Patents by Inventor Yuji Maede
Yuji Maede 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: 20240142827Abstract: According to one embodiment, an optical control element comprises a first substrate, a second substrate, a liquid crystal layer arranged between the first substrate and the second substrate, the first substrate include a first electrode, a second electrode provided on the first electrode, and a high-resistance layer provided on the first electrode and the second electrode, wherein the second substrate comprises a third electrode, a plurality of circular apertures are provided in each of the second electrodes, and lines connecting centers of the plurality of apertures constitute a triangle.Type: ApplicationFiled: October 24, 2023Publication date: May 2, 2024Applicant: Japan Display Inc.Inventors: Jin HIROSAWA, Shunichi KIMURA, Toshiharu MATSUSHIMA, Yuji MAEDE, Shinichi KOMURA
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Publication number: 20240126115Abstract: According to one embodiment, an optical control element includes a plurality of lens forming regions along a first direction and a second direction orthogonal to the first direction, each of the lens forming regions includes an annularly shaped second electrode and a circularly shaped first electrode provided on an inner side of the second electrode, a plurality of first wiring lines connected to the first electrodes each include a first stem portion extending in a zigzag shape along the second direction and a plurality of first branch portions extending from the first stem, and each of the first branch portions overlap the plurality of first electrodes, respectively.Type: ApplicationFiled: October 5, 2023Publication date: April 18, 2024Applicant: Japan Display Inc.Inventors: Shunichi KIMURA, Toshiharu MATSUSHIMA, Jin HIROSAWA, Yuji MAEDE
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Patent number: 11960175Abstract: According to one embodiment, a liquid crystal display device includes first and second substrates and a liquid crystal layer. The first substrate includes scanning line extending in a first direction, signal line extending in a second direction, pixel electrodes including and a common electrode. The common electrode includes sub-electrodes extending in the first or second direction. Each of the sub-electrodes includes a first portion having a width greater than the scanning or signal line, and a second portion having a width less than the first portion but greater than the scanning or signal line. The first and second portions are alternately arranged along a direction in which the sub-electrodes extend.Type: GrantFiled: June 6, 2023Date of Patent: April 16, 2024Assignee: Japan Display Inc.Inventors: Kyosuke Watanabe, Yuji Maede
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Publication number: 20240118481Abstract: According to one embodiment, an illumination device comprises a light guide, a light source, a reflective layer, a first prism and a second prism, wherein the light guide has a thickness in a second direction increasing toward a second side surface, the first prism and the second prism have cross-sectional shapes being formed in a triangle shape, a first height of the first prism in the second direction is smaller than a second height of the second prism in the second direction.Type: ApplicationFiled: December 18, 2023Publication date: April 11, 2024Applicant: Japan Display Inc.Inventors: Yuji MAEDE, Shinichi KOMURA, Hiroaki KIJIMA
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Publication number: 20240079415Abstract: A display device includes an array substrate, and a counter substrate. The array substrate includes a plurality of signal lines arranged at an interval in a first direction, a plurality of scanning lines arranged at an interval in a second direction, a color filter, a plurality of pixel electrodes disposed for respective pixels, a common electrode superimposed on the plurality of pixel electrodes with an insulating film interposed between the common electrode and the plurality of pixel electrodes, and an insulating film covering the color filters. A contact hole is a recessed part opened through the insulating film and electrically couples the pixel electrode and the semiconductor, and a first flattening film is insulating and fills the recessed part of the contact hole.Type: ApplicationFiled: September 6, 2023Publication date: March 7, 2024Applicant: Japan Display Inc.Inventors: Junko NAGASAWA, Yuji MAEDE
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Publication number: 20240061242Abstract: According to one embodiment, a display device includes an illumination device which emits illumination light, a display panel which modulates the illumination light and emits image light, a holographic optical element which reflects the image light emitted from the display panel, and a concave mirror which reflects the image light reflected by the holographic optical element, wherein when the image light reflected by the concave mirror enters a projection member, a virtual image is projected, and the holographic optical element reflects light incident at a specific angle of incidence on a Bragg reflection surface and transmits the light incident at an angle of incidence different from the specific angle of incidence.Type: ApplicationFiled: August 17, 2023Publication date: February 22, 2024Applicant: Japan Display Inc.Inventors: Yuji MAEDE, Yasuhiro TAKAHASHI
