Patents by Inventor Steven A. Van Slyke
Steven A. Van Slyke 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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Publication number: 20060240277Abstract: A tandem OLED device includes an anode, a cathode, first and second electroluminescent units disposed between the anode and the cathode, and an intermediate connector disposed between the first and second electroluminescent units. Each of the electroluminescent units include at least one individually selected organic light-emitting layer, and the first electroluminescent unit includes a first electron-transporting layer disposed between the cathode and the light-emitting layer of the first electroluminescent unit, wherein the first electron-transporting layer includes a first electron-transporting material. The intermediate connector includes a first n-type doped organic layer disposed in contact with the first electron-transporting layer, and wherein the first n-type doped organic layer includes an n-type dopant and an electron-transporting material that is different from the first electron-transporting material.Type: ApplicationFiled: April 20, 2005Publication date: October 26, 2006Inventors: Tukaram Hatwar, Liang-Sheng Liao, Yuan-Sheng Tyan, Steven Van Slyke
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Publication number: 20060240278Abstract: An OLED device includes an anode, a cathode, and at least one individually selected organic light-emitting layer disposed between the anode and cathode. The device also includes an electron-transporting layer disposed between the at least one light-emitting layer and the cathode, such electron-transporting layer including a first electron-transporting material, and an electron-injecting layer disposed between the electron-transporting layer and the cathode, such electron-injecting layer including a metal dopant having a work function less than 4.0 eV and an electron-transporting material that is different from the first electron-transporting material.Type: ApplicationFiled: April 20, 2005Publication date: October 26, 2006Inventors: Tukaram Hatwar, Liang-Sheng Liao, Yuan-Sheng Tyan, Steven Van Slyke
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Patent number: 7067170Abstract: A method of depositing a patterned organic layer includes providing a manifold and an OLED display substrate in a chamber at reduced pressure and spaced relative to each other; providing a structure sealingly covering at least one surface of the manifold, the structure including a plurality of nozzles extending through the structure into the manifold. The method also includes delivering vaporized organic materials into the manifold, and applying an inert gas under pressure into the manifold so that the inert gas provides a viscous gas flow through each of the nozzles, such viscous gas flow transporting at least portions of the vaporized organic materials from the manifold through the nozzles to provide directed beams of the inert gas and of the vaporized organic materials and projecting the directed beams onto the OLED display substrate for depositing a pattern of an organic layer on the substrate.Type: GrantFiled: September 23, 2002Date of Patent: June 27, 2006Assignee: Eastman Kodak CompanyInventors: Michael A. Marcus, Jeremy Grace, Justin H. Klug, Steven A. Van Slyke
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Publication number: 20060125376Abstract: A cathode structure for use in an OLED device having one or more OLED layers includes a thin light-transmissive layer having a top surface and a bottom surface and including silver (Ag) wherein the Ag acts as a conductor for the cathode structure, and a light-transmissive electron-injecting layer disposed in contact with the bottom surface of the thin light-transmissive layer and with an underlying OLED layer. The structure also includes an oxide layer disposed over the thin light-transmissive layer, and a separation layer disposed between the top surface of the thin light-transmissive layer and the oxide layer.Type: ApplicationFiled: December 14, 2004Publication date: June 15, 2006Inventors: Amalkumar Ghosh, Steven Van Slyke, Angelo Pignata
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Publication number: 20060119556Abstract: An active matrix OLED display has pixels with light emitting areas arranged in rows and columns and includes; a first pixel having a first height in the column direction and disposed in a first column of pixels and in a first row of pixels; a second pixel having a second height in the column direction and disposed in the first column of pixels and in a second row of pixels wherein the second row of pixels is adjacent to the first row of pixels and the first height being different than the second height; and a first select line arranged to drive only the first row of pixels and a second select lines spaced from the first select line arranged to drive only the second row of pixels wherein the emitting areas of the first and second pixels are disposed between the first and second select lines.Type: ApplicationFiled: December 7, 2004Publication date: June 8, 2006Inventors: Dustin Winters, Steven Van Slyke
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Patent number: 7030553Abstract: An OLED device including an array of light emitting pixels, each pixel including subpixels having organic layers including at least one emissive layer that produces light and spaced electrodes, and wherein there are at least three gamut subpixels that produce colors which define a color gamut and at least one subpixel that produces light within the color gamut produced by the gamut subpixels; and wherein at least one of the gamut subpixels includes a reflector and a semitransparent reflector which function to form a microcavity.Type: GrantFiled: August 19, 2003Date of Patent: April 18, 2006Assignee: Eastman Kodak CompanyInventors: Dustin Winters, Yuan-Sheng Tyan, Steven A. Van Slyke, Ronald S. Cok, Andrew D. Arnold
