Patents by Inventor Lisa C. Picciolo

Lisa C. Picciolo 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).

  • Universal host for RG or RGB emission in organic light emitting devices
    Patent number: 7221088
    Abstract: The present invention describes the use of red, green and, if necessary, blue dopants dispersed in a universal host material as the active emitting layer in OLEDs. The universal host is transparent in the visible region, and may be emissive in the blue region when used as the blue emitting species or possesses carrier transport properties. By dispersing the dopants in the universal host, efficient energy transfer from host to guest and/or direct carrier recombination on the dopant takes place resulting in bright red, green or blue emission, depending on the dopant. The resulting spectra are characteristic of the guest molecules.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: May 22, 2007
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Zakya H. Kafafi, Lisa C. Picciolo, Hideyuki Murata
  • RGB patterning of organic light-emitting devices using photo-bleachable emitters dispersed in a common host
    Publication number: 20030186078
    Abstract: The present invention provides a method for fabricating an electroluminescent EL display, wherein the individual color pixels are formed by doping a common blue-emitting host with two or more photo-bleachable (or photo-oxidizable) dopants, such as red and green emitting organic materials. The host may also be doped with a blue emitting material that is not photo-bleachable.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 2, 2003
    Inventors: Hideyuki Murata, Lisa C. Picciolo, Zakya H. Kafafi
  • Universal host for RG or RGB emission in organic light emitting devices
    Publication number: 20020067124
    Abstract: The present invention describes the use of red, green and, if necessary, blue dopants dispersed in a universal host material as the active emitting layer in OLEDs. The universal host is transparent in the visible region, and may be emissive in the blue region when used as the blue emitting species or possesses carrier transport properties. By dispersing the dopants in the universal host, efficient energy transfer from host to guest and/or direct carrier recombination on the dopant takes place resulting in bright red, green or blue emission, depending on the dopant. The resulting spectra are characteristic of the guest molecules.
    Type: Application
    Filed: November 29, 2001
    Publication date: June 6, 2002
    Inventors: Zakya H. Kafafi, Lisa C. Picciolo, Hideyuki Murata