Patents by Inventor Donald R. Preuss
Donald R. Preuss 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: 8722322Abstract: A method of improving conductivity of a metal pattern (18) includes providing a developed silver pattern (14) formed from a photographic silver salt provided in a binder coated on a substrate (12); and selectively heating the silver pattern with electromagnetic radiation.Type: GrantFiled: January 31, 2012Date of Patent: May 13, 2014Assignee: Eastman Kodak CompanyInventors: Donald R. Preuss, Mitchell S. Burberry
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Publication number: 20130193136Abstract: A system for improving conductivity of a metal pattern (18) includes a developed silver pattern (14) formed from a photographic silver salt in a binder coated on a substrate (12); and a device for selectively heating the silver pattern with electromagnetic radiation.Type: ApplicationFiled: January 31, 2012Publication date: August 1, 2013Inventors: Donald R. Preuss, Mitchell S. Burberry
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Publication number: 20130196269Abstract: A method of improving conductivity of a metal pattern (18) includes providing a developed silver pattern (14) formed from a photographic silver salt provided in a binder coated on a substrate (12); and selectively heating the silver pattern with electromagnetic radiation.Type: ApplicationFiled: January 31, 2012Publication date: August 1, 2013Inventors: Donald R. Preuss, Mitchell S. Burberry
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Patent number: 7911133Abstract: An OLED device including a transparent substrate having a first surface and a second surface, a transparent electrode layer disposed over the first surface of the substrate, a short reduction layer disposed over the transparent electrode layer, an organic light-emitting element disposed over the short reduction layer and including at least one light-emitting layer and a charge injection layer disposed over the light emitting layer, a reflective electrode layer disposed over the charge injection layer and a light extraction enhancement structure disposed over the first or second surface of the substrate; wherein the short reduction layer is a transparent film having a through-thickness resistivity of 10?9 to 102 ohm-cm2; wherein the reflective electrode layer includes Ag or Ag alloy containing more than 80% of Ag; and the total device size is larger than 10 times the substrate thickness.Type: GrantFiled: May 10, 2007Date of Patent: March 22, 2011Assignee: Global OLED Technology LLCInventors: Yuan-Sheng Tyan, Donald R. Preuss, Giuseppe Farruggia, Raymond A. Kesel, Thomas R. Cushman
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Patent number: 7888858Abstract: An light-emitting diode device, including a substrate; and a reflective electrode and a semi-transparent electrode formed over the substrate and an unpatterned white light-emitting layer formed between the reflective electrode and the semi-transparent electrode, the reflective electrode, semi-transparent electrode, and unpatterned white-light-emitting layer forming an optical microcavity, and wherein either the reflective or semi-transparent electrodes is patterned to form a plurality of independently controllable light-emitting elements with at least one light-emitting element having no color filter. Color filters are formed over a side of the semi-transparent electrodes opposite the unpatterned white light-emitting layer in correspondence with the light-emitting elements, the color filters having at least two different colors.Type: GrantFiled: August 21, 2007Date of Patent: February 15, 2011Assignee: Global OLED Technology LLCInventors: Ronald S. Cok, Joel D. Shore, Yuan-Sheng Tyan, Donald R. Preuss
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Patent number: 7859188Abstract: A light-emitting diode device, including a substrate; and a reflective electrode and a semi-transparent electrode formed over the substrate and an unpatterned white light-emitting layer formed between the reflective electrode and the semi-transparent electrode, the reflective electrode, semi-transparent electrode, and unpatterned white-light-emitting layer forming an optical microcavity, and wherein either the reflective or semi-transparent electrodes is patterned to form a plurality of independently controllable light-emitting elements with at least one light-emitting element having no color filter. Color filters are formed over a side of the semi-transparent electrodes opposite the unpatterned white light-emitting layer in correspondence with the light-emitting elements, the color filters having at least two different colors. Additionally, a reflected-light absorbing layer is located over all of the light-emitting elements.Type: GrantFiled: August 21, 2007Date of Patent: December 28, 2010Assignee: Global OLED Technology LLCInventors: Ronald S. Cok, Yuan-Sheng Tyan, Joel D. Shore, Donald R. Preuss
