Importance of flatness of LED display

　　When touching the surface of the LED display screen with your hand, you may feel uneven. In the LED display industry, the professional term "flatness" is used to describe the degree of unevenness of the display surface, and the unit is mm.

　　Factors affecting flatness:

　　The flatness is mainly determined by the material and production process, which is divided into the flatness between modules and the flatness between boxes. The factors affecting the flatness between modules are PCB lamp board precision, bottom shell precision and frame precision; The factors affecting the flatness between boxes are the accuracy of frame and side lock.

　　Generally, the flatness of LED display screen is 0.1-0.3mm, and the flatness of small spacing display screen is required to be less than 0.1mm. The smaller the flatness, the smoother the display, the more uniform the color, and the better the viewing effect; The greater the flatness, the more likely the display is to be distorted, the more likely the color is to be broken, and the worse the viewing effect is.

　　When people choose to buy LED displays, they usually pay more attention to the spacing, resolution, brightness and price, but ignore the flatness. Fine points show quality. Small flatness is really a good quality screen.

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