1, the impact of temperature on product life
Any product in the life of the period and only in the appropriate working conditions under the failure rate is very low, and LED display as an integrated electronic products, it is mainly equipped with electronic components of the control panel, switching power supply, light-emitting devices Composition, and all of these life are closely related with the working temperature. If the actual operating temperature exceeds the scope of use of the product specification, not only will life shortened, but also the product itself will be seriously damaged.
2, the impact of dust on product life
To maximize the extended life of the LED display, the threat of dust can not be ignored. In the dust of the relatively large environment, because the PCB adsorption dust, and dust deposition will affect the heat dissipation of electronic components, which will lead to component temperature rise, and then the decline in thermal stability or even leakage, The In addition, dust will absorb moisture, corrosion of electronic circuits, resulting in short circuit failure. Dust volume is small, but the harm to the product can not be underestimated. Therefore, it is necessary to regularly clean up to reduce the probability of failure. When cleaning the dust inside the display, remember to disconnect the power and operate carefully.
3, the impact of moisture on product life
Although almost all of the LED display can be in the humidity of 95% of the environment to work, but the wet is still an important factor affecting product life. Moisture gas through the packaging materials and components of the joint surface into the IC device inside, resulting in internal circuit oxidation corrosion circuit, and the group during the welding process will make the heat into the IC internal heat generated by the pressure, so that plastic from Chip or lead frame on the internal separation (delamination), wire bundling damage, chip damage, internal cracks and cracks to the surface of the component, and even the occurrence of component bulging and burst, also known as "popcorn", which will lead to assembly Repaired or even scrapped. What is more important is that those invisible, potential defects will be integrated into the product, so that the reliability of the product problems. The improvement of the reliability of the wet environment includes the use of moisture-proof materials, dehumidifiers, protective coating cover and so on.