Patents by Inventor Caroline J. Roush

Caroline J. Roush 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).

  • Patent number: 10770619
    Abstract: Light-emitting devices and displays with improved performance are disclosed. A light-emitting device includes a first electrode including an anode opposite a second electrode including a cathode, a hole injection layer adjacent the first electrode, a hole transporting layer disposed on the hole injection layer, and an emissive layer of inorganic semiconductor nanocrystals disposed between the hole transporting layer and the second electrode. The inorganic semiconductor nanocrystals comprising a plurality of semiconductor nanocrystals capable of emitting light upon excitation.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: September 8, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seth Coe-Sullivan, Marshall Cox, Caroline J. Roush, Jonathan S. Steckel
  • Publication number: 20190280153
    Abstract: Light-emitting devices and displays with improved performance are disclosed. A light-emitting device includes a first electrode including an anode opposite a second electrode including a cathode, a hole injection layer adjacent the first electrode, a hole transporting layer disposed on the hole injection layer, and an emissive layer of inorganic semiconductor nanocrystals disposed between the hole transporting layer and the second electrode. The inorganic semiconductor nanocrystals comprising a plurality of semiconductor nanocrystals capable of emitting light upon excitation.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 12, 2019
    Inventors: SETH COE-SULLIVAN, MARSHALL COX, CAROLINE J. ROUSH, JONATHAN S. STECKEL
  • Patent number: 10297713
    Abstract: Light-emitting devices and displays with improved performance are disclosed. A light-emitting device includes a first electrode including an anode opposite a second electrode including a cathode, a hole injection layer adjacent the first electrode, a hole transporting layer disposed on the hole injection layer, and an emissive layer of inorganic semiconductor nanocrystals disposed between the hole transporting layer and the second electrode. The inorganic semiconductor nanocrystals comprising a plurality of semiconductor nanocrystals capable of emitting light upon excitation.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: May 21, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seth Coe-Sullivan, Marshall Cox, Caroline J. Roush, Jonathan S. Steckel
  • Publication number: 20180138360
    Abstract: Light-emitting devices and displays with improved performance are disclosed. A light-emitting device includes a first electrode including an anode opposite a second electrode including a cathode, a hole injection layer adjacent the first electrode, a hole transporting layer disposed on the hole injection layer, and an emissive layer of inorganic semiconductor nanocrystals disposed between the hole transporting layer and the second electrode. The inorganic semiconductor nanocrystals comprising a plurality of semiconductor nanocrystals capable of emitting light upon excitation.
    Type: Application
    Filed: December 22, 2017
    Publication date: May 17, 2018
    Inventors: SETH COE-SULLIVAN, MARSHALL COX, CAROLINE J. ROUSH, JONATHAN S. STECKEL
  • Patent number: 9853184
    Abstract: Light-emitting devices and displays with improved performance are disclosed. A light-emitting device includes an emissive material disposed between a first electrode, and a second electrode. Various embodiments include a device having a peak external quantum efficiency of at least about 2.2%; a device that emits light having a CIE color coordinate of x greater than 0.63; a device having an external quantum efficiency of at least about 2.2 percent when measured at a current density of 5 mA/cm2. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting red light upon excitation, wherein the device has a peak luminescent efficiency of at least about 1.5 lumens per watt. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting red light upon excitation, wherein the device has a luminescent efficiency of at least about 1.
    Type: Grant
    Filed: June 7, 2015
    Date of Patent: December 26, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seth Coe-Sullivan, Marshall Cox, Caroline J. Roush, Jonathan S. Steckel
  • Publication number: 20160027960
    Abstract: Light-emitting devices and displays with improved performance are disclosed. A light-emitting device includes an emissive material disposed between a first electrode, and a second electrode. Various embodiments include a device having a peak external quantum efficiency of at least about 2.2%; a device that emits light having a CIE color coordinate of x greater than 0.63; a device having an external quantum efficiency of at least about 2.2 percent when measured at a current density of 5 mA/cm2. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting red light upon excitation, wherein the device has a peak luminescent efficiency of at least about 1.5 lumens per watt. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting red light upon excitation, wherein the device has a luminescent efficiency of at least about 1.
    Type: Application
    Filed: June 7, 2015
    Publication date: January 28, 2016
    Inventors: SETH COE-SULLIVAN, MARSHALL COX, CAROLINE J. ROUSH, JONATHAN S. STECKEL
  • Patent number: 9054329
    Abstract: Light-emitting devices and displays with improved performance are disclosed. A light-emitting device includes an emissive material disposed between a first electrode, and a second electrode. Various embodiments include a device having a peak external quantum efficiency of at least about 2.2%; a device that emits light having a CIE color coordinate of x greater than 0.63; a device having an external quantum efficiency of at least about 2.2 percent when measured at a current density of 5 mA/cm2. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting red light upon excitation, wherein the device has a peak luminescent efficiency of at least about 1.5 lumens per watt. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting red light upon excitation, wherein the device has a luminescent efficiency of at least about 1.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: June 9, 2015
    Assignee: QD VISION, INC.
    Inventors: Seth Coe-Sullivan, Dorai Ramprasad, Ioannis Kymissis, Vladimir Bulovic, Marshall Cox, Caroline J. Roush, Peter T. Kazlas, Jonathan S. Steckel
  • Publication number: 20100051901
    Abstract: Light emitting devices and devices with improved performance are disclosed. In one embodiment, a light emitting device includes an emissive material disposed between a first electrode, and a second electrode, wherein the emissive material comprises semiconductor nanocrystals capable of emitting light including a maximum peak emission in the blue region of the spectrum upon excitation, wherein the light emitting device can have a peak external quantum efficiency of at least about 1.0 percent. Also disclosed is a display including at least one light emitting device including an emissive material disposed between a first electrode, and a second electrode, wherein the at least one light emitting device can have a peak external quantum efficiency of at least about 1.0 percent. In another embodiment, a light emitting device includes an emissive material disposed between a first electrode and a second electrode.
    Type: Application
    Filed: May 21, 2009
    Publication date: March 4, 2010
    Inventors: Peter T. Kazlas, Marshall Cox, Seth Coe-Sullivan, Dorai Ramprasad, Jonathan S. Steckel, Craig Breen, Caroline J. Roush, Mead Misic
  • Publication number: 20090278141
    Abstract: Light-emitting devices and displays with improved performance are disclosed. A light-emitting device includes an emissive material disposed between a first electrode, and a second electrode. Various embodiments include a device having a peak external quantum efficiency of at least about 2.2%; a device that emits light having a CIE color coordinate of x greater than 0.63; a device having an external quantum efficiency of at least about 2.2 percent when measured at a current density of 5 mA/cm2. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting red light upon excitation, wherein the device has a peak luminescent efficiency of at least about 1.5 lumens per watt. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting red light upon excitation, wherein the device has a luminescent efficiency of at least about 1.
    Type: Application
    Filed: November 24, 2008
    Publication date: November 12, 2009
    Inventors: Seth Coe-Sullivan, Dorai Ramprasad, Ioannis Kymissis, Vladimir Bulovic, Marshall Cox, Caroline J. Roush, Peter T. Kazlas, Jonathan S. Steckel