In recent years, with the continuous upgrading of flat-panel television technology, the size has increasingly tended to be large-screen, and many consumers are blindly pursuing large-sized, but they neglected the viewing distance of the living room itself. The final television is placed in the living room, although it is very Grade, but it's especially hard to watch.
So for the living room TV, what size should be suitable to buy? We all know that when there is a certain distance, when the size of the TV is too large, there is no way to see the screen. You need to turn your head or turn your eyes when you watch. In the process of switching the screen, the eyes need to constantly adjust, and the big screen shows the children. The mind is in a state of excitement for a long time, and it is easy to delay learning and make it easier to be nearsighted. When the size is too small, images on the screen cannot be clearly seen. This can easily cause eye fatigue.
In general, the generally accepted view is that the viewing distance is estimated from 4 to 6 times the screen diagonal. Obviously this does not take into account the different algorithms of different TV sets. This is only suitable for the CRT TV era.
Therefore, before we buy LCD TVs, we must first measure the size of the living room to see how much the living room is suitable for buying LCD TVs. Under normal circumstances, the best viewing distance for LCD TVs is TV screen diagonal x0.0635. Formula to calculate the most suitable size.
Finally, experts suggest that even if the right TV is selected, it is not easy to make your eyes tired, but you should still do eye care. After watching TV for a long time, wash your face with clean water, remove dust, and reduce the impact of radiation; look at 1 hour to rest for at least 5 minutes, otherwise it is still unfavorable for eye health.
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The 7-inch tablet can be used as the golden size of a tablet computer. It is small and portable. It can be used at home and outdoors. You can browse the web, watch videos and play games. It is a household artifact. Although the size of the 7-inch tablet is inclined to the tablet, the function is more inclined to the mobile phone, so it can also be used as a substitute for the mobile phone. Compared with other sized tablets, the 7-inch tablet has obvious advantages in appearance and weight. Both the body size and the body weight have reached a very reasonable amount.
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