Patents by Inventor Julia J. Brown

Julia J. Brown 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).

  • Patent number: 10700134
    Abstract: This disclosure relates to reduced power consumption OLED displays at reduced cost for reduced information content applications, such as wearable displays. Image quality for wearable displays can be different than for high information content smart phone displays and TVs, where the wearable display has an architecture that in includes, for example, an all phosphorescent device and/or material system that may be fabricated at reduced cost. The reduced power consumption can facilitate wireless and solar charging.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: June 30, 2020
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Julia J. Brown, Michael Stuart Weaver, Woo-Young So
  • Publication number: 20200203439
    Abstract: This disclosure relates to reduced power consumption OLED displays at reduced cost for reduced information content applications, such as wearable displays. Image quality for wearable displays can be different than for high information content smart phone displays and TVs, where the wearable display has an architecture that in includes, for example, an all phosphorescent device and/or material system that may be fabricated at reduced cost. The reduced power consumption can facilitate wireless and solar charging.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 25, 2020
    Inventors: Michael HACK, Julia J. BROWN, Michael Stuart WEAVER, Woo-Young SO
  • Patent number: 10686159
    Abstract: Devices, components and fabrication methods are provided for improving the efficiency of OLED displays. An outcoupling component such as a microlens array (MLA) is attached to an OLED, with a relatively small distance between the MLA and the OLED. Cross-talk and back scattering are reduced by the use of colored lenses, focusing layers, and other methods.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: June 16, 2020
    Assignee: Universal Display Corporation
    Inventors: Ruiqing Ma, Julia J. Brown, Chaoyu Xiang, Michael Hack, Jason Paynter
  • Patent number: 10672997
    Abstract: A compound is disclosed that has a metal coordination complex structure having at least two ligands coordinated to the metal; wherein the compound has a first substituent R1 at one of the ligands' periphery; wherein a first distance is defined as the distance between the metal and one of the atoms in R1 where that atom is the farthest away from the metal among the atoms in R1; wherein the first distance is also longer than any other atom-to-metal distance between the metal and any other atoms in the compound; and wherein when a sphere having a radius r is defined whose center is at the metal and the radius r is the smallest radius that will allow the sphere to enclose all atoms in the compound that are not part of R1, the first distance is longer than the radius r by at least 2.9 ?.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: June 2, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Eric A. Margulies, Zhiqiang Ji, Jui-Yi Tsai, Chun Lin, Alexey Borisovich Dyatkin, Mingjuan Su, Bin Ma, Michael S. Weaver, Julia J. Brown, Lichang Zeng, Walter Yeager, Alan Deangelis, Chuanjun Xia
  • Publication number: 20200161584
    Abstract: A flexible AMOLED display is disclosed including an OLED stack having an anode layer, a cathode layer and an organic light emitting layer between the anode layer and the cathode layer. A backplane includes a substrate, a plurality of bus lines, and a thin film transistor array. A permeation barrier layer is positioned between the OLED stack and the backplane, and a plurality of vias connect the OLED anode layer to the backplane thin film transistor array. In one embodiment, a neutral plane of the AMOLED display crosses the permeation barrier. In one embodiment, the thickness of at least a portion of the bus lines is greater than the thickness of the cathode layer. A method of increasing the flexibility of an AMOLED display is disclosed. A method of assembling a flexible AMOLED display under a processing temperature of less than 200 degrees Celsius is also disclosed.
    Type: Application
    Filed: November 25, 2019
    Publication date: May 21, 2020
    Inventors: Michael Hack, Ruiqing Ma, Julia J. Brown
  • Publication number: 20200119279
    Abstract: Systems and arrangements of OVJP deposition devices are provided, in which one or more organic material crucibles are directly attached to an injection block and a print head without the need for external delivery components such as feedtubes. Each crucible may be hermetically sealed until it is attached to the injection block, allowing for a single device to provide for storage, transport, and deposition of the organic material.
    Type: Application
    Filed: November 20, 2019
    Publication date: April 16, 2020
    Inventors: Matthew KING, William E. QUINN, Gregory MCGRAW, Siddharth HARIKRISHNA MOHAN, Elliot H. HARTFORD, Benjamin SWEDLOVE, Gregg KOTTAS, Tomasz TROJACKI, Julia J. BROWN
  • Publication number: 20200119312
    Abstract: Novel microlens array architectures for enhanced light outcoupling from light emission are provided. Organic light emitting devices (OLEDs) that include an outcoupling layer including these novel microlens array architectures and method for fabricating such OLEDs are provided. These devices may be used to provide OLEDs with optimized light extraction.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 16, 2020
    Inventors: Yue CUI, Deng-ke YANG, Ruiqing Ma, Gregory McGraw, Julia J. Brown
  • Publication number: 20200111989
    Abstract: Embodiments of the disclosed subject matter may provide a wearable device that includes an organic light emitting diode (OLED) light source to output light. At least one emissive layer of the OLED light source of the wearable device may have a plurality of segments that are independently controllable to output the light at a duty cycle of less than 100%. The OLED light source of the wearable device may be encapsulated.
