Factors Affecting The Life Of Full-color LED Display
1. The influence of product temperature on the life of the display
The minimum consumption of any product can be guaranteed only if the life of any product is maintained during the service life. As an integrated electronic product, the LED display is mainly composed of the control board, switching power supply, and illuminator of electronic components. Life is related to operating temperature.
2. The impact of environmental dust on the life of display products
The deposition of dust will also affect the heat dissipation of electronic components, which will cause the temperature of the components to rise rapidly, and then the thermal stability will decrease or even leakage will occur, and in severe cases, it will lead to burnout. In addition, dust can absorb moisture, corrode electronic circuits, and cause short-circuit failures.
3. The influence of humidity on product life
Moist gas will enter the inside of the IC device through the packaging material and the bonding surface of the components, causing the internal circuit to oxidize and corrode and open the circuit, causing the plastic to be separated from the inside of the chip or lead frame (delamination), wire bonding damage, chip Damage, internal cracks and cracks extending to the surface of the component.
4. Influence of corrosive gas on product life
Humidity and salty air environments can degrade system performance as they accelerate the effects of corrosion on metal components, as well as galvanic cells, especially when dissimilar metals come into contact. Another detrimental effect of moisture and salty air is the formation of films on the surfaces of non-metallic parts that degrade the insulating and dielectric properties of these materials, creating leak paths.
5. Influence of electromagnetic radiation on product life
When the electromagnetic radiation reaches 5V/m, the system will definitely make mistakes. The electromagnetic interference is enough to change the value of the CPU program counter PC, so that the microcomputer "jumps out" of the executing program by mistake, especially for the small signal circuit RF radiation interference, which is serious. It can burn the power supply of the system itself.
6. The impact of vibration on product life
Electronic equipment is often subjected to environmental shock and vibration during normal use and testing. This environment can cause physical damage to components and structural parts when the mechanical stress caused by the resulting deflection exceeds the allowable working stress of the component parts.
