Patents by Inventor Ryo HATSUMI

Ryo HATSUMI 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).

  • Publication number: 20240004229
    Abstract: 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: Application
    Filed: April 21, 2023
    Publication date: January 4, 2024
    Applicant: Semiconductor Energy Laboratory Co, Ltd.
    Inventors: Shunpei Yamazaki, Yoshiharu HIRAKATA, Tetsuji ISHITANI, Daisuke KUBOTA, Ryo HATSUMI, Masaru NAKANO, Takashi HAMADA
  • Patent number: 11848331
    Abstract: To provide a display device with excellent display quality, in a display device including a signal line, a scan line, a transistor, a pixel electrode, and a common electrode in a pixel, the common electrode is included in which an extending direction of a region overlapping with the signal line differs from an extending direction of a region overlapping with the pixel electrode in a planar shape and the extending directions intersect with each other between the signal line and the pixel electrode. Thus, a change in transmittance of the pixel can be suppressed; accordingly, flickers can be reduced.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: December 19, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daisuke Kubota, Ryo Hatsumi
  • Patent number: 11844236
    Abstract: 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: Grant
    Filed: June 29, 2020
    Date of Patent: December 12, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Daiki Nakamura, Ryo Hatsumi, Rai Sato, Shingo Eguchi, Koji Kusunoki
  • Patent number: 11825726
    Abstract: A display device having a biometric authentication function is provided. A highly convenient display device is provided. The display device includes a first substrate, a light guide plate, a plurality of first light-emitting elements, a second light-emitting element, and a plurality of light-receiving elements. The light guide plate includes a first portion having a first surface and a second portion having a second surface that connects with the first surface and has a different normal direction from the first surface. The first light-emitting elements and the light-receiving elements are provided between the first substrate and the light guide plate. The first light-emitting elements have a function of emitting first light through the light guide plate, and the second light-emitting element has a function of emitting second light to a side surface of the light guide plate. The light-receiving elements have a function of receiving the second light and converting the second light to an electric signal.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: November 21, 2023
    Inventors: Daisuke Kubota, Ryo Hatsumi, Taisuke Kamada
  • Publication number: 20230359076
    Abstract: An increase in fabricating cost of a display module including a touch sensor is suppressed. A display device which includes a first substrate, a second substrate, and liquid crystal interposed between the first substrate and the second substrate includes a display portion. The display portion includes a sensor unit and a pixel. The sensor unit includes a first transistor, a first conductive film electrically connected to a gate of the first transistor, and a second conductive film. At least part of the first conductive film overlaps with at least part of the second conductive film. The pixel includes a second transistor, and a pixel electrode electrically connected to the second transistor. At least part of the pixel electrode overlaps with at least part of the first conductive film.
    Type: Application
    Filed: July 7, 2023
    Publication date: November 9, 2023
    Inventors: Ryo HATSUMI, Tetsuji ISHITANI
  • Patent number: 11804064
    Abstract: An electronic device capable of detecting a difference in the way of touch is provided. An electronic device capable of detecting a difference in the way of touch with a small number of components is provided. An electronic device capable of executing various types of processes with simple operation is provided. The electronic device includes a control portion and a display portion. The display portion has a function of displaying an image on a screen and includes a detection portion. The detection portion has a function of detecting a touch operation and a function of imaging, at least twice, a detection object touching the screen. The control portion has a function of calculating a difference between the area of the detection object in first imaging and the area of the detection object in second imaging to execute a different process depending on whether the difference is larger or smaller than a reference.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: October 31, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Koji Kusunoki, Daisuke Kubota, Ryo Hatsumi
  • Patent number: 11789568
    Abstract: A display device having a photosensing function is provided. A display device having a biometric authentication function typified by fingerprint authentication is provided. A display device having both a touch panel function and a biometric authentication function is provided. The display device includes a first substrate, a light guide plate, a first light-emitting element, a second light-emitting element, and a light-receiving element. The first substrate and the light guide plate are provided to face each other. The first light-emitting element and the light-receiving element are provided between the first substrate and the light guide plate. The first light-emitting element has a function of emitting first light through the light guide plate. The second light-emitting element has a function of emitting second light to a side surface of the light guide plate. The light-receiving element has a function of receiving the second light and converting the second light into an electric signal.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: October 17, 2023
    Inventors: Daisuke Kubota, Ryo Hatsumi, Taisuke Kamada
  • Publication number: 20230296910
    Abstract: An optical device with less influence of stray light is provided. The optical device is thin and includes a half mirror, a first lens, a retardation plate, a reflective polarizing plate, and a second lens. In the optical device, a geometric phase lens which has negative and positive refractive power is used as the first lens, whereby images can be focused after magnified optically. Thus, the optical device can have a wide viewing angle. In the case where stray light occurs due to birefringence of an optical material, negative refractive power of the first lens can prevent the stray light from being focused on the eye direction. Accordingly, image degradation recognized due to stray light can be prevented.
