Patents by Inventor Yiru Sun

Yiru Sun 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).

  • OLED with improved light outcoupling
    Patent number: 9508957
    Abstract: An OLED may include regions of a material having a refractive index less than that of the substrate, or of the organic region, allowing for emitted light in a waveguide mode to be extracted into air. These regions can be placed adjacent to the emissive regions of an OLED in a direction parallel to the electrodes. The substrate may also be given a nonstandard shape to further improve the conversion of waveguide mode and/or glass mode light to air mode. The outcoupling efficiency of such a device may be up to two to three times the efficiency of a standard OLED. Methods for fabricating such a transparent or top-emitting OLED is also provided.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: November 29, 2016
    Assignee: The Regents of the University of Michigan
    Inventors: Stephen Forrest, Yiru Sun
  • Near infrared emitting organic compounds and organic devices using the same
    Patent number: 7989090
    Abstract: Certain iridium compounds which may comprise an iridium(III)-ligand complex having the general formula: (C^N)2—Ir—(N^N). (C^N) and (N^N) may each represent a ligand coordinated to an iridium atom. The iridium compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-infrared (IR) range. Also, organic devices that use certain iridium compounds. The organic device may comprise an organic layer and the organic layer may comprise any of the iridium compounds disclosed herein. Also, organic devices that use certain metalloporphyrin compounds. The metalloporphyrin compounds may comprise a core porphyrin structure with four pyrrole rings. The metalloporphyrin compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-IR range.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: August 2, 2011
    Assignees: The Trustees of Princeton University, The University of Southern California, The Regents of the University of Michigan
    Inventors: Mark E. Thompson, Carsten Borek, Kenneth Hanson, Peter Djurovich, Yiru Sun, Stephen Forrest, Arnold Tamayo
  • Fluorescent filtered electrophosphorescence
    Patent number: 7768194
    Abstract: The present invention relates to organic light emitting devices (OLEDs), and more specifically to OLEDS that emit light using a combination of fluorescent emitters and phosphorescent emitters for the efficient utilization of all of the electrically generated excitons.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: August 3, 2010
    Assignees: The Trustees of Princeton University, The University of Southern California
    Inventors: Stephen Forrest, Yiru Sun, Noel Giebink, Mark E. Thompson
  • OLED WITH IMPROVED LIGHT OUTCOUPLING
    Publication number: 20100181899
    Abstract: An OLED may include regions of a material having a refractive index less than that of the substrate, or of the organic region, allowing for emitted light in a waveguide mode to be extracted into air. These regions can be placed adjacent to the emissive regions of an OLED in a direction parallel to the electrodes. The substrate may also be given a nonstandard shape to further improve the conversion of waveguide mode and/or glass mode light to air mode. The outcoupling efficiency of such a device may be up to two to three times the efficiency of a standard OLED. Methods for fabricating such a transparent or top-emitting OLED is also provided.
    Type: Application
    Filed: March 31, 2008
    Publication date: July 22, 2010
    Inventors: Stephen Forrest, Yiru Sun
  • NEAR INFRARED EMITTING ORGANIC COMPOUNDS AND ORGANIC DEVICES USING THE SAME
    Publication number: 20100013386
    Abstract: Certain iridium compounds which may comprise an iridium(III)-ligand complex having the general formula: (C?N)2—Ir—(N?N). (C?N) and (N?N) may each represent a ligand coordinated to an iridium atom. The iridium compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-infrared (IR) range. Also, organic devices that use certain iridium compounds. The organic device may comprise an organic layer and the organic layer may comprise any of the iridium compounds disclosed herein. Also, organic devices that use certain metalloporphyrin compounds. The metalloporphyrin compounds may comprise a core porphyrin structure with four pyrrole rings. The metalloporphyrin compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-IR range.
