Active-matrix liquid crystal display (AMLCD)

What is an active-matrix liquid crystal display? Also known as TFT Display, or Thin Film Transistor Display. An active matrix liquid crystal display is the display industry’s term for the type of flat panel display that is currently the overwhelming… Read more »

Analog Monitor

What are Analog Monitors used for? An Analog Monitor is a monitor or display that is capable of accepting continuously varying or analog signals from the video source. This allows the monitor to display an infinite range of different colors… Read more »

Anti-Glare Screen

What are anti-glare screens? Anti-Glare Screen refers to a clear panel or filter placed over, or a transparent coating applied to the faceplate of computer monitor to help prevent glare from the sun or other bright light sources from appearing… Read more »


Anti-aliasing in multimedia is any technique used to smooth the jagged edges that are created when diagonal lines are drawn on a digitized image.

Aperture Grille

What is an Aperture Grille? An Aperture Grille refers to a method of CRT construction employing vertical strips of colored phosphor with a thin screan formed of a grid of tiny metal wires. Electron beams emitted from the electron gun… Read more »


What is computer screen brightness? Brightness is the setting of the basic light level intensity in a computer monitor. This is commonly set in conjunction with contrast to improve the quality of the viewable image.

Candela (cd)

What is a candela? The candela is the base unit of measurement of luminous intensity. It is defined as the power emitted by a light source in a particular direction per unit solid angle, weighted by the luminous efficiency function… Read more »

Candela per Square Meter (cd/m2)

What is a Candela per square meter (CD/M2)? The Candela per Square Meter (also known as a Nit) is the base unit used to measure the luminance of a display. The luminance of a display indicates how of how bright… Read more »

Cathode-Ray Tube (CRT)

What is a cathode-ray tube (CRT)? A cathode-ray tube (CRT) is a vacuum tube which is used to create images in the form of light emitted from the fluorescent screen. In its simplest form, it contains a source of electrons… Read more »


Contrast is the term used to describe the degree of brightness variation (white through black) in an image.

Contrast Ratio

What does contrast ratio mean? The contrast ratio is a measurement of a display’s contrast capability, and is defined as the ratio of the luminance of the brightest color (white) to that of the darkest color (black) that the system… Read more »

Dead Pixel

What is a Dead Pixel? A ‘Dead Pixel’ is the term used to describe a pixel that no longer illuminates. The term is more common on LCD and Plasma display technology, whereas a similar defect on a CRT monitor is… Read more »