4K or Ultra HD is a new resolution standard designed for computer graphics and digital cinema. 4K has four times the resolution of normal 1080p HD video. 4K video has two standard types of resolution. 4096×2160 pixels for films and video production and 3840×2160 pixels for television and monitors.
4K has the following advantages:
- More detailed picture
- Larger projection surface visibility
- Better fast-action
- Higher image definition quality