The development of electronic industry technology is very rapid and has revolutionized people’s lifestyle. As one of the oldest of the eighties, having a television is a dream for many families. At that time, who can think of the television opportunity after 30 years? Not to think but to dare to think that the development speed of television has exceeded people's imagination. As the screen gets bigger and bigger, the weight keeps decreasing. According to this development trend, Xiao Bian is thinking that the future of television will not be as light as a paper, large enough to cover a wall in the home? This throws up a question, do we really want to pursue the big screen when buying a TV?
For CRT (CRT) televisions, the display area is generally small, which is for a reason. The traditional imaging principle of the CRT TV is that the electron gun emits an electron beam to bombard the red, blue, and green phosphors on the phosphor screen. There is a certain distance between the electron gun and the CRT. When the TV screen is enlarged, the display must be enlarged. volume. On the other hand, because the TV picture tube is a high-vacuum electron beam tube, its surface area is under tremendous pressure, so the screen of a CRT TV is generally made into a spherical shape to withstand compression, and the larger the TV, the greater the bearing capacity is. Big, the more likely to burst. The previous CRT TV screen size is generally 21, 25 and 29 inches in three, the largest not more than 34 inches.
The best size of flat-screen TV is 47 inches
In recent years, due to the significant decrease in the cost of flat-panel televisions and the small space occupied by their light weight, they have gradually replaced CRT TVs. Many families are keen to buy large-screen flat-screen TVs in pursuit of visual senses. However, for flat-panel TVs, it is currently recognized that a matching principle of viewing distance and screen size: refers to the best effective viewing angle from the same distance, high-definition picture sense requires a 16:9 widescreen, large-size tablet to achieve the best display effect. If the resident family's distance to watch TV is 1.7, 2.0, 2.4, 2.5, 2.7, 3.0, and 3.3 meters, you want to maximize the effect of television resolution, the required size of the flat-panel LCD TV is 26, 32, 37, 40. , 42, 47, 52 inches. Under this matching principle, people watch television can get the immersive feeling.
At present, most families in China are restricted by living room conditions. The viewing distance is generally about 3 meters. According to this matching principle, we can see that the size of the current mainstream flat-screen TV in China is 47 inches. Therefore, we usually do not need to blindly obey the merchant's "big screen, the better" propaganda, but to make rational choices according to the actual situation.
The best size of flat-screen TV is 47 inches
In recent years, due to the significant decrease in the cost of flat-panel televisions and the small space occupied by their light weight, they have gradually replaced CRT TVs. Many families are keen to buy large-screen flat-screen TVs in pursuit of visual senses. However, for flat-panel TVs, it is currently recognized that a matching principle of viewing distance and screen size: refers to the best effective viewing angle from the same distance, high-definition picture sense requires a 16:9 widescreen, large-size tablet to achieve the best display effect. If the resident family's distance to watch TV is 1.7, 2.0, 2.4, 2.5, 2.7, 3.0, and 3.3 meters, you want to maximize the effect of television resolution, the required size of the flat-panel LCD TV is 26, 32, 37, 40. , 42, 47, 52 inches. Under this matching principle, people watch television can get the immersive feeling.
At present, most families in China are restricted by living room conditions. The viewing distance is generally about 3 meters. According to this matching principle, we can see that the size of the current mainstream flat-screen TV in China is 47 inches. Therefore, we usually do not need to blindly obey the merchant's "big screen, the better" propaganda, but to make rational choices according to the actual situation.
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