1080p is the shorthand name for a category of HDTV video modes.
The number "1080" represents 1,080 lines of vertical resolution
(1080 horizontal scan lines), while the letter p stands for
progressive scan (meaning the image is not interlaced). 1080p
can be referred to as full HD or full high definition to
differentiate it from other HDTV video modes. The term usually
assumes a widescreen aspect ratio of 16:9, implying a horizontal
resolution of 1920 pixels. This creates a frame resolution of
1920×1080, or 2,073,600 pixels in total. The frame rate in hertz
can be either implied by the context or specified after the
letter p (or i), such as 1080p30, meaning 30 Hz. 1080p is
sometimes referred to in marketing materials as "Complete High-
Definition". However, 2K/4K digital cinema technology is
commercially available, and ultra-high definition video is in
the research phase. In addition to the meaning of 1080p as a
display resolution, 1080p is also used to describe video
equipment capabilities. Use of 1080p and the