Digital books coming into their own

New York Times

CONSUMERS like large displays on the mobile devices they use for reading an e-mail message or an e-book, but they also like to tuck those devices into their pockets. But the bigger the screen on a cellphone or an e-reader, the sooner it outgrows pocket size. Now a hallmark feature of these screens — their rigidity — is changing. New technologies are developing that make displays flexible, foldable or even as rollable as papyrus, so that large screens can be unfurled from small containers...