How does TV diagonal affect viewer distance from screen

The distance to the TV directly depends on the diagonal and the type of display. A few years ago, hardly anyone wondered about the distance of the device from the sofa or bed, but today, when the size of home TV reaches impressive dimensions, the question becomes relevant. Many buyers want to purchase the largest TV, which can fit into the situation. For viewing to be comfortable for a long time, not harming the eyesight of adults or children, the distance from the eyes to the center of the screen must be correctly selected, depending on permissions and TV diagonal size in inches.

General rules and some amendments

Naturally, there is no strict framework for this, there are only some rules and recommendationsAt what distance you need to watch TV. It was previously assumed that the distance from the screen to the eyes should be three to four diagonals. So, if the diagonal is 32 inches (80 cm), then the person should be at a distance of 2.4 - 3.2 m, with a larger figure, it is permissible to slightly increase. Range allows you to choose the most convenient position.

Such calculations of the correct distance from the person to the TV screen went to use kinescopic tv given their diagonal. Rounded or flat monitors quickly tired eyes and were deprived of any advanced technology. The same applies to TVs. with a resolution of up to 720r. Modern plasma or LCD displays have higher parameters.

Flat screens do not create glare, and high-quality picture does not cause quick eyestrain.

Plasma has similar characteristics with LCD TVs and in terms of removal from the viewer, the installation panel is no different. Projectors, in turn, allow you to adjust the screen size, but the plane for the image will have to take care in advance.

Recommendations based on technical specifications

What do those technologies give a person? Their use has brought TVs to a new level, now it is not only a device for viewing news, but a complete means for entertainment and recreation. Planning the optimal distance of the screen from the eyes means creating a comfortable viewing, and to a lesser extent - taking care of security. With a close location of a large TV, the user will view all the pixels, and with a distant one, small objects will become imperceptible.

Permission tvs Full Hd or UHD (both flat and curved) can significantly reduce the viewing distance to a minimum and fully immerse yourself in the atmosphere of a movie or game. Thus, a device with a screen diagonal of more than 32 inches will fit well into a small room. For more specificity, you can bring a small summary table in which TV manufacturers indicate from what distance their brainchild can be watched without eye strain.

In the first case, the diagonal size is multiplied by 1.6, and in the second - by 0.8. Thus, it is easy to calculate optimal distance for the panel of any size.For example, with a diagonal of 32 inches, the indicators will be 1.3 and 0.7 m, respectively.

It is important to know! For watching TV in 3D, the same calculations are used, and for projectors it is necessary to adjust the diagonal based on the distance of the plane for displaying the image from the person.

Precautionary measures

As can be seen from the above, it is quite easy to calculate at what distance it is permissible to place a television panel. Although the indicators and approximate, they highlight the basic framework, which is easy to adjust without harm to the layout of the room. Also worth considering is that at what height will the TV panel hang.

Recent technologies have improved the matrix and allow you to remove unnecessary stress on the eyes, even if you watch several films in a row, the user's condition does not deteriorate to a great extent. But we must not forget that when viewing are involved and cervical spine. There are several important points, based on the recommendations of medical professionals.

1. Too close a distance provokes a strain on the muscles and joints, which is difficult to control with keen viewing.
2. Distant location will have a negative impact on the spine, as well as on the eyes, forcing to look closely to every detail.
3. When installing a TV, it is important to consider not only the distance at which you can watch it, but also the height, tilt angle.
4. Medical standards do not recommend watching TV for longer than 1.5–2 hours for adults, 1–1.5 hours for adolescents, and preschoolers are allowed to spend 15 minutes watching TV.

In conclusion, we can conclude that it is the diagonal determines the optimal distance from which it is permissible to watch TV. Simple calculations will help to correctly navigate when choosing a new model or redevelopment of the room. It is worth remembering that modern models can fasten on the wall with help various bracketsthus adjusting their position and viewing angle.