Universal Display announced that they delivered eight wrist-mounted OLED displays to the US Army. Those 4.3" QVGA full-color displays are based on UDC's phosphorescent OLED materials and are built on thin flexible metal foil. The backplane is an amorphous-Silicon (a-Si) TFT, fabricated by LG Display. The displays were designed by L-3 Display systems and "offer various advanced communications features, all integrated into a thin and rugged housing that comfortably fits around a soldier’s wrist".
These prototype were built as part of a US Department of Defense (DOD) funded program.