Patents by Inventor David Robin Lovell

David Robin Lovell 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).

  • Method of forming a patterned phosphor structure for an electroluminescent laminate
    Patent number: 6939189
    Abstract: The invention provides a method of forming a patterned phosphor structure having red, green and blue sub-pixel elements for an AC electroluminescent display. The method involves selecting first and second phosphors, each emitting light in different ranges of the visible spectrum, but whose combined emission spectra contains red, green and blue light; depositing and patterning the phosphors in a layer to form a plurality of repeating phosphor deposits; and providing means associated with the phosphor deposits, and which together with the phosphor deposits form the red, green and blue sub-pixel phosphor elements, for setting and equalizing the threshold voltages, and for setting the relative luminosities of the red, green and blue sub-pixel phosphor elements so that they bear set ratios to one another at each modulation voltage used to generate the desired luminosities for red, green and blue; and optionally annealing the patterned phosphor structure so formed.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: September 6, 2005
    Assignee: Ifire Technology Corp.
    Inventors: Xingwei Wu, Daniel Joseph Seale, Donald Edward Carkner, Michael Roger Westcott, David Robin Lovell
  • Electroluminescent laminate with patterned phosphor structure and thick film dielectric with improved dielectric properties
    Patent number: 6771019
    Abstract: A patterned phosphor structure and EL laminate containing same, forming red, green and blue sub-pixel phosphor elements for an AC electroluminescent display. The patterned phosphor structure includes at least a first and a second phosphor emitting light in different ranges of the visible spectrum, but with combined emission spectra contains red, green and blue light, the first and second phosphors being in a layer, arranged in adjacent, repeating relationship to each other to provide a plurality of repeating first and second phosphor deposits.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: August 3, 2004
    Assignee: Ifire Technology, Inc.
    Inventors: Xingwei Wu, Daniel Joseph Seale, Guo Liu, Donald Edward Carkner, Daniel Doxsee, George A. Kupsky, Michael Roger Westcott, David Robin Lovell
  • Method of forming a patterned phosphor structure for an electroluminescent laminate
    Publication number: 20040033752
    Abstract: A patterned phosphor structure, and EL laminate containing same, forming red, green and blue sub-pixel phosphor elements for an AC electroluminescent display. The patterned phosphor structure includes at least a first and a second phosphor emitting light in different ranges of the visible spectrum, but with combined emission spectra contains red, green and blue light, the first and second phosphors being in a layer, arranged in adjacent, repeating relationship to each other to provide a plurality of repeating first and second phosphor deposits.
    Type: Application
    Filed: August 14, 2003
    Publication date: February 19, 2004
    Applicant: IFIRE TECHNOLOGY, INC.
    Inventors: Xingwei Wu, Daniel Joseph Seale, Donald Edward Carkner, Michael Roger Westcott, David Robin Lovell