4K ultra high definition digital movie refers to the resolution of 4096 × 2160 digital movie, that is, 4,000 pixels in the horizontal direction, is currently the highest resolution digital movie.
At present, most digital movies in China are 2K with a resolution of 2048 × 1080 and some digital movies are 1.3K (1280 × 1024), while the so-called rural movies show 0.8K (1024 × 768).
Real 4K movies are taken with 4K video cameras and 4K projectors. Some 4K movies are shot on 35mm film and converted to 4K digital format.
As the resolution of film and movie and 4K roughly equal or slightly better, it can also ensure the clarity of the film after transcription.
For mainstream appliance manufacturers, they are more likely to manufacture Quad Full HD (3840 × 2160) devices at close to 4K because of the 16: 9 aspect ratio that consumers are currently viewing .