The relationship between LCD TV size and viewing distance and the size of the room (living room)

How to get the viewing distance based on the LCD TV size, how to select the LCD TV size by viewing distance, 20-square-meter living room (room) should choose how big the size of the LCD TV, what is the viewing distance to make people's eyes when watching TV programs Not tired, let's talk about LCD TV size and viewing distance and the size of the room (living room).



The relationship between LCD TV size and viewing distance

Under normal circumstances, the purchase of LCD TVs must first select the size of the selected screen point distance and brightness, therefore, and the viewing distance is the most direct or the size of the screen, here gives some advice on the screen size and viewing distance.

15 inches 1.52 meters
17 inches 1.73 meters
20 inches 2.03 meters
21 inches 2.13 meters
25 inches 2.54 meters
29 inches 2.95 meters
30 inches 3.05 meters
34 inches 3.45 meters
42 inches 4.27 meters
43 inches 4.37 meters
45 inches 4.57 meters
50 inches 5.08 meters
55 inches 5.59 meters
60 inches 6.10 meters
70 inches 7.11 meters

Distance between viewing distance and TV

Dot pitch refers to the distance between the screen pixels of the LCD monitor. It is proportional to the screen size and inversely proportional to the screen resolution. The screen with high resolution and low dot pitch has better performance on the details of the screen. If you look at the distance too close and the screen is too large, the screen will be obviously meshed, and the flicker will seriously affect the screen effect. Therefore, it is hoped that TVs that are watched in close quarters will not only use small-screen TVs, but also pay attention to the style with the smallest dot pitch. On this aspect, LCD TVs have obvious advantages. '

Viewing distance and brightness of the TV

The brightness parameters of LCD TVs vary greatly from 300-1000 nit. Higher two degrees will produce a harsh feeling, even burning eyes, too low brightness Eyes must be highly concentrated, very easy to fatigue, long-term use of low-brightness products more likely to suffer from myopia. The intensity of light in communication will decrease with distance. Generally, the energy of television is mainly spread in the range of up and down, 160 degrees, and so on. The theory requires that the light intensity transmitted to the human eye is between 85 and 110 nit. This is to ensure visual health. An ideal value. The viewing distance is usually about two-hundredths of the brightness of the TV screen.


How to independently determine the viewing distance and the size of the TV

The larger the screen of the television, the greater the viewing distance required. This is because the viewing angle is limited when the human eye is not rotating. The reasonable distance is required to allow people to see the eyes and head without turning them. Clear every corner of the TV screen. It is generally recommended that the viewing distance be 3-4 times the height of the TV.


The calculation method is as follows: 1 inch = 2.54cm, calculated by 3 times the screen size, such as 46 inches the best viewing distance is 46X2.54X3 = 350cm or 3.5 meters, and so on.

The relationship between the size of the LCD TV and the viewing distance and room size:

View straight distance within three meters, room size is less than 20 square meters, select 25-29 inch LCD TV;
To see a straight line distance of about three meters, the room size is 20 to 30 square meters, choose a 29-34 inch LCD TV;
To see a straight line distance of about 4 meters, the room size is 30 to 40 square meters, choose 35-43 inch LCD TV;
View a straight line distance of more than four meters. The size of the room is more than 50 square meters. Choose a LCD TV with a size of 43 inches or more.




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