Among consumers, interest in modern technical solutions in terms of playing three-dimensional video at home is gradually increasing. Naturally, this raises questions for many - how to watch 3D on a TV is not clear to everyone. The 3D video transmission technology itself has been implemented for a long time and in various variations, but this applies to projectors. The television format has a number of specific features in 3D playback, and therefore the solutions used in the cinema are ineffective.
3D through cinema projectors
Volume in video is created due to the fact that the images are separated - the right and left eyes receive different frames, and their superposition leads to a 3D effect. In order to separate the frames, glasses with lenses colored in red and green were used. Subsequently, a more advanced technology of polarized glasses has emerged, whichfound use in IMAX. There is also RealD - this technology combines brightness and quality while transmitting images at high frequency. In the cinema, the 3D effect is implemented using 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 HD format, which corresponds to 1080 vertical dots, is now the most widespread. The three-dimensional image is transmitted in accordance with a certain principle that 3D LED TVs with this resolution use - it involves displaying separate frames for the left and right eyes. The frequency of conventional TVs is not enough for this, as screen flickering occurs. The required frequency for 3D technology in TVs is 120 Hz, versus the usual 50 Hz. In this case, a minimum response time is required to avoid frame overlap. This indicator is by far the best implemented in plasma TVs. As for LCD, matrices, it is far from always possible to meet the response time that meets the requirements of 3D. However, the development of LCD technology should soon eliminate problems with how to watch 3D on this type of TV.
Difficulties in transmission and reproduction
The problem lies not so much in the display of 3D content on the television screen, but in the transmission of information to this screen. Large amounts of data are transferred, and in order tothe technology worked correctly, the appropriate channels are required - for example, HDMI version 1.4. Most other transmission technologies cannot handle the volume of information for 3D.
Special 3D glasses for TV are required to watch 3D video. The latest technology is active glasses with alternately darkened lenses, they will only work when synchronized with the matrix.
Now fewer people are wondering how to watch 3D on a TV, these devices are no longer perceived as something outlandish - today a 3D TV is relatively inexpensive and accessible to almost everyone.
