Current initiative to create flexible, rollable display screens based on OLED technology:

“The display is functionally similar to the LCD (liquid crystal display) panels used inside TVs and notebooks, but with a crucial difference. Instead of containing glass substrates, the screen features a substrate of flexible plastic, allowing the display to bend.” (from CNET News.com article on flexible screens)

Starter Links: Wikipedia article on OLED | CNET News.com article on Samsung flexible LCD