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).

  • Publication number: 20170084671
    Abstract: A hybrid pixel arrangement for a full-color display is provided, which includes an inorganic LED in at least one sub-pixel, and an organic emissive stack in at least one other sub-pixel. In an embodiment, a first sub-pixel is configured to emit a first color, and includes an inorganic LED, a second sub-pixel is configured to emit a second color, and includes a first portion of a first organic emissive stack configured to emit an initial color different from the first color. A third sub-pixel is configured to emit a third color different from the initial color, and includes a second portion of the first organic emissive stack, and a first color altering layer disposed in a stack with the second portion of the first organic emissive stack.
    Type: Application
    Filed: September 18, 2015
    Publication date: March 23, 2017
    Inventors: Michael HACK, Michael Stuart WEAVER, William T. MAYWEATHER, III, Julia J. BROWN, Nicholas THOMPSON
  • Patent number: 9601708
    Abstract: The OLEDs of the present invention are characterized by providing 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 bis-carbazole derivative host material; and the phosphorescent emitter material comprises a phosphorescent organometallic complex having a substituted chemical structure represented by one of the following partial chemical structures represented by the formula: LL?L?M wherein M is a metal that forms octahedral complexes, L, L?, L? are equivalent or inequivalent bidentate ligands wherein each L comprises a substituted or unsubstituted phenylpyridine ligand coordinated to M through an sp2 hybridized carbon and N; and one of L, L? and L? is inequivalent to at least one of the other two.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: March 21, 2017
    Assignees: Universal Display Corporation, Idemitsu Kosan Co., Ltd.
    Inventors: Hitoshi Yamamoto, Michael S. Weaver, Julia J. Brown, Kazuki Nishimura, Toshihiro Iwakuma, Tetsuya Inoue, Mitsunori Ito
  • Patent number: 9590017
    Abstract: Arrangements of pixel components that allow for full-color devices, while using emissive devices that use blue color altering layers in conjunction with blue emissive regions, that emit at not more than two colors, and/or that use limited number of color altering layers, are provided. Devices disclosed herein also may be achieved using simplified fabrication techniques compared to conventional side-by-side arrangements, because fewer masking steps may be required.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: March 7, 2017
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Michael Stuart Weaver, Julia J. Brown, Xin Xu
  • Patent number: 9577221
    Abstract: OLEDs containing a stacked hybrid architecture including a phosphorescent organic emissive unit and two fluorescent organic emissive units are disclosed. The stacked hybrid architecture includes a plurality of electrodes and a hybrid emissive stacked disposed between at least two of the electrodes. The stack contains at least three emissive units and at least two charge generation layers. At least one of the three emissive units is a phosphorescent organic emissive unit and at least two of the three emissive units are fluorescent organic emissive units. More specifically, the two fluorescent organic emissive units may be blue organic emissive units that emit light from the same or different color regions.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: February 21, 2017
    Assignee: Universal Display Corporation
    Inventors: Michael Stuart Weaver, Julia J. Brown
  • Patent number: 9572232
    Abstract: The device consists of measuring aspects of human activity or emotion and then communicating that information to an adjustable lighting device or electronic display (as part of a phone, tablet, computer etc) such that the color temperature (or luminance) of the display or lamp is adjusted to match the mood of the user e.g. warmer in the evening close to the end of the day, and cooler in the morning for productivity.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: February 14, 2017
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Ruiqing Ma, Emory Krall, Julia J. Brown
  • Patent number: 9559151
    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: Grant
    Filed: April 14, 2015
    Date of Patent: January 31, 2017
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Julia J. Brown, Michael Stuart Weaver, Peter Levermore, Woo-Young So
  • Publication number: 20170018732
    Abstract: A method for protecting an electronic device comprising an organic device body. The method involves the use of a hybrid layer deposited by chemical vapor deposition. The hybrid layer comprises a mixture of a polymeric material and a non-polymeric material, wherein the weight ratio of polymeric to non-polymeric material is in the range of 95:5 to 5:95, and wherein the polymeric material and the non-polymeric material are created from the same source of precursor material. Also disclosed are techniques for impeding the lateral diffusion of environmental contaminants.
    Type: Application
    Filed: January 28, 2016
    Publication date: January 19, 2017
    Inventors: Prashant Mandlik, Sigurd Wagner, Jeffrey A. Silvernail, Ruiqing Ma, Julia J. Brown, Lin Han
  • Publication number: 20160380238
    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: Application
    Filed: June 3, 2016
    Publication date: December 29, 2016
    Inventors: Ruiqing Ma, Julia J. Brown, Chaoyu Xiang, Michael Hack, Jason Paynter
  • Patent number: 9530962
    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: February 19, 2016
    Date of Patent: December 27, 2016
    Assignee: Universal Display Corporation
    Inventors: Siddharth Harikrishna Mohan, Paul E. Burrows, Julia J. Brown
  • Publication number: 20160369988
    Abstract: Devices suitable for close illumination of an object are provided. Such a device includes a highly transparent electrode and a highly reflective, weakly transmissive electrode, with other OLED layers disposed between them. During operation in close proximity to an object, the object is illuminated by the device, while still allowing a user to see through the device.
