Patents by Inventor Rai Sato
Rai Sato 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: 20250113706Abstract: A display device capable of performing display at high luminance is provided. After a first layer including a first light-emitting material emitting blue light is formed into an island shape over a first pixel electrode, a second layer including a second light-emitting material emitting light with a longer wavelength than blue light is formed into an island shape over a second pixel electrode. Then, an insulating layer overlapping with a region interposed between the first pixel electrode and the second pixel electrode is formed, and a common electrode is formed to cover the first layer, the second layer, and the insulating layer. The insulating layer is formed by performing patterning treatment and etching treatment at least twice.Type: ApplicationFiled: January 11, 2023Publication date: April 3, 2025Inventors: Kenichi OKAZAKI, Rai SATO, Yasutaka NAKAZAWA
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Patent number: 12256597Abstract: A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a base material and a pair of pixels, and the base material covers the pair of pixels and has a light-transmitting property. The pair of pixels includes one pixel and another pixel, and the one pixel includes a light-emitting device and a first microlens. The light-emitting device emits light toward the base material, and the first microlens is interposed between the base material and the light emission and converges light. The first microlens includes a first surface and a second surface; the second surface is closer to the light-emitting device than the first surface is; and the second surface has a smaller radius of curvature than the first surface. The other pixel includes a photoelectric conversion device and a second microlens. The second microlens is interposed between the base material and the photoelectric conversion and converges external light incident from the base material side.Type: GrantFiled: December 8, 2023Date of Patent: March 18, 2025Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Daiki Nakamura, Ryo Hatsumi, Rai Sato, Shingo Eguchi, Koji Kusunoki
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Publication number: 20250008780Abstract: A display apparatus with high resolution is provided. The display apparatus includes a transistor, a light-emitting device, a first insulating layer, a second insulating layer, and a first conductive layer. The transistor includes a semiconductor layer and a second conductive layer electrically connected to the semiconductor layer. The light-emitting device includes a pixel electrode. The first insulating layer is provided over the transistor and includes a first opening reaching the second conductive layer. The first conductive layer covers the first opening. The second insulating layer is provided over the first insulating layer and includes a second opening in a region overlapping with the first opening. The pixel electrode covers a top surface of the second insulating layer and the second opening. The pixel electrode is electrically connected to the second conductive layer through the first conductive layer. An end portion of the first insulating layer is positioned over the second conductive layer.Type: ApplicationFiled: November 17, 2022Publication date: January 2, 2025Inventors: Masataka NAKADA, Masahiro KATAYAMA, Rai SATO, Yasuharu HOSAKA, Toshimitsu OBONAI, Masayoshi DOBASHI, Koji KUSUNOKI, Tomonori NAKAYAMA
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Publication number: 20250004337Abstract: A display device with a high aperture ratio is provided. A step caused by a contact hole (50) for electrically connecting a wiring (33) and a pixel electrode (41) to each other is eliminated by being filled with an organic insulating layer (52), and a top surface of the pixel electrode is made flat to form an alignment film (45a) so that an alignment defect of a liquid crystal layer (40) is reduced. In addition, a light-transmitting material is used for the wiring (33) exposed to a bottom portion of the contact hole (50). Accordingly, an effective display region of a liquid crystal device can be increased. That is, the display device can have a high aperture ratio.Type: ApplicationFiled: November 16, 2022Publication date: January 2, 2025Inventors: Shunpei YAMAZAKI, Koji KUSUNOKI, Masahiro KATAYAMA, Rai SATO
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Publication number: 20240389442Abstract: A display apparatus having an image capturing function is provided. An image capturing device or a display apparatus capable of high-sensitivity image capturing can be provided. The display apparatus includes a first substrate, a second substrate facing the first substrate, a light-emitting element over the first substrate, a light-receiving element adjacent to the light-emitting element, a first light-blocking layer over the first substrate, a second light-blocking layer on the surface of the second substrate facing the first substrate, and a third light-blocking layer on the surface of the second light-blocking layer facing the first substrate. Each of the first to third light-blocking layers is provided between the light-emitting element and the light-receiving element in a plan view. The first light-blocking layer and the third light-blocking layer are provided so as to have a space between each other in a plan view.Type: ApplicationFiled: September 12, 2022Publication date: November 21, 2024Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kazuya SUGIMOTO, Ryo HATSUMI, Daisuke KUBOTA, Rai SATO, Masataka NAKADA, Yasutaka NAKAZAWA
