The choice of TV size is related to our viewing distance and the size of the TV background wall. When the TV’s background wall is large enough, the TV’s The size should also be relatively large. Under normal circumstances, the width of the background wall of the TV is 2-2.5 times the width of the TV. In a living room of 20-30 square meters, the TV’s The distance is between 3-5, and the size of the TV purchased at this time is 29-39 inches is the best. The living room area is between 30-40 square meters, and the TV size it chooses should be between 43-56 inches.
When we understand the choice of TV size, let’s first take a look at the size of the TV between the different sizes of the TV.
The 17-inch TV is 43.18 cm long, 34.52 cm long, and 25.89 cm wide.
The 19-inch TV is 48.26 cm long, 38.16 cm long and 28.62 cm wide.
The 34-inch TV is 86.36 cm long, 69.08 cm long and 51.81 cm wide.
The 42-inch TV has a diagonal length of 106.68 cm, a length of 92.96 cm and a width of 52.29 cm.
The 47-inch TV is 119.38 cm long, 104 cm long and 58.5 cm wide.
When buying a TV, we should also know how to calculate the size of the TV. When we choose a TV, the bigger the screen of the TV, the better, the important thing is the TV we choose The camera needs to match our optimal viewing distance. The optimal viewing distance for TV refers to the distance between the human eye and the TV screen. The optimal viewing distance of a TV also needs to be calculated. Below I will introduce a formula for calculating the optimal viewing distance of a TV: optimal viewing distance = screen height ÷ vertical resolution × 3400. Using this formula, we can get an optimal TV viewing distance, and it is also convenient for us to choose the size of the TV.
After my introduction above, we all know that the size of the TV is actually related to the best viewing distance of the TV. Below I will briefly introduce the dimensions of several TVs. size and optimal viewing distance.
25 inches 23 inches 23×1.524=35.052cm 105～175cm
34 inches 32 inches 32×1.524=48.768cm 146～244cm
38 inches 36 Inches 36×1.524=54.864cm 165～274cm
43 inches 42 inches 42×1.524=64.008cm 192～320cm
60 inches 59 inches 59×1.524=89.916cm 270～450cm
How to calculate the size of the TV
Convert the diagonal length of the screen to inches to calculate the value of the diagonal inch length and the diagonal inch value, 1 inch = 25.4mm, the nominal size of the TV, including the TV The part contained inside the frame of the machine.
Source website: [360 Questions and Answers] How to calculate the size of the TV
According to the right triangle: 345 theorem and the stipulation of 16:9. H=W*9/16 The sum of the squares of the width and height (H2+W2) is equal to the square of the diagonal (L2). Namely: H2+W2=L2 Simple two-dimensional quadratic equation. The calculation result of a TV with a diagonal length of 24 in 16:9 is width: 20.9 inches and height “11.8 inches.
How to calculate the size of the TV?
The size of the TV Size refers to the size of the diagonal of the screen, in inches.
1 cm = 0.3937 inches, 1 inch = 2.54000508 cm.
It is the size of the two diagonal corners of the screen, generally expressed in inches, but the screen There is no specific industry standard for the size, and different manufacturers have different regulations for it. Some are the normal display range of the screen, while others refer to the total diagonal length of the picture tube. Therefore, I often hear about consumption. The user’s claim to the screen is inconsistent with the actual situation and the business is in conflict.
