Patents by Inventor Hiroshi Tabatake
Hiroshi Tabatake 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: 20240138217Abstract: According to one embodiment, a display device includes touch electrodes overlapping a display area, first wiring lines connected to the touch electrodes, second wiring lines connected to the first wiring lines, third wiring lines connected to the second wiring lines, third wiring lines connected to the third wiring lines, fourth wiring lines connected to the third wiring lines, and the fifth wiring lines connected to the fourth wiring lines, wherein the second wiring lines are partially exposed, the exposed regions of the second wiring lines constitute connecting portions with a circuit board, and half of the fourth wiring lines and all of the fifth wiring lines extend to an end portion of a base.Type: ApplicationFiled: October 22, 2023Publication date: April 25, 2024Applicant: Japan Display Inc.Inventors: Hiroshi TABATAKE, Hideyuki TAKAHASHI
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Patent number: 11966528Abstract: According to one embodiment, a display device includes a base, a display unit containing pixels, a power supply circuit, a touch controller and a switching circuit disposed between the display unit, the power supply circuit and the touch controller. The pixels each includes a pixel circuit and a display element including a lower electrode connected to the pixel circuit, an upper electrode disposed to oppose the lower electrode and an organic layer including a light-emitting layer disposed between the lower electrode and the upper electrode. The upper electrode is connected to the switching circuit, and the switching circuit selectively switches between connecting the upper electrode to the power supply circuit and connecting the upper electrode to the touch controller.Type: GrantFiled: March 16, 2023Date of Patent: April 23, 2024Assignee: Japan Display Inc.Inventors: Hiroshi Tabatake, Hideyuki Takahashi
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Patent number: 11963411Abstract: A display includes a plurality of first wirings which are provided on a first layer and each of which is arranged parallel to a first direction in a first area, and which are arranged on a second layer in a second area; a second wiring which is provided in the first layer in the first area and which is provided on a layer in the second area; and a third wiring which is provided on the first layer and arranged between the first wirings in the first area and which is arranged to intersect with first wirings in the second area. The first wirings is arranged to be inclined to the same side in the first direction in the second area. The second wiring is arranged to intersect with a portion of the plurality of first wirings in a plan view, in the second area.Type: GrantFiled: June 16, 2022Date of Patent: April 16, 2024Assignee: JAPAN DISPLAY INC.Inventors: Masumi Nishimura, Hiroshi Tabatake, Akihito Sato
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Publication number: 20240122012Abstract: A display device includes a display region on a substrate, a first step portion surrounding the display region in a plan view, a first sensor electrode in the display region, a first sensor wiring electrically connected with the first sensor electrode, a first terminal electrode located between the display region and an edge of the substrate, a first terminal wiring electrically connected to the first terminal electrode, at least one contact hole located between the first step portion and the first terminal electrode, at least one first insulating layer located around a periphery of the at least one contact hole, a second insulating layer between the at least one first insulating layer and the substrate in a cross section, and a third insulating layer over the first insulating layer and the second insulating layer.Type: ApplicationFiled: September 28, 2023Publication date: April 11, 2024Applicant: Japan Display Inc.Inventors: Kazuyuki HARADA, Hideyuki TAKAHASHI, Hiroshi TABATAKE, Masato NAKAMURA
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Publication number: 20240103662Abstract: Provided is a display device including a first dam surrounding the display area, a second dam surrounding the first dam, a first sensor electrode and a second sensor electrode overlapping the display area, a first sensor wiring and a second sensor wiring over the first dam and electrically connected to the first sensor electrode and the second sensor electrode, respectively, a first wiring under the second dam and electrically connected to the first sensor wiring at a first contact portion, and a second wiring under the second dam and electrically connected to the second sensor wiring at a second contact portion.Type: ApplicationFiled: December 11, 2023Publication date: March 28, 2024Applicant: Japan Display Inc.Inventors: Hideyuki TAKAHASHI, Hiroshi TABATAKE, Sho YANAGISAWA
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Publication number: 20240090272Abstract: According to one embodiment, a method of manufacturing a display device, includes forming a lower electrode on a base, forming a rib which covers a part of the lower electrode, forming a partition including a lower portion disposed on the rib and an upper portion protruding from a side surface of the lower portion, removing the upper portion of at least a part of the partition, measuring a first width of the lower portion of the partition and a second width of the upper portion of the partition and measuring a distance between the side surface of the lower portion and an end portion of the upper portion based on the first and second widths.Type: ApplicationFiled: April 27, 2023Publication date: March 14, 2024Applicant: Japan Display Inc.Inventor: Hiroshi TABATAKE
