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Anonymous users2024-01-24It doesn't matter what the size of the area is,It's the distance from your sofa to the TV that is the most important,The size of the TV multiplied is basically the minimum distance suitable for watching movies,Note that it is at least,21。
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Anonymous users2024-01-23The size of the TV should be determined according to the straight-line distance from the TV screen to the human eye, and you should buy a 47 52-inch LCD TV.
Attached: Comparison table of the best viewing distance between flat-screen TVs and CRT old-fashioned TVs:
Viewing distance (m) 16:9 Flat-screen TV 4:3 CRT TV.
Diagonal (inch) Diagonal (inch).
The closer a person is to the TV, the more irritated they are, and the more likely they are to cause eye strain. Therefore, the placement of the TV should be based on the principle of suitable for the physiological requirements of the eye. The best place is to be a meter away from the TV and slightly below eye level.
When it is too high, it is easy to cause fatigue by looking up at the eyes due to raising the head; If it is too low, it is easy to get tired because you need to look down. Of course, you should also be careful not to tilt the TV too much, otherwise, tilting your head to look at it will not only make the image unclear, but also more likely to cause eye strain. When watching TV, you should take a short break for no more than 60 minutes at a time, and it is best to close your eyes and rest.
Someone has done a survey that if you watch TV for more than 4 hours without a break, you can lose two lines of vision (. Watching TV for a long time is not only easy to make children weak and obese, but also prone to myopia. If you have a child who is already suffering from myopia, it is best not to watch TV for more than half an hour at a time, and you should rest for 10 minutes.
In addition, the room should maintain a certain brightness when watching TV. That is to say, the contrast between the brightness of the TV and the brightness around the room cannot be very different, otherwise it is easy to cause eye fatigue and will also promote the formation and development of myopia. Therefore, a low-degree lamp should be kept indoors, and its brightness should be suitable for reading the handwriting of the book.
The optimal distance for watching TV should be 5-7 times the height of the TV screen. For example:
A 20-INCH (51CM) COLOR TV SHOULD HAVE A VIEWING DISTANCE OF METERS.
A 21-inch (54CM) color TV should have a viewing distance of meters.
A 25-INCH (64CM) VIEWING DISTANCE SHOULD BE METERS.
29 INCHES (74CM) VIEWING DISTANCE SHOULD BE METERS.
34 INCHES (86CM) VIEWING DISTANCE SHOULD BE METERS.
In addition, the room should maintain a certain brightness when watching TV. That is to say, the contrast between the brightness of the TV and the brightness around the room cannot be very different, otherwise it is easy to cause eye fatigue and will also promote the formation and development of myopia. Therefore, a low-degree lamp should be kept indoors, and its brightness should be suitable for reading the handwriting of the book.
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