For the current family,From 40 square meters to 400 square meters of houses,The placement of TV is not only limited to the living room,Based on the comprehensive entertainment sense of most Chinese families for TV,It will still be the first choice for most people in the living room,The width of the living room is from 1.Starting from 5 meters to luxury villas at least 8 meters. Do we need to choose according to the width of the TV from the human eye?
Although small-size TVs are becoming less and less at present, there are still some small room users in use, in 40-inch TVs, the appropriate **distance is in1.0 meters or so,After all, the resolution of small-size TVs now can at least reach1080P resolution,You can see it clearly at close range。
There is a common misconception about large-size TVs: the bigger the TV, the more hurtful it is to the eyes. In fact, it is not, blue light emissions, too close ** distance, and blurry image quality are the real culprits of hurting the eyes. Therefore,Choosing a TV is not only about the size,It should also be measured in combination with the comprehensive performance of the TV。
Of course,No matter what size the TV is,There is a reasonable**distance,If the screen size is too large**The distance is too short,It is very likely that the picture is deformed due to insufficient viewing space and you can't see all the pictures,It may also cause damage to the human eye。 Therefore, the choice of TV size must not be sloppy.
Keep the following formula in mind
Maximum TV size (inches) = **Distance (cm) 3736
Minimum TV size (inches) = **Distance (cm) 6227
Why it can be accurate to three decimal places, we can see why we can come to such a conclusion in the following estimation process.
First, TV size refers to the length of the diagonal of the TV screen, measured in inches (1 inch = 2.).54 cm). And at present, the standard screen ratio of most LCD TVs has become wider16:9。 According to the Pythagorean theorem, the length of the diagonal is 337 (root number 337) open. The ratio of screen height to diagonal is 9 337.
Generally speaking, in the eyes of the industry, the actual viewing distance is about twice the width 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 b (inches), and the *distance be l (cm). Now, we can build such an equation.
2.54a×(9÷√337)×5＝l
2.54b×(9÷√337)×3＝l
Available: a=l 6226
b=l÷3.736
Therefore, taking the distance between the sofa in the living room of the mainstream family and the TV as an example, it can be calculated that the size range of the TV is 48-85 inches. The formula calculates the optimal distance between the human eye and the screen, which is the most comfortable distance for the human eye**. 75Inch is currently the largest selling size segment,Because it can be adapted to most mainstream living rooms,So,Before buying a TV, you might as well think about placing the TV in**,Then see what size the space of the house is suitable for。