3D TV: Plasma or LCD?

While everyone is rushing to talk about 3D TVs. One important subject is often over looked when you buy tv looked and that’s 3D on what? 3D TV plasma or 3D LCD? You think theirs no difference? Well think again...

Plasma television may actually be better. Why? Especially considering how plasma television sales have dropped while LCD HDTV sales have soared? Well Plasma television have two big advantages when it comes to 3D. Those advantages are speed and contrast...

First, contrast. The eye receives high-quality when theirs a big visual difference between black and white. Its called a contrast ratio. Plasma's is almost always bigger than LCD HDTV, why? When a plasma television plasma television is black it's off, when LCD HDTV is black its because the tiny crystals on top of the always on black-light are blocking that light and sometimes a little light gets through. Even if LCD could go all the way to black as like Plasma. It cant do it as fast. Plasma can go to black 60 times faster then LCD. So that means that sports and games in 3D are measurable better.

As far as prices go, as mentioned earlier. Plasma television sales have been dropping recently compared to LCD and LED TVs. Due to demand issues this naturally will bring the price down. For example a basic 42-inch plasma television vs. a basic 42-inch LCD TV is around $500 vs $750(basic 2D) according to Plasma God online. Ironically its a win, win for plasma 3D vs LCD 3D, because its cheaper and has better quality of picture.

How Do 3D TVs Work

To understand how 3D and 3D TVs works we need to first review how humans perceive the world in 3 dimensions. We have 2 eyes a left and a right eye. If you were to take a finger and put it near to your nose and you look through your left eye and through your right eye. You can see a vastly different object. If you move the object further away and repeat the exercise. You can still see the difference between the two, but not as much as it was. So what this means is you perceive 3 dimensions when you see objects that are near to us and the 3D effect drops off as objects are further away.

When it comes the the movie-theater you have 2 different light sources, 2 different projectors that put a polarizer on the front of each projector. 1 will be polarize for the left eye and one will be polarized for the right eye. So as long as you have a pair of eye-wear which have the same polarity as the left and the right, then were ensured that the left image goes to the left eye and the right image goes to the right eye.

So when it comes to television you only have a single light source. So we have to produce a left image and a right image in a different way. We do this in a frame sequence matter. The TV produces a left image and a right image really fast. What we have to do though for it to synchronize with our eyes is we have to wear a pair of glasses that is synchronize to the television. So the television will tell the eye-wear... I am now showing the left image. So therefore the lens of the left side of the eye-wear will become transparent, the right lens will be going black. So therefore the left image is being seen by the left eye. This is all done really fast and is all blended together which is why you don't notice any quick flashing.

There is nothing wrong with plasma television or LCD HDTV in respects to 3D TVS. When it comes to 3D TVs there is a difference between plasma and LCD and that difference is fundamentally how they produce light.

LCD HDTV has to update its image very quickly. The problem with a LCD is because LCD HDTV uses technology that works as little gates that open and close to allow the back-light through. It takes sometime for those tiny LCD molecules to change their state, now this can cause a problem where the left eye sees part of the right image and the right eye sees part of the left image.

When it comes to plasma television. Your producing frame sequential images. A left then a right. A plasma television starts with a black produces its image, then erases it and then produces the next one. So when your produce a left, right, left, right, There’s little chance of getting distortion between the left and right image.