Patents by Inventor Richard I-Heng Huang
Richard I-Heng Huang 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: 20220223094Abstract: A method and system for programming, calibrating and driving a light emitting device display, and for operating a display at a constant luminance even as some of the pixels in the display are degraded over time. The system may include extracting a time dependent parameter of a pixel for calibration. Each pixel in the display is configured to emit light when a voltage is supplied to the pixel's driving circuit, which causes a current to flow through a light emitting element. Degraded pixels are compensated by supplying their respective driving circuits with greater voltages. The display data is scaled by a compression factor less than one to reserve some voltage levels for compensating degraded pixels. As pixels become more degraded, and require additional compensation, the compression factor is decreased to reserve additional voltage levels for use in compensation.Type: ApplicationFiled: January 24, 2022Publication date: July 14, 2022Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Patent number: 11270621Abstract: A method and system for programming, calibrating and driving a light emitting device display, and for operating a display at a constant luminance even as some of the pixels in the display are degraded over time. The system may include extracting a time dependent parameter of a pixel for calibration. Each pixel in the display is configured to emit light when a voltage is supplied to the pixel's driving circuit, which causes a current to flow through a light emitting element. Degraded pixels are compensated by supplying their respective driving circuits with greater voltages. The display data is scaled by a compression factor less than one to reserve some voltage levels for compensating degraded pixels. As pixels become more degraded, and require additional compensation, the compression factor is decreased to reserve additional voltage levels for use in compensation.Type: GrantFiled: June 29, 2020Date of Patent: March 8, 2022Assignee: Ignis Innovation Inc.Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Publication number: 20200327845Abstract: A method and system for programming, calibrating and driving a light emitting device display, and for operating a display at a constant luminance even as some of the pixels in the display are degraded over time. The system may include extracting a time dependent parameter of a pixel for calibration. Each pixel in the display is configured to emit light when a voltage is supplied to the pixel's driving circuit, which causes a current to flow through a light emitting element. Degraded pixels are compensated by supplying their respective driving circuits with greater voltages. The display data is scaled by a compression factor less than one to reserve some voltage levels for compensating degraded pixels. As pixels become more degraded, and require additional compensation, the compression factor is decreased to reserve additional voltage levels for use in compensation.Type: ApplicationFiled: June 29, 2020Publication date: October 15, 2020Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Patent number: 10699624Abstract: A method and system for programming, calibrating and driving a light emitting device display, and for operating a display at a constant luminance even as some of the pixels in the display are degraded over time. The system may include extracting a time dependent parameter of a pixel for calibration. Each pixel in the display is configured to emit light when a voltage is supplied to the pixel's driving circuit, which causes a current to flow through a light emitting element. Degraded pixels are compensated by supplying their respective driving circuits with greater voltages. The display data is scaled by a compression factor less than one to reserve some voltage levels for compensating degraded pixels. As pixels become more degraded, and require additional compensation, the compression factor is decreased to reserve additional voltage levels for use in compensation.Type: GrantFiled: June 11, 2018Date of Patent: June 30, 2020Assignee: Ignis Innovation Inc.Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Patent number: 10235933Abstract: A display degradation compensation system and method for adjusting the operating conditions for pixels in an OLED display to compensate for non-uniformity or aging of the display. The system or method sets an initial value for at least one of peak luminance and an operating condition, calculates compensation values for the pixels in the display, determines the number of pixels having compensation values larger than a predetermined threshold compensation value, and if the determined number of pixels having compensation values larger than said predetermined threshold value is greater than a predetermined threshold number, adjusts the set value until said determined number of pixels is less than said predetermined threshold number.Type: GrantFiled: September 18, 2014Date of Patent: March 19, 2019Assignee: Ignis Innovation Inc.Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Publication number: 20180301077Abstract: A method and system for programming, calibrating and driving a light emitting device display, and for operating a display at a constant luminance even as some of the pixels in the display are degraded over time. The system may include extracting a time dependent parameter of a pixel for calibration. Each pixel in the display is configured to emit light when a voltage is supplied to the pixel's driving circuit, which causes a current to flow through a light emitting element. Degraded pixels are compensated by supplying their respective driving circuits with greater voltages. The display data is scaled by a compression factor less than one to reserve some voltage levels for compensating degraded pixels. As pixels become more degraded, and require additional compensation, the compression factor is decreased to reserve additional voltage levels for use in compensation.Type: ApplicationFiled: June 11, 2018Publication date: October 18, 2018Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Patent number: 10012678Abstract: A method and system for programming, calibrating and driving a light emitting device display, and for operating a display at a constant luminance even as some of the pixels in the display are degraded over time. The system may include extracting a time dependent parameter of a pixel for calibration. Each pixel in the display is configured to emit light when a voltage is supplied to the pixel's driving circuit, which causes a current to flow through a light emitting element. Degraded pixels are compensated by supplying their respective driving circuits with greater voltages. The display data is scaled by a compression factor less than one to reserve some voltage levels for compensating degraded pixels. As pixels become more degraded, and require additional compensation, the compression factor is decreased to reserve additional voltage levels for use in compensation.Type: GrantFiled: June 12, 2015Date of Patent: July 3, 2018Assignee: Ignis Innovation Inc.Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Patent number: 10013907Abstract: A method and system for programming, calibrating and driving a light emitting device display, and for operating a display at a constant luminance even as some of the pixels in the display are degraded over time. The system may include extracting a time dependent parameter of a pixel for calibration. Each pixel in the display is configured to emit light when a voltage is supplied to the pixel's driving circuit, which causes a current to flow through a light emitting element. Degraded pixels are compensated by supplying their respective driving circuits with greater voltages. The display data is scaled by a compression factor less than one to reserve some voltage levels for compensating degraded pixels. As pixels become more degraded, and require additional compensation, the compression factor is decreased to reserve additional voltage levels for use in compensation.Type: GrantFiled: August 3, 2015Date of Patent: July 3, 2018Assignee: Ignis Innovation Inc.Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Publication number: 20160104411Abstract: A method and system for programming, calibrating and driving a light emitting device display, and for operating a display at a constant luminance even as some of the pixels in the display are degraded over time. The system may include extracting a time dependent parameter of a pixel for calibration. Each pixel in the display is configured to emit light when a voltage is supplied to the pixel's driving circuit, which causes a current to flow through a light emitting element. Degraded pixels are compensated by supplying their respective driving circuits with greater voltages. The display data is scaled by a compression factor less than one to reserve some voltage levels for compensating degraded pixels. As pixels become more degraded, and require additional compensation, the compression factor is decreased to reserve additional voltage levels for use in compensation.Type: ApplicationFiled: August 3, 2015Publication date: April 14, 2016Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Publication number: 20150339977Abstract: A method and system for programming, calibrating and driving a light emitting device display, and for operating a display at a constant luminance even as some of the pixels in the display are degraded over time. The system may include extracting a time dependent parameter of a pixel for calibration. Each pixel in the display is configured to emit light when a voltage is supplied to the pixel's driving circuit, which causes a current to flow through a light emitting element. Degraded pixels are compensated by supplying their respective driving circuits with greater voltages. The display data is scaled by a compression factor less than one to reserve some voltage levels for compensating degraded pixels. As pixels become more degraded, and require additional compensation, the compression factor is decreased to reserve additional voltage levels for use in compensation.Type: ApplicationFiled: June 12, 2015Publication date: November 26, 2015Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Publication number: 20150002378Abstract: A display degradation compensation system and method for adjusting the operating conditions for pixels in an OLED display to compensate for non-uniformity or aging of the display. The system or method sets an initial value for at least one of peak luminance and an operating condition, calculates compensation values for the pixels in the display, determines the number of pixels having compensation values larger than a predetermined threshold compensation value, and if the determined number of pixels having compensation values larger than said predetermined threshold value is greater than a predetermined threshold number, adjusts the set value until said determined number of pixels is less than said predetermined threshold number.Type: ApplicationFiled: September 18, 2014Publication date: January 1, 2015Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Publication number: 20140111567Abstract: A display degradation compensation system and method for adjusting the operating conditions for pixels in an OLED display to compensate for non-uniformity or aging of the display. The system or method sets an initial value for at least one of peak luminance and an operating condition, calculates compensation values for the pixels in the display, determines the number of pixels having compensation values larger than a predetermined threshold compensation value, and if the determined number of pixels having compensation values larger than said predetermined threshold value is greater than a predetermined threshold number, adjusts the set value until said determined number of pixels is less than said predetermined threshold number.Type: ApplicationFiled: December 20, 2013Publication date: April 24, 2014Applicant: Ignis Innovation Inc.Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Publication number: 20130286055Abstract: A system and method for operating a display at a constant luminance even as some of the pixels in the display are degraded over time. Each pixel in the display is configured to emit light when a voltage is supplied to the pixel's driving circuit, which causes a current to flow through a light emitting element. Degraded pixels are compensated by supplying their respective driving circuits with greater voltages. The display data is scaled by a compression factor less than one to reserve some voltage levels for compensating degraded pixels. As pixels become more degraded, and require additional compensation, the compression factor is decreased to reserve additional voltage levels for use in compensation.Type: ApplicationFiled: May 21, 2013Publication date: October 31, 2013Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Publication number: 20110199395Abstract: A system and method for operating a display at a constant luminance even as some of the pixels in the display are degraded over time. Each pixel in the display is configured to emit light when a voltage is supplied to the pixel's driving circuit, which causes a current to flow through a light emitting element. Degraded pixels are compensated by supplying their respective driving circuits with greater voltages. The display data is scaled by a compression factor less than one to reserve some voltage levels for compensating degraded pixels. As pixels become more degraded, and require additional compensation, the compression factor is decreased to reserve additional voltage levels for use in compensation.Type: ApplicationFiled: November 15, 2010Publication date: August 18, 2011Applicant: Ignis Innovation Inc.Inventors: Arokia Nathan, Gholamreza Chaji, Stefan Alexander, Peyman Servati, Richard I-Heng Huang, Corbin Church
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Patent number: RE45291Abstract: A system and method for driving an AMOLED display is provided. The AMOLED display includes a plurality of pixel circuits. A voltage-programming scheme, a current-programming scheme or a combination thereof is applied to drive the display. Threshold shift information, and/or voltage necessary to obtain hybrid driving circuit may be acquired. A data sampling may be implemented to acquire a current/voltage relationship. A feedback operation may be implemented to correct the brightness of the pixel.Type: GrantFiled: November 26, 2013Date of Patent: December 16, 2014Assignee: Ignis Innovation Inc.Inventors: Arokia Nathan, Richard I-Heng Huang, Stefan Alexander
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Patent number: RE47257Abstract: A system and method for driving an AMOLED display is provided. The AMOLED display includes a plurality of pixel circuits. A voltage-programming scheme, a current-programming scheme or a combination thereof is applied to drive the display. Threshold shift information, and/or voltage necessary to obtain hybrid driving circuit may be acquired. A data sampling may be implemented to acquire a current/voltage relationship. A feedback operation may be implemented to correct the brightness of the pixel.Type: GrantFiled: July 9, 2014Date of Patent: February 26, 2019Assignee: Ignis Innovation Inc.Inventors: Arokia Nathan, Richard I-Heng Huang, Stefan Alexander