4K resolution is a generic term for display devices or content having horizontal resolution on the order of 4,000 pixels. Several 4K resolutions exist in the fields of digital television and digital cinematography. In the movie projection industry, (DCI) is the dominant 4K standard.
4K has become the common consumer friendly (UHDTV) but technically it is not 4K. Consumer 4K resolution of 3840 x 2160 (at a 16:9, or 1.78:1 aspect ratio) differs from the industry standard of 4096 x 2160 (at a 1.9:1 aspect ratio).
The television industry has adopted UHDTV as its 4K standard. As of 2013, some UHDTV models were available to general consumers for under US$1000. However, due to lack of available content, 4K television has yet to achieve mass market appeal. Using horizontal resolution to characterize the technology marks a switch from the previous generation, high television definition, which categorized media according to vertical resolution, such as 720p or 1080p; under that system, a 4K UHDTV is equivalent to 2160p.
Cap comentari:
Publica un comentari a l'entrada