Patent ID: 8921842

Claim:
An organic light emitting display device, comprising: a substrate; a plurality of pixels defined in the substrate, a pixel comprising red subpixel, green subpixel, blue subpixel, and white subpixel, the pixel further comprising: an anode electrode formed on the substrate; a cathode electrode opposing the anode electrode; a red common emission layer, a green common emission layer, and a blue common emission layer formed across each of the red, green, blue and white subpixel areas, wherein the blue common emission layer is disposed above and adjacent to the anode electrode, the green common emission layer is disposed above the blue common emission layer, and the red common emission layer is disposed above the green common emission layer and adjacent to the cathode electrode; wherein the red common emission layer, the green common emission layer, and the blue common emission layer stacked in the white subpixel emits a red light, a green light, and a blue light such that a white light is output from the white subpixel.