Solution:
1. Combining the two aspects of picture quality experience and viewing comfort, the recommended viewing distance is calculated as follows.
① FHD TV (i.e. 1080P Full HD TV), the recommended viewing distance is 3 to 4 times the height of the effective display area of the screen.
② UHD TV (i.e. 4K UHD TV), the recommended viewing distance is 1.5~3 times the height of the effective display area of the screen.
③The recommended viewing distance for 8K TV can be referred to 4K UHD TV.
2. Some Xiaomi TVs "recommended viewing distance" interval values are as follows:
| TV Size/HD | Recommended viewing distance (sofa to TV) unit: m / m | Recommended viewing distance (according to the width of the living room) unit: m / m | Recommended hanging height (TV to floor) unit: cm/cm | |
| Prefer to look flat | Likes to look up slightly | |||
| 32-inch HD | 1.2~1.6 | 1.7~2.1 | 100 | 120 |
| 40-inch HD | 1.5~2.0 | 2.0~2.5 | 95 | 115 |
| 43 inch HD | 1.6~2.1 | 2.1~2.6 | 93 | 113 |
| 43-inch 4K | 0.8~1.6 | 1.3~2.1 | 93 | 113 |
| 48-inch 4K | 0.9~1.8 | 1.4~2.3 | 90 | 110 |
| 50-inch 4K | 0.9~1.9 | 1.4~2.4 | 89 | 109 |
| 55-inch 4K | 1.0~2.1 | 1.5~2.6 | 86 | 106 |
| 58 inch 4K | 1.1~2.2 | 1.6~2.7 | 84 | 104 |
| 60 inch 4K | 1.1~2.2 | 1.6~2.7 | 83 | 103 |
| 65 inch 4K | 1.2~2.4 | 1.7~2.9 | 80 | 100 |
| 70 inch 4K | 1.3~2.6 | 1.8~3.1 | 76 | 96 |
| 75 inch 4K | 1.4~2.8 | 1.9~3.3 | 73 | 93 |
| 77 inches 4K | 1.4~2.9 | 1.9~3.4 | 72 | 92 |
| 82 inch 4K/8K | 1.5~3.1 | 2.0~3.6 | 69 | 89 |
| 85 inch 4K | 1.6~3.2 | 2.1~3.7 | 67 | 87 |
| 86 inch 4K | 1.6~3.2 | 2.1~3.7 | 66 | 86 |
| 90 inch 4K | 1.7~3.4 | 2.2~3.9 | 64 | 84 |
| 98 inch 4K | 1.9~3.75 | 2.4~4.25 | 58 | 78 |
| 100 inch 4K | 1.9~3.75 | 2.4~4.25 | 57 | 77 |
① For the same size TV, the TV with high resolution is recommended to be viewed at a closer distance to feel the fine quality of the picture. It is recommended that the best viewing distance for 4K TVs is 1.5 times-3 times the height (height refers to the height of the effective display area of the TV screen), and HDTVs are 3 times-4 times the height, which helps to visually eliminate the graininess of the general picture quality picture.
②Game advice: for general games, it is recommended that the brightness is turned down. If not blinding, you can sit closer; some games are easy to dizzy at close range, it is recommended to sit farther; driving games can sit closer for a better experience.
③Hanging installation height recommendation: If the TV is installed on the indoor wall, in your usual viewing position, the eyes should be roughly flush with the middle of the screen (this height is generally 120 cm), the effect is better, the above "recommended hanging height" that is based on this factor.
④Viewing distance and hanging height please choose according to personal experience, the above data are suggestions, please choose or decide according to your personal preferences and actual needs.
Supplement：
①The curvature of TV 3S<65-inch curved TV> is 4000R, that is, the viewing distance is about 4 meters, which is the recommended distance from the angle of curvature; the recommended distance in the figure above is 1.2 for "Viewing Comfort/Picture Delicateness" m~2.4m can also be used as a reference.
②The curvature of 4000R means that the screen can form a circle with an approximate radius of 4000mm, and the audience's eyes are exactly in the center of the circle when watching from a distance of about 4 meters.