Patents by Inventor Yueh-Pao Lee

Yueh-Pao Lee 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: 7443112
    Abstract: The present invention uses one or more transformers disposed between an inverter driver to drive a plurality of lamps. Each transformer has a first coil and a second coil magnetically coupled to each other. Each of the first and second coils has an input end and an output end. The input end of the first coil is operatively connected to the input end of the second coil for receiving an input current. Each of the first and second coils has a capacitor connected between the input and output ends. The output ends of the first and second coils are used to provide output current in two separate current paths. As such, the output end of a transformer can be separately connected to the input end of two lamps or two such transformers.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: October 28, 2008
    Assignee: Au Optronics Corporation
    Inventors: Chin-Der Wey, Yi-Chun Yeh, Chia-Hung Sun, Yueh-Pao Lee
  • Patent number: 7358684
    Abstract: A driving circuit uses a plurality of transformers to provide currents for driving a plurality of LEDs associated with a plurality of current paths. Each transformer has two induction coils with a coil turn ratio between to the number of turns in each induction coil. One induction coil is used to provide an output current to a different current path and the other induction coil is connected to the corresponding induction coil of other transformers for forming a current loop. The output current of each transformer has a relationship with the output current of the other transformers depending on the coil turn ratios of the connected transformers. LEDs in red, blue and green colors can be connected to different current paths so that the brightness of the LEDs in each color can be determined by the current in a current path.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: April 15, 2008
    Assignee: AU Optronics Corporation
    Inventors: Chin-Der Wey, Ya-Yun Yu, Hsien-Jen Li, Yueh-Pao Lee
  • Publication number: 20070273303
    Abstract: The present invention uses one or more transformers disposed between an inverter driver to drive a plurality of lamps. Each transformer has a first coil and a second coil magnetically coupled to each other. Each of the first and second coils has an input end and an output end. The input end of the first coil is operatively connected to the input end of the second coil for receiving an input current. Each of the first and second coils has a capacitor connected between the input and output ends. The output ends of the first and second coils are used to provide output current in two separate current paths. As such, the output end of a transformer can be separately connected to the input end of two lamps or two such transformers.
    Type: Application
    Filed: August 3, 2007
    Publication date: November 29, 2007
    Inventors: Chin-Der Wey, Yi-Chun Yeh, Chia-Hung Sun, Yueh-Pao Lee
  • Patent number: 7271549
    Abstract: The present invention uses one or more transformers disposed between an inverter driver to drive a plurality of lamps. Each transformer has a first coil and a second coil magnetically coupled to each other. Each of the first and second coils has an input end and an output end. The input end of the first coil is operatively connected to the input end of the second coil for receiving an input current. Each of the first and second coils has a capacitor connected between the input and output ends. The output ends of the first and second coils are used to provide output current in two separate current paths. As such, the output end of a transformer can be separately connected to the input end of two lamps or two such transformers.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: September 18, 2007
    Assignee: AU Optronics Corporation
    Inventors: Chin-Der Wey, Yi-Chun Yeh, Chia-Hung Sun, Yueh-Pao Lee
  • Publication number: 20070152606
    Abstract: A driving circuit uses a plurality of transformers to provide currents for driving a plurality of LEDs associated with a plurality of current paths. Each transformer has two induction coils with a coil turn ratio between to the number of turns in each induction coil. One induction coil is used to provide an output current to a different current path and the other induction coil is connected to the corresponding induction coil of other transformers for forming a current loop. The output current of each transformer has a relationship with the output current of the other transformers depending on the coil turn ratios of the connected transformers. LEDs in red, blue and green colors can be connected to different current paths so that the brightness of the LEDs in each color can be determined by the current in a current path.
    Type: Application
    Filed: February 15, 2007
    Publication date: July 5, 2007
    Inventors: Chin-Der Wey, Ya-Yun Yu, Hsien-Jen Li, Yueh-Pao Lee
  • Patent number: 7196483
    Abstract: A driving circuit uses a plurality of transformers to provide currents for driving a plurality of LEDs associated with a plurality of current paths. Each transformer has two induction coils with a coil turn ratio between to the number of turns in each induction coil. One induction coil is used to provide an output current to a different current path and the other induction coil is connected to the corresponding induction coil of other transformers for forming a current loop. The output current of each transformer has a relationship with the output current of the other transformers depending on the coil turn ratios of the connected transformers. LEDs in red, blue and green colors can be connected to different current paths so that the brightness of the LEDs in each color can be determined by the current in a current path.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: March 27, 2007
    Assignee: AU Optronics Corporation
    Inventors: Chin-Der Wey, Ya-Yun Yu, Hsien-Jen Li, Yueh-Pao Lee
  • Publication number: 20060284569
    Abstract: A driving circuit uses a plurality of transformers to provide currents for driving a plurality of LEDs associated with a plurality of current paths. Each transformer has two induction coils with a coil turn ratio between to the number of turns in each induction coil. One induction coil is used to provide an output current to a different current path and the other induction coil is connected to the corresponding induction coil of other transformers for forming a current loop. The output current of each transformer has a relationship with the output current of the other transformers depending on the coil turn ratios of the connected transformers. LEDs in red, blue and green colors can be connected to different current paths so that the brightness of the LEDs in each color can be determined by the current in a current path.
    Type: Application
    Filed: June 16, 2005
    Publication date: December 21, 2006
    Inventors: Chin-Der Wey, Ya-Yun Yu, Hsien-Jen Li, Yueh-Pao Lee
  • Publication number: 20060273745
    Abstract: The present invention uses one or more transformers disposed between an inverter driver to drive a plurality of lamps. Each transformer has a first coil and a second coil magnetically coupled to each other. Each of the first and second coils has an input end and an output end. The input end of the first coil is operatively connected to the input end of the second coil for receiving an input current. Each of the first and second coils has a capacitor connected between the input and output ends. The output ends of the first and second coils are used to provide output current in two separate current paths. As such, the output end of a transformer can be separately connected to the input end of two lamps or two such transformers.
    Type: Application
    Filed: June 7, 2005
    Publication date: December 7, 2006
    Inventors: Chin-Der Wey, Yi-Chun Yeh, Chia-Hung Sun, Yueh-Pao Lee