Patents by Inventor Shaoduan LIANG

Shaoduan LIANG 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).

  • MASK DEVICE AND EVAPORATION METHOD
    Publication number: 20210214836
    Abstract: The present disclosure provides a mask device and an evaporation method. The mask device includes a first mask plate. The first mask plate includes a first frame, and a first mask strip on the first frame. The first mask strip includes: a first sub-mask strip and a second sub-mask strip spliced with each other; the first sub-mask strip includes a first hollow region; and a thickness of a central region of the second sub-mask strip is less than a thickness of an edge region of the second sub-mask strip, the edge region of the second sub-mask strip surrounding the central region of the second sub-mask strip.
    Type: Application
    Filed: April 24, 2020
    Publication date: July 15, 2021
    Inventors: Fengli JI, Shaoduan LIANG, Xiaoyu YANG, Fangfang DUAN, Chang LUO