Patents by Inventor Min-Hao Michael Lu

Min-Hao Michael Lu 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: 20040079945
    Abstract: A device and corresponding method are provided. The device includes an n-type transistor fabricated over a substrate, the n-type transistor having a gate and two current-carrying electrodes. The device also includes a non-inverted organic light emitting device fabricated over the substrate, the non-inverted organic light emitting device having an anode and a cathode. The cathode is connected to one of the current-carrying electrodes of the n-type transistor.
    Type: Application
    Filed: October 28, 2002
    Publication date: April 29, 2004
    Inventors: Michael S. Weaver, Michael Hack, Min-Hao Michael Lu
  • Publication number: 20040031977
    Abstract: An organic electronic device structure and a method of making the same. According to a first aspect of the invention, an organic electronic device structure is provided, which comprises: (a) a substrate layer; (b) an organic electronic region disposed over the substrate layer; (c) an adhesive layer disposed over the organic electronic device; and (d) a barrier layer disposed over the adhesive layer. According to a second aspect of the present invention, an organic electronic device structure is provided, which comprises: (a) a substrate layer; (b) an organic electronic region disposed over the substrate layer; (c) a barrier layer disposed over the organic electronic region; (d) an adhesive layer disposed over the substrate layer and over the barrier layer; and (e) an additional layer disposed over the adhesive layer. According to yet another aspect of the invention, a method for providing an organic electronic device structure of provided.
    Type: Application
    Filed: April 4, 2003
    Publication date: February 19, 2004
    Inventors: Julia J. Brown, Jeffrey Alan Silvernail, Michael Stuart Weaver, Anna Chwang, Min-Hao Michael Lu
  • Publication number: 20040032206
    Abstract: An organic light emitting device is provided. The device includes an anode, an organic layer disposed over the anode, a layer comprising an alkaline metal compound disposed over the organic layer, a layer comprising Mg or a Mg-metal alloy disposed over the layer comprising an alkaline metal compound, and a layer comprising a transparent conductive metal oxide disposed over the layer comprising Mg or Mg-metal alloy. A method of fabricating an organic light emitting device is also provided. An organic layer is deposited over an anode. An electron injection enhancement layer consisting essentially of an alkaline metal compound is deposited over the organic layer. A transparent cathode, including a layer of Mg or Mg-metal alloy and a layer of metal oxide, is deposited over the layer of alkaline metal compound. A device fabricated by this process is also provided.
    Type: Application
    Filed: August 16, 2002
    Publication date: February 19, 2004
    Inventors: Michael S. Weaver, Min-Hao Michael Lu, Theodore Zhou
  • Publication number: 20040032205
    Abstract: An organic light emitting device is provided. The device has a plurality of regions, each region having an organic emissive layer adapted to emit a different spectrum of light. The regions in combination emit light suitable for illumination purposes. The area of each region may be selected such that the device is more efficient that an otherwise equivalent device having regions of equal size. The regions may have an aspect ratio of at least about four. All parts of any given region may be driven at the same current.
    Type: Application
    Filed: August 16, 2002
    Publication date: February 19, 2004
    Inventors: Michael Hack, Min-Hao Michael Lu, Michael S. Weaver
  • Publication number: 20040007969
    Abstract: A device is provided. The device includes a substrate, a first electrode disposed over the substrate, a small molecule organic emissive layer disposed over the first electrode, and a second electrode disposed over the organic emissive layer. The substrate has a first index of refraction, and the organic emissive layer has a second index of refraction. The first index of refraction is higher than the second index of refraction. The device may have an external electroluminescent efficiency of at least about 56%. Bulky substituents or dopants may be used to decrease the index of refraction and/or the density of the organic emissive layer.
