Patents by Inventor Dirk Metzdorf

Dirk Metzdorf 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: 20060127565
    Abstract: A method for microstructuring by means of locally selective sublimation is disclosed, whereby patterns or images of organic electroluminescent components are produced by application of low molecular weight emission material, provided on a support, to those points of substrate corresponding to the pattern or image for production, by means of sublimation. According to the invention, the method is carried out by firstly completely coating a film support made from temperature-resistant material with the emission material. The coated support and the substrate are then placed adjacent and parallel to each other in a vacuum chamber. The side of the support coated with the emission material faces the substrate. The support is subsequently locally heated for a short period of time on the non-coated side thereof in those positions corresponding to the pattern or image for generation, to a temperature adequate for the sublimation of the emission material.
    Type: Application
    Filed: October 1, 2003
    Publication date: June 15, 2006
    Applicant: NOKIA CORPORATION
    Inventors: Eike Becker, Dirk Heithecker, Dirk Metzdorf, Hermann Johannes, Thomas Dobbertin, Daniel Schneider, Wolfgang Kowalsky
  • Patent number: 6617184
    Abstract: The process of minimizing the operating voltage of an organic light emitting diode includes the steps of providing a transparent substrate and applying a transparent bottom electrode thereto. It furthermore includes the step of applying to the bottom electrode a semitransparent layer of a metal having a work function in the range from 4 to 7 eV and applying to the semitransparent layer at least one organic functional layer and a top electrode including magnesium and silver.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: September 9, 2003
    Assignee: Siemens Aktiengesellschaft
    Inventors: Achim Böhler, Stefan Wiese, Dirk Metzdorf, Wolfgang Kowalsky
  • Publication number: 20010025956
    Abstract: The process of minimizing the operating voltage of an organic light emitting diode includes the steps of providing a transparent substrate and applying a transparent bottom electrode thereto. It furthermore includes the step of applying to the bottom electrode a semitransparent layer of a metal having a work function in the range from 4 to 7 eV and applying to the semitransparent layer at least one organic functional layer and a top electrode including magnesium and silver.
    Type: Application
    Filed: June 1, 2001
    Publication date: October 4, 2001
    Applicant: Siemens Aktiengesellschaft
    Inventors: Achim Bohler, Stefan Wiese, Dirk Metzdorf, Wolfgang Kowalsky
  • Patent number: 6262441
    Abstract: An organic light emitting diode includes a transparent bottom electrode located on a substrate, a top electrode, at least one organic functional layer disposed between the bottom electrode and the top electrode and a semitransparent layer located on the bottom electrode. The semitransparent layer is formed of a metal having a work function of between 4 and 7 eV.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: July 17, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Achim Böhler, Stefan Wiese, Dirk Metzdorf, Wolfgang Kowalsky