Here is the technical definition of 4K from Wikipedia:
Ultra high definition television (also known as Ultra HD television, UHDTV or UHD) includes 4K UHD (2160p) and 8K UHD (4320p), which are two digital video formats proposed by NHK Science & Technology Research Laboratories and defined and approved by the International Telecommunication Union (ITU). The Consumer Electronics Association announced on October 17, 2012, that “Ultra High-Definition”, or “Ultra HD”, would be used for displays that have an aspect ratio of at least 16:9 and at least one digital input capable of carrying and presenting native video at a minimum resolution of 3840×2160 pixels.
Here is the “english” definition:
Ultra HD is a broad definition for two picture standards 4K and 8K. 4K has 400% more resolution than current 1080P HD and has been adopted and sold in the U.S. for more than a year. 8K has 800% more resolution than 1080P HD and is used primarily in Japan and has not been adopted by the U.S. market yet.
What will 4K do for me ?
If a picture is worth a 1000 words, then 4K is ”War and Peace”. The detail and color rendition is better than anything you have ever seen, except real life… and it is close. You have to see it to believe it.
Will I see a better picture for everything I watch like TV and Blu-ray?
Yes. Most HDTV (Cable, Satellite) is broadcast at 1080i which is about half the resolution of 1080P. A blu-ray player will output a 1080P signal which is one forth the resolution of 4K. Neither a TV nor a blu-ray player sends out enough information to get the full benefit of 4K. The good news is that 4K TV and projectors have the ability to up convert the lower quality signal to the 4K level. Similar to when HDTV came out and it would up convert regular 480i TV to 1080i for an improved picture. But the full effect of 4K comes when connected to a 4K source. Most 4K TV manufacturers are offering media servers that have movies on them in the 4K format.
When will 4K content be more readily available?
Professional 4K Cinema quality motion picture cameras are currently selling to all the major movie studios. It is the first digital camera that rivals the quality of film. They have several major advantages over film that is of interest to the studios. First, movies with a high number of special effects will be much cheaper to produce because the real world scenes are shot digitally and that makes it less expensive to add the digital special effects during editing. Secondly shot scenes, or entire movies, can be stored indefinitely without degradation. In short new content should be coming quickly as the studios take advantage of the new camera technology. Also most studios will be re-releasing popular movies in the 4K format. And since the original version was shot on film, the picture quality is excellent!
Will regular TV be broadcast in 4K?
Not anytime soon. But there are indications that 4K movies will soon be available via download to the current 4K servers that are being sold. Currently you can stream 4K content from both Netflix and Amazon Prime!
Where can I get more information and see a 4k demo?
Call or come by our store. We have been selling and installing Projection/Screen systems since the original Advent 1000 Videobeam in 1977. We are 4K experts and have several 4K demo systems on display up to 130” diagonal.