Patents by Inventor Cheng-hsiem Han

Cheng-hsiem Han 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).

  • Publication number: 20020135295
    Abstract: A field emission display panel that utilizes nanotube emitters as electron sources and is equipped with two cathodes i.e. a primary cathode and an auxiliary cathode, and an anode is provided. The nanotube emitters can be suitably formed by nanometer-dimensioned hollow tubes of carbon, diamond or diamond-like carbon mixed in a polymeric-based binder. The nanotube emitters are formed in two parallelly-positioned, spaced-apart rows on top of an electrode layer such as a silver paste by a thick film printing technique. Since both the primary cathode and the anode are formed on the bottom glass plate, the operating voltage can be controlled by the thickness of the dielectric layer that is used in forming the nanotube emitter stacks. An auxiliary cathode formed of an electrically conductive material is coated on the interior surface of a top glass plate to further repel electrons in a downward direction toward the anode on the bottom glass plate.
    Type: Application
    Filed: March 20, 2001
    Publication date: September 26, 2002
    Applicant: Industrial Technology Research Institute
    Inventors: Wen-Chun Wang, Cheng-Chung Lee, Feng-Yu Chuang, Jane-Hway Liao, Jyh-Rong Sheu, Cheng-hsiem Han