The European OLED100.eu project developed a new OLED lighting panel that is the largest to date: a 33x33cm2 panel. The new panel offer 25lm/W at 1000 cd/m2 luminance. This relatively good efficiency was achieved using ou-coupling and an efficient RGB OLED stack. The panels were fabricated at the Gen-2 line at the Fraunhofer IPMS.
The new panels are based on the on-substrate tiling concept - with 5 segments connected in series. The 33x33cm2 panel itself is seamless and so can be tiled to create larger panels. The active area on each panel is 828cm2 aperture ratio of 76%).