    Type: Application
    Filed: August 25, 2009
    Publication date: January 21, 2010
    Inventors: Mark E. THOMPSON, Carsten Borek, Kenneth Hanson, Peter Djurovich, Yiru Sun, Stephen Forrest, Arnold Tamayo
  • Near-infrared emitting organic compounds and organic devices using the same
    Patent number: 7598381
    Abstract: Certain iridium compounds which may comprise an iridium(III)-ligand complex having the general formula: (C^N)2—Ir—(N^N). (C^N) and (N^N) may each represent a ligand coordinated to an iridium atom. The iridium compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-infrared (IR) range. Also, organic devices that use certain iridium compounds. The organic device may comprise an organic layer and the organic layer may comprise any of the iridium compounds disclosed herein. Also, organic devices that use certain metalloporphyrin compounds. The metalloporphyrin compounds may comprise a core porphyrin structure with four pyrrole rings. The metalloporphyrin compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-IR range.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: October 6, 2009
    Assignees: The Trustees of Princeton University, The University of Southern California, The Regents of the University of Michigan
    Inventors: Mark E. Thompson, Carsten Borek, Kenneth Hanson, Peter Djurovich, Yiru Sun, Stephen Forrest, Arnold Tamayo
  • Fluorescent filtered electrophosphorescence
    Patent number: 7474048
    Abstract: The present invention relates to organic light emitting devices (OLEDs), and more specifically to OLEDS that emit light using a combination of fluorescent emitters and phosphorescent emitters for the efficient utilization of all of the electrically generated excitons.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: January 6, 2009
    Assignees: The Trustees of Princeton University, The University of Southern California
    Inventors: Stephen R. Forrest, Yiru Sun, Noel Giebink, Mark E. Thompson
  • Low Index Grids (LIG) To Increase Outcoupled Light From Top or Transparent OLED
    Publication number: 20080265757
    Abstract: A transparent or top-emitting OLED may include regions of a material having a refractive index less than that of the organic region, allowing for emitted light in a waveguide mode to be extracted into air. These regions may be placed adjacent to the emissive regions of an OLED in a direction parallel to the electrodes. The substrate may also be given a nonstandard shape to further improve the conversion of waveguide mode and/or glass mode light to air mode. The outcoupling efficiency of such a device may be up to two to three times the efficiency of a standard OLED. A method for fabricating such a transparent or top-emitting OLED is also provided.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 30, 2008
    Inventors: Stephen Forrest, Yiru Sun
  • OLED with improved light outcoupling
    Publication number: 20080238310
    Abstract: An OLED may include regions of a mineral having a refractive index less than that of the substrate, allowing for emitted light in a waveguide mode to be extracted into air. These regions can be placed adjacent to the emissive regions of an OLED in a direction parallel to the electrodes. The substrate may also be given a nonstandard shape to further improve the conversion of waveguide mode and/or glass mode light to air mode. The outcoupling efficiency of such a device may be up to two to three times the efficiency of a standard OLED.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Inventors: Stephen R. Forrest, Yiru Sun
  • Near-infrared emitting organic compounds and organic devices using the same
    Publication number: 20080061681
    Abstract: Certain iridium compounds which may comprise an iridium(III)-ligand complex having the general formula: (C?N)2—Ir—(N?N). (C?N) and (N?N) may each represent a ligand coordinated to an iridium atom. The iridium compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-infrared (IR) range. Also, organic devices that use certain iridium compounds. The organic device may comprise an organic layer and the organic layer may comprise any of the iridium compounds disclosed herein. Also, organic devices that use certain metalloporphyrin compounds. The metalloporphyrin compounds may comprise a core porphyrin structure with four pyrrole rings. The metalloporphyrin compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-IR range.
    Type: Application
    Filed: September 11, 2006
    Publication date: March 13, 2008
    Applicants: The Trustees of Princeton University, The Regents of the University of Michigan, The University of Southern California
    Inventors: Mark E. Thompson, Carsten Borek, Kenneth Hanson, Peter Djurovich, Yiru Sun, Stephen Forrest
  • Fluorescent filtered electrophosphorescence
    Publication number: 20060279203
    Abstract: The present invention relates to organic light emitting devices (OLEDs), and more specifically to OLEDS that emit light using a combination of fluorescent emitters and phosphorescent emitters for the efficient utilization of all of the electrically generated excitons.
    Type: Application
    Filed: June 1, 2006
    Publication date: December 14, 2006
    Inventors: Stephen Forrest, Yiru Sun, Noel Giebink, Mark Thompson
  • Fluorescent filtered electrophosphorescence
    Publication number: 20060273714
    Abstract: The present invention relates to organic light emitting devices (OLEDs), and more specifically to OLEDS that emit light using a combination of fluorescent emitters and phosphorescent emitters for the efficient utilization of all of the electrically generated excitons.
    Type: Application
    Filed: June 1, 2005
    Publication date: December 7, 2006
    Inventors: Stephen Forrest, Yiru Sun, Noel Giebink, Mark Thompson