Patents by Inventor Michael S. Weaver

Michael S. Weaver 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: 20110227049
    Abstract: Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl.
    Type: Application
    Filed: September 3, 2009
    Publication date: September 22, 2011
    Applicant: Universal Display Corporation
    Inventors: Chuanjun Xia, Bert Alleyne, Raymond C. Kwong, James Fiordeliso, Jason Brooks, Vadim Adamovich, Michael S. Weaver
  • Publication number: 20100244725
    Abstract: An organic light emitting device comprising, an anode, a cathode, and an emissive layer, located between the anode and the cathode, of a host compound, a first compound capable of phosphorescent emission at room temperature, and a second compound capable of phosphorescent emission at room temperature is provided. At least 95 percent of emission from the device is produced from the second compound when an appropriate voltage is applied across the anode and cathode.
    Type: Application
    Filed: April 19, 2007
    Publication date: September 30, 2010
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Vadim Adamovich, Michael S. Weaver, Min-Hao Michael Lu
  • Publication number: 20100244069
    Abstract: A device is provided. The device includes first, second and third subpixels. The first sub-pixel includes an emissive layer having a first emitting material but not a second emitting material. The second sub-pixel includes an emissive layer having the second emitting material but not the first emitting material. The third sub-pixel includes an emissive layer having both the first and second emitting materials. A method of fabricating the device is provided. For a three subpixel device, a first electrode layer is deposited, having a first sub-pixel and a second sub-pixel. Then, in a first patterned deposition process, a first emitting material is deposited on the first sub-pixel and the third sub-pixel, but not the second sub-pixel. Then, in a second patterned deposition process, a second emitting material is deposited on the second sub-pixel and the third sub-pixel, but not the first sub-pixel. Then, a second electrode layer is deposited.
    Type: Application
    Filed: December 16, 2009
    Publication date: September 30, 2010
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventor: Michael S. WEAVER
  • Publication number: 20100225252
    Abstract: A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light.
    Type: Application
    Filed: April 1, 2010
    Publication date: September 9, 2010
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Michael S. Weaver, Julie J. Brown, Peter Levermore, Woo-Young So, Michael Hack
  • Publication number: 20100090620
    Abstract: A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light.
    Type: Application
    Filed: September 23, 2009
    Publication date: April 15, 2010
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Michael HACK, Julia J. BROWN, Michael S. WEAVER, Brian D'ANDRADE
  • Publication number: 20100090241
    Abstract: An organic light emitting device is provided. The device includes an anode, a cathode, and an organic emissive stack disposed between the anode and the cathode. The device may be a “pixel” in a display, capable of emitting a wide variety of colors through the use of independently addressable “sub-pixels,” each subpixel emitting a different spectrum of light. In the most general sense, the device includes a first subpixel and a second subpixel, and at least one of the anode and the cathode has independently addressable first and second regions corresponding to the first and second subpixels. The device includes an emissive stack disposed between the anode and the cathode. The emissive stack includes a first organic emissive layer and a second organic emissive layer. The first organic emissive layer is disposed between the anode and the cathode, and extends throughout the first and second regions.