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Patent number: 6995035Abstract: A method of making a top-emitting OLED device, includes providing over a substrate laterally spaced and optically opaque lower electrodes and upper electrode busses which are electrically insulated from the lower electrodes; depositing an organic EL medium structure over the lower electrodes and the upper electrode busses; selectively removing the organic EL medium structure over at least portions of the upper electrode busses to reveal at least upper surfaces of the upper electrode busses; and depositing a light transmissive upper electrode over the organic EL medium structure so that such upper electrode is in electrical contact with at least upper surfaces of the upper electrode busses.Type: GrantFiled: June 16, 2003Date of Patent: February 7, 2006Assignee: Eastman Kodak CompanyInventors: Ronald S. Cok, Steven A. Van Slyke
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Publication number: 20050227387Abstract: A method of bonding a common cover plate over a plurality of OLED devices formed on a device substrate includes providing an unpatterned or a patterned layer of a pressure-sensitive adhesive (PSA) material over a surface of the cover plate; bonding the cover plate over the OLED devices; and singulating individual OLED devices having a bonded cover plate and permitting electrical access to electrical interconnects associated with each OLED device for attaching electrical leads thereto.Type: ApplicationFiled: February 26, 2004Publication date: October 13, 2005Inventors: Joseph Yokajty, Jeffrey Serbicki, Steven Van Slyke
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Publication number: 20050212419Abstract: A method of encapsulating a plurality of OLED devices formed on a common substrate includes stacking a number of repeating assemblies of patterned layers over the OLED devices while leaving outermost portions of electrical interconnects of such encapsulated devices accessible for connecting electrical leads thereto.Type: ApplicationFiled: March 23, 2004Publication date: September 29, 2005Inventors: Fridrich Vazan, Amalkumar Ghosh, George Olin, Jeffrey Serbicki, Joseph Yokajty, Steven Van Slyke
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Publication number: 20050155704Abstract: A method of bonding a cover plate over OLED devices formed on a surface of a device substrate wherein each one of the OLED devices includes at least one electrical interconnect area includes providing a flow-preventing pattern on a surface of the cover plate or on the OLED devices absent from the electrical interconnect areas of the OLED devices to prevent flow of a flowable adhesive material into at least the outermost portions of such interconnect areas; dispensing a selected amount of a flowable curable adhesive material on the surface of the cover plate in registration with the flow-preventing pattern; engaging the cover plate in alignment with the substrate; and curing the adhesive material.Type: ApplicationFiled: January 16, 2004Publication date: July 21, 2005Inventors: Joseph Yokajty, Jeffrey Serbicki, Steven Van Slyke
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Patent number: 6917159Abstract: A microcavity OLED device including a substrate; a metallic bottom-electrode layer disposed over the substrate; a metallic top-electrode layer spaced from the metallic bottom-electrode layer; and an organic EL medium structure having a defined thickness, and including a light-emitting layer comprising a host material and at least one dopant disposed between the top-electrode layer and the bottom-electrode layer; wherein one of the metallic electrode layers is light transmissive and the other one is essentially opaque and reflective; wherein the material for reflective metallic electrode layer includes Ag, Au, Al, or alloys thereof, and the material for the light transmissive metallic electrode layer includes Ag, Au, or alloys thereof. The at least one dopant is selected to generate one of red, green, or blue light in the light-emitting layer.Type: GrantFiled: August 14, 2003Date of Patent: July 12, 2005Assignee: Eastman Kodak CompanyInventors: Yuan-Sheng Tyan, Giuseppe Farruggia, Joel D. Shore, Joseph C. Deaton, Steven A. Van Slyke
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Patent number: 6911671Abstract: A new use for a structure including a plurality of nozzles extending through the structure, and the nozzles being spaced from each other in correspondence with the pattern to be deposited onto an OLED display substrate so that vaporized organic material is transported through the nozzles in a desired pattern for deposition onto the OLED display substrate.Type: GrantFiled: September 23, 2002Date of Patent: June 28, 2005Assignee: Eastman Kodak CompanyInventors: Michael A. Marcus, Jeremy Grace, Justin H. Klug, Steven A. Van Slyke
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Publication number: 20050073228Abstract: A white light emitting OLED apparatus includes a microcavity OLED device and a light-integrating element, wherein the microcavity OLED device has a white light emitting organic EL element and the microcavity OLED device is configured to have angular-dependent narrow-band emission, and the light-integrating element integrates the angular-dependent narrow-band emission from different angles from the microcavity OLED device to form white light emission.Type: ApplicationFiled: October 7, 2003Publication date: April 7, 2005Inventors: Yuan-Sheng Tyan, Steven Van Slyke, Joel Shore, Giuseppe Farruggia, Thomas Cushman
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Publication number: 20050040756Abstract: An OLED device including an array of light emitting pixels, each pixel including subpixels having organic layers including at least one emissive layer that produces light and spaced electrodes, and wherein there are at least three gamut subpixels that produce colors which define a color gamut and at least one subpixel that produces light within the color gamut produced by the gamut subpixels; and wherein at least one of the gamut subpixels includes a reflector and a semitransparent reflector which function to form a microcavity.Type: ApplicationFiled: August 19, 2003Publication date: February 24, 2005Inventors: Dustin Winters, Yuan-Sheng Tyan, Steven Van Slyke, Ronald Cok, Andrew Arnold
