Patents by Inventor Yoshiharu Hirakata
Yoshiharu Hirakata 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: 20240121497Abstract: A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.Type: ApplicationFiled: December 1, 2023Publication date: April 11, 2024Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiharu HIRAKATA, Nobuharu OHSAWA, Hisao IKEDA, Kazuhiko FUJITA, Akihiro KAITA
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Publication number: 20240107854Abstract: The thickness of a display device including a touch sensor is reduced. Alternatively, the thickness of a display device having high display quality is reduced. Alternatively, a method for manufacturing a display device with high mass productivity is provided. Alternatively, a display device having high reliability is provided. Stacked substrates in each of which a sufficiently thin substrate and a relatively thick support substrate are stacked are used as substrates. One surface of the thin substrate of one of the stacked substrates is provided with a layer including a touch sensor, and one surface of the thin substrate of the other stacked substrate is provided with a layer including a display element. After the two stacked substrates are attached to each other so that the touch sensor and the display element face each other, the support substrate and the thin substrate of each stacked substrate are separated from each other.Type: ApplicationFiled: December 11, 2023Publication date: March 28, 2024Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei YAMAZAKI, Yoshiharu HIRAKATA, Kensuke YOSHIZUMI
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Publication number: 20240094775Abstract: A display device with low power consumption is provided. Furthermore, a display device in which an image is displayed in a region that can be used in a folded state is provided. The conceived display device includes a display portion that can be opened and folded, a sensing portion that senses a folded state of the display portion, and an image processing portion that generates, when the display portion is in the folded state, an image in which a black image is displayed in part of the display portion.Type: ApplicationFiled: November 29, 2023Publication date: March 21, 2024Inventors: Yoshiharu HIRAKATA, Hiroyuki MIYAKE, Seiko INOUE, Shunpei YAMAZAKI
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Publication number: 20240088172Abstract: A display device in which a peripheral circuit portion has high operation stability is provided. The display device includes a first substrate and a second substrate. A first insulating layer is provided over a first surface of the first substrate. A second insulating layer is provided over a first surface of the second substrate. The first surface of the first substrate and the first surface of the second substrate face each other. An adhesive layer is provided between the first insulating layer and the second insulating layer. A protective film in contact with the first substrate, the first insulating layer, the adhesive layer, the second insulating layer, and the second substrate is formed in the vicinity of a peripheral portion of the first substrate and the second substrate.Type: ApplicationFiled: November 17, 2023Publication date: March 14, 2024Inventors: Shunpei YAMAZAKI, Yoshiharu HIRAKATA, Takashi HAMADA, Kohei YOKOYAMA, Yasuhiro JINBO, Tetsuji ISHITANI, Daisuke KUBOTA
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Publication number: 20240085944Abstract: A display device includes a display panel mounted on a curved surface, and driver circuits including circuit elements which are mounted on a plurality of plane surfaces provided on the back of the curved surface in a stepwise shape along the curved surface.Type: ApplicationFiled: September 22, 2023Publication date: March 14, 2024Inventors: Shunpei YAMAZAKI, Yoshiharu HIRAKATA
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Patent number: 11899297Abstract: A novel foldable display device or an electronic device using the same, e.g., a portable information processor or a portable communication information device, is provided. A foldable display device of which a display panel can be folded n times (n?1, and n is a natural number) at a curvature radius of greater than or equal to 1 mm and less than or equal to 100 mm is obtained. The display device can be miniaturized by being foldable. In addition, in the state where the flexible display panel is opened, display which is unbroken and continuous over a plurality of housings is possible. The plurality of housings can store a circuit, an electronic component, a battery and the like inside as appropriate, and the thickness of each housing can be small.Type: GrantFiled: April 14, 2023Date of Patent: February 13, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Yoshiharu Hirakata
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Publication number: 20240049555Abstract: A flexible touch panel is provided. Both reduction in thickness and high sensitivity of a touch panel are achieved. The touch panel includes a first flexible substrate, a first insulating layer over the first substrate, a transistor and a light-emitting element over the first insulating layer, a color filter over the light-emitting element, a pair of sensor electrodes over the color filter, a second insulating layer over the sensor electrodes, a second flexible substrate over the second insulating layer, and a protective layer over the second substrate. A first bonding layer is between the light-emitting element and the color filter. The thickness of the first substrate and the second substrate is each 1 ?m to 200 ?m inclusive. The first bonding layer includes a region with a thickness of 50 nm to 10 ?m inclusive.Type: ApplicationFiled: October 4, 2023Publication date: February 8, 2024Inventors: Shunpei YAMAZAKI, Yoshiharu HIRAKATA, Hiroyuki MIYAKE
