Patents by Inventor Mitusaki Osame

Mitusaki Osame 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).

  • Light emitting device and method of driving the light emitting device
    Patent number: 10672329
    Abstract: A light emitting device that achieves long life, and which is capable of performing high duty drive, by suppressing initial light emitting element deterioration is provided. Reverse bias application to an EL element (109) is performed one row at a time by forming a reverse bias electric power source line (112) and a reverse bias TFT (108). Reverse bias application can therefore be performed in synchronous with operations for write-in of an image signal, light emission, erasure, and the like. Reverse bias application therefore becomes possible while maintaining a duty equivalent to that of a conventional driving method.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: June 2, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Mitusaki Osame, Aya Anzai, Yoshifumi Tanada, Keisuke Miyagawa, Satoshi Seo, Shunpei Yamazaki
  • Light Emitting Device and Method of Driving the Light Emitting Device
    Publication number: 20190355297
    Abstract: A light emitting device that achieves long life, and which is capable of performing high duty drive, by suppressing initial light emitting element deterioration is provided. Reverse bias application to an EL element (109) is performed one row at a time by forming a reverse bias electric power source line (112) and a reverse bias TFT (108). Reverse bias application can therefore be performed in synchronous with operations for write-in of an image signal, light emission, erasure, and the like. Reverse bias application therefore becomes possible while maintaining a duty equivalent to that of a conventional driving method.
    Type: Application
    Filed: August 2, 2019
    Publication date: November 21, 2019
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Mitusaki Osame, Aya Anzai, Yoshifumi Tanada, Keisuke Miyagawa, Satoshi Seo, Shunpei Yamazaki