Patents by Inventor IAN KEITH ALEXANDER

IAN KEITH ALEXANDER 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).

  • Organic light-emitting diode light source comprising a polyester film and a method of improving light extraction from said light source
    Patent number: 9711758
    Abstract: An organic light-emitting diode (OLED) light source includes, in order: (i) a biaxially oriented polyester film substrate including light-scattering particles (P1); (ii) optionally an organic planarising coating layer (OPC1); (iii) optionally a barrier layer (B1); (iv) an organic planarising coating layer (OPC2) including light-scattering particles (P2); (v) optionally a barrier layer (B2); and (vi) a multi-layer light-emitting assembly including a first electrode, a light-emitting organic layer and a second electrode; wherein the OLED light source includes at least one of barrier layers (B1) and (B2).
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: July 18, 2017
    Assignees: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP, NEDERLANDSE ORGANISATIE VOOR TOEGPAST NATUURWETENSCHAPPELIJK ONDERZOEK TNO
    Inventors: Duncan Henry Mackerron, Stephan Harkema, Ian Keith Alexander
  • AN ORGANIC LIGHT-EMITTING DIODE LIGHT SOURCE COMPRISING A POLYESTER FILM AND A METHOD OF IMPROVING LIGHT EXTRACTION FROM SAID LIGHT SOURCE
    Publication number: 20170162828
    Abstract: An organic light-emitting diode (OLED) light source includes, in order: (i) a biaxially oriented polyester film substrate including light-scattering particles (P1); (ii) optionally an organic planarising coating layer (OPC1); (iii) optionally a barrier layer (B1); (iv) an organic planarising coating layer (OPC2) including light-scattering particles (P2); (v) optionally a barrier layer (B2); and (vi) a multi-layer light-emitting assembly including a first electrode, a light-emitting organic layer and a second electrode; wherein the OLED light source includes at least one of barrier layers (B1) and (B2).
    Type: Application
    Filed: July 24, 2015
    Publication date: June 8, 2017
    Applicant: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: DUNCAN HENRY MACKERRON, STEPHAN HARKEMA, IAN KEITH ALEXANDER