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).
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Publication number: 20200005713Abstract: 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: ApplicationFiled: September 12, 2019Publication date: January 2, 2020Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Patent number: 10453394Abstract: 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: GrantFiled: July 9, 2018Date of Patent: October 22, 2019Assignee: Ignis Innovation Inc.Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Publication number: 20180315372Abstract: 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: ApplicationFiled: July 9, 2018Publication date: November 1, 2018Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Patent number: 10043448Abstract: 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: GrantFiled: September 15, 2017Date of Patent: August 7, 2018Assignee: Ignis Innovation Inc.Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Publication number: 20180005577Abstract: 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: ApplicationFiled: September 15, 2017Publication date: January 4, 2018Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Patent number: 9792857Abstract: 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: GrantFiled: April 15, 2016Date of Patent: October 17, 2017Assignee: Ignis Innovation Inc.Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Publication number: 20160232844Abstract: 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: ApplicationFiled: April 15, 2016Publication date: August 11, 2016Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Patent number: 9343006Abstract: 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: GrantFiled: November 26, 2014Date of Patent: May 17, 2016Assignee: Ignis Innovation Inc.Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Patent number: 9093019Abstract: 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: GrantFiled: September 9, 2010Date of Patent: July 28, 2015Assignee: Ignis Innovations Inc.Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Publication number: 20150077446Abstract: 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: ApplicationFiled: November 26, 2014Publication date: March 19, 2015Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Patent number: 8937632Abstract: 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: GrantFiled: February 3, 2012Date of Patent: January 20, 2015Assignee: Ignis Innovation Inc.Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Publication number: 20130201223Abstract: 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: ApplicationFiled: February 3, 2012Publication date: August 8, 2013Applicant: IGNIS Innovation Inc.Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Patent number: 8471875Abstract: 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: GrantFiled: July 28, 2009Date of Patent: June 25, 2013Assignee: Ignis Innovation Inc.Inventors: G. Reza Chaji, Kongning Li, Vasudha Gupta, Arokia Nathan
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Patent number: 8031093Abstract: 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: GrantFiled: August 31, 2007Date of Patent: October 4, 2011Assignee: ATI Technologies ULCInventors: Kongning Li, Charles Leung, Grigori Temkine, Milivoje Aleksic, Steven Turner, Greg Vansickle, Kevin O'Neil
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Publication number: 20110069096Abstract: 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: ApplicationFiled: September 9, 2010Publication date: March 24, 2011Applicant: Ignis Innovation Inc.Inventors: Kongning Li, Vasudha Gupta, Gholamreza Chaji, Arokia Nathan
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Publication number: 20100039453Abstract: 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: ApplicationFiled: July 28, 2009Publication date: February 18, 2010Applicant: IGNIS INNOVATION INC.Inventors: G. Reza Chaji, Kongning Li, Vasudha Gupta, Arokia Nathan
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Publication number: 20100013689Abstract: 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: ApplicationFiled: August 31, 2007Publication date: January 21, 2010Applicant: ATI Technologies ULCInventors: Kongning Li, Charles Leung, Grigori Temkine, Milivoje Aleksic, Steven Turner, Greg Vansickle, Kevin O'Neil
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Patent number: 7385545Abstract: 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: GrantFiled: August 31, 2006Date of Patent: June 10, 2008Assignee: ATI Technologies Inc.Inventors: Kongning Li, Charles Leung, Grigori Temkine, Milivoje Aleksic, Steven Turner, Greg Vansickle, Kevin O'Neil
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Patent number: RE46561Abstract: 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: GrantFiled: September 4, 2014Date of Patent: September 26, 2017Assignee: Ignis Innovation Inc.Inventors: Gholamreza Chaji, Kongning Li, Vasudha Gupta, Arokia Nathan
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Patent number: RE49389Abstract: 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: GrantFiled: August 25, 2017Date of Patent: January 24, 2023Assignee: Ignis Innovation Inc.Inventors: Gholamreza Chaji, Kongning Li, Vasudha Gupta, Arokia Nathan