How Does 3D Television Work?

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With the release of 3D film AVATAR the demand for 3D television has increased manifold. To meet this rising demand companies are struggling to launch better products each day to surpass the competitors' business strategy. If you are keen to learn how 3D television works then you have landed on the right place. This article provides a complete guide in simple terminologies about 3D televisions.

The development in 3D TVs started in 1838 with valuable experiments of Charles Wheatstone in the field of stereoscopy. The basic principle of 3D television is similar to how our eyes work. As they are few centimetres apart from each other so different image are formed on our both eyes and hence we see any object in three dimensions.3D televisions either use active or passive techniques to serve this purpose.

The active 3D glasses use shutter to control the image formation on both eyes of the viewer. One image is formed on the right eye and the other is formed on the left eye of the viewer. The process is so instant that a viewer only sees the image which is meant for each eye. This is how the 3D TVs operate and enable a viewer to watch their favourite 3D movies and shows. The active 3D glasses are preferred by people all around the world for the fact that they display full image. However the other techniques are nonetheless worthy to consider before making any choice. The passive 3D TV shows one image for right eye and another for the left eye. Unlike shutters in active 3D TV, filtered glasses perform the major function in passive 3D TVs. It ensures that desired image is formed on each eye. Some people think that the picture quality is not as good as active 3D TV. The main reason behind this is the division of resolution into two halves as two images are formed in passive 3D TV.

Some companies are making serious efforts to remove the need of glasses to view 3D images. The techniques which can be used to serve this purpose are lenticular lenses and parallex barriers. Philips and Toshiba are considered to be the pioneer of manufacturing such type of 3D televisions. Although these 3D televisions which do not need viewer to wear glasses are available in small sizes at affordable prices but with the continuous development in this field these companies will be able to launch larger screen sizes at reasonable rates soon.