Patents by Inventor Roger Carroll

Roger Carroll 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).

  • Low resistance, thermally stable electrode structure for electroluminescent displays
    Patent number: 5559399
    Abstract: An electroluminescent display includes a transparent electrode (4) and a metal assist structure (6) formed over a portion of the transparent electrode (6) such that the metal assist structure (6) is in electrical contact with the transparent electrode (4). The metal assist structure (6) includes a first refractory metal layer (10), a primary conductor layer (12) formed on the first refractory metal layer (10), and a second refractory metal layer (14) formed on the primary conductor layer (12). The first and second refractory metal layers (10, 14) are capable of protecting the primary conductor layer (12) from oxidation when the electroluminescent display is annealed to activate a phosphor layer (18). In an alternate embodiment, an electroluminescent display includes a substrate (2) and a metal electrode (22) formed on the substrate (2).
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: September 24, 1996
    Assignee: Norden Systems, Inc.
    Inventors: William J. Tanski, Roger Carroll, Emilio J. Branciforte
  • Low resistance, thermally stable electrode structure for electroluminescent displays
    Patent number: 5445711
    Abstract: An electroluminescent display includes a transparent electrode (4) and a metal assist structure (6) formed over a portion of the transparent electrode (6) such that the metal assist structure (6) is in electrical contact with the transparent electrode (4). The metal assist structure (6) includes a first refractory metal layer (10), a primary conductor layer (12) formed on the first refractory metal layer (10), and a second refractory metal layer (14) formed on the primary conductor layer (12). The first and second refractory metal layers (10, 14) are capable of protecting the primary conductor layer (12) from oxidation when the electroluminescent display is annealed to activate a phosphor layer (18). In an alternate embodiment, an electroluminescent display includes a substrate (2) and a metal electrode (22) formed on the substrate (2).
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: August 29, 1995
    Assignee: Westinghouse Norden Systems
    Inventors: William J. Tanski, Roger Carroll, Emilio J. Branciforte