An LCD technology used in flat panel computer displays; it produces brighter and sharper display with broader viewing angle than passive matrix screens. Active matrix technology uses thin film transistor at each pixel and is often designated as TFT screen.
Active Matrix also known as TFT (thin film transistor) Active Matrix offers better resolution than a conventional LCD monitor due to the faster refresh rate. Aspect ratio Is the ratio between the height and width of an image on a monitor. NTSC native aspect ratio is 4:3 or (1.33:1). When recorded, movies are made to fit a cinema wide screen, which is proportionally wider than a conventional TV. Generally cinema screens are at a ratio of 1.85:1 or 2.35:1 this number is usually referred to as 16:9 or letter box. Letter box - Is a method of shrinking the video image so that the original aspect ratio is displayed on a 4:3 monitor. Letter box displays black bars at the top and bottom of the screen displaying the wide screen image as it was recorded. Pan-and-scan - Is a method of displaying a wide screen movie on a normal 4:3 aspect ratio monitor. The outer portions of the movie a removed by the DVD player allowing a full screen video image.
A type of flat-panel display found on most of today's laptop computers. Active matrix technology differs from "passive matrix" only in that the screen is refreshed more frequently, creating much better picture quality with better viewing angles. The most common type of active matrix screen is called TFT (or "thin film transfer"). The two terms are often used synonymously.
(Affichage Matriciel actif) : Laptop display screen using TFT transistors to activate individually each LCD pixel. By controlling the light passage through each pixel, this display type offers a permanent, well contrasted and fast display, contrarily to other LCD displays. In fact the image is even better than with CRTs, because the image is permanent instead of being refreshed continuously.