Patents Assigned to E. I. du Pont de Nemours and Company duPont Displays Inc
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Patent number: 9209398Abstract: There is provided a process for vacuum drying. The process includes the steps of: depositing a liquid composition containing a film-forming material and at least one solvent onto a workpiece to form a wet layer; placing the wet layer on the workpiece into a vacuum chamber including a condenser; and treating the wet layer at a controlled temperature in the range of ?25 to 80° C. and under an applied vacuum in the range of 10?6 to 1,000 Torr for a period of 1-100 minutes; wherein the condenser is maintained at a temperature at which the solvent will condense as a liquid at the applied vacuum.Type: GrantFiled: March 9, 2010Date of Patent: December 8, 2015Assignee: E I DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAYS INCInventors: Reid John Chesterfield, Justin Butler, Paul Anthony Sant
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Publication number: 20130256603Abstract: Compositions are provided for improved liquid deposition of electroactive material onto low surface energy layers. The liquid composition includes at least one organic electroactive material in a liquid medium. The liquid medium includes (a) at least 20% by volume, based on the total volume of the liquid medium, of a first solvent and (b) at least 1% by volume, based on the total volume of the liquid medium, of a liquid organic additive. The liquid medium pins on the underlying layer as determined by a dynamic receding contact angle test. The first solvent retracts on the underlying layer as determined by the dynamic receding contact angle test.Type: ApplicationFiled: December 20, 2011Publication date: October 3, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAYS INCInventors: Reid John Chesterfield, Charles D. Lang, Henry J. Sarria, Hjalti Skulason
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Publication number: 20120161120Abstract: 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: ApplicationFiled: March 9, 2012Publication date: June 28, 2012Applicant: E. I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAY INCInventors: Che-Hsiung Hsu, Mark T. Martello, Hjalti Skulason
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Publication number: 20120077042Abstract: 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: ApplicationFiled: December 2, 2011Publication date: March 29, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAY INCInventors: CHE-HSIUNG HSU, Hjalti Skulason, Daniel D. Lecloux, Eric M. Smith, Shawn Yeisley, Robert C. Wheland
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Publication number: 20120077043Abstract: 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: ApplicationFiled: December 2, 2011Publication date: March 29, 2012Applicants: DUPONT DISPLAYS INC., E. I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAYS INCInventors: CHE-HSIUNG HSU, HJALTI SKULASON, DANIEL D. LECLOUX, ERIC M. SMITH, SHAWN YEISLEY, ROBERT C. WHELAND
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Publication number: 20110222222Abstract: An electronic device includes an array. In one embodiment, a process for forming an electronic device includes the array, which includes electronic components, can include printing one or more layers as a series of segments onto a workpiece. In one embodiment, a process includes printing a layer onto the workpiece and at least one exposed portion of the chuck. In still another embodiment, a printing head is greater than 0.5 mm from the workpiece. In a further embodiment, “hybrid” printing can be used to help form a thicker layer having a relatively thinner width. In a further embodiment, processes can be used to reduce the likelihood of a stitching defect, nonuniformity of a layer across an array, or a combination thereof. A printing apparatus can be modified to achieve more flexibility in liquid compositions, temperatures or other conditions used in printing a layer.Type: ApplicationFiled: May 16, 2011Publication date: September 15, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAYS INCInventors: CHARLES DOUGLAS MACPHERSON, Dennis Damon Walker, Matthew Stainer, Christopher Todd Knudson, Gang Yu
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Publication number: 20110183268Abstract: There is provided a process for forming a contained second layer over a first layer, including the steps: forming the first layer having a first surface energy; treating the first layer with a reactive surface-active composition to form a treated first layer having a second surface energy which is lower than the first surface energy; exposing the treated first layer with radiation; and forming the second layer. There is also provided an organic electronic device made by the process.Type: ApplicationFiled: April 5, 2011Publication date: July 28, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAYS INCInventors: Charles D. Lang, Stephen Sorich, Charles Kenneth Taylor, Douglas Robert Anton, Alberto Goenaga, Paul Anthony Sant
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Publication number: 20110163271Abstract: 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: ApplicationFiled: March 10, 2011Publication date: July 7, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAYS INCInventors: Che-Hsiung Hsu, Hjalti Skulason
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Publication number: 20110031441Abstract: There are provided electrically conducting polymer compositions comprising an electrectically conductive polymer or copolymer and an organic solvent wettable fluorinated acid polymer. Electrically conductive polymer materials are derived from thiophene, pyrrole, aniline and polycyclic heteroaromatic precursor monomers. Non-conductive polymers derived from alkenyl, alkynyl, arylene, and heteroarylene precursor monomers. The organic-solvent wettable fluorinated acid polymer is fluorinated or highly fluorinated and may be colloid-forming. Acidic groups include carboxylic acid groups, sulfonic acid groups, sulfonimide groups, phosphoric acid groups, phosphonic acid groups, and combinations thereof. The compositions can be used in organic electronic devices.Type: ApplicationFiled: October 15, 2010Publication date: February 10, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAY INCInventors: Che-Hsiung Hsu, Christopher P. Junk, Frank P. Uckert, Mark F. Teasley, Andrew Edward Feiring, Charles J. Dubois, Zhen-Yu Yang, Viacheslav A. Petrov, Natalie Daoud, Amy Qi Han
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Publication number: 20100291721Abstract: Processes for forming an electronic device include forming a first radiation region, a second radiation region spaced apart from the first radiation region, and an insulating region. The insulating region can have a first side and a second side opposite the first side. The first radiation region can lie immediately adjacent to the first side, and the second radiation region can lie immediately adjacent to the second side. Within the insulating region, no other radiation region may lie between the first and second radiation regions, and the insulating region can include an insulating layer that includes a plurality of openings. A process for forming the electronic device can include patterning an insulating layer.Type: ApplicationFiled: July 30, 2010Publication date: November 18, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAYS INCInventors: CHARLES DOUGLAS MACPHERSON, Gordana Srdanov, Gang Yu
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Patent number: 7727421Abstract: There is provided an electrically conductive polymer composition, comprising a first electrically conductive polymer doped with an organic solvent wettable fluorinated acid polymer in admixture with a second electrically conductive polymer doped with an organic solvent non-wettable fluorinated acid polymer.Type: GrantFiled: June 27, 2006Date of Patent: June 1, 2010Assignee: E. I. du Pont de Nemours and Company duPont Displays IncInventors: Che-Hsiung Hsu, Sunghan Kim, Ian Storms Moody