Patents by Inventor Woo-Young So

Woo-Young So 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: 20190081269
    Abstract: Emissive layer structures for organic emissive devices and emissive devices containing such structures are provided. The emissive layer includes one or more sub-layers or similar regions. A fluorescent emitter and two compounds that may form an exciplex are distributed within the sub-layers so as to enhance Forster transitions from the exciplex to the fluorescent acceptor and suppress undesirable Dexter transitions from the exciplex to the fluorescent acceptor.
    Type: Application
    Filed: August 24, 2018
    Publication date: March 14, 2019
    Inventors: Woo-Young SO, Nicholas J. THOMPSON, Jerald FELDMAN
  • Patent number: 10229956
    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: Grant
    Filed: January 26, 2015
    Date of Patent: March 12, 2019
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Michael Stuart Weaver, Julia J. Brown, Woo-Young So, Candice H. Brown
  • Patent number: 10192936
    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: October 30, 2018
    Date of Patent: January 29, 2019
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Julia J. Brown, Michael Stuart Weaver, Peter Levermore, Woo-Young So
  • Patent number: 10177201
    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: January 13, 2017
    Date of Patent: January 8, 2019
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Julia J. Brown, Michael Stuart Weaver, Peter Levermore, Woo-Young So
  • Publication number: 20170287987
    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: October 5, 2017
    Inventors: Michael HACK, Michael Stuart WEAVER, Julia J. BROWN, Woo-Young SO, Candice H. BROWN
  • Publication number: 20170229520
    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: August 10, 2017
    Inventors: Michael HACK, Michael Stuart WEAVER, Julia J. BROWN, Woo-Young SO, Candice H. BROWN
  • Patent number: 9653691
    Abstract: Novel molecules are provided that include a sensitizer group, an acceptor group, and an electron-transfer barrier that suppresses triplet-triplet energy transfer between the sensitizer group and the acceptor group. Organic light emitting devices (OLEDs) that include a layer including these novel molecules are also provided. These devices may be used to provide highly efficient OLEDs with longer operational lifetime.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: May 16, 2017
    Assignee: Universal Display Corporation
    Inventors: Woo-Young So, Jui-Yi Tsai
  • Publication number: 20170133439
    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: January 13, 2017
    Publication date: May 11, 2017
    Inventors: Michael Hack, Julia J. Brown, Michael Stuart Weaver, Peter Levermore, Woo-Young So
  • 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
  • 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
  • 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: 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
  • 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
  • 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
  • Patent number: 9123667
    Abstract: Embodiments described herein may provide for devices comprising a power efficient RGBW display. In some embodiments, a first device may be provided. The first device may include at least one pixel. The pixel may include a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. The first sub-pixel may include a first color filter in optical communication with a first organic light emitting device. The second sub-pixel may include a second color filter in optical communication with a second organic light emitting device. The third sub-pixel may include a third color filter in optical communication with a third organic light emitting device. The fourth sub-pixel may include a fourth organic light emitting device and emits near white light. At least one of the first sub-pixel or the second sub-pixel may include a color conversion layer in optical communication with the first or second organic light emitting device.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: September 1, 2015
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Woo-Young So, Michael Weaver
  • 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
  • Patent number: 8902245
    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. A method of displaying an image on such a display is also provided, where the image signal may be in a format designed for use with a three sub-pixel architecture, and the method involves conversion to a format usable with the four sub-pixel architecture.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: December 2, 2014
    Assignee: Universal Display Corporation
    Inventor: Woo-Young So
  • Publication number: 20140327709
    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: Application
    Filed: July 17, 2014
    Publication date: November 6, 2014
    Inventors: Michael Hack, Michael Stuart Weaver, Xin Xu, Woo-Young So, Julia J. Brown
  • Publication number: 20140158993
    Abstract: Novel molecules are provided that include a sensitizer group, an acceptor group, and an electron-transfer barrier that suppresses triplet-triplet energy transfer between the sensitizer group and the acceptor group. Organic light emitting devices (OLEDs) that include a layer including these novel molecules are also provided. These devices may be used to provide highly efficient OLEDs with longer operational lifetime.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 12, 2014
    Inventors: Woo-Young SO, Jui-Yi TSAI
  • Publication number: 20140077163
    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: Application
    Filed: September 14, 2012
    Publication date: March 20, 2014
    Inventors: Michael Hack, Michael Stuart Weaver, Julia J. Brown, Woo-Young So