An OLED display for producing a full color image, comprising a plurality
of at least four different colored pixels including three different
colored addressable gamut-defining pixels and a fourth addressable
within-gamut pixel, each pixel having an organic light-emitting diode
with first and second electrodes and one or more organic light-emitting
layers provided between the electrodes; the OLED display having a
selected display white point, display peak luminance, gamut-defining
pixel peak luminances and within-gamut pixel peak luminance; and drive
circuitry for regulating luminance of the organic light-emitting diode of
each of the colored pixels wherein the sum of the gamut-defining pixel
peak luminances is less than the display peak luminance.