Glossary

Definitions of DTV, HDTV & 3DTV Terms

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Term Definition

Ten-Eighty-P (1080p) 1080p is the shorthand identification for a format 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 can be either implied by the context or specified after the letter p (or i), such as 1080p30, meaning 30 progressive frames per second, or 1080i60, meaning 60 interlaced fields per second.
Ten-Eighty-I (1080i) 1080i is the shorthand name for a format of high-definition video modes. 1080 denotes the number of horizontal scan lines—also known as vertical resolution—and the letter i stands for interlaced. In the alternate format of high-definition video mode, known as 1080p, the p would stand for progressive scan. The term usually assumes a widescreen aspect ratio of 16:9, implying a horizontal resolution of 1920 pixels and a frame resolution of 1920×1080 or about 2.07 million pixels.
Terrestrial Broadcasting A broadcast signal transmitted over-the-air to an antenna.
Twin Lead A term that refers to a two-conductor ribbon cable commonly used as a transmission line for TV signals.
Twin Lead Adapter A device for connecting a Twin Lead cable to a coaxial cable.