LCD Full Form: What is LCD?: What is LCD?, What is the use of LCD?, and What is the full form of LCD, If you don’t know the answer you will get answers to all such questions in this article.

LCD Full Form

The LCD full form is Liquid Crystal Display. An LCD is an electronic display device (Devices) that operates by applying a varying (Changeable) electric voltage to a layer of a liquid crystal, which changes its optical properties. LCDs are commonly used for portable electronic games such as viewfinders for digital cameras and camcorders, in video projection systems, for electronic billboards, as monitors for computers, and in flat-panel TVs.

LCD Full Form: What is LCD?

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What is LCD?

LCD is also similar to TV. But is very thin to see in comparison to TV and it is thinly made up of many layers. LCD is a Flat Panel Display Technology. It works on low power and its screen quality is also very good. This screen uses the Light Modulating of Liquid Crystal to block or let light pass through. A small piece of each of these crystal images is prepared and together they form a clear image. The crystal is usually called a pixel.

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LCD Structure

LCD has two glass layers that are very different from each other. But this layer is sticking to each other. There is a layer of liquid crystal on one of these and when electric lights come in it, it stops and releases the liquid crystal lights so that the image screen can be seen. Liquid crystal does not have any light of its own, rather it collects the light falling on it from some other source.

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A liquid crystal is a material with a structure that is intermediate between that of a liquid substance and a crystalline solid. Like a liquid, the molecules of a liquid crystal can move past each other. Like concrete crystals, however, they organize themselves into identifiable ordered patterns. In common with concrete crystals, liquid crystals can exhibit polymorphism, that is, they can take on different structural patterns, each with unique properties.

LCD Full Form: What is LCD?

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LCD Crystals

LCDs use either nematic or smectic liquid crystals. The molecules of a nematic liquid crystal align themselves along their axes in parallel. Smectic liquid crystals, on the other hand, organize themselves into layered sheets. Within various smectic phases, the molecules can take on different alignments relative to the plane of the sheet.

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The optical properties of liquid crystals totally depend on the direction light travels through a layer of material. An electric field induced by a small electric voltage (Less Electric Voltage) can change the orientation of molecules in a layer of a liquid crystal and thus affect its optical properties. Such a process is called the electro-optical effect, and it forms the basis for LCDs.

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LCD Full Form: What is LCD?

For nematic LCDs, changes in optical properties can result from changes in the molecular axes being applied or perpendicular to the applied electric field, the preferred direction being determined by the description of the chemical structure of the molecule. Liquid crystal materials that align parallel or perpendicular to an applied area can be selected to suit particular applications. The small power voltage required to display Liquid Crystal Molecules on a screen has been a key feature of LCD’s commercial success, and other display technologies have rarely matched their low power consumption.

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Use of LCD

LCD is used in a wide range of devices in today’s time and the names of some devices in which LCD is used are as follows –

  1. Mobiles
  2. Clocks
  3. Televisions
  4. Video Players
  5. Gaming Devices
  6. Digital Watches
  7. Portable Laptops
  8. Computer Monitors

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Types of LCD

There are two types of LCD.

  1. Dynamic Scattering Display
  2. Super Twisted Nematic

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Dynamic Scattering Display

In this two glasses are used. Which are fitted with a very thin layer of Lc Material. In this, a Transparent Conductive Coating is found inside the glass, as soon as power is applied to it, then the Liquid Crystal Molecules are automatically reset. This creates turbulence due to which it spreads the light and then a white appearance appears in it.

LCD Full Form: What is LCD?

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Super Twisted Nematic

The Super Twisted Nematic Liquid Crystal divides the molecule into several layers between two pieces. The Liquid Crystal Molecule of each layer rotates at an angle. And the first layer and the last layer Rotation Angle of the Liquid Crystal Molecule rotate in more than 90° degrees (180° to 240°).

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Advantages of LCD

There are many advantages of LCD such as –

  1. LCD provides Bright Picture Quality due to High Intensity.
  2. The LCD uses 1/3 of the electricity compared to CRT.
  3. LCD consumes less power than Plasma. But it consumes more power than OLED TV.

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