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: 9112171
    Abstract: The present invention provides an OLED in which an organic thin film layer comprising a single layer or plural layers is provided between a cathode and an anode, where the organic thin film layer comprises at least one light emitting layer, and the at least one light emitting layer comprises (a) a host material represented by the following Formula (1): Ra—Ar1—Ar2—Rb (1) where Ar1, Ar2, Ra and Rb represent a substituted or unsubstituted benzene ring or a condensed aromatic hydrocarbon group selected from a substituted or unsubstituted naphthalene ring, chrysene ring, a substituted or unsubstituted fluoranthene ring, triphenylene ring, a substituted or unsubstituted phenanthrene ring, a substituted or unsubstituted benzophenanthrene ring, a substituted or unsubstituted dibenzophenanthrene ring, a substituted or unsubstituted benzotriphenylene ring, a substituted or unsubstituted benzochrysene ring, a substituted or unsubstituted picene ring and a substituted or unsubstituted benzofluoranthene ring; and (b) at l
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: August 18, 2015
    Assignees: Universal Display Corporation, Idemitsu Kosan Co., Ltd.
    Inventors: Brian D'Andrade, Julia J. Brown, Michael S. Weaver, Kazuki Nishimura, Toshihiro Iwakuma, Chishio Hosokawa, Masahiro Kawamura, Mitsunori Ito
  • Publication number: 20150221704
    Abstract: A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light.
    Type: Application
    Filed: April 14, 2015
    Publication date: August 6, 2015
    Inventors: Michael HACK, Julia J. BROWN, Michael Stuart WEAVER, Peter LEVERMORE, Woo-Young SO
  • Publication number: 20150214507
    Abstract: Devices and techniques are provided in which a transparent substrate is scored to provide a non-planar surface on one side of the substrate. An OLED is then disposed on the other side of the scored substrate and optically coupled to the substrate. The scored surface provides improvements to outcoupling of light generated by the OLED, with little or no additional thickness relative to the OLED alone.
    Type: Application
    Filed: December 23, 2014
    Publication date: July 30, 2015
    Inventors: Emory Krall, Kamala Rajan, Huiqing Pang, Gregory McGraw, William E. Quinn, Ruiqing Ma, Julia J. Brown
  • Publication number: 20150194621
    Abstract: An organic electroluminescence device utilizes a novel combination of one or more biscarbazole derivative compounds as the phosphorescent host material in combination with an organometallic phosphorescent material as a dopant in the light emitting region of the device, where the biscarbazole derivative compounds are represented by a formula (1A) or (2A) below: (1A), (2A) where A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; Xi and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3; and the organometallic phosphorescent material is a compound having a substituted chemical structure represented by the formula (4A): where each R is indepe
    Type: Application
    Filed: May 17, 2012
    Publication date: July 9, 2015
    Applicants: Universal Display Corporation, Idemitsu Kosan Co., Ltd.
    Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Hitoshi Yamamoto, Michael S. Weaver, Julia J. Brown
  • Publication number: 20150194622
    Abstract: The organic electroluminescence device utilizes a novel combination of a biscarbazole derivative compound as a phospherescent host materials and an orgaphosphorescent material as a red phosphorescent dopant material in the light emitting region of the device, where the biscarbazole derivative compound is represented by a formula (1); wherein the red phosphorescent dopant material is a phosphorescent organometallic complex having a substituted chemical structure represented by one of the partial chemical structures represented by a formulas (D1), (D2) and (D3).
