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LCD uses ________(a) sematic crystals(b) twisted nematic crystals(c) nematic crystals(d) cholesteric crystalsThis question was addressed to me in a national level competition.This is a very interesting question from Generation of DSBSC Waves topic in section Double Sideband Suppressed Carrier Modulation of Analog Communications

Answer»

Right choice is (B) twisted NEMATIC crystals

Explanation: LCD uses liquid crystal display. It uses twisted nematic crystals which are a TYPE of liquid crystal, consisting of a substance called the nematic. The nematic liquid crystal is placed between TWO plates of polarized glass.



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