Patent ID: 8049697

Claim:
A liquid crystal display, comprising: a liquid crystal display panel including a plurality of data lines, a plurality of gate lines crossing the plurality of data lines, and a plurality of liquid crystal cells; a timing controller comprising: a data check unit configured to: check gray levels of input digital video data to determine whether two digital video data that are input consecutively change from a white gray level to a black gray level; and generate a first charge share signal only when the digital video data are changed from the white gray level to the black gray level; a polarity check unit configured to: determine a time when a polarity of a data voltage to be supplied to the data lines is inverted by counting a gate shift clock; and generate a second charge share signal only when the polarity of the data voltage is inverted; and a dynamic charge share control signal generator configured to generate a dynamic charge share control signal only when the gray level of the data voltage is changed from a white gray level to a black gray level and the polarity of the data voltage is inverted, based on the first and second charge control signals; a data driving circuit configured to: convert the digital video data from the timing controller into the data voltage; change the polarity of the data voltage; and supply any one of a common voltage and a charge share voltage to the data lines in response to the dynamic charge share control signal only when the digital video data are changed from the white gray level to the black gray level and the polarity of the data voltage is inverted; and a gate driving circuit configured to sequentially supply scan pulses to the gate lines under the control of the timing controller.