Now a days every where we are seeing LCD(Liquid crystal display) monitors. These are very good for eyes and their picture quality is good compared to CRT(Cathode Ray Tube).Also they are very thin compared to CRT. LCD monitors don't have any tubes.They are lighter in weight also and more portable. But the only drawback of these monitors is their cost.They cost more compared to CRT as much as double.Now a days we are widely using these LCD displays in Laptops and watches etc.
Technology Involved in LCD:
LCD devices contain two sheets of polarizing material with a liquid crystal solution between them.When electric current passed through the LCD's liquid it causes the crystals to align so that light cannot pass through them.So each crystal either allowing light to pass through or blocking the light.This way LCD's work.
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