Patents by Inventor Koji SHIGAMURA

Koji SHIGAMURA 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).

  • Display substrate and manufacturing method thereof, display panel and display device
    Patent number: 10634943
    Abstract: The present disclosure provides a display substrate and a manufacturing method thereof, and a display panel. The display substrate has a display area and a peripheral area surrounding the display area, wherein a plurality of force sensors is provided in the peripheral area and the plurality of force sensors is made of polysilicon material, in a direction perpendicular to the display substrate, a first layer is provided directly under a layer where the plurality of force sensors is located, and a second layer is provided directly above the layer where the plurality of force sensors is located, a Young's modulus of at least one of the first layer and the second layer is larger than a Young's modulus of silicon oxide. The technical solution of the present disclosure can improve the detection accuracy of the force sensor with respect to a force.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: April 28, 2020
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Feng Lu, Koji Shigamura
  • Display substrate and manufacturing method thereof, display panel and display device
    Patent number: 10598981
    Abstract: The present disclosure provides a display substrate and a manufacturing method thereof, and a display panel. The display substrate has a display area and a peripheral area surrounding the display area, wherein a plurality of force sensors is provided in the peripheral area and the plurality of force sensors is made of polysilicon material, in a direction perpendicular to the display substrate, a first layer is provided directly under a layer where the plurality of force sensors is located, and a second layer is provided directly above the layer where the plurality of force sensors is located, a Young's modulus of at least one of the first layer and the second layer is larger than a Young's modulus of silicon oxide. The technical solution of the present disclosure can improve the detection accuracy of the force sensor with respect to a force.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: March 24, 2020
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Feng Lu, Koji Shigamura
  • DISPLAY SUBSTRATE AND MANUFACTURING METHOD THEREOF, DISPLAY PANEL AND DISPLAY DEVICE
    Publication number: 20190025637
    Abstract: The present disclosure provides a display substrate and a manufacturing method thereof, and a display panel. The display substrate has a display area and a peripheral area surrounding the display area, wherein a plurality of force sensors is provided in the peripheral area and the plurality of force sensors is made of polysilicon material, in a direction perpendicular to the display substrate, a first layer is provided directly under a layer where the plurality of force sensors is located, and a second layer is provided directly above the layer where the plurality of force sensors is located, a Young's modulus of at least one of the first layer and the second layer is larger than a Young's modulus of silicon oxide. The technical solution of the present disclosure can improve the detection accuracy of the force sensor with respect to a force.
    Type: Application
    Filed: March 13, 2018
    Publication date: January 24, 2019
    Inventors: Feng LU, Koji SHIGAMURA