a liquid crystal display includes a first sub - pixel electrode to which a first data signal is applied , a second sub - pixel electrode which is spaced apart from the first pixel electrode and to which a second data signal is applied , and a floating electrode which is capacitance - coupled to the first sub - pixel electrode and the second sub - pixel electrodes . also described is a method of controlling an lcd , the method including applying a first data signal to a first sub - pixel electrode , applying a second data signal to a second sub - pixel electrode , and capacitance - coupling a floating electrode to the first sub - pixel electrode and the second sub - pixel electrode .