Patents by Inventor Junhu He

Junhu He 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: 20230377494
    Abstract: 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: Application
    Filed: August 1, 2023
    Publication date: November 23, 2023
    Inventors: Arash MORADI, Jafar TALEBZADEH, Junhu HE, Shuenn-Jiun TANG
  • Publication number: 20230360570
    Abstract: 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: Application
    Filed: July 19, 2023
    Publication date: November 9, 2023
    Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Shuenn-Jiun Tang
  • Publication number: 20230298518
    Abstract: What is disclosed are systems and methods for compensating for display OLED degradation. Correction factors k for OLED degradation of each sub-pixel is modelled and tracked based on grey level, temperature, and time, and used to correct image data provided to an OLED display.
    Type: Application
    Filed: May 24, 2023
    Publication date: September 21, 2023
    Inventors: Shuenn-Jiun Tang, Junhu He, Tong Liu, Gabriel Franklin Yano de Sousa
  • Patent number: 11756463
    Abstract: 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: Grant
    Filed: October 25, 2021
    Date of Patent: September 12, 2023
    Assignee: IGNIS INNOVATION INC.
    Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Shuenn-Jiun Tang
  • Patent number: 11749143
    Abstract: 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: Grant
    Filed: November 22, 2018
    Date of Patent: September 5, 2023
    Assignee: Ignis Innovation Inc.
    Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Shuenn-Jiun Tang
  • Publication number: 20230260460
    Abstract: 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: Application
    Filed: April 20, 2023
    Publication date: August 17, 2023
    Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang
  • Patent number: 11694615
    Abstract: What is disclosed are systems and methods for compensating for display OLED degradation. Correction factors k for OLED degradation of each sub-pixel is modelled and tracked based on grey level, temperature, and time, and used to correct image data provided to an OLED display.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: July 4, 2023
    Assignee: Ignis Innovation Inc.
    Inventors: Shuenn-Jiun Tang, Junhu He, Tong Liu, Gabriel Franklin Yano de Sousa
  • Patent number: 11663975
    Abstract: 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: Grant
    Filed: June 20, 2022
    Date of Patent: May 30, 2023
    Assignee: Ignis Innovation Inc.
    Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang
  • Publication number: 20220319431
    Abstract: 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: Application
    Filed: June 20, 2022
    Publication date: October 6, 2022
    Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang
  • Patent number: 11404004
    Abstract: 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: Grant
    Filed: September 10, 2020
    Date of Patent: August 2, 2022
    Assignee: Ignis Innovation Inc.
    Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang
  • Publication number: 20220157237
    Abstract: What is disclosed are systems and methods for compensating for display OLED degradation. Correction factors k for OLED degradation of each sub-pixel is modelled and tracked based on grey level, temperature, and time, and used to correct image data provided to an OLED display.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 19, 2022
    Inventors: Shuenn-Jiun Tang, Junhu He, Tong Liu, Gabriel Franklin Yano de Sousa
  • Patent number: 11334366
    Abstract: A method and device are for recognizing an apparatuses and computer readable storage medium and program are provided. In an embodiment, the method includes reading a combined sequence table including candidate device information, candidate communication parameters and historical occurrence numbers of combinations of the candidate device information and the candidate communication parameters for each candidate device information; determining priority levels of the combinations according to the historical occurrence numbers; and determining a current combination according to the priority levels, sending a message to the apparatus to be recognized by using a candidate communication parameter in the current combination, and determining whether the current combination is the correct combination capable of establishing a communication with the apparatus to be recognized according to a feedback from the apparatus to be recognized.
    Type: Grant
    Filed: September 30, 2018
    Date of Patent: May 17, 2022
    Assignee: Siemens Aktiengesellschaft
    Inventor: Junhu He
  • Patent number: 11276347
    Abstract: What is disclosed are systems and methods for compensating for display OLED degradation. Correction factors k for OLED degradation of each sub-pixel is modelled and tracked based on grey level, temperature, and time, and used to correct image data provided to an OLED display.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: March 15, 2022
    Assignee: Ignis Innovation Inc.
    Inventors: Shuenn-Jiun Tang, Junhu He
  • Patent number: 11276348
    Abstract: What is disclosed are systems and methods for compensating for display OLED degradation. Correction factors k for OLED degradation of each sub-pixel is modelled and tracked based on grey level, temperature, and time, and used to correct image data provided to an OLED display.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: March 15, 2022
    Assignee: Ignis Innovation Inc.
    Inventors: Shuenn-Jiun Tang, Junhu He, Tong Liu, Gabriel Franklin Yano de Sousa
  • Publication number: 20220044606
    Abstract: 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: Application
    Filed: October 25, 2021
    Publication date: February 10, 2022
    Inventors: Arash MORADI, Jafar TALEBZADEH, Junhu HE, Shuenn-Jiun TANG
  • Patent number: 11189201
    Abstract: 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: Grant
    Filed: November 22, 2018
    Date of Patent: November 30, 2021
    Assignee: Ignis Innovation Inc.
    Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Shuenn-Jiun Tang
  • Publication number: 20210311746
    Abstract: A method and device are for recognizing an apparatuses and computer readable storage medium and program are provided. In an embodiment, the method includes reading a combined sequence table including candidate device information, candidate communication parameters and historical occurrence numbers of combinations of the candidate device information and the candidate communication parameters for each candidate device information; determining priority levels of the combinations according to the historical occurrence numbers; and determining a current combination according to the priority levels, sending a message to the apparatus to be recognized by using a candidate communication parameter in the current combination, and determining whether the current combination is the correct combination capable of establishing a communication with the apparatus to be recognized according to a feedback from the apparatus to be recognized.
    Type: Application
    Filed: September 30, 2018
    Publication date: October 7, 2021
    Applicant: Siemens Aktiengesellschaft
    Inventor: Junhu HE
  • Patent number: 10943540
    Abstract: 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: Grant
    Filed: April 11, 2019
    Date of Patent: March 9, 2021
    Assignee: Ignis Innovation Inc.
    Inventors: Qing Jiang, Junhu He, Hongxin Liu, Shuenn-Jiun Tang, Jafar Talebzadeh
  • Publication number: 20200410938
    Abstract: 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: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang
  • Patent number: 10803804
    Abstract: 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: Grant
    Filed: October 17, 2018
    Date of Patent: October 13, 2020
    Assignee: Ignis Innovation Inc.
    Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang