Portable computers do not have room for a bulky monitor. Instead, they often use an LCD (Liquid Crystal Display) screen. There are three types of LCD screen available: monochrome, DSTN (Double Super Twisted Nematic) colour and TFT (Thin Film Transistor) colour. Monochrome screens have a thin light source behind the screen that glows. This is the cheapest type of LCD screen available for laptop PCs and provides a reasonable display. The two-colour LCD screens are now a standard feature of laptops. DSTN screens are cheaper but do not have such good colour as TFT screens. Colour TFT screens are often brighter and sharper than monitors for desktop PCs.
