These days, it seems like gadgets are constantly improving, and now the next big development may be organic light-emitting diodes, or OLEDs. The technology promises to improve your phones' quality, durability and even foldability. An article in Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society, takes a look at the market for this technology and why it is expected to more than double by 2020.