Patents by Inventor Chi-Fu Tsao

Chi-Fu Tsao 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).

  • Patent number: 11430380
    Abstract: The present disclosure relates to a pixel circuit including a light emitting element, a driving circuit, a first data storage circuit and a second data storage circuit. The driving circuit is electrically coupled to the light emitting element. The first data storage circuit is electrically coupled to the driving circuit, and is configured to transmit a first data signal to the driving circuit during a first frame period, so that the driving circuit drives the light emitting element according to the first data signal. The second data storage circuit is electrically coupled to the driving circuit, and is configured to receive a second data signal during the first frame period.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: August 30, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Po-Chun Lai, Wei-Ting Wu, Wei-Jen Chen, Chi-Fu Tsao, Yung-Chih Chen
  • Publication number: 20220020317
    Abstract: The present disclosure relates to a pixel circuit including a light emitting element, a driving circuit, a first data storage circuit and a second data storage circuit. The driving circuit is electrically coupled to the light emitting element. The first data storage circuit is electrically coupled to the driving circuit, and is configured to transmit a first data signal to the driving circuit during a first frame period, so that the driving circuit drives the light emitting element according to the first data signal. The second data storage circuit is electrically coupled to the driving circuit, and is configured to receive a second data signal during the first frame period.
    Type: Application
    Filed: July 6, 2021
    Publication date: January 20, 2022
    Inventors: Po-Chun LAI, Wei-Ting WU, Wei-Jen CHEN, Chi-Fu TSAO, Yung-Chih CHEN
  • Patent number: 10332452
    Abstract: An OLED panel includes a data driver and an AMOLED. The data driver receives an input voltage and the data driver may generate a data output signal. The AMOLED may receive a positive supply voltage and a negative supply voltage and emit light according to the data output signal. In addition, the input voltage and the positive supply voltage are substantially the same.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: June 25, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Tsang-Hong Wang, Chien-Jen Chen, Chi-Fu Tsao, Yi-Yo Dai
  • Patent number: 10204552
    Abstract: A light-emitting diode device control method includes using a reset voltage source to reset a control terminal of a driving-transistor of the light-emitting diode device; compensating the control terminal of the driving-transistor to a compensation voltage level; resetting a first terminal of the driving transistor to a target voltage level so as to increase a voltage difference between the first terminal and a second terminal of the driving transistor; and the driving transistor providing a driving current for driving a light-emitting diode of the light-emitting diode device to emit light.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: February 12, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Sen-Chuan Hung, Chi-Fu Tsao
  • Publication number: 20180240406
    Abstract: An OLED panel includes a data driver and an AMOLED. The data driver receives an input voltage and the data driver may generate a data output signal. The AMOLED may receive a positive supply voltage and a negative supply voltage and emit light according to the data output signal. In addition, the input voltage and the positive supply voltage are substantially the same.
    Type: Application
    Filed: September 29, 2017
    Publication date: August 23, 2018
    Inventors: Tsang-Hong WANG, Chien-Jen Chen, Chi-Fu Tsao, Yi-Yo Dai
  • Publication number: 20180190177
    Abstract: A light-emitting diode device control method includes using a reset voltage source to reset a control terminal of a driving-transistor of the light-emitting diode device; compensating the control terminal of the driving-transistor to a compensation voltage level; resetting a first terminal of the driving transistor to a target voltage level so as to increase a voltage difference between the first terminal and a second terminal of the driving transistor; and the driving transistor providing a driving current for driving a light-emitting diode of the light-emitting diode device to emit light.
    Type: Application
    Filed: January 18, 2017
    Publication date: July 5, 2018
    Inventors: Sen-Chuan HUNG, Chi-Fu TSAO
  • Patent number: 9679510
    Abstract: A display apparatus includes a pixel array, a data line and a data driver. The pixel array has adjacent first and second pixels disposed in different rows. The data line transmits first and second pixel voltages to be written into the first and second pixels respectively. The first and second pixel voltages are employed to illustrate a same frame. The data driver is utilized for generating the first and second pixel voltages furnished to the data line based on input image data. The data driver includes a voltage analysis unit and a voltage setting unit. The voltage analysis unit is used for calculating a voltage difference between the first and second pixel voltages, and for comparing the voltage difference with a preset value so as to generate a control signal. The voltage setting unit is utilized for setting the voltage of the data line according to the control signal.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: June 13, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Huan-Hsin Li, Yu-Jen Chen, De-Zhang Peng, Chi-Fu Tsao
  • Publication number: 20150364074
    Abstract: A display apparatus includes a pixel array, a data line and a data driver. The pixel array has adjacent first and second pixels disposed in different rows. The data line transmits first and second pixel voltages to be written into the first and second pixels respectively. The first and second pixel voltages are employed to illustrate a same frame. The data driver is utilized for generating the first and second pixel voltages furnished to the data line based on input image data. The data driver includes a voltage analysis unit and a voltage setting unit. The voltage analysis unit is used for calculating a voltage difference between the first and second pixel voltages, and for comparing the voltage difference with a preset value so as to generate a control signal. The voltage setting unit is utilized for setting the voltage of the data line according to the control signal.
    Type: Application
    Filed: August 4, 2015
    Publication date: December 17, 2015
    Inventors: Huan-Hsin Li, Yu-Jen Chen, De-Zhang Peng, Chi-Fu Tsao
  • Publication number: 20130050172
    Abstract: A display apparatus includes a pixel array, a data line and a data driver. The pixel array has adjacent first and second pixels disposed in different rows. The data line transmits first and second pixel voltages to be written into the first and second pixels respectively. The first and second pixel voltages are employed to illustrate a same frame. The data driver is utilized for generating the first and second pixel voltages furnished to the data line based on input image data. The data driver includes a voltage analysis unit and a voltage setting unit. The voltage analysis unit is used for calculating a voltage difference between the first and second pixel voltages, and for comparing the voltage difference with a preset value so as to generate a control signal. The voltage setting unit is utilized for setting the voltage of the data line according to the control signal.
    Type: Application
    Filed: May 2, 2012
    Publication date: February 28, 2013
    Inventors: Huan-Hsin Li, Yu-Jen Chen, De-Zhang Peng, Chi-Fu Tsao