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Publication number: 20240087515Abstract: According to one embodiment, a display device includes a base, a plurality of pixels, a power supply line and a power supply line drive circuit. The pixels each include a pixel circuit, a display element including a lower electrode, an upper electrode and an organic layer including a light-emitting layer. The upper electrode is connected to the power supply line that provides a predetermined potential to the upper electrode. The power supply line drive circuit supplies, to the power supply line, a first potential to the upper electrode during a light-emitting period and supplies, to the power supply line, a second potential to the upper electrode during a non-light-emitting period.Type: ApplicationFiled: November 21, 2023Publication date: March 14, 2024Applicant: Japan Display Inc.Inventors: Hiroshi TABATAKE, Tetsuo MORITA
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Publication number: 20240081114Abstract: A display device includes a planarization layer on a substrate, a pixel with an organic electroluminescence element on the planarization layer, a sealing layer covering the pixel, a terminal electrode arranged at an edge of the substrate, and a first wiring arranged over the sealing layer and electrically connected to the terminal electrode. The planarization layer has an outer edge that forms a step over the substrate between the pixel and the terminal electrode. The first wiring extends from above the sealing layer to intersect with the step. In a plan view, the step has a first protrusion of the planarization layer protruding in a direction of the terminal electrode, a second protrusion adjacent to the first protrusion and protruding in a direction of the terminal electrode, and an intermediate region between the first protrusion and the second protrusion.Type: ApplicationFiled: September 6, 2023Publication date: March 7, 2024Applicant: Japan Display Inc.Inventors: Hideyuki TAKAHASHI, Kazuyuki HARADA, Hiroshi TABATAKE, Masato NAKAMURA
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Patent number: 11908409Abstract: According to one embodiment, a display apparatus includes a plurality of semiconductor layers, a first insulation film, a first conductive layer, a second insulation film and a display element includes a second conductive layer. The first conductive layer and the second conductive layer are opposed to each other to form a capacitance unit.Type: GrantFiled: December 29, 2022Date of Patent: February 20, 2024Assignee: Japan Display Inc.Inventors: Kazuyoshi Omata, Hiroyuki Kimura, Makoto Shibusawa, Hiroshi Tabatake
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Patent number: 11903264Abstract: According to one embodiment, a display device includes a substrate, a circuit layer including a metal-made feed line in a surrounding area, an insulating layer covering the circuit layer, a lower electrode, a rib, a partition above the rib, an upper electrode connected to the partition, an organic layer between the electrodes and a conductive layer connected to the partition. The partition and the conductive layer each includes a metal-made lower portion and an upper portion protruding from a side surface of the lower portion. The lower portion of the conductive layer and the feed line are in contact with each other in the first contact portion in the surrounding area.Type: GrantFiled: March 17, 2023Date of Patent: February 13, 2024Assignee: JAPAN DISPLAY INC.Inventor: Hiroshi Tabatake
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Patent number: 11874993Abstract: Provided is a display device including a first dam surrounding the display area, a second dam surrounding the first dam, a first sensor electrode and a second sensor electrode overlapping the display area, a first sensor wiring and a second sensor wiring over the first dam and electrically connected to the first sensor electrode and the second sensor electrode, respectively, a first wiring under the second dam and electrically connected to the first sensor wiring at a first contact portion, and a second wiring under the second dam and electrically connected to the second sensor wiring at a second contact portion.Type: GrantFiled: March 20, 2023Date of Patent: January 16, 2024Assignee: JAPAN DISPLAY INC.Inventors: Hideyuki Takahashi, Hiroshi Tabatake, Sho Yanagisawa
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Patent number: 11869421Abstract: According to one embodiment, a display device includes a base, a plurality of pixels, a power supply line and a power supply line drive circuit. The pixels each include a pixel circuit, a display element including a lower electrode, an upper electrode and an organic layer including a light-emitting layer. The upper electrode is connected to the power supply line that provides a predetermined potential to the upper electrode. The power supply line drive circuit supplies, to the power supply line, a first potential to the upper electrode during a light-emitting period and supplies, to the power supply line, a second potential to the upper electrode during a non-light-emitting period.Type: GrantFiled: March 24, 2022Date of Patent: January 9, 2024Assignee: Japan Display Inc.Inventors: Hiroshi Tabatake, Tetsuo Morita
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Publication number: 20230413613Abstract: According to one embodiment, a display device includes a substrate, an insulating layer, a lower electrode, a rib including an aperture and covering a periphery of the lower electrode, a partition above the rib, an upper electrode being in contact with the partition, and an organic layer between the electrodes. The organic layer includes a first organic layer that is in contact with the lower electrode through the aperture, and a second organic layer on the partition. At least a part of the periphery of the lower electrode is located between the insulating layer and the partition in a thickness direction of the insulating layer.Type: ApplicationFiled: August 25, 2023Publication date: December 21, 2023Applicant: Japan Display Inc.Inventor: Hiroshi TABATAKE
