An organic light-emitting device has a color modulation layer. The organic light-emitting device comprises a substrate having a red pixel region, a green pixel region, a blue pixel region and a white pixel region. First electrodes are positioned on the red, green, blue and white pixel regions of the substrate, respectively. A second
electrode is positioned on the first
electrode, wherein at least one of the first
electrode and the second electrode is a transparent electrode. An organic functional layer is interposed between the first and the second electrodes, where the organic functional layer has an emission layer emitting white color light. Color modulation
layers for red, green and blue colors formed by a
laser-induced thermal imaging (hereinafter, referred to as LITI) method are positioned on a surfaces opposite to a surfaces adjacent to the emission layer of the transparent electrodes of the red, green and blue pixel regions, respectively. Wherein the each color modulation layer has at least one of a CF and a CCM.