Patents by Inventor Paul E. Burrows

Paul E. Burrows 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: 10243172
    Abstract: Luminaires and luminaire components are provided that may include emissive, index-matching, and/or outcoupling components that are replaceable separately from other components of the luminaire. In some embodiments, an index-matching component may include a gel sheet or pad that can be disposed between an emissive component and an outcoupling component. The index-matching component may be replaceable separately from the emissive and outcoupling components. In some embodiments, an emissive component including an OLED panel and/or an index-matching component may be replaceable separately from other components of the luminaire.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: March 26, 2019
    Assignee: Universal Display Corporation
    Inventors: Paul E. Burrows, Emory Krall, Huiqing Pang, Jason Paynter, Kamala Rajan, Ruiqing Ma, Gregory McGraw
  • Publication number: 20180029050
    Abstract: Nozzle designs which have been found to be effective in governing overspray in OVJP are provided. Aspects of the invention have been found to be effective in reducing or avoiding sudden pressure drops at the end of the nozzle close to the substrate, and may be advantageously employed in obtaining, for example, greater consistency between the nozzle outlet diameter and the deposited pattern width.
    Type: Application
    Filed: October 3, 2017
    Publication date: February 1, 2018
    Inventors: Siddharth Harikrishna Mohan, Paul E. Burrows
  • Patent number: 9871229
    Abstract: An emissive layer deposited in graded manner using a plurality of nozzles is disclosed. A mixtures ejected from the plurality of nozzles may contain varying concentrations of host-to-dopant material. The nozzles, as disclosed, may be arranged in a sequential manner such that the order of the sequence is based on varying concentration of the host-to-dopant material. The nozzles may be configured to translate relative to an area of a substrate to allow sequential deposition.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: January 16, 2018
    Assignee: Universal Display Corporation
    Inventors: Siddharth Harikrishna Mohan, Paul E. Burrows
  • Patent number: 9839940
    Abstract: A tool for depositing multilayer coatings onto a substrate. The tool includes a housing defining a vacuum chamber connected to a vacuum source, deposition stations each configured to deposit a layer of multilayer coating on the substrate, a curing station, and a contamination reduction device. At least one of the deposition stations is configured to deposit an inorganic layer, while at least one other deposition station is configured to deposit an organic layer. In one tool configuration, the substrate may travel back and forth through the tool as many times as needed to achieve the desired number of layers of multilayer coating. In another, the tool may include numerous housings adjacently spaced such that the substrate may make a single unidirectional pass. The contamination reduction device may be configured as one or more migration control chambers about at least one of the deposition stations, and further includes cooling devices, such as chillers, to reduce the presence of vaporous layer precursors.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: December 12, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Charles C. Bonham, Paul E. Burrows, Xi Chu, Gordon Lee Graff, Mark Edward Gross, Peter Maclyn Martin, Lorenza Moro, Kenneth Jeffrey Nelson, John Chris Pagano, Mac R. Zumhoff
  • Publication number: 20170309866
    Abstract: Luminaires and luminaire components are provided that may include emissive, index-matching, and/or outcoupling components that are replaceable separately from other components of the luminaire. In some embodiments, an index-matching component may include a gel sheet or pad that can be disposed between an emissive component and an outcoupling component. The index-matching component may be replaceable separately from the emissive and outcoupling components. In some embodiments, an emissive component including an OLED panel and/or an index-matching component may be replaceable separately from other components of the luminaire.
    Type: Application
    Filed: July 10, 2017
    Publication date: October 26, 2017
    Inventors: Paul E. Burrows, Emory Krall, Huiqing Pang, Jason Paynter, Kamala Rajan, Ruiqing Ma, Gregory McGraw
  • Patent number: 9741968
    Abstract: Luminaires and luminaire components are provided that may include emissive, index-matching, and/or outcoupling components that are replaceable separately from other components of the luminaire. In some embodiments, an index-matching component may include a gel sheet or pad that can be disposed between an emissive component and an outcoupling component. The index-matching component may be replaceable separately from the emissive and outcoupling components. In some embodiments, an emissive component including an OLED panel and/or an index-matching component may be replaceable separately from other components of the luminaire.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: August 22, 2017
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Paul E. Burrows, Emory Krall, Huiqing Pang, Jason Paynter, Kamala Rajan, Ruiqing Ma, Gregory McGraw
  • 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
  • Patent number: 9508940
    Abstract: Organic light emitting devices are disclosed which are comprised of a heterostructure for producing electroluminescence wherein the heterostructure is comprised of an emissive layer containing a phosphorescent dopant compound.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: November 29, 2016
    Assignees: The Trustees of Princeton University, The University of Southern California
    Inventors: Mark E. Thompson, Yujian You, Andrei Shoustikov, Scott Sibley, Paul E. Burrows, Stephen R. Forrest
  • Patent number: 9496522
    Abstract: Devices and components are provided that include a curved outcoupling component and an OLED, where the outcoupling component provides up to 100% outcoupling of light emitted by the OLED into air. The outcoupling component has an outer radius R and includes a material with a refractive index n. The OLED is in optical communication with the outcoupling component and disposed such that each emissive element of the OLED is within a distance r measured from the center of curvature of the surface at the outer radius R, such that R?r>(n?1)r.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: November 15, 2016