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Publication number: 20230403904Abstract: According to one embodiment, a display device includes a substrate, a pixel circuit, an insulating layer including a contact hole, a lower electrode connected to the pixel circuit via the contact hole, an upper electrode, an organic layer between the lower electrode and the upper electrode, a rib formed of an inorganic material and including an aperture, and a partition above the rib. The organic layer includes a first organic layer in contact with the lower electrode via the aperture and a second organic layer located on the partition and spaced apart from the first organic layer. The partition overlaps an entire of the contact hole in plan view.Type: ApplicationFiled: August 29, 2023Publication date: December 14, 2023Applicant: Japan Display Inc.Inventor: Hiroshi TABATAKE
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Publication number: 20230371342Abstract: According to one embodiment, a display device includes a base, a lower electrode disposed in a first region on the base, a rib covering a part of the lower electrode and including an aperture overlapping the first region, a partition including a lower portion disposed on the rib and an upper portion protruding from a side surface of the lower portion, which compartmentalizes the first region and a second region different from the first region, an organic layer disposed in the first region and in contact with the lower electrode via the aperture and an upper electrode disposed on the organic layer, and the organic layer and the upper electrode are not disposed in the second region.Type: ApplicationFiled: May 9, 2023Publication date: November 16, 2023Applicant: Japan Display Inc.Inventors: Hiroshi TABATAKE, Hiroyuki KIMURA
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Publication number: 20230309367Abstract: According to one embodiment, a method of manufacturing a display device, includes forming a partition including a lower portion disposed on a first surface of a base and an upper portion protruding from a side surface of the lower portion, and measuring the distance between a side surface of the lower portion and an end portion of the upper portion from a side of a second surface opposing the first surface of the base.Type: ApplicationFiled: March 24, 2023Publication date: September 28, 2023Applicant: Japan Display Inc.Inventor: Hiroshi TABATAKE
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Publication number: 20230305654Abstract: Provided is a display device including a first dam surrounding the display area, a second dam surrounding the first dam, a first sensor electrode and a second sensor electrode overlapping the display area, a first sensor wiring and a second sensor wiring over the first dam and electrically connected to the first sensor electrode and the second sensor electrode, respectively, a first wiring under the second dam and electrically connected to the first sensor wiring at a first contact portion, and a second wiring under the second dam and electrically connected to the second sensor wiring at a second contact portion.Type: ApplicationFiled: March 20, 2023Publication date: September 28, 2023Applicant: Japan Display Inc.Inventors: Hideyuki TAKAHASHI, Hiroshi TABATAKE, Sho YANAGISAWA
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Publication number: 20230301159Abstract: According to one embodiment, a display device includes a substrate, an insulating layer above the substrate, a lower electrode, a rib, a partition, an upper electrode, an organic layer between the electrodes, a dam structure including a protrusion in a surrounding area, and a conductive layer in the surrounding area covering at least a part of the dam structure and connected to the partition. The partition and the conductive layer include a conductive lower portion and an upper portion protruding from the lower portion. The end portion of the conductive layer is between the protrusion and the end portion of the substrate.Type: ApplicationFiled: March 16, 2023Publication date: September 21, 2023Applicant: Japan Display Inc.Inventor: Hiroshi TABATAKE
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Publication number: 20230301142Abstract: According to one embodiment, a display device includes a substrate, a circuit layer including a metal-made feed line in a surrounding area, an insulating layer covering the circuit layer, a lower electrode, a rib, a partition above the rib, an upper electrode connected to the partition, an organic layer between the electrodes and a conductive layer connected to the partition. The partition and the conductive layer each includes a metal-made lower portion and an upper portion protruding from a side surface of the lower portion. The lower portion of the conductive layer and the feed line are in contact with each other in the first contact portion in the surrounding area.Type: ApplicationFiled: March 17, 2023Publication date: September 21, 2023Applicant: Japan Display Inc.Inventor: Hiroshi TABATAKE
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Publication number: 20230292551Abstract: A display device includes a light-emitting element; a first transistor and a second transistor connected in series between the light-emitting element and a driving power line; a third transistor electrically connected to a gate electrode of the first transistor; and a fourth transistor connected in parallel between a drain electrode of the first transistor and the light-emitting element, wherein a ratio of a channel width W1 to a channel length L1 of the first transistor (a W1/L1 ratio) and a ratio of a channel width W2 to a channel length L2 of the second transistor (a W2/L2 ratio) are larger than a ratio of a channel width W3 to a channel length L3 of the third transistor (a W3/L3 ratio) and a ratio of a channel width W4 to a channel length L4 of the fourth transistor (a W4/L4 ratio).Type: ApplicationFiled: March 1, 2023Publication date: September 14, 2023Applicant: Japan Display Inc.Inventors: Masashi TSUBUKU, Takeshi SAKAI, Kentaro MIURA, Hajime WATAKABE, Takaya TAMARU, Hiroshi TABATAKE, Yutaka UMEDA