The Holst Center is developing OLEDs on foil, with an aim to integrate them on textiles. In the following video you can see some demonstrations of OLED and LED integrated into textiles and OLEDs on a stretchable matrix, too:

I really liked that fabric with the Holst Centre with the hidden LEDs... Nice!

Tags:
Kyulux - Hyperfluoresence OLED emittersKyulux - Hyperfluoresence OLED emitters