Patents by Inventor Kyujeong Chang

Kyujeong Chang 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).

  • Thin film transistor for a plate display
    Patent number: 5068699
    Abstract: There is disclosed a thin film transistor for a plate display comprising first and second gates of different metals stacked one on top of the other on a glass substrate, a first insulating layer of tantalum oxide film formed on top of said second gate, second and third insulating layers of silicon dioxide formed successively on the first insulating layer and a semiconductor layer deposited on said third insulating layer.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: November 26, 1991
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kyujeong Chang