1/65Duty, 1/9Bias Multiplexing Ration LCD Module for -20℃~+70℃ Operating Temperature

 

1: Please refer to the "Wiring Diagram" for the connection between the LCD module and the microcontroller. Note that the polarity of the positive and negative power supply cannot
Make a mistake, otherwise it will cause overcurrent, overvoltage, and burn the chips on the circuit.
2: After the wiring is correct, when starting to test the LCD module, turn on the logic power first, and then turn on the LCD
The driving power of the module; when the power is cut off, first turn off the driving power of the LCD module, and then turn off the logic power.
The signal level can only be input after the positive power supply is stably connected, such as inputting the signal level before the power supply is stable or after disconnection
flat, it may damage the IC in the LCD module.
3: The display effect of the liquid crystal display module will change accordingly with the change of temperature. The ambient temperature exceeds
When the operating temperature of the liquid crystal display module is exceeded, the liquid crystal state disappears and becomes a liquid state, and the display screen is black.
Be sure not to power on, and it can recover by itself after the temperature drops; on the contrary, if the temperature is too low, the liquid crystal will start to form ice flowers, causing
cause permanent damage. In addition, if stored at extreme temperature for a long time or subject to vibration and shock, the LCD will also produce gas.
Bubble.
This is why a temperature compensation circuit is added to the LCD module, or an external potentiometer is added to adjust
contrast.
4: The VOP output of the liquid crystal display module cannot be too high, which will affect the display effect and shorten the service life of the module
Life. Please refer to each product manual for the correct VOP voltage value.
Five: storage
1: Keep the original packaging.
2: The wide temperature type can be stored in the range of -30℃～+80℃; the general temperature type can be stored in the range of -10℃～+60℃
live.
3: Put it in a dark place and avoid strong light.
4: Do not place any items on the surface.
5: Avoid storage under extreme temperature/humidity conditions.