Patent ID: 7868976

Claim:
A method to improve viewing quality of a liquid crystal display, the liquid crystal display comprising: a plurality of data lines for conveying a data signal; a plurality of gate lines for providing a driving signal; and a plurality of pixels, wherein each pixel has a switching unit to admit the data signal from a data line responsive to the driving signal from a gate line, and wherein each pixel has a first liquid crystal capacitor and a second liquid crystal capacitor, wherein a first end of the first liquid crystal capacitor is coupled to the switching unit, said method comprising: in said each pixel electrically connecting a coupling capacitor between the switching unit and a first end of the second liquid crystal capacitor; applying a first common voltage signal to a second end of the first liquid crystal capacitor and a second end of the second liquid crystal capacitor; and electrically connecting an adjustment capacitor to the first end of the second liquid crystal capacitor and providing a second common voltage signal to the first end of the second liquid crystal capacitor via the adjustment capacitor.