    Type: Application
    Filed: September 19, 2019
    Publication date: April 9, 2020
    Inventors: Michael HACK, Michael S. WEAVER, Julia J. BROWN
  • Patent number: 10586486
    Abstract: Light emitting devices including sub-pixels having different numbers of emissive layers are provided. At least one sub-pixel of a first color may include a single emissive layer, and at least one sub-pixel of a second color may include multiple emissive layers disposed in a vertical stack. Light emitting devices in which different voltages are applied to each sub-pixel or group of sub-pixels are also provided. In some configurations, the voltage to be applied to a sub-pixel may be selected based upon the number of emissive layers in the sub-pixel.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: March 10, 2020
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Julia J. Brown, Michael Stuart Weaver, Mauro Premutico
  • Publication number: 20200058898
    Abstract: A method of fabricating an organic light emitting device (OLED) on a substrate includes providing a mold having surface features, forming a substrate over the mold, fabricating an OLED over the substrate while the substrate is in the mold, and removing the mold from the substrate having the OLED fabricated thereon.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 20, 2020
    Inventors: Ruiqing Ma, Julia J. Brown
  • Publication number: 20200058902
    Abstract: A first product may be provided that comprises a substrate having a first surface, a first side, and a first edge where the first surface meets the first side; and a device disposed over the substrate, the device having a second side, where at least a first portion of the second side is disposed within 3 mm from the first edge of the substrate. The first product may further comprise a first barrier film that covers at least a portion of the first edge of the substrate, at least a portion of the first side of the substrate, and at least the first portion of the second side of the device.
    Type: Application
    Filed: October 24, 2019
    Publication date: February 20, 2020
    Inventors: Prashant MANDLIK, Ruiqing MA, Jeffrey SILVERNAIL, Julia J. BROWN, Lin HAN, Sigurd WAGNER, Luke WALSKI
  • Patent number: 10566534
    Abstract: Systems and arrangements of OVJP deposition devices are provided, in which one or more organic material crucibles are directly attached to an injection block and a print head without the need for external delivery components such as feedtubes. Each crucible may be hermetically sealed until it is attached to the injection block, allowing for a single device to provide for storage, transport, and deposition of the organic material.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: February 18, 2020
    Assignee: Universal Display Corporation
    Inventors: Matthew King, William E. Quinn, Gregory McGraw, Siddharth Harikrishna Mohan, Elliot H. Hartford, Jr., Benjamin Swedlove, Gregg Kottas, Tomasz Trojacki, Julia J. Brown
  • Publication number: 20200035761
    Abstract: Embodiments of the disclosed subject matter provide a full-color pixel arrangement for a device, the full-color pixel arrangement including a plurality of sub-pixels, each having an emissive region of a first color, where the full-color pixel arrangement comprises emissive regions having exactly one emissive color that is a red-shifted color of a deep blue sub-pixel of the plurality of sub-pixels. Embodiments of the disclosed subject matter may also provide a full-color pixel arrangement for a device, the full-color pixel arrangement including a plurality of sub-pixels, each having an emissive region of a first color, where the full-color pixel arrangement comprises emissive regions having exactly one emissive color, and where the plurality of sub-pixels comprise a light blue sub-pixel, a deep blue sub-pixel, a red sub-pixel, and a green sub-pixel.
    Type: Application
    Filed: July 18, 2019
    Publication date: January 30, 2020
    Inventors: Michael HACK, Michael Stuart WEAVER, Nicholas J. THOMPSON, Julia J. BROWN
  • Publication number: 20190386257
    Abstract: Embodiments of the disclosed subject matter provide a depositor device having a first exhaust aperture and a second exhaust aperture, and a plurality of delivery apertures disposed between the first exhaust aperture and the second exhaust aperture. A first aperture of the plurality of delivery apertures may have a first length, and a second aperture of the plurality of delivery apertures may have a second length. The first length may be longer than the second length. The device may include a third aperture of the plurality of delivery apertures which may have a third length, where the second length may be longer that the third length. The plurality of delivery apertures of the device may include three or more delivery apertures having different lengths.
