherein the first substrate has a common electrode, and an upside polarization plate and upside phase plate on an upper surface; wherein the second substrate has a reflective electrode and transparent electrode connected with an active element, and a downside polarization plate and downside phase plate on a lower surface; wherein the liquid crystal layer has a twist angle not less than 40 degrees and not more than 65 degrees; wherein a retardation of the liquid crystal layer in a reflective display unit is within a range of not less than 230 nm and not more than 300 nm; and wherein a retardation of the liquid crystal layer in a transmType: GrantFiled: August 2, 2002Date of Patent: August 21, 2007Assignee: Hitachi, Ltd.Inventors: Osamu Itou, Hiroko Hayata, Kouichi Anno, Shinichi Komura
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Patent number: 7251009Abstract: The present invention provides a liquid crystal display device which can obviate cutting off of a peripheral region of the liquid crystal display device which is provided with an inspection circuit and can surely perform the inspection of an image display even when the peripheral region is narrowed. On a substrate of the liquid crystal display device, a pixel region which is comprised of a plurality of gate lines and a plurality of drain lines and a peripheral region which surrounds the pixel region are formed. A turn-on inspection terminal of the liquid crystal display device are formed on the peripheral region and a semiconductor chip for driving liquid crystal is formed on the inspection terminal. The semiconductor chip is electrically insulated from the inspection terminal.Type: GrantFiled: March 17, 2005Date of Patent: July 31, 2007Assignees: Hitachi Displays, Ltd., Hitachi Device Engineering Co., Ltd.Inventors: Hiroko Hayata, Nobuyuki Ishige, Hitoshi Komeno
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Publication number: 20060192737Abstract: A liquid crystal display device includes a plurality of pixels, a plurality of image signal lines for applying a plurality of gray scale voltages to the plurality of pixels, and an image signal line drive unit including a film substrate and a semiconductor integrated circuit device formed on the film substrate. The semiconductor integrated circuit includes a plurality of input terminals, a plurality of output terminals, a first terminal, and a second terminal. The film substrate comprises a plurality of first wirings, a plurality of second wirings, and a third wiring. The third wiring and the first terminal are connected between the semiconductor integrated circuit device and the film substrate, and the third wiring and the second terminal are connected between the semiconductor integrated circuit device and the film substrate.Type: ApplicationFiled: April 12, 2006Publication date: August 31, 2006Inventors: Mitsuru Goto, Hiroko Hayata
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Patent number: 7034810Abstract: A liquid crystal display device includes a liquid crystal display element and an image signal line drive unit for supplying a gradation/tone voltage and having a plurality of semiconductor integrated circuit devices. Each semiconductor integrated circuit device has an input circuit unit which is provided at a central portion along a longitudinal direction of the semiconductor integrated circuit device and provided in a short side direction of the semiconductor integrated circuit device. A first output terminal section is provided in the longitudinal direction of the semiconductor integrated circuit device on both sides of a central portion in the short side direction of the semiconductor integrated circuit device of the input circuit unit, and a pair of output circuit units are provided on the both sides of the first output terminal section in the short-side direction of the semiconductor integrated circuit device.Type: GrantFiled: July 17, 2001Date of Patent: April 25, 2006Assignee: Hitachi, Ltd.Inventors: Mitsuru Goto, Hiroko Hayata
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Patent number: 6995812Abstract: The present invention provides a liquid crystal display device which can largely suppress the reduction of contrast which occurs in a light reflection mode of a liquid crystal display device. On a liquid-crystal-side surface of one of substrates which are arranged to face each other in an opposed manner while sandwiching liquid crystal therebetween, the liquid crystal display device includes pixel regions each of which is classified into a light reflection portion and a light transmission portion. On each pixel region, a first light-transmitting pixel electrode which is formed on the light reflection portion and the light transmission portion, a material layer which is formed on a major portion of the light reflection portion, an insulation layer having an opening formed at a portion corresponding to the light transmission portion, and a second pixel electrode which is formed on the light reflection portion and functions as a reflection film are sequentially laminated.Type: GrantFiled: April 26, 2005Date of Patent: February 7, 2006Assignee: Hitachi, Ltd.Inventors: Kouichi Anno, Hiroko Hayata, Tohru Sasaki