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Publication number: 20240389441Abstract: A display apparatus having an image capturing function is provided. Noise in image capturing is reduced. The display apparatus includes a first pixel electrode, a second pixel electrode, a first organic layer, a second organic layer, a common electrode, a spacer, a protective layer, and a light-blocking layer. The first organic layer is provided over the first pixel electrode. The second organic layer is provided over the second pixel electrode. The common electrode includes a portion overlapping with the first pixel electrode with the first organic layer positioned therebetween and a portion overlapping with the second pixel electrode with the second organic layer positioned therebetween. The protective layer is provided to cover the common electrode. The spacer has a light-transmitting property with respect to visible light and includes a portion overlapping with the first pixel electrode with the protective layer, the common electrode, and the first organic layer positioned therebetween.Type: ApplicationFiled: September 22, 2022Publication date: November 21, 2024Inventors: Daisuke KUBOTA, Ryo HATSUMI, Rai SATO, Masataka NAKADA, Yasutaka NAKAZAWA
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Publication number: 20240381737Abstract: A display apparatus having an image capturing function is provided. An image capturing device or a display apparatus capable of high-sensitivity image capturing is provided. The display apparatus includes a first pixel electrode, a second pixel electrode, a first organic layer, a second organic layer, a common electrode, a first resin layer, a second resin layer, and a light-blocking layer. The first organic layer and the second organic layer are provided over the first pixel electrode and the second pixel electrode, respectively. The first resin layer and the second resin layer cover an end portion of the first organic layer and an end portion of the second organic layer, respectively. A side surface of the first organic layer and a side surface of the second organic layer face each other with the first resin layer and the second resin layer interposed therebetween.Type: ApplicationFiled: July 26, 2022Publication date: November 14, 2024Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hisao IKEDA, Yasutaka NAKAZAWA, Rai SATO, Shunpei YAMAZAKI
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Patent number: 12142658Abstract: A semiconductor device is fabricated by a method including the following steps: a first step of forming a semiconductor film containing a metal oxide over an insulating layer; a second step of forming a conductive film over the semiconductor film; a third step of forming a first resist mask over the conductive film and etching the conductive film to form a first conductive layer and to expose a top surface of the semiconductor film that is not covered with the first conductive layer; and a fourth step of forming a second resist mask that covers a top surface and a side surface of the first conductive layer and part of the top surface of the semiconductor film and etching the semiconductor film to form a semiconductor layer and to expose a top surface of the insulating layer that is not covered with the semiconductor layer.Type: GrantFiled: May 18, 2022Date of Patent: November 12, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasutaka Nakazawa, Kenichi Okazaki, Takayuki Ohide, Rai Sato
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Publication number: 20240365628Abstract: A display apparatus through which a user can see the background and which is capable of performing image capturing with high sensitivity is provided. The display apparatus includes a first light-emitting element, a second light-emitting element adjacent to the first light-emitting element, a light-receiving element adjacent to the second light-emitting element, a first organic layer provided between the second light-emitting element and the light-receiving element, and a second organic layer provided between the first light-emitting element and the second light-emitting element over a substrate with a visible-light-transmitting property. The first light-emitting element has a structure in which a first pixel electrode, a first light-emitting layer, and a common electrode are stacked in this order. The second light-emitting element has a structure in which a second pixel electrode, a second light-emitting layer, and the common electrode are stacked in this order.Type: ApplicationFiled: June 14, 2022Publication date: October 31, 2024Inventors: Shunpei YAMAZAKI, Hiroky ADACHI, Rai SATO, Daisuke KUBOTA, Kentaro HAYASHI
