Patents by Inventor Yasuhiro Kanaya
Yasuhiro Kanaya 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: 11955492Abstract: According to one embodiment, a display device includes a display panel including a display area for displaying an image, and the display panel includes an insulating substrate, a first electrode, a first organic insulating layer, an inorganic insulating layer, a pixel electrode, a second organic insulating layer, and a pad portion. The inorganic insulating layer includes a first opening for electrically connecting the first electrode to the pixel electrode. The second organic insulating layer includes a second opening for electrically connecting the pixel electrode to the pad portion. The pixel electrode is formed of a transparent conductive material.Type: GrantFiled: September 17, 2021Date of Patent: April 9, 2024Assignee: Japan Display Inc.Inventors: Yoshinori Aoki, Yasuhiro Kanaya, Akihiro Ogawa
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Patent number: 11935881Abstract: According to an aspect, a display apparatus includes: a substrate; a plurality of pixels arrayed on the substrate; a plurality of inorganic light-emitting elements that are provided in the pixels, respectively; a transistor provided to a first surface of the substrate and coupled to one of the inorganic light-emitting elements; wiring provided to the first surface of the substrate and coupled to the transistor; and a circular polarization plate provided on a first side of the substrate.Type: GrantFiled: November 24, 2020Date of Patent: March 19, 2024Assignee: Japan Display Inc.Inventors: Masanobu Ikeda, Yasuhiro Kanaya, Tadafumi Ozaki
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Patent number: 11916097Abstract: A display apparatus with a detection device comprising: a substrate having a first principal surface and a second principal surface opposite to the first principal surface; a plurality of inorganic light-emitting elements provided on the first principal surface in a display region of the substrate; a first electrode facing the first principal surface of the substrate with the inorganic light-emitting elements interposed between the first electrode and the first principal surface; a first planarizing layer provided between the substrate and the first electrode and covering at least a side surface of the inorganic light-emitting elements; and a second electrode facing the second principal surface of the substrate and configured to output a signal corresponding to a change in distance between the second electrode and the first electrode.Type: GrantFiled: January 26, 2021Date of Patent: February 27, 2024Assignee: Japan Display Inc.Inventors: Masanobu Ikeda, Yasuhiro Kanaya
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Patent number: 11916051Abstract: A display device including a substrate, a plurality of pixels, a plurality of inorganic light-emitting elements, a flattening film, and an inorganic film. The pixels are arrayed on the substrate and display different colors. The inorganic light-emitting elements are provided to the respective pixels. The flattening film surrounds at least a side surface of the inorganic light-emitting element. The inorganic film covers the flattening film and the inorganic light-emitting element. The upper surface of the inorganic light-emitting element is exposed from the flattening film and is in contact with the inorganic film. Alternatively, the flattening film is provided covering the upper surface of the inorganic light-emitting element.Type: GrantFiled: November 25, 2020Date of Patent: February 27, 2024Assignee: Japan Display Inc.Inventors: Yasuhiro Kanaya, Masanobu Ikeda
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Patent number: 11852923Abstract: A reliability of seal portion of a liquid crystal display device can be improved by the following structure. A liquid crystal display device includes: a TFT substrate which includes a display region and a terminal part, and has an inorganic insulating film formed on an organic passivation film and an alignment film formed over the inorganic insulating film; a counter substrate, the TFT substrate and the counter substrate bonded together by a sealing material formed at a seal part surrounding the display region; and a liquid crystal sealed inside. At the seal part, a transparent conductive oxide film is formed between the inorganic insulating film and the alignment film. The transparent conductive oxide film exists inside an edge of the TFT substrate and hence, the edge of the TFT substrate is free of the transparent conductive oxide film.Type: GrantFiled: March 3, 2022Date of Patent: December 26, 2023Assignee: Japan Display Inc.Inventors: Takenori Hirota, Yasuhiro Kanaya, Hidehiro Sonoda, Toshiki Kaneko
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Patent number: 11824150Abstract: A display device comprising: a substrate having a first surface and a second surface opposite to the first surface; a plurality of pixels arrayed in a display region of the substrate; an inorganic light-emitting element provided to each of the pixels on the first surface of the substrate; cathode wiring provided in a peripheral region between the display region and an end of the substrate on the first surface of the substrate and electrically coupled to the inorganic light-emitting element; and a heat radiator provided on the second surface of the substrate, wherein the substrate has a through hole that connects the first surface with the second surface in the peripheral region of the substrate and overlaps the cathode wiring in planar view viewed from a direction perpendicular to the first surface of the substrate.Type: GrantFiled: January 14, 2021Date of Patent: November 21, 2023Assignee: Japan Display Inc.Inventors: Masanobu Ikeda, Yasuhiro Kanaya
