An optoelectronic device includes a substrate (6, 7) comprising
semiconducting material and an array of smart pixels arranged on or in
the substrate, each smart pixel comprising at least one layer (12) of
organic light emitting material, and a light permeable electrode (13) in
contact with the organic layer on a side thereof remote from the
substrate. The smart pixels may be capable of one or more of a range of
functions, including image sensing, processing, communication and
display.