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TV size and viewing distance
2022-07-01 08:44:00 【Craftsman in Jianghu】
TV size refers to the diagonal length of TV screen , In inches (1 Inch =2.54 centimeter ). And at present, the standard screen ratio of most LCD TVs has become wide 16:9. According to Pythagorean Theorem , The length of the diagonal is √337( Radical sign 337) Open derived . The ratio of screen height to diagonal is 9÷√337.
Generally speaking, in the view of the industry , The actual viewing distance is of the screen width 2 About times .3 Good sense of presence , If it is less than this distance, it will be more tired , and 5 No shock when viewed from a distance of times .
Set the minimum size of TV set as A( Inch ), The maximum size of the TV set is B( Inch ), The viewing distance is L( centimeter ). Now? , We can build such an equation .
2.54A x (9÷√337)×5=L Available :A=L÷6.226
2.54Bx (9÷√337)×3=L Available :B=L÷3.736
In fact, the choice of TV size , There is a set of calculation formulas :
Maximum TV size ( Inch )= Viewing distance ( centimeter )÷3.736
Minimum TV size ( Inch )= Viewing distance ( centimeter )÷6.227
TV size ( Inch ) | Minimum viewing distance ( rice ) | Minimum viewing distance ( rice ) | |
32 | 1.2 | 1.99 | |
48 | 1.79 | 2.99 | |
50 | 1.87 | 3.11 | |
55 | 2.05 | 3.42 | |
65 | 2.43 | 4.05 | |
70 | 2.62 | 4.36 | |
75 | 2.8 | 4.67 | |
80 | 2.99 | 4.98 | |
86 | 3.21 | 5.36 | |
98 | 3.66 | 6.1 |
From the current overall TV sales situation ,43、55 as well as 65 Inch TVs are popular , among 43 Inches or so for the bedroom ,55、65 Inch is the largest size segment sold at present , Because its size can be well applied to the mainstream living room , therefore , Before you buy a TV, you might as well think about where to put it , Let's see how big the space of the house is .
It is suggested that we can choose a larger TV in the best size range when purchasing , Because I don't know until I actually use it , The bigger the TV is, the better it looks .
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