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Patent number: 11810886Abstract: A display device includes a substrate; a plurality of pixels on the substrate; a light emitting element in each of the plurality of pixels; a first electrode electrically coupled with the light emitting element; a transistor on the substrate and electrically coupled with the first electrode; and a coupling layer between the first electrode and the light emitting element in a direction perpendicular to the substrate and containing a plurality of first conductive nanoparticles.Type: GrantFiled: August 30, 2021Date of Patent: November 7, 2023Assignee: JAPAN DISPLAY INC.Inventors: Masanobu Ikeda, Osamu Itou, Yasuhiro Kanaya
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Patent number: 11811002Abstract: According to an aspect, a display device includes: a substrate; a plurality of pixels provided on the substrate; and a first light emitting element and a second light emitting element that are included in each of the pixels. A light emitting layer of the first light emitting element includes gallium nitride to which europium is added, and a light emitting layer of the second light emitting element includes a multi-quantum well structure in which indium gallium nitride and gallium nitride are layered.Type: GrantFiled: April 26, 2021Date of Patent: November 7, 2023Assignee: Japan Display Inc.Inventors: Masanobu Ikeda, Osamu Ito, Yasuhiro Kanaya, Tadafumi Ozaki
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Patent number: 11774811Abstract: The purpose of the present invention is to prevent an overhang in a through hole in the display area when through holes in the organic passivation film in the display area and in the terminal area are simultaneously formed. The structure to realize this purpose is as follows: the terminal area having a lead wire, formed from a first metal, and extending to the display area, a first insulating film covering the lead wire, a second metal formed on the first insulating film, and a third metal formed on the surface of the second metal, wherein the first insulating film has a first through hole and a second through hole, the second metal has a first portion that connects with the lead wire via the first through hole, the second metal has a second portion that overlaps the second through hole, the second portion is separated from the first portion.Type: GrantFiled: October 20, 2020Date of Patent: October 3, 2023Assignee: Japan Display Inc.Inventors: Hidetatsu Nakamura, Yasuhiro Kanaya, Gen Koide, Hiroyuki Abe
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Patent number: 11721276Abstract: A display device includes a substrate, a plurality of pixels provided on the substrate, a light emitting element provided to each of the plurality of pixels, a first electrode provided to the substrate and electrically coupled to the light emitting element, a pixel circuit provided to the substrate and configured to drive the light emitting element, and a heat generation resistor provided to the pixel circuit.Type: GrantFiled: September 10, 2021Date of Patent: August 8, 2023Assignee: JAPAN DISPLAY INC.Inventors: Masanobu Ikeda, Yoshinori Aoki, Akihiro Ogawa, Yasuhiro Kanaya
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Publication number: 20230246059Abstract: A display apparatus is provided and includes substrate; pixels disposed on substrate; inorganic light emitting elements that are provided in pixels, respectively; electrode that is translucent and provided on one surface side of substrate and that is coupled to one of inorganic light emitting elements; transparent resin layer that is provided on one surface side of substrate and that covers electrode; light-shielding conductive layer that is provided on one surface side of substrate and that is in contact with transparent resin layer; and cover member that is translucent and provided on one surface side of substrate and that covers transparent resin layer, wherein substrate includes display region in which pixels are located, and peripheral region located outside display region, and light-shielding conductive layer is located in peripheral region.Type: ApplicationFiled: April 4, 2023Publication date: August 3, 2023Inventors: Masanobu IKEDA, Yasuhiro KANAYA
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Patent number: 11626450Abstract: According to an aspect, a display apparatus includes: a substrate; a plurality of pixels disposed on the substrate; a plurality of inorganic light emitting elements that are provided in the pixels, respectively; an electrode that is translucent and provided on one surface side of the substrate and that is coupled to one of the inorganic light emitting elements; a first conductive layer that is translucent and provided on the one surface side of the substrate and that covers the electrode; and a cover member that is translucent and provided on the one surface side of the substrate and that covers the first conductive layer. A sheet resistance value of the first conductive layer is higher than a sheet resistance value of the electrode.Type: GrantFiled: November 25, 2020Date of Patent: April 11, 2023Assignee: Japan Display Inc.Inventors: Masanobu Ikeda, Yasuhiro Kanaya
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Patent number: 11621291Abstract: A display device includes a substrate, a plurality of pixels, a plurality of inorganic light-emitting elements, and a first light-shielding portion. The pixels are arrayed on the substrate. The inorganic light-emitting elements are provided corresponding to the respective pixels and each have a first side surface and a second side surface opposite to the first side surface. The first light-shielding portion is electrically coupled to the cathode of the corresponding inorganic light-emitting element and prevents output of light traveling in a direction intersecting the first side surface of the inorganic light-emitting element.Type: GrantFiled: November 25, 2020Date of Patent: April 4, 2023Assignee: JAPAN DISPLAY INC.Inventors: Masanobu Ikeda, Yasuhiro Kanaya, Tadafumi Ozaki
