Samsung recently unveiled the most innovative concept of all time at the ongoing trade fair Consumer Electronics Show (CES) 2013. Yaum as it is named, is an emerging concept from Samsung which promises to offer bendable and unbreakable display. Below are some more facts on the same - 

 1 - Yaum offers flexible screens for smartphones.
2 - Yaum was first showcased by the South Korean manufacturer in 2011.
3 - Yaum display uses OLED and remains unaffected to cracks when dropped from a height.
4 - Yaum display can also be folded like a wallet or a book as well as rolled up. 

Yaum looks to be an amazing concept which could be used in the next generation phones from Samsung. Yaum was used on a screen measuring 5-inch (diagonally), having close to 720p resolution and 16:9 aspect ratio and it made it easier to view stock tickr and such information, thus providing more screen space to users. 

 Source - http://in.news.yahoo.com/samsung-shows-off--unbreakable--phone-which-rolls-up-like-paper-145242413.html

As per a reliable source, it is known that Yaum could be used by Samsung in its upcoming Galaxy S4 Series mobile phones. Wow...it does look very exciting to me. Time now for Apple to think again !!