Patents by Inventor Ching W. Tang

Ching W. Tang 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).

  • Publication number: 20160308132
    Abstract: A method of making a patterned OLED layer or layers. The method uses a shadow mask having, for example, a free-standing silicon nitride membrane to pattern color emitter material with a feature size of less than 10 microns. The methods can be used, for example, in the manufacture of OLED microdisplays.
    Type: Application
    Filed: June 24, 2016
    Publication date: October 20, 2016
    Inventors: Charles K. Chan, Ching W. Tang, Fridrich Vazan, Amal Ghosh
  • Patent number: 9385323
    Abstract: A method of making a patterned OLED layer or layers. The method uses a shadow mask having, for example, a free-standing silicon nitride membrane to pattern color emitter material with a feature size of less than 10 microns. The methods can be used, for example, in the manufacture of OLED microdisplays.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: July 5, 2016
    Assignees: University of Rochester, eMagin Corporation
    Inventors: Charles K. Chan, Ching W. Tang, Fridrich Vazan, Amal Ghosh
  • Publication number: 20150380652
    Abstract: A method of making a patterned OLED layer or layers. The method uses a shadow mask having, for example, a free-standing silicon nitride membrane to pattern color emitter material with a feature size of less than 10 microns. The methods can be used, for example, in the manufacture of OLED microdisplays.
    Type: Application
    Filed: September 9, 2015
    Publication date: December 31, 2015
    Inventors: Charles K. Chan, Ching W. Tang, Fridrich Vazan, Amal Ghosh
  • Patent number: 9142779
    Abstract: A method of making a patterned OLED layer or layers. The method uses a shadow mask having, for example, a free-standing silicon nitride membrane to pattern color emitter material with a feature size of less than 10 microns. The methods can be used, for example, in the manufacture of OLED microdisplays.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: September 22, 2015
    Assignees: University of Rochester, eMagin Corporation
    Inventors: Charles K. Chan, Ching W. Tang, Fridrich Vazan, Amal Ghosh
  • Publication number: 20150041793
    Abstract: A method of making a patterned OLED layer or layers. The method uses a shadow mask having, for example, a free-standing silicon nitride membrane to pattern color emitter material with a feature size of less than 10 microns. The methods can be used, for example, in the manufacture of OLED microdisplays.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 12, 2015
    Inventors: Charles K. Chan, Ching W. Tang, Fridrich Vazan, Amal Ghosh
  • Patent number: 8237157
    Abstract: An organic device including at least two electrodes; at least one organic active layer, wherein the organic active layer is disposed in between two electrodes; and an electrode modification layer, wherein the electrode modification layer is disposed in between two electrodes and in contact with one of the electrodes; and the electrode modification layer includes a fluorocarbon compound selected from the materials having a chemical structure of (CxFy)n, wherein the “x”, “y”, and “n” are integers, and wherein 1<x?70, 1<y?50, and n?1.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: August 7, 2012
    Assignee: Global OLED Technology LLC
    Inventors: Liang-Sheng Liao, Myron W. Culver, Ching W. Tang
  • Publication number: 20110203667
    Abstract: An organic device including at least two electrodes; at least one organic active layer, wherein the organic active layer is disposed in between two electrodes; and an electrode modification layer, wherein the electrode modification layer is disposed in between two electrodes and in contact with one of the electrodes; and the electrode modification layer includes a fluorocarbon compound selected from the materials having a chemical structure of (CxFy)n, wherein the “x”, “y”, and “n” are integers, and wherein 1<x?70, 1<y?50, and n?1.
