Full -color LED display screen box sports correction technology application

　　The full -color LED display box can significantly improve the display quality of the post -splicing screen, and the efficiency of the on -site correction is relatively high. It is not limited by time and venue, and the cost is also low. Therefore, box correction technology will become an indispensable part of the full -color LED display manufacturing link, and has good application prospects. According to different application occasions, point -by -point correction technology can be divided into two types: one is box -by -box correction on the production line (box correction); the other is the on -site large -screen correction (on -site correction).

　　1. Box correction

　　The box school is a kind of correction of the production line. It requires full -color LED display manufacturers to add this link to the production of the assembly line. Under normal circumstances, the box is corrected by the last link before the factory, which is mainly used to eliminate the brightness and color difference between the interior of the box and the box between the box, and increase the uniformity of the LED display after stitching.

　　There are three common practices: the following:

　　The first is to stitch all the boxes and observe the display effect, but the workload of stitching is large, and it is inconvenient to achieve;

　　The second is to randomly extract some boxes for stitching and observe the correction effect;

　　The third is to use the measurement data recorded by the correction system to simulate the correction effect of all boxes. The LED production flow lines that are added with box correction and simulation assessment/sampling inspection are added.

　　Box correction needs to be carried out in the dark room, and it needs to be equipped with a facade imaging equipment and chromosometer to measure the brightness and color information of each box. In order to ensure that the correction process of all boxes is carried out under the influence of external environmental conditions, the goals of its brightness and color consistency are achieved. The dark room is required to be completely sealed, and the temperature and humidity are constant. In the position of the box and correction instrument, the box must be placed on the base to avoid the effect of the ground reflection.

　　2. On -site correction

　　On -site correction technology can choose the right viewing location for correction to ensure that the LED display has achieved satisfactory display effects in the on -site application environment. However, the complex and changeable on -site environment and off -site technical support is a problem that restricts on -site correction. In particular, the cost and difficulty of some foreign orders on site correction are relatively large.

　　Due to the discreteness, attenuation, and the discrete nature of the circuit component of the LED display, the LED full -color display has the phenomenon of inconsistent brightness and the inconsistency of the color, which seriously affects the display quality. In order to overcome the brightness of the LED display and the non -uniformity of the chroma, the correction technology came into being, and it develops rapidly. It can significantly improve the uniformity of the LED display and improve the display quality.

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