Patents by Inventor Stuart Weaver

Stuart Weaver 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).

  • Three stack hybrid white OLED for enhanced efficiency and lifetime
    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
  • OLED display architecture
    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
  • High resolution low power consumption OLED display with extended lifetime
    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
  • OLED fabrication using laser transfer
    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
  • HIGH RESOLUTION LOW POWER CONSUMPTION OLED DISPLAY WITH EXTENDED LIFETIME
    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
  • High resolution low power consumption OLED display with extended lifetime
    Patent number: 9385168
    Abstract: Arrangements of pixel components that allow for full-color devices, while using emissive devices that emit at not more than two colors, and/or a 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: January 18, 2013
    Date of Patent: July 5, 2016
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Michael Stuart Weaver, Xin Xu
  • Very high resolution AMOLED display
    Patent number: 9379169
    Abstract: OLED displays having a resolution of 300 dpi, 400 dpi, or greater are provided. Devices as disclosed may use one or more transistors, such as metal oxide transistors, which have a leakage current of not more than about 10?15 A/?m. Displays having sub-pixels with a largest dimension on the order of 60 ?m are also provided.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: June 28, 2016
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Michael Stuart Weaver, Julia J. Brown, Woo-Young So
  • Reduced Image Sticking OLED Display
    Publication number: 20160171931
    Abstract: Methods of operation and devices are provided in which the operation of a full-color display is modified based upon historical luminance data that indicates an intensity at which at least one sub-pixel of the device is driven over a period of time. An expected degradation level of one or more pixel elements in the device is calculated based upon the luminance data, and video signals received by the device are modified based upon the expected degradation level to reduce image sticking and/or other undesirable effects in the device.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 16, 2016
    Inventors: Chun Hsin Liu, Michael Hack, Michael Stuart Weaver, Vadim Adamovich
  • LIFETIME OLED DISPLAY
    Publication number: 20160155378
    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: Application
    Filed: January 20, 2016
    Publication date: June 2, 2016
    Inventors: Michael Hack, Julia J. Brown, Michael Stuart Weaver, Mauro Premutico
  • Efficient white organic light emitting diodes with high color quality
    Patent number: 9331299
    Abstract: Organic light emitting devices (OLEDs) are provided that include two red emissive dopants. The two dopants may be disposed within a common organic emissive layer in an OLED, or each may be disposed in a separate layer. Configurations including multiple layers having multiple dopants are also provided, in which a first red dopant is disposed in a separate organic layer from a second red dopant, and a common dopant of another color, such as green, is disposed in each organic layer. Devices as disclosed herein are capable of providing an R9 value of at least 80, and of providing white light with a CRI of at least 80.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: May 3, 2016
    Assignee: Universal Display Corporation
    Inventors: Xin Xu, Michael Stuart Weaver
  • Lifetime OLED display
    Patent number: 9257665
    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: March 15, 2013
    Date of Patent: February 9, 2016
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Michael Hack, Julia J. Brown, Michael Stuart Weaver, Mauro Premutico
  • Low Power Consumption OLED Display
    Publication number: 20150349032
    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: January 26, 2015
    Publication date: December 3, 2015
    Inventors: Michael HACK, Julia J. BROWN, Michael Stuart WEAVER, Woo-Young SO
  • HIGH RESOLUTION LOW POWER CONSUMPTION OLED DISPLAY WITH EXTENDED LIFETIME
    Publication number: 20150349034
    Abstract: Systems and techniques are provided that allow for fabrication of full-color OLED displays that include only two colors of emissive regions and four or more sub-pixels within pixels of the device. Mask arrangements for fabricating such devices are also provided.
    Type: Application
    Filed: January 26, 2015
    Publication date: December 3, 2015
    Inventors: Michael HACK, Michael Stuart WEAVER, Julia J. BROWN, Woo-Young SO, Candice H. BROWN
  • Top Emission AMOLED Displays using Two Emissive Layers
    Publication number: 20150340410
    Abstract: Full-color pixel arrangements for use in devices such as OLED displays are provided, in which multiple sub-pixels are configured to emit different colors of light, with each sub-pixel having a different optical path length than some or all of the other sub-pixels within the pixel.
    Type: Application
    Filed: April 28, 2015
    Publication date: November 26, 2015
    Inventors: Michael HACK, Michael Stuart WEAVER, Ruiqing MA, William E. QUINN, Gregory MCGRAW
  • Lifetime OLED display
    Patent number: 9170665
    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: September 14, 2012
    Date of Patent: October 27, 2015
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Michael Hack, Julia J. Brown, Michael Stuart Weaver, Mauro Premutico
  • Efficient White Organic Light Emitting Diodes with High Color Quality
    Publication number: 20150295198
    Abstract: Organic light emitting devices (OLEDs) are provided that include two red emissive dopants. The two dopants may be disposed within a common organic emissive layer in an OLED, or each may be disposed in a separate layer. Configurations including multiple layers having multiple dopants are also provided, in which a first red dopant is disposed in a separate organic layer from a second red dopant, and a common dopant of another color, such as green, is disposed in each organic layer. Devices as disclosed herein are capable of providing an R9 value of at least 80, and of providing white light with a CRI of at least 80.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 15, 2015
    Applicant: Universal Display Corporation
    Inventors: Xin Xu, Michael Stuart Weaver
  • Triplet-triplet annihilation up-conversation for display and lighting applications
    Patent number: 9140428
    Abstract: Novel devices comprising a layer including compounds that are capable of triplet triplet annihilation up conversation (TTA-UC) and techniques for operating the same are provided. In particular, the up-conversation layer absorbs light emitted by the OLED device and emits up-converted light with shorter wavelength in response. These devices and techniques may be used to provide improved lifetime for blue emitting devices.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: September 22, 2015
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chuanjun Xia, Michael Stuart Weaver, Jason Brooks
  • NOVEL AMOLED DISPLAY ARCHITECTURE
    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
  • OLED COLOR TUNING BY DRIVING MODE VARIATION
    Publication number: 20150213747
    Abstract: Techniques, devices, and systems are provided that allow for driving a device such as an OLED in various pulsed modes in which a momentary luminance greater than an apparent luminance at which the OLED is to be driven is used. The use of one or more pulsed modes allows for the lifetime of the OLED to be extended and reduces image sticking. Pulsed modes are also provided that allow for color tuning of the device by activating different portions of one or more emissive areas of the device.
    Type: Application
    Filed: December 17, 2014
    Publication date: July 30, 2015
    Inventors: Vadim ADAMOVICH, Lech MICHALSKI, Michael Stuart WEAVER, Michael O'CONNOR
  • Low image sticking OLED display
    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