Patents by Inventor Sentaro KIDA
Sentaro KIDA 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: 20250151516Abstract: A display device includes a first light-emitting layer formed continuously over a plurality of first pixels, and a second light-emitting layer formed continuously over a plurality of second pixels and not overlapping the first light-emitting layer in a plan view. The second light-emitting layer includes a solution drop material, and the first light-emitting layer is formed overlapping a part of an outer peripheral portion of each pixel in a plan view.Type: ApplicationFiled: April 20, 2022Publication date: May 8, 2025Inventors: YASUSHI ASAOKA, Sentaro KIDA, Takahiro ADACHI
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Patent number: 12279503Abstract: The provided method of manufacturing a display device includes a nanoparticle layer forming step and a bonding step. The nanoparticle layer forming step includes forming a nanoparticle layer including a stack of nanoparticles on either one or both of a topmost face of a first substrate including first electrodes, the first electrodes being provided on said topmost face, and a topmost face of a second substrate including a second electrode, the second electrode being provided on said topmost face. The bonding step includes bonding the first substrate and the second substrate together via the nanoparticle layer in such a manner that the first electrodes face the second electrode.Type: GrantFiled: August 5, 2019Date of Patent: April 15, 2025Assignee: SHARP KABUSHIKI KAISHAInventors: Yasushi Asaoka, Sentaro Kida
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Patent number: 12114537Abstract: Provided is a display element according to an aspect of the disclosure including a flattening film and, on the flattening film, a plurality of banks each having a linear shape, a plurality of active layers each having a linear shape and formed between adjacent banks, and an upper transparent electrode formed on each of the plurality of active layers. A cut line having a locally reduced height with reference to the flattening film is formed in each the plurality of banks, and the upper transparent electrode formed on one of the adjacent active layers and the upper transparent electrode formed on the other of the adjacent active layers are electrically connected via a conductive electrode formed in the cut line.Type: GrantFiled: March 28, 2019Date of Patent: October 8, 2024Assignee: SHARP KABUSHIKI KAISHAInventors: Sentaro Kida, Shigeru Aomori, Tsuyoshi Kamada, Yasushi Asaoka, Jun Sakuma
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Publication number: 20240260386Abstract: A display device includes a substrate, on the substrate, a light-emitting element including a first electrode, a second electrode, and a light-emitting layer and a charge transfer layer between the first electrode and the second electrode, in which the display device includes a light-emitting region of the light-emitting element and a non-light-emitting region that is a peripheral portion of the light-emitting region, a protruding portion is provided in a layer lower than the charge transfer layer in part of the non-light-emitting region, and the charge transfer layer is formed as a continuous film in a display region including the light-emitting region and the non-light-emitting region on the substrate, and includes a thin film portion, on the protruding portion, being thinner than a portion in the light-emitting region and a portion in the non-light-emitting region other than the protruding portion.Type: ApplicationFiled: June 30, 2021Publication date: August 1, 2024Inventors: Yasushi ASAOKA, Sentaro KIDA, Takahiro ADACHI
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Publication number: 20240258459Abstract: A display device includes a function layer including a body portion positioned in a light-emitting region and an edge portion positioned in a non-light-emitting region, and a bank formed in the non-light-emitting region and including an inner wall surface that is a surface on a side of the light-emitting region. The edge portion includes an overhanging portion including a portion having a thickness larger than a thickness of the body portion, and the overhanging portion is formed on the bank.Type: ApplicationFiled: June 30, 2021Publication date: August 1, 2024Inventors: Sentaro KIDA, Yasushi ASAOKA, Takahiro ADACHI
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Publication number: 20240234632Abstract: A light-emitting element according to the disclosure includes a bank including a base portion and a first protruding portion protruding from an upper face of the base portion, and a red light-emitting layer, in which at least a part of an end portion of the red light-emitting layer is located above the upper face of the base portion or adjacently to a side face of the first protruding portion.Type: ApplicationFiled: June 30, 2021Publication date: July 11, 2024Inventors: Takahiro ADACHI, Yasushi ASAOKA, Sentaro KIDA
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Publication number: 20240206215Abstract: A method for manufacturing a display device includes the following: a) forming a first resist layer over a substrate; b) patterning the first resist layer by removing the first resist layer formed over a first region of the substrate; c) forming a first light-emitting material layer over the first resist layer patterned, and above the first region of the substrate with the first resist layer removed; d) forming a second resist layer over the first light-emitting material layer; e) patterning the second resist layer by removing the first resist layer formed over a second region of the substrate, followed by lifting off the first light-emitting material layer and the second resist layer formed over the first resist layer over the second region; and f) forming a second light-emitting material layer over the second resist layer patterned, and above the second region of the substrate with the first second resist layer removed.Type: ApplicationFiled: May 27, 2021Publication date: June 20, 2024Inventors: Sentaro KIDA, JUN SAKUMA, YASUSHI ASAOKA
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Publication number: 20240114747Abstract: A display device includes: a substrate; a pixel electrode disposed on the substrate, the pixel electrode including a first portion and a second portion disposed outside the first portion, the first portion protruding to a second side opposite to a first side closer to the substrate than the second portion; a light-emitting layer disposed across the second side of the first portion and the second side of the second portion; a first edge cover disposed across the second side of a side edge portion of the first portion and the second side of the second portion, the first edge cover including an opening formed on the second side of a central portion of the first portion, the first edge cover covering an edge of the first portion; and a counter electrode including a portion disposed closer to the second side than the first edge cover.Type: ApplicationFiled: December 22, 2020Publication date: April 4, 2024Inventors: YASUSHI ASAOKA, Sentaro KIDA, Takahiro ADACHI
