1. Prevent moisture
To prevent the dot matrix LCD liquid crystal display from being damp, compared to the CRT display, LCD is very fragile, and its requirements for air humidity are more stringent. If the humidity is maintained between 30% and 80%, the dot matrix LCD liquid crystal display is It can work normally, but if the indoor humidity is higher than 80% (southern area), condensation will occur inside the display, and the internal power transformer and other coils will leak and short-circuit, or burn out in serious cases. monitor. Therefore, if the dot matrix LCD liquid crystal display is not used for a long time, it needs to be energized regularly to drain the internal water vapor. Don’t worry if you find that there is already a slight condensation inside the useful dot matrix LCD screen, even if there is no professional "warm room", it does not matter, local materials can also be used for emergency treatment.
2. Prevent aging
Forgetting to turn off the dot matrix LCD liquid crystal display will generate heat. Although the heat generation has been reduced a lot compared with the CRT display, long-term use will also cause the fragile components to age. Generally speaking, if the dot matrix LCD screen is continuously turned on and used for more than 24 hours, the internal temperature will rise rapidly, so if it is not used, it is better to turn it off. Although long-term use does not necessarily cause the LCD display to burn out on the spot, it will damage it for a long time, because long-term use will cause the crystal to age or burn out.
