Electroluminescent display with improved light outcoupling

An electroluminescent display comprising a common substrate and an array of electroluminescent devices disposed on the common substrate, wherein each of said electroluminescent devices comprise an electroluminescent layer which is sandwiched between a first and a second electrode, a color converting material which is capable of changing light emitted by the electroluminescent layer into light having a longer wavelength and a stack of 2n+1 transparent dielectric layers wherein n =0, 1, 2, 3, . . . ,

• said transparent dielectric layers having a high refractive index of n>1.7 or a low refractive index of n<1.7,
• said transparent dielectric layers having a high refractive index n being arranged in alternating manner with said transparent dielectric layers having a low refractive index n,
• said stack of 2n+1 transparent dielectric layers being arranged adjacent to one of the electrodes and a dielectric transparent layer having a high refractive index n adjoining said electrode.