The invention relates to a method of manufacturing a liquid crystal display, comprising forming a color filter array substrate including at least a red (R) color filter and a green (G) color filter; disposing a thin film transistor array substrate oppositely to the color filter array substrate; sealing a liquid crystal layer between the color filter array substrate and the thin film transistor array substrate; and disposing a backlight unit to a surface of the thin film transistor array substrate, said backlight unit providing white light having an adjusted blue spectrum using at least a light emitting diode (LED) unit.