4K resolution
So while 4K UHD sounds like it has a pixel structures with 1/4 the area of 1080p, that does not happen with pixel shifting. Only a true 4K projector offers that level of resolution. That's why "true" 4K projectors cost so much more than 4K UHD projectors with otherwise similar feature sets. They produce smaller pixels, finer resolution, no compromising of detail or color from overlapping pixels. By comparison, the slight difference in aspect ratio between DCI and 3840×2160 pixel displays without overlap is insignificant relative to the amount of detail.
4KUniverse
4KUniverse is an American entertainment company that is the first 4K resolution TV channel in North America to be released. Founded in 2016 by CEO Matthew Mancinelli in Los Angeles, California, this channel is available through streaming or through satellite in North America as well as abroad in a few other countries, including China.