Plural power generating units for use in a liquid crystal display and control thereof

A liquid crystal display (LCD), comprising:

• an LCD panel including a plurality of gate lines and a plurality of data lines, the gate lines and the data lines intersecting each other;
• a plurality of pixel units where each pixel unit includes a switching element connected to receive and selectively pass through a corresponding liquid crystal driving voltage from a corresponding data line, the switching element being further connected to receive from a corresponding gate line and respond to each of a predetermined and nominal gate-on voltage that can turn the switching element on and a predetermined and nominal gate-off voltage that can turn the switching element off;
• a first gate driver and a second gate driver, spaced apart from one another and configured to drive the plurality of gate lines;
• a first data driver and a second data driver, spaced apart from one another and configured to drive the plurality of data lines;
• a first driving voltage generator configured to provide a respective first driving voltage to a respective at least one of the first gate driver and the first data driver;
• a second driving voltage generator configured to provide a respective second driving voltage, that is a counterpart of the respective first driving voltage, to a respective at least one of the second gate driver and the second data driver;
• and
• an output deviation controller coupled between the first driving voltage generator and the second driving voltage generator, the output deviation controller being configured to control the first and second driving voltage generators using one or more feedback signals each having a magnitude which is a function of a potential difference between respective counterpart ones of the first and second driving voltages.