Consider viewing distance issues
The mainstream size in the market is now between 42 inches and 55 inches. The size of the TV that users can choose should be determined according to the size of the living room. That is, the actual distance of the TV from the viewer. If the distance is too far or too close, it will have a bad influence. For example, if the viewing distance is too close, it is easy to cause visual fatigue of the user, and the picture will have a slight graininess and become less real. If the viewing distance is too far, the details in the picture will be lost. When the user watches the TV, some small fonts such as subtitles will be invisible, which will affect the user's viewing.
| LCD TV best viewing distance comparison table | |
|---|---|
| LCD TV screen diagonal size | Recommended best viewing distance |
| 26" TV | 1.7 meters |
| 32-inch TV | 2.0 meters |
| 37-inch TV | 2.4 meters |
| 40-inch TV | 2.5 meters |
| 42" TV | 2.7 meters |
| 47-inch TV | 3.0 meters |
| 50-inch TV | 3.1 meters |
| 55-inch TV | 3.5 meters |
| 58-inch TV | 3.7 meters |
| 60-inch TV | 3.8 meters |
How to calculate the distance between TV and viewer? After a long-term research report, a simple calculation formula is obtained: the optimal viewing distance of the LCD TV = the diagonal of the LCD TV screen x0.0635 . For example, a 60-inch LCD TV, the calculation result is 60x0.0635 = 3.81 meters ≈ 3.5 meters. So for users who buy a 50-inch TV, the distance of 3.1 meters is the best viewing distance. Of course, we can also calculate the size of the TV according to the distance. For example, if the viewing distance is 2.7 meters, then 2.7 ÷ 0.0635 = 42.520 ≈ 42 inches, then it is best to buy a 42-inch TV.
Therefore, taking it for granted that the smart TV screen is as large as possible, there is really no scientific basis, and blind pursuit of the big screen is not conducive to eye health. With the above calculation method, everyone can choose the appropriate screen size when purchasing a smart TV.
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