Back Vloeikristalskerm Afrikaans شاشة عرض البلورة السائلة Arabic Pantalla de cristal líquidu AST LCD Azerbaijani Вадкакрысталічная панэль Byelorussian Течнокристален дисплей Bulgarian তরল স্ফটিক ছবির পর্দা Bengali/Bangla Skramm strinkennoù liñvel Breton LCD monitor BS Pantalla de cristall líquid Catalan
A liquid crystal display is a special thin flat panel that can let light go through it, or can block the light. (Unlike an LED it does not produce its own light). The panel is made up of several blocks, and each block can be in any shape. Each block is filled with liquid crystals that can be made clear or solid, by changing the electric current to that block. Liquid crystal displays are often abbreviated LCDs.
Liquid crystal displays are often used in battery-powered devices, such as digital watches, because they use very little electricity. They are also used for flat screen TV's. Many LCDs work well by themselves when there is other light around (like in a lit room, or outside in daylight). For smartphones, computer monitor, TV's and some other purposes, a back-light is built into the product. This is an LED or Cold Cathode Fluorescent Light (CCFL).