Patents by Inventor Jafar Talebzadeh
Jafar Talebzadeh 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: 20240071320Abstract: A system and method for determining the current of a pixel circuit and an organic light emitting diode (OLED). The pixel circuit is connected to a source driver by a data line. The voltage (or current) supplied to the pixel circuit by the source driver. The current of the pixel and the OLED can be measured by a readout circuit. A value of a voltage from the measured current can be extracted and provided to a processor for further processing.Type: ApplicationFiled: November 7, 2023Publication date: February 29, 2024Inventors: Jafar Talebzadeh, Ray Leerentveld
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Patent number: 11847976Abstract: A system and method for determining the current of a pixel circuit and an organic light emitting diode (OLED). The pixel circuit is connected to a source driver by a data line. The voltage (or current) supplied to the pixel circuit by the source driver. The current of the pixel and the OLED can be measured by a readout circuit. A value of a voltage from the measured current can be extracted and provided to a processor for further processing.Type: GrantFiled: September 26, 2022Date of Patent: December 19, 2023Assignee: Ignis Innovation Inc.Inventors: Jafar Talebzadeh, Ray Leerentveld
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Publication number: 20230377494Abstract: Active Matrix Organic Light Emitting Diode (AMOLED) displays, novel pixel circuits therefor, and methods of programming the pixel circuit and measuring the current of the pixel circuit and OLED thereof are disclosed. One pixel circuit includes four TFT transistors, a storage capacitor and an OLED device and is programmed with use of voltage supplied through a data line. One method measures currents of the OLED and the pixel circuit through the data line by a readout circuit.Type: ApplicationFiled: August 1, 2023Publication date: November 23, 2023Inventors: Arash MORADI, Jafar TALEBZADEH, Junhu HE, Shuenn-Jiun TANG
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Publication number: 20230360570Abstract: Active Matrix Organic Light Emitting Diode (AMOLED) displays, novel pixel circuits therefor, and methods of programming the pixel circuit and measuring the current of the pixel circuit and OLED thereof are disclosed. One pixel circuit includes four TFT transistors, a storage capacitor and an OLED device and is programmed with use of voltage supplied through a data line. One method measures currents of the OLED and the pixel circuit through the data line by a readout circuit.Type: ApplicationFiled: July 19, 2023Publication date: November 9, 2023Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Shuenn-Jiun Tang
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Patent number: 11756463Abstract: Active Matrix Organic Light Emitting Diode (AMOLED) displays, novel pixel circuits therefor, and methods of programming the pixel circuit and measuring the current of the pixel circuit and OLED thereof are disclosed. One pixel circuit includes four TFT transistors, a storage capacitor and an OLED device and is programmed with use of voltage supplied through a data line. One method measures currents of the OLED and the pixel circuit through the data line by a readout circuit.Type: GrantFiled: October 25, 2021Date of Patent: September 12, 2023Assignee: IGNIS INNOVATION INC.Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Shuenn-Jiun Tang
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Patent number: 11749143Abstract: Active Matrix Organic Light Emitting Diode (AMOLED) displays, novel pixel circuits therefor, and methods of programming the pixel circuit and measuring the current of the pixel circuit and OLED thereof are disclosed. One pixel circuit includes four TFT transistors, a storage capacitor and an OLED device and is programmed with use of voltage supplied through a data line. One method measures currents of the OLED and the pixel circuit through the data line by a readout circuit.Type: GrantFiled: November 22, 2018Date of Patent: September 5, 2023Assignee: Ignis Innovation Inc.Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Shuenn-Jiun Tang
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Publication number: 20230260460Abstract: A pixel circuit for an active matrix organic light emitting diode (AMOLED) and other active matrix displays is disclosed. The pixel circuit is programmed by the voltage supplied through a data line. An electrical current through a light emitting device for a known LED voltage and a pixel current for a pixel programed with a known data signal can be measured by a readout circuit through the data line. A 7T1C implementation enables to pre-charge the drive transistor to a reference voltage in each drive cycle, and to pre-set the light emitting device to a reference voltage prior to emission in each cycle.Type: ApplicationFiled: April 20, 2023Publication date: August 17, 2023Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang
