LCD modules must be driven within the specified voltage range. Driving voltages higher than the specified will shorten the life of the LCD module. DC current will cause LCD degradation, so avoid using DC drive. When the temperature is lower than the operating temperature range, the response time of the LCD will be significantly longer. When the temperature is higher than the operating temperature range, the LCD color will become darker. The above phenomenon will return to normal when it returns to work within the operating temperature range, and is not a product quality problem. If the display area is pressed hard under working conditions, some characters will be displayed incorrectly, but they will return to normal after being closed once. Condensation on the electrode terminals can cause an open circuit due to electrochemical reactions. At the maximum operating temperature, the humidity should be less than 50RH. Storage: For long-term storage (such as one year), the following methods are recommended: Seal the module in a polyethylene plastic bag to prevent moisture. Store in a place protected from light and within the specified storage temperature range. Avoid any objects touching the surface of the polarizer during storage. (It is recommended to store it in the inner packaging bag upon delivery) Safety: It is recommended to break the damaged or useless LCD module into pieces and clean the liquid crystal with ethanol and propanol, and then burn it. If you accidentally get the leaked liquid crystal from a damaged LCD screen on your hands, please clean it with soapy water.