Useful HDTV Definitions

CRT

Cathode Ray Tube: A display technology used in older (curved screen) 'tube' televisions, gradually being superseded by flat-panel technologies including LCD and plasma.

DLP

Digital Light Processing: DLP projectors use movable microscopic mirrors on a semiconductor chip to reflect or deflect the light source to product the image. This technology is used in rear-projection flat-screen televisions.

DVI

Digital Video Interface: A digital video interface standard designed to connect digital signal sources to digital display such as LCDs and Plasmas.

HD720

A picture resolution of 720 horizontal lines

HD1080

A picture resolution of 1080 horizontal lines

HDMI

High Definition Multimedia Interface: A newer digital audio and video interface to connect digital devices such as HTDVs to HD signal sources.

HDCP

High-Bandwidth Digital Content Protection: A content control system designed to protect digital content travelling via HDMI and DVI interfaces.

LCD

Liquid Crystal Display: A backlit display technology using liquid crystals sandwiched between two glass plates to block or emit light to form an image.

Pixel

Picture Element: A single unit or point in a graphic image.

Interlace Scanning

A technique for improving picture quality for while reducing the transmission bandwidth needed.

Plasma

A display technology that emits light from each individual pixel in the display.

Progressive Scan

The display of successive picture lines from top to bottom to form an image.