Outdoor LED display refers to the display made of full black shell bracket LED light. Compared with ordinary outdoor white lamp display, it has two obvious advantages of high contrast and high fidelity color. LED display screens use light-emitting diodes as pixels to present images. Light-emitting diodes are assembled from plastic brackets and light-emitting chips. Focus the reflection to ensure that the wafer with low brightness achieves a brighter effect. However, if black or gray is indicated on a white LED lamp bead, it must be affected by the white of the lamp bead, resulting in color distortion.
Please read the originial post here: http://ledcntrolcard.brandyourself.com/