Patents by Inventor Paul A. Burrows

Paul A. Burrows 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: 20060286409
    Abstract: Organic light emitting devices are disclosed, which comprise a heterostructure for producing electroluminescence, wherein the heterostructure comprises an emissive layer containing a phosphorescent dopant compound.
    Type: Application
    Filed: August 23, 2006
    Publication date: December 21, 2006
    Inventors: Mark Thompson, Yujian You, Andrei Shoustikov, Scott Sibley, Paul Burrows, Stephen Forrest
  • Publication number: 20060216951
    Abstract: A method of making an encapsulated plasma sensitive device. The method comprises: providing a plasma sensitive device adjacent to a substrate; depositing a plasma protective layer on the plasma sensitive device using a process selected from non-plasma based processes, or modified sputtering processes; and depositing at least one barrier stack adjacent to the plasma protective layer, the at least one barrier stack comprising at least one decoupling layer and at least one barrier layer, the plasma sensitive device being encapsulated between the substrate and the at least one barrier stack, wherein the decoupling layer, the barrier layer, or both are deposited using a plasma process, the encapsulated plasma sensitive device having a reduced amount of damage caused by the plasma compared to an encapsulated plasma sensitive device made without the plasma protective layer. An encapsulated plasma sensitive device is also described.
    Type: Application
    Filed: May 23, 2006
    Publication date: September 28, 2006
    Inventors: Lorenza Moro, Xi Chu, Martin Rosenblum, Kenneth Nelson, Paul Burrows, Mark Gross, Mac Zumhoff, Peter Martin, Charles Bonham, Gordon Graff
  • Patent number: 7002294
    Abstract: The present invention is directed to an organic optoelectronic device, such as an OLED device, provided with a vacuum deposited conformal composite coating for protecting the device from environmental elements such as moisture and oxygen. The present invention is also directed to a method for vacuum depositing a conformal composite coating directly onto an organic optoelectronic device, such as an OLED device, on a substrate. According to one embodiment, the invention provides a protected OLED device comprising a substrate; an active region positioned on said substrate; a first protective layer disposed over the active region; and a second protective layer disposed over the first protective layer, wherein said second protective layer comprises multiple sub-layers that further comprise an alternating series of two or more first polymeric sub-layers and two or more first high density sub-layers.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: February 21, 2006
    Assignee: Universal Display Corporation
    Inventors: Stephen Forrest, Paul Burrows
  • Publication number: 20060029829
    Abstract: Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L2MX, wherein L and X are distinct bidentate ligands. Compounds of this formula can be synthesized more facilely than in previous approaches and synthetic options allow insertion of fluorescent molecules into a phosphorescent complex, ligands to fine tune the color of emission, and ligands to trap carriers.
    Type: Application
    Filed: September 22, 2005
    Publication date: February 9, 2006
    Inventors: Mark Thompson, Peter Djurovich, Sergey Lamansky, Drew Murphy, Raymond Kwong, Feras Abdel-Razzaq, Stephen Forrest, Marc Baldo, Paul Burrows
  • Publication number: 20050239294
    Abstract: A tool for depositing multilayer coatings onto a substrate. In one configuration, the tool includes a includes an in-line organic material deposition station operating under at least one of a pressure or temperature controlled environment. In another, it further is of a hybrid design that incorporates both in-line and cluster tool features. In this latter configuration, at least one of the deposition stations is configured to deposit an inorganic layer, while at least one other deposition station is configured to deposit an organic layer. The tool is particularly well-suited to depositing multilayer coatings onto discrete substrates, as well as to encapsulating environmentally-sensitive devices placed on the flexible substrate.
    Type: Application
    Filed: April 22, 2005
    Publication date: October 27, 2005
    Inventors: Martin Rosenblum, Xi Chu, Lorenza Moro, Kenneth Nelson, Paul Burrows, Mark Gross, Mac Zumhoff, Peter Martin, Charles Bonham, Gordon Graff
  • Publication number: 20050227004
    Abstract: A method and apparatus for forming patterned coatings of thin film, non-polymeric compounds on a substrate. A mixture of the non-polymeric compound and a liquid carrier is pumped into the interior of a heated evaporation box having an internal temperature sufficient to convert substantially all of the non-polymeric compound and liquid carrier to a gaseous form. The non-polymeric compound and liquid carrier are then removed from the evaporation box via exit slit in the evaporation box. Adjacent to the exit slit, and maintained in a vacuum, is a first substrate upon which the non-polymeric compound condenses. The first substrate is in motion, for example on a web roller, thereby allowing a continuous coating of the non-polymeric compound to be applied to the first substrate. Once the non-polymeric compound is applied to one side of the first substrate, an energy source is then directed toward the opposite side of the first substrate.
