LCD stands for “liquid crystal display.” LCD screens are used in televisions, computers and cell phones, particularly those that require thinner displays than picture tube technology.
LCD technology uses florescent bulbs behind layered glass to project an image. The layers of an LCD screen include two polarized panels with liquid crystal between them, through which light is projected and colorized. The display grids on LCD screens are made with either passive or an active grids, with each affecting the luminance and screen refresh time in different ways. Active matrix, or a display in which every pixel is individually controlled, is generally considered superior. Passive matrix technology, or a display system in which each individual pixel is controlled according to its column and row, allows dual scanning.