OLED TVs I saw represented the most impressive change from what I'm currently getting from my 1080p TVs.
Don't get me wrong—there's a lot to like about Ultra HD TVs. Certainly the high-resolution 4K screens look great and let you get incredibly close to the TV without seeing any visible pixel grid (called the "screen-door effect"). For many of us, this means that you'll be able to get a larger screen while maintaining the same seating distance.
And for now, OLED manufacturers are having a tough time making larger OLED sets; the current size limitation is about 55 or 56 inches. At CES, we saw Ultra HD prototypes as large as 110 inches, and the few already being sold are 84-inchers. During the show, several companies announced models in the 55- to 75-inch range, a more suitable size for most prospective buyers, although I question whether a 55-inch Ultra HD TV can adequately showcase the higher resolution.
It's also likely that Ultra HD TV prices will fall faster than those of OLED sets. Ultra HDs are essentially LCD TVs with a higher pixel density, so they can be manufactured on the same production lines as standard LCDs. OLED TVs require a new manufacturing process, and yields so far haven't been great, which will likely keep prices high for a longer period of time.
But that's also Ultra HD TV's weakness: These 4K sets essentially remain LCD TVs, with many of that format's drawbacks—most notably backlight-uniformity issues, limited viewing angles, and often, mediocre contrast levels. Yes, the images look sharper, but most viewers will notice it only with top-quality source material, and 4K Blu-rays are at least a year away.
OLED, however, is a new type of TV, and it's the perfect vehicle for demonstrating that image detail is only one of a handful of attributes that contribute to great-looking picture. OLED TVs feel to me like an entirely new TV-viewing experience. Blacks levels are so deep that you to need see them to believe them.
In the first OLED demo I ever saw a few years ago—in room that could go almost absolutely dark—the TV seemed to disappear when the lights turned off; the images seemed to float in space.
OLEDs also deliver ultra-high-contrast images, with bold, vibrant colors that jump off the screen. Add with better-than-plasma brightness, unlimited viewing angles, and energy efficiency that trumps even LED-based LCD TVs, OLED delivers a dynamic viewing experience.