Patents by Inventor Tetsuo Fukami
Tetsuo Fukami 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: 11398198Abstract: A display device includes a first display panel disposed closer to an observer and a second display panel disposed farther from the observer than the first display panel. An image display region of the second display panel is larger than an image display region of the first display panel.Type: GrantFiled: February 8, 2021Date of Patent: July 26, 2022Assignees: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., PASONA KNOWLEDGE PARTNERS INC.Inventors: Toshikazu Koudo, Tetsuo Fukami
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Patent number: 11287709Abstract: An active matrix substrate includes: a signal line provided in an image display region; and a terminal provided in a frame region and electrically connected to the signal line. The terminal includes: a metal layer; a first contact layer located closer to one side in a lamination direction than the metal layer, and electrically connected to the metal layer, a first interlayer insulating layer located closer to the one side in the lamination direction than the first contact layer; and a second contact layer located closer to the one side in the lamination direction than the first interlayer insulating layer, and electrically connected to the first contact layer through a first through-hole formed in the first interlayer insulating layer. The first contact layer is made of a transparent metal oxide or a semiconductor material doped with impurities.Type: GrantFiled: February 6, 2020Date of Patent: March 29, 2022Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Tetsuo Fukami, Kenichirou Nishida, Ryuuta Watanabe, Masahiro Ishii
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Patent number: 11163391Abstract: Provided is a display panel including: a plurality of pixel electrodes divided into a plurality of groups; and a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes included in one of the plurality of groups. Each of a plurality of sensor electrode lines overlaps with corresponding one of a plurality of data signal lines in plan view. The plurality of sensor electrode lines and each of the plurality of common electrodes overlap each other in plan view. The each of the plurality of common electrodes is electrically connected to the plurality of sensor electrode lines. At least one insulating film is formed between each of a region between the data signal lines and the sensor electrode lines, a region between the sensor electrode lines and the common electrodes, and a region between the common electrodes and the pixel electrodes.Type: GrantFiled: March 23, 2020Date of Patent: November 2, 2021Assignees: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., PANASONIC CORPORATIONInventors: Toshiyuki Aoyama, Tetsuo Fukami, Daisuke Kajita, Kazushige Takagi
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Patent number: 11112627Abstract: Disclosed herein are a viewing angle control unit, a substrate assembly of the viewing angle control unit, and a display assembly. The viewing angle control unit includes two substrate assemblies, a liquid crystal (LC) component disposed between the substrate assemblies, and a seal component interconnecting the substrate assemblies and surrounding the LC component. At least one of the substrate assemblies includes a transparent base substrate, a transparent electrode layer disposed on the transparent base substrate, and an alignment film disposed on the transparent electrode layer. The transparent electrode layer has a groove extending along at least part of the seal component, so as to mitigate excessive spreading of a material of the alignment film during manufacturing of the viewing angle control unit. The display assembly includes the viewing angle control unit.Type: GrantFiled: February 18, 2020Date of Patent: September 7, 2021Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Masahiro Ishii, Tetsuo Fukami, Yukinori Kayama
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Patent number: 11086151Abstract: Provide are a viewing angle control device, a method of manufacturing the same, and a display panel. The viewing angle control device includes a first substrate and a second substrate disposed opposite each other; a first electrode and a second electrode disposed respectively on inner surfaces of the first substrate and the second substrate opposite each other; a first alignment film disposed on an inner surface of the first electrode opposite the second electrode; and a liquid crystal layer disposed between the first substrate and the second substrate. A groove is provided in a region of the inner surface of the first electrode, and a conductor that is electrically connected to the first electrode and has lower resistivity than the first electrode is provided at the groove or at a periphery of the groove.Type: GrantFiled: February 20, 2020Date of Patent: August 10, 2021Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Masahiro Ishii, Tetsuo Fukami, Yukinori Kayama
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Publication number: 20210223596Abstract: Disclosed herein are a viewing angle control unit, a substrate assembly of the viewing angle control unit, and a display assembly. The viewing angle control unit includes two substrate assemblies, a liquid crystal (LC) component disposed between the substrate assemblies, and a seal component interconnecting the substrate assemblies and surrounding the LC component. At least one of the substrate assemblies includes a transparent base substrate, a transparent electrode layer disposed on the transparent base substrate, and an alignment film disposed on the transparent electrode layer. The transparent electrode layer has a groove extending along at least part of the seal component, so as to mitigate excessive spreading of a material of the alignment film during manufacturing of the viewing angle control unit. The display assembly includes the viewing angle control unit.Type: ApplicationFiled: February 18, 2020Publication date: July 22, 2021Inventors: Masahiro ISHII, Tetsuo FUKAMI, Yukinori KAYAMA
