DCE™
Digital Chroma Enhancement produces rich, saturated colours when video and moving images are displayed.

DDC
Display Data Channel. VESA 'Plug and Play' standards DDC 1 & 2B allow a DDC compatible graphics card to auto-detect the EDID Identification Code held in a DDC monitor, and set the optimum resolution and refresh rate.

DDWG
Digital Display Working Group. Standards Group organised by Intel to define a digital video interface for displays.

DFP
Digital Flat Panel connector. Simple digital video interface proposed by VESA using single channel TMDS.

Digital Controls
High-tech SoftTouch digital controls electronically sense the slightest touch for easy adjustments of size, position and tuning at all resolutions.

Digital CRT Monitor
CRT monitor having digital input capability.

Dot Pitch
The diagonal distance in millimetres between phosphor dots of the same colour coating the inside of a CRT screen. A monitor with a smaller dot pitch produces a higher resolution picture.

Dot/Pixel (Picture Element)
The smallest active element that forms all text and graphics on the LCD screen.

Double Dynamic Focus System (DDFS)
Monitors with DDFS use extra quadruple electron lenses for better focus and a sharper image.

DPMS
Display Power Management Signalling standard. VESA standard which ensures that monitor and video card manufacturers produce power saving products that work together. See also DDC

Drift
see Swim.

DVI
Digital Video Interface. Digital display interface protocol proposed by DDWG. Capable of high bandwidths required to support very high resolution screens.

Electron Gun
Located in the neck of a CRT monitor, the electron gun generates a fine beam of electrons which are directed toward the phosphor dots on the CRT faceplate to form the image.

EDID
Extended Display Identification. Identification code held in monitors to allow 'Plug & Play' operation in 'Windows'. See also DDC

ELF
An Acronym for extremely low frequency. The frequency range is defined from 30 to 300Hz. Power distribution systems and CRT monitors can emit ELF electromagnetic waves. (Rosch, 1991).

Firewire
High speed serial bus used by Apple Macintosh and Sony, suitable for video data rates.

Flicker
Rapid brightness fluctuation as the screen refreshes. Can be tiring for the eyes. Most viewers perceive flicker at 60Hz, few above 80Hz.

Frequency
Defines number of events during a time period. Hertz (Hz) is a measurement of frequency, i.e. the number of cycles per second.

FTP
File Transfer Protocol: Format and rules for file transfer between computers or servers.