    Type: Application
    Filed: February 14, 2005
    Publication date: October 13, 2005
    Inventors: Paul Burrows, Linda Sapochak
  • Publication number: 20050214570
    Abstract: Organic light emitting devices are disclosed which are comprised of a heterostructure for producing electroluminescence wherein the heterostructure is comprised of an emissive layer containing a phosphorescent dopant compound.
    Type: Application
    Filed: February 18, 2005
    Publication date: September 29, 2005
    Inventors: Mark Thompson, Yujian You, Andrei Shoustikov, Scott Sibley, Paul Burrows, Stephen Forrest
  • Publication number: 20050202646
    Abstract: An edge-sealed, encapsulated environmentally sensitive device. The device includes at least one initial barrier stack, an environmentally sensitive device, and at least one additional barrier stack. The barrier stacks include at least one decoupling layer and at least one barrier layer. The environmentally sensitive device is sealed between the at least one initial barrier stack and the at least one additional barrier stack. A method of making the edge-sealed, encapsulated environmentally sensitive device is also disclosed.
    Type: Application
    Filed: April 22, 2005
    Publication date: September 15, 2005
    Inventors: Paul Burrows, Eric Mast, Peter Martin, Gordon Graff, Mark Gross
  • Publication number: 20050176181
    Abstract: An edge-sealed barrier film composite. The composite includes a substrate and at least one initial barrier stack adjacent to the substrate. The at least one initial barrier stack includes at least one decoupling layer and at least one barrier layer. One of the barrier layers has an area greater than the area of one of the decoupling layers. The decoupling layer is sealed by the first barrier layer within the area of barrier material. An edge-sealed, encapsulated environmentally sensitive device is provided. A method of making the edge-sealed barrier film composite is also provided.
    Type: Application
    Filed: February 28, 2005
    Publication date: August 11, 2005
    Inventors: Paul Burrows, J. Pagano, Eric Mast, Peter Martin, Gordon Graff, Mark Gross
  • Publication number: 20050158584
    Abstract: Organic light emitting devices are Disclosed which are comprised of a heterostructure for producing electroluminescence wherein the heterostructure is comprised of an emissive layer containing a phosphorescent dopant compound.
    Type: Application
    Filed: February 18, 2005
    Publication date: July 21, 2005
    Inventors: Mark Thompson, Yujian You, Andrei Shoustikov, Scott Sibley, Paul Burrows, Stephen Forrest
  • Patent number: 6888306
    Abstract: An organic light emitting device (OLED) is disclosed for which the hole transporting layer, the electron transporting layer and/or the emissive layer, if separately present, is comprised of a non-polymeric material. A method for preparing such OLED's using vacuum deposition techniques is further disclosed.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: May 3, 2005
    Assignee: The Trustees of Princeton University
    Inventors: Gong Gu, Paul Burrows, Stephen R. Forrest
  • Publication number: 20050079279
    Abstract: An organic light emitting device (OLED) is disclosed for which the hole transporting layer, the electron transporting layer and/or the emissive layer, if separately present, is comprised of a non-polymeric material. A method for preparing such OLED's using vacuum deposition techniques is further disclosed.
    Type: Application
    Filed: October 15, 2004
    Publication date: April 14, 2005
    Inventors: Gong Gu, Paul Burrows, Stephen Forrest
  • Publication number: 20050079278
    Abstract: A method for coating a thin film of a non-polymeric compound on a substrate by providing a mixture of the non-polymeric compound and a fluid carrier. This mixture is then pumped into the interior of a heated evaporation box having an internal temperature sufficient to convert substantially all of the non-polymeric compound and fluid carrier to a gaseous form. The non-polymeric compound and fluid carrier are then removed from the evaporation box via exit slit in the evaporation box. Adjacent to the exit slit, and maintained in a vacuum, is a substrate upon which the non-polymeric compound condenses. The substrate is in motion, for example on a web roller, thereby allowing a continuous coating of the non-polymeric compound to be applied to the substrate.
