Patents by Inventor Rihito Wada

Rihito Wada 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: 20230422577
    Abstract: A display device in which a voltage drop is inhibited is provided.
    Type: Application
    Filed: February 9, 2022
    Publication date: December 28, 2023
    Inventors: Satoshi SEO, Rihito WADA
  • Publication number: 20230187453
    Abstract: A display device includes a pixel portion in which a pixel electrode layer is arranged in a matrix, and an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen is provided corresponding to the pixel electrode layer. In the periphery of the pixel portion in this display device, a pad portion is provided to be electrically connected to a common electrode layer formed on a counter substrate through a conductive layer made of the same material as the pixel electrode layer. One objection of our invention to prevent a defect due to separation of a thin film in various kinds of display devices is realized, by providing a structure suitable for a pad portion provided in a display panel.
    Type: Application
    Filed: February 6, 2023
    Publication date: June 15, 2023
    Inventors: Shunpei YAMAZAKI, Kengo AKIMOTO, Shigeki KOMORI, Hideki UOCHI, Rihito WADA, Yoko CHIBA
  • Patent number: 11610918
    Abstract: A display device includes a pixel portion in which a pixel electrode layer is arranged in a matrix, and an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen is provided corresponding to the pixel electrode layer. In the periphery of the pixel portion in this display device, a pad portion is provided to be electrically connected to a common electrode layer formed on a counter substrate through a conductive layer made of the same material as the pixel electrode layer. One objection of our invention to prevent a defect due to separation of a thin film in various kinds of display devices is realized, by providing a structure suitable for a pad portion provided in a display panel.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: March 21, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kengo Akimoto, Shigeki Komori, Hideki Uochi, Rihito Wada, Yoko Chiba
  • Publication number: 20230014360
    Abstract: To provide an electronic device capable of recognizing a user's emotion with a high accuracy. The electronic device includes a detection device, an arithmetic device, and a housing. The housing includes a space at a position overlapping with a user's nose when the user wears the electronic device. The detection device is located between the housing and the user's nose. The detection device has a function of obtaining user's data on an emotion of the user and outputting the user's data to the arithmetic device. The arithmetic device has a function of generating display data based on the user's data and outputting the display data.
    Type: Application
    Filed: November 30, 2020
    Publication date: January 19, 2023
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hajime Kimura, Rihito WADA
  • Publication number: 20220180159
    Abstract: A system that creates a net list from a circuit diagram or a document showing a circuit structure is provided. The system is an AI system including a first electronic device. The first electronic device includes an input/output interface, a control portion, and a first conversion portion. The input/output interface is electrically connected to the control portion, and the first conversion portion is electrically connected to the control portion. The input/output interface has a function of transmitting input data generated by a user's operation to the control portion, and the control portion has a function of transmitting the input data to the first conversion portion. Note that the input data is a circuit diagram illustrating a circuit structure or a document file showing the circuit structure. The first conversion portion includes a circuit where a neural network is formed, and the input data is converted to a net list with the use of the neural network of the first conversion portion.
    Type: Application
    Filed: January 24, 2020
    Publication date: June 9, 2022
    Inventors: Hajime KIMURA, Rihito WADA, Masayuki KIMURA, Yoshiyuki KUROKAWA, Takeshi AOKI
  • Publication number: 20220020841
    Abstract: A display device includes a pixel portion in which a pixel is arranged in a matrix, the pixel including an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen and having a channel protective layer over a semiconductor layer to be a channel formation region overlapping a gate electrode layer and a pixel electrode layer electrically connected to the inverted staggered thin film transistor. In the periphery of the pixel portion in this display device, a pad portion including a conductive layer made of the same material as the pixel electrode layer is provided. In addition, the conductive layer is electrically connected to a common electrode layer formed on a counter substrate.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 20, 2022
    Inventors: Shunpei YAMAZAKI, Kengo AKIMOTO, Shigeki KOMORI, Hideki UOCHI, Rihito WADA, Yoko CHIBA
  • Patent number: 11139359
    Abstract: A display device includes a pixel portion in which a pixel is arranged in a matrix, the pixel including an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen and having a channel protective layer over a semiconductor layer to be a channel formation region overlapping a gate electrode layer and a pixel electrode layer electrically connected to the inverted staggered thin film transistor. In the periphery of the pixel portion in this display device, a pad portion including a conductive layer made of the same material as the pixel electrode layer is provided. In addition, the conductive layer is electrically connected to a common electrode layer formed on a counter substrate.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: October 5, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kengo Akimoto, Shigeki Komori, Hideki Uochi, Rihito Wada, Yoko Chiba
  • Publication number: 20200111816
    Abstract: A display device includes a pixel portion in which a pixel electrode layer is arranged in a matrix, and an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen is provided corresponding to the pixel electrode layer. In the periphery of the pixel portion in this display device, a pad portion is provided to be electrically connected to a common electrode layer formed on a counter substrate through a conductive layer made of the same material as the pixel electrode layer. One objection of our invention to prevent a defect due to separation of a thin film in various kinds of display devices is realized, by providing a structure suitable for a pad portion provided in a display panel.
