Drive circuit for liquid crystal display device, liquid crystal display device, and driving method of liquid crystal display device

摘要

A drive circuit for a liquid crystal display device, includes first and second bus lines; a reference voltage selecting circuit for selecting one reference voltage corresponding to the driving voltage from a plurality of reference voltages generated by dividing an arbitrary power source by a plurality of voltage dividing resistors; a reference voltage selection controlling circuit for stopping the supply of the driving voltage by the reference voltage selecting circuit after the driving voltage is applied to the second bus lines for a predetermined period; and a power source controlling circuit for stopping the supply of the voltage from the power source to the dividing resistors. This invention provides also a driving method of a liquid crystal display device including steps of selecting a driving voltage corresponding to predetermined image data from a plurality of reference voltages generated by dividing an arbitrary power source by a plurality of voltage dividing resistors; applying the driving voltage of the second bus lines for a predetermined period; then stopping the supply of the driving voltage to the second bus lines; and stopping the supply of the voltage from the power source to the voltage dividing resistors after the driving voltage is applied to the second bus lines for a predetermined time.