The largest 4K 3D OLED video wall display was presented to CES 2014 attendees in the Central Hall. It was clearly the hands down largest audience throughout CES of all the booths. At any time of the show, it was very difficult to get a clear unobstructed view of the whole screen. While LG had a similar wall last year, this one was curved, OLED, 4K 21:9 panels and presented in 3D. Last year's wall was flat and made of 16:9 LED 1080p panels.
I shot both with the same camcorder using my special custom filter designed to record 3D video off of passive TV screens.
As usual, with all my You Tube videos, it is best seen using a 3D TV set manually for side by side 3D mode. However, you can also see the 3D by selecting anaglyph from the You Tube web page and viewing from a regular 2D computer screen.