An organic light-emitting diode (OLED) device, comprising: a substrate; one or more OLEDs formed on the substrate comprising a first electrode formed over the substrate, one or more layers of organic material, one of which is light emitting, formed over the first electrode, and a second electrode formed over the one or more layers of organic material; a cover provided over the one or more OLEDs and spaced apart from the one or more OLEDs to form a gap; and separately pre-formed elastic compressible spacer elements located in the gap between the cover and the one or more OLEDs.