Abbreviated LCD, liquid crystal display is a flat, thin display device that replaced the older CRT screen. LCD offers better picture quality and support for large resolutions.
LCD explained (and more)
In general, LCD refers to a type of monitor that uses liquid crystal display technology, but also to flat panel displays such as those in laptops, calculators, digital cameras, digital watches, and other similar devices.
As liquid crystal display would indicate, LCD screens use liquid crystals to turn pixels on and off to reveal a specific color. Liquid crystals are like a mixture between a solid and a liquid, where an electric current can be applied to change their state so that a specific reaction occurs.
These liquid crystals can be thought of as a window shutter. When the shutter is open, light can easily pass through the room. In LCD screens, when the crystals are aligned in a special way, they no longer let that light through.