Patents by Inventor Che-Hsiung Hsu

Che-Hsiung Hsu 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: 8318046
    Abstract: Methods are provided to producing stable, aqueous dispersions of polyaniline and colloid-forming polymeric acids. Films from the disclosed compositions are useful as buffer layers, in organic electronic devices including electroluminescent devices, such as organic light emitting diodes (OLED) displays. Films cast from the compositions are also useful in combination with nanometal wires or carbon nanotubes in applications such as drain, source, or gate electrodes in thin film field effect transistors.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: November 27, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Frank P. Uckert
  • Publication number: 20120273772
    Abstract: Provided are organic n-doped electron transport layers comprising at least one electron transport material and at least one electron rich dopant material and organic p-doped hole transport layers comprising at least one hole transport material and at least one electron deficient dopant material.
    Type: Application
    Filed: July 2, 2012
    Publication date: November 1, 2012
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Shiva PRAKASH, CHE-HSIUNG HSU
  • Patent number: 8282861
    Abstract: The present invention relates to electrically conductive compositions, and their use in electronic devices. The composition includes either (1) a deuterated electrically conductive polymer doped with a highly-fluorinated acid polymer; or (2) (a) a deuterated electrically conductive polymer doped with a non-fluorinated polymeric acid and (b) at least one highly-fluorinated acid polymer.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: October 9, 2012
    Inventors: Che-Hsiung Hsu, Ralph Birchard Lloyd, Adam Fennimore, Michael Henry Howard, Jr.
  • Patent number: 8278405
    Abstract: There is provided a vinylphenoxy polymer having at least one monomeric unit selected from the group consisting of Formula Ia, Formula Ib and Formula Ic: In the formulae: Y is —OR1SO3Z; R1 is an alkylene group having 1-10 carbon atoms; R2 is an alkyl group or alkoxy group; Z is H or a Group 1 metal; a is an integer from 0 to 4; b is an integer from 0 to 3; and c is an integer from 0 to 2.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: October 2, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Shawn Yeisley, Che-Hsiung Hsu
  • Patent number: 8273459
    Abstract: There is provided a transparent composite conductor. The composite conductor has a first layer that includes a transparent conductive material and a second layer that includes a fluorinated acid polymer.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: September 25, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Hjalti Skulason, Daniel David Lecloux, Eric Maurice Smith, Shawn Yeisley, Robert Clayton Wheland
  • Patent number: 8241526
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in electronic devices. The compositions are an aqueous dispersion of at least one electrically conductive polymer doped with a non-fluorinated polymeric acid, at least one high-boiling polar organic solvent, and an additive selected from the group consisting of fullerenes, carbon nanotubes, and combinations thereof.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: August 14, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventor: Che-Hsiung Hsu
  • Publication number: 20120193585
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in organic electronic devices. The electrically conductive polymer compositions include (i) an intrinsically conductive polymer having at least one monomer unit which is a pyridine-fused heteroaromatic and (ii) a fluorinated acid polymer.
    Type: Application
    Filed: April 4, 2012
    Publication date: August 2, 2012
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: CHE-HSIUNG HSU, HJALTI SKULASON
  • Publication number: 20120187382
    Abstract: An organic light-emitting diode is provided having an anode, a cathode, and an organic active layer therebetween. The organic active layer includes a deuterated compound and the device has a calculated half-life at 1000 nits of at least 5000 hours.
    Type: Application
    Filed: December 22, 2009
    Publication date: July 26, 2012
    Applicant: E.I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Vsevolod Rostovtsev, Weiying Gao, Gary A. Johansson, Yulong Shen, Adam Fennimore, Kalindi Dogra, Hong Meng, Weishi Wu, Michael Henry Howard, JR., Ralph Birchard Lloyd, Nora Sabina Radu, Norman Herron, Daniel David Lecloux, Eric Maurice Smith, Che-Hsiung Hsu, Kyung-Ho Park, Jeffrey A. Merlo, Christina M. Older, Jerald Feldman, Ying Wang
  • Publication number: 20120181485
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in electronic devices. The compositions are an aqueous dispersion including: (i) at least one electrically conductive polymer doped with a non-fluorinated polymeric acid; (ii) at least one highly-fluorinated acid polymer; (iii) at least one water-compatible high-boiling organic solvent; and (iv) electrically insulative inorganic oxide nanoparticles.
    Type: Application
    Filed: April 21, 2010
    Publication date: July 19, 2012
    Applicant: E.I. Du Pont De Nemours And Company
    Inventor: Che-Hsiung Hsu
  • Publication number: 20120175596
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in electronic devices. The compositions contain a semi-aqueous dispersion of at least one electrically conductive polymer doped with at least one highly-fluorinated acid polymer, non-conductive oxide nanoparticles, at least one high-boiling organic liquid, and at least one lower-boiling organic liquid.