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Publication number: 20240081086Abstract: A light-emitting element according to the present disclosure includes at least one pair of light-emitting layers formed between a cathode and an anode and the at least one pair of light-emitting layers includes, in a stated order from the cathode, a P-type light-emitting layer and an N-type light-emitting layer adjacent to each other.Type: ApplicationFiled: December 22, 2020Publication date: March 7, 2024Inventors: Sentaro KIDA, YASUSHI ASAOKA
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Publication number: 20230371343Abstract: A display device includes a substrate, an insulating film formed over the substrate, a first pixel electrode formed over the insulating film, a first light-emitting layer formed over the first pixel electrode and overlapping the first pixel electrode in a plan view, a second light-emitting layer formed in a recess provided in the insulating film, and a second pixel electrode overlapping the recess in a plan view. At least one of the first light-emitting layer and the second light-emitting layer includes a quantum dot as a light-emitting material.Type: ApplicationFiled: October 5, 2021Publication date: November 16, 2023Inventors: Sentaro KIDA, YASUSHI ASAOKA, TSUYOSHI KAMADA
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Publication number: 20230369545Abstract: A light-emitting element producing method includes: a step of forming a first-charge transport layer on a first electrode; a step of applying a first photosensitive resin composition, containing first quantum dots, to the first-charge transport layer, and forming a first-quantum-dot containing layer; a step of applying a second photosensitive resin composition, containing second quantum dots, to the first-quantum-dot containing layer, and forming a second-quantum-dot containing layer; a step of forming a second-charge transport layer on the second-quantum-dot containing layer; and a step of forming a second electrode on the second-charge transport layer.Type: ApplicationFiled: October 7, 2020Publication date: November 16, 2023Inventors: Akira OHSHIMA, JUN SAKUMA, Sentaro KIDA, MAKOTO KITAGAWA
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Publication number: 20230354648Abstract: A display device includes: a plurality of first electrodes shaped into islands; a first light-emitting layer formed to overlap with a first electrode among the plurality of the first electrodes, the first light-emitting layer containing a first light-emitting material and resin; a second light-emitting layers formed to overlap with another first electrode among the plurality of the first electrodes, the second light-emitting layers being made of a second light-emitting material; and a bank formed in a shape of a picture frame, or formed to include two partition walls facing each other and separating an inner region from an outer region. The second light-emitting layer is provided behind the bank to be in contact with an inner side face of the bank, and the first light-emitting layer is formed out of the bank.Type: ApplicationFiled: September 17, 2020Publication date: November 2, 2023Inventors: Sentaro KIDA, YASUSHI ASAOKA, TSUYOSHI KAMADA
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Publication number: 20230057673Abstract: A display device includes: a substrate; a flattened layer; at least one first light-emitting element; at least one second light-emitting element; at least one first drive circuit; and at least one second drive circuit, wherein light emitted by the first light-emitting element is taken out through the substrate, light emitted by the second light-emitting element is taken out from a direction opposite to a direction in which the light emitted by the first light-emitting element is taken out, the first light-emitting element is provided in an opening provided in the flattened laver, the second light-emitting element is provided in a layer above the flattened layer and overlaps the flattened layer, and the first drive circuit and the second drive circuit are provided closer to the substrate than the second light-emitting element.Type: ApplicationFiled: January 6, 2020Publication date: February 23, 2023Inventors: YASUSHI ASAOKA, Sentaro KIDA, JUN SAKUMA
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Publication number: 20220352262Abstract: A method of manufacturing a display device includes: the first substrate preparation step of preparing a first substrate including insular, first electrodes, one for each of the plurality of subpixels; the second substrate preparation step of preparing a second substrate including a second electrode; the subpixel-specific layer forming step of forming insular subpixel-specific layers, one for each of the first electrodes, on either one or both of a top face of the first substrate and a top face of the second substrate; the nanoparticle layer forming step of forming a nanoparticle layer including a stack of nanoparticles on either one or both of the topmost face of the first substrate and the topmost face of the second electrode; and the bonding step of bonding the first substrate and the second substrate together via the nanoparticle layer in such a manner that the first electrodes face the second electrode.Type: ApplicationFiled: August 5, 2019Publication date: November 3, 2022Inventors: YASUSHI ASAOKA, Sentaro KIDA
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Publication number: 20220173181Abstract: Provided is a display element according to an aspect of the disclosure including a flattening film and, on the flattening film, a plurality of banks each having a linear shape, a plurality of active layers each having a linear shape and formed between adjacent banks, and an upper transparent electrode formed on each of the plurality of active layers. A cut line having a locally reduced height with reference to the flattening film is formed in each the plurality of banks, and the upper transparent electrode formed on one of the adjacent active layers and the upper transparent electrode formed on the other of the adjacent active layers are electrically connected via a conductive electrode formed in the cut line.Type: ApplicationFiled: March 28, 2019Publication date: June 2, 2022Inventors: Sentaro KIDA, SHIGERU AOMORI, TSUYOSHI KAMADA, YASUSHI ASAOKA, JUN SAKUMA
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Publication number: 20220052284Abstract: A display device according to one aspect of the disclosure includes an electroluminescence element including a light-emitting layer including quantum dots between a cathode and an anode which are paired, and further includes a platelet layer adjacent to the light-emitting layer and including plate-shaped nanoplatelets.Type: ApplicationFiled: December 17, 2018Publication date: February 17, 2022Inventors: Sentaro KIDA, YASUSHI ASAOKA, JUN SAKUMA