Patents by Inventor Jurjen Wildeman

Jurjen Wildeman 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).

  • Copolymer for charge transport layer in opto-electronic device
    Patent number: 7767776
    Abstract: The invention relates to a copolymer for a charge transport layer in an optoelectronic device and in particular in a light-emitting diode (LED), having a charge mobility of at least 1.0×1010 m2/V.s, and comprising at least a first and a second monomer, characterized in that the ratio of the solubilities of homopolymers made from the first and the second monomer in a first solvent is more than 10. This copolymer allows a (semi) conductive polymer to be cast to form a first layer and prevents it from being dissolved in the solvent of a subsequently deposited second, e.g. light-emitting layer. The invention further relates to a LED comprising a copolymer according to the invention.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: August 3, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Paulus Wilhelmus Maria Blom, Jurjen Wildeman
  • COPOLYMER FOR CHARGE TRANSPORT LAYER IN OPTO-ELECTRONIC DEVICE
    Publication number: 20090128007
    Abstract: The invention relates to a copolymer for a charge transport layer in an optoelectronic device and in particular in a light-emitting diode (LED), having a charge mobility of at least 1.0×1010 m2/V.s, and comprising at least a first and a second monomer, characterized in that the ratio of the solubilities of homopolymers made from the first and the second monomer in a first solvent is more than 10. This copolymer allows a (semi) conductive polymer to be cast to form a first layer and prevents it from being dissolved in the solvent of a subsequently deposited second, e.g. light-emitting layer. The invention further relates to a LED comprising a copolymer according to the invention.
    Type: Application
    Filed: October 24, 2005
    Publication date: May 21, 2009
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Paulus Wilhelmus Maria Blom, Jurjen Wildeman