"Anti-aging" Magic Way of Full-color LED Display Screen

With the development of science and technology, LED advertising screen has developed from the original monochrome display to the full-color LED Display Screen nowadays. Full-color media also have the advertising characteristics of high effective arrival rate and relatively low price. Unlike traditional outdoor media, it has both the characteristics and advantages of TV and other media, and has greater creative space and advantages. The broader space for interaction and communication with consumers in time and space can meet the individual needs. It has the concept of communication in the digital age and is a unique form of screen.
When we use led, we often have such problems. The Led Display screen works normally at the beginning of the product, but after a period of lighting, there will be dark light, flashing, failure, intermittent lighting and other phenomena, which will bring serious damage to the product. The reasons for this phenomenon are as follows: when applying products, there are some problems in welding process, such as too high welding temperature, too long welding time, and not doing a good job of anti-static work. More than 95% of these problems are caused by the packaging process. Or the quality of the LED itself or the manufacturing process.
The prevention method is simply aging test. Aging is an important guarantee for the reliability of electronic products and the last essential step in the production of products. LED products can improve the efficiency after aging, and help to stabilize the efficiency of later use. Aging test of LED advertising screen is a very important link in product quality control, but it is often neglected in many cases and can not carry out correct and effective aging. The aging test of LED is based on the characteristics of the failure rate curve, i.e. bathtub curve, to improve the reliability of the product, but this method is not necessary. After all, the aging test of LED is at the expense of the life of a single LED product, including constant current aging and constant pressure aging. Constant current source means that the current is constant at any time. The problem of frequency is not constant current. That's AC or pulsating current. AC or pulsating current sources can be designed with constant RMS, but they can not be called constant current sources. Constant current aging is the most scientific way to aging LED, which is in line with the working characteristics of LED current. Overcurrent shock aging is also the latest aging method adopted by Led Display manufacturers. It is carried out by using constant current source with adjustable frequency and current, in order to judge the quality life expectancy of LED in a short time, and can be selected. Many hidden dangers of conventional aging can not be identified by LED.
So the friends who are going to buy full-color LED display screen must wipe their eyes and choose a good supplier. It is not feasible to be too small, and there is basically no aging test link out of the factory. Only after the factory aging test will the old slowly.