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LED display also has a life. What factors affect the life of LED display?
Time:2020-03-04
Views:755
The LED display screen also has a long life, and cannot be used again without reasonable maintenance. What factors determine the life of LED display? The most important thing is to find the right medicine. Let‘s take a look at the factors that determine the life of LED display.
Influence of LED light source performance
Led pearlescent device is the key and life-related important component of display screen. As far as LED lamp beads are concerned, they mainly refer to the following indicators: attenuation characteristics, water vapor permeability resistance, and UV resistance. If the manufacturer fails to evaluate the performance indicators of the LED display beads, a large number of quality accidents will occur in the LED display beads, which will seriously affect the service life of the LED display beads.
Influence of two supporting parts
In addition to the LED bead light source, the LED display screen also uses many other auxiliary components, such as circuit board, plastic shell, switching power supply, socket, shell, etc. if any of the components has quality problems, it may lead to a decrease in screen life. Therefore, the life of the display screen is determined by the life of its key components. For example, led, switching power supply, metal shell, etc. are all 8-year standard selection, while the protection process performance of the circuit board can only support its work for 3 years. After 3 years, it may be damaged due to corrosion, so we can only get a 7-year-old display screen.
Influence of production process on product quality
Anti fatigue performance is determined by the production process of LED display products. The circuit board produced by the low-quality three prevention treatment process has poor fatigue resistance. When the temperature and humidity change, the protective surface of the circuit board is prone to crack, resulting in the deterioration of the protective performance.
Therefore, the manufacturing process of LED display screen is also an important factor to determine the service life of the display screen. The main production processes involved in the production process include: component storage and pretreatment process, furnace welding process, three prevention treatment process, waterproof sealing process, etc. The effectiveness of the process flow is related to the selection and proportion of materials, parameter control and the quality of operators. For most LED display screen manufacturers, the accumulation of experience is very important. A factory with many years of experience will control the production flow more effectively.
Influence of display screen on working environment
Due to different purposes, the working environment of the display is different. As for the environment, the indoor temperature difference is small, and it is not affected by rain, snow and ultraviolet rays; The outdoor temperature difference can reach 70 degrees, plus wind, sun and rain. The bad environment will aggravate the aging of the display, and the working environment has a great impact on the service life of the display.
The service life of the LED determines the service life of the display to a certain extent. The lifetime of the light emitting diode generally takes the period that the luminous intensity decays to 50% of the initial value. As a semiconductor material, light emitting diodes are generally considered to have a lifetime of 100000 hours, but this is an evaluation under ideal conditions. The effect in the actual use state cannot be achieved.
The life of the LED determines the life of the display, but it does not mean that the life of the LED is equal to the life of the display. Display: not every LED can be displayed all-weather when it is working. In the case of normal video programs, the life of the LED display screen should be about 8 times that of the LED lamp beads. When the LED lamp beads work in the state of small current, their life can be extended.
Echo Li