Technically, "4K" means a horizontal resolution of 4,096 pixels. This is the resolution set forth by the Digital Cinema Initiatives. Because movies vary in aspect ratio, which refers to the exact ...

The number of horizontal and vertical pixels on a display ... while the "Q" in QXGA means four times (quad) the resolution of XGA. Each of the following resolutions is also an entry in this ...

Approximately 6,000 (6K) pixels of horizontal resolution. Although 6K cameras are available, which offer greater resolution than 4K and more flexibility in post production, there are no 6K TVs.