Patents by Inventor Lee Choon Rae

Lee Choon Rae 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).

  • Negative voltage driving of a carbon nanotube field emissive display
    Patent number: 7005807
    Abstract: An electron-emitting display device contains an emitter electrode, an anode and a gate electrode and an electron emission control device. The electron emission control device includes a plurality of voltage controllers which applies a positive voltage charge to the anode and emitter electrode respective. A third voltage controller applies a negative voltage charge to the gate inhibiting electron emission from electron emissive elements in the display device.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: February 28, 2006
    Assignee: cDream Corporation
    Inventors: Chang Chul Ha, Lee Choon Rae