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Publication number: 20240334736Abstract: A display apparatus with high detection sensitivity of an image capturing function and high display quality is provided. The display apparatus includes a light-receiving device; a first light-emitting device including a first lower electrode whose end portion has a first tapered shape and a first organic compound layer having a shape along the first tapered shape; a second light-emitting device including a second lower electrode whose end portion has a second tapered shape and a second organic compound layer having a shape along the second tapered shape; a common electrode included in the first light-emitting device and the second light-emitting device; an insulating layer positioned between the first light-emitting device and the second light-emitting device and between the second light-emitting device and the light-receiving device; and an auxiliary wiring electrically connected to the common electrode.Type: ApplicationFiled: June 27, 2022Publication date: October 3, 2024Inventors: Yukinori SHIMA, Koji ONO, Masataka NAKADA, Rai SATO, Hiroki ADACHI
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Publication number: 20240315108Abstract: A display device having a function of sensing light is provided. The display device includes a first substrate, a second substrate, a light-receiving element, a light-emitting element, a resin layer, and a light shielding layer. The light-receiving element, the light-emitting element, the resin layer, and the light shielding layer are each positioned between the first substrate and the second substrate. The light-receiving element includes a first pixel electrode over the first substrate, an active layer over the first pixel electrode, and a common electrode over the active layer. The light-emitting element includes a second pixel electrode over the first substrate, a first light-emitting layer over the second pixel electrode, and the common electrode over the first light-emitting layer. The resin layer and the light shielding layer are each positioned between the common electrode and the second substrate. The resin layer includes a portion overlapping with the light-emitting element.Type: ApplicationFiled: May 23, 2024Publication date: September 19, 2024Inventors: Ryo HATSUMI, Taisuke KAMADA, Daisuke KUBOTA, Rai SATO, Hiroki ADACHI, Ryo YAMAUCHI, Kazunori WATANABE
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Publication number: 20240292670Abstract: A high-resolution or high-definition display apparatus is provided.Type: ApplicationFiled: June 27, 2022Publication date: August 29, 2024Inventors: Daiki NAKAMURA, Kenichi OKAZAKI, Rai SATO
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Patent number: 12048227Abstract: A display device having a function of sensing light is provided. The display device includes a first substrate, a second substrate, a light-receiving element, a light-emitting element, a resin layer, and a light shielding layer. The light-receiving element, the light-emitting element, the resin layer, and the light shielding layer are each positioned between the first substrate and the second substrate. The light-receiving element includes a first pixel electrode over the first substrate, an active layer over the first pixel electrode, and a common electrode over the active layer. The light-emitting element includes a second pixel electrode over the first substrate, a first light-emitting layer over the second pixel electrode, and the common electrode over the first light-emitting layer. The resin layer and the light shielding layer are each positioned between the common electrode and the second substrate. The resin layer includes a portion overlapping with the light-emitting element.Type: GrantFiled: February 3, 2020Date of Patent: July 23, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Ryo Hatsumi, Taisuke Kamada, Daisuke Kubota, Rai Sato, Hiroki Adachi, Ryo Yamauchi, Kazunori Watanabe
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Publication number: 20240237464Abstract: A high-definition or high-resolution display apparatus is provided. The display apparatus includes a first light-emitting device, a second light-emitting device, a first insulating layer, and a second insulating layer. The first light-emitting device includes a first pixel electrode, a first light-emitting layer over the first pixel electrode, and a common electrode over the first light-emitting layer. The second light-emitting device includes a second pixel electrode, a second light-emitting layer over the second pixel electrode, and the common electrode over the second light-emitting layer. Each of an end portion of the first pixel electrode and an end portion of the second pixel electrode is covered with the first insulating layer. The second insulating layer is positioned over the first insulating layer. The second insulating layer covers each of a side surface of the first light-emitting layer and a side surface of the second light-emitting layer.Type: ApplicationFiled: February 9, 2022Publication date: July 11, 2024Inventors: Shunpei YAMAZAKI, Kenichi OKAZAKI, Daiki NAKAMURA, Rai SATO
