About a month or so ago, Sharp released a 70-inch 8K TV. You may not even think of it. The best viewing distance of this TV official logo is 68cm, which is basically equivalent to the length of an adult's arm and is so close to the TV. Can eyes stand it?
In addition, some time ago, a consumer purchased TV in a physical store. The store staff recommended a 65-inch TV according to the 4 meter viewing distance provided by consumers. But after the consumer bought it, he thought that the 65-inch TV was too large and asked for a return. .
What is the correlation between TV size and viewing distance? This is something that must be made clear before buying a TV.
Many televisions will give the best viewing distance for TVs of different sizes on the product introduction page, but their reference significance is not great. For example, the recommended viewing distance of Xiaomi's recommended 65-70 inches is 2.2-4.2 meters. This distance can be satisfied in most living room environments. In addition, it also prompts “This distance is the recommended viewing distance. In actual viewing, the larger the TV size, the better The better," said it plainly, or bought it directly.
The TV viewing distance given by Samsung is relatively clear. For example, the viewing distance of a 55-inch TV is 3-3.5 meters, and the viewing distance of a 65-inch TV is more than 3.5 meters. Is this data worth referring to?
In fact, there are many formulas for calculating the best viewing distance on the Internet. The most popular is viewing distance = LCD TV diagonal distance x 3.
Take the 55-inch TV, the diagonal distance is 55 脳 2.54 (1 inch is equal to 2.54 cm), and the final result is 4.19 meters. If the calculation is reversed, if the viewing distance is 3 meters, the corresponding TV screen size is about It's 39 inches and it's obviously a bit small in the living room, so this formula doesn't apply right now.
When discussing TV size and viewing distance, the screen resolution should also be taken into account.
As the size of the TV screen continues to increase, the resolution has also increased. 4K has been widely used, 8K is already on the road, and the definition is getting higher and higher. To ensure better viewing results, you need to constantly zoom in to the viewing distance.
For example, when we look at the SDTV signal on a 55-inch 4K TV, we obviously find that the resolution of the image is not high, but we don't have the same viewing distance to use a small-size TV.
Therefore, a reliable maximum viewing distance calculation formula should be combined with the resolution. The data in the following table is worth referring to. The “H†in the last three columns of 3H, 4H, and 5H refers to the height of the TV screen. It can be seen that 3H is very close to the 1080-level data on the left side. Currently, most HDTV signals and network programs of cable TV can reach 1080P. Sharpness, based on this data, determines the size of the TV.
The TV screen is not as big as possible. With the viewing distance, according to the 3H calculation formula, the appropriate TV size can be calculated quickly, so that the TV will not look and feel less after buying it home.
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