Mitsubishi is showing their new Diamond Vision OLED modular screen at CEATEC. It seems that a 150" screen costs $400,000. Mitsubishi says that they can provide the display at "unlimited" size, and it can be delivered in a curved design. Check out this great video:
The Diamond Vision OLED is already shipping, and Mitsubishi has installed the first screen over at Merck's new Material Research Center in Darmstadt, Germany.