Patents by Inventor Takafumi Hashiguchi
Takafumi Hashiguchi 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: 11592949Abstract: The touch panel built-in display includes a first electrode, a second electrode, and a third electrode for detecting the pressed state in which the protective plate is pressed. The first electrode is provided in the peripheral region on the back surface of the protective plate. The second and third electrodes are provided adjacent to each other in the peripheral region on the principal surface of the sensor substrate. That is, the first electrode, the second electrode, and the third electrode are provided in the peripheral region as a configuration for detecting the pressed state.Type: GrantFiled: November 13, 2020Date of Patent: February 28, 2023Assignee: Mitsubishi Electric CorporationInventors: Takafumi Hashiguchi, Tatsuya Nakamura, Yusuke Shimasaki, Takeshi Ono
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Publication number: 20220045418Abstract: An object of the present disclosure is to suppress reduction of a communication distance of a touch screen with a built-in antenna and obtain a high visual quality at a time of constituting a display apparatus by the touch screen. A touch screen with a built-in antenna of the present disclosure is provided on a side of an emission of display light of a display element. The touch screen with the built-in antenna includes a touch panel and an antenna pattern. The antenna pattern includes an antenna wire disposed to overlap with a detectable area in a plan view and made by a repetitive unit pattern. A second pitch which is a pitch of the unit pattern of the antenna wire is different from a first pitch which is a pitch of the unit pattern of each of the first detection wires and each of the second detection wires.Type: ApplicationFiled: May 28, 2021Publication date: February 10, 2022Applicant: Mitsubishi Electric CorporationInventors: Tatsuya NAKAMURA, Takafumi HASHIGUCHI, Seiichiro MORI
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Patent number: 11126049Abstract: The display apparatus includes a plurality of gate lines, a plurality of vertical gate lines orthogonal to the gate lines, and a plurality of connection parts, each of which connects one of the gate lines and corresponding one of the vertical gate lines. The plurality of vertical gate lines extend from a first side in the display region. At least the gate line disposed closest to the first side is connected to the corresponding vertical gate line by a plurality of connection parts disposed at two or more locations.Type: GrantFiled: November 26, 2019Date of Patent: September 21, 2021Assignee: Trivale Technologies LLCInventors: Tatsuya Baba, Takafumi Hashiguchi, Naruhito Hoka, Naoya Hirata
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Publication number: 20210157456Abstract: The touch panel built-in display includes a first electrode, a second electrode, and a third electrode for detecting the pressed state in which the protective plate is pressed. The first electrode is provided in the peripheral region on the back surface of the protective plate. The second and third electrodes are provided adjacent to each other in the peripheral region on the principal surface of the sensor substrate. That is, the first electrode, the second electrode, and the third electrode are provided in the peripheral region as a configuration for detecting the pressed state.Type: ApplicationFiled: November 13, 2020Publication date: May 27, 2021Applicant: Mitsubishi Electric CorporationInventors: Takafumi HASHIGUCHI, Tatsuya NAKAMURA, Yusuke SHIMASAKI, Takeshi ONO
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Patent number: 10852610Abstract: An opening insulation film covers a substrate and is in contact with a side surface of a gate electrode. The opening insulation film is provided with a first opening portion having a side surface on the gate electrode. A gate insulation film made of an oxide insulator is on the gate electrode and the opening insulation film. A semiconductor channel film made of an oxide semiconductor is on the gate insulation film and is encompassed by the first opening portion. Source and drain electrodes are on the semiconductor channel film. A source upper-layer electrode and a drain upper-layer electrode both made of an oxide are provided at least on upper surfaces of the source electrode and the drain electrode, respectively. An interlayer insulation film made of an oxide has a portion provided on the source upper-layer electrode and the drain upper-layer electrode and is in contact the semiconductor channel film.Type: GrantFiled: March 8, 2019Date of Patent: December 1, 2020Assignee: Mitsubishi Electric CorporationInventors: Kazunori Inoue, Koji Oda, Takafumi Hashiguchi, Takeshi Kubota
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Patent number: 10782579Abstract: First and second gate lines respectively extend in first and second directions in a display area. The second gate line is electrically connected to the first gate line and extends in the second direction in the display area. The second gate line is electrically connected to the first gate line outside the display area. A conductive layer may be disposed between the second gate line and a source line, and the second gate line may be electrically connected to the first gate line in the display area. To the conductive layer, a potential identical to a common potential or a ground potential is applied. An arrangement where two or more second gate lines overlap the source line may be employed. Transition of a potential of a gate signal from an on potential to an off potential may be made in two or more stages.Type: GrantFiled: June 5, 2019Date of Patent: September 22, 2020Assignee: Mitsubishi Electric CorporationInventors: Takafumi Hashiguchi, Naoya Hirata, Tatsuya Baba, Manabu Tanahara, Naruhito Hoka
