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Do you guess right? What determines the life of the LED display?
Advertising led electronic display has gradually appeared in the streets, all kinds of colors, dress up our city, but advertising led electronic display is also a life span, without reasonable maintenance, will no longer be able to use. Then, what are the factors that determine the lifetime of advertising led electronic displays? How to treat the symptoms is particularly important. Let's take a look at the factors that determine the lifetime of advertising led electronic displays.
1, the impact of LED light source device performance
The LED lamp bead device is the most critical and most relevant component of the advertising screen. For LED lamp beads, the following indicators are mainly: attenuation characteristics, water vapor permeability characteristics, UV resistance. If LED advertising screen manufacturers do not evaluate the index performance of LED lamp beads, they will be applied to advertising screens, which will lead to a large number of quality accidents, which will seriously affect the life of advertising led electronic screens.
2. Influence of supporting components
In addition to LED lamp light sources, advertising led electronic screen also uses many other supporting components, circuit boards, plastic housings, switching power supplies, connectors, chassis, etc., any one part has quality problems, there are It may cause the life of the screen to decrease. Therefore, the life of the advertising screen is determined by the life of the key component that is the shortest life. For example, LEDs, switching power supplies, and metal enclosures are all based on the 8-year standard. The circuit board's protection process performance can only support its work for 3 years. After 3 years, the corrosion will be damaged, so we can only get a 3 years. Lifetime display.
3. Influence of the production process on the product
How the production process of LED advertising screen products determines the fatigue resistance. The anti-fatigue performance of the module produced by the inferior three-prevention treatment process is difficult to guarantee. When the temperature and humidity change, cracks will appear on the circuit board protection surface, resulting in a decrease in the protective performance.
Therefore, the production process of the advertising led electronic display screen is also a key factor in determining the life of the display screen. The production processes involved in the production of display screens include component storage and pretreatment processes, furnace welding processes, three-prevention process processes, and waterproof sealing processes. The effectiveness of the process is related to material selection and ratioing, parameter control and operator quality. For the vast majority of advertising led electronic display manufacturers, the accumulation of experience is very important, a factory with many years of experience will control the production process. More effective.
4. The effect of display work environment
Due to different uses, the working conditions of advertising screens vary greatly. From the environmental perspective, the indoor temperature difference is small, no rain and snow and ultraviolet light; outdoor temperature difference of up to 70 degrees, plus wind, sun and rain. The harsh environment will exacerbate the aging of the display. The working environment is an important factor affecting the life of the display.
In a certain sense, the life of the LED determines the life of the advertising screen. The lifetime of an LED is usually the lifetime at which the luminous intensity decays to 50% of the initial value. LED as a semiconductor material, people often say that there are 100,000 hours of life, but that is under the ideal conditions of assessment. In actual use, it is not reachable.
The life of the LED lamp beads determines the life of the advertising screen, not to say that the LED lamp beads life is equal to the advertising screen life. When the advertising screen is working, not every LED is working at full load every moment. In the case of a normal display of a video program under a led display, the lifetime of an advertising led electronic screen should be about 8 times that of an LED lamp. When the LED lamp beads work under the condition of low current, life can be longer.