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Electro-optical effect is produced in ___________(a) LED(b) LCD(c) OFC(d) OLEDThis question was addressed to me during an online exam.The above asked question is from Liquid Crystal Displays in chapter Combinational Circuits of Digital Circuits |
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Answer» RIGHT choice is (b) LCD The best EXPLANATION: An electric field (induced by a small electric voltage) can change the orientation of MOLECULES in a LAYER of liquid crystal and thus affect its optical properties. Such a process is termed an electro-optical effect, and it forms the basis for LCDs. |
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