    Type: Application
    Filed: December 5, 2019
    Publication date: April 9, 2020
    Inventors: Shunpei YAMAZAKI, Kengo AKIMOTO, Shigeki KOMORI, Hideki UOCHI, Rihito WADA, Yoko CHIBA
  • Patent number: 10559599
    Abstract: A display device includes a pixel portion in which a pixel electrode layer is arranged in a matrix, and an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen is provided corresponding to the pixel electrode layer. In the periphery of the pixel portion in this display device, a pad portion is provided to be electrically connected to a common electrode layer formed on a counter substrate through a conductive layer made of the same material as the pixel electrode layer. One objection of our invention to prevent a defect due to separation of a thin film in various kinds of display devices is realized, by providing a structure suitable for a pad portion provided in a display panel.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: February 11, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kengo Akimoto, Shigeki Komori, Hideki Uochi, Rihito Wada, Yoko Chiba
  • Patent number: 10529926
    Abstract: To provide a highly flexible display device excellent in mass-productivity. A display device includes a flexible substrate, an adhesive layer over the substrate, a resin layer over the adhesive layer, an inorganic insulating layer over the resin layer, a transistor over the inorganic insulating layer, and a display element electrically connected to the transistor. The transistor includes an oxide semiconductor in a channel formation region. The resin layer includes sulfur.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: January 7, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Takahiro Sato, Shunsuke Koshioka, Rihito Wada, Junko Suzawa
  • Patent number: 10276089
    Abstract: An electronic device includes a display portion, an imaging portion, a control portion, an input portion, and a sensor portion. The display portion has a first display element that reflects visible light and a second display element that emits visible light. The display portion has a function of displaying an image using one of or both first light reflected by the first display element and second light emitted from the second display element. The imaging portion takes an image of an object, the control portion controls the display portion and the imaging portion, the input portion inputs a signal for controlling the display portion and the imaging portion to the control portion, and the sensor portion outputs sensing data to the control portion, in consideration of illuminance of external light. Such a display device increases the display quality, or keeps high-quality display regardless of environmental conditions and reduces power consumption.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: April 30, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Takahashi, Kunio Kimura, Rihito Wada
  • Publication number: 20180315779
    Abstract: A display device includes a pixel portion in which a pixel electrode layer is arranged in a matrix, and an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen is provided corresponding to the pixel electrode layer. In the periphery of the pixel portion in this display device, a pad portion is provided to be electrically connected to a common electrode layer formed on a counter substrate through a conductive layer made of the same material as the pixel electrode layer. One objection of our invention to prevent a defect due to separation of a thin film in various kinds of display devices is realized, by providing a structure suitable for a pad portion provided in a display panel.
    Type: Application
    Filed: June 21, 2018
    Publication date: November 1, 2018
    Inventors: Shunpei YAMAZAKI, Kengo AKIMOTO, Shigeki KOMORI, Hideki UOCHI, Rihito WADA, Yoko CHIBA
  • Publication number: 20180309056
    Abstract: To provide a highly flexible display device excellent in mass-productivity. A display device includes a flexible substrate, an adhesive layer over the substrate, a resin layer over the adhesive layer, an inorganic insulating layer over the resin layer, a transistor over the inorganic insulating layer, and a display element electrically connected to the transistor. The transistor includes an oxide semiconductor in a channel formation region. The resin layer includes sulfur.
