We’ve seen a number of designs for real or concept notebooks, tablets, and smartphones over the last few years with screens that are meant to be folded up. This allows you to have a big screen when you need the extra real estate, or a smaller partial screen when you don’t. The only problem is that it’s hard to make these gadgets look good when you have a big fat bezel separating one section of the screen from the next.
Now Samsung is working on a new type of AMOLED display which can be folded in half, but which doesn’t show a seam when fully extended.
After folding and unfolding a prototype 100,000 times, researches found that screen brightness dropped by just 6 percent, which is hardly noticeable. It’s also not all that likely that you’d ever get around to folding a device with this display nearly that many times.
It could be a while before we start to see real world products with this technology. Samsung has a habit of showing off futuristic concepts long before they’re ready for mass production. After all, this is the same company that’s been showing off semi-transparent displays and bendable displays for the past few years.
via OLED-info
 Note that they are talking about 6% loss in brightness, which given that the screens today can be made really bright and outdoor readable is probably not much of a problem. Im sure they can and will do better than that sooner than we might think.
Anyone who would open and close a device 100 times a day likley has a job/task that would be better served with standard screen or a non-folding device. But folidng is really stowing or hiding the device, right?
So who hides their device 100+ a day? A student/teen who isn’t suppsed to be using their device in school.  So when you think about a teen sending out hundreds of texts/tweets a day. Thus for a student that screen would last 6 months!Â
100,000 is about 100 times per 1,000 days which is a little less than 3 years. That means 50 open/close operations per day (they go in pairs) which could be a big number on average but not impossible.