    Type: Application
    Filed: June 14, 2012
    Publication date: July 9, 2015
    Applicants: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hitoshi Yamamoto, Michael S. Weaver, Julia J. Brown, Kazuki Nishimura, Toshihiro Iwakuma
  • Patent number: 9054344
    Abstract: A method of fabricating an organic light emitting device is provided. A first electrode is provided, over which the rest of the device will be fabricated. A first organic layer is deposited over the first electrode via solution processing. The first organic layer includes: i. an organic host material of the first organic layer; ii. a first organic emitting material of the first organic layer; iii. a second organic emitting material of the first organic layer; A second organic layer is deposited over and in direct contact with the first organic layer. The second organic layer includes an organic emitting material of the second organic layer. A second electrode is then deposited over the second organic layer. The device may include other layers.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: June 9, 2015
    Assignee: Universal Display Corporation
    Inventors: Kwang Ohk Cheon, Michael Inbasekaran, Julia J. Brown
  • Publication number: 20150151312
    Abstract: A selective organic emissive material deposition technique is disclosed. A charged organic emissive material may be mixed with a carrier gas and ejected towards a charged intended area of a substrate. The charge for the emissive material may be such that the organic emissive material is attracted to the charged intended area of the substrate and, accordingly, deposited selectively over the charged intended area of the substrate. Additionally, surrounding unintended areas of the substrate may be charged such that the charged organic emissive material is repelled by the unintended areas.
    Type: Application
    Filed: February 6, 2015
    Publication date: June 4, 2015
    Inventors: Michael HACK, Julia J. BROWN, Ho Kyoon CHUNG
  • Patent number: 9041297
    Abstract: Sensors and lighting components are provided that are capable of matching an emitted color to a color observed at a remote location. The sensor measures a light characteristic at a first location, and provides data to a remote lighting component, such as via a wireless connection. The lighting component is configured to emit light based upon the light characteristic, and thus is able to match an observed lighting condition. The lighting component may match the color, intensity, temperature, pattern, texture, or other characteristic of light at a remote location.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: May 26, 2015
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Paul E. Burrows, Ruiqing Ma, Jason Paynter, Michael O'Connor, Julia J. Brown
  • Publication number: 20150108461
    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: December 24, 2014
    Publication date: April 23, 2015
    Inventors: Prashant MANDLIK, Ruiqing MA, Jeffrey SILVERNAIL, Julia J. BROWN, Lin HAN, Sigurd WAGNER, Luke WALSKI
  • Publication number: 20150111330
    Abstract: Methods of fabricating a device having laterally patterned first and second sub-devices, such as subpixels of an OLED, are provided. Exemplary methods may include depositing via organic vapor jet printing (OVJP) a first organic layer of the first sub-device and a first organic layer of the second sub-device. The first organic layer of the first sub-device and the first organic layer of the second sub-device are both the same type of layer, but have different thicknesses. The type of layer is selected from an ETL, an HTL, an HIL, a spacer and a capping layer.
    Type: Application
    Filed: December 23, 2014
    Publication date: April 23, 2015
    Inventors: Siddharth HARIKRISHNA MOHAN, Paul E. BURROWS, Julia J. BROWN
  • Patent number: 9000459
    Abstract: A display includes one or more organic light emitting device panels. Each organic light emitting device panel has an array of single-color subpixel areas of different colors extending over an active area thereof arranged in a predetermined pattern by color. At least one of the subpixel areas in the predetermined pattern that would otherwise be designated as a subpixel area through which blue light is emitted based on a position thereof in the predetermined pattern being predetermined to be non-emissive. A volume of the organic light emitting device panel associated with the at least one predetermined non-emissive subpixel area is non-emissive and includes a via or a functional electronic component therein.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: April 7, 2015
    Assignee: Universal Display Corporation
    Inventors: Julia J. Brown, Michael Hack
  • Publication number: 20150090960
    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: September 30, 2013
    Publication date: April 2, 2015
    Applicant: Universal Display Corporation
    Inventors: Ruiqing Ma, Julia J. Brown
  • Patent number: 8969116
    Abstract: A selective organic emissive material deposition technique is disclosed. A charged organic emissive material may be mixed with a carrier gas and ejected towards a charged intended area of a substrate. The charge for the emissive material may be such that the organic emissive material is attracted to the charged intended area of the substrate and, accordingly, deposited selectively over the charged intended area of the substrate. Additionally, surrounding unintended areas of the substrate may be charged such that the charged organic emissive material is repelled by the unintended areas.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: March 3, 2015