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Patent number: 11893299Abstract: An electronic device including a housing, a display panel with a flexible substrate, and a flexible printed circuit, in which the housing comprises a flat surface and a side surface comprising a curved region, the display panel comprises a first region that overlaps with the flat surface and a second region that overlaps with the side surface, the display panel comprises a convex portion that comprises a region overlapping with a flexible printed circuit, and the display panel comprises a display portion in the first region and the second region.Type: GrantFiled: March 9, 2022Date of Patent: February 6, 2024Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Yoshiharu Hirakata, Shunpei Yamazaki
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Publication number: 20240032232Abstract: A novel, highly convenient or reliable functional panel is provided. A novel, highly convenient or reliable method for manufacturing a functional panel is provided. The functional panel includes a first base; a second base having a region overlapping with the first base; a bonding layer that bonds the first base to the second base; and an insulating layer in contact with the first base, the second base, and the bonding layer. With this structure, an opening which is formed easily in a region where the bonding layer is in contact with the first base or the second base can be filled with the insulating layer, which can prevent impurities from being diffused into the functional layer located in a region surrounded by the first base, the second base, and the bonding layer that bonds the first base to the second base.Type: ApplicationFiled: October 4, 2023Publication date: January 25, 2024Inventors: Shunpei YAMAZAKI, Kohei YOKOYAMA, Yoshiharu HIRAKATA
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Publication number: 20240004229Abstract: A display device including a peripheral circuit portion with high operation stability. The display device includes a first substrate and a second substrate. A first insulating layer is on a first plane of the first substrate, and a second insulating layer is on a first plane of the second substrate. An area of the first plane of the first substrate is the same as an area of the first plane of the second substrate. The first plane of the first substrate and the first plane of the second substrate face each other. A bonding layer is between the first insulating layer and the second insulating layer. A protection film is in contact with the first substrate, the first insulating layer, the bonding layer, the second insulating layer, and the second substrate.Type: ApplicationFiled: April 21, 2023Publication date: January 4, 2024Applicant: Semiconductor Energy Laboratory Co, Ltd.Inventors: Shunpei Yamazaki, Yoshiharu HIRAKATA, Tetsuji ISHITANI, Daisuke KUBOTA, Ryo HATSUMI, Masaru NAKANO, Takashi HAMADA
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Patent number: 11844260Abstract: The thickness of a display device including a touch sensor is reduced. Alternatively, the thickness of a display device having high display quality is reduced. Alternatively, a method for manufacturing a display device with high mass productivity is provided. Alternatively, a display device having high reliability is provided. Stacked substrates in each of which a sufficiently thin substrate and a relatively thick support substrate are stacked are used as substrates. One surface of the thin substrate of one of the stacked substrates is provided with a layer including a touch sensor, and one surface of the thin substrate of the other stacked substrate is provided with a layer including a display element. After the two stacked substrates are attached to each other so that the touch sensor and the display element face each other, the support substrate and the thin substrate of each stacked substrate are separated from each other.Type: GrantFiled: December 29, 2020Date of Patent: December 12, 2023Inventors: Shunpei Yamazaki, Yoshiharu Hirakata, Kensuke Yoshizumi
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Patent number: 11836007Abstract: A display device with low power consumption is provided. Furthermore, a display device in which an image is displayed in a region that can be used in a folded state is provided. The conceived display device includes a display portion that can be opened and folded, a sensing portion that senses a folded state of the display portion, and an image processing portion that generates, when the display portion is in the folded state, an image in which a black image is displayed in part of the display portion.Type: GrantFiled: January 27, 2022Date of Patent: December 5, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiharu Hirakata, Hiroyuki Miyake, Seiko Inoue, Shunpei Yamazaki
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Patent number: 11824068Abstract: A display device in which a peripheral circuit portion has high operation stability is provided. The display device includes a first substrate and a second substrate. A first insulating layer is provided over a first surface of the first substrate. A second insulating layer is provided over a first surface of the second substrate. The first surface of the first substrate and the first surface of the second substrate face each other. An adhesive layer is provided between the first insulating layer and the second insulating layer. A protective film in contact with the first substrate, the first insulating layer, the adhesive layer, the second insulating layer, and the second substrate is formed in the vicinity of a peripheral portion of the first substrate and the second substrate.Type: GrantFiled: May 3, 2021Date of Patent: November 21, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yoshiharu Hirakata, Takashi Hamada, Kohei Yokoyama, Yasuhiro Jinbo, Tetsuji Ishitani, Daisuke Kubota