    Type: Application
    Filed: October 12, 2009
    Publication date: April 15, 2010
    Applicant: Universal Display Corporation
    Inventors: Brian D'Andrade, Michael S. Weaver, Julia J. Brown
  • Patent number: 7663300
    Abstract: An organic light emitting device is provided. The device has a plurality of regions, each region having an organic emissive layer adapted to emit a different spectrum of light. The regions in combination emit light suitable for illumination purposes. The area of each region may be selected such that the device is more efficient that an otherwise equivalent device having regions of equal size. The regions may have an aspect ratio of at least about four. All parts of any given region may be driven at the same current.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: February 16, 2010
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Min-Hao Michael Lu, Michael S. Weaver
  • Publication number: 20090121624
    Abstract: Novel combination of materials and device architectures for organic light emitting devices are provided. In some aspects, specific charge carriers and solid state considerations are features that may result in a device having an unexpectedly long lifetime. In some aspects, emitter purity is a feature that may result in devices having unexpectedly long lifetime. In some aspects, structural and optical considerations are features that may result in a device having an unexpectedly long lifetime. In some aspects, an emissive layer including an organic phosphorescent emissive dopant and an organic carbazole host material results in devices having an unexpectedly long lifetime.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 14, 2009
    Applicant: Universal Display Corporation
    Inventors: Brian D'Andrade, Peter B. MacKenzie, Michael S. Weaver, Julia J. Brown
  • Patent number: 7087321
    Abstract: The present invention relates to organic light emitting devices (OLEDs), and more specifically to efficient OLEDs comprising an array of pixels and having reduced pixel shrinkage. The devices of the present invention comprise further relates to materials for use as emissive materials which give reduced shrinkage when incorporated into an OLED.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: August 8, 2006
    Assignee: Universal Display Corporation
    Inventors: Raymond Kwong, Michael S. Weaver, Bin Ma, Jui-Yi Tsai, Michael Barone, David B. Knowles
  • Patent number: 7071615
    Abstract: A cathode adapted for use in an organic optoelectronic device is provided. The cathode has an electron injection layer, an organic buffer layer, a conducting layer, and a transparent conductive oxide layer disposed, in that order, over the organic operative layers of the optoelectronic device. A method of fabricating the cathode is also provided.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: July 4, 2006
    Assignee: Universal Display Corporation
    Inventors: Min-Hao Michael Lu, Michael S. Weaver
  • Patent number: 7061175
    Abstract: An organic light emitting device is provided. The device includes an anode, an organic layer disposed over the anode, a layer comprising an alkaline metal compound disposed over the organic layer, a layer comprising Mg or a Mg-metal alloy disposed over the layer comprising an alkaline metal compound, and a layer comprising a transparent conductive metal oxide disposed over the layer comprising Mg or Mg-metal alloy. A method of fabricating an organic light emitting device is also provided. An organic layer is deposited over an anode. An electron injection enhancement layer consisting essentially of an alkaline metal compound is deposited over the organic layer. A transparent cathode, including a layer of Mg or Mg-metal alloy and a layer of metal oxide, is deposited over the layer of alkaline metal compound. A device fabricated by this process is also provided.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: June 13, 2006
    Assignee: Universal Display Corporation
    Inventors: Michael S. Weaver, Min-Hao Michael Lu, Theodore Zhou
  • Patent number: 7049636
    Abstract: A device and corresponding method are provided. The device includes an n-type transistor fabricated over a substrate, the n-type transistor having a gate and two current-carrying electrodes. The device also includes a non-inverted organic light emitting device fabricated over the substrate, the non-inverted organic light emitting device having an anode and a cathode. The cathode is connected to one of the current-carrying electrodes of the n-type transistor.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: May 23, 2006
    Assignee: Universal Display Corporation
    Inventors: Michael S. Weaver, Michael Hack, Min-Hao Michael Lu
  • Patent number: 7029765
    Abstract: The present invention relates to organic light emitting devices (OLEDs), and more specifically to efficient OLEDs comprising an array of pixels and having reduced pixel shrinkage. The devices of the present invention comprise further relates to materials for use as emissive materials which give reduced shrinkage when incorporated into an OLED.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: April 18, 2006
    Assignee: Universal Display Corporation
    Inventors: Raymond Kwong, Michael S. Weaver, Bin Ma, Jui-Yi Tsai, Michael Barone, David B. Knowles
  • Publication number: 20040241495
    Abstract: The present invention relates to organic light emitting devices (OLEDs), and more specifically to efficient OLEDs comprising an array of pixels and having reduced pixel shrinkage. The devices of the present invention comprise further relates to materials for use as emissive materials which give reduced shrinkage when incorporated into an OLED.
