Timing controller, liquid crystal display device having the same, and driving method thereof

A liquid crystal display device, comprising:

• a liquid crystal display panel having vertically alignable liquid crystals;
• a gate driver for driving gate lines of the liquid crystal display panel;
• a data driver for driving data lines of the liquid crystal display panel;
• a power supply structured to supply a power signal to the liquid crystal display panel, the gate driver, and the data driver;
• a frame memory capable of storing previous frame data;
• and
• a timing controller structured to:
• output a first control signal or a second control signal at least based on a predetermined minimum white data and current frame data;
• output a compensation data signal in response to a comparison of the previous frame data and the current frame data;
• generate a saturation voltage data signal in response to the previous frame data and the current frame data, the saturation voltage data signal being limited according to at least one of allotted drive time and a response speed of liquid crystals in a liquid crystal display panel associated with the timing controller;
• and
• selectively output either the compensation data signal or the saturation voltage data signal in response to a selection control signal being as said first control signal or said second control signal.

A method of driving a liquid crystal display device, comprising:

• inputting predetermined minimum white data;
• generating a saturation voltage data signal at least based on previous frame data and current frame data;
• limiting the saturation voltage data signal according to at least one of allotted drive time and a response speed of liquid crystals in the liquid crystal display device;
• generating a compensation data signal by performing an operation of the previous frame data and the current frame data;
• generating a selection control signal by at least comparing the predetermined minimum white data and the current frame data;
• and
• selectively outputting either the saturation voltage data signal or the compensation data signal according to the selection control signal.