At CES in Las Vegas, the South Korean manufacturer unveiled a 77-inch TV with a flexible OLED display that curves or flattens on command. Through a special button on the remote, users can even control the angle of the TV screens curve. The idea is that the degree of the curve can be adjusted according to the content being viewed. With this innovation, LG ensures it is still on par with its major rival Samsung, which also wowed CES visitors by demoing a TV that flattens and curves at the press of a button.