Patents by Inventor Manabu IWAKAWA
Manabu IWAKAWA 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: 20240145446Abstract: A self-light emitting device in a tiling scheme includes an array of a plurality of self-light emitting units. Each of the self-light emitting units is partitioned into a plurality of unit regions, and each of the unit regions includes at least one light emitting cell each including one or more self-light emitting elements. A central portion and an outer edge portion of each self-light emitting unit differ in number or positions of one or more light emitting cells in each unit region.Type: ApplicationFiled: March 10, 2021Publication date: May 2, 2024Applicant: Mitsubishi Electric CorporationInventors: Manabu IWAKAWA, Kazunori INOUE
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Patent number: 11835824Abstract: The purpose of the present invention is to provide a configuration that allows the corners of a sealing material to be appropriately cut. The liquid crystal display device is provided with a liquid crystal panel that includes: an annular sealing material that has a corner in plan view and is for sealing a liquid crystal layer between a first transparent substrate and a second transparent substrate; and a first panel cutting aid material that is embedded in the corner of the sealing material. The first panel cutting aid material has a height that matches the gap between the first transparent substrate and the second transparent substrate. The first panel cutting aid material has a surface that is exposed from the outer periphery of the sealing material.Type: GrantFiled: July 4, 2019Date of Patent: December 5, 2023Assignee: Trivale TechnologiesInventors: Manabu Iwakawa, Takanori Okumura, Hiroshi Umeda, Eri Kurihara, Yuki Soma
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Patent number: 11719974Abstract: A time required to manufacture a self-luminous body for a display apparatus is shortened. A self-luminous body for a display apparatus includes a backplane and a plurality of stacks. The plurality of stacks are arranged on a backplane. Each stack includes a plurality of integrated self-luminous elements. The plurality of self-luminous elements in each stack include at least two self-luminous elements that are arranged at a first pitch and emit light of the same color. The plurality of stacks include a first stack and a second stack adjacent to each other. The self-luminous element of the first stack and the self-luminous element of the second stack that emits light of the same color as a color of light emitted by the self-luminous element of the first stack are arranged at a second pitch larger than the first pitch.Type: GrantFiled: February 3, 2020Date of Patent: August 8, 2023Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takanori Okumura, Kazumasa Katayama, Hidetada Tokioka, Masami Hayashi, Manabu Iwakawa, Shinsaku Yamaguchi
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Publication number: 20230246005Abstract: The present disclosure has an object to hinder reduction of a yield due to a failure in an LED element or a mounting failure in a self light emitting apparatus. In a self light emitting apparatus, each pixel includes one basic cell and at least one redundant cell as a subpixel. The redundant cell includes an LED element that emits light of a color the same as at least one LED element out of LED elements included in the basic cell. A plurality of subpixels included in each pixel are configured as a subpixel group being an assembly that includes a plurality of LED elements being integrated. An array pitch of the subpixels in the subpixel group is smaller than an array pitch of the subpixels in adjacent ones of a plurality of subpixel groups.Type: ApplicationFiled: June 23, 2020Publication date: August 3, 2023Applicant: Mitsubishi Electric CorporationInventors: Manabu IWAKAWA, Kazumasa KATAYAMA, Hidetada TOKIOKA, Takanori OKUMURA, Masami HAYASHI, Shinsaku YAMAGUCHI
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Publication number: 20230033925Abstract: A time required to manufacture a self-luminous body for a display apparatus is shortened. A self-luminous body for a display apparatus includes a backplane and a plurality of stacks. The plurality of stacks are arranged on a backplane. Each stack includes a plurality of integrated self-luminous elements. The plurality of selfluminous elements in each stack include at least two self-luminous elements that are arranged at a first pitch and emit light of the same color. The plurality of stacks include a first stack and a second stack adjacent to each other. The self-luminous element of the first stack and the self-luminous element of the second stack that emits light of the same color as a color of light emitted by the self-luminous element of the first stack are arranged at a second pitch larger than the first pitch.Type: ApplicationFiled: February 3, 2020Publication date: February 2, 2023Applicant: Mitsubishi Electric CorporationInventors: Takanori OKUMURA, Kazumasa KATAYAMA, Hidetada TOKIOKA, Masami HAYASHI, Manabu IWAKAWA, Shinsaku YAMAGUCHI
