By Markus Allen
Founder of TruthIn7Minutes.com
Are you looking to purchase a TV, but don't know which technology works best for you?
Most of today's televisions utilize Liquid Crystal Display (LCD) technology. Two layers of glass are fused and liquid crystals block light to produce images on the screen when electric current passes through it.
LCD has been in widespread use since the early 1970s when it first appeared in digital watches. LCD TV is like pressing a button to view a watch in the dark. LCD TV is no different - it needs a light source, because it emits no light on its own.
Millions of shutters are deployed on an invisible-to-the-eye grid which open and close to release (or block) the light needed to create images.
Each shutter is paired with a colored filter which produces a "sub pixel." These are so small, that when combined they produce a single spot of color on the screen. With the illumination of backlight fluorescent lamps, these images show up for us to see.
An LED screen uses similar methods. The only difference is their source of light - LED TVs use light emitting diodes instead of fluorescence.
LED TVs provide a deeper, more balanced color saturation. And they use less electric, too.
LED TVs offer a richer viewing experience. But you pay the price for this as they're more expensive than LCD TVs.
Both technologies have side effects...
... The blue pixels in LED TVs can cause headaches, slight nausea and even vision loss.
The fluorescence in LCD TVs have a flicker rate... a strobe-like effect that causes all kinds of physical (and mental) disorders. In addition, LCD TVs contain fluorine gas (an extremely reactive and highly toxic gaseous element).
Now that LED TVs are meeting up in price with LCD TVs, most choose LED.
P.S. Have a look at my other investigations, videos and podcasts and get the real truth about life...