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Thursday, January 24, 2019

What's the difference between LCD and LED TV?

What's the difference between LCD and LED TV? 
  Answer : 
              The only difference between the two is how the light is generated at the back of the screen. Let us see what this exactly means.
How an LCD Television Works 
LCD television Screens are made up of a liquid-crystal gel sandwiched between two panes of polarized glass When yo power on the television, the electric current passes through the liquid-crystal display, altering  its structure. The liquid-crystal molecules coil and uncoil. The creates a shuttering effect, whereby light is either allowed to pass through or not. This variation in light and dark on the screen, is what the viewer perceives as images.
Unlike plasma TVs, the liquid- crystal does not create its own light. It requires another light light source. In the case of LCD TVs, the screen is lit by fluorescent tubes.
How an LED Television Works 
An LED TV is just a new generation of LCD TV. The difference is that an LED TV is not lit using fluorescent tubes,but rather a series of light emitting diodes (LEDs).There are tree basic types of LED televisions, ans each has its own specific format.

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