lcd means: Liquid crystal display stands for These super thin displays are found in flat panel monitors and laptop screens. For handheld TVs and PDAs as well as portable gaming devices, smaller LCDs can be used. An LCD screen’s image is made by sandwiching an electrochemically reactive substance between two electrodes. The electrical current can change the color of this substance by changing its voltage. Because LCD screens work on the principle that light is blocked rather than emitted, they consume less power than CRT Cathode-Ray Tube monitors. (in Computer Dictionary)