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Publication number: 20210191189Abstract: The present disclosure relates to a viewing angle control unit and a display unit including the same, in which the viewing angle control unit includes: a first substrate disposed on a side of the surface of the liquid crystal display unit; a second substrate which opposes the first substrate; a liquid crystal layer arranged between the first substrate and the second substrate; and a seal assembly which is disposed between the first substrate and the second substrate and surrounds the liquid crystal layer and seals and separates the liquid crystal layer from the outside. At least part of the seal assembly is constituted by a seal section and a shade section which are stacked in a direction substantially perpendicular to opposing surfaces of the first substrate and the second substrate.Type: ApplicationFiled: February 19, 2020Publication date: June 24, 2021Inventors: Masahiro ISHII, Tetsuo FUKAMI, Yukinori KAYAMA
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Publication number: 20210191167Abstract: Provide are a viewing angle control device, a method of manufacturing the same, and a display panel. The viewing angle control device includes a first substrate and a second substrate disposed opposite each other; a first electrode and a second electrode disposed respectively on inner surfaces of the first substrate and the second substrate opposite each other; a first alignment film disposed on an inner surface of the first electrode opposite the second electrode; and a liquid crystal layer disposed between the first substrate and the second substrate. A groove is provided in a region of the inner surface of the first electrode, and a conductor that is electrically connected to the first electrode and has lower resistivity than the first electrode is provided at the groove or at a periphery of the groove.Type: ApplicationFiled: February 20, 2020Publication date: June 24, 2021Inventors: Masahiro ISHII, Tetsuo FUKAMI, Yukinori KAYAMA
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Patent number: 11036323Abstract: A display device comprising: a plurality of source lines extending in a first direction; a plurality of gate lines extending in a second direction intersecting the first direction; a plurality of pixel electrodes arrayed in the first direction and the second direction; a plurality of common electrodes disposed corresponding to a plurality of touch regions arrayed in the first direction and the second direction, the plurality of common electrodes being disposed while opposed to the plurality of pixel electrodes; a plurality of sensor electrode lines electrically connected to the plurality of common electrodes; a plurality of inspection signal lines electrically connected to the plurality of common electrodes through a plurality of inspection thin film transistors; and an inspection gate line connected to a gate electrode of each of the plurality of inspection thin film transistors.Type: GrantFiled: January 21, 2020Date of Patent: June 15, 2021Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Tetsuo Fukami, Masahiro Ishii
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Publication number: 20210166646Abstract: A display device includes a first display panel disposed closer to an observer and a second display panel disposed farther from the observer than the first display panel. An image display region of the second display panel is larger than an image display region of the first display panel.Type: ApplicationFiled: February 8, 2021Publication date: June 3, 2021Inventors: Toshikazu KOUDO, Tetsuo FUKAMI
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Patent number: 11022834Abstract: The present disclosure relates to a viewing angle control unit and a display unit including the same, in which the viewing angle control unit includes: a first substrate disposed on a side of the surface of the liquid crystal display unit; a second substrate which opposes the first substrate; a liquid crystal layer arranged between the first substrate and the second substrate; and a seal assembly which is disposed between the first substrate and the second substrate and surrounds the liquid crystal layer and seals and separates the liquid crystal layer from the outside. At least part of the seal assembly is constituted by a seal section and a shade section which are stacked in a direction substantially perpendicular to opposing surfaces of the first substrate and the second substrate.Type: GrantFiled: February 19, 2020Date of Patent: June 1, 2021Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Masahiro Ishii, Tetsuo Fukami, Yukinori Kayama
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Patent number: 10930230Abstract: A display device includes a first display panel disposed closer to an observer and a second display panel disposed farther from the observer than the first display panel. An image display region of the second display panel is larger than an image display region of the first display panel.Type: GrantFiled: January 10, 2019Date of Patent: February 23, 2021Assignees: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., PASONA KNOWLEDGE PARTNER INC.Inventors: Toshikazu Koudo, Tetsuo Fukami
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Patent number: 10891892Abstract: A display device comprises: selector transistors in each of which one of conductive electrodes is connected to each of ends of gate lines, the selector transistor being divided into a plurality; selection signal supplying wirings each of which is provided in each block, and connected to each control electrode of the selector transistors corresponding to the block; gate voltage supplying wirings that are commonly connected to the other conductive electrode of each of the selector transistors; a gate driver that sequentially supplies a gate voltage to the gate voltage supplying wirings while supplying a control voltage to the selection signal supplying wiring in order to on or off the selector transistor, and a light shielding part that is disposed between at least the two adjacent blocks.Type: GrantFiled: September 29, 2016Date of Patent: January 12, 2021Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tetsuo Fukami, Masahiro Ishii