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Publication number: 20200174329Abstract: The display apparatus includes a plurality of gate lines, a plurality of vertical gate lines orthogonal to the gate lines, and a plurality of connection parts, each of which connects one of the gate lines and corresponding one of the vertical gate lines. The plurality of vertical gate lines extend from a first side in the display region. At least the gate line disposed closest to the first side is connected to the corresponding vertical gate line by a plurality of connection parts disposed at two or more locations.Type: ApplicationFiled: November 26, 2019Publication date: June 4, 2020Applicant: Mitsubishi Electric CorporationInventors: Tatsuya BABA, Takafumi HASHIGUCHI, Naruhito HOKA, Naoya HIRATA
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Patent number: 10622384Abstract: A liquid crystal display panel includes, on one of two substrates with liquid crystal held therebetween, first and second wires respectively arranged in a first and a second directions, third wires arranged in the first direction and connected to the second wires, pixels arranged corresponding to crossing positions between the first and the second wires, a first and a second driver ICs respectively connected to each first and each third wires. Each pixel includes a lower electrode, an upper electrode including slits, and domains alignment-divided in accordance with formation directions of the slits. One of the lower and the upper electrodes is a pixel electrode and the other is a common electrode. Each third wire is placed in a boundary between the domains. With this structure, provided is a liquid crystal display capable of narrowing a frame area and improving display quality.Type: GrantFiled: January 18, 2018Date of Patent: April 14, 2020Assignee: Mitsubishi Electric CorporationInventors: Tatsuya Baba, Takafumi Hashiguchi, Naoya Hirata
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Publication number: 20190384132Abstract: First and second gate lines respectively extend in first and second directions in a display area. The second gate line is electrically connected to the first gate line and extends in the second direction in the display area. The second gate line is electrically connected to the first gate line outside the display area. A conductive layer may be disposed between the second gate line and a source line, and the second gate line may be electrically connected to the first gate line in the display area. To the conductive layer, a potential identical to a common potential or a ground potential is applied. An arrangement where two or more second gate lines overlap the source line may be employed. Transition of a potential of a gate signal from an on potential to an off potential may be made in two or more stages.Type: ApplicationFiled: June 5, 2019Publication date: December 19, 2019Applicant: Mitsubishi Electric CorporationInventors: Takafumi HASHIGUCHI, Naoya HIRATA, Tatsuya BABA, Manabu TANAHARA, Naruhito HOKA
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Publication number: 20190293980Abstract: An opening insulation film covers a substrate and is in contact with a side surface of a gate electrode. The opening insulation film is provided with a first opening portion having a side surface on the gate electrode. A gate insulation film made of an oxide insulator is on the gate electrode and the opening insulation film. A semiconductor channel film made of an oxide semiconductor is on the gate insulation film and is encompassed by the first opening portion. Source and drain electrodes are on the semiconductor channel film. A source upper-layer electrode and a drain upper-layer electrode both made of an oxide are provided at least on upper surfaces of the source electrode and the drain electrode, respectively. An interlayer insulation film made of an oxide has a portion provided on the source upper-layer electrode and the drain upper-layer electrode and is in contact the semiconductor channel film.Type: ApplicationFiled: March 8, 2019Publication date: September 26, 2019Applicant: Mitsubishi Electric CorporationInventors: Kazunori INOUE, Koji ODA, Takafumi HASHIGUCHI, Takeshi KUBOTA
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Patent number: 10303298Abstract: A touch screen includes column-direction wirings extending in a column direction, row-direction wirings extending in a row direction orthogonal to the column direction, and detection cells provided in areas in which the column-direction wirings and the row-direction wirings are three-dimensionally intersect with each other. The touch screen further includes additional capacitors that are provided in a mounting region in which mounting terminals of a plurality of lead lines, each of which is connected to one of the column-direction wirings or one of the row-direction wirings, are mounted, and are configured to apply electrostatic capacitance to the plurality of lead lines, and at least one potential fixed terminal configured to fix a potential of one electrode of each of the additional capacitors.Type: GrantFiled: November 4, 2016Date of Patent: May 28, 2019Assignee: Mitsubishi Electric CorporationInventor: Takafumi Hashiguchi
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Patent number: 10185196Abstract: Gate connection lines connected to gate wires in a display region are formed so as to have a region overlapped with source wires. According to such a structure, both of frame-width reduction and display performance of a liquid crystal display panel may be realized.Type: GrantFiled: February 5, 2018Date of Patent: January 22, 2019Assignee: Mitsubishi Electric CorporationInventors: Takafumi Hashiguchi, Naoya Hirata, Tatsuya Baba, Manabu Tanahara
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Patent number: 10139688Abstract: In an FFS liquid crystal display in which a dummy pixel in a dummy pixel region is smaller than a display pixel in a display region, a slit is formed in a common electrode in the display pixel while no slit is formed in the common electrode in the dummy pixel.Type: GrantFiled: May 4, 2017Date of Patent: November 27, 2018Assignee: Mitsubishi Electric CorporationInventors: Takafumi Hashiguchi, Naruhito Hoka, Naoya Hirata