    Type: Application
    Filed: March 13, 2023
    Publication date: September 21, 2023
    Inventors: Takeya HIROSE, Ryo HATSUMI, Hisao IKEDA, Daiki NAKAMURA, Yosuke TSUKAMOTO
  • Publication number: 20230288758
    Abstract: A display device with less light leakage and excellent contrast is provided. A display device having a high aperture ratio and including a large-capacitance capacitor is provided. A display device in which wiring delay due to parasitic capacitance is reduced is provided. A display device includes a transistor over a substrate, a pixel electrode connected to the transistor, a signal line electrically connected to the transistor, a scan line electrically connected to the transistor and intersecting with the signal line, and a common electrode overlapping with the pixel electrode and the signal line with an insulating film provided therebetween. The common electrode includes stripe regions extending in a direction intersecting with the signal line.
    Type: Application
    Filed: May 2, 2023
    Publication date: September 14, 2023
    Inventors: Ryo HATSUMI, Daisuke KUBOTA, Hiroyuki MIYAKE
  • Publication number: 20230255094
    Abstract: An object is to provide a highly reliable display unit having a function of sensing light. The display unit includes a light-receiving device and a light-emitting device. The light-receiving device includes an active layer between a pair of electrodes. The light-emitting device includes a hole-injection layer, a light-emitting layer, and an electron-transport layer between a pair of electrodes. The light-receiving device and the light-emitting device share one of the electrodes, and may further share another common layer between the pair of electrodes. The hole-injection layer is in contact with an anode and contains a first compound and a second compound. The electron-transport property of the electron-transport layer is low; hence, the light-emitting layer is less likely to have excess electrons. Here, the first compound is the material having a property of accepting electrons from the second compound.
    Type: Application
    Filed: April 14, 2023
    Publication date: August 10, 2023
    Inventors: Taisuke KAMADA, Ryo HATSUMI, Daisuke KUBOTA, Naoaki HASHIMOTO, Tsunenori SUZUKI, Harue OSAKA, Satoshi SEO
  • Publication number: 20230247873
    Abstract: A display apparatus that has a light sensing function is provided. A display apparatus that has high light sensitivity is provided. The display apparatus includes a light-receiving element, a light-emitting element, a conductive layer, and a first wiring. The light-receiving element includes a first pixel electrode, a common layer, an active layer, and a common electrode. The light-emitting element includes a second pixel electrode, the common layer, a light-emitting layer, and the common electrode. The conductive layer is provided over the same surface as the first pixel electrode and the second pixel electrode, is positioned between the first pixel electrode and the second pixel electrode, is electrically connected to the common layer, and is electrically connected to the first wiring to which a first potential is supplied.
    Type: Application
    Filed: June 24, 2021
    Publication date: August 3, 2023
    Inventors: Daisuke KUBOTA, Daiki NAKAMURA, Ryo HATSUMI, Nozomu SUGISAWA
  • Publication number: 20230237831
    Abstract: An electronic device having an authentication method with a high security level is provided. The electronic device includes a pixel portion, a sensor portion, an authentication portion, and a housing. The pixel portion includes a display element and a light-receiving element. The pixel portion has a function of turning on the display element. The pixel portion has a function of obtaining authentication information by capturing an image of a target object touching the pixel portion. The sensor portion has a function of detecting attachment or detachment to a living body or an object. The authentication portion has a function of performing authentication processing with the use of the authentication information. The housing includes a first surface and a second surface opposite to the first surface. The pixel portion is positioned on the first surface and the sensor portion is positioned on the second surface.
    Type: Application
    Filed: June 14, 2021
    Publication date: July 27, 2023
    Inventors: Shunpei YAMAZAKI, Koji KUSUNOKI, Daisuke KUBOTA, Ryo HATSUMI
  • Publication number: 20230228970
    Abstract: A method for operating an electronic device, which is easy on eyes, is provided. The electronic device includes a display device including a light-emitting device and a light-receiving device, and a lens.