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Patent number: 11818856Abstract: A novel, highly convenient or reliable functional panel is provided. A novel, highly convenient or reliable method for manufacturing a functional panel is provided. The functional panel includes a first base; a second base having a region overlapping with the first base; a bonding layer that bonds the first base to the second base; and an insulating layer in contact with the first base, the second base, and the bonding layer. With this structure, an opening which is formed easily in a region where the bonding layer is in contact with the first base or the second base can be filled with the insulating layer, which can prevent impurities from being diffused into the functional layer located in a region surrounded by the first base, the second base, and the bonding layer that bonds the first base to the second base.Type: GrantFiled: July 19, 2021Date of Patent: November 14, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Kohei Yokoyama, Yoshiharu Hirakata
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Patent number: 11803209Abstract: A display device includes a display panel mounted on a curved surface, and driver circuits including circuit elements which are mounted on a plurality of plane surfaces provided on the back of the curved surface in a stepwise shape along the curved surface.Type: GrantFiled: August 30, 2021Date of Patent: October 31, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yoshiharu Hirakata
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Publication number: 20230324731Abstract: A novel foldable display device or an electronic device using the same, e.g., a portable information processor or a portable communication information device, is provided. A foldable display device of which a display panel can be folded n times (n?1, and n is a natural number) at a curvature radius of greater than or equal to 1 mm and less than or equal to 100 mm is obtained. The display device can be miniaturized by being foldable. In addition, in the state where the flexible display panel is opened, display which is unbroken and continuous over a plurality of housings is possible. The plurality of housings can store a circuit, an electronic component, a battery and the like inside as appropriate, and the thickness of each housing can be small.Type: ApplicationFiled: April 14, 2023Publication date: October 12, 2023Inventor: Yoshiharu HIRAKATA
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Patent number: 11785826Abstract: A flexible touch panel is provided. Both reduction in thickness and high sensitivity of a touch panel are achieved. The touch panel includes a first flexible substrate, a first insulating layer over the first substrate, a transistor and a light-emitting element over the first insulating layer, a color filter over the light-emitting element, a pair of sensor electrodes over the color filter, a second insulating layer over the sensor electrodes, a second flexible substrate over the second insulating layer, and a protective layer over the second substrate. A first bonding layer is between the light-emitting element and the color filter. The thickness of the first substrate and the second substrate is each 1 ?m to 200 ?m inclusive. The first bonding layer includes a region with a thickness of 50 nm to 10 ?m inclusive.Type: GrantFiled: November 9, 2021Date of Patent: October 10, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yoshiharu Hirakata, Hiroyuki Miyake
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Publication number: 20230320167Abstract: A light-emitting device or a display device that is less likely to be broken is provided. Provided is a light-emitting device including an element layer and a substrate over the element layer. At least a part of the substrate is bent to the element layer side. The substrate has a light-transmitting property and a refractive index that is higher than that of the air. The element layer includes a light-emitting element that emits light toward the substrate side. Alternatively, provided is a light-emitting device including an element layer and a substrate covering a top surface and at least one side surface of the element layer. The substrate has a light-transmitting property and a refractive index that is higher than that of the air. The element layer includes a light-emitting element that emits light toward the substrate side.Type: ApplicationFiled: June 9, 2023Publication date: October 5, 2023Inventors: Shunpei YAMAZAKI, Yoshiharu HIRAKATA, Tomoya AOYAMA, Akihiro CHIDA
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Publication number: 20230320000Abstract: A light-emitting device can be folded in such a manner that a flexible light-emitting panel is supported by a plurality of housings which are provided spaced from each other and the light-emitting panel is bent so that surfaces of adjacent housings are in contact with each other. Furthermore, in the light-emitting device, in which part or the whole of the housings have magnetism, the two adjacent housings can be fixed to each other by a magnetic force when the light-emitting device is used in a folded state.Type: ApplicationFiled: June 6, 2023Publication date: October 5, 2023Inventors: Yoshiharu HIRAKATA, Yasuhiro JINBO, Shunpei YAMAZAKI
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Patent number: 11754873Abstract: Provided is a novel display panel that is highly convenient or reliable, a novel data processor that is highly convenient or reliable, or a method for manufacturing a novel display panel that is highly convenient or reliable. The display panel includes a pixel and a terminal electrically connected to the pixel. The pixel includes a first insulating film, a first contact portion in a first opening provided in the first insulating film, a pixel circuit electrically connected to the first contact portion, a second contact portion electrically connected to the pixel circuit, a first display element electrically connected to the first contact portion, and a second display element electrically connected to the second contact portion. The first insulating film includes a region lying between the first display element and the second display element. The terminal includes a surface at which contact with other component can be made.Type: GrantFiled: February 22, 2021Date of Patent: September 12, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Koji Kusunoki, Yoshiharu Hirakata