On the question of how to calculate the size of TV, it is mainly necessary to have a certain mathematical foundation. What we usually use is that the size of TV is measured by the diagonal length of the screen. For example, what we usually call 29 inches, 42 inches, etc. refers to this indicator.
According to the standard of 1 inch =2.5399998 cm (we calculate by 2.54 here), we can get the following table: 14 inch =35.56 cm.
15 inch =38. 1 cm
17 inch =43. 18 cm
20 inches =50.8 cm
2 1 inch =53.34 cm
25 inches = 63.5 cm.
29 inches =73.66 cm
30 inches =76.2 cm
34 inches =86.36 cm
42 inches = 106.68 cm
43 inches = 109.22 cm
45 inches =114.3cm.
50 inches = 127 cm
55 inches = 139.7 cm
60 inches =152.4cm.
70 inches = 177.8 cm.
100 inch =254 cm
The above table is a common TV size, but there are many kinds of TVs on the market at present, and there are many strange sizes, such as Changhong and 38-inch rear projection. Calculation method is the same as above. However, the nominal number in some color TV models is not necessarily the size of the TV set, which needs attention here. When using this table, be flexible. Considering that different brands of TV sets have different shell sizes, you need to make reasonable judgments according to the actual situation.
TV size specification:
14 inch diagonal length is 35.56 cm, long side length is 28.44 cm, short side length is 2 1.33 cm, and the aspect ratio is 4:3.
The diagonal length of 17 inch is 43. 18 cm, the long side length is 34.52 cm, the short side length is 25.89 cm, and the aspect ratio is 4:3.
19 inch diagonal length is 48.26 cm, long side length is 38. 16 cm, short side length is 28.62 cm, and the aspect ratio is 4:3.
2 1 inch has a diagonal length of 53.34 cm, a long side length of 42.64 cm, a short side length of 3 1.98 cm, and an aspect ratio of 4:3.
The diagonal length of 25 inches is 63.50 cm, the long side length is 50.80 cm, the short side length is 38. 10 cm, and the aspect ratio is 4:3.
The screen size of a 26-inch LCD TV (calculated at a ratio of 4:3) is 52.832cm long and 39.624cm wide.
The screen size of a 28-inch LCD TV (calculated at a ratio of 4:3) is 56.896 cm long and 42.672 cm wide.
The diagonal length of 29 inches is 73.66 cm, the long side length is 58.92 cm, the short side length is 44. 19 cm, and the aspect ratio is 4:3.
The screen dimensions of a 32-inch LCD TV are: length 65.024cm, width 48.768cm (16: 9), width 69cm, diagonal 34cm, length 86.36cm, length 69.08cm and short 5 1.865438.
The diagonal of 37 inches is 93.98 cm long, and there are two aspect ratios. The long side length of 16:9 is 8 1.76 cm, and the short side length is 45.99 cm. The long side of 4:3 is 75. 16 cm, and the short side is 56.37 cm.
The diagonal length of 40 inches is 10 1.60 cm, and there are two aspect ratios. The long side length of 16:9 is 88.48 cm, and the short side length is 49.77 cm. The long side of 4:3 is 8 1.28 cm, and the short side is 60.96 cm.
The diagonal length of 42 inches is 106.68 cm, and there are two aspect ratios. The long side of 16:9 is 92.96 cm and the short side is 52.29 cm. The long side of 4:3 is 85.32 cm, and the short side is 63.99 cm.
The diagonal length of 45 inches is 1 14.30 cm, and there are two aspect ratios. The long side length of 16:9 is 99.52 cm, and the short side length is 55.98 cm. The long side of 4:3 is 9 1.44 cm, and the short side is 68.58 cm.
The diagonal length of 47 inches is 1 19.38 cm, and there are two aspect ratios. The long side length of 16:9 is 104 cm, and the short side length is 58.50 cm. The long side length of 4:3 is 95.48 cm, and the short side length is 71.61cm.
The diagonal length of 49 inches is 124.46 cm, and there are two aspect ratios. The long side length of 16:9 is 108.48 cm, and the short side length is 6 1.02 cm. The long side of 4:3 is 99.56 cm and the short side is 74.67 cm.