High Quality Content by WIKIPEDIA articles! 1080p is the shorthand name for a category of HDTV video modes. The number 1080 represents 1,080 lines of vertical resolution (1,080 horizontal scan lines), while the letter p stands for progressive scan (meaning the image is not interlaced). 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. 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. Only 1080p can be referred to as full HD or full high definition although 1080i (interlaced) is also 1920x1080 pixels. A 1080p picture, with a resolution similar to that of 2K digital cinema technology, is sometimes referred to in marketing materials as "Complete High-Definition". However, 4K digital cinema technology is commercially available, and ultra-high definition video is in the research phase.