    Type: Application
    Filed: August 23, 2010
    Publication date: August 25, 2011
    Applicant: Global OLED Technology LLC
    Inventors: Liang-Sheng Liao, Myron W. Culver, Ching W. Tang
  • Patent number: 7799439
    Abstract: An organic device including at least two electrodes; at least one organic active layer, wherein the organic active layer is disposed in between two electrodes; and an electrode modification layer, wherein the electrode modification layer is disposed in between two electrodes and in contact with one of the electrodes; and the electrode modification layer includes a fluorocarbon compound selected from the materials having a chemical structure of (CxFy)n, wherein the “x”, “y”, and “n” are integers, and wherein 1<x?70, 1<y?50, and n?1.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: September 21, 2010
    Assignee: Global OLED Technology LLC
    Inventors: Liang-Sheng Liao, Myron W. Culver, Ching W. Tang
  • Patent number: 7560862
    Abstract: A tandem white OLED includes an anode; a cathode; at least one broadband electroluminescent unit disposed between the anode and the cathode, wherein the broadband electroluminescent unit includes at least one light-emitting layer and produces at least one color component having an intensity less than desired; at least one color-compensating electroluminescent unit disposed between the anode and the cathode, wherein the color-compensating electroluminescent unit is selected to produce the at least one color component and to increase the color component intensity; and an intermediate connector disposed between each adjacent electroluminescent unit, wherein the intermediate connector has no direct connection to an external power source.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: July 14, 2009
    Assignee: Eastman Kodak Company
    Inventors: Liang-Sheng Liao, Tukaram K. Hatwar, Kevin P. Klubek, Dustin L. Comfort, Ching W. Tang
  • Patent number: 7532181
    Abstract: A display for producing either visible or invisible images to the human eyes comprising a plurality of pixels wherein each of the pixels includes one or more visible radiation subpixels capable of producing visible radiations to the human eyes and at least one invisible radiation subpixel capable of producing invisible radiations to the human eyes; and means for selectively operating the display to activate either visible or invisible radiation subpixels to respectively producing visible or invisible images to the human eyes.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: May 12, 2009
    Assignee: Eastman Kodak Company
    Inventors: Ching W. Tang, Liang-Sheng Liao
  • Patent number: 7528545
    Abstract: An OLED device comprising an anode and a cathode spaced from the anode, two EL units disposed between the anode and cathode, such EL units being in contact with each other and each having at least one light emitting layer; and each EL unit further includes a p-type doped organic hole transporting layer disposed between the light emitting layer and the anode, and an n-type doped organic electron transporting layer disposed between the light emitting layer and the cathode.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: May 5, 2009
    Assignee: Eastman Kodak Company
    Inventors: Liang-Sheng Liao, Kevin P. Klubek, Ching W. Tang
  • Patent number: 7368178
    Abstract: An organic light-emitting device includes a substrate, an anode, and a cathode disposed over the substrate, and a luminescent layer disposed between the anode and the cathode wherein the luminescent layer includes a host and at least one dopant. The host of the luminescent layer is selected to include a solid organic material comprising a mixture of at least two components, wherein the first component is an organic compound containing an aminoanthracene.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: May 6, 2008
    Assignee: Eastman Kodak Company
    Inventors: Kevin P. Klubek, Ching W. Tang
  • Patent number: 7273663
    Abstract: A tandem white OLED device includes an anode, a cathode, and a plurality of organic electroluminescence units disposed between the anode and the cathode, wherein each organic electroluminescence unit includes at least one light-emitting layer, and wherein each organic electroluminescence unit emits white light. The device also includes an intermediate connector disposed between each adjacent organic electroluminescence unit, wherein the intermediate connector includes at least two different layers, and wherein the intermediate connector has no direct connection to an external power source.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: September 25, 2007
    Assignee: Eastman Kodak Company
    Inventors: Liang-Sheng Liao, Tukaram K. Hatwar, Kevin P. Klubek, Ching W. Tang
  • Patent number: 7169484