    Type: Application
    Filed: June 18, 2018
    Publication date: October 25, 2018
    Inventors: Shunpei YAMAZAKI, Takahiro SATO, Shunsuke KOSHIOKA, Rihito WADA, Junko SUZAWA
  • Patent number: 10032796
    Abstract: A display device includes a pixel portion in which a pixel electrode layer is arranged in a matrix, and an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen is provided corresponding to the pixel electrode layer. In the periphery of the pixel portion in this display device, a pad portion is provided to be electrically connected to a common electrode layer formed on a counter substrate through a conductive layer made of the same material as the pixel electrode layer. One objection of our invention to prevent a defect due to separation of a thin film in various kinds of display devices is realized, by providing a structure suitable for a pad portion provided in a display panel.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: July 24, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kengo Akimoto, Shigeki Komori, Hideki Uochi, Rihito Wada, Yoko Chiba
  • Patent number: 10003023
    Abstract: To provide a highly flexible display device excellent in mass-productivity. A display device includes a flexible substrate, an adhesive layer over the substrate, a resin layer over the adhesive layer, an inorganic insulating layer over the resin layer, a transistor over the inorganic insulating layer, and a display element electrically connected to the transistor. The transistor includes an oxide semiconductor in a channel formation region. The resin layer includes sulfur.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: June 19, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Takahiro Sato, Shunsuke Koshioka, Rihito Wada, Junko Suzawa
  • Publication number: 20180005567
    Abstract: An electronic device includes a display portion, an imaging portion, a control portion, an input portion, and a sensor portion. The display portion has a first display element that reflects visible light and a second display element that emits visible light. The display portion has a function of displaying an image using one of or both first light reflected by the first display element and second light emitted from the second display element. The imaging portion takes an image of an object, the control portion controls the display portion and the imaging portion, the input portion inputs a signal for controlling the display portion and the imaging portion to the control portion, and the sensor portion outputs sensing data to the control portion, in consideration of illuminance of external light. Such a display device increases the display quality, or keeps high-quality display regardless of environmental conditions and reduces power consumption.
    Type: Application
    Filed: June 26, 2017
    Publication date: January 4, 2018
    Inventors: Minoru TAKAHASHI, Kunio KIMURA, Rihito WADA
  • Publication number: 20170301860
    Abstract: To provide a highly flexible display device excellent in mass-productivity. A display device includes a flexible substrate, an adhesive layer over the substrate, a resin layer over the adhesive layer, an inorganic insulating layer over the resin layer, a transistor over the inorganic insulating layer, and a display element electrically connected to the transistor. The transistor includes an oxide semiconductor in a channel formation region. The resin layer includes sulfur.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 19, 2017
    Inventors: Shunpei YAMAZAKI, Takahiro SATO, Shunsuke KOSHIOKA, Rihito WADA, Junko SUZAWA
  • Publication number: 20170040409
    Abstract: A display device includes a pixel portion in which a pixel is arranged in a matrix, the pixel including an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen and having a channel protective layer over a semiconductor layer to be a channel formation region overlapping a gate electrode layer and a pixel electrode layer electrically connected to the inverted staggered thin film transistor. In the periphery of the pixel portion in this display device, a pad portion including a conductive layer made of the same material as the pixel electrode layer is provided. In addition, the conductive layer is electrically connected to a common electrode layer formed on a counter substrate.
    Type: Application
    Filed: October 18, 2016
    Publication date: February 9, 2017
    Inventors: Shunpei YAMAZAKI, Kengo AKIMOTO, Shigeki KOMORI, Hideki UOCHI, Rihito WADA, Yoko CHIBA
  • Patent number: 9478597
    Abstract: A display device includes a pixel portion in which a pixel is arranged in a matrix, the pixel including an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen and having a channel protective layer over a semiconductor layer to be a channel formation region overlapping a gate electrode layer and a pixel electrode layer electrically connected to the inverted staggered thin film transistor. In the periphery of the pixel portion in this display device, a pad portion including a conductive layer made of the same material as the pixel electrode layer is provided. In addition, the conductive layer is electrically connected to a common electrode layer formed on a counter substrate.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: October 25, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kengo Akimoto, Shigeki Komori, Hideki Uochi, Rihito Wada, Yoko Chiba
  • Publication number: 20160190177
    Abstract: A display device includes a pixel portion in which a pixel electrode layer is arranged in a matrix, and an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen is provided corresponding to the pixel electrode layer. In the periphery of the pixel portion in this display device, a pad portion is provided to be electrically connected to a common electrode layer formed on a counter substrate through a conductive layer made of the same material as the pixel electrode layer. One objection of our invention to prevent a defect due to separation of a thin film in various kinds of display devices is realized, by providing a structure suitable for a pad portion provided in a display panel.
    Type: Application
    Filed: March 8, 2016
    Publication date: June 30, 2016
    Inventors: Shunpei YAMAZAKI, Kengo AKIMOTO, Shigeki KOMORI, Hideki UOCHI, Rihito WADA, Yoko CHIBA