What is an LCD TV and how does it work?

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LCD televisions are all around you, whether you know it or not. Okay, perhaps LCD TVs are not all around you, but LCD displays certainly are. From your digital clock, to microwave ovens, to internal car displays, to thermometers, to stereos to calculators and more, LCD displays are everywhere. But what is an LCD and how does it work? Even if you have been around LCD TVs and LCD displays, you probably do not understand exactly what they are or how they function to provide a colorful display.


What are LCD TVs?
An LCD TV, or Liquid Crystal Diode, is a television set that uses liquid crystals to process light from a solid beam into a colorful display. While it might seem oxymoronic to say that a liquid is a solid, the term liquid crystal diode actually refers to the relatively pliable twisted crystalline structure that makes up the liquid crystal. Because the crystal is twisted, it retains the liquid terminology, even though it is not truly liquid, but more so flexible. Liquid crystal technology is part of the reason that slim, modern displays have popped up in the last few years in lobbies, hotel rooms, living rooms and more.


Even the recently popular LED TVs are actually LCD TVs. LED TVs are given that terminology because of the LED backlighting that has transformed the previously dull displays into brighter and more luminous LED displays. While maybe people call them LED TVs, they are in actuality, LCD TVs with LED backlighting.


How to LCD TVs work?
LCD TVs and LED TVs actually block light from passing through with a variety of twisting and untwisting of the liquid crystals. The liquid crystals allow light to pass through differently depending upon the intensity of the voltage of the electrical charge running through the crystals, manipulating the strength of the light. The liquid crystals are twisted and untwisted depending upon the amount of light that is required at that moment. Light crystals are full twisted when the display shows a lighter shade. Light crystals are fully straight when the display shows a darker shade.


Now that you understand the basics of what makes a television work, being that depending on the voltage passing through a certain area of a display, liquid crystals twist and untwist to let light pass through or to block the light completely, you better understand LCD TVs in general. Of course, understanding LCD TVs does not make you an expert, but knowing little bits about life can help you understand your technological piece if they happen to stop functioning properly. If you are considering buying an LCD TV, remember that LCD TVs and LED TVs are virtually the same, with varying forms of backlighting. Now you know.

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