In a kind of color LCD monitors, there are many points of light (pixels) which consists of a single liquid crystal as a point of light. Although referred to as a point of light, these liquid crystals do not emit their own light. The light source in an LCD device is white fluorescent lights at the rear of the liquid crystal composition.
Light point numbering tens of thousands, even millions that has shaped the image display. Polar liquid crystals through which an electric current will change because of the influence of magnetic field polarization arising and therefore will only let some color forwarded while the other colors are filtered.
Each pixel of an LCD typically consists of a layer of molecules that line between two transparent electrodes, and two polarized filters, the transmission axis of the (mostly) mutually perpendicular.