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Patent number: 11663975Abstract: A pixel circuit for an active matrix organic light emitting diode (AMOLED) and other active matrix displays is disclosed. The pixel circuit is programmed by the voltage supplied through a data line. An electrical current through a light emitting device for a known LED voltage and a pixel current for a pixel programed with a known data signal can be measured by a readout circuit through the data line. A 7T1C implementation enables to pre-charge the drive transistor to a reference voltage in each drive cycle, and to pre-set the light emitting device to a reference voltage prior to emission in each cycle.Type: GrantFiled: June 20, 2022Date of Patent: May 30, 2023Assignee: Ignis Innovation Inc.Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang
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Publication number: 20230008299Abstract: A system and method for determining the current of a pixel circuit and an organic light emitting diode (OLED). The pixel circuit is connected to a source driver by a data line. The voltage (or current) supplied to the pixel circuit by the source driver. The current of the pixel and the OLED can be measured by a readout circuit. A value of a voltage from the measured current can be extracted and provided to a processor for further processing.Type: ApplicationFiled: September 26, 2022Publication date: January 12, 2023Inventors: Jafar Talebzadeh, Ray Leerentveld
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Patent number: 11488541Abstract: A system and method for determining the current of a pixel circuit and an organic light emitting diode (OLED). The pixel circuit is connected to a source driver by a data line. The voltage (or current) supplied to the pixel circuit by the source driver. The current of the pixel and the OLED can be measured by a readout circuit. A value of a voltage from the measured current can be extracted and provided to a processor for further processing.Type: GrantFiled: March 18, 2021Date of Patent: November 1, 2022Assignee: IGNIS INNOVATION INC.Inventors: Jafar Talebzadeh, Ray Leerentveld
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Publication number: 20220319431Abstract: A pixel circuit for an active matrix organic light emitting diode (AMOLED) and other active matrix displays is disclosed. The pixel circuit is programmed by the voltage supplied through a data line. An electrical current through a light emitting device for a known LED voltage and a pixel current for a pixel programed with a known data signal can be measured by a readout circuit through the data line. A 7T1C implementation enables to pre-charge the drive transistor to a reference voltage in each drive cycle, and to pre-set the light emitting device to a reference voltage prior to emission in each cycle.Type: ApplicationFiled: June 20, 2022Publication date: October 6, 2022Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang
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Patent number: 11404004Abstract: A pixel circuit for an active matrix organic light emitting diode (AMOLED) and other active matrix displays is disclosed. The pixel circuit is programmed by the voltage supplied through a data line. An electrical current through a light emitting device for a known LED voltage and a pixel current for a pixel programed with a known data signal can be measured by a readout circuit through the data line. A 7T1C implementation enables to pre-charge the drive transistor to a reference voltage in each drive cycle, and to pre-set the light emitting device to a reference voltage prior to emission in each cycle.Type: GrantFiled: September 10, 2020Date of Patent: August 2, 2022Assignee: Ignis Innovation Inc.Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang
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Publication number: 20220044606Abstract: Active Matrix Organic Light Emitting Diode (AMOLED) displays, novel pixel circuits therefor, and methods of programming the pixel circuit and measuring the current of the pixel circuit and OLED thereof are disclosed. One pixel circuit includes four TFT transistors, a storage capacitor and an OLED device and is programmed with use of voltage supplied through a data line. One method measures currents of the OLED and the pixel circuit through the data line by a readout circuit.Type: ApplicationFiled: October 25, 2021Publication date: February 10, 2022Inventors: Arash MORADI, Jafar TALEBZADEH, Junhu HE, Shuenn-Jiun TANG
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Patent number: 11189201Abstract: Active Matrix Organic Light Emitting Diode (AMOLED) displays, novel pixel circuits therefor, and methods of programming the pixel circuit and measuring the current of the pixel circuit and OLED thereof are disclosed. One pixel circuit includes four TFT transistors, a storage capacitor and an OLED device and is programmed with use of voltage supplied through a data line. One method measures currents of the OLED and the pixel circuit through the data line by a readout circuit.Type: GrantFiled: November 22, 2018Date of Patent: November 30, 2021Assignee: Ignis Innovation Inc.Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Shuenn-Jiun Tang
