Some wild flexible screen technologies that in the future might scale to architectural sizes:
Plastic Logic is a German company developing flexible, plastic encapsulated organic display technologies with flexible transistors. The company was recently split: Flex Enable is now an independent R+D operation.
According to Wikipedia:
Originally a spin-off company from the Cavendish Laboratory at the University of Cambridge, the company was founded in 2000 by Richard Friend, Henning Sirringhaus and Stuart Evans and specialised in polymer transistors and plastic electronics.