HD
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),[1] while the letter p stands for progressive scan (meaning the image is not interlaced). 1080p can be
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referred to as full HD or full high definition to differentiate it from other HDTV video modes.[2] 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.[3]
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.
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