1. The external leads of the LCM liquid crystal display module must not be connected incorrectly. When you want to debug the liquid crystal LCM, please pay attention to the correct wiring, especially the wiring of the positive and negative power supplies, which cannot be wrong. Otherwise, it may cause damage to the liquid crystal LCM components such as overcurrent, overvoltage, and chip burnout in the circuit;
2. When using the LCM LCD display module, the signal level can only be input after the positive power supply is stably connected and disconnected from the power supply. Do not apply voltage on the signal line when the power supply is not connected or the voltage of the connected power supply is unstable, as this may damage the IC and circuit in the LCM;
3. Due to the physical properties of liquid crystal materials, the contrast of liquid crystal will change correspondingly with temperature. Therefore, Shanghai Haopu Electronics' products all have negative power supply led out at the VOUT interface and provided to the system as contrast adjustment. You can create a temperature compensation circuit or simply arrange a potentiometer and return it to the V0 interface;
4. It should not be used outside the specified working temperature range or stored outside the storage limit temperature range. If the ambient temperature of LCM is lower than the crystallization temperature of liquid crystal material, the liquid crystal will crystallize. On the contrary, if the temperature is too high, the liquid crystal material will become an isotropic liquid, which destroys the molecular orientation. Both phenomena will cause LCM to lose its display function;
5. When the display screen is subjected to slight pressure, it will produce abnormal display. At this point, cut off the power, wait for a moment, and then turn it back on to restore normal operation;
6. When the surface of a liquid crystal display device or LCM liquid crystal display module is fogged up, do not use electricity to work, as this will cause electrode chemical reactions and result in wire breakage;
7. ICs in the form of COG or TAB are sensitive to light and may experience a decrease in their characteristics or even damage in strong light environments.
Maintenance and Storage of LCM LCD Display Module
Only isopropyl alcohol or ethyl alcohol can be used to clean LCM, other solvents (such as water) may damage LCM.
If stored for a long time (such as several years or more),
We recommend the following methods:
1. Put it into a polyethylene bag (preferably with anti-static coating) and seal the mouth;
2. Store between -10 ° C and+35 ° C;
3. Keep in a dark place and avoid strong light;
4. Never place any objects on the surface;
5. Strictly avoid storing under extreme temperature/humidity conditions
پیام شما باید بین 20 تا 3000 کاراکتر باشد!