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Publication number: 20240224698Abstract: A high-resolution or high-definition display apparatus is provided.Type: ApplicationFiled: April 15, 2022Publication date: July 4, 2024Inventors: Daiki NAKAMURA, Kenichi OKAZAKI, Rai SATO
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Publication number: 20240213335Abstract: A miniaturized semiconductor device is provided. The semiconductor device includes a semiconductor layer over a substrate, a first conductive layer and a second conductive layer being apart from each other over the semiconductor layer, a mask layer in contact with a top surface of the first conductive layer, a first insulating layer covering the semiconductor layer, the first conductive layer, the second conductive layer, and the mask layer, and a third conductive layer overlapping with the semiconductor layer and being over the first insulating layer. The first insulating layer is in contact with a top surface and a side surface of the mask layer, a side surface of the first conductive layer, a top surface and a side surface of the second conductive layer, and a top surface of the semiconductor layer. The semiconductor device includes a region in which the distance between opposite end portions of the first conductive layer and the second conductive layer is less than or equal to 1 ?m.Type: ApplicationFiled: April 28, 2022Publication date: June 27, 2024Inventors: Yasuharu HOSAKA, Yasutaka NAKAZAWA, Takashi SHIRAISHI, Rai SATO, Kenichi OKAZAKI
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Publication number: 20240196712Abstract: A display apparatus with high display quality is provided. A highly reliable display apparatus is provided. A display apparatus with low power consumption is provided. A display apparatus with a high resolution is provided. A display apparatus with high contrast is provided. The display apparatus includes a plurality of pixels over a first insulating layer. Each of the plurality of pixels includes a first conductive layer provided along an opening portion of the first insulating layer, a second insulating layer over the first conductive layer, an EL layer over the first conductive layer and the second insulating layer, and a common electrode over the EL layer. The second insulating layer is over and in contact with the first conductive layer and placed below the EL layer. The first conductive layers of adjacent pixels are separated by a third insulating layer containing an inorganic material and a fourth insulating layer containing an organic material.Type: ApplicationFiled: February 10, 2022Publication date: June 13, 2024Inventors: Shunpei YAMAZAKI, Kenichi OKAZAKI, Daiki NAKAMURA, Rai SATO
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Publication number: 20240172516Abstract: A display apparatus with high resolution or high definition is provided.Type: ApplicationFiled: March 22, 2022Publication date: May 23, 2024Inventors: Kenichi OKAZAKI, Daiki NAKAMURA, Rai SATO
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DISPLAY APPARATUS, DISPLAY MODULE, ELECTRONIC DEVICE, AND METHOD FOR MANUFACTURING DISPLAY APPARATUS
Publication number: 20240172488Abstract: A high-resolution or high-definition display apparatus is provided. The display apparatus includes a first light-emitting device, a second light-emitting device, a first insulating layer, and a first layer.Type: ApplicationFiled: February 28, 2022Publication date: May 23, 2024Inventors: Kenichi OKAZAKI, Yasutaka NAKAZAWA, Rai SATO -
DISPLAY APPARATUS, DISPLAY MODULE, ELECTRONIC DEVICE, AND METHOD FOR MANUFACTURING DISPLAY APPARATUS
Publication number: 20240164169Abstract: A higher-definition or higher-resolution display apparatus is provided. The display apparatus includes a first light-emitting device, a second light-emitting device, a first insulating layer, a first coloring layer, and a second coloring layer. The first light-emitting device includes a first pixel electrode, a first light-emitting layer over the first pixel electrode, and a common electrode over the first light-emitting layer. The second light-emitting device includes a second pixel electrode, a second light-emitting layer over the second pixel electrode, and the common electrode over the second light-emitting layer. The first insulating layer covers side surfaces of the first pixel electrode, the second pixel electrode, the first light-emitting layer, and the second light-emitting layer. The first coloring layer is placed to overlap with the first light-emitting device. The second coloring layer is placed to overlap with the second light-emitting device.Type: ApplicationFiled: March 15, 2022Publication date: May 16, 2024Inventors: Kenichi OKAZAKI, Daiki NAKAMURA, Rai SATO