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Patent number: 7833074Abstract: A method of making a top-emitting LED device, including providing, over a substrate, a laterally spaced and optically opaque lower electrode and an upper electrode buss that is electrically insulated from the lower electrode; depositing material forming an EL medium structure over the lower electrode and the upper electrode buss; depositing, over the EL medium structure, a first light-transmissive upper electrode that protects the EL medium structure from particulate contamination; and selectively removing most of the EL medium structure over a selective portion of the upper electrode buss.Type: GrantFiled: September 4, 2007Date of Patent: November 16, 2010Assignee: Global OLED Technology LLCInventors: Ronald S. Cok, Mitchell S. Burberry, Donald R. Preuss
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Patent number: 7804245Abstract: An electroluminescent device having an opposing EL-segment pair, including a first EL-segment that produces light in response to a first through-device current having a first transparent electrode connection and a first reflective electrode connection; a second EL-segment that produces light in response to a second through-device current, and having a second transparent electrode connection and a second reflective electrode connection and being disposed adjacent to and spaced from the first EL-segment such that the first transparent electrode connection is on the opposite edge as the second transparent electrode connection and the direction of the first transparent electrode current is parallel but opposite to the direction of the second transparent electrode current; and the first and second EL-segments are connected to a common power source such that the two EL-segments can be simultaneously forward biased.Type: GrantFiled: January 24, 2008Date of Patent: September 28, 2010Assignee: Global OLED Technology LLCInventor: Donald R. Preuss
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Patent number: 7719182Abstract: An organic light-emitting diode (OLED) device, comprising: first and second non-metallic transparent electrodes, and one or more layers of organic material formed between the first and second non-metallic transparent electrodes, the layers of organic material including one or more light-emitting layers; and one or more non-metallic reflective layers located on a side of either of the first or second non-metallic transparent electrodes opposite to the organic material layers; wherein the device further comprises a light transmissive scattering layer in optical contact with the organic material layers and the electrodes or wherein at least one of the one or more non-metallic reflective layers comprises a reflective scattering layer in optical contact with the organic material layers and the electrodes. Additionally, a low-index layer is preferably employed in various embodiments to improve device sharpness.Type: GrantFiled: September 22, 2005Date of Patent: May 18, 2010Assignee: Global OLED Technology LLCInventors: Ronald S. Cok, Joseph F. Revelli, Jr., Joel D. Shore, Lee W. Tutt, Donald R. Preuss
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Patent number: 7602118Abstract: An organic light-emitting diode (OLED) device, comprising: a substrate; an OLED comprising first and second electrodes and one or more layers of organic light-emitting material formed between the electrodes, wherein at least one electrode comprises a transparent electrode, the transparent electrode and layer(s) of organic light-emitting material having a first refractive index range; and an encapsulating cover; wherein at least one of the substrate or cover comprises a transparent substrate or cover having a second refractive index and through which light from the OLED is emitted; and further comprising a light scattering layer located between the substrate and cover, and a transparent low-index element having a third refractive index lower than each of the first refractive index range and second refractive index and located between the scattering layer and the transparent substrate or cover.Type: GrantFiled: February 24, 2005Date of Patent: October 13, 2009Assignee: Eastman Kodak CompanyInventors: Ronald S. Cok, Donald R. Preuss, Yuan-Sheng Tyan
