Introduction 

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The display system is the ultimate connection between a measuring process and the user.

Liquid-crystal display (LCD)

LCDs can be used to show all sorts of pictures and information, like what you see on a computer screen or a digital clock.

Types of LCDs

1. Twisted Nematic (TN) 2. In-Panel Switching (IPS Panels) 3. Vertical Alignment Panels (VA Panels) 4. Advanced Fringe Field Switching (AFFS)

Twisted Nematic (TN): These LCDs are affordable and respond quickly to changes, which is good for things like fast-moving video games.

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They’re great for tasks that need accurate colors, like graphic design or watching movies.

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In-Panel Switching (IPS Panels)

They aren’t as cheap as TN displays but not as good as IPS ones.

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Vertical Alignment Panels (VA Panels)

Advanced Fringe Field Switching (AFFS): These LCDs are top-notch when it comes to showing colors accurately.

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An LCD screen is like a sandwich. In the middle, there’s a very thin layer of a special liquid crystal material.

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Construction of LCD

Working of LCD

LCD screens work in a clever way. Imagine the screen is like a sandwich with some special juice in the middle called liquid crystal.

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Light-Emitting Diode (LED)

A light-emitting diode (LED) is a tiny electronic device that can make light when you pass electricity through it.

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