An OLED device having green emitting regions disposed over a substrate, and wherein
each green emitting region includes one or more light-emitting layer(s), a reflector
and a semitransparent reflector respectively disposed on opposite sides of the
light-emitting layer(s) and arranged to resonate light produced by such layers
such that the light has a substantial green spectral component, and a yellow color
filter element disposed in relationship to each green emitting region to produce
green light.