3D TV

Together with HDTV, 3D technology for home cinema systems is opening up a whole new world of entertainment. More and more films are being produced in 3D, and the same technology will play an increasingly important role for TV programmes of the future.

There are currently two different technologies used to bring the 3D experience into the living room: shutter technology and polarisation technology. It is still written in the stars whether shutter or polarisation technology will come out on top. Although the shutter models took centre stage at first, sales figures of televisions from both camps have meanwhile evened out.

On the following pages, we would like to show you how a 3D image is generated, explain the differences between the two 3D technologies and outline which accessories you will need.

3D with Shutter glasses:

On TV sets that project 3D films using the shutter method, the image on the screen alternates between the image recorded by the left camera lens and that recorded by the right...

3D with polarisation:

TV sets that use this technology supply images to both eyes at the same time. However, every other image line is intended for either the left or the right eye...

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How does three-dimensional television work?

Since our eyes are a certain distance apart, they send two slightly different images of the object they are viewing to the brain, each with its own perspective. Our brain combines this information and creates a single picture that allows us to perceive depth and other spatial relationships.

3D films are created in exactly the same way:
special 3D cameras are equipped with two lenses that are usually spaced as far apart as our eyes.
Just like our eyes, the camera focuses the image from the right and from the left at the same time. The two images are then processed into an HD signal, and the viewer perceives a 3D effect.

Without 3D glasses, you would only see a blurred double image on a normal 3D television. In this respect, all 3D glasses serve the same purpose: they make sure that each eye sees the half image it is meant to see.

The only difference is a question of “how” the image is established, which comes down to the technology of the 3D screen.