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Julia J. Brown, Ho Kyoon Chung
  • Patent number: 8957579
    Abstract: Devices and fabrication methods thereof are provided which reduce image sticking and/or improve lifetime and performance of blue emissive devices. Each device may include non-common transport layers between emissive devices, one or more optical capping layers, light and deep blue emissive devices, a mixed host emissive layer, a high T1 transport layer, and/or a stacked blue device in conjunction with single emissive layer red and/or green devices. The provided structures may be used individually, in combination, or as a group in a single device.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 17, 2015
    Assignee: Universal Display Corporation
    Inventors: Michael Stuart Weaver, Michael Hack, Julia J. Brown, Mauro Premutico
  • Patent number: 8941099
    Abstract: The present invention provides an OLED in which an organic thin film layer comprising a single layer or plural layers between a cathode and an anode, wherein the organic thin film layer comprises at least one organic light emitting layer, wherein at least one light emitting layer comprises at least one host material and at least one phosphorescent emitter material, wherein the host material comprises a substituted or unsubstituted hydrocarbon compound having the chemical structure represented by the formula (A-I): formula (A-1) wherein R1 and R2 each represent independently a substituted or unsubstituted alkyl group having from 1 to about 5 carbon atoms; Ar1 represents a divalent residue of a benzene ring, a naphthalene ring, a chrysene ring, a phenanthrene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzo[a]triphenylene ring, a benzochrysene ring, a fluoranthene ring, a benzo[b]fluoranthene ring or picene ring; and Ar2 represents a monovalent residue of a naphthalene ring, a chrysene ring,
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: January 27, 2015
    Assignees: Universal Display Corporation, Idemitsu Kosan Co., Ltd.
    Inventors: Hitoshi Yamamoto, Michael S. Weaver, Julia J. Brown, Kazuki Nishimura, Toshihiro Iwakuma, Chishio Hosokawa, Toshinari Ogiwara
  • Patent number: 8940568
    Abstract: Methods of fabricating a device having laterally patterned first and second sub-devices, such as subpixels of an OLED, are provided. Exemplary methods may include depositing via organic vapor jet printing (OVJP) a first organic layer of the first sub-device and a first organic layer of the second sub-device. The first organic layer of the first sub-device and the first organic layer of the second sub-device are both the same type of layer, but have different thicknesses. The type of layer is selected from an ETL, an HTL, an HIL, a spacer and a capping layer.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: January 27, 2015
    Assignee: Universal Display Corporation
    Inventors: Siddharth Harikrishna Mohan, Paul E. Burrows, Julia J. Brown
  • Patent number: 8933468
    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: March 16, 2012
    Date of Patent: January 13, 2015
    Assignees: Princeton University Office of Technology and Trademark Licensing, Universal Display Corporation
    Inventors: Prashant Mandlik, Ruiqing Ma, Jeff Silvernail, Julia J. Brown, Lin Han, Sigurd Wagner, Luke Walski
  • Publication number: 20150001470
    Abstract: Optical components and devices are provided that include a substrate, a microlens array, and a barrier film system conformally covering the microlens array. An OLED may be optically coupled to the microlens array. The barrier film may provide protection to the microlens array or other components, without having a significant negative impact on outcoupling of light from the coupled OLED by the microlens array.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Applicant: Universal Display Corporation
    Inventors: Ruiqing Ma, Julia J. Brown, Michael Hack, Siddharth Harikrishna Mohan, Gregory McGraw
  • Publication number: 20140361270
    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: May 22, 2014
    Publication date: December 11, 2014
    Applicants: Universal Display Corporation, Kent State University
    Inventors: Yue CUI, Deng-ke YANG, Ruiqing Ma, Gregory McGraw, Julia J. Brown
  • Publication number: 20140339987
    Abstract: Sensors and lighting components are provided that are capable of matching an emitted color to a color observed at a remote location. The sensor measures a light characteristic at a first location, and provides data to a remote lighting component, such as via a wireless connection. The lighting component is configured to emit light based upon the light characteristic, and thus is able to match an observed lighting condition. The lighting component may match the color, intensity, temperature, pattern, texture, or other characteristic of light at a remote location.
    Type: Application
    Filed: June 25, 2013
    Publication date: November 20, 2014
    Inventors: Paul E. Burrows, Ruiqing Ma, Jason Paynter, Michael O'Connor, Julia J. Brown