The manufacturers of led display screen have their own standard to test and judge the quality of product. I sum up 3 steps to identify led display screen as follow:

    First, ensure the best watching feeling. When you purchase small pixel pitch led display you should focus on the brightness of led display screen. According to the feature of traditional technology, reducing the brightness will lessen the gray scale level. And the gray scale level loss will influence image quality, which it means not enough brightness can be offer on display screen.

    Second, minimum led display screen has optimum viewing angle, you can calculate the optimum viewing distance with this formula: the optimum viewing angle distance=pixel pitch/.0.3~0.8. for example, pixel pitch is 6mm the optimum viewing angle is 7.5-20 meters.

    Third, for small pixel pitch led display screen, the smaller pixel pitch, the higher the resolution and the clearer image can be offer. But when you care about solution of display screen, you also need to consider the collocation between led display and signal transmit.