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The appearance of 4K home-theater projectors from Sony (4096x2160, seen above) and JVC (which is really more of a "pseudo-4K" that upscales 1080p to 3840x2160) has sparked increased interest in super-high resolution for consumers, especially since 4K seemed like a far-off dream until now. But many argue that the benefits of higher resolution are not visible on any screen size intended for home use. In fact, most people can't see the pixel structure of a 2K digital-cinema projector on a much larger commercial screen when sitting at a normal viewing distance, so how could they perceive the increased resolution of 4K on a smaller home screen?

Then there's the issue of 4K content, which I believe won't be available for distribution to the home for quite some time, if ever. Yes, we might see 4K-capable media in the next year or two—for example, BDXL optical discs and RedRay servers—but the studios give relatively few movies the full 4K treatment, and I bet those same studios will be loath to release movies for the home market at 4K. Until they do, owners of 4K displays will be limited to upscaled 1080p, which isn't all that much sharper than the original and carries the risk of scaling artifacts.

So I wonder how important 4K really is in the home? What do you think?

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