3D TVs Without The Need To Wear 3D Glasses

So I hear you ask is it possible to get a 3D viewing experience without the need for glassess?....

3D TV Requiring 3D Glasses - The downside:

Well although everyone would agree that current 3D technology requiring special 3d glasess to be worn is exciting, there are some downsides:

1.) 3D glasses used to view the 3D image are expensive, you wouldn't want to damage one.

2.) 3D glassess are usually manufacturer specific and will function on only one manufacturers range / series of TVs.

3) Lose your 3D glasess and you lose your ability to watch 3D content, the images will be displayed mixed and unwatchable.

4) Your 4 friends have come to your home to watch your favourite 3D film, but you only have 1 spare pair of glassees - What do you do?

3D TV Without The Need For Special 3D Glasses

Luckily manufacturers have recognised these disadvantages and are working on 3D TV displays that don't require glasses in order to watch the 3D content. These type of TVs are called Autostereoscopic 3D TVs.

How do Autostereoscopic 3D TVs work (without the need for glasses)?

To understand how Autostereoscopic TVs work, you should

first understand how we view objects in real life:

Your eyes act as 2 separate lenses which register two different angles of an object in front of you. Your brain then blends these two images together to produce a 3 dimensional image.

Autostereoscopic 3D television operates on a similar principle, however two different types of autostereoscopic technologies can be used:

Lenticular Lense Technology

Involves the use of lenticules, these are tiny cylindrical plastic lenses.

How It Works

The lenticules are pasted in an array on a transparent sheet, which is then stuck on the display surface of the LCD screen. When the viewer sees an image, it is magnified by the cylindrical lens. Lenticular lense technology is heavily dependant on where you are sitting. This technology requires the viewer to be in the perfect position in order to get the full 3D effect. Adjusting your postioning slightly could could stop your 3D viweing experience. Lenticular Lense Technology is less preferred by manufacturers.

Parallax Barrier Technology

This technology is very much a consumer-friendly technology with wide interests from manufacturers such as LG and Sharp. This technology quite importantly allows for regular 2D viewing.

How It Works

A fine grating of liquid crystals placed in front of the screen makes the parallax barrier. Slits exist in the screen corresponding to certain columns of pixels of the screen. These positions are carved so as to transmit alternating images to each eye of the viewer. The viewer is required to be seated in the perfect position. This very clever technology provides direct light through its slits from each image slightly differently to the left and right eye, whenever a voltage is applied to the parallax barrier. This creates an illusion of depth and presents a 3D image to the viewer.

The huge bonus with parallax technology as mentioned earlier is its ability to switch from 3D to 2D and back again. In fact manufacturers claim that this could be done with one button on a remote! How convenient would this be? Its easy to imagine watching 2D images one minute then swiftly switching to 3D mode the next when your friend arrives with the latest movie relase in 3D. Just make sure your friend also sits in one of the perfect viewing positions to watch the 3D content!

Is It Worth Buying A Standard 3D Television With Glasses Now?

You should know the answer to this one...with Autostereoscopic TV technology set to rapidly improve, why waste time purchasing extra 3D Glasses to view 3D content. If you wear standard glasses to read or watch tv anyway, then this option is definately for you.

3D Tv - No Glasses required...now thats perfect!