Patents by Inventor Paul P. Lu

Paul P. Lu 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: 10520763
    Abstract: Liquid crystal display systems and methods of operation are described. In an embodiment, a liquid crystal display pixel cell includes an insulation layer spanning over a passivation layer and the plurality of signal electrodes such that it separates the signal electrodes from polymer alignment layer for the liquid crystal. In an embodiment, a method of operating a liquid crystal display panel includes temporal compensation of the Vcom value as a function of time and one or more operating parameters.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: December 31, 2019
    Assignee: Apple Inc.
    Inventors: Shih-Chyuan Fan Jiang, Zhibing Ge, Lei Zhao, Chaohao Wang, Paul P. Lu
  • Publication number: 20180350283
    Abstract: Liquid crystal display systems and methods of operation are described. In an embodiment, a liquid crystal display pixel cell includes an insulation layer spanning over a passivation layer and the plurality of signal electrodes such that it separates the signal electrodes from polymer alignment layer for the liquid crystal. In an embodiment, a method of operating a liquid crystal display panel includes temporal compensation of the Vcom value as a function of time and one or more operating parameters.
    Type: Application
    Filed: September 13, 2017
    Publication date: December 6, 2018
    Inventors: Shih-Chyuan Fan Jiang, Zhibing Ge, Lei Zhao, Chaohao Wang, Paul P. Lu
  • Patent number: 9378861
    Abstract: A method of fabricating copper nanoparticles includes heating a copper salt solution that includes a copper salt, an N,N?-dialkylethylenediamine, and a C6-C18 alkylamine in an organic solvent to a temperature between about 30° C. to about 50° C.; heating a reducing agent solution that includes a reducing agent, an N,N?-dialkylethylenediamine, and a C6-C18 alkylamine in an organic solvent to a temperature between about 30° C. to about 50° C.; and adding the heated copper salt solution to the heated reducing agent solution, thereby producing copper nanoparticles. A composition includes copper nanoparticles, a C6-C18 alkylamine and an N,N?-dialkylethylenediamine ligand. Such copper nanoparticles in this composition have a fusion temperature between about 100° C. to about 200° C. A surfactant system for the stabilizing copper nanoparticles includes an N,N?-dialkylethylenediamine and a C6-C18 alkylamine.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: June 28, 2016
    Assignee: Lockheed Martin Corporation
    Inventors: Alfred A. Zinn, Paul P. Lu
  • Publication number: 20140003991
    Abstract: A method of fabricating copper nanoparticles includes heating a copper salt solution that includes a copper salt, an N,N?-dialkylethylenediamine, and a C6-C18 alkylamine in an organic solvent to a temperature between about 30° C. to about 50° C.; heating a reducing agent solution that includes a reducing agent, an N,N?-dialkylethylenediamine, and a C6-C18 alkylamine in an organic solvent to a temperature between about 30° C. to about 50° C.; and adding the heated copper salt solution to the heated reducing agent solution, thereby producing copper nanoparticles. A composition includes copper nanoparticles, a C6-C18 alkylamine and an N,N?-dialkylethylenediamine ligand. Such copper nanoparticles in this composition have a fusion temperature between about 100° C. to about 200° C. A surfactant system for the stabilizing copper nanoparticles includes an N,N?-dialkylethylenediamine and a C6-C18 alkylamine.
