Patents by Inventor Kongning Li

Kongning Li 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: 20200005713
    Abstract: Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.
    Type: Application
    Filed: September 12, 2019
    Publication date: January 2, 2020
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Patent number: 10453394
    Abstract: Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: October 22, 2019
    Assignee: Ignis Innovation Inc.
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Publication number: 20180315372
    Abstract: Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.
    Type: Application
    Filed: July 9, 2018
    Publication date: November 1, 2018
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Patent number: 10043448
    Abstract: Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: August 7, 2018
    Assignee: Ignis Innovation Inc.
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Publication number: 20180005577
    Abstract: Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.
    Type: Application
    Filed: September 15, 2017
    Publication date: January 4, 2018
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Patent number: 9792857
    Abstract: Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: October 17, 2017
    Assignee: Ignis Innovation Inc.
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Publication number: 20160232844
    Abstract: Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 11, 2016
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Patent number: 9343006
    Abstract: Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 17, 2016
    Assignee: Ignis Innovation Inc.
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Patent number: 9093019
    Abstract: A system is provided for using raw grayscale image data, representing images to be displayed in successive frames, to drive a display having pixels that include a drive transistor and an organic light emitting device. The system determines whether the raw grayscale image data for each pixel falls within a high range or a low range. Raw grayscale image data that falls within the low range is converted to higher grayscale values, and the pixels are driven with currents corresponding to the higher grayscale values during time periods that are shorter than complete frame time periods. Raw grayscale image data that falls within the high range is converted to higher grayscale values, and the pixels are driven with currents corresponding to the higher grayscale values during time periods that are shorter than complete frame time periods and different from the time periods of the low range image data.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: July 28, 2015
    Assignee: Ignis Innovations Inc.
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Publication number: 20150077446
    Abstract: Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.
    Type: Application
    Filed: November 26, 2014
    Publication date: March 19, 2015
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Patent number: 8937632
    Abstract: Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: January 20, 2015
    Assignee: Ignis Innovation Inc.
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Publication number: 20130201223
    Abstract: Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 8, 2013
    Applicant: IGNIS Innovation Inc.
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Patent number: 8471875
    Abstract: A display system includes a driver for operating a panel having a plurality of pixels arranged by a plurality of first lines and at least one second line The driver includes a driver output unit for providing to the panel a single driver output for activating the plurality of first lines, the single driver output being demultiplexed on the panel to activate each first line.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: June 25, 2013
    Assignee: Ignis Innovation Inc.
    Inventors: G. Reza Chaji, Kongning Li, Vasudha Gupta, Arokia Nathan
  • Patent number: 8031093
    Abstract: An n bit D/A decoder is formed using P-type and N-type transistor switches, instead of convention CMOS switches. Each P-type and N-type switch may be formed of fewer transistors than those used to form a CMOS switch, thereby reducing the overall transistor count. The decoder may be used to decode digital values to non-linear GAMMA corrected analog output voltages.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: October 4, 2011
    Assignee: ATI Technologies ULC
    Inventors: Kongning Li, Charles Leung, Grigori Temkine, Milivoje Aleksic, Steven Turner, Greg Vansickle, Kevin O'Neil
  • Publication number: 20110069096
    Abstract: A system is provided for using raw grayscale image data, representing images to be displayed in successive frames, to drive a display having pixels that include a drive transistor and an organic light emitting device. The system defines high and low ranges of raw grayscale image data, and determines whether the raw grayscale image data for each pixel falls within the high range or the low range. Raw grayscale image data that falls within the low range is converted to higher grayscale values, and the pixels are driven with currents corresponding to the higher grayscale values during time periods that are shorter than complete frame time periods. Raw grayscale image data that falls within the high range is converted to higher grayscale values, and the pixels are driven with currents corresponding to the higher grayscale values during time periods that are shorter than complete frame time periods and different from the time periods of the low range image data.
    Type: Application
    Filed: September 9, 2010
    Publication date: March 24, 2011
    Applicant: Ignis Innovation Inc.
    Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
  • Publication number: 20100039453
    Abstract: A display system and its driving method is provided. The system includes: a driver for operating a panel having a plurality of pixels arranged by a plurality of first lines and at least one second line, the driver including: a driver output unit for providing to the panel a single driver output for activating the plurality of first lines, the single driver output being demultiplexed on the panel to activate each first line.
    Type: Application
    Filed: July 28, 2009
    Publication date: February 18, 2010
    Applicant: IGNIS INNOVATION INC.
    Inventors: G. Reza Chaji, Kongning Li, Vasudha Gupta, Arokia Nathan
  • Publication number: 20100013689
    Abstract: An n bit D/A decoder is formed using P-type and N-type transistor switches, instead of convention CMOS switches. Each P-type and N-type switch may be formed of fewer transistors than those used to form a CMOS switch, thereby reducing the overall transistor count. The decoder may be used to decode digital values to non-linear GAMMA corrected analog output voltages.
    Type: Application
    Filed: August 31, 2007
    Publication date: January 21, 2010
    Applicant: ATI Technologies ULC
    Inventors: Kongning Li, Charles Leung, Grigori Temkine, Milivoje Aleksic, Steven Turner, Greg Vansickle, Kevin O'Neil
  • Patent number: 7385545
    Abstract: An n bit D/A decoder is formed using P-type and N-type transistor switches, instead of convention CMOS switches. Each P-type and N-type switch may be formed of fewer transistors than those used to form a CMOS switch, thereby reducing the overall transistor count. The decoder may be used to decode digital values to non-linear GAMMA corrected analog output voltages.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: June 10, 2008
    Assignee: ATI Technologies Inc.
    Inventors: Kongning Li, Charles Leung, Grigori Temkine, Milivoje Aleksic, Steven Turner, Greg Vansickle, Kevin O'Neil
  • Patent number: RE46561
    Abstract: A display system includes a driver for operating a panel having a plurality of pixels arranged by a plurality of first lines and at least one second line The driver includes a driver output unit for providing to the panel a single driver output for activating the plurality of first lines, the single driver output being demultiplexed on the panel to activate each first line.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: September 26, 2017
    Assignee: Ignis Innovation Inc.
    Inventors: Gholamreza Chaji, Kongning Li, Vasudha Gupta, Arokia Nathan
  • Patent number: RE49389
    Abstract: A display system includes a driver for operating a panel having a plurality of pixels arranged by a plurality of first lines and at least one second line The driver includes a driver output unit for providing to the panel a single driver output for activating the plurality of first lines, the single driver output being demultiplexed on the panel to activate each first line.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: January 24, 2023
    Assignee: Ignis Innovation Inc.
    Inventors: Gholamreza Chaji, Kongning Li, Vasudha Gupta, Arokia Nathan