An IPS-mode transflective LCD device includes an array of pixels each including a reflective region and a transmissive region. A first pixel electrode and a first common electrode are formed in the reflective region, and a second pixel electrode and a second common electrode are formed in the transmissive region. The first and second pixel electrodes receive a common pixel signal. The first common electrode receives a first common signal which is common among the reflective regions of a plurality of pixels, and the second common electrode receives a second common signal which is common among the transmissive regions of the plurality of pixels.