| Active - Matrix is a term used to describe the thousands of diodes layed over a grid of film like wires, that make up the screens on flat screen monitors. They work by lighting up in hundreds of different colours when an electrical current passes through them. Transistors are used to keep these diodes on or off and together they form a high quality image on the screen. It is these transistors that give Active - Matrix screens a higher quality than Passive - Matrix screens. |