    Assignee: Universal Display Corporation
    Inventors: Paul E. Burrows, Ruiqing Ma, Gregory McGraw, Huiqing Pang
  • 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: 9450027
    Abstract: Systems, and methods for the design and fabrication of OLEDs, including large-area OLEDs with metal bus lines, are provided. For a given panel area dimension, target luminous emittance, OLED device structure and efficiency, and electrical resistivity and thickness of the bus line material and electrode onto which the bus lines are disposed, a bus line pattern may be designed to optimize Fill Factor (FF), Luminance Uniformity (U) and Power Loss (PL). Example designs may be to maximize FF, maximize U and minimize PL. or define minimum criteria for U and a maximum criteria for PL, and then to optimize the bus line layout to maximize FF. OLED panels including bus lines with different resistances along the bus line are also described.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: September 20, 2016
    Assignee: Universal Display Corporation
    Inventors: Huiqing Pang, Peter Levermore, Emory Krall, Kamala Rajan, Ruiqing Ma, Paul E. Burrows
  • Patent number: 9397312
    Abstract: Systems and methods for the design and fabrication of OLEDs, including high-performance large-area OLEDs, are provided. Variously described fabrication processes may be used to deposit and pattern bus lines with a smooth profile and a gradual sidewall transition. Such smooth profiles may, for example, reduce the probability of electrical shorting at the bus lines. Accordingly, in certain circumstances, an insulating layer may no longer be considered essential, and may be optionally avoided altogether. In cases where an insulating layer is not used, further enhancements in the emissive area and shelf life of the device may be achieved as well. According to aspects of the invention, bus lines such as those described herein may be deposited, and patterned, using vapor deposition such as vacuum thermal evaporation (VTE) through a shadow mask, and may avoid multiple photolithography steps.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: July 19, 2016
    Assignee: Universal Display Corporation
    Inventors: Peter Levermore, Huiqing Pang, Emory Krall, Rajan Kamala, Ruiqing Ma, Paul E. Burrows
  • Patent number: 9349955
    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: September 23, 2015
    Date of Patent: May 24, 2016
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Siddharth Harikrishna Mohan, Paul E. Burrows, Julia J. Brown
  • Patent number: 9318536
    Abstract: An organic solid state lighting system comprising multiple OLED modules connected in series is provided.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: April 19, 2016
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Paul E. Burrows, Ruiqing Ma
  • Publication number: 20160104870
    Abstract: An emissive layer deposited in graded manner using a plurality of nozzles is disclosed. A mixtures ejected from the plurality of nozzles may contain varying concentrations of host-to-dopant material. The nozzles, as disclosed, may be arranged in a sequential manner such that the order of the sequence is based on varying concentration of the host-to-dopant material. The nozzles may be configured to translate relative to an area of a substrate to allow sequential deposition.
    Type: Application
    Filed: December 17, 2015
    Publication date: April 14, 2016
    Inventors: Siddharth HARIKRISHNA MOHAN, Paul E. BURROWS
  • Patent number: 9313857
    Abstract: Embodiments may provide an extendable light source with a variable light emitting area. A first device is provided that includes a support, a first substrate movably coupled to the support, and a plurality of lighting devices disposed on the first substrate. The plurality of lighting devices includes a first portion of lighting devices and a second portion of lighting devices. The first device also includes an energizing component that is configured to selectively energize the first portion and the second portion of lighting devices based on a position of the first substrate relative to the support.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: April 12, 2016
    Assignee: Universal Display Corporation
    Inventors: Paul E. Burrows, Ruiqing Ma, Jason Paynter
  • Patent number: 9252397
    Abstract: An emissive layer deposited in graded manner using a plurality of nozzles is disclosed. A mixtures ejected from the plurality of nozzles may contain varying concentrations of host-to-dopant material. The nozzles, as disclosed, may be arranged in a sequential manner such that the order of the sequence is based on varying concentration of the host-to-dopant material. The nozzles may be configured to translate relative to an area of a substrate to allow sequential deposition.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: February 2, 2016
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Siddharth Harikrishna Mohan, Paul E. Burrows
  • Publication number: 20160013412
    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: September 23, 2015
    Publication date: January 14, 2016
    Inventors: Siddharth HARIKRISHNA MOHAN, Paul E. BURROWS, Julia J. BROWN
  • Patent number: 9178184
    Abstract: Embodiments disclosed herein provide devices having a nozzle die with one or more nozzles, each of which has one or more integrated skimmers. The use of an integrated nozzle/skimmer structure allows for higher-resolution printing in OVJP-type deposition techniques without requiring the use of a shadow mask by allowing for a relatively narrow organic material beam that can be placed at relatively high distances away from the substrate.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: November 3, 2015
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Gregory McGraw, Paul E. Burrows, Siddharth Harikrishna Mohan
  • Patent number: 9178185
    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: December 23, 2014
    Date of Patent: November 3, 2015
    Assignee: Universal Display Corporation
    Inventors: Siddharth Harikrishna Mohan, Paul E. Burrows, Julia J. Brown