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Patent number: 7594839Abstract: A top-emitting organic light-emitting diode (OLED) device, comprising: a substrate; an OLED comprising a reflective electrode formed on the substrate; one-or-more layers of organic light-emitting material formed over the reflective electrode; and a transparent electrode formed over the one-or-more layers of organic light-emitting material; a light-scattering layer having a rough surface formed over and in contact with the OLED, a cover affixed to the substrate forming a gap between the cover and the light scattering layer; and wherein the gap is a vacuum or the gap is filled with a relatively low-refractive index gas and the light-scattering layer comprises a plurality of relatively high-refractive index light-scattering transparent particles projecting into the gap without contacting the cover and further comprising an adhesive binder in contact with at least some of the light-scattering particles to adhere the light-scattering particles to the OLED.Type: GrantFiled: February 24, 2006Date of Patent: September 29, 2009Assignee: Eastman Kodak CompanyInventors: Ronald S. Cok, Jin-Shan Wang, Raymond A. Kesel, Donald R. Preuss, Yuan-Sheng Tyan
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Publication number: 20090189532Abstract: An electroluminescent device having an opposing EL-segment pair, including a first EL-segment that produces light in response to a first through-device current having a first transparent electrode connection and a first reflective electrode connection; a second EL-segment that produces light in response to a second through-device current, and having a second transparent electrode connection and a second reflective electrode connection and being disposed adjacent to and spaced from the first EL-segment such that the first transparent electrode connection is on the opposite edge as the second transparent electrode connection and the direction of the first transparent electrode current is parallel but opposite to the direction of the second transparent electrode current; and the first and second EL-segments are connected to a common power source such that the two EL-segments can be simultaneously forward biased.Type: ApplicationFiled: January 24, 2008Publication date: July 30, 2009Inventor: Donald R. Preuss
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Patent number: 7564181Abstract: An organic light-emitting device includes a substrate; a first electrode and a second electrode positioned relative to the substrate in which at least one of the electrodes is the transparent electrode; an organic light-emitting element including at least a light-emitting layer disposed between the two electrodes; and a performance enhancement layer disposed between the two electrodes; wherein the performance enhancement layer is high index and has a thickness of at least 20 nm.Type: GrantFiled: April 8, 2005Date of Patent: July 21, 2009Assignee: Eastman Kodak CompanyInventors: Yuan-Sheng Tyan, Guiseppe Farruggia, Thomas R. Cushman, Donald R. Preuss
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Patent number: 7548021Abstract: An organic light-emitting diode (OLED) device, comprising: first and second transparent electrodes, and one or more layers of organic material formed between the first and second transparent electrodes, the layers of organic material including one or more light-emitting layers; a reflective layer having a surface plasmon-polariton-supporting reflective surface located on a side of either of the first or second transparent electrodes opposite to the organic material layers; and a scattering layer in optical contact with the organic material layers and the electrodes. In certain embodiments, layer spacing is preferably designed such that the distance between the reflective surface and at least one of the one or more light-emitting layers is equal to or greater than 60 nm. Additionally, a low-index layer is preferably employed in various embodiments to improve device sharpness.Type: GrantFiled: September 22, 2005Date of Patent: June 16, 2009Assignee: Eastman Kodak CompanyInventors: Ronald S. Cok, Joseph F. Revelli, Jr., Donald R. Preuss, Joel D. Shore, Lee W. Tutt
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Patent number: 7535646Abstract: A light-emitting device, comprising: a light emitting element on a first side of a transparent substrate or cover through which light is emitted; and a microlens array on a second side, opposite to the first side, of the transparent substrate or cover though which light is emitted; wherein the microlens array comprises individual hemispherical shaped microlenses having a mean diameter of less than 20 micrometers and a mean microlens height to diameter ratio of greater than 0.30, and has a microlens area fill factor greater than 0.8.Type: GrantFiled: April 27, 2007Date of Patent: May 19, 2009Assignee: Eastman Kodak CompanyInventors: Krishnan Chari, Charles W. Lander, Jin-Shan Wang, Donald R. Preuss, Ronald S. Cok, Yuan-Sheng Tyan, Joel D. Shore