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Publication number: 20220317487Abstract: The purpose of the present invention is to provide a configuration that allows the corners of a sealing material to be appropriately cut. The liquid crystal display device is provided with a liquid crystal panel that includes: an annular sealing material that has a corner in plan view and is for sealing a liquid crystal layer between a first transparent substrate and a second transparent substrate; and a first panel cutting aid material that is embedded in the corner of the sealing material. The first panel cutting aid material has a height that matches the gap between the first transparent substrate and the second transparent substrate. The first panel cutting aid material has a surface that is exposed from the outer periphery of the sealing material.Type: ApplicationFiled: July 4, 2019Publication date: October 6, 2022Applicant: Mitsubishi Electric CorporationInventors: Manabu IWAKAWA, Takanori OKUMURA, Hiroshi UMEDA, Eri KURIHARA, Yuki SOMA
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Publication number: 20200241343Abstract: An absorption axis of the second polarizing plate provided on a counter substrate is parallel to an alignment axis of the liquid crystal molecules of a liquid crystal layer, the biaxial retardation film is arranged such that a slow axis of the biaxial retardation film forms a first angle formed counterclockwise with the absorption axis or formed clockwise with the alignment axis in a plane of the liquid crystal panel, and a transmission axis of a first polarizing plate provided on an array substrate is arranged such that the transmission axis of the first polarizing plate forms a second angle larger than the first angle from the absorption axis or the alignment axis in the same direction as the first angle in the plane of the liquid crystal panel.Type: ApplicationFiled: August 8, 2018Publication date: July 30, 2020Applicant: Mitsubishi Electric CorporationInventors: Manabu IWAKAWA, Naoko IWASAKI, Toshiaki FUJINO, Akira TAMATANI, Kazushi KIYOTA, Hironori MATSUEDA
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Patent number: 10473970Abstract: In a liquid crystal display, a liquid crystal cell and a polarizing plate respectively have a planar, non-rectangular shape. The polarizing plate has an axis that is either an absorption axis or a slow axis. The planar shape of the polarizing plate includes first and second sides respectively extending in a direction perpendicular to the axis and a direction tilted from the axis. The polarizing plate includes first and second peripheral portions respectively lying along the first and second sides, and includes a corner portion lying at a portion where the first and second peripheral portions overlap each other. The polarizing plate is applied by a bonding agent onto a main surface of the liquid crystal cell so that the corner portion is not coupled to the main surface. A contour portion extending in a direction tilted from the axis may not be coupled to the main surface.Type: GrantFiled: March 9, 2017Date of Patent: November 12, 2019Assignee: Mitsubishi Electric CorporationInventors: Hiroshi Umeda, Manabu Iwakawa
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Patent number: 10216031Abstract: A technique disclosed in the specification relates to preventing a reduction in aperture ratio and visible lines between bright and dark portions. A liquid crystal display in a technique disclosed in the specification includes a plurality of pixel arranged in a liquid crystal display panel in a plan view, a light blocking layer disposed between the plurality of pixels in a plan view, and a colorant layer provided to overlap each of the plurality of pixels. The light blocking layer includes a first region and a second region narrower than the first region in a plan view. The colorant layer has a transmittance lower in a region adjacent to the second region than a transmittance in a region adjacent to the first region.Type: GrantFiled: May 4, 2017Date of Patent: February 26, 2019Assignee: Mitsubishi Electric CorporationInventors: Shuichi Kira, Manabu Iwakawa
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Patent number: 9869909Abstract: Provided is a liquid crystal display apparatus capable of preventing a disclination and minimizing a decrease in contrast ratio caused by leakage of light. A counter electrode formed on an array substrate has a plurality of slits within one pixel. The slit which is relatively short has bent edge portions in which edges of the slit are bent. The slits which are relatively long do not have bent edges.Type: GrantFiled: May 31, 2016Date of Patent: January 16, 2018Assignee: Mitsubishi Electric CorporationInventors: Hiroshi Umeda, Manabu Iwakawa
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Publication number: 20170351140Abstract: A technique disclosed in the specification relates to preventing a reduction in aperture ratio and visible lines between bright and dark portions. A liquid crystal display in a technique disclosed in the specification includes a plurality of pixel arranged in a liquid crystal display panel in a plan view, a light blocking layer disposed between the plurality of pixels in a plan view, and a colorant layer provided to overlap each of the plurality of pixels. The light blocking layer includes a first region and a second region narrower than the first region in a plan view. The colorant layer has a transmittance lower in a region adjacent to the second region than a transmittance in a region adjacent to the first region.Type: ApplicationFiled: May 4, 2017Publication date: December 7, 2017Applicant: Mitsubishi Electric CorporationInventors: Shuichi KIRA, Manabu IWAKAWA
