A liquid crystal display device includes a liquid crystal display panel including a liquid crystal display panel provided a plurality of data lines; a data distributor distributing input data; a first and second memories equally storing data to be supplied to an odd-numbered data line among data distributed by the data distributor; a third and fourth memories equally storing data to be supplied to an even-numbered data line among data distributed by the data distributor; and a clock generator generating a divided clock reading and outputting a data stored at the first and second memories or the third and fourth memories.