How to watch 3D on TV and what is TV 3D?

Among consumers, interest in modern technical solutions in terms of playing three-dimensional video at home is gradually increasing. Naturally, many people have questions about how to watch 3D on TV, it's not clear to everyone. The technology itself for transmitting three-dimensional video has been realized for a long time and in various variations, but this concerns projectors. The TV format assumes a number of specific features in 3D playback, and therefore the solutions used in the cinema prove to be ineffective.

3D through projectors of cinemas

The volume in the video is created due to the fact that the images are separated - the right and left eyes receive different frames, and their overlap results in a 3D effect. In order to separate the frames, glasses with lenses painted in red and green were used. Later, a more advanced technology of polarizing glasses arose , which found application in IMAX. There is also RealD - this technology combines brightness and quality when transferring images at a high frequency. In the cinema, the 3D effect is realized with the help of expensive specialized equipment, and therefore the question of how to watch 3D on a TV is solved by other methods.

Resolution of 3D TVs

The most widespread now is the HD format, which corresponds to 1080 vertically. A three-dimensional image is transmitted in accordance with a certain principle, which uses 3D LED TVs with this resolution - it involves showing individual frames for the left and right eyes. Frequencies of conventional TVs are not enough for this, because the screen flickers. The required frequency for 3D technology in TVs is 120 Hz, versus the usual 50 Hz. This requires a minimum response time to avoid overlapping frames. This indicator for today is best realized in plasma TVs. As for LCD, matrices, it's not always possible to meet the response time, which corresponds to 3D requirements. However, the development of LCD technologies should soon eliminate problems with how to watch 3D on a TV of this type.

Difficulties in transmission and playback

The problem is not so much in the image of three-dimensional content on the television screen, as in the transfer of information to this screen. Large amounts of data are transmitted, and in order for the technology to work correctly, appropriate channels are required - for example, HDMI version 1.4. Most other data transmission technologies can not cope with the amount of information for 3D.

In order to watch 3D video, you need special 3D glasses for your TV. The most modern technology - active glasses with alternate lens dimming, they will work only when synchronizing with the matrix.

Now fewer people are wondering how to watch 3D on TV, these devices are no longer perceived as something outlandish - for today, a 3D TV is relatively inexpensive and is available to almost everyone.