It is done using a special type of liquid-crystal array developed by a British firm called Light Blue Optics, which is also developing the technology for use in tiny projectors (see article).

ECONOMIST: Monitor

The Nokia Lumia 822 delivers high-end features in a compact package, including an 8MP camera with industry leading optics from Carl Zeiss, alongside a 1.2MP HD front-facing camera for crystal clear video calls.

ENGADGET: Verizon officially announces Nokia Lumia 822, coming this Fall (update: $100 on two-year contract)