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What type of display does a normal calculator have? Normal means which is not so functional like scientific calculation. Basically I want to know what is that which shows black digits on display? I dissembled one calculator and saw its display was almost transparent. I did not get its functionality. Can someone explain it.

Thanks!! In advance.

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You are describing something called a liquid crystal display, usually just called LCD.

The main advantage of these displays is that they are very low power.

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