Samsung has introduced a concept flexible OLED cellphone.

This cellphone appears to be a normal smartphone, almost resembling a Blackberry when closed. However, when opened, the phone turns into a large, bright OLED display. The flexible OLED display has long-been the source of prototypes showing off unique ways to get larger screens on cellphones without making them cartoonishly large.

The phone was introduced at FPD International, held in Yokohama, Japan. Samsung hasn't offered any word on when this phone might become an actual product, or what the price range will be.