A color OLED display having at least three different colored microcavity pixels,
each including a light reflective structure and a semi-transparent structure includes
an array of light-emitting microcavity pixels each having one or more common organic
light-emitting layers, said light-emitting layer(s) including first and second
light-emitting materials, respectively, that produce different light spectra, the
first light-emitting material producing light having a first spectrum portion that
extends between first and second different colors of the array, and the second
light-emitting material producing light having a second spectrum portion that is
substantially contained within a third color that is different from the first and
second colors, and each different colored pixel being tuned to produce light in
one of the three different colors whereby the first, second, and third different
colors are produced by the OLED display.