Patents by Inventor Gholamreza Reza Chaji

Gholamreza Reza Chaji 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).

  • Method and system for programming, calibrating and driving a light emitting device display
    Patent number: 8736524
    Abstract: A method and system for programming, calibrating and driving a light emitting device display is provided. The system may include extracting a time dependent parameter of a pixel for calibration.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: May 27, 2014
    Assignee: Ignis Innovation, Inc.
    Inventors: Arokia Nathan, Gholamreza Reza Chaji, Peyman Servati
  • Method and system for programming and driving active matrix light emitting device pixel having a controllable supply voltage
    Patent number: 8405587
    Abstract: Method and system for programming and driving active matrix light emitting device pixel is provided. The pixel is a voltage programmed pixel circuit, and has a light emitting device, a driving transistor and a storage capacitor. The pixel has a programming cycle having a plurality of operating cycles, and a driving cycle. During the programming cycle, the voltage of the connection between the OLED and the driving transistor is controlled so that the desired gate-source voltage of a driving transistor is stored in a storage capacitor.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: March 26, 2013
    Assignee: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Reza Chaji, Peyman Servati
  • METHOD AND SYSTEM FOR PROGRAMMING, CALIBRATING AND DRIVING A LIGHT EMITTING DEVICE DISPLAY
    Publication number: 20130027381
    Abstract: A method and system for programming, calibrating and driving a light emitting device display is provided. The system may include extracting a time dependent parameter of a pixel for calibration.
    Type: Application
    Filed: August 7, 2012
    Publication date: January 31, 2013
    Applicant: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Reza Chaji, Peyman Servati
  • System and driving method for active matrix light emitting device display
    Patent number: 8319712
    Abstract: Active matrix light emitting device display and its driving technique is provided. The pixel includes a light emitting device and a plurality of transistors. A capacitor may be used to store a voltage applied to a driving transistor so that a current through the light emitting device is independent of any shifts of the transistor and light emitting device characteristics. A bias data and a programming data are provided to the pixel circuit in accordance with a driving scheme.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: November 27, 2012
    Assignee: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Reza Chaji, Peyman Servati
  • Method and system for programming, calibrating and driving a light emitting device display
    Patent number: 8259044
    Abstract: A method and system for programming, calibrating and driving a light emitting device display is provided. The system may include extracting a time dependent parameter of a pixel for calibration.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: September 4, 2012
    Assignee: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Reza Chaji, Peyman Servati
  • METHOD AND SYSTEM FOR PROGRAMMING AND DRIVING ACTIVE MATRIX LIGHT EMITTING DEVICE PIXEL HAVING A CONTROLLABLE SUPPLY VOLTAGE
    Publication number: 20120007842
    Abstract: Method and system for programming and driving active matrix light emitting device pixel is provided. The pixel is a voltage programmed pixel circuit, and has a light emitting device, a driving transistor and a storage capacitor. The pixel has a programming cycle having a plurality of operating cycles, and a driving cycle. During the programming cycle, the voltage of the connection between the OLED and the driving transistor is controlled so that the desired gate-source voltage of a driving transistor is stored in a storage capacitor.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 12, 2012
    Applicant: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Reza Chaji, Peyman Servati
  • Voltage programmed pixel circuit, display system and driving method thereof
    Patent number: 8044893
    Abstract: A voltage programmed pixel circuit, display system having the pixel circuit and driving method thereof is provided. The pixel circuit includes a light emitting device, a driving transistor connected to the light emitting device and a programming circuit. The programming circuit adjusts a pixel current during a programming cycle of the pixel circuit.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: October 25, 2011
    Assignee: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Reza Chaji, Peyman Servati
  • SYSTEM AND DRIVING METHOD FOR ACTIVE MATRIX LIGHT EMITTING DEVICE DISPLAY
    Publication number: 20110134094
    Abstract: Active matrix light emitting device display and its driving technique is provided. The pixel includes a light emitting device and a plurality of transistors. A capacitor may be used to store a voltage applied to a driving transistor so that a current through the light emitting device is independent of any shifts of the transistor and light emitting device characteristics. A bias data and a programming data are provided to the pixel circuit in accordance with a driving scheme.
    Type: Application
    Filed: November 23, 2010
    Publication date: June 9, 2011
    Applicant: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Reza Chaji, Peyman Servati
  • System and driving method for active matrix light emitting device display
    Patent number: 7889159
    Abstract: Active matrix light emitting device display and its driving technique is provided. The pixel includes a light emitting device and a plurality of transistors. A capacitor may be used to store a voltage applied to a driving transistor so that a current through the light emitting device is independent of any shifts of the transistor and light emitting device characteristics. A bias data and a programming data are provided to the pixel circuit in accordance with a driving scheme.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: February 15, 2011
    Assignee: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Reza Chaji, Peyman Servati
  • METHOD AND SYSTEM FOR PROGRAMMING AND DRIVING ACTIVE MATRIX LIGHT EMITTING DEVICE PIXEL
    Publication number: 20110012883
    Abstract: Method and system for programming and driving active matrix light emitting device pixel is provided. The pixel is a voltage programmed pixel circuit, and has a light emitting device, a driving transistor and a storage capacitor. The pixel has a programming cycle having a plurality of operating cycles, and a driving cycle. During the programming cycle, the voltage of the connection between the OLED and the driving transistor is controlled so that the desired gate-source voltage of a driving transistor is stored in a storage capacitor.
    Type: Application
    Filed: August 6, 2010
    Publication date: January 20, 2011
    Applicant: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Reza Chaji, Peyman Servati
  • Method and system for programming and driving active matrix light emitting device pixel
    Patent number: 7800565
    Abstract: Method and system for programming and driving active matrix light emitting device pixel is provided. The pixel is a voltage programmed pixel circuit, and has a light emitting device, a driving transistor and a storage capacitor. The pixel has a programming cycle having a plurality of operating cycles, and a driving cycle. During the programming cycle, the voltage of the connection between the OLED and the driving transistor is controlled so that the desired gate-source voltage of a driving transistor is stored in a storage capacitor.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: September 21, 2010
    Assignee: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Reza Chaji, Peyman Servatl
  • METHOD AND SYSTEM FOR PROGRAMMING, CALIBRATING AND DRIVING A LIGHT EMITTING DEVICE DISPLAY
    Publication number: 20100033469
    Abstract: A method and system for programming, calibrating and driving a light emitting device display is provided. The system may include extracting a time dependent parameter of a pixel for calibration.
    Type: Application
    Filed: October 1, 2009
    Publication date: February 11, 2010
    Applicant: IGNIS INNOVATION INC.
    Inventors: Arokia NATHAN, Gholamreza Reza CHAJI, Peyman SERVATI
  • Method and system for programming, calibrating and driving a light emitting device display
    Patent number: 7619597
    Abstract: A method and system for programming, calibrating and driving a light emitting device display is provided. The system may include extracting a time dependent parameter of a pixel for calibration.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: November 17, 2009
    Assignee: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Reza Chaji, Peyman Servati