Patent ID: 8077127

Claim:
A liquid crystal display (LCD) device comprising: an LCD panel including a first substrate having a storage electrode and a pixel electrode that receives a data voltage in response to operation of a thin-film transistor, a second substrate having a common electrode, and a liquid crystal layer interposed between the first and second substrates, the LCD panel having an alignment interval during which liquid crystal molecules are transitioned from a splay state to a bend state, and a normal operating interval during which an image is displayed during the bend state; and a power supply section comprising a first alignment voltage generating part configured to generate a first alignment voltage, a second alignment voltage generating part configured to generate a second alignment voltage, and a gate voltage generating part configured to generate a gate-on voltage and a gate-off voltage, a common voltage generating part generating the common voltage, a first switching part being optionally connected to the first alignment voltage generating part and the common voltage generating part, the first switching part being electrically connected to the common electrode and a second switching part being optionally connected to the second alignment voltage generating part and the common voltage generating part, the second switching part being electrically connected to the storage electrode, wherein the first alignment voltage is higher than the data voltage and is applied to the common electrode during the alignment interval, and the second alignment voltage is lower than the data voltage and is applied to the storage electrode during the alignment interval, wherein the gate-on and gate-off voltages control operation of the thin-film transistor, and wherein the power supply section supplies a common voltage that is lower than the first alignment voltage and is higher than the second alignment voltage to the common and storage electrodes during the normal operating interval.