    Type: Application
    Filed: October 14, 2003
    Publication date: April 14, 2005
    Inventors: Paul Burrows, Gordon Graff, Linda Sapochak, Michael Hall
  • Publication number: 20050008897
    Abstract: Organic light emitting devices are disclosed which are comprised of a heterostructure for producing electroluminescence wherein the heterostructure is comprised of an emissive layer containing a phosphorescent dopant compound.
    Type: Application
    Filed: August 6, 2004
    Publication date: January 13, 2005
    Inventors: Mark Thompson, Yujian You, Andrei Shoustikov, Scott Sibley, Paul Burrows, Stephen Forrest
  • Publication number: 20040242116
    Abstract: The present invention is directed to an organic optoelectronic device, such as an OLED device, provided with a vacuum deposited conformal composite coating for protecting the device from environmental elements such as moisture and oxygen. The present invention is also directed to a method for vacuum depositing a conformal composite coating directly onto an organic optoelectronic device, such as an OLED device, on a substrate. According to one embodiment, the invention provides a protected OLED device comprising a substrate; an active region positioned on said substrate; a first protective layer disposed over the active region; and a second protective layer disposed over the first protective layer, wherein said second protective layer comprises multiple sub-layers that further comprise an alternating series of two or more first polymeric sub-layers and two or more first high density sub-layers.
    Type: Application
    Filed: June 8, 2004
    Publication date: December 2, 2004
    Inventors: Stephen Forrest, Paul Burrows
  • Patent number: 6765351
    Abstract: The present invention is directed to an organic optoelectronic device, such as an OLED device, provided with a vacuum deposited conformal composite coating for protecting the device from environmental elements such as moisture and oxygen. The present invention is also directed to a method for vacuum depositing a conformal composite coating directly onto an organic optoelectronic device, such as an OLED device, on a substrate. According to one embodiment, the invention provides a protected OLED device comprising a substrate; an active region positioned on said substrate; a first protective layer disposed over the active region; and a second protective layer disposed over the first protective layer, wherein said second protective layer comprises multiple sub-layers that further comprise an alternating series of two or more first polymeric sub-layers and two or more first high density sub-layers.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: July 20, 2004
    Assignee: The Trustees of Princeton University
    Inventors: Stephen Forrest, Paul Burrows
  • Publication number: 20040027065
    Abstract: An organic light emitting device (OLED) is disclosed for which the hole transporting layer, the electron transporting layer and/or the emissive layer, if separately present, is comprised of a non-polymeric material. A method for preparing such OLED's using vacuum deposition techniques is further disclosed.
    Type: Application
    Filed: May 14, 2003
    Publication date: February 12, 2004
    Inventors: Gong Gu, Paul Burrows, Stephen R. Forrest
  • Patent number: 6650045
    Abstract: A multicolor organic light emitting display device employs angle-walled blue, green and red emitting mesas, with optional metal reflectors on the angled walls, in a plurality of pixels. The angle-walled mesas, which resemble truncated pyramids, direct light out of the mesa by reflection from the mesa side walls or by mirror reflection. The device of the present invention reduces waveguiding, thus simultaneously increasing both display brightness and resolution.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: November 18, 2003
    Assignee: The Trustees of Princeton University
    Inventors: Stephen R. Forrest, Paul Burrows, Dmitri Z. Garbuzov
  • Patent number: 6602540
    Abstract: An organic light emitting device (OLED) is disclosed for which the hole transporting layer, the electron transporting layer and/or the emissive layer, if separately present, is comprised of a non-polymeric material. A method for preparing such OLED's using vacuum deposition techniques is further disclosed.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: August 5, 2003
    Assignee: The Trustees of Princeton University
    Inventors: Gong Gu, Paul Burrows, Stephen R. Forrest
  • Publication number: 20030117068
    Abstract: The present invention is directed to an organic optoelectronic device, such as an OLED device, provided with a vacuum deposited conformal composite coating for protecting the device from environmental elements such as moisture and oxygen. The present invention is also directed to a method for vacuum depositing a conformal composite coating directly onto an organic optoelectronic device, such as an OLED device, on a substrate. According to one embodiment, the invention provides a protected OLED device comprising a substrate; an active region positioned on said substrate; a first protective layer disposed over the active region; and a second protective layer disposed over the first protective layer, wherein said second protective layer comprises multiple sub-layers that further comprise an alternating series of two or more first polymeric sub-layers and two or more first high density sub-layers.
    Type: Application
    Filed: December 20, 2001
    Publication date: June 26, 2003
    Inventors: Stephen Forrest, Paul Burrows