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Patent number: 11581462Abstract: A display device includes a substrate, an interlayer insulating layer over the substrate, a metal layer over the interlayer insulating layer, and a light emitting element over the metal layer. The interlayer insulating layer includes a plurality of a first depressed portions. The metal layer includes a first region bonding to the light emitting element and a second region surrounding the first region. The second region, a plurality of second depressed portions is provided along the plurality of first depressed portions.Type: GrantFiled: August 28, 2020Date of Patent: February 14, 2023Assignee: Japan Display Inc.Inventor: Yasuhiro Kanaya
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Publication number: 20220415988Abstract: According to one embodiment, a display device comprises an insulating base, a plurality of light-emitting elements, a plurality of pixel circuits, and a plurality of lines. The insulating base includes a plurality of first island portions and a plurality of non-linear line portions connecting two of the first island portions. The light-emitting elements are arranged in each of the first island portions. The pixel circuits are arranged in each of the first island portions and driving the light-emitting elements. The lines are arranged in each of the line portions and connected to the pixel circuits of the two first island portions connected by the line portions.Type: ApplicationFiled: August 8, 2022Publication date: December 29, 2022Inventors: Masanobu IKEDA, Yasuhiro KANAYA, Takumi SANO, Yasushi KAWATA
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Patent number: 11456329Abstract: A display device, includes: a substrate; a plurality of pixels provided on the substrate; and a plurality of light emitting elements provided in each of the pixels. A first distance between a top surface of the substrate and one of the light emitting elements in a direction perpendicular to the top surface of the substrate, in a center portion of a display region of the substrate, is different from a second distance between the top surface of the substrate and another one of the light emitting elements in the direction perpendicular to the top surface of the substrate, in a periphery portion of the display region.Type: GrantFiled: September 28, 2020Date of Patent: September 27, 2022Assignee: Japan Display Inc.Inventors: Masanobu Ikeda, Yoshinori Aoki, Akihiro Ogawa, Yasuhiro Kanaya
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Publication number: 20220293579Abstract: A display device includes a substrate, a first light-emitting diode (LED) element and a second LED element provided to the substrate and configured to output light, a first signal line provided between the first LED element and the second LED element and electrically coupled to the first LED element, a second signal line provided between the first LED element and the second LED element and electrically coupled to the second LED element, gate wiring intersecting the first signal line and the second signal line, and anode wiring overlapping the gate wiring and electrically coupled to the first LED element and the second LED element. The anode wiring extends parallel to the gate wiring.Type: ApplicationFiled: June 2, 2022Publication date: September 15, 2022Inventors: Akihiro OGAWA, Masanobu IKEDA, Yasuhiro KANAYA, Yoshinori AOKI
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Publication number: 20220285332Abstract: According to one embodiment, a display device includes pixels each including transistors, pixel electrodes, a contact electrode, and light emitting elements, and an insulating basement, a first organic insulating layer, a second organic insulating layer, a resin layer, a common electrode, and first wiring lines. The common electrode is electrically connected to cathodes of the light emitting elements, and electrically connected to the contact electrodes of the pixels. The first wiring lines, each provided between the first organic insulating layer and the second organic insulating layer or between the second organic insulating layer and the resin layer, are electrically connected to the contact electrodes of the pixels, and are formed of a metal.Type: ApplicationFiled: May 23, 2022Publication date: September 8, 2022Inventors: Yoshinori AOKI, Yasuhiro KANAYA, Masanobu IKEDA, Akihiro OGAWA
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Patent number: 11437428Abstract: A display device comprises: a substrate; a plurality of pixels provided to the substrate; and a plurality of light emitting elements provided to the respective pixels. The light emitting elements include a plurality of first light emitting elements, a plurality of second light emitting elements, and a plurality of third light emitting elements, the first light emitting elements are arrayed on the substrate in a first direction and a second direction, the third light emitting element has a part not overlapping the first light emitting element or the second light emitting element when one of the pixels is viewed in the first direction, and the third light emitting element has a part not overlapping the first light emitting element or the second light emitting element when one of the pixels is viewed in the second direction.Type: GrantFiled: August 11, 2020Date of Patent: September 6, 2022Assignee: Japan Display Inc.Inventors: Masanobu Ikeda, Yoshinori Aoki, Akihiro Ogawa, Yasuhiro Kanaya
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Patent number: 11409392Abstract: Included are a first cover base including an alkali glass layer, a first alkali-free glass layer provided on one face of the alkali glass layer, and a second alkali-free glass layer provided on another face of the alkali glass layer and a sensor that is provided on the first alkali-free glass layer of the first cover base and includes a plurality of first electrodes configured to detect the unevenness of a surface of an object to be detected that comes into contact with or close to the first cover base and a switching element. At least the first electrodes are formed above the first alkali-free glass layer and in a transmissive area that passes an image.Type: GrantFiled: May 11, 2021Date of Patent: August 9, 2022Assignee: Japan Display Inc.Inventors: Hayato Kurasawa, Shoji Hinata, Toshinori Uehara, Hiroshi Mizuhashi, Yuji Suzuki, Yasuhiro Kanaya