There were several companies showing upcoming OLED products at CES. This transparent display was among them.
Also shown were flexible OLED displays, too.
Personally, I have held off buying a large LCD TV for this technology. With all that is going on in the field, including those working on technology that prints OLED displays with inkjet printers, I expect them to hit the market, en masse, soon, and the printed technology is likely to bring rapid price drops.
If anyone is interested in the latest, including shots of the flexible displays, have a look here - http://www.oled-display.net/