Anti aging knowledge that sunrise LED display has to know
252 views admin 2018-08-17
Sunrise Optoelectronics Technology Co., Ltd
. is located in Pinghu, Shenzhen. It is a manufacturer and distributor of LED display screen. It produces products with high performance and durability. It cooperates with many foreign distributors and exports products to many countries, such as Belgium, France, Saudi Arabia, Greece, Australia and so on. Publicity has made a great contribution.
Sunrise LED display?screen
advertising media also has the characteristics of high effective arrival rate, compared with television, newspapers and other media delivery forms, LED display prices are relatively low. These unique values make the full color LED advertising screen
media become the upstart of outdoor media. Different from traditional outdoor media, full color LED display screen is not only outdoor media, but also has the characteristics and advantages of TV and other media. It has a larger creative space and a broader space for space-time interaction and communication with consumers. It can meet the individual needs and has the concept of communication in the digital age. Unique screen form.
We often have this kind of problem when we use sunrise LED display screen
. Sunrise LED display screen works normally at the beginning of the product, but after lighting for a period of time, it will appear dark light, flashing, failure, intermittent light and other phenomena, which bring serious damage to the product. The reasons for this phenomenon are as follows:
1.When applying products, there are problems in the welding process, such as welding temperature is too high, welding time is too long, do not do a good job in anti-static work, etc. These problems are more than 95% caused by the packaging process.
2.LED itself quality or production process.
Preventive measures are:
1, do well in the control of welding process.
2.Aging testing of products: Aging is an important guarantee for the reliability of electronic products, is the last indispensable step in the production of products. LED products can improve efficiency after aging, and contribute to stable performance in later use. Sunrise LED display
?screen aging test is a very important link in product quality control, but it is often overlooked, unable to carry out the correct and effective aging. LED aging test is based on the characteristics of the failure rate curve of the product, that is, the bathtub curve to take measures to improve product reliability, but this method is not necessary, after all, aging test is at the expense of a single LED product life.
LED aging methods include constant current aging and constant pressure aging. Constant current source means constant current at any time. The problem of frequency is not constant current. It's an alternating current or a pulsating current. AC or pulsating current source can be designed as constant RMS, but this power source can not be called constant current source. Constant current aging is the most scientific LED aging mode, which is the most consistent with the working characteristics of LED current. Overcurrent impact aging is also the latest aging method adopted by LED display manufacturers. This aging method is carried out by using frequency-adjustable and Current-Adjustable constant current source, in order to judge the quality life expectancy of LED in a short time, and can be selected. There are many hidden dangers that LED can't pick out.