The wall of the living room is about 3 meters wide. The sofa is about 2 3 meters from the wall, whic

The wall of the living room is about 3 meters wide, and the sofa is about 2-3 meters away from the wall, which is suitable for buying a 46-50 inch TV.

The safe distance from the TV screen to the viewpoint is more than meters, and it is recommended to measure how far the viewing distance is before buying a TV. The right size can get a better viewing effect, and the size deviation is too far, which will cause visual fatigue for a long time.

Generally speaking, the viewing distance is meters, suitable for 32-inch TVs; Viewing distance meters, suitable for 37-inch TV; Viewing distance meters, suitable for 40-inch TV; Viewing distance meters, suitable for 46-inch TV; The viewing distance is 3 meters, suitable for 50-inch TV. And at the same viewing distance, the 16:9 TV can be selected in a larger size, and the 4:

The size of the 3 TV can be slightly smaller.

When many friends buy a TV, they are keen on the large size. In fact, the bigger the TV screen is not the better, it is related to the size of your room, to be exact, the distance from the human eye to the screen, we call it the viewing distance. According to the summary of many high-quality posts on the Internet, there is a proportional relationship between screen size and viewing distance, as shown in the following formula.

Maximum TV size (inches) = viewing distance (cm).

Minimum TV size (inches) = viewing distance (cm).

Maybe friends who have the spirit of digging into the bottom will express their doubts, is this formula accurate, and how did you get it. Then, if you have patience, you can listen to the calculation method.

First of all, we need to know that TV size refers to the length of the diagonal line of the TV screen, measured in inches, 1 inch = centimeter. Moreover, the standard screen ratio of digital TV is 16:9.

According to the Pythagorean theorem, the length of the diagonal is 337 (root number 337). The ratio of screen height to diagonal is 9 337.

Next, it's time for us to solve the problem. Generally speaking, in the eyes of the industry, the actual viewing distance is 3-5 times the height of the screen. The sense of presence is good at 3 times, if it is less than this distance, it will be more tiring, and watching at 5 times the distance is not shocking.

Let the minimum size be A (inches), the maximum size be B (inches), and the viewing distance is L (cm). Now, we can build such an equation.

Available: A=L

B=L That is: for example, if the distance between the sofa and the TV cabinet is 3 meters, the size range of the TV is 48-80 inches. In the same way, you can also adjust the viewing distance to the right size of the TV in your home today.

The formula is the same as summarized by netizens, and 3 decimal places are taken when calculating 337, so the ratio of the distance to the minimum size is different. After watching it, I feel dizzy, I recommend that you calculate it when you go back to buy a TV, maybe it can help you.

It's okay to be a little smaller than the size of your sofa.

Size is not the biggest issue. It's the distance. The most comfortable distance for the average person is twice the height of the TV. So you can design your own based on this choice.

Personally, I feel that 21 inches is OK.