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Patent number: 11892675Abstract: According to one embodiment, an illumination device comprises a light guide, a light source, a reflective layer, a first prism and a second prism, wherein the light guide has a thickness in a second direction increasing toward a second side surface, the first prism and the second prism have cross-sectional shapes being formed in a triangle shape, a first height of the first prism in the second direction is smaller than a second height of the second prism in the second direction.Type: GrantFiled: February 16, 2023Date of Patent: February 6, 2024Assignee: JAPAN DISPLAY INC.Inventors: Yuji Maede, Shinichi Komura, Hiroaki Kijima
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Patent number: 11886081Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell bonded to the first liquid crystal cell. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate, a second substrate, a liquid crystal layer, a sealant bonding the first substrate and the second substrate together, one or more first spacers disposed inside the sealant and holding the gap, and a plurality of second spacers disposed in an effective area surrounded by the sealant and holding the gap.Type: GrantFiled: March 13, 2023Date of Patent: January 30, 2024Assignee: JAPAN DISPLAY INC.Inventors: Junko Nagasawa, Hiroya Morimoto, Yuji Maede
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Publication number: 20230393429Abstract: According to one embodiment, a display device includes a first substrate including a plurality of switching elements, a plurality of signal lines connected to the plurality of switching elements, respectively, a plurality of color filters each provided between each adjacent pair of the plurality of signal lines, and a plurality of metal layers opposing the plurality of signal lines, respectively, a second substrate including a lens array including a plurality of lenses, and an insulating layer that covers the lens arrays, and a liquid crystal layer provided between the first substrate and the second substrate, wherein the plurality of lenses have a refractive index higher than that of the insulating layer.Type: ApplicationFiled: June 5, 2023Publication date: December 7, 2023Applicant: Japan Display Inc.Inventor: Yuji MAEDE
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Publication number: 20230325020Abstract: According to an aspect, a display device with a sensor includes: a first substrate; detection electrodes arrayed in a matrix in a first direction and a second direction intersecting the first direction above the first substrate; sensor wires coupled to one of the detection electrodes; pixels each including sub-pixels and arrayed in a matrix in the first and second directions; scanning lines scanning switching elements of the sub-pixels and extending in the first direction; and signal lines coupled to the switching elements and extending in the second direction. One of the sensor wires overlaps one of the signal lines. The sensor wires each have, at a part thereof, a coupling part coupled to the corresponding detection electrode. The pixels include a first pixel with the coupling part and a second pixel without the coupling part. The first and second pixels are alternately disposed in the first and second directions.Type: ApplicationFiled: June 15, 2023Publication date: October 12, 2023Applicant: Japan Display Inc.Inventors: Yoshinori AOKI, Yuji MAEDE, Jin HIROSAWA, Yuzo KANARI
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Publication number: 20230314879Abstract: According to one embodiment, a liquid crystal display device includes first and second substrates and a liquid crystal layer. The first substrate includes scanning line extending in a first direction, signal line extending in a second direction, pixel electrodes including and a common electrode. The common electrode includes sub-electrodes extending in the first or second direction. Each of the sub-electrodes includes a first portion having a width greater than the scanning or signal line, and a second portion having a width less than the first portion but greater than the scanning or signal line. The first and second portions are alternately arranged along a direction in which the sub-electrodes extend.Type: ApplicationFiled: June 6, 2023Publication date: October 5, 2023Applicant: Japan Display Inc.Inventors: Kyosuke WATANABE, Yuji MAEDE
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Publication number: 20230296824Abstract: According to one embodiment, an illumination device comprises a light guide, a light source, a reflective layer, a first prism and a second prism, wherein the light guide has a thickness in a second direction increasing toward a second side surface, the first prism and the second prism have cross-sectional shapes being formed in a triangle shape, a first height of the first prism in the second direction is smaller than a second height of the second prism in the second direction.Type: ApplicationFiled: February 16, 2023Publication date: September 21, 2023Applicant: Japan Display Inc.Inventors: Yuji MAEDE, Shinichi KOMURA, Hiroaki KIJIMA
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Patent number: 11720195Abstract: According to an aspect, a display device with a sensor includes: a first substrate; detection electrodes arrayed in a matrix in a first direction and a second direction intersecting the first direction above the first substrate; sensor wires coupled to one of the detection electrodes; pixels each including sub-pixels and arrayed in a matrix in the first and second directions; scanning lines scanning switching elements of the sub-pixels and extending in the first direction; and signal lines coupled to the switching elements and extending in the second direction. One of the sensor wires overlaps one of the signal lines. The sensor wires each have, at a part thereof, a coupling part coupled to the corresponding detection electrode. The pixels include a first pixel with the coupling part and a second pixel without the coupling part. The first and second pixels are alternately disposed in the first and second directions.Type: GrantFiled: February 18, 2022Date of Patent: August 8, 2023Assignee: Japan Display Inc.Inventors: Yoshinori Aoki, Yuji Maede, Jin Hirosawa, Yuzo Kanari
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Patent number: 11709398Abstract: According to one embodiment, a liquid crystal display device includes first and second substrates and a liquid crystal layer. The first substrate includes scanning line extending in a first direction, signal line extending in a second direction, pixel electrodes including and a common electrode. The common electrode includes sub-electrodes extending in the first or second direction. Each of the sub-electrodes includes a first portion having a width greater than the scanning or signal line, and a second portion having a width less than the first portion but greater than the scanning or signal line. The first and second portions are alternately arranged along a direction in which the sub-electrodes extend.Type: GrantFiled: February 15, 2022Date of Patent: July 25, 2023Assignee: Japan Display Inc.Inventors: Kyosuke Watanabe, Yuji Maede
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Publication number: 20230213821Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell bonded to the first liquid crystal cell. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate, a second substrate, a liquid crystal layer, a sealant bonding the first substrate and the second substrate together, one or more first spacers disposed inside the sealant and holding the gap, and a plurality of second spacers disposed in an effective area surrounded by the sealant and holding the gap.Type: ApplicationFiled: March 13, 2023Publication date: July 6, 2023Applicant: Japan Display Inc.Inventors: Junko NAGASAWA, Hiroya MORIMOTO, Yuji MAEDE
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Patent number: 11650463Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell bonded to the first liquid crystal cell. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate, a second substrate, a liquid crystal layer, a sealant bonding the first substrate and the second substrate together, one or more first spacers disposed inside the sealant and holding the gap, and a plurality of second spacers disposed in an effective area surrounded by the sealant and holding the gap.Type: GrantFiled: December 9, 2021Date of Patent: May 16, 2023Assignee: JAPAN DISPLAY INC.Inventors: Junko Nagasawa, Hiroya Morimoto, Yuji Maede
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Patent number: 11385507Abstract: According to one embodiment, an electro-optical device includes a panel, a sealant, a liquid crystal layer, a light source and a reflective layer. The panel includes first and second transparent substrates, an electro-optical area and a peripheral area. The seal is provided in the peripheral area and adheres the substrates. The liquid crystal layer contains a polymer liquid crystal composition. The light source opposes a side surface of the first or second substrates. The reflective layer is between the substrates. The panel includes a first edge, and the reflective layer overlaps a portion of the sealant, located along the first edge.Type: GrantFiled: December 4, 2020Date of Patent: July 12, 2022Assignee: JAPAN DISPLAY, INC.Inventors: Yasuhiro Takahashi, Yuji Maede
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Publication number: 20220187647Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell bonded to the first liquid crystal cell. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate, a second substrate, a liquid crystal layer, a sealant bonding the first substrate and the second substrate together, one or more first spacers disposed inside the sealant and holding the gap, and a plurality of second spacers disposed in an effective area surrounded by the sealant and holding the gap.Type: ApplicationFiled: December 9, 2021Publication date: June 16, 2022Applicant: Japan Display Inc.Inventors: Junko NAGASAWA, Hiroya MORIMOTO, Yuji MAEDE
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Patent number: 11362078Abstract: According to an aspect, a display device includes: a substrate; and a plurality of pixels provided on the substrate. Each of the pixels includes a red light emitting element and a first green light emitting element. When the first green light emitting element and the red light emitting element are turned on simultaneously, an emission intensity of the first green light emitting element is lower than an emission intensity of the red light emitting element, and a half width of a spectrum of light output from the first green light emitting element is greater than a half width of a spectrum of light output from the red light emitting element.Type: GrantFiled: April 29, 2021Date of Patent: June 14, 2022Assignee: Japan Display Inc.Inventors: Masanobu Ikeda, Yuji Maede, Yasuhiro Kanaya
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Publication number: 20220171242Abstract: According to one embodiment, a liquid crystal display device includes first and second substrates and a liquid crystal layer. The first substrate includes scanning line extending in a first direction, signal line extending in a second direction, pixel electrodes including and a common electrode. The common electrode includes sub-electrodes extending in the first or second direction. Each of the sub-electrodes includes a first portion having a width greater than the scanning or signal line, and a second portion having a width less than the first portion but greater than the scanning or signal line. The first and second portions are alternately arranged along a direction in which the sub-electrodes extend.Type: ApplicationFiled: February 15, 2022Publication date: June 2, 2022Applicant: Japan Display Inc.Inventors: Kyosuke WATANABE, Yuji MAEDE