With the progress of social development, people increasingly pursue comfort, convenience, and material diversification. The LED display has risen in such a demand. Now you can see the LED display on the streets and alleys. The main reason is that it is convenient and stable, and the content can be changed at will, and it can be used in a variety of occasions. LED displays basically get rid of traditional advertising methods. However, the disadvantages of LED displays are also obvious. They are more prone to faults such as blind lights and inconsistent brightness. The occurrence of these faults is mostly related to the manufacturer’s technology. It also has a certain relationship with the working environment of the LED display. Of course, the most important thing is to look at the light-emitting components and driving components used by the display manufacturers.

  So is there a way to avoid the problem of inconsistent brightness of LED light-emitting tubes as much as possible? The reason for avoiding it as much as possible is actually due to the limited technical level and the lack of absolute precision, so inconsistent brightness in the production process is inevitable. At this stage, the countermeasures adopted by most manufacturers are to divide the grades after the production is completed, that is, put the two adjacent grades with the smallest brightness difference together, so that the consistency of the LED brightness can be slightly adjusted. The biggest disadvantage of adopting this method is that the yield rate will be very low. If there are too many mismatches, there will be too much inventory. This is actually not conducive to long-term development. Therefore, the general manufacturers will control the brightness difference at about 20%.

  The driving components used in LED display screens are basically constant current driving chips. For example, the driving components are generally constant current driving chips, such as MB15026, LD1018, and so on. These chips contain 16 constant current drive outputs, which can be used to set the current output value. The error of each output of the same chip is controlled within 3%, and the output error of different chips is controlled within 6%.

  It is normal for the brightness error of 25% between the pixels of the LED display to appear. If the LED tube used is not the same grade and type of product, the brightness error may rise to more than 40%.

  Outdoor full color pillar screen

  In fact, the root cause of the blurred screen is that the brightness of the LED display is inconsistent, and the correction equipment cannot be used to correct it in the later stage. It can only be achieved by the manufacturer's production, please contact your service provider or manufacturer to request a solution.

  With years of experience in serving our customers, strict management and control procedures, unique service system and excellent quality, Topsun Optoelectronics is willing to work with friends to promote the popularization of LED display applications. If you have any problems with LED display technology, please contact us.