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Patent number: 9804438Abstract: Liquid crystal molecules have a pretilt angle to the left-and-right direction in a plane perpendicular to the up-and-down direction, so that an end part of a first side as one side of a left side and a right side of the liquid crystal molecules is set closer to a backlight than an end part of a second side as the other side. Second edge parts of a black matrix adjacent to an upper side and a lower side of an opening have a straight line shape extending by inclination to mutually the same side in the left-and-right direction, so that an end part of the same side as a first side as one side of the left side and the right side of the second edge parts is positioned above the end part of the same side as the second side as the other side.Type: GrantFiled: January 29, 2016Date of Patent: October 31, 2017Assignee: Mitsubishi Electric CorporationInventors: Koji Yonemura, Manabu Iwakawa, Akimasa Yuki, Toshiaki Fujino, Tetsuya Satake, Taroh Yoshino, Kazunori Okumoto
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Publication number: 20170285398Abstract: In a liquid crystal display, a liquid crystal cell and a polarizing plate respectively have a planar, non-rectangular shape. The polarizing plate has an axis that is either an absorption axis or a slow axis. The planar shape of the polarizing plate includes first and second sides respectively extending in a direction perpendicular to the axis and a direction tilted from the axis. The polarizing plate includes first and second peripheral portions respectively lying along the first and second sides, and includes a corner portion lying at a portion where the first and second peripheral portions overlap each other. The polarizing plate is applied by a bonding agent onto a main surface of the liquid crystal cell so that the corner portion is not coupled to the main surface. A contour portion extending in a direction tilted from the axis may not be coupled to the main surface.Type: ApplicationFiled: March 9, 2017Publication date: October 5, 2017Applicant: Mitsubishi Electric CorporationInventors: Hiroshi UMEDA, Manabu IWAKAWA
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Patent number: 9726946Abstract: A liquid crystal display device includes an electrode configuration layer provided on a support substrate, the electrode configuration layer includes a stripe region having a plurality of electrode regions and a plurality of insulator regions arranged in an alternating manner, and the electrode regions and the insulator regions are formed by partially performing a reduction treatment or an oxidation treatment on a layer made of one material, thereby controlling conductivity. Further, the electrode regions are included in at least one of the pixel electrode and the counter electrode of the liquid crystal display device.Type: GrantFiled: May 25, 2015Date of Patent: August 8, 2017Assignee: Mitsubishi Electric CorporationInventors: Yusuke Yamagata, Manabu Iwakawa, Toshihiro Yamashita, Koji Oda, Kazunori Inoue
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Publication number: 20170052402Abstract: A liquid crystal display device includes an electrode configuration layer provided on a support substrate, the electrode configuration layer includes a stripe region having a plurality of electrode regions and a plurality of insulator regions arranged in an alternating manner, and the electrode regions and the insulator regions are formed by partially performing a reduction treatment or an oxidation treatment on a layer made of one material, thereby controlling conductivity. Further, the electrode regions are included in at least one of the pixel electrode and the counter electrode of the liquid crystal display device.Type: ApplicationFiled: May 25, 2015Publication date: February 23, 2017Applicant: Mitsubishi Electric CorporationInventors: Yusuke YAMAGATA, Manabu IWAKAWA, Toshihiro YAMASHITA, Koji ODA, Kazunori INOUE
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Publication number: 20170003555Abstract: Provided is a liquid crystal display apparatus capable of preventing a disclination and minimizing a decrease in contrast ratio caused by leakage of light. A counter electrode formed on an array substrate has a plurality of slits within one pixel. The slit which is relatively short has bent edge portions in which edges of the slit are bent. The slits which are relatively long do not have bent edges.Type: ApplicationFiled: May 31, 2016Publication date: January 5, 2017Applicant: Mitsubishi Electric CorporationInventors: Hiroshi UMEDA, Manabu IWAKAWA
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Publication number: 20160223875Abstract: Liquid crystal molecules have a pretilt angle to the left-and-right direction in a plane perpendicular to the up-and-down direction, so that an end part of a first side as one side of a left side and a right side of the liquid crystal molecules is set closer to a backlight than an end part of a second side as the other side. Second edge parts of a black matrix adjacent to an upper side and a lower side of an opening have a straight line shape extending by inclination to mutually the same side in the left-and-right direction, so that an end part of the same side as a first side as one side of the left side and the right side of the second edge parts is positioned above the end part of the same side as the second side as the other side.Type: ApplicationFiled: January 29, 2016Publication date: August 4, 2016Applicant: Mitsubishi Electric CorporationInventors: Koji YONEMURA, Manabu IWAKAWA, Akimasa YUKI, Toshiaki FUJINO, Tetsuya SATAKE, Taroh YOSHINO, Kazunori OKUMOTO