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).
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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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Publication number: 20230298518Abstract: 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: ApplicationFiled: May 24, 2023Publication date: September 21, 2023Inventors: Shuenn-Jiun Tang, Junhu He, Tong Liu, Gabriel Franklin Yano de Sousa
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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: 11694615Abstract: 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: GrantFiled: February 4, 2022Date of Patent: July 4, 2023Assignee: Ignis Innovation Inc.Inventors: Shuenn-Jiun Tang, Junhu He, Tong Liu, Gabriel Franklin Yano de Sousa
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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: 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: 20220157237Abstract: 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: ApplicationFiled: February 4, 2022Publication date: May 19, 2022Inventors: Shuenn-Jiun Tang, Junhu He, Tong Liu, Gabriel Franklin Yano de Sousa
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Patent number: 11334366Abstract: 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: GrantFiled: September 30, 2018Date of Patent: May 17, 2022Assignee: Siemens AktiengesellschaftInventor: Junhu He
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Patent number: 11276347Abstract: 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: GrantFiled: July 18, 2019Date of Patent: March 15, 2022Assignee: Ignis Innovation Inc.Inventors: Shuenn-Jiun Tang, Junhu He
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Patent number: 11276348Abstract: 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: GrantFiled: September 11, 2019Date of Patent: March 15, 2022Assignee: Ignis Innovation Inc.Inventors: Shuenn-Jiun Tang, Junhu He, Tong Liu, Gabriel Franklin Yano de Sousa
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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: 20210311746Abstract: 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: ApplicationFiled: September 30, 2018Publication date: October 7, 2021Applicant: Siemens AktiengesellschaftInventor: Junhu HE
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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