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Publication number: 20050037232Abstract: A microcavity OLED device including a substrate; a metallic bottom-electrode layer disposed over the substrate; a metallic top-electrode layer spaced from the metallic bottom-electrode layer; and an organic EL medium structure having a defined thickness, and including a light-emitting layer comprising a host material and at least one dopant disposed between the top-electrode layer and the bottom-electrode layer; wherein one of the metallic electrode layers is light transmissive and the other one is essentially opaque and reflective; wherein the material for reflective metallic electrode layer includes Ag, Au, Al, or alloys thereof, and the material for the light transmissive metallic electrode layer includes Ag, Au, or alloys thereof. The at least one dopant is selected to generate one of red, green, or blue light in the light-emitting layer.Type: ApplicationFiled: August 14, 2003Publication date: February 17, 2005Inventors: Yuan-Sheng Tyan, Giuseppe Farruggia, Joel Shore, Joseph Deaton, Steven Van Slyke
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Publication number: 20040253756Abstract: A method of making a top-emitting OLED device, includes providing over a substrate laterally spaced and optically opaque lower electrodes and upper electrode busses which are electrically insulated from the lower electrodes; depositing an organic EL medium structure over the lower electrodes and the upper electrode busses; selectively removing the organic EL medium structure over at least portions of the upper electrode busses to reveal at least upper surfaces of the upper electrode busses; and depositing a light transmissive upper electrode over the organic EL medium structure so that such upper electrode is in electrical contact with at least upper surfaces of the upper electrode busses.Type: ApplicationFiled: June 16, 2003Publication date: December 16, 2004Applicant: Eastman Kodak CompanyInventors: Ronald S. Cok, Steven A. Van Slyke
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Patent number: 6797314Abstract: A method of handling powders of organic materials in making an organic light-emitting device (OLED) is disclosed. The method includes forming solid pellets from powders of organic materials and using such pellets in a thermal physical vapor deposition source for making an organic layer on a structure which will form part of an OLED.Type: GrantFiled: July 3, 2001Date of Patent: September 28, 2004Assignee: Eastman Kodak CompanyInventors: Steven A. Van Slyke, Dilip K. Chatterjee, Syamal K. Ghosh, Donn B. Carlton
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Publication number: 20040149984Abstract: A color organic light-emitting display having an array of pixels divided into at least two different color pixel sets each color pixel set emitting a different predetermined color, wherein each pixel in the array includes a metallic bottom-electrode layer; an organic EL element including a light-emitting layer for emitting the predetermined color light and a metallic top-electrode layer over the organic EL element, spaced from the metallic bottom-electrode layer by a distance selected to improve the emission light output efficiency; and wherein one of the metallic electrode layers is semitransparent and the other one is essentially opaque and reflective; wherein the material for the semitransparent metallic electrode and the reflective electrode includes specific materials; and the thickness of the semitransparent metallic electrode layer and the position of the light-emitting layer between the electrodes are selected to enhance emission light output efficiency.Type: ApplicationFiled: January 31, 2003Publication date: August 5, 2004Applicant: Eastman Kodak CompanyInventors: Yuan-Sheng Tyan, Steven A. Van Slyke, Joel D. Shore, Giuseppe Farruggia
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Publication number: 20040144321Abstract: The need is met according to the present invention by providing a method of designing a system for thermal vapor deposition that includes a material to be deposited on a workpiece, an elongated container for containing the material, a heater for heating the material in the container to vaporize the material, the container defining n apertures for emitting the vaporized material in an elongated pattern in the elongated direction, that includes the steps of: calculating the total source throughput Q per unit length at a deposition rate of interest; calculating the internal pressure P of the source required to produce Q for the total aperture conductance CA of the source; modeling the system as a ladder network of conductances, the elongated container having a container conductance CB and conductances Cb=nCB, between apertures, and the apertures having a combined conductance 1 C A = ∑ i = 1 n ⁢ ⁢ C ai ,Type: ApplicationFiled: January 28, 2003Publication date: July 29, 2004Applicant: Eastman Kodak CompanyInventors: Jeremy M. Grace, Dennis R. Freeman, Neil Redden, Justin H. Klug, Steven A. Van Slyke
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Patent number: 6749906Abstract: A thermal physical vapor deposition apparatus includes an elongated vapor distributor disposed in a chamber held at reduced pressure, and spaced from a structure which is to receive an organic layer in forming part of an OLED. One or more detachable organic material vapor sources are disposed outside of the chamber, and a vapor transport device including a valve sealingly connects each attached vapor source to the vapor distributor. During vapor deposition of the organic layer, the structure is moved with respect to the vapor distributor to provide an organic layer of improved uniformity on the structure.Type: GrantFiled: April 25, 2002Date of Patent: June 15, 2004Assignee: Eastman Kodak CompanyInventor: Steven A. Van Slyke