    Type: Application
    Filed: November 27, 2002
    Publication date: January 15, 2004
    Inventors: Min-Hao Michael Lu, James C. Sturm, Conor Francis Madigan, Raymond Kwong
  • Publication number: 20030190768
    Abstract: A method of fabricating a device is provided. A substrate having first conductive layer disposed thereon. An organic layer is fabricated over the first conductive layer. A second conductive layer is then fabricated over the organic layer such that the second conductive layer is in electrical contact with the first conductive layer during at least a portion of the step of depositing the second conductive layer. The electrical contact between the first conductive layer and the second conductive layer is then broken. A method of fabricating an active matrix array of organic light emitting devices is also provided. A substrate is obtained, having circuitry adapted to control the current flowing through each organic light emitting device, and having a first conductive layer disposed thereon, such that the first conductive layer is electrically attached to the circuitry. An organic layer is fabricated over the first conductive layer.
    Type: Application
    Filed: January 15, 2003
    Publication date: October 9, 2003
    Inventors: Min-Hao Michael Lu, Michael S. Weaver, Michael Hack
  • Publication number: 20030127973
    Abstract: OLED devices are disclosed having increased external electroluminescence quantum efficiencies, i.e., increased “out-coupling” efficiencies. OLED devices that have increased out-coupling efficiencies and that are also protected from environmental elements such as moisture and oxygen are also disclosed. The OLED device of the present invention comprises a substrate; an active region positioned on the substrate, wherein the active region comprises an anode layer, a cathode layer and a light-emitting layer disposed between the anode layer and the cathode layer; and a polymeric layer disposed (a) over the active region, (b) under the active region or (c) both over and under the active region. The polymeric layer has microparticles incorporated therein, and the microparticles are effective to increase the out-coupling efficiency of the OLED.
    Type: Application
    Filed: January 10, 2002
    Publication date: July 10, 2003
    Inventors: Michael Stuart Weaver, Vladimir Bulovic, Min-Hao Michael Lu
  • Patent number: 6569697
    Abstract: A method of fabricating a device is provided. A substrate having first conductive layer disposed thereon. An organic layer is fabricated over the first conductive layer. A second conductive layer is then fabricated over the organic layer such that the second conductive layer is in electrical contact with the first conductive layer during at least a portion of the step of depositing the second conductive layer. The electrical contact between the first conductive layer and the second conductive layer is then broken. A method of fabricating an active matrix array of organic light emitting devices is also provided. A substrate is obtained, having circuitry adapted to control the current flowing through each organic light emitting device, and having a first conductive layer disposed thereon, such that the first conductive layer is electrically attached to the circuitry. An organic layer is fabricated over the first conductive layer.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: May 27, 2003
    Assignee: Universal Display Corporation
    Inventors: Min-Hao Michael Lu, Michael S. Weaver, Michael Hack
  • Publication number: 20030044587
    Abstract: A method of fabricating a device is provided. A substrate having first conductive layer disposed thereon. An organic layer is fabricated over the first conductive layer. A second conductive layer is then fabricated over the organic layer such that the second conductive layer is in electrical contact with the first conductive layer during at least a portion of the step of depositing the second conductive layer. The electrical contact between the first conductive layer and the second conductive layer is then broken. A method of fabricating an active matrix array of organic light emitting devices is also provided. A substrate is obtained, having circuitry adapted to control the current flowing through each organic light emitting device, and having a first conductive layer disposed thereon, such that the first conductive layer is electrically attached to the circuitry. An organic layer is fabricated over the first conductive layer.
    Type: Application
    Filed: August 20, 2001
    Publication date: March 6, 2003
    Inventors: Min-Hao Michael Lu, Michael S. Weaver, Michael Hack
  • Publication number: 20030020073
    Abstract: The present invention relates to an organic light emitting device (OLED) for producing electroluminescence having, in order, for example, an anode, a hole transporting layer (HTL), a blocking layer, an electron transporting layer (ETL), and a cathode. In the devices of the present invention, the hole transporting layer comprises a polymeric material, which material may be emissive or may be doped with an emissive dopant. The blocking layer and the electron transporting layer are small-molecule materials. The presence of a blocking layer confines the emission of light to the polymer layer, which may be a HTL or a separate emitting layer (EL). The devices of the present invention are suitable for use in single color, multi-color and full-color, passive or active matrix OLED displays.
    Type: Application
    Filed: June 21, 2002
    Publication date: January 30, 2003
    Inventors: Ke Long, James C. Sturm, Min-Hao Michael Lu