    Type: Application
    Filed: June 17, 2013
    Publication date: January 2, 2014
    Applicant: Lockheed Martin Corporation
    Inventors: Alfred A. ZINN, Paul P. Lu
  • Patent number: 8486305
    Abstract: A method of fabricating copper nanoparticles includes heating a copper salt solution that includes a copper salt, an N,N-dialkylethylenediamine, and a C6-C18 alkylamine in an organic solvent to a temperature between about 30° C. to about 50° C.; heating a reducing agent solution that includes a reducing agent, an N,N-dialkylethylenediamine, and a C6-C18 alkylamine in an organic solvent to a temperature between about 30° C. to about 50° C.; and adding the heated copper salt solution to the heated reducing agent solution, thereby producing copper nanoparticles. A composition includes copper nanoparticles, a C6-C18 alkylamine and an N,N?-dialkylethylenediamine ligand. Such copper nanoparticles in this composition have a fusion temperature between about 100° C. to about 200° C. A surfactant system for the stabilizing copper nanoparticles includes an N,N?-dialkylethylenediamine and a C6-C18 alkylamine.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: July 16, 2013
    Assignee: Lockheed Martin Corporation
    Inventors: Alfred A. Zinn, Paul P. Lu
  • Publication number: 20110127464
    Abstract: A method of fabricating copper nanoparticles includes heating a copper salt solution that includes a copper salt, an N,N-dialkylethylenediamine, and a C6-C18 alkylamine in an organic solvent to a temperature between about 30° C. to about 50° C.; heating a reducing agent solution that includes a reducing agent, an N,N-dialkylethylenediamine, and a C6-C18 alkylamine in an organic solvent to a temperature between about 30° C. to about 50° C.; and adding the heated copper salt solution to the heated reducing agent solution, thereby producing copper nanoparticles. A composition includes copper nanoparticles, a C6-C18 alkylamine and an N,N?-dialkylethylenediamine ligand. Such copper nanoparticles in this composition have a fusion temperature between about 100° C. to about 200° C. A surfactant system for the stabilizing copper nanoparticles includes an N,N?-dialkylethylenediamine and a C6-C18 alkylamine.
    Type: Application
    Filed: June 10, 2010
    Publication date: June 2, 2011
    Applicant: Lockheed Martin Corporation
    Inventors: Alfred A. ZINN, Paul P. Lu
  • Patent number: 5162269
    Abstract: This invention relates to the preparation of thermally stable, substantially polycrystalline silicon carbide ceramic fibers derived from a polycarbosilane resin. The unexpected thermal stability of these fibers is achieved by the incorporation of boron prior to ceramification.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: November 10, 1992
    Assignee: Dow Corning Corporation
    Inventors: David C. Deleeuw, Jonathan Lipowitz, Paul P. Lu
  • Patent number: 5071600
    Abstract: This invention relates to the preparation of thermally stable, substantially polycrystalline silicon carbide ceramic fibers derived from a polycarbosilane resin. The unexpected thermal stability of these fibers is achieved by the incorporation of boron prior to ceramification.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: December 10, 1991
    Assignee: Dow Corning Corporation
    Inventors: David C. Deleeuw, Jonathan Lipowitz, Paul P. Lu
  • Patent number: 5051215
    Abstract: A rapid method of infusibilizing (curing) preceramic polymers comprising treatment said polymers with gaseous nitrogen dioxide. The infusibilized polymers may be pyrolyzed to temperatures in excess of about 800.degree. C. to yield ceramic materials with low oxygen content and, thus, good thermal stability. The methods are especially useful for the production of ceramic fibers and, more specifically, to the on-line production of ceramic fibers.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: September 24, 1991
    Assignee: Dow Corning Corporation
    Inventors: James A. Rabe, Jonathan Lipowitz, Paul P. Lu
  • Patent number: 4847027
    Abstract: A method is disclosed for the preparation of ceramic materials or articles by the pyrolysis of preceramic polymers wherein the preceramic polymers are rendered infusible prior to pyrolysis by exposure to gaseous nitric oxide. Ceramic materials with low oxygen content, excellent physical properties, and good thermal stability can be obtained by the practice of this invention. This method is especially suited for the preparation of ceramic fibers.
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: July 11, 1989
    Assignee: Dow Corning Corporation
    Inventor: Paul P. Lu
  • Patent number: 4761458
    Abstract: Halogenated polycarbosilanes are prepared by reacting a polycarbosilane containing at least 0.1 weight percent Si-H groups with a halogenating reagent selected from the group consisting of chlorine, bromine, phosphorous pentachloride, phosphorous pentabromide, antimony pentachloride, N-chlorosuccinimide, N-bromosuccinimide, sulfonyl chloride, and mixtures of CH.sub.e X.sub.f and a free radical initiator where e is 0 or 1, f is 3 or 4, the sum (e+f) is 4, and X is chlorine or bromine. The halogenated polycarbosilanes can be further treated to produce other derivatized polycarbosilanes. The halogenated and derivatized polycarbosilanes can be converted to silicon carbide-containing ceramic materials by pyrolysis at elevated temperatures under an inert atmosphere.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: August 2, 1988
    Assignee: Dow Corning Corporation
    Inventors: Gary T. Burns, Paul P. Lu, Gregg A. Zank