    Type: Application
    Filed: June 4, 2019
    Publication date: December 19, 2019
    Inventors: William E. QUINN, Gregory MCGRAW, Gregg KOTTAS, Xin XU, Julia J. BROWN
  • Publication number: 20190386088
    Abstract: Embodiments of the disclosed subject matter provide a device having a substrate, and a plurality of unit areas of an organic light emitting diode (OLED) display disposed on the substrate. The unit areas may be repeating, area-filling subdivisions of the substrate that each have an anode and a cathode. The organic film may be disposed over portions of the device other than the unit areas. The device may include at least one pixel having a plurality of sub-pixels disposed within each of the plurality of unit areas. The at least one pixel of each of the plurality of unit areas may be covered by the cathode.
    Type: Application
    Filed: June 5, 2019
    Publication date: December 19, 2019
    Inventors: Xin XU, Gregory MCGRAW, William E. QUINN, Gregg KOTTAS, Jason PAYNTER, Julia J. BROWN
  • Publication number: 20190386216
    Abstract: Embodiments of the disclosed subject matter provide a device including a micronozzle array having separate redundant groups of depositors that each include a delivery aperture disposed between two exhaust apertures. The device may include a first row of depositors of a first redundant group, each of which may be connected in parallel to first common delivery lines and first common exhaust lines. The device may include a second row of depositors of a second redundant group, each of which is connected in parallel to second common delivery and second common exhaust lines. The first row of depositors and the second row of depositors may operate independently from one another. The device may be disposed within a deposition chamber and in proximity of a substrate.
    Type: Application
    Filed: May 1, 2019
    Publication date: December 19, 2019
    Inventors: William E. QUINN, Gregory MCGRAW, Gregg KOTTAS, Xin XU, Julia J. BROWN
  • Publication number: 20190386256
    Abstract: Systems and techniques for deposition such as via OVJP using multiple source ampules are provided. The source ampules are arranged and controlled such that carrier gas may be fed through each source ampule sequentially, thereby allowing for more continuous operation and use of materials that otherwise would be subject to thermal degradation.
    Type: Application
    Filed: June 3, 2019
    Publication date: December 19, 2019
    Inventors: William E. QUINN, Julia J. BROWN, Gregory MCGRAW, Gregg KOTTAS, William T. MAYWEATHER, III
  • Patent number: 10490774
    Abstract: A flexible AMOLED display is disclosed including an OLED stack having an anode layer, a cathode layer and an organic light emitting layer between the anode layer and the cathode layer. A backplane includes a substrate, a plurality of bus lines, and a thin film transistor array. A permeation barrier layer is positioned between the OLED stack and the backplane, and a plurality of vias connect the OLED anode layer to the backplane thin film transistor array. In one embodiment, a neutral plane of the AMOLED display crosses the permeation barrier. In one embodiment, the thickness of at least a portion of the bus lines is greater than the thickness of the cathode layer. A method of increasing the flexibility of an AMOLED display is disclosed. A method of assembling a flexible AMOLED display under a processing temperature of less than 200 degrees Celsius is also disclosed.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: November 26, 2019
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Ruiqing Ma, Julia J. Brown
  • Patent number: 10483487
    Abstract: A first product may be provided that comprises a substrate having a first surface, a first side, and a first edge where the first surface meets the first side; and a device disposed over the substrate, the device having a second side, where at least a first portion of the second side is disposed within 3 mm from the first edge of the substrate. The first product may further comprise a first barrier film that covers at least a portion of the first edge of the substrate, at least a portion of the first side of the substrate, and at least the first portion of the second side of the device.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: November 19, 2019
    Assignee: The Trustees of Princeton University
    Inventors: Prashant Mandlik, Ruiqing Ma, Jeffrey Silvernail, Julia J. Brown, Lin Han, Sigurd Wagner, Luke Walski
  • Publication number: 20190348628
    Abstract: Embodiments of the disclosed subject matter may provide a display device or display surface including at least one emissive layer and a near-infrared (NIR) emissive layer disposed in a stack arrangement between a first electrode and a second electrode, where NIR light is emitted from the NIR emissive layer through the at least one emissive layer, or visible light is emitted from the at least one emissive layer through the NIR emissive layer, and where the NIR light output by the NIR emissive layer has a peak wavelength of 740 nm-1000 nm. Embodiments of the disclosed subject matter may provide a near infrared (NIR) light source disposed behind or in front of an active-matrix organic light emitting diode (AMOLED), where the NIR light source has an area greater than 25% of an active area of the display device or display surface.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 14, 2019
    Inventors: Michael HACK, Michael Stuart WEAVER, Julia J. BROWN