Televisions with the ability to transmit a three-dimensional image today are becoming increasingly popular. This effect is achieved with the help of special technologies, when two eyes see one scene, but from different points of view. As a result, the signal is transmitted to the brain and the person sees a three-dimensional image.
How to choose a diagonal 3d TV?
Before you decide to choose a 3d led TV, determine the place in the room for him. The fact is that all models of modern TVs are designed for a certain distance from the screen to the viewer. Measure this distance, since you will have to choose the diagonal of a 3d TV with this characteristic. The larger the distance, the more diagonal you can afford. Then decide what resolution is most acceptable for you: 720p or 1080r. Now it remains only to calculate the diagonal: for resolution in 720p multiply the distance by 2.3, and for resolution 1080p the coefficient is 1.56.
How to choose a 3d led TV: the advantages and disadvantages of models
The most common option is to achieve a three-dimensional effect with the help of special glasses. There are three main types.
- Anaglyph technology. This is the cheapest option. From you you only need to correctly put on the light filters and make sure that the color of the glasses coincides with the color of stereophiles. In this case everything happens due to color filtering. The disadvantage is poor color rendition and a rather high eye fatigue, which can lead to dry eye syndrome with frequent use. Also anaglyph is "afraid" of video compression, so you will always have to select high-quality files.
- Active LCD glasses. This technology involves the use of active closures using liquid crystals and polarization filters. In a second the closures open and close at least 120 times, with each eye seeing only that part of the image that is intended for it.
This model of glasses allows you to choose a 3d TV with an inexpensive display, since it does not require significant changes in the design. - Points using passive polarization method. This option you can see in the cinemas of the city. Lenses in this model consist of simple glasses and polarization filters. If you are looking for a budget and quality option, then you should choose a 3d TV with passive glasses, since their cost is significantly lower than the active model and the color rendition is good. Also, such glasses do not give an aura or flicker effect when viewed.