Patents by Inventor Ming-Jie Liu

Ming-Jie Liu 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).

  • Gamma voltage output circuit having the same DC current voltage input for liquid crystal display
    Patent number: 7864146
    Abstract: An exemplary gamma voltage output circuit (2) for a liquid crystal display includes a plurality of operational amplifiers (221) and a plurality of resistors (Rn1˜Rn2). Each of the operational amplifiers includes a high voltage input port, a low voltage input port, a non-inverting input port, an inverting input port, and an output port. The high voltage input port of each operational amplifier connects to a same electrical source, and the low voltage input port of each operational amplifier is grounded. The non-inverting input port of each operational amplifier receives a same direct-current voltage, and the output port of each operational amplifier outputs a gamma voltage configured for driving the liquid crystal display and is grounded via two respective of the resistors connected in series. A node between the two respective resistors connects to the inverting input port of the operational amplifier.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: January 4, 2011
    Assignees: Innocom Technology (Shezhen) Co., Ltd., Chimei Innolux Corporation
    Inventor: Ming-Jie Liu
  • Gamma voltage output circuit for liquid crystal display
    Publication number: 20080049001
    Abstract: An exemplary gamma voltage output circuit (2) for a liquid crystal display includes a plurality of operational amplifiers (221) and a plurality of resistors (Rn1˜Rn2). Each of the operational amplifiers includes a high voltage input port, a low voltage input port, a non-inverting input port, an inverting input port, and an output port. The high voltage input port of each operational amplifier connects to a same electrical source, and the low voltage input port of each operational amplifier is grounded. The non-inverting input port of each operational amplifier receives a same direct-current voltage, and the output port of each operational amplifier outputs a gamma voltage configured for driving the liquid crystal display and is grounded via two respective of the resistors connected in series. A node between the two respective resistors connects to the inverting input port of the operational amplifier.
    Type: Application
    Filed: July 23, 2007
    Publication date: February 28, 2008
    Inventor: Ming-Jie Liu