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Patent number: 10884296Abstract: A display device comprises: a display panel in which a plurality of pixels are arranged in a matrix form, wherein the plurality of pixels include a plurality of first pixels and a plurality of second pixels arrayed at a pitch different from an array pitch of the plurality of first pixels, and a number of the plurality of first pixels is different from a number of the plurality of second pixels.Type: GrantFiled: May 15, 2019Date of Patent: January 5, 2021Assignees: Panasonic Liquid Crystal Display Co., Ltd., Pasona Knowledge Partner, Inc.Inventor: Tetsuo Fukami
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Publication number: 20200278587Abstract: An active matrix substrate includes: a signal line provided in an image display region; and a terminal provided in a frame region and electrically connected to the signal line. The terminal includes: a metal layer; a first contact layer located closer to one side in a lamination direction than the metal layer, and electrically connected to the metal layer, a first interlayer insulating layer located closer to the one side in the lamination direction than the first contact layer; and a second contact layer located closer to the one side in the lamination direction than the first interlayer insulating layer, and electrically connected to the first contact layer through a first through-hole formed in the first interlayer insulating layer. The first contact layer is made of a transparent metal oxide or a semiconductor material doped with impurities.Type: ApplicationFiled: February 6, 2020Publication date: September 3, 2020Inventors: Tetsuo FUKAMI, Kenichirou NISHIDA, Ryuuta WATANABE, Masahiro ISHII
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Publication number: 20200241679Abstract: A display device comprising: a plurality of source lines extending in a first direction; a plurality of gate lines extending in a second direction intersecting the first direction; a plurality of pixel electrodes arrayed in the first direction and the second direction; a plurality of common electrodes disposed corresponding to a plurality of touch regions arrayed in the first direction and the second direction, the plurality of common electrodes being disposed while opposed to the plurality of pixel electrodes; a plurality of sensor electrode lines electrically connected to the plurality of common electrodes; a plurality of inspection signal lines electrically connected to the plurality of common electrodes through a plurality of inspection thin film transistors; and an inspection gate line connected to a gate electrode of each of the plurality of inspection thin film transistors.Type: ApplicationFiled: January 21, 2020Publication date: July 30, 2020Inventors: Tetsuo FUKAMI, Masahiro ISHII
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Publication number: 20200218396Abstract: Provided is a display panel including: a plurality of pixel electrodes divided into a plurality of groups; and a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes included in one of the plurality of groups. Each of a plurality of sensor electrode lines overlaps with corresponding one of a plurality of data signal lines in plan view. The plurality of sensor electrode lines and each of the plurality of common electrodes overlap each other in plan view. The each of the plurality of common electrodes is electrically connected to the plurality of sensor electrode lines. At least one insulating film is formed between each of a region between the data signal lines and the sensor electrode lines, a region between the sensor electrode lines and the common electrodes, and a region between the common electrodes and the pixel electrodes.Type: ApplicationFiled: March 23, 2020Publication date: July 9, 2020Inventors: Toshiyuki AOYAMA, Tetsuo FUKAMI, Daisuke KAJITA, Kazushige TAKAGI
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Patent number: 10692457Abstract: A driving circuit including an output circuit that outputs a signal to a lead line electrically connected to a signal line provided in a display panel; and an output transistor that is provided in the output circuit and connected to an output terminal of the output circuit. An on-resistance value of the output transistor is set according to a resistance value of the lead line electrically connected to the output transistor.Type: GrantFiled: January 8, 2018Date of Patent: June 23, 2020Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yoshihiro Imajo, Masahiro Ishii, Kenta Endo, Tetsuo Fukami
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Patent number: 10635231Abstract: Provided is a display panel including: a plurality of pixel electrodes divided into a plurality of groups; and a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes included in one of the plurality of groups. Each of a plurality of sensor electrode lines overlaps with corresponding one of a plurality of data signal lines in plan view. The plurality of sensor electrode lines and each of the plurality of common electrodes overlap each other in plan view. The each of the plurality of common electrodes is electrically connected to the plurality of sensor electrode lines. At least one insulating film is formed between each of a region between the data signal lines and the sensor electrode lines, a region between the sensor electrode lines and the common electrodes, and a region between the common electrodes and the pixel electrodes.Type: GrantFiled: April 25, 2019Date of Patent: April 28, 2020Assignees: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., PANASONIC CORPORATIONInventors: Toshiyuki Aoyama, Tetsuo Fukami, Daisuke Kajita, Kazushige Takagi
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Publication number: 20190265560Abstract: A display device comprises: a display panel in which a plurality of pixels are arranged in a matrix form, wherein the plurality of pixels include a plurality of first pixels and a plurality of second pixels arrayed at a pitch different from an array pitch of the plurality of first pixels, and a number of the plurality of first pixels is different from a number of the plurality of second pixels.Type: ApplicationFiled: May 15, 2019Publication date: August 29, 2019Inventor: Tetsuo FUKAMI