    Type: Application
    Filed: April 21, 2004
    Publication date: December 2, 2004
    Inventors: Raymond Kwong, Michael S. Weaver, Bin Ma, Jui-Yi Tsai, Michael Barone, David B. Knowles
  • Publication number: 20040214038
    Abstract: The present invention relates to organic light emitting devices (OLEDs), and more specifically to efficient OLEDs comprising an array of pixels and having reduced pixel shrinkage. The devices of the present invention comprise further relates to materials for use as emissive materials which give reduced shrinkage when incorporated into an OLED.
    Type: Application
    Filed: April 22, 2003
    Publication date: October 28, 2004
    Inventors: Raymond Kwong, Michael S. Weaver, Bin Ma, Jui-Yi Tsai, Michael Barone, David B. Knowles
  • Publication number: 20040174116
    Abstract: A cathode adapted for use in an organic optoelectronic device is provided. The cathode has an electron injection layer, an organic buffer layer, a conducting layer, and a transparent conductive oxide layer disposed, in that order, over the organic operative layers of the optoelectronic device. A method of fabricating the cathode is also provided.
    Type: Application
    Filed: August 20, 2001
    Publication date: September 9, 2004
    Inventors: Min-Hao Michael Lu, Michael S. Weaver
  • Publication number: 20040079945
    Abstract: A device and corresponding method are provided. The device includes an n-type transistor fabricated over a substrate, the n-type transistor having a gate and two current-carrying electrodes. The device also includes a non-inverted organic light emitting device fabricated over the substrate, the non-inverted organic light emitting device having an anode and a cathode. The cathode is connected to one of the current-carrying electrodes of the n-type transistor.
    Type: Application
    Filed: October 28, 2002
    Publication date: April 29, 2004
    Inventors: Michael S. Weaver, Michael Hack, Min-Hao Michael Lu
  • Publication number: 20040032205
    Abstract: An organic light emitting device is provided. The device has a plurality of regions, each region having an organic emissive layer adapted to emit a different spectrum of light. The regions in combination emit light suitable for illumination purposes. The area of each region may be selected such that the device is more efficient that an otherwise equivalent device having regions of equal size. The regions may have an aspect ratio of at least about four. All parts of any given region may be driven at the same current.
    Type: Application
    Filed: August 16, 2002
    Publication date: February 19, 2004
    Inventors: Michael Hack, Min-Hao Michael Lu, Michael S. Weaver
  • Publication number: 20040032206
    Abstract: An organic light emitting device is provided. The device includes an anode, an organic layer disposed over the anode, a layer comprising an alkaline metal compound disposed over the organic layer, a layer comprising Mg or a Mg-metal alloy disposed over the layer comprising an alkaline metal compound, and a layer comprising a transparent conductive metal oxide disposed over the layer comprising Mg or Mg-metal alloy. A method of fabricating an organic light emitting device is also provided. An organic layer is deposited over an anode. An electron injection enhancement layer consisting essentially of an alkaline metal compound is deposited over the organic layer. A transparent cathode, including a layer of Mg or Mg-metal alloy and a layer of metal oxide, is deposited over the layer of alkaline metal compound. A device fabricated by this process is also provided.
    Type: Application
    Filed: August 16, 2002
    Publication date: February 19, 2004
    Inventors: Michael S. Weaver, Min-Hao Michael Lu, Theodore Zhou
  • Patent number: 6664730
    Abstract: An array of OLEDs is provided. The array includes a first electrode that has a plurality of physically separate pieces that are electrically connected by a bus line. The array further includes a second electrode, and an organic layer disposed between the first and second electrodes. The organic layer is electrically connected to the second electrode, and to at least one of the physically separate pieces of the first electrode. The embodiment may be used to fabricate an array of OLEDs on a flexible substrate.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: December 16, 2003
    Assignee: Universal Display Corporation
    Inventor: Michael S. Weaver