Ok thank you floresta to give me insurance that the LCD will not be damaged when temp is under 0°c.
I have mounted the 1' and 14' pin to high level same wire on VDD.
So I thought like you jrraines, about putting this wire on a digital output of arduino but now I wonder about gardner's remark. I think there is a problem of current level provide to both 1' and 14' pins of LCD.
Can you confirm to me this potential problem?
My goal is to power on the LCD only when an ultrasonic sensor detect me walking under my arduino box.
This arduino box will be outside my home at 2,5 meter height.
Thank you by advance for your response.