An OLED display having at least first, second, and third differently
colored pixels includes a first light emitting layer provided over a
substrate for the first and second pixels and a second light emitting
layer provided over the substrate for the first, second, and third
pixels, wherein the first and second light emitting layers produce light
having different spectra, and wherein the light produced by overlapping
the first and second light emitting layers has substantial spectral
components corresponding to the light output desired for the first and
second pixels, and the light produced by the second light emitting layer
has substantial spectral components corresponding to the light output
desired for the third pixel; and first and second color filters in
operative relationship with the first and second pixels.