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).
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Patent number: 10520763Abstract: 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: GrantFiled: September 13, 2017Date of Patent: December 31, 2019Assignee: Apple Inc.Inventors: Shih-Chyuan Fan Jiang, Zhibing Ge, Lei Zhao, Chaohao Wang, Paul P. Lu
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Publication number: 20180350283Abstract: 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: ApplicationFiled: September 13, 2017Publication date: December 6, 2018Inventors: Shih-Chyuan Fan Jiang, Zhibing Ge, Lei Zhao, Chaohao Wang, Paul P. Lu
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Patent number: 9378861Abstract: 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: GrantFiled: June 17, 2013Date of Patent: June 28, 2016Assignee: Lockheed Martin CorporationInventors: Alfred A. Zinn, Paul P. Lu
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Publication number: 20140003991Abstract: 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: ApplicationFiled: June 17, 2013Publication date: January 2, 2014Applicant: Lockheed Martin CorporationInventors: Alfred A. ZINN, Paul P. Lu
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Patent number: 8486305Abstract: 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: GrantFiled: June 10, 2010Date of Patent: July 16, 2013Assignee: Lockheed Martin CorporationInventors: Alfred A. Zinn, Paul P. Lu
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Publication number: 20110127464Abstract: 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: ApplicationFiled: June 10, 2010Publication date: June 2, 2011Applicant: Lockheed Martin CorporationInventors: Alfred A. ZINN, Paul P. Lu
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Patent number: 5162269Abstract: 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: GrantFiled: July 15, 1991Date of Patent: November 10, 1992Assignee: Dow Corning CorporationInventors: David C. Deleeuw, Jonathan Lipowitz, Paul P. Lu
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Patent number: 5071600Abstract: 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: GrantFiled: January 16, 1990Date of Patent: December 10, 1991Assignee: Dow Corning CorporationInventors: David C. Deleeuw, Jonathan Lipowitz, Paul P. Lu
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Patent number: 5051215Abstract: 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: GrantFiled: March 21, 1990Date of Patent: September 24, 1991Assignee: Dow Corning CorporationInventors: James A. Rabe, Jonathan Lipowitz, Paul P. Lu
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Patent number: 4847027Abstract: 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: GrantFiled: July 6, 1987Date of Patent: July 11, 1989Assignee: Dow Corning CorporationInventor: Paul P. Lu
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Patent number: 4761458Abstract: 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: GrantFiled: August 17, 1987Date of Patent: August 2, 1988Assignee: Dow Corning CorporationInventors: Gary T. Burns, Paul P. Lu, Gregg A. Zank