    Abstract: A process for forming a film of the facial-isomer of an aluminum trisquinoline complex comprises depositing a film of an aluminum trisquinoline complex on a support, depositing an inert barrier layer over the layer of aluminum trisquinoline complex that encapsulates aluminum trisquinoline complex to form a multilayer composite, and then heating the composite at a temperature below the melting point temperature of the complex for a time sufficient to convert the aluminum trisquinoline complex to at least 99 mol % of the facial-isomer that fluoresces with a maximum emission intensity below 510 nm. The product has a blue hue.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: January 30, 2007
    Assignee: Eastman Kodak Company
    Inventors: Manju Rajeswaran, Thomas N. Blanton, Ching W. Tang
  • Patent number: 7126267
    Abstract: A tandem OLED includes an anode, a cathode, and a plurality of organic electroluminescent units disposed between the anode and the cathode, wherein each organic electroluminescent unit includes at least one light-emitting layer, and an intermediate connector disposed between each adjacent organic electroluminescent unit, wherein the intermediate connector includes at least a high work function metal layer having a work function of no less than 4.0 eV and a metal compound layer, wherein the intermediate connector has a sheet resistance of higher than 100 k? per square, and wherein the high work function metal layer improves the operational stability of the OLED.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: October 24, 2006
    Assignee: Eastman Kodak Company
    Inventors: Liang-Sheng Liao, Ching W. Tang
  • Patent number: 7064733
    Abstract: An image display, includes a substrate; a light emitter formed on the substrate; and a photo-sensor formed on the substrate and optically coupled directly to the light emitter.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: June 20, 2006
    Assignee: Eastman Kodak Company
    Inventors: Ronald S. Cok, Ching W. Tang
  • Patent number: 7037599
    Abstract: An OLED device comprising a substrate, an anode electrode and a cathode electrode, a uniaxial alignment layer disposed between the anode electrode and the cathode electrode, a light-emitting layer disposed over the uniaxial alignment layer and capable of producing polarized light, and a carrier confinement layer disposed over the light emitting layer and wherein the carrier confinement layer blocks either holes, electrons, or excitons. The light-emitting layer includes an oligomeric fluorene or a mixture of oligomeric fluorenes.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: May 2, 2006
    Assignee: Eastman Kodak Company
    Inventors: Sean W. Culligan, Yanhou Geng, Shaw H. Chen, Kevin P. Klubek, Kathleen M. Vaeth, Ching W. Tang
  • Patent number: 7030554
    Abstract: A full-color organic display for displaying a color image, including an array of pixels arranged in repeating patterns, wherein each pixel has red, green, and blue light-emitting subpixels, and wherein each red and green light-emitting subpixel contains only one EL unit, while each blue light-emitting subpixel contains more than one vertically stacked EL unit.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: April 18, 2006
    Assignee: Eastman Kodak Company
    Inventors: Liang-Sheng Liao, Kevin P. Klubek, Ching W. Tang
  • Patent number: 6991859
    Abstract: A cascaded organic electroluminescent device includes an anode, a cathode, and a plurality of organic electroluminescent units disposed between the anode and the cathode, wherein the organic electroluminescent units comprise at least a hole-transporting layer and an electron-transporting layer. The device also includes a connecting unit disposed between each adjacent organic electroluminescent unit, wherein the connecting unit comprises, in sequence, an n-type doped organic layer, and a p-type doped organic layer wherein the p-type doped organic layer includes a dihydrophenazine derivative compound.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: January 31, 2006
    Assignee: Eastman Kodak Company
    Inventors: Kevin P. Klubek, Liang-Sheng Liao, Ching W. Tang, J. Ramon Vargas
  • Patent number: 6965197
    Abstract: An enhanced light extraction OLED device including a transparent substrate; light scattering layer disposed over a first surface of the transparent substrate; a transparent first electrode layer disposed over the light scattering layer; an organic EL element disposed over the transparent first electrode layer and including one or more organic layers but at least one light emitting layer in which light is produced; and a transparent second electrode layer disposed over the organic EL element.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: November 15, 2005
    Assignee: Eastman Kodak Company
    Inventors: Yuan-Sheng Tyan, Ching W. Tang, Liang-Sheng Liao