A liquid crystal display device includes a lower display substrate, an upper polarizing plate and a liquid crystal layer between the lower display substrate and the upper polarizing plate. The lower display substrate includes a base substrate; a thin film transistor on the base substrate; and a color filter layer on the thin film transistor. The liquid crystal layer is disposed on the color filter layer of the lower display substrate. The upper polarizing plate is disposed on the liquid crystal layer and includes an insulating substrate, a polarizer and a protective layer which are sequentially stacked from the liquid crystal layer.