Researchers from Japan's Semiconductor Energy Laboratory (SEL) and Advanced Film Device developed a 81-inch 8Kx4K OLED display that is built from 36 13.5" flexible OLED panels that have transparent edges on two adjacent sides.

The transparent edges enabled the researchers to connect the tiles seamlessly - to create the world's largest OLED display ever developed.

SEL has been developing flexible OLEDs for a long time, and a 13.5" flexible OLED was unveiled first in 2013. SEL is collaborating with Nokia to develop foldable AMOLED displays.

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