The LED display advertising media also has the characteristics of high effective reach. Compared with the media such as TV and newspapers, the price of LED display is relatively low. These unique values make the full-color LED advertising screen media naturally become the upstart of outdoor media. Different from traditional outdoor media, the full-color LED display is not just a pure outdoor media. It also has the characteristics and advantages of TV and other media. It has a larger creative space and a broader three-dimensional space for interaction and communication with consumers in time and space. It is a unique screen form that meets individual needs and has the concept of communication in the digital age.

We often encounter such problems when we use LED displays. The LED displays work normally at the beginning of the product, but after a period of time* there will be dim light, flickering, faults, intermittent lighting, etc. , Causing serious damage to the product. The reasons for this phenomenon are roughly as follows:

　　 1. When applying the product, there are problems with the soldering process, such as high soldering temperature, too long soldering time, failure to do anti-static work, etc. More than 95% of these problems are caused by the packaging process.

　　2, the quality of the LED itself or the production process.

　　 Prevention method

　　 1. Do a good job of controlling the welding process.

　　2. Carry out aging test on the product

　　Aging is an important guarantee for the reliability of electronic products and an essential step in product production. LED products can improve performance after aging, and contribute to stable performance in later use. LED display aging test is a very important link in product quality control, but it is often overlooked in many cases, and it is impossible to carry out correct and effective aging. The LED aging test is a countermeasure taken according to the characteristics of the product failure rate curve, that is, the bathtub curve, to improve the reliability of the product, but this method is not necessary. After all, the aging test sacrifices the life of a single LED product. At the cost.

　　LED aging methods include constant current aging and constant voltage aging. Constant current source means that the current is constant at any time. There is a frequency problem, not a constant current. That is alternating current or pulsating current. AC or pulsating current source can be designed to have a constant effective value, but this kind of power source cannot be called a constant current source. Constant current aging is a characteristic of LED current work and a scientific LED aging method; overcurrent impact aging is also a new aging method adopted by LED display manufacturers. This type of aging is carried out by using a constant current source with adjustable frequency and adjustable current. , In order to judge the quality and life expectancy of LEDs in a short time, and can pick out many hidden LEDs that cannot be picked out by conventional aging.