A method for operating an OLED display for producing a full color image at reduced power, wherein the method comprises the following steps: a) providing 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 for emitting light in response to current through the electrodes; b) selecting (i) a display white point which is within a color gamut of the display, wherein the color gamut is determined by the gamut-defining pixels, (ii) display peak luminance, (iii) gamut-defining pixel peak luminances and (iv) within-gamut pixel peak luminance, wherein the display white point and the display peak luminance are provided based on an activation of the within-gamut pixel alone or in combination with one or more of the gamut-defining pixels, and wherein the within-gamut pixel peak luminance corresponds to a luminance required to reproduce the display white point at the display peak luminance; c) receiving respective pixel signals for the gamut-defining pixels, each pixel signal corresponding to an input luminance of the respective pixel; d) regulating luminance in converting one or more of the pixel signal(s) to respective modified signal(s) in a narrower luminance range to limit the gamut-defining pixel peak luminance of one or more of the gamut-defining pixels; e) providing respective currents corresponding to the respective modified signal(s) to the respective one or more gamut-defining pixels for which the respective pixel signals are modified and providing respective currents corresponding to respective unmodified pixel signal(s) to respective gamut-defining pixels for which the respective pixel signals are unmodified, to cause the gamut-defining pixels to emit corresponding, respective light, wherein the resulting luminance emitted by all gamut-defining pixels and the within-gamut pixel together is less than the sum of the input luminances. a) providing 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 for emitting light in response to current through the electrodes; b) selecting (i) a display white point which is within a color gamut of the display, wherein the color gamut is determined by the gamut-defining pixels, (ii) display peak luminance, (iii) gamut-defining pixel peak luminances and (iv) within-gamut pixel peak luminance, wherein the display white point and the display peak luminance are provided based on an activation of the within-gamut pixel alone or in combination with one or more of the gamut-defining pixels, and wherein the within-gamut pixel peak luminance corresponds to a luminance required to reproduce the display white point at the display peak luminance; c) receiving respective pixel signals for the gamut-defining pixels, each pixel signal corresponding to an input luminance of the respective pixel; d) regulating luminance in converting one or more of the pixel signal(s) to respective modified signal(s) in a narrower luminance range to limit the gamut-defining pixel peak luminance of one or more of the gamut-defining pixels; e) providing respective currents corresponding to the respective modified signal(s) to the respective one or more gamut-defining pixels for which the respective pixel signals are modified and providing respective currents corresponding to respective unmodified pixel signal(s) to respective gamut-defining pixels for which the respective pixel signals are unmodified, to cause the gamut-defining pixels to emit corresponding, respective light, wherein the resulting luminance emitted by all gamut-defining pixels and the within-gamut pixel together is less than the sum of the input luminances.