A good outdoor full-color LED must adapt to different temperatures, different weather, can be used normally in various occasions is very necessary, but also have a good effect for far and near light, especially large-scale concerts At the time, special effects lighting will have to be particularly good, but sometimes we find that the brightness of the LED is not the same?
Outdoor full-color LED display brightness is inconsistent, what are the reasons? In this Run Optoelectronics to remind you that cause full-color display brightness inconsistency, is due to the light-emitting components and drive components to determine the two factors.
Luminous elements, ie, LEDs, are inconsistent in brightness during production. However, the LED display manufacturer adopts a countermeasure to perform binning after the completion of production. The smaller the difference in brightness between the two adjacent bins is, the better the consistency is, but the more serious the phenomenon of low yield and high inventory will be caused. Therefore, each manufacturer controls the brightness difference between two adjacent levels to about 20%.
The driver element is generally a constant current driver chip, such as MBl5026. These chips contain 16 constant-current drive outputs. The current output value can be set with resistors. The error of each output of the same chip is controlled within 3%. The output error of different chips is controlled within 6%.
It is normal for 25% brightness error to appear between each pixel of the LED display. If the LED light emitting tube used is not of the same grade and type, the brightness error will rise to more than 40%.
It is also worth noting that the full-color LED display brightness is inconsistent, is the root cause of Huaping, can not be corrected with the correction equipment, only rely on LED display manufacturers manufacturing process to achieve. Therefore, please contact your service provider or manufacturer for a solution to purchase the screen with inconsistent brightness.
Therefore, when we encounter LED display brightness is not the same, do not need special urgency, as long as the correct way to find the right problem, then naturally it can be very easy to solve similar abnormal situations.
Blow Molding Screw Barrel,Molding Screw Barrel, Blow Screw Barrel,injection screw and barrel
Zhejiang Zhongsu Screw Co., Ltd. , https://www.zhongsuscrew.com