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While some gadget-watchers are incredulous about the practicality of a scrollable phone, others see the benefit in trying to make them anyhow. NPD DisplaySearch analyst Paul Semenza is one of them. "I don't think anyone developing them knows the value of curvature or flexibility yet," he told CNET. What are the hurdles to making a flexible smartphone?It takes much more than a bendy screen to make a phone you can flex. Right now, batteries and other circuitry are unyieldingly straight. The durability of a bendable phone and its internal parts are also in question. Depending on the design, you may need to have a flexible display, cover material (like plastic or glass), arching batteries, and forgiving silicon.

Some of this is already in the works, LG announced new battery tech for three kinds of juice packs that can curve, squeeze into tight spaces, and even contort like a pretzel, Time will tell if these produce and hold enough charge to competitively power a iphone case uk smartphone, In addition, devices can be designed so they have a sort of rigid spine that stores the components that can't be flexed, while the rest of the gadget moves freely, We know that these various flexible designs are possible based on concept devices shown by Samsung and others..

Along with making the guts flexible comes another big challenge -- manufacturing these devices and displays at high volumes. Phones that move will undoubtedly cost more than standard smartphones when they first hit the market, but after the industry nails down more efficient manufacturing, the cost to make the phones will surely drop, along with their sticker price. Even though the Galaxy Round and G Flex's displays are curved, not bendable, they're undoubtedly still tough to manufacture efficiently at high volumes.

Which is better, flexible OLEDs or LCDs?When companies show off displays being curved, bent, folded, or rolled, they're typically using OLED, While it's possible to curve an LCD, it's not as easy or as effective as curving OLED, according to the experts we spoke with, LCDs, or liquid crystal displays -- the most common type out there -- are made of two sheets of glass that sandwich a liquid crystal material that modifies the light as it goes through it, They require a backlight of light-emitting chips to sort of pump light through the display, It's possible to iphone case uk curve LCDs, but is difficult because the distance between the two sheets of glass have to be consistent, Forget about doing things like rolling them up..

OLED, meanwhile, doesn't need chips to create light, and it only needs one piece of glass (or even plastic or metal) to serve as the substrate. Both these factors make it a better candidate for bending. OLEDs light up the screen with carbon-based materials that are deposited onto the surface, and that surface can then be shaped. Companies typically will add a second piece of glass afterward to protect the bottom layer. Are the flexible phone screens made of glass? We wish we could tell you for sure, but we just don't know yet. Samsung isn't sharing specific details, and Corning (makers of Gorilla Glass) declined to comment. There's some speculation that Samsung would be using a plastic polymer screen, but it appears more likely that the Round, for one, has a thin layer of glass that has been bent into a curved shape.