Patents by Inventor Yoshihara HIRAKATA

Yoshihara 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).

  • Patent number: 11018206
    Abstract: A novel display panel that can be used as a reflective display panel in an environment with strong external light and as a self-luminous display panel in a dim environment, for example and that has low power consumption and is highly convenient or reliable is provided. The display panel includes a pixel and a substrate that supports the pixel. The pixel includes a first display element (e.g., a reflective liquid crystal element) that includes a reflective film having an opening as a first conductive film and a second display element (e.g., an organic EL element) that emits light to the opening.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: May 25, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshihara Hirakata, Tetsuji Ishitani, Kenichi Okazaki, Hajime Kimura
  • Publication number: 20200111850
    Abstract: A novel display panel that can be used as a reflective display panel in an environment with strong external light and as a self-luminous display panel in a dim environment, for example and that has low power consumption and is highly convenient or reliable is provided. The display panel includes a pixel and a substrate that supports the pixel. The pixel includes a first display element (e.g., a reflective liquid crystal element) that includes a reflective film having an opening as a first conductive film and a second display element (e.g., an organic EL element) that emits light to the opening.
    Type: Application
    Filed: November 15, 2019
    Publication date: April 9, 2020
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei YAMAZAKI, Yoshihara HIRAKATA, Tetsuji ISHITANI, Kenichi OKAZAKI, Hajime KIMURA
  • Publication number: 20160358986
    Abstract: A novel display panel that can be used as a reflective display panel in an environment with strong external light and as a self-luminous display panel in a dim environment, for example and that has low power consumption and is highly convenient or reliable is provided. The display panel includes a pixel and a substrate that supports the pixel. The pixel includes a first display element (e.g., a reflective liquid crystal element) that includes a reflective film having an opening as a first conductive film and a second display element (e.g., an organic EL element) that emits light to the opening.
    Type: Application
    Filed: July 7, 2016
    Publication date: December 8, 2016
    Inventors: Shunpei YAMAZAKI, Yoshihara HIRAKATA, Tetsuji ISHITANI, Kenichi OKAZAKI, Hajime KIMURA