A liquid crystal display device includes a first substrate and a second substrate facing and spaced apart from each other, a gate line and a data line on the first substrate, the gate line and the data line crossing each other to define red, green, blue and white sub-pixel regions, a thin film transistor connected to the gate line and the data line, a color filter layer consisting of red, green and blue color filters on the second substrate, the red, green and blue color filters corresponding to the red, green and blue sub-pixel regions, respectively, and a liquid crystal layer between the first substrate and the second substrate.