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Publication number: 20210210024Abstract: A system and method for determining the current of a pixel circuit and an organic light emitting diode (OLED). The pixel circuit is connected to a source driver by a data line. The voltage (or current) supplied to the pixel circuit by the source driver. The current of the pixel and the OLED can be measured by a readout circuit. A value of a voltage from the measured current can be extracted and provided to a processor for further processing.Type: ApplicationFiled: March 18, 2021Publication date: July 8, 2021Inventors: Jafar Talebzadeh, Ray Leerentveld
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Patent number: 10971078Abstract: A system and method for determining the current of a pixel circuit and an organic light emitting diode (OLED). The pixel circuit is connected to a source driver by a data line. The voltage (or current) supplied to the pixel circuit by the source driver. The current of the pixel and the OLED can be measured by a readout circuit. A value of a voltage from the measured current can be extracted and provided to a processor for further processing.Type: GrantFiled: July 5, 2018Date of Patent: April 6, 2021Assignee: Ignis Innovation Inc.Inventors: Jafar Talebzadeh, Ray Leerentveld
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Patent number: 10943540Abstract: Display systems including novel Active Matrix Organic Light Emitting Diode (AMOLED) displays with controllable pixel-driver connections and the measuring of pixel voltage or current while controlling the controllable pixel-driver connections are disclosed. A single driver node is connected to a first node of a pixel, while a second connection from the single driver node to a second node of the pixel is disconnected using at least one peripheral controllable switch.Type: GrantFiled: April 11, 2019Date of Patent: March 9, 2021Assignee: Ignis Innovation Inc.Inventors: Qing Jiang, Junhu He, Hongxin Liu, Shuenn-Jiun Tang, Jafar Talebzadeh
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Publication number: 20200410938Abstract: A pixel circuit for an active matrix organic light emitting diode (AMOLED) and other active matrix displays is disclosed. The pixel circuit is programmed by the voltage supplied through a data line. An electrical current through a light emitting device for a known LED voltage and a pixel current for a pixel programed with a known data signal can be measured by a readout circuit through the data line. A 7T1C implementation enables to pre-charge the drive transistor to a reference voltage in each drive cycle, and to pre-set the light emitting device to a reference voltage prior to emission in each cycle.Type: ApplicationFiled: September 10, 2020Publication date: December 31, 2020Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang
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Patent number: 10803804Abstract: A pixel circuit for an active matrix organic light emitting diode (AMOLED) and other active matrix displays is disclosed. The pixel circuit is programmed by the voltage supplied through a data line. An electrical current through a light emitting device for a known LED voltage and a pixel current for a pixel programmed with a known data signal can be measured by a readout circuit through the data line. A 7T1C implementation enables to pre-charge the drive transistor to a reference voltage in each drive cycle, and to pre-set the light emitting device to a reference voltage prior to emission in each cycle.Type: GrantFiled: October 17, 2018Date of Patent: October 13, 2020Assignee: Ignis Innovation Inc.Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang
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Publication number: 20200219447Abstract: Each pixel circuit in a display system includes an incident light detector circuit including a photodetector, and a switch, for measuring the luminance emitted by each light emitting device. Light detector control signals address the light detector circuits sequentially, one row at a time. The light detector circuits transmit a light detector current signal corresponding to the luminance of the corresponding light emitting device to a corresponding current integrator for conversion into a corresponding light detector voltage signal. Since a plurality of the light detector (current or voltage) signals are transmitted simultaneously, a multiplexer is provided for selecting one light detector (current or voltage) signal at a time for transmission to an analog to digital converter, which converts each light detector voltage signal into a digital signal. The digital signals may then be sent to a digital controller for modifying selected programming signals to pixels illustrating degradation.Type: ApplicationFiled: September 30, 2019Publication date: July 9, 2020Inventors: Jafar Talebzadeh, Shuenn-Jiun Tang