Patents by Inventor Adam Richard Brown

Adam Richard Brown 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).

  • Electroluminescent devices
    Patent number: 5807627
    Abstract: An electroluminescent device has at least two active semiconductive conjugated polymer light emitting layers arranged between a cathode and an anode. The layers are arranged so that at least part of at least two layers lie in an emission zone of the device.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: September 15, 1998
    Assignee: Cambridge Display Technologies Ltd.
    Inventors: Richard Henry Friend, Andrew Bruce Holmes, Donal Donat Conor Bradley, Paul Leslie Burn, Arno Kraft, Adam Richard Brown, Jeremy Henley Burroughes, Neil Clement Greenham
  • Manufacture of electroluminescent devices
    Patent number: 5747182
    Abstract: In an electroluminescent device which comprises a layer of a semiconductive conjugated polymer between positive and negative charge carrier injecting electrodes, a barrier layer is arranged between the layer of semiconductive conjugated polymer and the charge carrier injecting layer for negative charge carriers. The barrier layer protects the layer of semiconductive conjugated polymer from for example mobile ions released by the reactive charge carrier injecting layer. The barrier layer can in some circumstances also itself be light-emissive.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: May 5, 1998
    Assignee: Cambridge Display Technology Limited
    Inventors: Richard Henry Friend, Andrew Bruce Holmes, Donal Donat Conor Bradley, Paul Leslie Burn, Arno Kraft, Adam Richard Brown, Jeremy Henley Burroughes, Neil Clement Greenham
  • Electroluminescent device comprising a chromophoric polymeric composition
    Patent number: 5653914
    Abstract: An electroluminescent device is provided incorporating an emissive layer comprising a processible polymer matrix such as poly(methylmethacrylate) and a chromophoric component such as an asymmetric stilbene or distyrylbenzene. The chromophoric component is blended with the polymer matrix or covalently attached thereto as a side chain and is selected to emit radiation in the region 400 nm to 500 nm when excited to luminesce.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: August 5, 1997
    Assignee: Cambridge Display Technology Limited
    Inventors: Andrew Bruce Holmes, Arno Kraft, Paul Leslie Burn, Stephen Carl Moratti, Richard Henry Friend, Donal Donat Conor Bradley, Neil Clement Greenham, Adam Richard Brown, Josef Herbert Ferdinand Martens, Franco Cacialli, Johannes Gruener