    Type: Application
    Filed: May 20, 2016
    Publication date: December 22, 2016
    Inventors: Ruiqing Ma, Jason Paynter, Jeffrey Silvernail, Julia J. Brown, Mauro Premutico
  • Publication number: 20160372705
    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: June 9, 2016
    Publication date: December 22, 2016
    Inventors: Michael Hack, Ruiqing Ma, Julia J. Brown
  • Patent number: 9502681
    Abstract: Provided is an OLED device that is rollable and has a rollable protective covering to protect the OLED when rolled. The rollable protective covering may include a single layer barrier and a plastic lid. The single layer barrier may provide permeation protection to the OLED in the OLED device. The protective covering provides mechanical protection to the OLED device when rolled. The protective covering and the OLED may be fabricated separately and assembled afterwards.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: November 22, 2016
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Julia J. Brown
  • Publication number: 20160315260
    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 space and a capping layer.
    Type: Application
    Filed: February 19, 2016
    Publication date: October 27, 2016
    Inventors: Siddharth Harikrishna Mohan, Paul E. Burrows, Julia J. Brown
  • Patent number: 9424772
    Abstract: Arrangements of pixel components that allow driving three or less of four or more sub-pixels to emit an original color signal are disclosed. A first projection of the original color signal may be projected onto the two sub-pixel's color space. The first projection may then be projected onto a second projection corresponding to the color space of a third pixel. The third pixel may be driven based on the second projection only two of the remaining at least three sub-pixels may be driven based on the third pixel being driven.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: August 23, 2016
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Michael Stuart Weaver, Xin Xu, Woo-Young So, Julia J. Brown
  • Patent number: 9412947
    Abstract: Techniques for fabricating organic light emitting devices, and devices fabricating using the disclosed techniques, are provided. In the disclosed techniques, a layer including an emissive material and a buffer material may be deposited in a single laser transfer process, such as a laser-induced thermal imaging process. The emissive and buffer materials may be deposited in discrete layers during the transfer process. Examples of buffer materials as disclosed include blocking materials, transfer materials, and the like. Additional layers may be deposited using conventional techniques or additional laser transfer processes.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 9, 2016
    Assignee: Universal Display Corporation
    Inventors: Michael Stuart Weaver, Michael Hack, Julia J. Brown
  • Publication number: 20160226022
    Abstract: In some embodiments, a first product is provided. The first product may include a substrate, a device having a device footprint disposed over the substrate, and a barrier film disposed over the substrate and substantially along a side of the device footprint. The barrier film may comprise a mixture of a polymeric material and non-polymeric material. The barrier film may have a perpendicular length that is less than or equal to 3.0 mm from the side of the device footprint.
    Type: Application
    Filed: April 11, 2016
    Publication date: August 4, 2016
    Inventors: Prashant Mandlik, Ruiqing Ma, Julia J. Brown
  • Publication number: 20160218150
    Abstract: OLED-based devices that include at least two colors of emissive regions are provided, in which one region is optically coupled to a microcavity and the other is not. Devices including pixels in which only a portion of sub-pixels within the pixel are coupled to a microcavity are provided.
    Type: Application
    Filed: January 26, 2015
    Publication date: July 28, 2016
    Inventors: Michael HACK, Michael Stuart WEAVER, Julia J. BROWN, Woo-Young SO, Candice H. BROWN
  • Patent number: 9397314
    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: Grant
    Filed: December 23, 2014
    Date of Patent: July 19, 2016
    Assignee: Universal Display Corporation
    Inventors: Emory Krall, Kamala Rajan, Huiqing Pang, Gregory McGraw, William E. Quinn, Ruiqing Ma, Julia J. Brown
  • Patent number: 9397310
    Abstract: A first device comprising a first organic light emitting device (OLED) is described. The first OLED includes an anode, a cathode and an emissive layer disposed between the anode and the cathode. The emissive layer includes a phosphorescent emissive dopant and a host material, that includes nanocrystals. The phosphorescent emissive dopant is bonded to the host material by a bridge moiety.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: July 19, 2016
    Assignee: Universal Display Corporation
    Inventors: Angang Dong, Chun Lin, Aaron T. Fafarman, Xingchen Ye, Cherie R. Kagan, Christopher B. Murray, Julia J. Brown
  • Patent number: 9385167
    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: Grant
    Filed: September 23, 2009
    Date of Patent: July 5, 2016
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Michael Hack, Julia J. Brown, Michael S. Weaver, Brian D'Andrade