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Publication number: 20090061724Abstract: A method of making a top-emitting LED device, including providing, over a substrate, a laterally spaced and optically opaque lower electrode and an upper electrode buss that is electrically insulated from the lower electrode; depositing material forming an EL medium structure over the lower electrode and the upper electrode buss; depositing, over the EL medium structure, a first light-transmissive upper electrode that protects the EL medium structure from particulate contamination; and selectively removing most of the EL medium structure over a selective portion of the upper electrode buss.Type: ApplicationFiled: September 4, 2007Publication date: March 5, 2009Inventors: Ronald S. Cok, Mitchell S. Burberry, Donald R. Preuss
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Publication number: 20090051284Abstract: An light-emitting diode device, including a substrate; and a reflective electrode and a semi-transparent electrode formed over the substrate and an unpatterned white light-emitting layer formed between the reflective electrode and the semi-transparent electrode, the reflective electrode, semi-transparent electrode, and unpatterned white-light-emitting layer forming an optical microcavity, and wherein either the reflective or semi-transparent electrodes is patterned to form a plurality of independently controllable light-emitting elements with at least one light-emitting element having no color filter. Color filters are formed over a side of the semi-transparent electrodes opposite the unpatterned white light-emitting layer in correspondence with the light-emitting elements, the color filters having at least two different colors.Type: ApplicationFiled: August 21, 2007Publication date: February 26, 2009Inventors: Ronald S. Cok, Joel D. Shore, Yuan-Sheng Tyan, Donald R. Preuss
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Publication number: 20090051283Abstract: A light-emitting diode device, including a substrate; and a reflective electrode and a semi-transparent electrode formed over the substrate and an unpatterned white light-emitting layer formed between the reflective electrode and the semi-transparent electrode, the reflective electrode, semi-transparent electrode, and unpatterned white-light-emitting layer forming an optical microcavity, and wherein either the reflective or semi-transparent electrodes is patterned to form a plurality of independently controllable light-emitting elements with at least one light-emitting element having no color filter. Color filters are formed over a side of the semi-transparent electrodes opposite the unpatterned white light-emitting layer in correspondence with the light-emitting elements, the color filters having at least two different colors. Additionally, a reflected-light absorbing layer is located over all of the light-emitting elements.Type: ApplicationFiled: August 21, 2007Publication date: February 26, 2009Inventors: Ronald S. Cok, Yuan-Sheng Tyan, Joel D. Shore, Donald R. Preuss
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Publication number: 20080278067Abstract: An OLED device including a transparent substrate having a first surface and a second surface, a transparent electrode layer disposed over the first surface of the substrate, a short reduction layer disposed over the transparent electrode layer, an organic light-emitting element disposed over the short reduction layer and including at least one light-emitting layer and a charge injection layer disposed over the light emitting layer, a reflective electrode layer disposed over the charge injection layer and a light extraction enhancement structure disposed over the first or second surface of the substrate; wherein the short reduction layer is a transparent film having a through-thickness resistivity of 10?9 to 102 ohm-cm2; wherein the reflective electrode layer includes Ag or Ag alloy containing more than 80% of Ag; and the total device size is larger than 10 times the substrate thickness.Type: ApplicationFiled: May 10, 2007Publication date: November 13, 2008Inventors: Yuan-Sheng Tyan, Donald R. Preuss, Giuseppe Farruggia, Raymond A. Kesel, Thomas R. Cushman
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Publication number: 20080117519Abstract: A light-emitting device, comprising: a light emitting element on a first side of a transparent substrate or cover through which light is emitted; and a microlens array on a second side, opposite to the first side, of the transparent substrate or cover though which light is emitted; wherein the microlens array comprises individual hemispherical shaped microlenses having a mean diameter of less than 20 micrometers and a mean microlens height to diameter ratio of greater than 0.30, and has a microlens area fill factor greater than 0.8.Type: ApplicationFiled: April 27, 2007Publication date: May 22, 2008Inventors: Krishnan Chari, Charles W. Lander, Jin-Shan Wang, Donald R. Preuss, Ronald S. Cok, Yuan-Sheng Tyan, Joel D. Shore