An organic light-emitting diode (OLED) device, comprises: a first
electrode and a second transparent electrode having one or more organic
layers formed there-between, at least one organic layer being
light-emitting; and a contrast enhancement element formed on a side of
the second transparent electrode opposite the organic layers, wherein the
contrast enhancement element comprises a patterned reflective layer for
reflecting emitted light and a corresponding light-absorbing layer for
absorbing ambient light, wherein the reflective layer is located between
the light-absorbing layer and the second transparent electrode and
wherein the corresponding layers form one or more transparent openings
through the reflective and light-absorbing layers so that light emitted
by the light-emitting organic layer passes through the transparent
openings.