1. Check the flatness of the screen: In order to ensure that the displayed image does not distort, the surface flatness of the outdoor LED display screen must be maintained within ± 1mm. If this requirement is not met and local unevenness occurs, it will lead to blind spots in the visual angle of the outdoor LED display screen when playing videos. Therefore, it can be said that flatness is a major factor in judging high-quality outdoor LED displays.
2. Check the brightness of the screen: In general, the brightness of outdoor LED display screens should reach 1500cd/m2 or above to ensure normal display operation, otherwise it will be difficult for people to see the played image content clearly due to insufficient brightness. So if you want to buy a good outdoor LED display screen, you need to look at the quality and brightness parameters of its LED beads.
3. Check the white balance of the screen: The screen will only display the purest white when the ratio of red, green, and blue is 1:4.6:0.16. Therefore, if the display screen produced by outdoor LED display manufacturers deviates slightly from the ratio of the three primary colors, it will cause a deviation in the white balance, which will affect the display quality of outdoor LED displays. Therefore, it is also important to check the white balance when purchasing.