    Type: Application
    Filed: January 10, 2023
    Publication date: July 20, 2023
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeya Hirose, Hisao IKEDA, Ryo HATSUMI, Daiki NAKAMURA, Yosuke TSUKAMOTO
  • Patent number: 11698547
    Abstract: An increase in fabricating cost of a display module including a touch sensor is suppressed. A display device which includes a first substrate, a second substrate, and liquid crystal interposed between the first substrate and the second substrate includes a display portion. The display portion includes a sensor unit and a pixel. The sensor unit includes a first transistor, a first conductive film electrically connected to a gate of the first transistor, and a second conductive film. At least part of the first conductive film overlaps with at least part of the second conductive film. The pixel includes a second transistor, and a pixel electrode electrically connected to the second transistor. At least part of the pixel electrode overlaps with at least part of the first conductive film.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: July 11, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Ryo Hatsumi, Tetsuji Ishitani
  • Patent number: 11675236
    Abstract: A display device with less light leakage and excellent contrast is provided. A display device having a high aperture ratio and including a large-capacitance capacitor is provided. A display device in which wiring delay due to parasitic capacitance is reduced is provided. A display device includes a transistor over a substrate, a pixel electrode connected to the transistor, a signal line electrically connected to the transistor, a scan line electrically connected to the transistor and intersecting with the signal line, and a common electrode overlapping with the pixel electrode and the signal line with an insulating film provided therebetween. The common electrode includes stripe regions extending in a direction intersecting with the signal line.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: June 13, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Ryo Hatsumi, Daisuke Kubota, Hiroyuki Miyake
  • Publication number: 20230180491
    Abstract: A novel optical functional device that is highly convenient, useful, or reliable is provided. The optical functional device includes a light-emitting function, a photoelectric conversion function, a first electrode, a second electrode, and an optical functional layer. The light-emitting function converts electrical energy into first light, the first light has a first emission spectrum, and the first emission spectrum exhibits a maximum peak at a first wavelength. At a second wavelength, the intensity of the first emission spectrum is 80% of the maximum peak. The photoelectric conversion function has a spectral sensitivity characteristic; at a third wavelength, the spectral sensitivity characteristic has a maximum sensitivity within a range of 420 to 720 nm inclusive; and at a fourth wavelength, the sensitivity of the spectral sensitivity characteristic is 80% of the maximum sensitivity.
    Type: Application
    Filed: May 17, 2021
    Publication date: June 8, 2023
    Inventors: Taisuke KAMADA, Yasuhiro NIIKURA, Daisuke KUBOTA, Ryo HATSUMI, Akio YAMASHITA, Sachiko KAWAKAMI, Satoshi SEO
  • Patent number: 11659758
    Abstract: An object is to provide a highly reliable display unit having a function of sensing light. The display unit includes a light-receiving device and a light-emitting device. The light-receiving device includes an active layer between a pair of electrodes. The light-emitting device includes a hole-injection layer, a light-emitting layer, and an electron-transport layer between a pair of electrodes. The light-receiving device and the light-emitting device share one of the electrodes, and may further share another common layer between the pair of electrodes. The hole-injection layer is in contact with an anode and contains a first compound and a second compound. The electron-transport property of the electron-transport layer is low; hence, the light-emitting layer is less likely to have excess electrons. Here, the first compound is the material having a property of accepting electrons from the second compound.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: May 23, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Taisuke Kamada, Ryo Hatsumi, Daisuke Kubota, Naoaki Hashimoto, Tsunenori Suzuki, Harue Osaka, Satoshi Seo
  • Publication number: 20230157123
    Abstract: An imaging device or a display device that is capable of clearly capturing an image of a fingerprint or the like can be provided. The display device includes a light-receiving element, a light-emitting element, a first substrate, a second substrate, a first resin layer, a second resin layer, and a light-blocking layer. The first resin layer, the second resin layer, and the second substrate are stacked over the first substrate. The light-receiving element and the light-emitting element are positioned between the first substrate and the first resin layer. The light-blocking layer is positioned between the first resin layer and the second resin layer and includes an opening portion overlapping with the light-receiving element. The opening portion in the light-blocking layer is positioned on an inner side of a light-receiving region of the light-receiving element in a plan view, and the width of the opening portion is less than or equal to the width of the light-receiving region.
    Type: Application
    Filed: April 2, 2021
    Publication date: May 18, 2023
    Inventors: Daisuke KUBOTA, Ryo HATSUMI
  • Patent number: 11635648
    Abstract: 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: Grant
    Filed: June 24, 2022
    Date of Patent: April 25, 2023
    Inventors: Shunpei Yamazaki, Yoshiharu Hirakata, Tetsuji Ishitani, Daisuke Kubota, Ryo Hatsumi, Masaru Nakano, Takashi Hamada
  • Publication number: 20230117024
    Abstract: A display device provided with an image capturing function is provided. A display device with both high viewing angle characteristics and high image capturing performance is provided. The display device includes a light-emitting and light-receiving element and a color filter. The light-emitting and light-receiving element includes a light-emitting and light-receiving region having a function of emitting light of the first color and a function of receiving light of the second color. The color filter is positioned over the light-emitting and light-receiving element and has a function of transmitting the light of the first color and a function of blocking the light of the second color. The color filter includes an opening portion. The light-emitting and light-receiving region includes a portion positioned in the inside of the opening portion in the plan view.
    Type: Application
    Filed: January 19, 2021
    Publication date: April 20, 2023
    Inventors: Daisuke KUBOTA, Ryo HATSUMI