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LG 3D Glasses

The manufacturer LG produces passive and active 3D TVs which require two contrasting types of 3D glasses. There are advantages and disadvantages to both, but be careful to buy the right 3D glasses for the right TV. In most cases, they have to be from the same manufacturer, but when it comes to LG 3D glasses, also make sure that you are getting the appropriate type, active shutter or passive.

LG AG-S100 rechargeable active shutter 3D glassesLG Active Shutter Glasses
Most 3D TVs use alternate frame sequencing technology. That is, one frame is shown for the right eye, then one is shown for the left and so on. The 3D glasses that are used with this type of television are active shutter glasses. They are synchronised with the television, so that when the frame for the right eye is shown, the left side lens is blacked out, and vice versa for the frame shown for the left eye. In that way, each eye gets a slightly different image but the brain puts them together as one, creating depth. This is how depth is created in the real world, with each eye having a very slightly different perspective. The advantage of using this type of technology is that each eye gets the image in full resolution. The screen isn't showing two different images (as it does with the passive technique) meaning that there is no loss in picture quality and the images can be seen in full HD. The disadvantage from using this technique is that the glasses need to be powered, meaning that they are more expensive. They will also need to either have their battery changed or be recharged every so often.

LG Passive 3D Glasses
LG 3D glasses for the passive 3D TV, 47inch LD950LG has also manufactured a 3D TV which uses passive technology. In this case, the image for the left eye and the right eye are shown at the same time, and it is the glasses which filter out the correct image, so that again each eye only receives one of them. The 3D effect is thus produced, and the advantages of this are that the 3D glasses associated with this technology are cheaper and can be used in more places. This make of LG 3D glasses could also be used at the cinema. The disadvantage of using the passive 3D technology is that there is a loss in resolution. Both images are shown at the same time, which means that each image has half of the resolution possible for the screen. At the cinema this does not make much of a difference because they have such high resolution anyway, and the screen is very big. However on a small screen, a 3D TV, it could be more noticeable. Another plus point for these types of LG 3D glasses however is that, since they don't need any electrical power, they can be more slimline and there are more options in terms of style.

Summing Up
The LG active shutter 3D glasses will allow for a better picture while being more expensive, whereas the passive 3D glasses from LG are more versatile but will leave a slightly reduced picture quality. The most important thing to remember however, is to get the right kind of 3D glasses for whatever type of LG 3D TV you have.

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