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Publication number: 20180246386Abstract: Gate connection lines connected to gate wires in a display region are formed so as to have a region overlapped with source wires. According to such a structure, both of frame-width reduction and display performance of a liquid crystal display panel may be realized.Type: ApplicationFiled: February 5, 2018Publication date: August 30, 2018Applicant: Mitsubishi Electric CorporationInventors: Takafumi HASHIGUCHI, Naoya HIRATA, Tatsuya BABA, Manabu TANAHARA
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Publication number: 20180217431Abstract: A liquid crystal display panel includes, on one of two substrates with liquid crystal held therebetween, first and second wires respectively arranged in a first and a second directions, third wires arranged in the first direction and connected to the second wires, pixels arranged corresponding to crossing positions between the first and the second wires, a first and a second driver ICs respectively connected to each first and each third wires. Each pixel includes a lower electrode, an upper electrode including slits, and domains alignment-divided in accordance with formation directions of the slits. One of the lower and the upper electrodes is a pixel electrode and the other is a common electrode. Each third wire is placed in a boundary between the domains. With this structure, provided is a liquid crystal display capable of narrowing a frame area and improving display quality.Type: ApplicationFiled: January 18, 2018Publication date: August 2, 2018Applicant: Mitsubishi Electric CorporationInventors: Tatsuya BABA, Takafumi HASHIGUCHI, Naoya HIRATA
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Patent number: 9869915Abstract: An array substrate according to the present invention is an array substrate including a display region that displays an image and a frame region. The array substrate includes: a plurality of scanning lines; a plurality of signal lines; a thin film transistor disposed at an intersection of each of the plurality of scanning lines and each of the plurality of signal lines; a plurality of in-frame wires formed in the frame region; and a plurality of connection converters that electrically connect the scanning lines or the signal lines to the in-frame wires and are provided in the frame region. A single contact hole that penetrates an insulating layer is formed in each of the connection converters, and each of the scanning lines or each of the signal lines is electrically connected with each of the in-frame wires through a conductive film in the single contact hole.Type: GrantFiled: October 7, 2015Date of Patent: January 16, 2018Assignee: Mitsubishi Electric CorporationInventor: Takafumi Hashiguchi
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Publication number: 20170351152Abstract: In an FFS liquid crystal display in which a dummy pixel in a dummy pixel region is smaller than a display pixel in a display region, a slit is formed in a common electrode in the display pixel while no slit is formed in the common electrode in the dummy pixel.Type: ApplicationFiled: May 4, 2017Publication date: December 7, 2017Applicant: Mitsubishi Electric CorporationInventors: Takafumi HASHIGUCHI, Naruhito HOKA, Naoya HIRATA
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Patent number: 9759969Abstract: A pixel electrode of an array substrate is connected with a drain electrode of a TFT via a first aperture formed on a second interlayer insulating film, a second aperture that includes a bottom portion of the first aperture and is formed on a common electrode, a third aperture that includes at least a part of the bottom portion of the first aperture, is included in a second aperture and is formed on a third interlayer insulating film, and a fourth aperture that is formed on the first interlayer insulating film in a region where the third aperture overlaps with the bottom portion of the first aperture.Type: GrantFiled: November 21, 2016Date of Patent: September 12, 2017Assignee: Mitsubishi Electric CorporationInventors: Masami Hayashi, Takafumi Hashiguchi
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Patent number: 9690151Abstract: A liquid crystal panel includes an array substrate and a counter substrate facing the array substrate that are bonded to each other through a seal located along a peripheral edge. Vcom wiring and GND wiring are provided in a peripheral region of the array substrate. The Vcom wiring is provided between a display region and the GND wiring. The GND wiring extends beyond an edge of the seal.Type: GrantFiled: February 11, 2015Date of Patent: June 27, 2017Assignee: Mitsubishi Electric CorporationInventors: Takafumi Hashiguchi, Takeshi Shimamura, Naruhito Hoka, Hirofumi Iwanaga
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Publication number: 20170131842Abstract: A touch screen includes column-direction wirings extending in a column direction, row-direction wirings extending in a row direction orthogonal to the column direction, and detection cells provided in areas in which the column-direction wirings and the row-direction wirings are three-dimensionally intersect with each other. The touch screen further includes additional capacitors that are provided in a mounting region in which mounting terminals of a plurality of lead lines, each of which is connected to one of the column-direction wirings or one of the row-direction wirings, are mounted, and are configured to apply electrostatic capacitance to the plurality of lead lines, and at least one potential fixed terminal configured to fix a potential of one electrode of each of the additional capacitors.Type: ApplicationFiled: November 4, 2016Publication date: May 11, 2017Applicant: Mitsubishi Electric CorporationInventor: Takafumi HASHIGUCHI