Outdoor led display has gradually appeared in the streets, all kinds of, dressed our city, however, LED display is also a life expectancy, without reasonable maintenance, will not be able to use. So, what are the factors that determine the life of the Led display? How to remedy the case is especially important. Let’s take a look at the factors that determine the life of the outdoor LED display.
1, LED light source device performance
LED lamp device is the most important and most advertising screen associated with the life of the components. For LED, is mainly the following indicators: attenuation, water vapor permeability, anti UV performance. If the evaluation index of performance of outdoor led display manufacturers of LED lamp does not pass, is applied to the outdoor screen, will lead to a large number of quality accidents, serious impact on the life of outdoor led display.
2., supporting components
In addition to the LED lamp light source, LED display also uses many other supporting parts, circuit board, plastic shell, shell connectors, switching power supply, etc., any parts quality problems, are likely to lead to reduced screen life. Therefore, the life of the ad screen is determined by the life span of the critical component of the shortest life. For example, LED, switching power supply, according to the standard 8 years of metal material, and the protective circuit board process performance can only support the work of 3 years, 3 years later because of rust will be damaged, then we can only get a 3 year life of the screen
3., the production process on the product
How does the production process of outdoor led display determine the fatigue resistance?. It is difficult to guarantee the fatigue resistance of the module produced by the inferior three proof treatment process. When the temperature and humidity changes, cracks appear on the protective surface of the circuit board, which leads to the decrease of the protection performance.
Therefore, LED display production process is also a key factor to determine the screen life. Display production involves the production process: components storage and pretreatment process, furnace welding process, three prevention process, waterproof sealing process, etc.. The effectiveness of the process and materials selection and proportioning, control parameter and operator quality, for the vast majority of outdoor led display manufacturers, the accumulation of experience is very important, a factory with years of experience in the production process of the control will be more effective.
4. Display screen working environment
Because of the different uses, the advertisement screen has different working conditions. From the environment perspective, the indoor temperature is small, effect of no rain and UV; outdoor temperature up to 70 degrees, and exposed to the weather and rain. Harsh environments exacerbate the display’s aging, and the working environment is an important factor that affects the life of the display.
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In a sense, the life of LED determines the life of the ad screen. The lifetime of a LED is usually attenuated to 50% of its initial value by its intensity of illumination, which is the lifetime. LED as a semiconductor material, it is often said that there are 100 thousand hours of life, but that is under the ideal conditions of assessment. In actual use, however, it is not possible.
how to make the led display keep good performance in long term?
LED lamp life determine led display screen life, is not to say that the LED lamp life is equal to the led screen life. Outdoor led display at work and not every LED all the time in full load, display in normal play video programs under the condition of life of outdoor led display should be about 8 times the life of the LED lamp, LED lamp when working in the small current situation can live longer.
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