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For TVs, in theory, TVs with larger screen sizes can bring greater visual impact and immersion, but it does not mean that TVs with larger screen sizes are more suitable for every user. If you're struggling with what size TV to buy for your home, this article is definitely worth a read.
First, let's talk about the size of the TV. For the current family, there are houses ranging from 40 square meters to 400 square meters, and the placement of the TV is not only limited to the living room. Although most families still put the TV in the living room as the first choice. The width of the living room starts from 1.5 meters to at least 8 meters in luxury villas.
Due to the structure of the eyes, it can only see the range of about 150 degrees horizontally and 140 degrees vertically. Therefore, as long as the viewing angle is 40 degrees vertically and 60 degrees horizontally, you can watch TV clearly.
According to the current TV point of view, LCD TVs are all 16:9 design. If you sit close and watch a wide screen, distortion will occur in the left and right viewing range, and the viewing effect cannot be optimized.
Although small-sized TVs are becoming less and less, there are still some small room users using them. In a TV of about 40 inches, the appropriate viewing distance is about 1.0 meters. After all, the resolution of small-sized TVs can reach at least 1080P resolution, and it can be seen clearly at close range.
Regardless of the size of the TV, there is a reasonable viewing distance. If the screen size is too large and the viewing distance is too short, it is very likely that there is not enough visual space to cause the picture to be deformed, and it is impossible to see all the pictures, and it may also cause damage to the human eye. Therefore, the choice of TV size must not be sloppy.
In fact, there is a set of calculation formulas for TV size selection. You can also measure the size with this TV size calculator tool.
Maximum TV size (inches) = viewing distance (cm) ÷ 3.736
Minimum TV size (inch) = viewing distance (cm) ÷ 6.227
Why can it be accurate to three decimal places? We can see why we can draw such a conclusion in the following calculation process.
First, TV size refers to the length of the diagonal of the TV screen, in inches (1 inch = 2.54 cm). And at present, the standard screen ratio of most LCD TVs has become 16:9 wider. According to the Pythagorean theorem, the length of the diagonal is √337 (square root 337). The ratio of screen height to diagonal is 9÷√337.
Generally speaking in the industry, the actual viewing distance is about twice the width of the screen. At 3 times, the sense of presence is good. If it is less than this distance, it will be more tiring to watch, and it will not be shocking to watch at a distance of 5 times.
Let the minimum size be A (inch), the maximum size be B (inch), and the viewing distance be L (cm). Now, we can build such an equation.
2.54A×(9÷√337)×5＝L
2.54B×(9÷√337)×3＝L
Therefore:
A=L÷6.226
B=L÷3.736
Therefore, taking the mainstream family living room sofa as an example of 3 meters away from the TV, the size range of the TV can be calculated to be 48-85 inches. The distance calculated by this formula is the optimal distance between the human eye and the screen, and within this range is the most comfortable viewing distance for the human eye.
Judging from the current overall TV sales, 43-, 55- and 65-inch TVs are more popular. Among them, about 43 inches are suitable for bedrooms, and 55 and 65 inches are currently the largest selling size segment because its size can be very suitable for mainstream living rooms. Therefore, before buying a TV, you may wish to think about where to place the TV, and then see what size the space of the house is suitable for.
Finally, I would like to give you a suggestion. You can choose a larger TV in the optimal size range, because the larger the TV, the better the visual effect.
So what size TV should I buy?
First, let's talk about the size of the TV. For the current family, there are houses ranging from 40 square meters to 400 square meters, and the placement of the TV is not only limited to the living room. Although most families still put the TV in the living room as the first choice. The width of the living room starts from 1.5 meters to at least 8 meters in luxury villas.
Do I need to buy a TV based on the viewing distance from the TV?
Due to the structure of the eyes, it can only see the range of about 150 degrees horizontally and 140 degrees vertically. Therefore, as long as the viewing angle is 40 degrees vertically and 60 degrees horizontally, you can watch TV clearly.
According to the current TV point of view, LCD TVs are all 16:9 design. If you sit close and watch a wide screen, distortion will occur in the left and right viewing range, and the viewing effect cannot be optimized.
Although small-sized TVs are becoming less and less, there are still some small room users using them. In a TV of about 40 inches, the appropriate viewing distance is about 1.0 meters. After all, the resolution of small-sized TVs can reach at least 1080P resolution, and it can be seen clearly at close range.
Regardless of the size of the TV, there is a reasonable viewing distance. If the screen size is too large and the viewing distance is too short, it is very likely that there is not enough visual space to cause the picture to be deformed, and it is impossible to see all the pictures, and it may also cause damage to the human eye. Therefore, the choice of TV size must not be sloppy.
How to choose the TV size that is most suitable for you？
In fact, there is a set of calculation formulas for TV size selection. You can also measure the size with this TV size calculator tool.
Maximum TV size (inches) = viewing distance (cm) ÷ 3.736
Minimum TV size (inch) = viewing distance (cm) ÷ 6.227
Why can it be accurate to three decimal places? We can see why we can draw such a conclusion in the following calculation process.
First, TV size refers to the length of the diagonal of the TV screen, in inches (1 inch = 2.54 cm). And at present, the standard screen ratio of most LCD TVs has become 16:9 wider. According to the Pythagorean theorem, the length of the diagonal is √337 (square root 337). The ratio of screen height to diagonal is 9÷√337.
Generally speaking in the industry, the actual viewing distance is about twice the width of the screen. At 3 times, the sense of presence is good. If it is less than this distance, it will be more tiring to watch, and it will not be shocking to watch at a distance of 5 times.
Let the minimum size be A (inch), the maximum size be B (inch), and the viewing distance be L (cm). Now, we can build such an equation.
2.54A×(9÷√337)×5＝L
2.54B×(9÷√337)×3＝L
Therefore:
A=L÷6.226
B=L÷3.736
Therefore, taking the mainstream family living room sofa as an example of 3 meters away from the TV, the size range of the TV can be calculated to be 48-85 inches. The distance calculated by this formula is the optimal distance between the human eye and the screen, and within this range is the most comfortable viewing distance for the human eye.
Judging from the current overall TV sales, 43-, 55- and 65-inch TVs are more popular. Among them, about 43 inches are suitable for bedrooms, and 55 and 65 inches are currently the largest selling size segment because its size can be very suitable for mainstream living rooms. Therefore, before buying a TV, you may wish to think about where to place the TV, and then see what size the space of the house is suitable for.
Finally, I would like to give you a suggestion. You can choose a larger TV in the optimal size range, because the larger the TV, the better the visual effect.
