Patents by Inventor Zhan WEI

Zhan WEI 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: 20080180418
    Abstract: An exemplary liquid crystal panel control circuit (20) includes a direct current converting circuit (23). The direct current converting circuit includes a comparator (231), a reset circuit (232), and a DC-to-DC converting circuit (233) connected in series. The liquid crystal panel control circuit can return to an initial status from a protection status by the reset circuit.
    Type: Application
    Filed: January 28, 2008
    Publication date: July 31, 2008
    Inventor: Zhan-Wei Fu
  • Publication number: 20080094384
    Abstract: An exemplary driving circuit for a liquid crystal display (3) includes a power supply circuit (34), a backlight control circuit (356) and a counter (355). The power supply circuit provides voltages for the LCD. The backlight control circuit controls whether or not the voltages provided by the power supply circuit are transferred to a backlight module of the LCD. The counter is configured for counting a number of pulses received from an external circuit, when the number of pulses received reaches a predetermined threshold number, the counter provides a trigger signal to turn on the backlight control circuit, so that the voltages provided by the power supply are transferred to the backlight module.
    Type: Application
    Filed: October 1, 2007
    Publication date: April 24, 2008
    Inventor: Zhan-Wei Fu
  • Publication number: 20080042952
    Abstract: An exemplary power supply circuit (212) for a liquid crystal display (LCD) (2) includes a power source integrated circuit (IC) (214). The power source IC includes a voltage input (213) configured for receiving an external power source Vcc; a positive voltage output (215) configured for providing a first voltage; a negative voltage output (216) configured for providing a second voltage; a detecting circuit (2141) configured for generating a control signal when the LCD is turned off; and a switching circuit (2142) configured for receiving the control signal and electrically connecting the negative voltage output to the positive voltage output in order to increase a potential of the negative voltage output quickly.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 21, 2008
    Inventor: Zhan-Wei Fu
  • Publication number: 20070146301
    Abstract: An exemplary liquid crystal display (200) has a liquid crystal panel (240); a gate driving circuit (230) configured for scanning the liquid crystal panel; a data driving circuit (220) configured for providing a plurality of gradation voltages to the liquid crystal panel; a photo sensor (241) configured for measuring a luminance of ambient light and generating a corresponding optical signal; a luminance control circuit (231) for receiving the optical signal from the photo sensor and transferring the optical signal to a measurement signal; a timing control circuit (210) configured for controlling the gate driving circuit and the data driving circuit; and a backlight circuit (270) for driving a light source to emit light beams for illuminating the liquid crystal panel, according to the measurement signal from the luminance control circuit.
    Type: Application
    Filed: December 26, 2006
    Publication date: June 28, 2007
    Inventors: Zhan-Wei Fu, Ming-Hung Tsai