    Type: Application
    Filed: March 12, 2010
    Publication date: July 12, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Tami Janene Faircloth, Che-Hsiung Hsu, Veevin Tsao Kuo Hsu, Wesley Hsu, Trevor Hsu, Daniel David Lecloux, Hjalti Skulason, Gordana Srdanov, Charles D. Lang, Michel Dubeau, Nancy L. Gin
  • Patent number: 8216685
    Abstract: The present invention relates to buffer bilayers, and their use in electronic devices. The bilayer has a first layer including (i) at least one electrically conductive polymer doped with at least one non-fluorinated polymeric acid and (ii) at least one highly-fluorinated acid polymer. The bilayer has a second layer including a metal which can be one or more transition metals, Group 13 metals, Group 14 metals, or lanthanide metals.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: July 10, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Chi Zhang
  • Patent number: 8216680
    Abstract: There is provided a transparent composite conductor. The composite conductor has a first layer that includes a transparent conductive material and a second layer that includes a fluorinated acid polymer.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: July 10, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Hjalti Skulason, Daniel David Lecloux, Eric Maurice Smith, Shawn Yeisley, Robert Clayton Wheland
  • Publication number: 20120161120
    Abstract: There is provided an electrically conductive polymer composition. The composition contains an electrically conductive polymer made with an ultra-pure fully-fluorinated acid polymer.
    Type: Application
    Filed: March 9, 2012
    Publication date: June 28, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAY INC
    Inventors: Che-Hsiung Hsu, Mark T. Martello, Hjalti Skulason
  • Publication number: 20120145966
    Abstract: The present disclosure relates to electrically conductive polymer compositions, and their use in electronic devices. The compositions are an aqueous dispersion including: (i) at least one electrically conductive polymer doped with a non-fluorinated polymeric acid; (ii) at least one highly-fluorinated acid polymer; and (iii) electrically insulative oxide nanoparticles.
    Type: Application
    Filed: April 23, 2010
    Publication date: June 14, 2012
    Applicant: E.I. Du Pont De Nemours and Company
    Inventor: Che-Hsiung Hsu
  • Patent number: 8173047
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in organic electronic devices. The electrically conductive polymer compositions include (i) an intrinsically conductive polymer having at least one monomer unit which is a pyridine-fused heteroaromatic and (ii) a fluorinated acid polymer.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: May 8, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Hjalti Skulason
  • Patent number: 8153029
    Abstract: An aqueous composition including (a) a dispersion of at least one electrically conductive polymer doped with at least one highly-fluorinated acid polymer and (b) a second material which can be a second polymeric acid, an acid salt of the second polymeric acid, or a combination thereof.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: April 10, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Che-Hsiung Hsu
  • Patent number: 8147962
    Abstract: The invention relates to conductive polymer composites comprising a first layer comprising at least one electrically doped conductive polymer and a second layer comprising at least one material selected from a colloid-forming polymeric acid, a salt of a colloid-forming polymeric acid, a non-polymeric fluorinated organic acid, and a salt of a non-polymeric fluorinated organic acid.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: April 3, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Christopher P. Junk, Sunghan Kim, Daniel David Lecloux, Ralph Birchard Lloyd, Shiva Prakash
  • Patent number: 8147719
    Abstract: Electrically conductive polymer compositions are provided. The compositions are dispersed in an aqueous liquid medium having an oxygen content less than 10% of the saturated level. The compositions can be an electrically conductive polymer doped with a fluorinated acid polymer, an electrically conductive polymer in admixture with a fluorinated acid polymer, or mixtures thereof. The conductive polymer composition has a conductivity that changes by less than 10% in 30 days.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: April 3, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Hjalti Skulason, Mark T. Martello, Che-Hsiung Hsu
  • Patent number: 8147721
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in organic electronic devices. The electrically conductive polymer compositions include an intrinsically conductive polymer having at least on monomer unit derived from Formula I: where: X=N, CR6 Z=NH, S, O, Se, Te Q=N, CR5 R1 through R4 can be H, F, Cl, C1-C24 alkyl, C2-C24 alkenyl, aryl, C1-C10 alkoxy, C1-C10 alkylseleno, C1-C10 alkylthio, C1-C10 alkylsilyl, NH2, or C1-C10 dialkylamino, where adjacent R groups can join together to form a 5- or 6-membered aliphatic or aromatic rings, with the proviso that at least one of R1 through R4 is NH2, and. R5 and R6 can be H, C1-C24 alkyl, C2-C24 alkenyl, and aryl. The electrically conducting polymer is doped with a fluorinated acid polymer.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: April 3, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Hong Meng, Yulong Shen, Ming Zheng
  • Publication number: 20120077042
    Abstract: There is provided a transparent composite conductor. The composite conductor has a first layer that includes a transparent conductive material and a second layer that includes a fluorinated acid polymer.
    Type: Application
    Filed: December 2, 2011
    Publication date: March 29, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAY INC
    Inventors: CHE-HSIUNG HSU, Hjalti Skulason, Daniel D. Lecloux, Eric M. Smith, Shawn Yeisley, Robert C. Wheland